[go: up one dir, main page]

CN106603180A - Local broadcast of data using available channels of a spectrum - Google Patents

Local broadcast of data using available channels of a spectrum Download PDF

Info

Publication number
CN106603180A
CN106603180A CN201610663213.1A CN201610663213A CN106603180A CN 106603180 A CN106603180 A CN 106603180A CN 201610663213 A CN201610663213 A CN 201610663213A CN 106603180 A CN106603180 A CN 106603180A
Authority
CN
China
Prior art keywords
channel
data
available channel
digital
available
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610663213.1A
Other languages
Chinese (zh)
Inventor
育·艾伯特·王
维贾亚拉克什米·R·拉温德朗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US12/547,834 external-priority patent/US8374134B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of CN106603180A publication Critical patent/CN106603180A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
    • H04H20/63—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast to plural spots in a confined site, e.g. MATV [Master Antenna Television]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
    • H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/78—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by source locations or destination locations
    • H04H60/80—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by source locations or destination locations characterised by transmission among terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2385—Channel allocation; Bandwidth allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/49—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations
    • H04H60/51—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of receiving stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The application relates to local broadcast of data using available channels of a spectrum. In general, this disclosure relates to techniques for transmitting data for applications using one or more available channels of a spectrum. One example method comprises transforming data into a digital broadcast format, identifying at least one available channel of a spectrum, and transmitting the transformed data in the at least one identified available channel.

Description

Using the spot broadcasting of the data of the available channel of frequency spectrum
The application is special for the former Chinese invention of entitled " using the spot broadcasting of the data of the available channel of frequency spectrum " The divisional application of profit application.The Chinese Application No. 201080006074.6 of original application；The applying date of original application is 2 months 2010 3, its international application no was PCT/US2010/023085.
Subject application advocates on 2 3rd, 2009 apllied U.S. Provisional Application cases on July 2nd, 61/148,872,2009 Apllied U.S. Provisional Application case 61/222,845 and the apllied U.S. Provisional Application case 61/230 of on July 31st, 2009, The full content of each of 602 rights and interests, the application case is incorporated herein by reference.
Technical field
The present invention relates to transmitting of the data on radio network.
Background technology
At present, such as Wireless Display for multi-medium data of radio HDMI (HDMI) is some Solution is in exploitation.The main purpose of these solutions is that (for example, Set Top Box, numeral are more for replacement specific components Function CD (DVD) player, computing device) HDMI cables and display device between.
Some providers have been developed for the solution of the proprietary method for utilizing the transmitting for uncompressed video.Other solutions Certainly scheme can be with consumer electronics (for example, game machine or DVD player) for target and in host computer side and client-side two Specialized hardware is needed on person.The power consumption of these special purpose devices may be very high.Additionally, in some solutions, it is uncompressed The transmitting of video may limit any extended capability for supporting higher resolution data transmitting.
The content of the invention
Generally speaking, the present invention relates to be used to utilize one or more available channels of frequency spectrum to launch for applying journey The technology of the data of sequence.Some technologies can promote that using the identified available channel of frequency spectrum various service/application journeys will be used for The data of sequence are wirelessly transmitted to external device (ED) from one or more devices (for example, mobile device or handheld type devices).Lift For example, mobile device can utilize the available channel in television band spectrum that some multi-medium datas are transmitted into into display device.
A kind of case method is included：Convert the data into digital broadcast formats；At least one available channel of identification frequency spectrum； And launch the converted data in described at least one identified available channel.
A kind of instance communications device includes converting unit, channel identifier and digit emitter.Converting unit Jing is matched somebody with somebody Put to convert the data into digital broadcast formats.The channel identifier is configured to recognize at least one available letter of frequency spectrum Road.The digit emitter is configured to launch the converted number in described at least one identified available channel According to.
A kind of Example Computer readable memory medium warp knit code has following for carrying out one or more processors The instruction of action：Convert the data into digital broadcast formats；At least one available channel of identification frequency spectrum；And described at least one Launch the converted data in individual identified available channel.
Technology described in the present invention can be implemented with hardware, software, firmware or its any combinations.For example, it is various Technology can be practiced or carried out by one or more processors.As utilized herein, processor may refer to microprocessor, specially With integrated circuit (ASIC), field programmable gate array (FPGA), digital signal processor (DSP) or other it is equivalent integrated or from Scattered logic circuit.Software can be by one or more computing devices.Software comprising the instruction for performing the technology is initial Can be stored in computer-readable media and be loaded and performed by processor.
Therefore, any one of computing device multiple technologies as described in the present invention are made present invention also contemplates that including Instruction computer-readable storage medium.In some cases, the computer-readable storage medium can form computer journey Sequence stores a part for product, computer program storage product can be sold to manufacturer and/or in device.Calculate Machine program product may include computer-readable media, and in some cases, can also include encapsulating material.
Details in terms of illustrating one or more in following alterations and description.Further feature, target and excellent Will definitely be by the description and schema and apparent by claims.
Description of the drawings
Fig. 1 is the frame of an example of the communicator for illustrating to be communicably coupled to data sink via wireless network Figure.
Fig. 2 is to illustrate to be communicably coupled to one or more multimedia receivers and one via wireless network Or the block diagram of an example of the multimedia communication device of more than one multi-media output device.
Fig. 3 is to illustrate to be communicably coupled to one or more digital TV receivers and one via wireless network Or the block diagram of an example of the multimedia communication device of more than one display device.
Fig. 4 is the mobile multimedia communication dress for illustrating can be used as Fig. 2 and/or multimedia communication device demonstrated in Figure 3 The block diagram of the example put.
Fig. 5 is to illustrate to may be implemented in mobile multimedia communication device (for example, mobile multimedia communication demonstrated in Figure 4 Device) in digital TV processors and modulator/transmitter together with an example of channel identifier block diagram.
Fig. 6 is to illustrate to may be implemented in mobile multimedia communication device (for example, mobile multimedia communication demonstrated in Figure 4 Device) in digital TV processors and modulator/transmitter together with another example of channel identifier block diagram.
Fig. 7 is the block diagram of the example for illustrating multiple multimedia communication devices, and one of multimedia communication device serves as The master device of digital TV frequency bands (geographical position) data base is coupled to, and wherein remaining multimedia communication device serves as client dress Put.
Fig. 8 is the flow chart of an example of a method, and methods described can be by multimedia communication device (for example, Fig. 1 to Fig. 4 One of middle shown multimedia communication device is one or more of) perform with the unused portion of digital TV broadcasting frequency spectrum In identified channel on spot broadcasting media data.
Fig. 9 is the flow chart of an example of a method, and methods described can be by multimedia communication device (for example, Fig. 1 to Fig. 4 One of middle shown multimedia communication device is one or more of) perform with using spectral sensor and optionally from numeral The information identification available channel that TV frequency bands (geographical position) data place is received.
Specific embodiment
Fig. 1 is the block diagram of the example for illustrating communicator, and the communicator is via wireless network coupling by correspondence Close data sink.Data (for example, multimedia) can be sent to data sink 9 and/or be connect from data by communicator 1 Receive the receiving data of device 9.In some cases, data can include voice data, video data, text data, speech data And the multi-medium data of at least one of graph data.In the example of fig. 1, although by communicator 1 be shown as only via Wireless network 7 transmits data to a data sink 9, but in some cases, communicator 1 is also possible to can be via nothing Gauze network 7 is by data is activation or is broadcast to one or more data sinks (including data sink 9).
In some instances, wireless network 7 can include network, and it is provided on for the frequency spectrum of digital broadcast formats The support of communication, names a few, and digital broadcast formats are, for example, that Advanced Television Systems Committee (ATSC) form, numeral are regarded Frequency broadcast (DVB) form, T-DMB (T-DMB) form, Terrestrial Integrated Services digital broadcasting (ISDB-T) lattice Formula or animation expert group transportation flow (MPEG-TS) form (are provided) by international standard ISO/IEC 13818-1, such as will it is following more Describe in detail.(DVB standard is a set of Open Standard for receiving in the world for DTV, and by European Telecommunication Standard The joint technical committee of meeting (ETSI), European electrotechnics standardization committee (CENELEC) and European Broadcasting Union (EBU) (JTC) issue.DMB is the digital radio lift-off technology for multi-medium data to be sent to mobile device.) digital broadcasting lattice Formula can be not provide in the data launched or launched the not specified concrete or specific destination of data broadcasting format.Citing For, digital broadcast formats can include the header of broadcasted packet or unit not including the form of any destination-address.
Communicator 1 can be included in the fixing device of specified location transmitting or receiving data, or mobile device.Communication dress Put 1 can include isolated system or can be larger system a part.For example, communicator 1 can be logical comprising radio multimedium T unit (for example, wireless mobile hand-held machine), digital camera, numeral TV, video camera, visual telephone, digital multimedia are played Device, personal digital assistant (PDA), video game machine, personal computer or laptop devices or other video-units, or for above-mentioned A part for device.Communicator 1 may also include in can be used in some or all in said apparatus one or one with In upper integrated circuit or chip.
As demonstrated in Figure 1, communicator 1 may include the digital data conversion unit/transmitting for being coupled to channel identifier 5 Device 3.Although the communicator 1 that digital data conversion unit/emitter 3 and channel identifier 5 are shown as being included in Fig. 1 It is interior, but may not may be required to be included in communicator 1 in these components 3, one of 5 or both in all examples.Lift For example, in some cases, these components 3,5 may include in being coupled in the isolated system of communicator 1 or peripheral unit. Therefore, digital data conversion unit/emitter 3 and channel identifier 5 can be a part for one or more devices, described One of one or more devices can be communicator 1.In FIG, exclusively for the purposes of illustration, in this example will It is assumed that a part of these components 3,5 for communicator 1.
Communicator 1 can receive, process and produce data.For example, communicator 1 can be many possible wireless On any one of electricity or access network (including honeycomb fashion, local wireless or broadcasting format (including ATSC, DVB or T-DMB)) Receiving data.In some instances, communicator 1 can connect on wireline interface or via one or more embedded interfaces Receive data.For camera or other Video Camera applications, can also produce by uncompressed form via image/video sensor Data.In some instances, data may include voice data, video data, graph data, text data, speech data or unit One of data are one or more of.
Communicator 1 is further able to data broadcasting via wireless network 7 to one or more other device (examples Such as, data sink 9).Digital data conversion unit/emitter 3 can convert the data into optional network specific digit broadcasting format.Citing For, digital data conversion unit/emitter 3 be able to may encode in accordance with optional network specific digit broadcasting format (for example, ATSC, DVB, T-DMB data), and modulate encoded data.
Channel identifier 5 is capable of identify that at least one available channel of frequency spectrum, and wherein device 1 may participate in described at least one The identification of individual available channel.For example, the identification of at least one available channel can be initial by communicator 1.At some In example, channel identifier can recognize that being not used and/or unauthorized for broadcast spectrum (for example, digital television broadcasting frequency spectrum) At least one of part available channel.In some instances, at least one available channel can be blank comprising television band Space.Such as by Federal Communications Committee (FCC) on November 4th, 2008 it is formal by and be used as on November 14th, 2008 " second report and order and memorandum suggestion and order (Second Report and that FCC orders 08-260 is issued Order and Memorandum Opinion and Order) " middle regulation, " white space " can include broadcast television spectrum It is current not utilized by licensed service and therefore the unused portion that be utilized by unauthorized transmitting set or position.
In some instances, available channel can be comprising current unappropriated channel.In one example, available channel can be wrapped Containing the channel currently not utilized by any authorized or licensed user's (for example, obtaining the user of FCC licenses).In an example In, available channel can include current not by licensed user or by unauthorized user (for example, other white space channels User) channel that utilizes.In some cases, available channel can be included in the secondary license obtained from another licensed user The channel that can be utilized by user at once afterwards.
In some cases, channel identifier 8 can be based on any of the application program or service performed on communicator 1 Specific requirement or demand carry out multiple available channels that identification data broadcast may need.In one example, available channel is current Not by utilizing with the identical geographical location of communicator 1 or neighbouring authorized user and acceptable by communicator 1 The channel for utilizing.
After one or more than one available channel is recognized, converting unit/emitter 3 at once can be at least one Jing Converted (for example, warp knit code, modulated) data are transmitted into into data via wireless network 7 in the available channel of identification Receptor 9.In some cases, communicator 1 will be based on one or more services of the local runtime on communicator 1 Or application program execution and automatically or via user input perform one of above-mentioned action or one or more of.At some In the case of, data sink 9 may include the feature for demodulating and/or decoding the broadcast data received from communicator 1. Under certain situation, converting unit/emitter 3 can at least one identified available channel via wireless network 7 by data It is broadcast to multiple data sinks (including data sink 9).
As described above, channel identifier 5 is capable of identify that at least one of the broadcast spectrum for optional network specific digit broadcasting format Available channel.In one example, channel identifier 5 may include spectral sensor, and the spectral sensor is to wide by sensing Broadcast the signal message in one or more range of channels or frequency band in frequency spectrum to recognize at least one available channel.One In example, channel identifier 5 can access data base (for example, digital TV frequency bands data base, for example, the numeral for being shown in Figure 5 TV frequency band data bases) recognizing at least one available channel.
Fig. 2 is the block diagram of the example of the multimedia communication device 4 for illustrating to may include channel identifier 8, and the multimedia is led to T unit is communicably coupled to one or more communication sinks 12A-12N and one or one via wireless network 10 Individual above multi-media output device 14A-14N.Data (for example, multimedia) can be sent to one by multimedia communication device 4 Or more than one receptor 12A-12N and/or from one or more receptors 12A-12N receiving datas.In certain situation Under, data can include at least one of voice data, video data, text data, speech data and graph data Multi-medium data.
In some instances, wireless network 10 can be included and provided to logical on for the broadcast spectrum of digital broadcast formats The network of the support of letter, names a few, and digital broadcast formats are, for example, Advanced Television Systems Committee (ATSC) form, number Word video broadcasting (DVB) or T-DMB (T-DMB) form, as will be described in more detail in the following.(DVB standard It is a set of Open Standard for receiving in the world for DTV, and by ETSI European Telecommunications Standards Institute (ETSI), European electrician The joint technical committee (JTC) of technology standardization committee (CENELEC) and European Broadcasting Union (EBU) issues.DMB is use In the digital radio lift-off technology that multi-medium data is sent to mobile device.)
Multimedia communication device 4 can be included in the fixing device of specified location transmitting or receiving data, or mobile device. Multimedia communication device 4 can include isolated system or can be a part for larger system.For example, multimedia communication device 4 Can be comprising wireless multimedia communication device (for example, wireless mobile hand-held machine), digital camera, numeral TV, video camera, video electricity Words, digital multimedia player, personal digital assistant (PDA), video game machine, personal computer or laptop devices or other Video-unit, or for a part for said apparatus.Multimedia communication device 4 may also include in some that can be used in said apparatus Or in all of one or more integrated circuits or chip.
As shown in FIG. 2, multimedia communication device 4 may include the digital many matchmakers for being coupled to multimedia channel evaluator 8 Body converting unit/emitter 6.Although digital multimedia converting unit/emitter 6 and multimedia channel evaluator 8 are shown as Be included in the multimedia communication device 4 in Fig. 2, but may may not in all examples these components 6, one of 8 or two Person is required to be included in multimedia communication device 4.For example, in some cases, these components 6,8 may include in coupling To in the isolated system or peripheral unit of multimedia communication device 4.Therefore, digital multimedia converting unit/emitter 6 and many matchmakers Body channel identifier 8 can be a part for one or more devices, and one of one or more than one device can For multimedia communication device 4.In fig. 2, exclusively for the purposes of illustration, it will be assumed that these components 6,8 are many matchmakers in this example A part for body communication device 4.
Multimedia communication device 4 can receive, process and produce multi-medium data.For example, communicator 4 can permitted More possible radio or access network (including honeycomb fashion, local wireless or broadcasting format (including ATSC, DVB or T-DMB)) Any one of upper receive multi-medium data.For camera or other Video Camera applications, can also pass via image/video Sensor presses uncompressed form and produces multi-medium data.In some instances, multi-medium data may include voice data, video counts According to, one of graph data, text data, speech data or metadata or one or more of.
Multimedia communication device 4 be further able to via wireless network 10 by multimedia data broadcast to or one with Upper other devices (for example, multi-media output device 14A-14N).Digital multimedia converting unit/emitter 6 can be by multimedia Data conversion is into optional network specific digit broadcasting format.For example, digital multimedia converting unit/emitter 6 may can be encoded and abided by The multi-medium data of optional network specific digit broadcasting format (for example, ATSC, DVB, T-DMB) is kept, and modulates the multi-medium data of warp knit code.
Multimedia channel evaluator 8 is capable of identify that at least one available channel of frequency spectrum, wherein recognizing by multimedia communication Device 4 is initial.In some cases, multimedia channel evaluator 8 can be based on the application journey performed on multimedia communication device 4 Any specific requirement or demand of sequence or service is recognizing multiple available channels that multimedia broadcasting may need.In an example In, available channel be it is current not by with the identical geographical location of multimedia communication device 4 or neighbouring authorized user Using and the acceptable channel utilized by multimedia communication device 4.
After one or more than one available channel is recognized, converting unit/emitter 6 at once can be at least one Jing Via wireless network 10 converted (for example, warp knit code, modulated) data are transmitted in the available channel of identification many One of media output device 14A-14N or one or more of.In some cases, multimedia communication device 4 will be based on more Locally execute on medium communication device 4 one or more service or application program operation and automatically or via user It is input into perform one of above-mentioned action or one or more of.
For example, in one example, application program can determine that wide only by specified content of multimedia via wireless network 10 It is multicast to multi-media output device 14A.Multimedia receiver 12A can receive broadcast data, and may include multimedia receiver 12A Be tuned to appropriate channel tuner, just via the appropriate channel from the broadcast data of multimedia communication device 4.Multimedia reception Device 12A then provides received data to multi-media output device 14A for processing (for example, for showing).
In another example, application program can determine that concurrently by specified broadcasting multimedia content to multi-media output device Many persons (for example, while video data is transmitted into into multiple display devices) in 14A-14N.In this case, multimedia connects Receiving device 12A-12N can each receive broadcast data, and can each include one be tuned to appropriate channel (for example, frequency or frequency band) Tuner, just via the appropriate channel from the broadcast data of multimedia communication device 4.Each multimedia receiver 12A-12N connects And received data is provided to its corresponding multi-media output device 14A-14N for processing.
In some cases, multimedia receiver 12A-12N may include for demodulating and/or decoding from multimedia communication dress Put the feature of the broadcast data of 4 receptions.In some cases, multi-media output device 14A-14N may include this feature.It is many One of media output device 14A-14N or one or more of can be each self-contained relative to its corresponding multimedia receiver 12A- The external device (ED) of 12N.In some instances, one of multi-media output device 14A-14N or one or more of is respectively it A part of corresponding multimedia receiver 12A-12N is integrated in its corresponding multimedia receiver 12A-12N.
As described above, multimedia channel evaluator 8 be capable of identify that for optional network specific digit broadcasting format broadcast spectrum extremely A few available channel.In one example, multimedia channel evaluator 8 may include spectral sensor, and the spectral sensor is used To recognize at least one by sensing one or more range of channels in broadcast spectrum or the signal message in frequency band Available channel.In one example, multimedia channel evaluator 8 can access data base (for example, digital TV frequency bands data base, for example, The digital TV frequency bands data base for being shown in Figure 5) to recognize at least one available channel.
For example, multimedia communication device 4 may include geographic positioning functionality, and whereby multimedia communication device 4 can Determine its geographical position (for example, by using global positioning system (GPS) or other similar assemblies；Pilot signal or other are fixed Position technology).In this example, multimedia communication device 4 can provide this positional information to numeral TV frequency band data bases.Digital TV Frequency band data base can be filled with location-based channel information, thereby increases and it is possible to can provide the geography to multimedia communication device 4 The list of the current any available channel taken by multimedia communication device 4 in region.
From multimedia communication device 4 to one of multi-media output device 14A-14N or one or more of broadcast multimedias Data can provide some advantages.For example, can be similar to distributed transmitting device network (but with potential less problem) The spot broadcasting from multimedia communication device 4 to multi-media output device 14A-14N is set up (for example, when the position of these devices When close, such as in a house or building).Because broadcast can be limited to short distance, propagate even with potential sight line type, therefore Stationary problem can be avoided.
If also, multimedia communication device 4 is for mobile device and multi-media output device 14A-14N includes one or one Above television equipment, then communicator 4 just easily mobile multimedia content can be extended to one or more TVs Device, without physically by communicator 4 be coupled to output device 14A-14N (for example, by using HDMI, VGA or its Its audiovisual cable).Additionally, digital TV content can be broadcast to multiple television equipments by communicator 4 simultaneously (for example, having In one family of multiple television sets).
Therefore, under a kind of scene, user can using multimedia communication device 4 by multimedia data broadcast to other in phase With position or not in the multi-media output device 14A-14N of same position.For example, user can arrange nothing in the family of user Gauze network by multimedia communication device 4 being coupled to other devices.In one example, multimedia communication device 4 can be comprising individual Computer or laptop computer.User may want to that the multi-medium data processed by multimedia communication device 4 is (for example, individual People's performance (personal presentation), TV programme or film, Web content, stream-type video, digital photo) transmitting To one or more TVs (for example, in one or more rooms at home).Multimedia communication device 4 can recognize that One or more available channels are so that by this multimedia data broadcast, to this one or more TV, this is provided need not Content is extended to into TV (for example, giant-screen and/or height from computer in the case of using any electric wire or other physical connections Definition television) convenient manner.
Fig. 3 is the block diagram of an example of the multimedia communication device 16 for illustrating to may include digital TV channel identifiers 20, institute State multimedia communication device 16 and be communicably coupled to one or more digital TV receivers via wireless network 22 24A-24N and one or more display devices 26A-26N.In figure 3, the digital TV channels of multimedia communication device 16 are known Other device 20 is multimedia channel evaluator (for example multimedia channel evaluator of multimedia communication device 4, demonstrated in Figure 2 8) a example.Display device 26A-26N is multi-media output device (for example, multi-media output device demonstrated in Figure 2 Example 14A-14N).
As shown in fig. 3, multimedia communication device 16 includes that the digital TV for being coupled to digital TV channel identifiers 20 turns Change unit/emitter 18.Although digital TV converting units/emitter 18 and numeral TV channel identifiers 20 are shown as being included in In multimedia communication device 16 in Fig. 3, but may these components 18, one of 20 or both are in all examples Need to be included in multimedia communication device 16.For example, in some cases, these components 18,20 may include in coupling To in the isolated system or peripheral unit of multimedia communication device 16.Therefore, digital TV converting units/emitter 18 and numeral TV Channel identifier 20 can be a part for one or more devices, and one of one or more than one device can be Multimedia communication device 16.In figure 3, exclusively for the purposes of illustration, it will be assumed that these components 18,20 are many matchmakers in this example A part for body communication device 16.
Multimedia communication device 16 can receive, process and produce multi-medium data.Multimedia communication device 16 is further Can via wireless network 22 by multimedia data broadcast to one or more other devices, for example, display device 26A- 26N.Multi-medium data can be converted into digital broadcast formats by digital TV converting units/emitter 6, and (for example, coding observes spy Determine the multi-medium data of digital broadcasting TV forms (for example, ATSC), and modulate the multi-medium data of warp knit code).
Digital TV channel identifiers 20 are capable of identify that being not used for the broadcast TV frequency spectrums for optional network specific digit broadcast TV forms The available TV channels at least one of part, wherein this identification is initial by multimedia communication device 16.In some cases, numeral TV channel identifiers 20 can be based on multimedia communication device 16 perform application program or service any specific requirement or Demand is recognizing multiple available channels that multimedia broadcasting may need.
After one or more than one available channel is recognized, converting unit/emitter 18 is at once using at least one Individual identified available channel is via wireless network 22 by converted data (for example, warp knit code, modulated multimedia number According to) it is transmitted into one of display device 26A-26N or one or more of.In some cases, multimedia communication device 16 is by base In the local runtime on multimedia communication device 16 one or more service or application program execution and automatically or Carry out one of initial aforesaid operations or one or more of via user input.
Fig. 4 is the block diagram of the example for illustrating mobile multimedia communication device 30, the mobile multimedia communication device 30 Can be used as multimedia communication device 4 and/or multimedia communication device 16 demonstrated in Figure 3 demonstrated in Figure 2.The many matchmakers of movement Body communication device 30 includes mobile device, for example, radio communication device or hand-held set.
As shown in the example of Fig. 4, mobile multimedia communication device 30 includes various assemblies.For example, here is special In determining example, mobile multimedia communication device 30 includes one or more multimedia processors 32, a display processor 34th, an audio output processor 36, an embedded display 38, the numeral TV converting units of embedded speaker 40 ,/emitter 42 and a channel identifier 44.Multimedia processor 32 may include one or more video processors, one or one with Upper audio process and one or more graphic process unit.Each of processor included in multimedia processor 32 May include one or more decoders.
Multimedia processor 32 is coupled to both display processor 34 and audio output processor 36.Multimedia processor The videos and/or graphic process unit included in 32 can produce Jing provide to display processor 34 for further process and The image shown on embedded display 38 and/or graphic multimedia data.For example, display processor 34 can be to image And/or graph data perform one or more operation, for example, bi-directional scaling, rotation, color change, cutting or other Rendering operations.Any audio process included in multimedia processor 32 can produce Jing provide to audio output processor 36 with For the audio multimedia data for further processing and export to embedded speaker 40.The use of mobile multimedia communication device 30 Family via embedded display 38 and embedded speaker 40 therefore, it is possible to checking and hear the expression of multi-medium data.
In addition to it will export multi-medium data and provide to embedded display 38, display processor 34 can also output it Digital TV converting units/emitter 42 is provided.In addition, audio output processor 36 can output it offer to numeral TV conversions Unit/emitter 42.As a result, digital TV converting units/emitter 42 can process multiple multimedia data streams.In some examples In, corresponding output multi-medium data can be stored in one or one by display processor 34 and/or audio output processor 36 In with upper bumper, then one or more than one buffer is accessed to retrieve by digital TV converting units/emitter 42 Data.Digital TV converting units/emitter 42 may include for multi-medium data to be converted into into the optional network specific digit forms of broadcasting (example Such as, coding, modulation data) and in one or more identified available channels via wireless network by converted number According to the various assemblies (being more fully described referring to Fig. 5 as following) for being transmitted into another device.
In some cases, digital TV converting units/emitter 42 can be by from display processor 34 and audio output The conversion of multiple multimedia data streams and/or be encapsulated into the indivedual single journey that can launch on multiple broadcast channels that reason device 36 is received Sequence transportation flow.In some cases, the plurality of multimedia data stream can be encapsulated in same transportation flow and in single channel Transmitting.Can be using a media stream as the complementarity multimedia messages or the picture-in-picture of metadata included with regard to multi-medium data (PIP) data path transmitting.Metadata may include in (such as) text, notification message, program guidance information or menu information It is one or more.In some cases, digital TV converting units/emitter 42 can be received directly from multimedia processor 32 Data.In these cases, the data conversion that digital TV converting units/emitter 42 will can be received directly from multimedia processor And/or it is encapsulated into missile transportation flow.
In order that mobile multimedia communication device 30 can be via wireless network by one or more many matchmakers in flowing Volume data is broadcasted or is otherwise transmitted into remote-control device, after by the starting of mobile multimedia communication device 30, many matchmakers of movement Body communication device 30 recognizes one or more available channels in the unused portion of frequency spectrum at once.The energy of channel identifier 44 Enough recognize this one or more available channel.
Such as it is described in more detail below with reference to channel identification procedure, channel identifier 44 can be in one or more modes Identification available channel.For example, channel identifier 44 can be using spectral sensor (for example, in Fig. 5 or demonstrated in Figure 6 Spectral sensor), the spectral sensor can dynamically sense the available channel in one or more frequency bands.Frequency spectrum is passed Sensor may can assign some mass values (for example, interference level, signal to noise ratio) of the signal with regard to sensing, to determine frequency The quality of any available channel for data transmitting in spectrum.Sensing algorithm can be periodically carried out, and sensing algorithm can base In the form of the particular video stream being just subject to processing.
Channel identifier 44 it is also possible to use (coordinate with spectrum-sensing or independently) geographic positioning functionality.Geo-location is referred to Mobile multimedia communication device 30 can be comprising the geographic position sensors of GPS sensor (in one example) (for example, via utilization Geographic position sensors demonstrated in Figure 5) determine the ability of its geographical coordinate.Channel identifier 44 can inquire about external digital letter Track data storehouse (for example, digital TV frequency bands data base, such as digital TV frequency bands data base demonstrated in Figure 5) is with via channel radio Letter obtains the list of available channel.Generally, this external data base can safeguard by one or more external device (ED)s or source, but can Updated based on the request from various devices (for example, mobile multimedia communication device 30) and data flow.
In one example, channel identifier 44 can (for example) via network (for example, wireless network) connection will be with regard to movement The geographical position coordinates of the position of multimedia communication device 30 are sent to external digital channel database.Channel identifier 44 can connect From external data base to receive and be associated with the position (as by indicated by geographical position coordinates) of mobile multimedia communication device 30 Geographic area available channel list.Channel identifier 44 can then select one of identified channel or one with On for utilizing, and the data is activation that the expection with regard to mobile multimedia communication device 30 to these frequency channels is utilized is returned to External data base.Therefore, the data received from mobile multimedia communication device 30 can be accordingly based on and updates external data base.
In some cases, external data base just may indicate that selected channel is filled by mobile multimedia communication once being updated over 30 utilizations are put, until mobile multimedia communication device 30 will indicate no longer to need or not in the subsequent message using the channel Till being sent to external data base.In other cases, external data base only can be preserved for device within the time cycle defined 30 selected channel.In these cases, device 30 may be needed instruction device 30 within the time cycle defined still Just external data base is sent to using the message of selected channel, in said case, external data base will be in the second time cycle It is interior to recover to utilize the device 30 that is reserved for of selected channel.
In some instances, channel identifier 44 can be based on any clothes performed just on mobile multimedia communication device 30 The bandwidth requirement or demand of business or application program is (such as by one of (such as) multimedia processor 32 or one or more of in execution Period indicate) come select one of available channel or it is one or more of for utilize.For example, specific multimedia application The multiple broadcasting streams for each requiring with high bandwidth may be needed.In this case, channel identifier 44 can distribute multiple differences Available channel is used to transmitting adapt to the bandwidth requirement of this multiple broadcasting stream.
In some examples, channel identifier 44 can recognize one or more based on the information received from multiple sources Available channel.For example, if channel identifier 44 use both spectral sensor and geographic positioning functionality, when it is determined that When which channel can be used to utilize, channel identifier 44 may need to process both channel informations in these sources. Under certain situation, when one or more channels are selected, channel identifier 44 may need management to be carried by this multiple source For collision channels information.Fig. 9 of more detailed explanation of the following provides such as mobile multimedia communication device 30 in some instances Device can process channel information from multiple sources mode an example.
After one or more available transmission channels are identified by channel identifier 44, digital TV converting units/send out Emitter 42 at once can followed by the identified launch channel via network by content of multimedia or data broadcasting or with it Its mode is transmitted into external device (ED).Mobile multimedia communication device 30 can starting directly with the broadcast transmission of this external device (ED).
Fig. 5 is to illustrate that the digital TV converting units/emitter 42A that may be implemented in mobile multimedia communication device 30A connects The block diagram of one example of cochannel evaluator 44A.In Figure 5, digital TV converting units/emitter 42A can be demonstrated in Figure 4 Digital TV converting units/emitter 42 an example, and channel identifier 44A can be channel identifier demonstrated in Figure 4 44 example.In the example of fig. 5, mobile multimedia communication device 30A can be wide according to concrete digital broadcast formats ATSC Playing multimedia data.Mobile multimedia communication device 30A can promote to the ready external device (ED)s of ATSC (for example, fine definition or flat Plate TV) low power transmissions.In this case, ATSC ready devices can include multimedia output dress demonstrated in Figure 2 Put one of 14A-14N.
As demonstrated in Figure 5, digital TV converting units/emitter 42A may include various assemblies, for example, video and/or sound Frequency encoder 50A, conveying encoder/multiplexer 52A, FEC encoder 54A, ATSC manipulator 56A, radio frequency (RF) Duplexer/switch 58A and emitter 59A.These components help support that the data on the emission spectrum using ATSC standards are sent out Penetrate.ATSC standards are the multilamellar standard for providing the layer for Video coding, audio coding, transportation flow and modulation.In one example, RF duplexers/switch 58A can include hyperfrequency (UHF) duplexer/switch.Duplexer can allow for sensing purpose and receiving letter Number and for communication objective and transmission signal.
Video/audio encoder 50A may include one or more video encoders and one or more audio frequency Encoder is so that video and/or audio data coding to be flowed into one or more.For example, video/audio encoder 50A May include (MPEG-2) encoder of animation expert group 2 or H.264 encoder (from telecommunication standardization sector, ITU-T) with encode Video data.Video/audio encoder 50A may also include Doby (Dolby) numeral (Dolby AC-3) encoder with coded audio Data.ATSC streams can be containing one or more video programs and one or more audio programs.It is any utilized Video encoder can implement master ga(u)ge model or implement high specification for high definition resolution video for standard definition video.
(for example, MPEG-2 transportation flows, or TS) encoder/multiplexer 52A is from video/audio encoder 50A for conveying Encoded data stream is received, and these data flows can be combined for broadcast, for example, be combined into one or more bags The basic flow (packetized elementary stream, PES) of change.Can be then defeated to individual program by these PES bagizations In sending stream.In some instances, conveying encoder/multiplexer 52A can provide output transportation flow to error correction coding The executable mistake school of device 54A (for example, reed-solomon (Reed-Solomon) encoder), the FEC encoder 54A Positive encoding function.
ATSC manipulators 56A can modulate transportation flow for broadcast.In some cases, ATSC manipulators 56A can make Modulated for broadcast transmission with 8 rank vestigial sidebands (8VSB).RF duplexers/switch 58A then can carry out duplex to transportation flow, Or serve as switch for transportation flow.Emitter 59A can utilize one or more that recognized by channel identifier 44A can One or more transportation flows are broadcast to into one or more external device (ED)s with channel.
Channel identifier 44A includes database manager 62, channel selector 64A, optional Channel assignment user interface (UI) 66A and spectral sensor 70A.Both channel identifier 44A and numeral TV converting units/emitter 42A are coupled to can Memorizer 60A comprising one or more buffers.TV converting units/emitter 42A can with numeral for channel identifier 44A Information is directly exchanged, or also information can indirectly be exchanged by the storage of the information via memorizer 60A and retrieval.
Channel identifier 44A includes spectral sensor 70A.As discussed previously, the frequency spectrum of such as spectral sensor 70A is passed Sensor can be sensed in one or more frequency bands in for the broadcast spectrum of optional network specific digit TV forms (for example, ATSC) Signal.Spectral sensor 70A can be based on its identification and take any of the channel that one or more Jing in frequency spectrum are utilized The ability of broadcast data is determining channel availability and signal intensity.Spectral sensor 70A can then by with regard to currently not utilizing Or the information of available channel is provided to channel selector 64A.For example, if spectral sensor 70A be not detected by just by Any outside isolated system broadcasts any data on particular channel, then it is available that it can detect this channel.
As demonstrated in Figure 5, channel selector 64A can also be via network 72 and database manager 62 from digital TV frequency bands (geographical position) data base's receive information.Digital TV frequency bands data base 74 is located at outside mobile multimedia communication device 30A, and is wrapped Include with regard to the current in utilization or available of in for the broadcast spectrum of optional network specific digit TV forms (for example, in ATSC frequency spectrums) The information of channel.Generally, when utilizing or being freed for other devices to utilize channel input, digital TV frequency bands are dynamicallyd update Data base 74.In some instances, digital TV frequency bands data base 74 can by geographical position/region or by frequency band (for example, low VHF, High VHF, UHF) tissue.
In order that channel identifier 44A obtains channel availability information from digital TV frequency bands data base 74, in certain situation Under, channel identifier 44A can be provided as input into geographical location information in digital TV frequency bands data base 74.Channel identifier 44A can obtain geographical location information or coordinate from geographic position sensors 73, and geographical location information or coordinate may indicate that movement is more Medium communication device 30A is in the geographical position of particular point in time.In some instances, geographic position sensors 73 can include GPS Sensor.
After geographical location information is received from geographic position sensors 73, channel selector 64A at once can be via data This information is provided as input into digital TV frequency bands data base 74 by librarian 62.Database manager 62 can provide numeral The interface of TV frequency bands data base 74.In some cases, when the chosen content of digital TV frequency bands data base 74 is retrieved, data Librarian 62 can store its local copy.Additionally, database manager 62 can be stored being provided to numeral by channel selector 64A The selection information (for example, geographical location information) of TV frequency bands data base 74.
After it have sent the geographical location information relevant with mobile multimedia communication device 30A, channel selector 64A is at once Can receive from digital TV frequency bands data base 74 and one or more that list are presented in the digital TV frequency bands data base 74 can use The group of channel.The available channel group can be in the geographic area or position taken at present by mobile multimedia communication device 30A Available those channels in (such as being indicated by geographic position sensors 73).
Available channel letter is being received from any one of spectral sensor 70A and numeral TV frequency bands data base 74 or both After breath, channel selector 64A at once can automatically or via select via the user input of Channel assignment UI 66A one or More than one available channel.Channel assignment UI can be presented available channel in graphical user interface, and service or application program User may be selected one of these available channels or one or more of.
In some instances, channel selector 64A can be automatically selected or be recognized to be ready to use in and be filled by mobile multimedia communication Put one of available channel of broadcast transmission that 30A is carried out or one or more of.For example, channel selector 64A can be used By the information of one of multimedia processor 32 (Fig. 4) or one or more of offer determine any one in identification available channel or It is one or more of for broadcast transmission.In some cases, channel selector 64A can be based on the service or application program for just performing Require or demand is selecting multiple channels.Can be by with these services or one or more transportation flows for being associated of application programs Emitter 59A one of identified channel or it is one or more of on broadcast.
Fig. 6 is to illustrate that the digital TV converting units/emitter 42B that may be implemented in mobile multimedia communication device 30B connects The block diagram of another example of cochannel evaluator 44B.In figure 6, digital TV converting units/emitter 42B can be institute's exhibition in Fig. 4 One example of the digital TV converting units/emitter 42 for showing, and channel identifier 44B can be channel knowledge demonstrated in Figure 4 One example of other device 44.Digital TV converting units/emitter 42B and channel identifier 44B can respectively since storage arrangement 60B Storage and retrieval information.Similar to digital TV converting units/emitter 42A, digital TV converting units/emitter 42B includes one Individual or more than one video/audio encoder 50B, a conveying encoder/multiplexer 52B, a FEC encoder 54B, an ATSC manipulator 56B, a RF duplexers/switch 58B and emitter 59B.
The difference of the channel identifier 44A of channel identifier 44B and Fig. 5 of Fig. 6 is that channel identifier 44B is not Including the database manager for being interfaced to digital TV frequency bands data base.In figure 6, channel identifier 44B is only sensed including frequency spectrum Device 70B.Because geographic positioning functionality is not carried out in the example of Fig. 6, mobile multimedia communication device 30B does not include geography Position sensor.Channel selector 64B recognizes one or more available letters based on the input received from spectral sensor 70B Road is for broadcast transmission.Channel selector 64B can also be via Channel assignment UI 66B receive users to from available channel The selection of one channel of list.Can be based on the signal message for being sensed provided by spectral sensor 70B in Channel assignment UI The list of available channel is presented on 66B.
Fig. 7 is the block diagram of the example for illustrating multiple multimedia communication devices, and one of multimedia communication device serves as The master device 82 of digital TV frequency bands (geographical position) data base 80 is coupled to, and wherein remaining multimedia communication device serves as client End device (for example, client terminal device 88 and 94).In some cases, master device 82, client terminal device 88 and client terminal device 94 can each self-contained multimedia communication device (for example, multimedia communication device 4 (Fig. 2)), the multimedia communication device energy By multimedia data broadcast to remote multi-media output device enough in one or more broadcasting streams.However, following article institute Explain, master device 82 can control the ability that client terminal device 88 and 94 performs these broadcast transmissions.
In the example of figure 7, client terminal device 88 and client terminal device 94 can be operated under each comfortable client mode, wherein The transmitting of client terminal device 88 and 94 can be under the control of master device 82 together with the frequency channels of operation.Generally, client terminal device 88 and 94 not initial network to start broadcast transmission, until its receive from master device 82 enable or control signal till.
Master device 82 can be operated under holotype, and wherein master device 82 has and send out in the case of signal not receiving to enable The ability penetrated.Master device 82 itself can select a channel, and be sent to client dress by enabling signal or control signal Put 88 and 94 and initial network.
As shown in fig. 7, master device 82 is coupled to digital TV frequency bands (geographical position) data base 80.Master device 82 may Its digital TV channel identifier 86 can be utilized to recognize that one or more of broadcast transmission for multi-medium data can use Channel.Multi-medium data can be converted into digital broadcast formats and (for example, encode many matchmakers by digital TV converting units/emitter 84 Volume data, modulate this data) and that the data are transmitted into into one or more in one or more data flows is more Media output device.Master device 82 may include geographic position sensors, and numeral TV channel identifiers 86 can be based on by digital TV The channel information identification available channel that frequency band data base 80 provides.In some instances, when available channel is recognized, digital TV letters Road evaluator 86 it is also possible to use the signal message from spectral sensor.(in an alternate example, when using multiple master devices When, a master device can perform geographic positioning functionality, and another master device performs spectrum-sensing function.)
Client terminal device 88 includes numeral TV converting units/emitter 90 and numeral TV channel identifiers 92.Equally, visitor Family end device 94 includes numeral TV converting units/emitter 96 and numeral TV channel identifiers 98.In the example of figure 7, visitor Family end device 88 and 94 is not coupled to digital TV frequency bands data base 80, and may not include geographic position sensors.Client terminal device 88 and 94 may include the spectral sensor for sensing available broadcast channel.However, in starting to one or more many matchmakers Before any broadcast transmission of body output device, client terminal device 88 and 94 may be enabled or controlled firstly the need of from master device 82 Signal processed.
Additionally, in some cases, master device 82 can provide client terminal device 88 and 94 to client terminal device 88 and 94 can The list of the identified available channel determined by digital TV channel identifiers 86 for utilizing.Client terminal device 88 and 94 can Jing match somebody with somebody Put with initial broadcast transmission using the channel recognized by master device 82.In these cases, master device 82 and client Device 88 and 94 can be located in relatively close or similar geographic location area.
If client terminal device 88 and/or 94 includes the spectrum-sensing function of their own, it is used to broadcast many matchmakers in identification During the available channel of body transmitting, these devices can use the channel information provided by master device 82, may be together with by their own The signal message that spectral sensor is provided.In some instances, master device 82 is executable with client terminal device 88 and/or 94 consults Which available channel selected when from client terminal device 88 and/or 94 broadcast data to determine for operation.
For example, client terminal device 88 and/or 94 executable service or application with some bandwidth requirements or demand Program, and can with master device 82 consult with determine for these service or application program and from client terminal device 88 and/or 94 Which available channel may be most suitable for utilizing during broadcast data.
Fig. 8 is the flow chart of an example of the method that illustrates, methods described can be by communicator (for example, in Fig. 1 to Fig. 4 One of communicator for being shown is one or more of) perform with the identified of frequency spectrum (for example, digital TV broadcasting frequency spectrum) Channel on broadcasted media data.In the following description of Fig. 8, exclusively for the purposes of illustration, it will be assumed that, the method for Fig. 8 can be by Mobile multimedia communication device 30 demonstrated in Figure 4 is performed.
Device 30 can convert the data into digital broadcast formats (100) (for example, using converting unit, for example, Fig. 4's The converting unit that digital TV converting units/emitter 42 includes).The communicator can include many with multimedia capabilities Medium communication device, and data can include in voice data, video data, text data, speech data and graph data The multi-medium data of at least one.In some instances, digital broadcast formats can be ATSC forms, (ground digital is more for T-DMB Media broadcast) form or DVB (DVB) form, but it is also possible to use various other number formats.Work as convert multimedia During data, device 30 can using one or more videos and/or audio coder (for example, video demonstrated in Figure 5/ Audio coder 50A or video/audio encoder 50B demonstrated in Figure 6) and/or multiplexer, company is same or one With modulator/duplexer/switch.Convert multimedia data may include coded multimedia data to observe digital broadcast formats, And the multi-medium data of modulation warp knit code.
If multi-medium data includes video or graph data, device 30 can over the display (for example, embedded aobvious Show on device 38 (Fig. 4) or the display outside device 30) show video or graph data.If multi-medium data includes audio frequency number According to then voice data can be provided and arrive one or more speakers by device 30, such as, there is provided to embedded speaker 40 (Fig. 4) speaker or outside device 30.
Device 30 can recognize that frequency spectrum at least one available channel (104) (for example, using channel identifier, for example, Fig. 4 Channel identifier 44).In some cases, this identification can be by device starting.For example, device 30 can be sensed using frequency spectrum Device (for example, the spectral sensor 70B of the spectral sensor 70A or Fig. 6 of Fig. 5) and/or from digital TV frequency bands data base (for example, The digital TV frequency bands data base 74 of Fig. 5) access information recognize at least one available channel.In some cases, device 30 can At least one of the unused portion of identification broadcast spectrum (for example, broadcast television spectrum) available channel.In some cases, At least one available channel can include television band white space.Only lift several non-limiting examples, digital broadcast formats ATSC (Advanced Television Systems Committee) form, T-DMB (T-DMB) form, DVB (digital videos can be included Broadcast) form or animation expert group transportation flow (MPEG-TS) form.
In some instances, (for example, accounted for by licensed user if at least one available channel becomes occupied With), then device 30 can be recognized using channel identifier and can use for the subsequent transmission of data and/or at least one other of broadcast Channel.In some cases, the exploitable channel evaluator of device 30 is periodically determined described at least one in a period of time Individual available channel is still available or has become occupied.In some cases, when carrying out this and determining, device 30 is available Spectral sensor and/or accessing geographic position data base.
In an example, device 30 may include geographic position sensors (for example, the geographic position sensors 73 of Fig. 5) with The geographical coordinate of determining device 30.Geographical coordinate then can be provided as input into digital TV frequency bands data base by device 30.
When device 30 use spectral sensor when, device 30 can assign with sensed by the spectral sensor or One or more associated mass values of more than one channel.Mass value can based on noise level, interference (for example, from Extraneous signal or without permission/unauthorized user) or other factorses.For example, device 30 can use spectral sensor Some mass values of the channel of each respective sense in the frequency range that defines of acquisition or frequency band, for example, can be with the channel Associated interference level or signal to noise ratio.Device 30 can use the metamessage provided by these mass values to assess the matter of each channel Amount (for example, low quality, mean quality, high-quality).For example, if the mass value of available channel indicates that the channel will have There is the high s/n ratio with a small amount of interference, then device 30 can determine that the channel can be high-quality channel.On the other hand, if institute The mass value for stating available channel indicates that the channel will be with low signal-to-noise ratio or with a large amount of interference, then device 30 can determine that channel It can be low-quality channel.
Device 30 can make one or more mass values with the available channel information provided by digital TV frequency bands data base Correlation, to recognize at least one available channel, for example, is shown in the example of Fig. 9.For example, under a kind of scene, Correlation may include to indicate that channel can use and in the matter being associated with channel in the channel information provided by digital TV frequency bands data base One of value determines that the channel can use when exceeding a certain quality threshold.
After device 30 has identified at least one available channel, device 30 can be identified available described at least one Transmitting in channel (for example, via Fig. 5 emitter 59A or Fig. 6 emitter 59B) converted data (for example, are transmitted into one Individual or more than one single external device (ED)) (106).For example, after the request of device 30, device 30 at once can be initial right The broadcast transmission of one or more external multimedia output devices (for example, television equipment).In one example, device 30 can Comprising master device (for example, the master device 82 of Fig. 7).In this example, device 30 can be by the letter of at least one available channel of identification Breath is sent to one or more single client terminal devices (for example, client terminal device 88 of Fig. 7 and/or 94).
Fig. 9 is the flow chart of an example of the method that illustrates, methods described can (for example, Fig. 1 be extremely by multimedia communication device One of multimedia communication device demonstrated in Figure 4 is one or more of) perform to recognize available channel.In certain situation Under, the available letter of information identification that described device can utilize spectral sensor and receive from digital TV frequency bands (geographical position) data base Road.In some cases, device can recognize available channel merely with spectral sensor.In the following description of Fig. 9, only for saying Bright purpose, it will be assumed that, method demonstrated in Figure 9 is performed by mobile multimedia communication device 30 demonstrated in Figure 4.
In some cases, mobile multimedia communication device 30 can be from geographic position data storehouse (for example, in the example of Fig. 5 Digital TV frequency bands (geographical position) data base 74 for being shown) receive particular channel channel information (120).The channel can be wrapped Containing the channel in the frequency band for the broadcast spectrum of digital TV format (for example, ATSC).Mobile multimedia communication device 30 can make The geographical location information of device 30 is carried as input with geographic position sensors (for example, the geographic position sensors 73 of Fig. 5) It is supplied to geographic position data storehouse so that geographic position data storehouse is provided back to the channel information of channel based on the position of device 30 Device 30.However, (for example, shown in the example in fig .6) in certain embodiments, when not utilizing or accessing geographic position number During according to storehouse, device 30 can not receive any channel information from geographic position data storehouse.
Device 30 further can receive same from spectral sensor (for example, from spectral sensor 70A demonstrated in Figure 5) The signal message (122) of channel.In this example, device 30 receives channel from both geographic position data storehouse and spectral sensor Channel information.
In the case of device 30 communicates with geographic position data storehouse, device 30 can first determine that by the geographical position Whether the channel information for putting data base's offer indicates the channel unavailable (126).For example, geographic position data storehouse can refer to Show that the channel is current just to be utilized by another authorized service provider or user.In this case, device 30 can determine that Search and using another channel (124) that can be used for broadcast transmission, but regardless of the spectral sensor indicates that the channel can use Or it is unavailable.
However, if geographic position data storehouse indicates that the channel can use, device 30 can be then determined by frequency spectrum sensing Whether the channel information that device is provided indicates that the channel may be occupied or with low-quality level (128).In some cases, Newest geographic position data storehouse may not be improved, in said case, even if geographic position data storehouse is indicated otherwise, channel is still May be occupied.If spectral sensor indicates that the channel may be occupied, device 30 can determine that ignore the channel and Search available another channel (124).
If spectral sensor recognizes available channel, but determines that mass value is indicated or according to unit based on one or more Information determines that the channel can be available but will have low-quality level (for example, high noise level, disturb in a large number), then device 30 can determine that and ignore the channel and search another available channel (124) for broadcast transmission.Mass value can be based on noise electricity Flat, interference (for example, from extraneous signal or without permission/unauthorized user) or other factorses.Mass value can be based on one Individual or more than one tolerance, for example, signal to noise ratio, signal-to-interference ratio, the noise-floor for measuring or other tolerance.(when dress Put 30 communicate with geographic position data storehouse in the case of, when search another available channel when, device 30 can again from geography Location database receiving channel information.In other cases, device 30 can be only from spectral sensor receiving channel information searching Another available channel.)
If however, spectral sensor indicate the channel can for it is available and also have it is medium to high-quality level (by Mass value is indicated), then device 30 can then select the channel to be used for the broadcast transmission (130) of multi-medium data.In some feelings Under condition, when the determination of device 30 channel can have only intermediate level of quality (for example, based on the mass value for processing), device 30 is optional The channel is selected for utilizing, but due to medium (and not high) credit rating of the channel, can be increased for using the letter The transmission power of the broadcast communication in road.
In some instances, device 30 can be relied only on and believed with regard to one or more by what geographic position data storehouse provided The information of the availability in road.In these examples, even if device 30 includes spectral sensor, device 30 can still disable the frequency spectrum Sensor ignores the channel information provided by the sensor, and is based only upon the information selection provided by geographic position data storehouse Available channel.
In some instances, in one or more services or the term of execution of application program, communicator is (for example, Device 30) method demonstrated in Figure 9 can be performed a plurality of times to recognize multiple available channels of the broadcast that can be used for multi-medium data. For example, application-specific can have high bandwidth requirement, but can need using multiple launch channels.Device 30 can perform Method once or more demonstrated in Figure 9 with recognize can by the application program utilize with by multimedia data broadcast to Multiple available transmission channels of external device (ED) (for example, TV).
Technology described in the present invention may be implemented in general purpose microprocessor, digital signal processor (DSP), special integrated In circuit (ASIC), field programmable gate array (FPGA), programmable logic device (PLD) or other equivalent logic devices one Person is one or more of interior.Therefore, in may refer to aforementioned structure such as herein the term " processor " for utilizing or " controller " Any one is one or more of, or is adapted for carrying out any other structure of technology described herein.
Various assemblies illustrated here can be come by hardware, software, any appropriate combination of firmware or its any combinations Realize.In the drawings, various assemblies are depicted as into single unit or module.However, referring to various groups of these figure descriptions All or some components in part can be integrated in combined unit or the module in usual hardware, firmware and/or software.Cause This, for ease of explanation, character representation is intended to emphasize specific functional features for component, unit or module, and is not necessarily required to lead to Cross single hardware, firmware or component software to realize these features.In some cases, can be embodied as various units can be by The programmable process of one or more computing devices.
Can be implemented together in integration logic device here depicted as any feature of module, device or component or independent Be embodied as logic device that is discrete but can co-operating.In various aspects, these components can be at least partially formed as one Individual or more than one IC apparatus, one or more than one IC apparatus can be collectively referenced as integrated circuit dress Put, for example, IC chip or chipset.This circuit may be provided in single IC for both chip apparatus or it is multiple can be common In the integrated circuit chip device of operation, and can be used for various images, display, audio frequency or other multiple multicast application programs and In any one of device.In certain aspects, for example, these components can form for example that wireless communication device handsets are (for example, Mobile phone hand-held set) mobile device a part.
If implemented with software, the technology can at least in part by can comprising the computer of code with instruction Read data storage medium to realize, when by one or more computing devices, the instruction is performed in said method It is one or more.Computer-readable storage medium can form a part for computer program, computer program May include encapsulating material.Computer-readable media can include depositing at random for such as Synchronous Dynamic Random Access Memory (SDRAM) Access to memory (RAM), read only memory (ROM), nonvolatile RAM (NVRAM), electrically erasable are only Read memorizer (EEPROM), embedded type dynamic random access memory (eDRAM), static RAM (SRAM), fast Flash memory, magnetical or optical data storage medium.Any software for being used can be by one or more processor (examples Such as, one or more DSP, general purpose microprocessor, ASIC, FPGA or other equivalent integrated or discrete logics) perform.
Various aspects are had been described in the present invention.These and other aspect is in the category of appended claims.

Claims (47)

1. a kind of method for launching data, it is included：
Convert the data into digital broadcast formats；
At least one available channel of identification frequency spectrum；
Launch converted data in described at least one identified available channel；
Wherein recognize that at least one available channel is included and at least one available channel recognized using spectral sensor,
Wherein recognize at least one available channel further comprising access DTV (TV) frequency band data base to recognize State at least one available channel；And
Methods described wherein accesses the digital TV frequency bands data base bag further comprising the geographical coordinate of determination communicator The digital TV frequency bands data base is provided as input into containing by the geographical coordinate.
2. method according to claim 1, recognizes radio and television frequently wherein recognizing that at least one available channel is included At least one available channel in the unused portion of spectrum.
3. method according to claim 1, wherein recognizing that at least one available channel is empty comprising identification television band White space.
4. method according to claim 1, wherein the digital broadcast formats include ATSC (ATSC committee members Meeting) form, T-DMB (T-DMB) form, DVB (DVB) form, Terrestrial Integrated Services numeral Broadcast (ISDB-T) form or animation expert group transportation flow (MPEG-TS) form.
5. method according to claim 1, wherein by communicator starting identification at least one available channel.
6. method according to claim 5, wherein：
The communicator includes the multimedia communication device with multimedia capabilities；And
The packet contains and includes at least one of voice data, video data, text data, speech data and graph data Multi-medium data.
7. method according to claim 6, wherein：
The multi-medium data is changed comprising the coding multi-medium data to observe the digital broadcast formats, and described in modulation The multi-medium data of warp knit code；And
Launch the converted data to be included in the converted number in described at least one identified available channel One or more external device (ED)s are transmitted into according to from the multimedia communication device.
8. method according to claim 6, wherein when the multi-medium data is comprising video or graph data, the side Method is further contained on the display of the multimedia communication device and shows the video or graph data.
9. method according to claim 6, wherein when the multi-medium data includes voice data, methods described enters Step is included and the voice data is provided to one or more speakers.
10. method according to claim 1, wherein recognizing at least one available channel comprising utilizing spectral sensor To recognize at least one available channel.
11. methods according to claim 1, it is further comprising for assigning and being sensed by the spectral sensor Or one or more mass values that more than one channel is associated.
12. methods according to claim 11, wherein recognize at least one available channel comprising make it is one or More than one mass value is related to the available channel information provided by the digital TV frequency bands data base, so as to described in recognizing at least One available channel.
13. methods according to claim 12, wherein correlation is included in the institute provided by the digital TV frequency bands data base State channel information and indicate that channel can use and when one of described mass value being associated with the channel exceedes quality threshold Determine that the channel can use.
14. methods according to claim 1, it is further contained at least one available channel becomes by another use Family recognizes at least one other available channel in the case of taking.
15. methods according to claim 14, it further includes and periodically determines at least one available channel It is still available or has become by another CU.
A kind of 16. computer-readable storage mediums, it is included for making one or more processors carry out following operation Instruction：
Convert the data into digital broadcast formats；
At least one available channel of identification frequency spectrum；And
Launch converted data in described at least one identified available channel；
Wherein to recognize the instruction of at least one available channel include to recognized using spectral sensor it is described extremely The instruction of a few available channel；
Wherein further include to access DTV (TV) frequency band to recognize the instruction of at least one available channel Data base is recognizing the instruction of at least one available channel；
The computer-readable storage medium is further included to determine the instruction of the geographical coordinate of communicator, and is wherein used Included the geographical coordinate is provided as input into into the numeral with the instruction for accessing the digital TV frequency bands data base The instruction of TV frequency band data bases.
17. computer-readable storage mediums according to claim 16, wherein described to recognize that described at least one can With the instruction of channel comprising the finger at least one available channel in the unused portion for recognizing broadcast television spectrum Order.
18. computer-readable storage mediums according to claim 16, wherein described to recognize that described at least one can The instruction to recognize television band white space is included with the instruction of channel.
19. computer-readable storage mediums according to claim 16, wherein at least one available channel is described Identification is by communicator starting.
20. computer-readable storage mediums according to claim 16, wherein described to recognize that described at least one can With the instruction of channel comprising the instruction to recognize at least one available channel using spectral sensor.
21. computer-readable storage mediums according to claim 16, it is further included to described at least one Available channel becomes the instruction that at least one other available channel is recognized in the case of by another CU.
22. computer-readable storage mediums according to claim 21, it is further included periodically to determine institute Stating at least one available channel is still available or has become by the instruction of another CU.
A kind of 23. communicators, it is included：
Converting unit, it is configured to convert the data into digital broadcast formats；
Channel identifier, it is configured to recognize at least one available channel of frequency spectrum；And
Digit emitter, it is configured to launch converted data in described at least one identified available channel；
Spectral sensor is further included, wherein the channel identifier is configured to using the spectral sensor to recognize State at least one available channel；
Wherein described channel identifier be configured at least through access DTV (TV) frequency band data base with recognize it is described extremely Lack an available channel to recognize at least one available channel；
The communicator further includes geographic position sensors, and it is configured to determine the geographical seat of the communicator Mark, and wherein described channel identifier is configured to be provided as input into the digital TV at least through by the geographical coordinate Frequency band data base is accessing the digital TV frequency bands data base.
24. communicators according to claim 23, wherein the channel identifier is configured to recognize radio and television frequency At least one available channel in the unused portion of spectrum.
25. communicators according to claim 23, wherein the channel identifier is configured to recognize TV frequency At least one available channel is recognized with white space.
26. communicators according to claim 23, wherein the digital broadcast formats include ATSC (ATSCs Committee) form, T-DMB (T-DMB) form, DVB (DVB) form, Terrestrial Integrated Services Digital broadcasting (ISDB-T) form or animation expert group transportation flow (MPEG-TS) form.
27. communicators according to claim 23, wherein the channel identifier is configured to be filled by the communication Put and recognize at once after starting at least one available channel.
28. communicators according to claim 23, wherein：
The communicator includes the multimedia communication device with multimedia capabilities；And
The packet contains and includes at least one of voice data, video data, text data, speech data and graph data Multi-medium data.
29. communicators according to claim 28, wherein：
The converting unit is more comprising the numeral for being configured to encode the multi-medium data to observe the digital broadcast formats Media encoders, and the converting unit is further more comprising the numeral for being configured to modulate the multi-medium data of the warp knit code Media manipulator；And
The digit emitter is configured to turn the Jing at least through in described at least one identified available channel The data changed are transmitted into one or more external device (ED)s to launch the converted number from the multimedia communication device According to.
30. communicators according to claim 28, wherein when the multi-medium data is comprising video or graph data, The multimedia communication device further includes the display device to show the video or graph data.
31. communicators according to claim 28, wherein when the multi-medium data includes voice data, it is described many Medium communication device further includes one or more speakers to export the voice data.
32. communicators according to claim 23, further comprising spectral sensor, wherein the channel identifier Jing Configure to recognize at least one available channel using the spectral sensor.
33. communicators according to claim 23, wherein the channel identifier be further configured to assign with by One or more mass values that one or more channels that the spectral sensor is sensed are associated.
34. communicators according to claim 33, wherein the channel identifier is configured so that one or one Individual above mass value is related to the available channel information provided by the digital TV frequency bands data base, to recognize described at least one Individual available channel.
35. communicators according to claim 34, wherein the channel identifier is configured to by the digital TV The channel information that frequency band data base provides indicates that channel can use and in the mass value being associated with the channel One determines that the channel can use when exceeding quality threshold.
36. communicators according to claim 23, wherein the channel identifier be further configured to it is described extremely A few available channel becomes to recognize at least one other available channel in the case of by another CU.
37. communicators according to claim 36, wherein the channel identifier is further configured to periodically Determine that at least one available channel is still available or has become by another CU.
38. communicators according to claim 23, wherein the communicator includes master device, and wherein described numeral Emitter is further configured to be sent to the information for recognizing at least one available channel different from the master device Device.
39. communicators according to claim 23, wherein the communicator includes wireless communication device handsets.
40. communicators according to claim 23, wherein the communicator includes one or more integrated electricity Road device.
A kind of 41. communicators, it is included：
For converting the data into the device of digital broadcast formats；
For recognizing the device of at least one available channel of frequency spectrum；And
For launching the device of the converted data in described at least one identified available channel；
The wherein described device for recognizing at least one available channel is included for utilizing spectral sensor to recognize State the device of at least one available channel；
Wherein it is used to recognize the device of at least one available channel further comprising for accessing DTV (TV) frequency band Data base is recognizing the device of at least one available channel；
The communicator further includes the device for determining the geographical coordinate of the multimedia communication device, and wherein institute The device for accessing the digital TV frequency bands data base is stated comprising described for the geographical coordinate to be provided as input into The device of digital TV frequency bands data base.
42. communicators according to claim 41, wherein the dress for recognizing at least one available channel Put comprising the device at least one available channel in the unused portion for recognizing broadcast television spectrum.
43. communicators according to claim 41, wherein the dress for recognizing at least one available channel Put the device included for recognizing television band white space.
44. communicators according to claim 41, wherein the dress for recognizing at least one available channel Put comprising in the device for being recognized at least one available channel after initial at once by the communicator.
45. communicators according to claim 41, wherein the dress for recognizing at least one available channel Put comprising for using the device of spectral sensor identification at least one available channel.
46. communicators according to claim 41, it is further comprising at least one available channel change The device of at least one other available channel is recognized in the case of obtaining by another CU.
47. communicators according to claim 46, it is further included for periodically determining described at least one Available channel is still available or has become by the device of another CU.
CN201610663213.1A 2009-07-02 2010-02-03 Local broadcast of data using available channels of a spectrum Pending CN106603180A (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US22284509P 2009-07-02 2009-07-02
US61/222,845 2009-07-02
US23060209P 2009-07-31 2009-07-31
US61/230,602 2009-07-31
US12/547,834 2009-08-26
US12/547,834 US8374134B2 (en) 2009-01-30 2009-08-26 Local broadcast of data using available channels of a spectrum
CN2010800060746A CN102301624A (en) 2009-07-02 2010-02-03 Local broadcast of data using available channels of a spectrum

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN2010800060746A Division CN102301624A (en) 2009-07-02 2010-02-03 Local broadcast of data using available channels of a spectrum

Publications (1)

Publication Number Publication Date
CN106603180A true CN106603180A (en) 2017-04-26

Family

ID=45025473

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201610663213.1A Pending CN106603180A (en) 2009-07-02 2010-02-03 Local broadcast of data using available channels of a spectrum
CN2010800060746A Pending CN102301624A (en) 2009-07-02 2010-02-03 Local broadcast of data using available channels of a spectrum

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN2010800060746A Pending CN102301624A (en) 2009-07-02 2010-02-03 Local broadcast of data using available channels of a spectrum

Country Status (3)

Country Link
KR (1) KR101334440B1 (en)
CN (2) CN106603180A (en)
TW (1) TWI475832B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040203814A1 (en) * 2002-03-06 2004-10-14 Ho Lester Tse Wee Method of allocating channels to base stations in a telecommunications network, and a telecommunications network
CN1830166A (en) * 2003-06-02 2006-09-06 高通股份有限公司 Base station-centric method for managing bandwidth and QOS in error-prone system
CN101064861A (en) * 2006-04-28 2007-10-31 株式会社东芝 Cognitive radio system
CN101212229A (en) * 2006-12-28 2008-07-02 摩托罗拉公司 Automatic optional tuning options for providing media channel
WO2008155598A1 (en) * 2007-06-20 2008-12-24 Nokia Corporation Method and device for transmission of media data to broadcast receivers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003529964A (en) * 1999-08-27 2003-10-07 ノキア コーポレイション Mobile multimedia terminal for DVB-1 and large and small cell communication
CN1946159A (en) * 2005-10-09 2007-04-11 乐金电子（沈阳）有限公司 Digital broadcast transmission mode changing system and its method
US8448212B2 (en) * 2005-12-02 2013-05-21 Nokia Corporation Combined receiver for DVB-H and DVB-T transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040203814A1 (en) * 2002-03-06 2004-10-14 Ho Lester Tse Wee Method of allocating channels to base stations in a telecommunications network, and a telecommunications network
CN1830166A (en) * 2003-06-02 2006-09-06 高通股份有限公司 Base station-centric method for managing bandwidth and QOS in error-prone system
CN101064861A (en) * 2006-04-28 2007-10-31 株式会社东芝 Cognitive radio system
CN101212229A (en) * 2006-12-28 2008-07-02 摩托罗拉公司 Automatic optional tuning options for providing media channel
WO2008155598A1 (en) * 2007-06-20 2008-12-24 Nokia Corporation Method and device for transmission of media data to broadcast receivers

Also Published As

Publication number Publication date
CN102301624A (en) 2011-12-28
TWI475832B (en) 2015-03-01
TW201129005A (en) 2011-08-16
KR20110135927A (en) 2011-12-20
KR101334440B1 (en) 2013-11-29

Similar Documents

Publication Publication Date Title
US8374134B2 (en) Local broadcast of data using available channels of a spectrum
TWI437842B (en) Method and apparatus of wireless transmission of data using an available channel of a spectrum
US8468568B2 (en) Transmission of video signals
US8584173B2 (en) Automatic selection of video programming channel based on scheduling information
US9521463B2 (en) Method and system of using idle receiving unit resources for receiving content and communicating the content to other receiving units in the network
US9635412B2 (en) System and method for providing a callback proxy for a set top box of with support of ISM-band wide area network access
JP2019532560A (en) Fingerprint layout for content fingerprinting
TW201145984A (en) Apparatus and methods for storing packetized video content
US20140101688A1 (en) Watching program information collecting method and system
JP6630570B2 (en) Receiving device and receiving method
JP5514839B2 (en) Local broadcast of data using available channels of spectrum
KR100713406B1 (en) How to provide electronic program guide using icons in digital multimedia broadcasting system
US20140229993A1 (en) Display apparatus, server and control method thereof
CN106603180A (en) Local broadcast of data using available channels of a spectrum
US20220094992A1 (en) Atsc 3.0 hospitality tv system
Lim et al. Hybrid interactive data service architecture over T-DMB with mobile network
US11611790B2 (en) RF channel description for multiple frequency networks
US20240236410A9 (en) Digital broadcast receiving apparatus
US11546671B2 (en) Providing promotion channel
WO2022269988A1 (en) Transmission device, transmission method, and reception device
You et al. Integrated mobile terrestrial digital multimedia broadcasting player compliant with the T-DMB, CMMB, and ISDB-T standards
Noland ATSC 3.0 Standards Usher in Next Gen TV Era
KR101944065B1 (en) System and method of providing broadcasting table
KR100871159B1 (en) Broadcast receiver and method for providing content image
KR20110105092A (en) Apparatus and method for providing service access information in a mobile broadcasting system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170426

RJ01 Rejection of invention patent application after publication