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GB2410160A - Base station for transmitting audio visual signal to a mobile device in a home network - Google Patents

Base station for transmitting audio visual signal to a mobile device in a home network Download PDF

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Publication number
GB2410160A
GB2410160A GB0400815A GB0400815A GB2410160A GB 2410160 A GB2410160 A GB 2410160A GB 0400815 A GB0400815 A GB 0400815A GB 0400815 A GB0400815 A GB 0400815A GB 2410160 A GB2410160 A GB 2410160A
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GB
United Kingdom
Prior art keywords
data
audio
signal
mobile
visual
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.)
Withdrawn
Application number
GB0400815A
Other versions
GB0400815D0 (en
Inventor
Jason Andrew Rees
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to GB0400815A priority Critical patent/GB2410160A/en
Publication of GB0400815D0 publication Critical patent/GB0400815D0/en
Priority to PCT/GB2005/000096 priority patent/WO2005069618A1/en
Publication of GB2410160A publication Critical patent/GB2410160A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • H04N21/41265—The peripheral being portable, e.g. PDAs or mobile phones having a remote control device for bidirectional communication between the remote control device and client device
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42661—Internal components of the client ; Characteristics thereof for reading from or writing on a magnetic storage medium, e.g. hard disk drive
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/4425—Monitoring of client processing errors or hardware failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/106—Adaptations for transmission by electrical cable for domestic distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A base station 52 receives a television signal through an aerial 16. TV programs may be recorded in flash memory 46 or on hard disk (76, Fig. 4). The base station forwards live TV or stored audio-visual information to a mobile device such as a mobile phone or PDA, which may be used to display the information. The base station may perform this data transfer using a Bluetooth (RTM) transmitter 66, an infra-red transmitter, or using a wireline connection such as USB. The base station has encoders 20, 22 for encoding the audio and visual data before transmitting it to the mobile device. The encoding may include compression. The mobile device may perform error detection or error correction on the received data. The mobile device be provided with means of controlling the base station.

Description

Audio-visual data system for a mobile data processing device and mobile
television apparatus The invention relates to an audio-visual data system for a mobile data processing device having integrated personal area networking means and to mobile television s apparatus incorporating the audio-visual data system.
In this specification a mobile data processing device is to be understood to mean any of a mobile telephone, a mobile smartphone, a personal digital assistant (PDA), a pocket personal computer (PC), a handheld PC, a hiptop PC and an instant messenger.
In addition to being used to make and receive telephone calls and to send and receive to SMS text messages, mobile telephones and mobile smartphones are often provided with games. The games are limited in their complexity by the memory capacity of the mobile telephone or smartphone. Mobile telephones, mobile smartphones, PDAs, pocket PCs, handheld PCs and hiptop PCs are generally provided with internet access, enabling a user to access internet web sites, from where short audio recordings or short video clips may be downloaded. The internet connection may also be used to send and receive emails. In the case of mobile telephones and mobile smartphones internet access is obtained via the mobile telephony signal, so the length and quality of audio or video recording which may be downloaded is limited by the bandwidth of the mobile telephony signal. In addition, the user must pay, often at a premium rate, to access the go internet and download data, and the mobile telephone or smartphone is unable make or receive calls during this time.
PDAs, pocket PCs, handheld PCs and hiptop PCs are generally provided with internet access via a computer, connected to a telephone landline or a cable modem, or directly through a mobile telephone. These devices can therefore only download audio or video recording when connected to a computer or mobile telephone According to a first aspect of the invention there is provided an audio-visual data system for a mobile data processing device having integrated personal area networking means, the system comprising: an audio-visual data signal source operable to generate an audio-visual data so signal; c e e a e. transmitter means operable to transmit the audio-visual data signal to the integrated personal area networking means of the mobile data processing device; and decoding and routing means, to be provided within the mobile data processing device, for decoding audio-visual data received by the integrated personal area networking means and routing video data to the visual display unit of the mobile data processing device.
Preferably, the audio-visual data signal source and the transmitter means are provided in a base station unit, which is most preferably portable. The transmitter means preferably has a personal area network signal range or may have a local area network to signal range.
The audio-visual data signal source preferably comprises: signal input means; signal receiver means coupled to the signal input means; video signal encoder means and audio signal encoder means, both receiving the output of the signal receiver means and being operable to generate corresponding digital data streams; and data stream processor means operable to process a digital data stream into a data signal having a data format and data rate suitable for transmission by the transmitter means to the integrated personal area networking means.
The audio-visual data signal source is preferably operable to receive a live transmission television signal and to generate a corresponding audiovisual data signal for transmission to the mobile data processing device. The signal input means preferably comprises a television signal antenna.
The antenna may be provided within the base station unit or may be at least partially external to the base station unit.
The audio-visual data signal source may alternatively or additionally be operable to receive a pre-recorded audio-visual signal, such as that output from a videotape player or a DVD player. The signal input means preferably comprises an electrical signal input port adapted to receive a audio-visual signal transmitted thereto through an electrical cable.
Be ë a C .e The signal receiver means may be an analogue signal receiver means or may be a digital signal receiver means. The signal receiver means preferably comprises signal channel selection means. The signal receiver means may further comprise an amplifier and signal filtering apparatus.
The video signal encoder means is preferably operable to generate a digital data stream related to the video content of a received signal. The video signal encoder means is preferably further operable to compress the digital data stream in order to reduce the effective bit rate of the data stream. The data compression is preferably achieved by application of a data compression algorithm, such as H263 or a derivative algorithm of lo H263, or MPEG4 or a derivative algorithm of MPEG4.
The video signal encoder means may comprise a microprocessor or digital signal processor operable to apply the data compression algorithm to the digital data stream.
The video signal encoder means may alternatively or additionally comprise a programmable hardware device, or an electronic circuit device, such as an electronic Is gate-array or an application-specific integrated circuit (ASIC), operable to apply the data compression algorithm to the digital data stream.
The audio signal encoder means is preferably operable to generate a digital data stream related to the audio content of a received signal. The audio signal encoder means is preferably further operable to compress the digital data stream in order to no reduce the effective bit rate of the data stream. The data compression is preferably achieved by application of a data compression algorithm, such as AMR, AAC, MP3, ADPCM or derivative algorithms.
The audio signal encoder means may comprise a microprocessor or digital signal processor, within which the data compression algorithm is stored, operable to apply the data compression algorithm to the digital data stream. The audio signal encoder means may alternatively or additionally comprise a programmable hardware device, or an electronic circuit device, such as an electronic gate-array or an application-specific integrated circuit (ASIC), operable to apply the data compression algorithm to the digital data stream.
so The audio-visual data system preferably further comprises a data stream combiner operable to combine the digital data stream outputs from the video signal encoder ce c c C e C C C C C 8 C C
C C C C C
C C C * C CC C means and the audio signal encoder means and to process the combined digital data stream into a data signal having a data format and data rate suitable for transmission by the transmitter means to the personal area networking means. The format of the combined digital data stream preferably comprises an industry standard format suitable for receipt by the mobile data processing device.
The audio-visual data signal source may alternatively or additionally comprise an audio- visual data storage and reader device operable to output pre-recorded audio-visual data The data storage and reader device may be a fixed device, such as a hard disc drive.
The data storage and reader device may alternatively comprise a reader device and a to removable data storage device, such as a card reader and a Flash memory card.
The transmitter means is preferably a wireless transmitter means of a complimentary type to the personal area networking means. The wireless transmitter means preferably comprises a wireless transceiver, which may be a radio frequency transceiver, such as a Bluetooth wireless transceiver, or may be an optical transceiver, such as an infrared transceiver.
The transmitter means may alternatively comprise a wired transmitter means of a complimentary type to the personal area networking means, and may comprise a wired transceiver. The wired transceiver is preferably connectable to the personal area networking means by means of a serial data link, such as a universal serial bus or a so serial data cable.
The decoding and routing means is preferably further operable to route audio data to a loud speaker or audio headset connector of the mobile data processing device. The decoding and routing means is preferably further operable to perform error checking and error correction on received audio-visual data. The decoding and routing means is preferably further operable to separate and synchronies the video data and audio data from a received audio-visual data stream. The decoding and routing means is preferably further operable to decode received video data and audio data. The decoding and routing means preferably comprises one or more software programmes provided within the mobile data processing device. The decoding and routing means so may alternatively or additionally comprise one or more electronic circuits provided within the mobile data processing device. t,
ae tes 1 The transmitter means may further comprise an audio signal transmitter for transmitting the audio data stream to an external audio device, such as an audio speaker, an audio speaker headset or a stereo system. The audio signal transmitter may comprise a wired signal transmitter or a wireless signal transmitter. The wireless signal transmitter may be an optical transmitter means, such as an infrared transmitter, or may be a radio frequency transmitter means, such as a Bluetooth transmitter.
The audio-visual data system preferably further comprises video data control means operable to control one or more characteristics, such as brightness, colour or contrast, of the video data transmitted to the mobile data processing device. The video data lo control means is preferably provided within the base station unit.
The audio-visual data system preferably further comprises audio data control means operable to control one or more characteristics, such as volume, balance and tone, of the audio data transmitted to the mobile telephone or external audio device. The audio data control means is preferably provided within the base station unit.
The video and audio data control means are preferably operated via a command unit provided within the base station unit. The command unit preferably comprises a plurality of command keys operable by a user and may additionally comprise a visual display screen. Where the personal area networking means is a transceiver, the video and audio data control means may be operated via the key pad of the mobile data so processing device, with commands being transmitted back from the mobile data processing device to the base station unit via the personal area networking means.
The audio-visual data system may further comprise operable to record audio-visual data. Preferably, the audio-visual data storage and reader device and the audio-visual data recorder means comprise a combined audiovisual data storage and reader/writer as device. The audio-visual data to be recorded may originate from a television transmission signal or from a digital camera provided on the mobile data processing device. The audiovisual data may alternatively originate from an external audio-visual data signal source.
According to a second aspect of the invention there is provided mobile television so apparatus comprising: t - 8 8 8 4< 8. 8 r 8 8 4 t 8 8 8 C 8 a mobile data processing device having integrated personal area networking means; and an audio-visual data system according to the first aspect of the invention.
The mobile data processing device may be a mobile telephone, a mobile telephone, a s mobile smartphone, a personal digital assistant, a pocket personal computer, a handheld personal computer, a hiptop personal computer or an instant messenger.
The integrated personal area networking means preferably comprises a transceiver.
The transceiver may comprise an optical transceiver, such as an infra-red transceiver, or a radio frequency transceiver, such as a Bluetooth transceiver.
to The personal area networking means may alternatively comprise a serial data input device or a serial data inpuVoutput device.
Embodiments of the invention will now be described in detail, by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a schematic representation of an audio-visual data system for a mobile data processing device according to a first embodiment of the invention; Figure 2 is a schematic representation of an audio-visual data system for a mobile data processing device according to a second embodiment of the invention; Figure 3 is a schematic representation of mobile television apparatus according to a third embodiment of the invention; so Figure 4 is a schematic representation of mobile television apparatus according to a fourth embodiment of the invention; and Figure 5 is a schematic representation of mobile television apparatus according to a fifth embodiment of the invention.
Referring to Fig.1, a first embodiment of the invention provides an audiovisual data system 10 for a mobile personal digital assistant (PDA) (not shown) having integrated personal area networking means in the form of a radio frequency (Bluetooth) wireless transceiver.
.. e e e e e e e e The audio-visual data system 10 comprises an audio-visual data signal source 12, operable to generate an audio-visual data signal, and transmitter means in the form of a radio frequency (Bluetooth) wireless transmitter 14. The audio-visual data system 10 also comprises decoding and routing means, which in this example is implemented as a s computer programme stored and run within the PDA.
The audio-visual data signal source 12 comprises signal input means in the form of an analogue antenna 16 for receiving analogue television signals, a television signal receiver 18, a video signal encoder 20, an audio signal encoder 22 and data stream processor means 24.
to The audio-visual data signal source 12 and the wireless transmitter 14 are provided within a portable base station unit 26. In this example, the antenna 16 is located within the base station unit 26, but it will be appreciated that the antenna 16 may alternatively be provided partially or completely externally to the base station unit 26.
The television signal receiver 18 is an analogue television signal receiver and comprises an amplifier 28, a tuner 30 and a demodulator 32. Analogue television signals received by the antenna 16 are amplified by the amplifier 28 and filtered by the tuner 30 in order to select a channel to be viewed. The audio-visual data (being the television picture plus any sound) is then demodulated from the carrier signal by the demodulator 32.
to In this example, the audio-visual data system 10 is provided with a video and audio data control unit 34, operable to control the brightness, colour and contrast of the video data, and the volume, balance and tone of the audio data. The video and audio data control unit 34 is operated via a command unit (not shown) having a plurality of command keys operable by a user and a visual display screen on which video and audio data status information is provided. The control unit 34 and the command unit are provided within the base station unit 26.
It will be appreciated that the antenna 16 and the television signal receiver 18 may alternatively be digital devices for receiving digital television signals.
The video signal encoder 20 is operable to produce a stream of digital data related to so the video content of the audio-visual data output from the TV signal receiver 18. The video signal encoder 20 is additionally operable to compress the digital video data e e- stream in order to reduce the effective bit rate of the video data stream. In this example, the video signal encoder 20 comprises a digital signal processor and the signal processing is carried out by computer programmed running within the digital signal processor. The data compression is performed by application of the H263 data s compression algorithm, but it may alternatively be performed by application of an H263 derivative algorithm, or an MPEG4 or derivative algorithm.
The audio signal encoder 22 is operable to produce a stream of digital data related to the audio content of the audio-visual data output from the TV signal receiver 18. The audio signal encoder 22 is additionally operable to compress the digital audio data to stream in order to reduce the effective bit rate of the audio data stream. In this example, the audio signal encoder 22 comprises a digital signal processor and the signal processing is carried out by computer programmed running within the digital signal processor. The data compression is performed by application of the AMR data compression algorithm, but it may alternatively be performed by application of an AMR derivative algorithm, or the MP3, AAC, or ADPCM compression algorithms or one of their derivative algorithms.
The data stream processor means 24 comprises a digital data stream combiner. The stream combiner 24 is operable to combine the digital video data stream and the digital audio data stream. The stream combiner 24 also processes the combined digital data so stream into a data format, suitable for transmission by the wireless transceiver 14. The combined digital data stream may be put into a format set by the 3rd Generation Partnership Project (3GPP), a RealPlayer (produced by RealNetworks Inc.), or pvPlayer (produced by PacketVideo Corporation) data format.
The decoding and routing means, which in this example takes the form of computer us programmed stored and run within the PDA, is operable to decode and route a combined data stream received by the wireless transceiver on the PDA from the wireless transmitter 14 on the base station unit 26. The decoding and routing means further comprise programmed which perform error checking and correction on a received data stream, and to separate out the video data stream and the audio data so stream. The video data stream is routed to the display screen of the PDA and the audio data stream is routed to an audio speaker on the PDA.
The computer programmes may be loaded onto the PDA from a personal computer, or ë. .: e . t downloaded from an internet website.
A second embodiment of the invention is shown in Fig.2 and provides an audio-visual data system 40 for a mobile data processing device in the form of a mobile smartphone or a mobile telephone (not shown). The audiovisual data system 40 of this embodiment is substantially the same as the system 10 of the previous embodiment, with the following modifications. The same reference numerals are retained for corresponding features.
In this embodiment the transmitter means comprises a wired transceiver 42, the output signal from which is transmitted via a universal serial bus (USB) cable 44 to a serial to data input socket on the mobile smartphone/telephone.
The audio-visual data signal source 12 of this embodiment further comprises an audio- visual data storage device player in the form of a memory card reader 46 operable to read and output pre-recorded audio-visual data provided on a data storage device in the form of a Flash memory card (not shown). The pre-recorded audio-visual data may take the form of one or more television programs and/or films. In this example, the audio- visual data is stored on the Flash memory card in the same format as that transmitted by the transceiver 42. The audio-visual data may alternatively be stored in a different format from the transmission format, with the transceiver performing conversion of the data from one format to the other prior to transmission.
so The video and audio data control unit 34 is further operable to control the brightness, colour and contrast of the video data, and the volume, balance and tone of the audio data output from the card reader 46.
Figure 3 shows mobile television apparatus 50 according to a third embodiment of the invention. The mobile television apparatus 50 comprises an audio-visual data system 52 and a mobile telephone 54.
The mobile telephone 54 is a mobile telephone having an integrated radio frequency (Bluetooth) wireless transceiver 56. The mobile telephone 54 has a display screen 58, a loud speaker 60 and a digital signal processor 62.
The audio-visual data system 52 is substantially the same as the system 40 of the so previous embodiment, with the following modifications. The same reference numbers .e, e , a a a a . . are retained for corresponding features. In this embodiment the transmitter means comprises a radio frequency (Bluetooth) wireless transceiver 66.
The audio-visual data signal source 12 of this embodiment comprises a remotely operable command unit 64 which operates the video and audio data control unit 34.
The command unit 64 is operated via the keypad (not shown) on the mobile telephone 54, with commands being routed from the keypad, through the wireless transceiver 56 to the wireless transceiver 66 on the base station 26, and on to the command unit 64.
In use, a combined digital data stream transmitted by the transceiver 66 on the base station to the transceiver 56 on the mobile telephone 54 is processed within the digital to signal processor 62. The digital signal processor 62 runs the decoding, routing and error checking/correction programmes (application programmes A), which are stored in the mobile telephone memory (not shown), in communication with the mobile telephone's proprietary software (P). Once the data has been error checked and corrected (if necessary), and the video and audio data decoded, the video data is routed Is to the display screen 58 and the audio data is routed to the audio speaker 60.
Figure 4 shows a mobile television apparatus 70 according to a fourth embodiment of the invention. The apparatus 70 is substantially the same as the apparatus 50 of the previous embodiment, with the following modifications. The same reference numerals are retained for corresponding features.
to In this embodiment, the decoded audio data is routed to an audio output 72 wired to an audio headset 74. The card reader 46 (Fig. 3) is replaced by a combined audio-visual data storage and reader device in the form of a read/write hard disc unit 76. The hard disc unit is operable to output pre-recorded audio-visual data stored on a readable/writeable memory disc (not shown) within the hard disc unit 76. The hard disc unit 76 is additionally operable to record audio-visual data received by the transceiver 66 on the base station 26 from the transceiver 56 on the mobile telephone 54. This audio-visual data may comprise images or video clips recorded by an internal digital camera (not shown) within the mobile telephone 54.
The hard disc unit 76 may also be used to record audio-visual data in the form of TV so programmed received through the antenna 16. The TV transmission is processed by . c c ce . . c c ae c the audio-visual data signal source 12 as described above, and then routed from the transceiver 66 to the hard disc unit 76, where it is recorded/stored.
Figure 5 shows a mobile television apparatus 80 according to a fifth embodiment of the invention. The apparatus 80 is substantially the same as the apparatus 70 of the s previous embodiment, with the following modifications. The same reference numerals are retained for corresponding features.
In this embodiment the audio output 72 and audio headset 74 are replaced by an audio speaker 60 provided on the mobile telephone 54 and a wireless audio headset 82. The wireless audio headset 82 incorporates a wireless radio frequency (Bluetooth) receiver lo operable to receive audio data. In this example, the audio data is transmitted to the headset from the transceiver 56 on the mobile telephone 54. The audio data may alternatively be transmitted from a transceiver on the base station 26, which may be the transceiver 66 or a separate, dedicated wireless transmitter.
The headset 82 is also provided with data processing means (not shown) operable to is process and decode the audio data for playing through the speakers of the headset 82.
A user can select, via the telephone key pad, whether to play audio data through the audio speaker 60 or through the headset 82.
Various modifications may be made to the described embodiments without departing from the scope of the invention. For example, where a PDA, mobile telephone or so mobile smartphone is described it will be appreciated that any mobile telephone, mobile smartphone, personal digital assistant (PDA), pocket personal computer (PC), handheld PC, hiptop PC or instant messenger having personal area networking means may alternatively be used.
The Flash memory card may be replaced by a different type of memory device, and the as card reader may be replaced by a correspondingly different reader device. The memory device may be fixed or removable. Different types of wireless transmitter, transceiver and receiver may be used to those described.
The audio data signal may alternatively be output to an audio speaker or to the auxiliary input of a stereo system. The audio data signal may alternatively be routed to an audio JO headset, audio speaker or stereo system from a transmitter on the base station, which may be a wireless transmitter or a wired transmitter.
c: .e ce. e: * # # * . * * . The decoding and routing means may alternatively, or additionally, comprise electronic circuitry in place of all or part of the computer programmes described.
Although the mobile television apparatus of Figures 3 to 5 is shown having a single mobile telephone, it will be appreciated that more than one mobile telephone may receive the data stream output from a single audio-visual data system. In addition, it will be appreciated that a single audio-visual data system may be used to transmit audio- visual data to different types of mobile data processing devices simultaneously.
Further, referring in particular to Fig. 5, the audio data may be received by more than one wireless audio headset, enabling more than one person to listen to the audio signal to whilst watching the video data displayed on the display screen of one mobile telephone.
The described embodiments provide various advantages, including enabling a user to watch live television broadcast programs of unlimited duration, or pre-recorded television programs or films of much greater duration than can be downloaded from an internet web site. In addition, the telephone functionality of a mobile telephone or smart Is phone can remain active during use of the mobile television apparatus since the audio- visual data is received by a separate receiver to the microwave receiver used to send and receive telephony signals. The mobile television apparatus is significantly more compact in size compared to miniature, portable televisions, and provides the additional facility to watch pre- recorded films or programs. The mobile television apparatus also enables users of mobile data processing devices incorporating digital cameras to store large numbers of digital images or a digital video recording within the audio-visual data system.

Claims (30)

  1. e e. e ce e e e .. e e e 1 2 e e e e e e c e Claims An
    audio-visual data system for a mobile data processing device having integrated personal area networking means, the system comprising: an audio-visual data signal source operable to generate an audio-visual data signal; transmitter means operable to transmit the audio-visual data signal to the integrated personal area networking means of the mobile data processing device; and decoding and routing means, to be provided within the mobile data processing device, for decoding audio-visual data received by the integrated personal area networking means and routing video data to the visual display unit of the mobile data processing device.
  2. 2. A system as claimed in claim 1, wherein the audio-visual data signal source and the transmitter means are provided in a portable base station unit.
  3. 3. A system as claimed in claims 1 or 2, wherein the audio-visual data signal source comprises: signal input means; signal receiver means coupled to the signal input means; video signal encoder means and audio signal encoder means, both receiving the output of the signal receiver means and being operable to generate corresponding digital data streams; and data stream processor means operable to process a digital data stream into a data signal having a data format and data rate suitable for transmission by the transmitter means to the integrated personal area networking means.
  4. 4. A system as claimed in claim 3, wherein the audio-visual data signal source is operable to receive a live transmission television signal and to generate a corresponding audio-visual data signal for transmission to the mobile data processing device, the signal input means comprising a television signal antenna. 8,
    8 *e
  5. 5. A system as claimed in claims 3 or 4, wherein the audio-visual data signal source is operable to receive a pre-recorded audio-visual signal, such as that output from a videotape player or a DVD player, the signal input means comprising an electrical signal input port adapted to receive a audio-visual signal transmitted thereto through an electrical cable.
  6. 6. A system as claimed in any of claims 3 to 5, wherein the signal receiver means comprises signal channel selection means, an amplifier and signal filtering apparatus.
  7. 7. A system as claimed in any of claims 3 to 6, wherein the video signal encoder means is operable to generate a digital data stream related to the video content of a received signal and to compress the digital data stream in order to reduce the effective bit rate of the data stream.
  8. 8. A system as claimed in any of claims 3 to 7, wherein the audio signal encoder means is operable to generate a digital data stream related to the audio content of a received signal and to compress the digital data stream in order to reduce the effective bit rate of the data stream.
  9. 9. A system as claimed in claims 7 or 8, wherein the data compression is achieved by application of a data compression algorithm.
  10. 1 O.A system as claimed in claim 9, wherein a signal encoder means comprises a microprocessor or digital signal processor, within which the data compression algorithm is stored, operable to apply the data compression algorithm to the digital data stream.
  11. 11.A system as claimed in claims 9 or 10, wherein a signal encoder means comprises a programmable hardware device, an electronic circuit device, an electronic gate-array or an application-specific integrated circuit operable to apply the data compression algorithm to the digital data stream.
  12. 12. A system as claimed in any of claims 3 to 1 1, wherein the audiovisual data system further comprises a data stream combiner operable to a. . : c . . . . 17 ':e ë:. .' : combine the digital data stream outputs from the video signal encoder means and the audio signal encoder means and to process the combined digital data stream into a data signal having a data format and data rate suitable for transmission by the transmitter means to the personal area networking means.
  13. 1 3.A system as claimed in any preceding claim, wherein the audio-visual data signal source comprises an audio-visual data storage and reader device operable to output pre-recorded audio-visual data.
  14. 1 4.A system as claimed in any preceding claim, wherein the transmitter means is a wireless transmitter means of a complimentary type to the personal area networking means.
  15. 15.A system as claimed in claim 14, wherein the wireless transmitter means comprises a radio frequency wireless transceiver or an optical wireless transceiver.
  16. 16. A system as claimed in any of claims 1 to 13, wherein the transmitter means comprises a wired transmitter means of a complimentary type to the personal area networking means.
  17. 17.A system as claimed in claim 16, wherein the wired transmitter means comprises a wired transceiver connectable to the personal area networking means by means of a serial data link.
  18. 18.A system as claimed in any preceding claim, wherein the decoding and routing means is further operable to route audio data to a loud speaker or audio headset connector of the mobile data processing device, to perform error checking and error correction on received audio-visual data, to separate and synchronise the video data and audio data from a received audio-visual data stream and to decode received video data and audio data. ee e
    ë I.e e 4.
  19. 1 9.A system as claimed in claim 18, wherein the decoding and routing means comprises one or more computer programmes provided within the mobile data processing device.
  20. 20.A system as claimed in claims 18 or 19, wherein the decoding and routing means comprises one or more electronic circuits provided within the mobile data processing device.
  21. 21.A system as claimed in any preceding claim, wherein the transmitter means further comprises an audio signal transmitter for transmitting the audio data stream to an external audio device.
  22. 22.A system as claimed in any preceding claim, wherein the audio-visual data system further comprises video data control means and audio data control means operable to control one or more characteristics of the video data and audio transmitted to the mobile data processing device.
  23. 23.A system as claimed in claim 22, wherein the video and audio data control means are operated via a command unit provided within the base station unit or via the key pad of the mobile data processing device.
  24. 24.A system as claimed in any preceding claim, wherein the audio-visual data system further comprises audio-visual data recorder means operable to record audio-visual data.
  25. 25. Mobile television apparatus comprising: a mobile data processing device having integrated personal area networking means; and an audiovisual data system as claimed ire any preceding claim.
  26. 26. Apparatus as claimed in claim 25, wherein the mobile data processing device is a mobile telephone, a mobile telephone, a mobile smartphone, a personal digital assistant, a pocket personal computer, a handheld personal computer, a hiptop personal computer or an instant messenger. ce a
    he a c ë a a, c,.
    1 ' a # . e I ea. .. .
  27. 27. Apparatus as claimed in claims 25 or 26, wherein the integrated personal area networking means comprises an optical transceiver or a radio frequency transceiver.
  28. 28.Apparatus as claimed in claims 25 or 26, wherein the personal area networking means comprises a serial data input device or a serial data inpuVoutput device.
  29. 29. An audio-visual data system for a mobile data processing device having integrated personal area networking means, the system being substantially as described above with reference to the accompanying drawings.
  30. 30. Mobile television apparatus substantially as described above with reference to Figures 3 to 5 of the accompanying drawings.
GB0400815A 2004-01-15 2004-01-15 Base station for transmitting audio visual signal to a mobile device in a home network Withdrawn GB2410160A (en)

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GB0400815A GB2410160A (en) 2004-01-15 2004-01-15 Base station for transmitting audio visual signal to a mobile device in a home network
PCT/GB2005/000096 WO2005069618A1 (en) 2004-01-15 2005-01-14 Portable audio/video system for mobile devices

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GB0400815A GB2410160A (en) 2004-01-15 2004-01-15 Base station for transmitting audio visual signal to a mobile device in a home network

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GB2410160A true GB2410160A (en) 2005-07-20

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1771006A1 (en) * 2005-09-29 2007-04-04 Hewlett-Packard Development Company, L.P. Remote media source device access
GB2431808A (en) * 2005-10-27 2007-05-02 Animation Technologies Inc Television signal processor with storage function
GB2439465A (en) * 2006-06-26 2007-12-27 Samsung Electronics Co Ltd Mobile television in a mobile telecommunications system
WO2007070134A3 (en) * 2005-12-14 2008-04-03 Sony Ericsson Mobile Comm Ab Portable a/v relay device
FR2917933A1 (en) * 2007-06-25 2008-12-26 Baracoda Sa FLOW DECODER DVB.
WO2009042195A1 (en) 2007-09-26 2009-04-02 Packetvideo Corp. System and method for receiving broadcast multimedia on a mobile device
WO2009044323A3 (en) * 2007-10-03 2009-05-28 Koninkl Philips Electronics Nv A method of managing multimedia service on a multimedia hand-held device
US7853830B2 (en) 2006-11-03 2010-12-14 Thomson Licensing Apparatus and method for providing error notification in a wireless virtual file system
EP2498180A1 (en) * 2011-03-07 2012-09-12 Alcatel Lucent Delayed downloading of content in a limited-multitasking environment
US10291964B2 (en) 2016-12-06 2019-05-14 At&T Intellectual Property I, L.P. Multimedia broadcast system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1503244A1 (en) 2003-07-28 2005-02-02 ASML Netherlands B.V. Lithographic projection apparatus and device manufacturing method
DE102006010836A1 (en) * 2006-03-07 2007-09-13 Micronas Gmbh Digital television signal receiving device for e.g. iPod, has interface for outputting data from demodulator to independent external device e.g. portable media device, where receiving device controls data communication with media device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320657A (en) * 1996-11-27 1998-06-24 Motorola Inc Wireless audio and video conferencing and telephony
US5841971A (en) * 1992-12-17 1998-11-24 Voxson International Pty. Limited Information transmission system for transmitting video signals over cellular telephone networks
JPH11313303A (en) * 1998-03-11 1999-11-09 Hughes Electronics Corp Compact wireless audio / video / data distribution and access system
EP1133120A2 (en) * 2000-03-10 2001-09-12 Victor Company Of Japan Limited Control data system and control data transmission method
US20010021998A1 (en) * 1999-05-26 2001-09-13 Neal Margulis Apparatus and method for effectively implementing a wireless television system
JP2003087704A (en) * 2001-09-12 2003-03-20 Kenwood Corp On-vehicle optical disk reproduction system, on-vehicle optical disk reproducing device, converter, and information communication terminal
US20030135859A1 (en) * 2001-07-19 2003-07-17 Daniel Putterman Home media network

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020056112A1 (en) * 1999-06-03 2002-05-09 Vincent Dureau Home digital assistant
CN1245801C (en) * 2000-07-18 2006-03-15 株式会社Ntt都科摩 Program providing system
FR2815504B1 (en) * 2000-10-17 2003-03-07 Sagem DEVICE FOR TRANSFERRING A DATA STREAM AND RELATED METHOD
US20020067405A1 (en) * 2000-12-04 2002-06-06 Mcdiarmid James Michael Internet-enabled portable audio/video teleconferencing method and apparatus
US20030194968A1 (en) * 2002-04-15 2003-10-16 Young Steven Jay System and method for local modulation and distribution of stored audio content
GB0307694D0 (en) * 2003-04-03 2003-05-07 Koninkl Philips Electronics Nv Broadcast delivery to a wireless device
GB2403868A (en) * 2003-06-30 2005-01-12 Nokia Corp Content transfer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841971A (en) * 1992-12-17 1998-11-24 Voxson International Pty. Limited Information transmission system for transmitting video signals over cellular telephone networks
GB2320657A (en) * 1996-11-27 1998-06-24 Motorola Inc Wireless audio and video conferencing and telephony
JPH11313303A (en) * 1998-03-11 1999-11-09 Hughes Electronics Corp Compact wireless audio / video / data distribution and access system
US20010021998A1 (en) * 1999-05-26 2001-09-13 Neal Margulis Apparatus and method for effectively implementing a wireless television system
EP1133120A2 (en) * 2000-03-10 2001-09-12 Victor Company Of Japan Limited Control data system and control data transmission method
US20030135859A1 (en) * 2001-07-19 2003-07-17 Daniel Putterman Home media network
JP2003087704A (en) * 2001-09-12 2003-03-20 Kenwood Corp On-vehicle optical disk reproduction system, on-vehicle optical disk reproducing device, converter, and information communication terminal

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9172992B2 (en) 2005-09-29 2015-10-27 Hewlett-Packard Development Company, L.P. Remote device access
EP1771006A1 (en) * 2005-09-29 2007-04-04 Hewlett-Packard Development Company, L.P. Remote media source device access
GB2431808A (en) * 2005-10-27 2007-05-02 Animation Technologies Inc Television signal processor with storage function
US7518503B2 (en) 2005-12-14 2009-04-14 Sony Ericsson Mobile Communications Ab Portable A/V relay device
WO2007070134A3 (en) * 2005-12-14 2008-04-03 Sony Ericsson Mobile Comm Ab Portable a/v relay device
GB2439465B (en) * 2006-06-26 2008-12-03 Samsung Electronics Co Ltd Mobile Communications
GB2439465A (en) * 2006-06-26 2007-12-27 Samsung Electronics Co Ltd Mobile television in a mobile telecommunications system
US7853830B2 (en) 2006-11-03 2010-12-14 Thomson Licensing Apparatus and method for providing error notification in a wireless virtual file system
WO2009007600A1 (en) * 2007-06-25 2009-01-15 Baracoda Dvb stream decoder
FR2917933A1 (en) * 2007-06-25 2008-12-26 Baracoda Sa FLOW DECODER DVB.
WO2009042195A1 (en) 2007-09-26 2009-04-02 Packetvideo Corp. System and method for receiving broadcast multimedia on a mobile device
EP2196027A4 (en) * 2007-09-26 2014-04-02 Packetvideo Corp System and method for receiving broadcast multimedia on a mobile device
US9661383B2 (en) 2007-09-26 2017-05-23 Iii Holdings 2, Llc System and method for receiving broadcast multimedia on a mobile device
WO2009044323A3 (en) * 2007-10-03 2009-05-28 Koninkl Philips Electronics Nv A method of managing multimedia service on a multimedia hand-held device
EP2498180A1 (en) * 2011-03-07 2012-09-12 Alcatel Lucent Delayed downloading of content in a limited-multitasking environment
FR2972589A1 (en) * 2011-03-07 2012-09-14 Alcatel Lucent DIFFERENT DOWNLOAD OF CONTENT ON A LIMITED MULTITASH ENVIRONMENT
US10291964B2 (en) 2016-12-06 2019-05-14 At&T Intellectual Property I, L.P. Multimedia broadcast system

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