KR101435834B1 - An IPTV receiver, a method of reproducing contents in the IPTV receiver, and a method of transmitting contents in an IPTV environment - Google Patents

Abstract

The present invention relates to an IPTV receiver, a method of reproducing contents in the IPTV receiver, and a method of transmitting contents in an IPTV environment. An example of a method of reproducing contents in an IPTV receiver according to the present invention includes: Requesting a desired series; Downloading the requested series and reproduction control information of the series; Receiving a request related to the playback time of the downloaded series; And reproducing and editing the contents in accordance with the downloaded reproduction control information at different ratios in order to reproduce the series according to the inputted reproduction time, And information defining the number of downloads of each content.

Therefore, according to the present invention, even in the case of a series of a plurality of contents, which takes a long time to view, important scenes can be edited and played back without missing important scenes or manual processing by a separate user. There is an effect that can be done.

IPTV, series, content, playback control information, editing

Description

TECHNICAL FIELD The present invention relates to an IPTV receiver, a method for reproducing contents in the IPTV receiver, and a method for transmitting contents in an IPTV environment.

The present invention relates to an IPTV receiver, a method for reproducing contents in the IPTV receiver, and a method for transmitting contents in an IPTV environment. More particularly, the present invention relates to an IPTV receiver for transmitting contents in an IPTV environment, And reproduction and editing of the content.

Conventional television (hereinafter referred to as "TV") broadcasts contents produced by broadcasters through radio wave transmission media such as terrestrial waves and cable and satellite broadcasts, and viewers watch broadcasts through a television receiver capable of receiving each medium .

However, as digital-based digital TV technology has been developed and commercialized in the existing analog broadcasting, it is expected that various contents such as real-time broadcasting, contents on demand (CoD), games, news, IPTV (Internet Protocol TeleVision) broadcasting provided to viewers is starting to be provided by various companies.

IPTV services can be broadly divided into Live Media Broadcast / Linear Broadcast TV and Contents by Demand. The IPTV service can be divided into two types, and it can be said that it is possible to provide users with a much wider range of contents than conventional analog and digital TV services.

In the conventional receiver, it is general to receive and process a broadcast signal transmitted unilaterally from a broadcasting station. However, there are many media capable of bi-directional communication at present, and such a base is provided to some extent in ordinary households. A medium capable of bidirectional communication is, for example, an internet protocol in each home.

With the Internet protocol, it is time to request, receive, and enjoy a desired program through bidirectional communication with a sender connected via a network. An example of this approach is IPTV, which is emerging recently.

The IPTV receiver is capable of receiving broadcasts in both directions via a network connected via an Internet protocol and transmitting data, and there is no restriction on time and place.

Conventionally, when a user selects and watches a specific content, generally, the content is played during a predetermined playback time of the content. Or that the user directly scans or skips unwanted portions through an input means such as a remote controller. In addition, when the user performs the handing operation as described above, there is a problem that accuracy is reduced and inconvenience is caused, such as missing an important scene, or scanning or skipping too many times and turning it again.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for editing and reproducing contents received in an IPTV receiver according to a user's request and an IPTV receiver providing such a function .

An example of a method for reproducing content in an IPTV receiver according to the present invention includes: requesting a desired series composed of a plurality of contents; Downloading the requested series and reproduction control information of the series; Receiving a request related to the playback time of the downloaded series; And reproducing and editing the contents in accordance with the downloaded reproduction control information at different ratios in order to reproduce the series according to the inputted reproduction time, And information defining the number of downloads of each content.

At this time, the playback control information may further include information defining a rating of a previous user in relation to each content.

In editing each of the contents, the content of each of the contents can be divided into a plurality of levels based on the importance.

In addition, the importance may be determined in consideration of the characteristics of the series.

In addition, the importance level can be determined on the basis of output of voice, whether it is the same video signal, and whether it is a plot of previous contents.

An example of a content transmission method in an IPTV environment according to the present invention is to transmit a series composed of a plurality of contents and reproduction control information for the series, the reproduction control information being information for defining the number of downloads of each content And a control unit.

At this time, the reproduction control information may further include information on a rating provided by the user in association with each of the contents.

An example of an IPTV receiver for reproducing a series of a plurality of contents according to the present invention includes a network interface for connecting to a network; A storage unit for downloading and storing playback control information for the series and the series through the network; A user input receiving unit for receiving information on a playback time of the downloaded series; A decoding unit decoding the downloaded series and reproduction control information; A control unit for editing and playing back the downloaded series according to the information on the input playback time and the downloaded playback control information; And an output unit for outputting the edited and reproduced series according to the control of the control unit.

At this time, the control unit may control to reproduce by using the reproduction control information further including information defining a rating of a previous user in relation to each content.

The control unit may divide the content of each content into a plurality of levels based on the importance, and control the content to be edited.

In addition, the control unit may determine the importance by considering characteristics of the series.

The control unit may determine the importance based on whether the audio is output, whether it is the same video signal, and whether it is a plot of the previous contents.

According to the present invention, even in the case of a series of a plurality of contents, which takes a long time to view, important scenes can be edited and played back without missing important scenes or manual processing by a separate user, There is an effect.

Hereinafter, specific embodiments of an IPTV (Internet Protocol Television) receiver according to the present invention, a method of reproducing contents in the IPTV receiver, and a method of transmitting contents in an IPTV environment will be described in detail. Will be described in detail with reference to the drawings.

In this case, the terms used in the present invention have been selected as general terms that are widely used at present, but in some cases, there are some terms selected arbitrarily by the applicant. In this case, since the meaning is described in detail in the description of the corresponding invention, It is to be understood that the present invention should be grasped as a meaning of a term that is not a name of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.

A method of transmitting content in an IPTV environment according to the present invention will now be described. 1 is a conceptual illustration of an IPTV environment in connection with the present invention.

1 is a conceptual diagram illustrating an IPTV environment in connection with the present invention. IPTV can watch broadcast programs on the Internet, such as terrestrial, satellite, or cable broadcasts, and can be used to access desired movies, music, e-commerce, and personal computers ), Which means that services such as e-mail can be made on television as if using the Internet.

The IPTV environment or the entire system can be divided into a program provider 10, a service provider 20, and a customer or consumer 30. At this time, the program provider 10 is also referred to as a platform provider.

Program provider 10 refers to one large group that provides all the overall services and data for a broadcast program. The service provider 20 maintains, maintains and manages the transmission network in order to transmit multimedia data to a customer or provide a stable reception environment of the customer, and provides the program provider 10 with an infrastructure for network transmission And functions. The customer 30 plays back the received data by using an infrastructure such as x digital subscriber line (xDSL) or cable, reacts promptly to the request of the user, and so on. Most of such customers 30 are made up of IPTV producers, and there may be an IPTV, an IP settop box (IP STB), and an IP phone. In the case of an IP phone, in general, an IPTV service can also serve as a phone service.

Hereinafter, each of the groups that perform different roles will be described in detail as described above.

First, the program provider 10 includes a TV station, a radio station, a video on demand (VoD) / audio on demand (MoD) service, a music on demand (MoD) A server, an electronic program guide (EPG) server, an electronic content guide (ECG) server, a portal server, and the like. Hereinafter, each will be described as follows.

A TV broadcasting station is a place where a broadcasting program is created, including a conventional terrestrial broadcasting station or a cable broadcasting station, and a program that a user can watch can be created, stored, and converted into digital data. Radio stations generally operate without a video channel, but may also have a video channel.

The VoD / AoD service has a characteristic different from that of the TV broadcasting station or the radio broadcasting station. The program provider will store and store programs to be broadcasted, but this is characteristic that the program can not be rewound or stopped unless it is recorded in live broadcasting with continuity. However, in the case of VoD or AoD, a user can first store a desired broadcast program, movie, or music, and then play and watch the program. For example, if there is a broadcast program that can not be watched properly due to lack of time, the user can access the site providing the broadcast service and download or directly play the file. AoD also offers the ability to record audio programs in a difficult or real-time manner.

The MoD service can download and listen to the music I want. MoD is similar to AoD, but the service can be expanded to use existing web services by music labels or music publishers.

The PF server can provide service to a company that manages all broadcast information and location information provided by the program provider 10 in place. The PF server mainly provides location information necessary for broadcast time of the corresponding broadcasting station, broadcasting, and information that the user can access.

Therefore, the service of the PF server must be provided in the IPTV environment, and each broadcasting station must have a PF server. If each broadcasting station does not have a PF server in the IPTV environment, the user may not be able to access the corresponding broadcasting station. In addition, the customer 30 must be able to process information received through the service provided by the PF server and display the processed information on the screen.

The service provided by the EPG server is a service that enables a user to inquire a broadcast program on a time zone basis or to grasp the broadcast program on a channel-by-channel basis. It is a service that is frequently used by a TV guide company, Can be automatically installed and executed in the customer (30).

The customer 30 can receive the service provided by the PF server and obtain only the information about the corresponding broadcasting station. However, the customer 30 can receive information on the real time broadcasting channels of all the broadcasting stations at once by receiving the service provided by the EPG server. For example, the customer 30 can receive the EPG service provided by the EPG server and schedule or record a CNN news or a disney broadcast. Therefore, the EPG server must provide detailed information of the broadcast program in the corresponding time zone.

Particularly, for example, in the case of a drama, the EPG service can search contents of a drama or classify a category of the drama as SF (science fiction), drama, animation, You can also provide detailed information about plot or characters in a movie or drama.

Also, the customer 30 can easily access the EPG service using the EPG key provided in the remote controller.

The ECG service provided by the ECG server makes it possible for the user to conveniently use the contents of the contents provided by the program provider 10, the location and access right of the connection server, and the like. At this time, the ECG service can provide the function of easily connecting the servers having the contents and the information of the contents in detail. In other words, the ECG service bundles services such as VoD / AoD and MoD in a similar manner as the EPG, thereby relieving the user of the burden of separately accessing contents for viewing or downloading through a content service.

Unlike the EPG service, the ECG service does not notify real time broadcast channel information but provides information about broadcast channel information already stored in the server, so that the user can watch at any time, and can conveniently download and store the information.

For example, a user may access a very difficult address or PF server to obtain information about a server having each content, which requires a lot of time and effort. However, when a user simply requests an ECG service using an ECG button provided on a remote controller or the like, the information collected and provided for all contents through the automatically installed ECG program is checked at a time, So that the convenience of the user can be pursued.

The service provided by the portal server is a web service provided by each broadcasting station and can provide information that can be connected to a web server of a broadcasting station or a service provider. The portal server can search program lists provided by broadcasting stations or program providers providing content services, and can provide functions such as ECG and EPG.

However, the portal service also has functions such as user authentication and license agreement, so it needs to connect to watch the program I want. In addition, the ECG or EPG service provides an integrated broadcast or content list, but the portal service may provide detailed information on broadcasting or content list information for the program provider. The user can easily access the portal service through a remote controller or the like.

The above description relates to services that the program provider 10 can provide, and each of the broadcasting stations or servers must be connected to the Internet in order to transmit programs or transmit broadcasting information in real time.

In addition, each broadcasting station and server may use an internet (real-time) protocol such as real-time transport protocol (RTP), real-time streaming protocol (RTSP), resource reservation protocol (RSVP) It is necessary to have a system which can connect to the network of the provider 20 and transmit the multimedia data without delay and error.

For example, in the IPTV environment, the program provider 10 may transmit multimedia in accordance with MPEG-2 (moving picture experts group-2) and / or AC-3 (audio coding-3) A user datagram protocol (RTP / UDP) protocol including time information for transcoding according to the IPTV environment and matching caption or lip sync is provided to the service provider 20 The system can be configured to pass through an IP network.

The service provider 20 provides the stability and bandwidth of the network so that multimedia data and / or broadcast data received from the program provider can be transmitted through the process described above. At this time, the service providers 20 may provide the IPTV service using the existing cable network. However, in such a case, the service providers 20 must change the equipment of the delivery network. That is, the service providers 20 have network equipment capable of transmitting data in real time, and must consider the bandwidth of the customer 30.

In addition, the service providers 20 need to reduce the bandwidth by processing a large amount of multimedia data using the above equipment and a multicast service which is a basic network service of IPTV. However, if the service provider 20 can not secure a sufficient bandwidth, the service provider 20 transcodes the multimedia data and / or broadcasting data received from the optical cable network configuration provider or program provider 10 again to MPEG-4 or MPEG- It may be transformed into the same form and transmitted.

The service provider 20 may include a network management system manager, a dynamic host control protocol (DHCP) server, and a content delivery network (CDN) server.

The NMS manager manages the IPTV broadcast receiver of the customer 30 and the transmission network that the service provider 20 can transmit to each customer. For example, the service provider 20 must know that a problem has occurred in the transmission network through the NMS manager, that normal broadcasting is not received in the customer 30, and that the service provider 20 has emergency means for handling the problem do.

The NMS manager described above is widely used as a standardized means for smoothly controlling and managing remote transport layer machines. That is, the service provider 20 can use the NMS manager to confirm how much traffic is generated for a certain broadcast and which bandwidth is insufficient in which area.

In addition, the service provider 20 must provide the service of the NMS manager to the program provider 10 so that a group can be created and managed at the time of multicasting. This is because the program provider 10 must be able to generate more multicast groups in certain cases.

The DHCP server automatically assigns the IP address to the customer's IPTV broadcast receiver and informs the address of the CDN server. The DHCP server is used as a means for assigning an IP to a PC in a general network.

That is, the service provider 20 must transmit an address that can be connected to the IPTV broadcast receiver permitted to use through the DHCP server, so that the service provider 20 can perform the registration process when the user first accesses the IPTV broadcast receiver. The service provider 20 can provide IPv4 (internet protocol version 4) to an IPTV broadcast receiver in an IPTV environment, but may also provide IPv6 (internet protocol version 6). Therefore, it can not be used as an IPTV receiver that provides IPv4.

The CDN server provides CDN information together with IP when the IPTV broadcasting receiver is powered on for the first time. The CDN information includes registration and authentication of a user of an IPTV broadcaster and PF information as described above. Therefore, if the IPTV broadcast receiver does not receive the CDN information from the service provider 20, it can not receive the broadcast.

The customer 30 includes various types of IPTV broadcast receivers. If the user has a general TV, the IPTV STB can be rented to enjoy the IPTV broadcasting service at low cost. In addition, the service provider 20 can pay the additional service fee at an inexpensive price, have.

An IPTV broadcast receiver basically has a network interface to connect to a network, receive data packets using an Internet Protocol (IP), and reproduce multimedia data on the screen. In addition, an IPTV broadcast receiver must quickly transmit a data packet through a network using an input device such as a remote controller, receive the corresponding information from the server, and respond. That is, an IPTV broadcasting receiver must be able to transmit user's requests in both directions while processing multimedia data.

In addition, the input device such as the remote controller should have a function button for IPTV broadcasting service so as to provide the bidirectional service. Accordingly, the user can view and enjoy a wonderful scene in the drama using the external input device, and can use additional services such as location information and hotel reservation.

Meanwhile, the NMS manager controls and manages the transport network and the IPTV broadcast receiver. In the future, in the IPTV environment, the area of the broadcasting service can be further expanded and additional services can be increased. Accordingly, for example, if the IPTV broadcast receivers surge in the future and additional services are further increased, the role of the NMS manager will be important.

Hereinafter, in describing the technical idea of the present invention, a series will be described as an example for convenience of explanation. Here, a series refers to a large group including a plurality of related contents. For example, suppose you have a daily drama titled A. At this time, the daily drama titled as A can be said to be a series, and the amount of daily broadcasting for the daily drama titled A can be seen as one content. Or season content in a series, and each season as a content.

Hereinafter, a method of transmitting content in an IPTV environment as described above will be described. 2 is a flowchart illustrating an example of a method for transmitting content in an IPTV environment according to the present invention.

Hereinafter, a method of transmitting a series in an IPTV environment will be described in connection with the present invention.

First, each content constituting a series and reproduction control information of the series are generated (S201). Here, the playback control information of the series together with each content constituting the series may be transmitted together or with a priority of time.

Here, the playback control information may include information on the number of times each content constituting the series is downloaded, and information on ratings after playback of the users who have been downloaded. In addition, the reproduction control information may provide information on the total reproduction time of the series. Accordingly, the IPTV receiver may configure the UI using the reproduction control information including the information on the total reproduction time, and provide the UI to the user.

In the server having the series, for example, the server transmits the download request of the series and the playback control information to the IPTV receiver, that is, the terminal, in the corresponding terminal (S202). Here, the server may be provided with the series product directly or may receive the series product manufactured by the manufacturer. In addition, it may be determined whether the user is eligible to download the series legitimately in the transmission process and determine whether to transmit the series.

Next, a method of receiving and reproducing the content transmitted as described above will be described. 3 is a flowchart illustrating an example of a method of reproducing a series in an IPTV receiver according to the present invention.

First, the IPTV receiver accesses a server having a series requested by the user and requests download of the series (S301).

In response to the request, the playback control information about the series and the series is downloaded from the server (S302). Here, the playback control information does not necessarily have to be downloaded at the same time, and may be downloaded when necessary and at a time according to a user's request.

When the corresponding series is downloaded as described above, playback is now performed. Here, in reproducing the series, the present invention edits and reproduces the downloaded series in accordance with a desired playback time inputted according to a user's request.

For example, suppose a series is composed of 10 contents, and the playback time of each content is 1 hour each. Therefore, when the series is reproduced, a total of 10 hours of reproduction time is required. At this time, the receiver may configure the UI regarding the total playback time and provide the UI to the user.

However, when the user wants to drive the series, the user may want to view the total playback time of the series through the UI for 10 hours, or all three hours.

That is, the receiver receives information on the playback time of the series from the user (S303).

It is determined whether the information on the playback time of the inputted series is smaller than the information on the total playback time (S304).

If it is determined that the received play time is less than the total play time, the series is edited (S305) and played back (S306) according to the play control information.

Here, the editing may be performed according to various methods. For example, each content that makes up a series can be edited to the same degree. However, this may increase the likelihood of editing a relatively important part. Therefore, a criterion for editing is needed.

Hereinafter, for the sake of convenience of description, the present specification intends to use information on the number of downloads of each content constituting the series in the information on the downloaded reproduction control. This is to reduce the editing rate of the content because it is judged that the content having a relatively large number of downloads is important in the series. That is, each content is generally edited with a different weight. This is because the download count of all contents may not be the same.

At this time, in the present invention, in setting the editing criterion as described above, in addition to the information on the number of downloads, information on ratings of users who download and view each content may be considered. That is, the content having a relatively high rating is judged to be important content, so as to reduce the editing ratio.

Further, the editing for each of the contents may be performed according to a predefined specific criterion. The predefined specific criteria include, for example, importance. In this case, the term " important figure " refers to the edit priority order of the content at the time of editing, which can take into consideration the character of the series.

In other words, when the series is related to linguistic education broadcasting or music broadcasting, the part where the voice is not heard has a lower priority as a relatively low importance part. In the same concept, it is possible to set a portion in which a voice does not appear in a drama as a portion having a low importance.

In this case, various methods may be used to determine whether speech is output in relation to speech. For example, a frequency component analysis theory (for example, FFT (Fast Fourier Transform)) among signal processing algorithms It is possible to distinguish only the characteristics of speech. For example, a portion having a voice output of less than 8 KHz may be set as a portion having a low priority.

In addition, even in the case of the same video signal, it can be set to have a low priority. The same video signal may be a repetitive plot portion for previous segments that are recalled or output at the beginning of each content. Even if this part is edited, it may not cause great inconvenience to the user.

If the contents of the series are edited and the total playback time of the series is reduced by the above-described method, the user does not need to directly scan or skip, and by skipping the desired portion due to such operation, You can eliminate or reduce going cases. Although not described in detail herein, it will be appreciated that direct scanning or skipping is also possible in response to a user's request during editing and playback.

Hereinafter, an IPTV receiver performing the above-described operation will be described. 4 is a block diagram of an IPTV receiver constructed in accordance with the present invention.

The receiver includes a network interface 1201, an IP manager 1202, a conditional access system (CAS) / digital rights management (DRM) unit 1203, a service delivery manager 1203, A demultiplexer 1205, an audio / video decoder 1206, a display apparatus 1207, an application controller 1208, a channel manager 1204, a demultiplexer 1205, a channel manager 1209, a service information decoder 1210, a service discovery manager 1211, a service control manager 1212, a system manager, A storage medium 1213, a storage apparatus 1214, a storage medium control unit 1215, and a storage medium 1216.

The network interface unit 1201 connects a receiver with a network in order to service a series of contents, and can receive or transmit packets through the connected network.

The IP manager 1202 can participate in the delivery of the packets received from the source network to the destination network through packets or packets transmitted through the connected network. That is, the packets can be classified to correspond to an appropriate protocol.

The CAS / DRM unit 1203 takes charge of functions related to the restriction of the reception of the service relating to the series and digital rights management. That is, the CAS / DRM unit 1203 receives a packet received from the network connected through the network interface unit 1201 with respect to the service related to the series through the IP manager 1202, Any restrictions on digital rights management can be lifted. In other words, the CAS / DRM unit 1203 is responsible for accessing or controlling the redirection of received packets.

The service delivery manager 1204 is responsible for handling real-time streaming data. At this time, RTP / RTCP can be used for an MPEG-2 transport stream. That is, the MPEG-2 packets are encapsulated in RTP. Accordingly, the service delivery manager 1204 parses the RTP packets, and transmits the encapsulated MPEG-2 packets to the demultiplexing unit 1205. Or service delivery manager 1204 may send feedback on the quality of network reception using RTCP. At this time, the MPEG-2 transport packets can be directly transmitted to UDP without RTP.

The demultiplexing unit 1205 demultiplexes the audio, video and reproduction control information from the received transport stream packets. At this time, the demultiplexer 1205 demultiplexes the reproduction control information under the control of the reproduction control information decoder, and demultiplexes the audio / video transmission packets under the control of the channel manager 1209. The demultiplexing unit 1205 transmits the demultiplexed reproduction control information to the reproduction control information decoder 1210.

The audio / video decoder 1206 receives and processes the demultiplexed audio / video packets from the demultiplexer 1205.

The display unit 1207 receives and displays the audio / video signal processed by the audio / video decoder 1206.

The application control unit 1208 supports a graphic user interface (GUI) on the display unit for the user and receives a user's input through an external input device such as a remote controller or a front panel, In case of channel selection, the input is transmitted to the channel manager 1209. In addition, the application control unit 1208 may control key states of the entire receiver system or store the configuration data in the storage unit 1214. [

The channel manager 1209 creates a channel map or controls the service discovery manager 1211. In addition, the channel manager 2009 requests or resets the service information decoder 1210 for channel information. The channel manager 1209 sets a PID (Packet Identifier) to the demultiplexer 1205 to receive the audio / video packet.

The reproduction control information decoder 1210 is a module for controlling the reproduction control information and performs a slave operation under the control of the channel manager 1209. [ The reproduction control information decoder 1210 sets the corresponding PID to the demultiplexer 1205 so that the reproduction control information can be demultiplexed. The reproduction control information decoder 1210 receives and processes each reproduction control information generated by the demultiplexing unit 1205 according to the setting. Also, the playback control information decoder 1210 may receive the service information from the service delivery manager 1204 and may create a service information database for the broadcast service.

The service discovery manager 1211 enables and discovers IPTV services through an IPTV network capable of bidirectional services. The service discovery manager 1211 provides all the information for the selected service.

The service control manager 1212 is responsible for selection and control of services. For example, the service control manager 1212 selects a live broadcast service using an internet group management protocol (IGMP) or an RTSP protocol, or selects a VOD content using an RTSP protocol. At this time, the RTSP protocol is used to control the delivery of television and audio broadcasted or broadcasted directly. In addition, the RTSP protocol is used for continuous transmission control (TCP) connection or trick mode control for real-time broadcasting media string.

The system manager 1213 controls a boot flow according to on / off of the power of the receiver system and stores a ROM image including the downloaded software image in a storage unit (1214).

The storage unit 1214 stores set-up data and the like for the system. A nonvolatile random access memory (NVRAM) or a flash memory may be used as the storage unit.

The storage medium 1216 temporarily stores a signal transmitted from the demultiplexer 1205 or the audio / video decoder 1206 and transmits the temporarily stored signal to the demultiplexer 1205 or the audio / video decoder 1206 do. At this time, the storage medium 1216 writes data from the received signal under the control of the storage medium control unit 1215, stores the signal, and provides the demultiplexed data to the demultiplexer 1205.

In connection with the present invention, the application control unit 1208 may receive information on the playback time of the series downloaded from the user. Upon receipt of the information regarding the reproduction time, the control unit 12 controls to extract and decode information on the total reproduction time from the reproduction control information of the series that has been downloaded first. If the information about the input reproduction time is greater than or equal to the total reproduction time, the information is reproduced without being separately edited. However, if not, control the decoders so that they can be edited and reproduced. At this time, in the control box, each content is edited at different ratios according to the reproduction control information, and edited and reproduced according to the input time of the input user.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments but should be determined according to the claims.

1 illustrates a conceptual illustration of an IPTV environment in connection with the present invention.

2 is a flowchart illustrating an example of a method of transmitting contents in an IPTV environment according to an embodiment of the present invention.

3 is a flow chart illustrating an example of a method of reproducing a series in an IPTV receiver according to the present invention.

4 is a block diagram of an IPTV receiver constructed in accordance with the present invention.

DESCRIPTION OF REFERENCE NUMERALS

1201; A network interface unit 1202; IP manager

1203; CAS / DRM unit 1204; Service Delivery Manager

1205; Demultiplexer 1206; Audio / video decoder

1207; Display portion 1208; The application control section

1209; Channel manager 1210; Service information decoder

1211; Service discovery manager 1212; Service control manager

1213; System manager 1214; The storage unit

1215; A storage medium control unit 1216; Storage medium

Claims (12)

A method of playing content on an IPTV receiver, Requesting a desired series of a plurality of contents; Downloading the requested series and reproduction control information of the series; Receiving a request related to the playback time of the downloaded series; And And editing and reproducing the contents at different ratios according to the downloaded reproduction control information in order to reproduce the series according to the input reproduction time, Wherein the playback control information includes information defining a number of downloads of each content constituting the series. The method according to claim 1, Wherein the playback control information further comprises information defining a rating of a previous user with respect to each of the content. 3. The method of claim 2, In editing each of the contents, And dividing the content of each content into a plurality of levels based on importance. The method of claim 3, Wherein the importance is determined in consideration of the characteristics of the series. 5. The method of claim 4, Wherein the importance is determined on the basis of whether or not the audio is output, whether the same video signal is present, and whether it is a synopsis of previous contents. delete delete 1. An IPTV receiver for reproducing a series composed of a plurality of contents, A network interface for connecting to a network; A storage unit for downloading and storing playback control information for the series and the series through the network; A user input receiving unit for receiving information on a playback time of the downloaded series; A decoding unit decoding the downloaded series and reproduction control information; A control unit for editing and playing back the downloaded series according to the information on the input playback time and the downloaded playback control information; And And an output unit for outputting the edited and reproduced series under the control of the control unit. 9. The method of claim 8, Wherein, And controls to reproduce by using the reproduction control information further including information defining a rating of a previous user in relation to each of the contents. 10. The method of claim 9, Wherein, Wherein the control unit controls the contents to be edited by dividing the contents of the contents into a plurality of levels based on the importance. 11. The method of claim 10, Wherein, And the importance of the series is determined in consideration of characteristics of the series. 12. The method of claim 11, Wherein, Wherein the priority of the IPTV receiver is determined based on whether the audio is outputted, whether it is the same video signal, and whether it is a plot of the previous contents.

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