WO2009145182A1 - Dispositif de terminal de réception de service d'image, procédé de commande, programme d'ordinateur et serveur de recherche - Google Patents

Dispositif de terminal de réception de service d'image, procédé de commande, programme d'ordinateur et serveur de recherche Download PDF

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Publication number
WO2009145182A1
WO2009145182A1 PCT/JP2009/059595 JP2009059595W WO2009145182A1 WO 2009145182 A1 WO2009145182 A1 WO 2009145182A1 JP 2009059595 W JP2009059595 W JP 2009059595W WO 2009145182 A1 WO2009145182 A1 WO 2009145182A1
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WO
WIPO (PCT)
Prior art keywords
media
content
description
specific
activation description
Prior art date
Application number
PCT/JP2009/059595
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English (en)
Japanese (ja)
Inventor
洋平 猪口
正晴 安食
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株式会社Access
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Publication date
Application filed by 株式会社Access filed Critical 株式会社Access
Priority to JP2010514490A priority Critical patent/JPWO2009145182A1/ja
Publication of WO2009145182A1 publication Critical patent/WO2009145182A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/16—Arrangements for conditional access to broadcast information or to broadcast-related services on playing information
    • 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
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
    • 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
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/4143—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a Personal Computer [PC]
    • 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
    • H04N21/440263—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 by altering the spatial resolution, e.g. for displaying on a connected PDA
    • 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
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand

Definitions

  • the present invention relates to a video service receiving terminal device having a broadcast receiving function, a control method thereof, a computer program, and a search server accessed from the video service receiving terminal device.
  • terrestrial digital television broadcast receivers have become widespread, and mobile phone terminals equipped with a so-called one-segment broadcast reception function have also become popular.
  • a mobile phone terminal having such a television broadcast receiving function the user can watch the television broadcast at any desired time while away from home or while traveling. In other words, it has become possible to view a TV broadcast anytime and anywhere in a region where broadcast radio waves reach.
  • the recommended information related to the TV program recommended by the user is notified to other viewers by e-mail using the mobile terminal, and the TV program that the viewer has viewed on the receiving device is recommended by the recommended information.
  • a technique for supporting a process of switching to a program has been proposed (see Patent Document 1).
  • broadcast programs having substantially the same content are broadcast on different media, for example, one-segment broadcasting for mobiles of terrestrial digital broadcasting and full-segment broadcasting for fixed use.
  • a medium such as a television or a radio
  • a media activation description including broadcast station identification information and information for specifying a broadcast program is included in the body of an e-mail or the like, and the user activates the media activation description by an application using the media activation description. It is convenient if the media can be activated in accordance with the media activation description according to the user's instruction by presenting it to the user so that it can be instructed.
  • Such a media activation description is suitable for use in a mobile phone terminal having both a communication function and a television broadcast receiving function.
  • the media activation description becomes invalid.
  • the present invention has been made in such a background, and an object thereof is to make it possible to specify and play back specified content regardless of the type of media specified in a given media activation description. .
  • a video service receiving terminal device includes a content reception / playback unit for receiving and playing back content provided by a specific medium, and a media activation unit for starting the content reception / playback unit in accordance with a given media activation description.
  • the media activation means causes the content reception / reproduction means to activate the media when it is determined that the media specified in the given media activation description matches the specific media. If it is determined that the content does not match the specific media, based on the given media activation description, it is determined whether substantially the same content is provided on the specific media. When it is confirmed that the content is provided on the specific medium, Characterized in that to perform the activation for the media.
  • the video service receiving terminal device receives a media activation description for a medium different from the specific medium that can be received and reproduced by its own content reception / playback means, the content having substantially the same content is the specified content.
  • the content reception / playback means can play back the content.
  • the media activation means includes a means for converting a media activation description for a medium other than the specific medium into a media activation description for the specific medium, and a means for interpreting and executing the media activation description.
  • the media activation unit may store a correspondence table that defines a correspondence relationship of contents between different media, and obtain information for identifying the content on the specific medium based on the correspondence table. it can.
  • the media activation means transmits the given media activation description and information of the terminal to a predetermined search server, and obtains information specifying the content on the specific medium from the search server. Also good.
  • the specific medium is, for example, one of terrestrial digital broadcasting, one segment broadcasting or full segment broadcasting.
  • the specific medium may further include at least one of media capable of acquiring content in accordance with VOD (Video On Demand), IP broadcasting, and DLNA (Digital Living Network Alliance) standards.
  • VOD Video On Demand
  • IP broadcasting IP broadcasting
  • DLNA Digital Living Network Alliance
  • the control method is a method for controlling content reception / playback means for receiving and playing back content provided by a specific medium, and a medium specified by a given media activation description is assigned to the specific medium.
  • the present invention also includes a computer program that causes a computer to execute such steps, and a recording medium that records such a program in a computer-readable manner.
  • a search server is a search server accessed from a video service receiving terminal device provided with content receiving / playing means for receiving and playing content provided by a specific medium, and is provided from the video service receiving terminal device.
  • the present invention it is possible to specify and play the specified content regardless of the type of media specified in the given media activation description. As a result, it is possible to prevent the media activation description from becoming invalid due to a difference in media, and to promote the wide use of the media activation description.
  • FIG. 2 is a diagram illustrating a schematic hardware configuration example of a terminal illustrated in FIG. 1. It is explanatory drawing of the service transmission model of terrestrial digital broadcasting. It is the figure which showed the structural example of the channel list
  • EPG electronic program guide
  • FIG. 1 shows a schematic configuration of a system including a video service receiving terminal device (also simply referred to as a terminal) in the present embodiment.
  • a video service receiving terminal device also simply referred to as a terminal
  • a terminal 20a such as a mobile phone and a terminal 20b such as a personal computer (PC) have a function of receiving and reproducing TV broadcasts using different media capable of receiving substantially the same broadcast program.
  • different media are, for example, one-segment (abbreviated as one-segment) broadcast and full-segment (abbreviated as full-segment) broadcast of terrestrial digital broadcasting.
  • the different media may include other media such as media capable of acquiring content in conformity with satellite broadcasting, IP broadcasting, VOD, and DLNA standards.
  • the “content” in the present invention is data representing information that can be visually and / or audibly recognized by the user, in addition to broadcast programs, as well as any of these media.
  • Terminal 20a and terminal 20b receive broadcasts from broadcast stations 30a and 30b.
  • the broadcasting stations 30a and 30b may have different regions belonging to the same region or different regions.
  • Each of the broadcasting stations 30a and 30b can broadcast a program having the same content by one-segment broadcasting and full-segment broadcasting. Further, it is assumed that the broadcast station 30a and the broadcast station 30b can broadcast a program having the same content on the same medium or different media as a so-called affiliate broadcast station.
  • terminals 20a and 20b are collectively referred to as the terminal 20 (the same applies to other reference numbers).
  • Each terminal 20 can be connected to the Web server 40, the search server 50, the information server 60, and the content server 65 via the communication network 10.
  • the communication network 10 includes an arbitrary network that can include a mobile phone network, a packet network, the Internet, a LAN, a network conforming to the DLNA standard, and the like.
  • At least one of the terminals 20a and 20b is provided with a camera unit (not shown in FIG. 1) as a photographing unit for acquiring digital image data, and captures and interprets a two-dimensional code 70 such as a QR code, and starts the media. Can be extracted.
  • the media activation description is a terminal that can receive broadcast content such as a television or radio, and defines information required when the television or radio application is activated from another application. Specific specifications will be described later.
  • the Web server 40 is a server that provides the terminal with document data described in a markup language such as html that constitutes a Web page in response to a request from the terminal 20 in accordance with the http protocol.
  • a media activation description can be included as an anchor tag for setting a link in the document data.
  • the content server 65 is a server having a function of accumulating content and delivering content specified in response to a request from a client.
  • “Content server” includes a Web server in a broad sense, but in the present embodiment, a content that can be acquired in accordance with VOD or DLNA standards and that stores content such as video data to be provided. Assumed.
  • the search server 50 is a server that provides a service for searching for program specific information and returning it in response to a search request for program specific information from a terminal, as will be described later.
  • the content server can also serve as a search server.
  • the information server 60 is an information server 60 that provides a service for simultaneously distributing information such as news and weather forecasts to a plurality of mobile phone terminals by using, for example, BCMCS (Broadcast / Multicast Services) technology. Such information can also include a media activation description.
  • BCMCS Broadcast / Multicast Services
  • the network 10 includes a mail server that performs an intermediary process for transferring an electronic mail (hereinafter also simply referred to as mail).
  • mail an electronic mail
  • the mail in the present embodiment may also include a so-called short message that uses the telephone number of the partner terminal as the partner address.
  • the network 10 includes a message server that performs mediation processing of short message transfer.
  • the terminal has a digital data broadcast reception function
  • FIG. 2 shows a schematic hardware configuration example of the terminal 20.
  • the terminal 20 includes a central control unit 201, a RAM 202, a ROM 203, a display control unit 204, a display unit 205, a communication unit 206, an operation unit 207, a flash memory 208, a clock unit 209, a recording / playback unit 210, a broadcast receiving antenna 211, A broadcast receiving unit 212, an audio processing unit 213, a microphone 214, a speaker 215, and a camera unit 216 are provided. As described above, depending on the terminal, either of these elements may be missing, or another element may be included.
  • Central control unit 201, RAM 202, ROM 203, display control unit 204, communication unit 206, operation unit 207, flash memory 208, clock unit 209, recording / playback unit 210, broadcast reception unit 212, audio processing unit 213, and camera unit 216 are buses. 217 are connected to each other, and exchange of data and transmission / reception of commands are performed via this bus 217.
  • the RAM 202 is a memory that temporarily holds and stores calculation results of the central control unit 201 and data acquired from the outside.
  • the ROM 203 is a non-volatile memory that stores an operating system (OS), various programs, and fixed data.
  • the central control unit 201 reads out these programs from the ROM 203 and executes predetermined processing according to the programs.
  • the flash memory 208 is a rewritable nonvolatile memory that retains data acquired from the outside, information such as an email address, URL (Uniform Resource Locator), and the like for later processing.
  • the communication unit 206 has a function of establishing a connection with the network 10 and transmitting / receiving data to / from the network 10.
  • the operation unit 207 includes a numeric keypad and various instruction keys, and provides a user input interface.
  • the display control unit 204 has a function of receiving display information such as text and images from the central control unit 201 and driving the display unit 205 based on the received display information. As display information from the outside, it is possible to switch or overlap and display both information via the network and information by broadcasting.
  • the display unit 205 includes an arbitrary display device such as a liquid crystal device or an organic EL device, and has a function of optically displaying an image in accordance with a drive signal from the display control unit 204.
  • the clock unit 209 includes a real-time clock and provides functions of a calendar, a clock, and a timer.
  • the broadcast receiving unit 212 has a function of extracting a signal of a desired channel from a broadcast wave received by the antenna 211 and demodulating and reproducing the television broadcast.
  • the broadcast receiving unit 212 includes a browser function for interpreting and displaying a document described in a BML (Broadcast Markup Language) language by digital data broadcasting.
  • the broadcast receiving unit 212 may include a radio broadcast receiving unit in addition to a television broadcast.
  • the recording / playback unit 210 has a function of recording and playing back the broadcast content received by the broadcast receiving unit 212.
  • a recording storage unit a RAM 202, a flash memory 208, a small HDD (not shown), or the like can be used.
  • the “content reception / reproduction means” of the invention is configured.
  • the “media activation means” of the present invention is realized by executing a program of the central control unit 201 (for example, media activation description applications 92 and 93 and a media activation description module 95a described later in FIG. 9).
  • the sound processing unit 213 performs processing for outputting sound from the speaker 215 and converting input sound from the microphone 214 into a predetermined signal.
  • the camera unit 216 is a photographing unit for acquiring digital image data.
  • the internal configuration of the Web server 40, the search server 50, the information server 60, and the content server 65 shown in FIG. 1 is not particularly shown, but is a computer device having a central control unit, a communication unit, a storage device, and various input / output devices. .
  • the terminal may include other functional units such as a global positioning system (GPS) receiving unit and a music playback unit (not shown).
  • GPS global positioning system
  • music playback unit not shown.
  • the frequency for terrestrial digital broadcasting includes physical channels from 13 ch (470 MHz) to 62 ch (770 MHz).
  • Terrestrial digital broadcasting is performed using 13 of 14 transmission segments having a width obtained by equally dividing a channel width of 6 MHz of 14 channels (the remaining 1 segment serves as a guard band for avoiding interference with adjacent channels). 12 out of 13 transmission segments are used for broadcasting on the premise of fixed reception, and the remaining one segment is used for broadcasting on the premise of mobile reception.
  • a stream (fixed-length packet sequence) in which video, audio, and additional data are multiplexed is transmitted in the format of a transport stream (TS) defined by the MPEG-2 system.
  • the One NIT Network Information Table
  • the frequency, remote control ID (remote control selection button number), and service ID (up to 3) are described in the NIT.
  • a plurality of contents can be broadcast simultaneously on the same frequency channel of the same broadcasting station, and information for identifying these services is a service ID.
  • the service ID identifies the PMT PID (Packet IDentifier). In the PMT, PIDs such as video and audio constituting the program are described.
  • FIG. 4A and 4B show a channel list 300a or 300b that can be used in the present embodiment as a correspondence table that defines the correspondence of contents between different media in the present invention
  • FIG. A configuration example of an electronic program guide (EPG) 400 is schematically shown in a table format.
  • EPG electronic program guide
  • the channel list 300a or 300b will be collectively referred to as the channel list 300 unless they are particularly distinguished from each other.
  • the channel list 300a in FIG. 4A includes a frequency (that is, a physical channel number) of a service of a plurality of broadcasting stations that can be received for each region such as Kanto, Chukyo, and Kinki, a broadcasting station name (a broadcasting company name), A remote control ID, a service ID (SID: service_id), a series ID (affiliation_id), and the like are described. These sets of elements are stored in association with one-segment and full-segment segments.
  • NID network ID
  • the channel list 300 of such a plurality of regions is stored in advance in a memory (for example, the flash memory 208).
  • a receivable broadcast is received by changing the area or periodically scanning the frequency, and the contents of the channel list 300 are acquired and stored in the memory. It is preferable to update this content appropriately thereafter.
  • the network ID (network identification; network_id) is a value calculated by the following formula as defined in ARIB TR-B14 “terrestrial digital television broadcast operation rules”.
  • network_id 0x7FF0-0x0010x Regional identification + Regional business operator identification (service_id)-0x400x Multi-country flag ## (1)
  • Prefectural compound flag refers to a flag used to indicate one or two TSs in the region and to indicate whether the TS is the first TS or the second TS in the case of 2 TS.
  • the area identification indicates the broadcasting area of the broadcasting station.
  • the network_id can be obtained from Equation (1) based on the service_id in the media activation description and the region identification of the current region of the mobile phone terminal.
  • network_id 7FE0 is obtained.
  • a correspondence list between network_id (one) and service_id (one or more) may be used.
  • the current region to which the terminal belongs is determined based on the EPG of the region received from the broadcasting station on the spot, the location search service using the mobile phone network is used, or the global positioning system (GPS) is received. This can be confirmed by using a part (not shown).
  • the channel lists 300a and 300b in FIGS. 4A and 4B it is also possible to use a channel list that includes all items of both channel lists, that is, includes both SID and NID.
  • the EPG 400 shown in FIG. 4C includes a one-segment EPG 400a and a full-segment EPG 400b.
  • the EPG 400 is electronic program guide data that is sequentially and periodically received by broadcast waves (or via a network) and held in a memory (for example, the RAM 202 or the flash memory 208). It shows whether such a program is broadcast.
  • FIG. 5A shows the syntax (format) of the media activation description used in this embodiment
  • FIG. 5B shows an example of the media activation description
  • the media activation description is composed of an identifier (“media:” media colon) indicating a media activation description, a broadcaster, and options (Options).
  • the broadcaster includes identification information (MediaType) and country code of the target media (TV, radio, etc.).
  • MediaType for example, “xxxoneseg” indicating one-segment broadcasting, “xxxfullseg” indicating full-segment broadcasting, or the like can be designated.
  • “option” includes physical channel (p_channel), service ID (service_id), service ID list (service_id_list), start date / time (stime), end date / time (etime), title (title), broadcast station A series ID (affiliation_id) is defined.
  • FIG. 5 (b) shows a specific example of the media activation description.
  • the sequence ID (affiliation_id) of the broadcasting station will be described.
  • the affiliates are divided into highly relevant groups of broadcasting stations all over Japan.
  • Japan NHK General, NHK Education, Nippon Television Network, Tokyo Broadcasting, Fuji Television, TV Asahi, TV Tokyo, etc.
  • National broadcast programs are often broadcast from key stations via broadcast stations belonging to the same series.
  • the service IDs of the broadcasting stations for each series are associated with each other and stored in the memory in the terminal 20.
  • FIG. 7A shows a specific example in which a media activation description is included in an anchor tag that can be included in a document described in a markup language such as HTML that constitutes a Web page, a mail message, or the like.
  • the media activation description 51 is described in a predetermined document (for example, an email received document or a Web page)
  • a predetermined document for example, an email received document or a Web page
  • an application such as a mailer or a browser that interprets the document
  • the anchor tag of the media activation description is interpreted, and the anchor point (link) 52 is displayed on the display screen as shown in FIG.
  • the application executes a predetermined operation.
  • the media the television 53 in the figure
  • start up and display the specified channel As a result, the designated program is received and reproduced.
  • a screen for accepting a recording reservation or a viewing reservation for the program may be displayed.
  • the reservation information is automatically set for a scheduler (not shown).
  • the start date and time of the designated program may be displayed and the process may be terminated.
  • the arrival of the start date and time may be monitored, and an alarm display or the like may be performed immediately before the user.
  • a predetermined message such as “This program has ended” may be displayed as shown in FIG.
  • the media activation description is not limited to e-mails and Web pages, but can also be included in received information such as news and two-dimensional codes to be photographed as shown in FIG. Therefore, the function for processing the media activation description of the present invention can be included in the application for processing the received information and the two-dimensional code.
  • the media specified in the media activation description given to the terminal may not be the media that can be received and played back by itself. Processing in such a case will be described with reference to examples of display screens shown in FIGS.
  • FIG. 8 (a) shows an example in which a media activation description 52a designating full-segment broadcasting is given to a terminal that supports one-segment broadcasting but does not support full-segment broadcasting.
  • the terminal interprets the one-seg broadcasting media activation description 52a, performs full-seg / one-seg conversion processing 53a, identifies the corresponding one-seg broadcast program, and can view the program with the one-seg TV application 54a. Next, it controls its own terminal.
  • FIG. 8 (b) shows an example in which a media activation description 52b designating one-segment broadcasting is given to a terminal that supports full-segment broadcasting but does not support one-segment broadcasting.
  • the terminal interprets the media activation description 52b for full-segment broadcasting, performs one-segment / full-segment conversion processing 53b, identifies the corresponding full-segment broadcasting program, and can view the program with the full-segment TV application 54b. Next, it controls its own terminal.
  • FIGS. 9A, 9B, and 9C show three types of media activation description processing in the terminal according to the present embodiment.
  • FIGS. 9A, 9B and 9C show the first, second and third modes, respectively.
  • the media activation description applications 92 and 93 are interposed.
  • the media activation description application 92 interprets and executes the media activation description conversion unit 92a that converts the media activation description extracted by the other application 94, and the media activation description after conversion, thereby converting the media (this example)
  • the media activation description conversion unit 92a is a means for converting a media activation description for a medium other than the specific medium into a media activation description for the specific medium.
  • the media activation description application 93 includes a media activation description interpreter 93a that interprets the media activation description received from the other application 94, corrects the interpretation result as necessary, and activates the TV application 91.
  • the difference between the media activation description application 92 and the media activation description application 93 is that the former converts the media activation description itself to generate a new media activation description of the same format, whereas the latter converts the media activation description application after conversion. Is obtained, and the interpretation result of the converted media activation description is substantially the same.
  • the media activation description application 92 or 93 is incorporated as a media activation description module 95a into other applications such as a browser and a mailer. Such an application is shown as another application 95.
  • the “module” is assumed to be a software element in the application.
  • the media activation description application 92 or 93 is incorporated as a module on the TV application 91 side.
  • FIG. 10 shows a flowchart of control for processing the media activation description offline (locally) in the terminal. This process corresponds to the process executed by the media activation description application 92 or 93 or the media activation description module 95a of FIG.
  • the channel selection information check is to confirm whether or not the broadcast of the program specified in the media activation description can be received. If reception is possible, that is, if the result of the channel selection information check is OK, execution processing of the media activation description is performed (S19). A detailed example of this process will be described later.
  • the broadcast area of the program specified in the media activation description may be different.
  • the physical channel (frequency) used for broadcasting may vary depending on the region.
  • there is no regional boundary for broadcasting such as e-mail and Web contents. Therefore, there arises a problem that a person who receives a media activation description across a regional boundary by communication or the like cannot activate the media as intended according to the media activation description. Therefore, it is checked based on the local DB 81 whether the program specified in the media activation description can be received in another area (S14).
  • the media activation description is converted (for example, the channel and service ID are changed) (S15), and the process proceeds to step S19.
  • the conversion of the media activation description includes not only the conversion of the media activation description itself as shown in FIG. 9A but also the conversion of the substantial contents as shown in FIG. 9B.
  • step S14 If it is not receivable in another area in step S14, an error display is performed or the user is left with content selection (S18).
  • step S16 an alternative media check is performed (S16).
  • “alternative media check” is confirmation of whether content having substantially the same content as a program broadcast on a certain medium is also provided on another medium. In this case, the check of whether it is another area explained in step S14 is included. The determination in step S16 can also be performed with reference to the local DB 81.
  • step S17 the media activation description is converted (for example, the channel or service ID is changed) (S17), and the process proceeds to step S19. If the alternative media check is NG, the process proceeds to step S18 to entrust the user with content selection.
  • the program start time stime and end time etime do not change. However, if the broadcast times of the program before and after conversion are different, the start time stime and end time etime are set. Also change. In addition, there may be a case where there is no start time and end time for a media activation description that performs immediate activation, such as a service that complies with VOD and DLNA standards.
  • FIG. 11 shows a flowchart of control for processing the media activation description by accessing the search server 50 (FIG. 1) at the terminal (that is, online).
  • This process also corresponds to the process executed by the media activation description application 92, 93 or the media activation description module 95a of FIG. In this case, it is not necessary to hold the local DB 81 in the terminal.
  • the media activation description is executed (S30). A detailed example of this process will be described later.
  • the search server 50 is accessed to check whether the program specified in the media activation description can be received in another area (S24). If reception is possible in another area, the media activation description is converted (for example, the channel and service ID are changed) (S25), and the process proceeds to step S30.
  • the conversion of the media activation description includes not only the conversion of the media activation description itself as shown in FIG. 9A but also the substantial content conversion as shown in FIG. 9B.
  • step S24 If it is not possible to receive in another area in step S24, an error display is performed or the user is left to select content (S31).
  • the search server is accessed for an alternative media check (S26).
  • the received media activation description and terminal information are transmitted to the search server.
  • the “corresponding service” is a medium or the like that the terminal supports.
  • this compatible service can include services that comply with VOD and DLNA standards that can be used (for example, a video distribution service).
  • Broadcast media may include IP broadcast by communication in addition to broadcast by radio waves.
  • the terminal receives a response from the search server 50 (S27), and when necessary information is obtained (S28, Yes), performs a predetermined media activation description conversion (for example, changing the channel or service ID). (S29)
  • the process proceeds to step S30 to execute the media activation description.
  • the alternative medium is VOD
  • the response from the search server 50 includes a VOD URL (Uniform Resource Locator) that specifies the content in the content server.
  • VOD URL Uniform Resource Locator
  • the media type as shown in FIG. 5 is expanded (media access instruction by VOD URL) so that the moving image database can be specified.
  • step S31 If it is determined by the response from the search server that the alternative media check cannot be performed, the process proceeds to step S31, and the user is left with content selection.
  • the local DB and the search server are selectively used according to the check target (for example, processing step) or according to a predetermined condition.
  • the search server 50 includes a program DB 82.
  • the program DB 82 contains data such as EPG data, program name, region, service ID, channel (Ch) number, VOD URL, pay / free, real-time / accumulation, content list, etc. for various programs. .
  • the search server 50 receives the terminal information (S41). Therefore, the program DB 82 is referenced to identify the program from the media activation description (S42). Further, a service that can be supported by the terminal is selected from the program, the region of the terminal, and the corresponding service (S43). Next, information necessary for switching to a service compatible with the terminal is returned to the terminal (S44). This information is used in the media activation description conversion as described above in the terminal.
  • FIG. 12 is a flowchart showing an example of execution processing of the media activation description in the terminal 20 of the present embodiment.
  • the terminal 20 first checks whether or not “time” is specified (S52). If “time” is specified and the date / time is in the future, the presence / absence of "time” is checked (S53). If “time” is specified and it is later than “time”, the channel and date / time are registered in the scheduler (S54), and a predetermined reservation screen as shown in FIG. 7C, for example, is displayed. The program is displayed and a viewing reservation (or recording reservation) is made for the program (S55). There is a designation of “time”, but if it is earlier than “time”, it is an erroneous description of the activation description, and if there is no designation of “time”, there is only incomplete information in the reservation process. EPG information (if any) is presented to the user and a reservation process or the like based on the user's instruction is performed (S56).
  • step S52 if “time” is specified but it is past from the present, or if “time” is not specified, it is checked whether “time” is specified (S57). If “time” is specified and it is later than “time”, or if “time” is not specified, a process of immediately starting the TV application (TV application) is executed (S58). Either the process of step S58 is automatically performed or the confirmation of the user is performed. If “time” is specified in step S57 but it is in the past from the present time, for example, a notification screen as shown in FIG. 7D is displayed and the TV viewing time-out process is executed (S59).
  • the television is targeted as a medium, but it may include the activation of a medium such as a service complying with the above-mentioned VOD and DLNA standards.
  • a medium such as a service complying with the above-mentioned VOD and DLNA standards.
  • VOD and DLNA standards For services compliant with the VOD and DLNA standards, it is usually possible to start immediately.
  • the media activation description acquired from the outside of the terminal may be obtained by any means or medium other than the above.
  • the terminal When a terminal uses a channel list using a network ID, the terminal obtains the network ID based on the service ID found in the media activation description. However, the network ID itself can be included in the media activation description. It is.
  • sequence ID information in which the service IDs of a plurality of broadcasting stations are associated with one sequence ID is stored as belonging to the same sequence.
  • Means may be provided in the terminal.
  • the terminal activates the broadcast receiving unit based on the media activation description, if neither the service ID nor the service ID list is described in the media activation description,
  • a physical channel to be selected can be specified based on physical channel information corresponding to a service ID belonging to the sequence ID.
  • the present invention can be used for the development and manufacture of video service receiving terminal devices and various servers, and various services.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Selon l'invention, un contenu désigné peut être spécifié indépendamment du type de contenu multimédia désigné dans la description de démarrage de contenu multimédia donnée. Le moyen de démarrage de contenu multimédia d'un terminal démarre le contenu multimédia dans le moyen de réception et de reproduction de contenu de celui-ci lorsque le contenu multimédia désigné dans la description de démarrage de contenu multimédia donnée à partir de l'extérieur est déterminé correspondre au contenu multimédia spécifique correspondant. S'il est déterminé qu'il n'y a pas de correspondance avec le contenu multimédia spécifié, il est établi si un contenu essentiellement identique est fourni ou non par le contenu multimédia spécifié sur la base de la description de démarrage de contenu multimédia donnée. S'il est établi que ce contenu est fourni par le contenu multimédia spécifié, le démarrage du contenu multimédia est effectué par le moyen de réception et de reproduction de contenu.
PCT/JP2009/059595 2008-05-27 2009-05-26 Dispositif de terminal de réception de service d'image, procédé de commande, programme d'ordinateur et serveur de recherche WO2009145182A1 (fr)

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