JP2018033138A - Digital information receiving device and digital information processing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide device and method capable of improving reproducibility of a program in which a broadcast video and a communication video interlock with each other.SOLUTION: In a video transmission and reception system 1, a video receiving device 10 receives, from a video transmitting device 20, a stream of a first video of a first program through a broadcast wave, and first information set with a first time limit which permits a second content to be reproduced while a stream of the first video is being reproduced to be received from a server through a communication network 40 and reproduced. A process based on the first limit of the received first information is performed.SELECTED DRAWING: Figure 1

Description

  The present embodiment relates to a digital information receiving apparatus and a digital information processing method.

  In recent years, the broadband Internet connection environment has been remarkably widespread in ordinary homes, and VOD (Video On Demand) services for receiving and viewing video content via communication are spreading. As a movement on the extension, there is a broadcasting / communication cooperation service in which a video via communication and a video via broadcasting (related video) are used together to form an integrated program and provide it to viewers. For broadcasting / communication cooperation services, technical studies and standards are being developed for provision.

  Since the broadcasting / communication cooperation service is configured as a program in which the video via broadcasting and the video via communication are integrated in terms of content, a case where the meaning of the program is not defined only by the broadcasting video is assumed.

  When a viewer views a program in real time (viewed at the time of broadcasting), it is ensured by the broadcaster that the video via communication among the videos constituting the program can be acquired from the server.

JP 2006-345495 A

  However, when a viewer wants to view a program after the broadcast ends, the video via communication is not necessarily secured by the broadcaster for reasons such as server management and program right processing.

  Therefore, when the viewer records the program with the receiving device and plays it back after the broadcast ends, the viewer may not be able to acquire the necessary related video via communication. Therefore, the program that does not include the related video is meaningless and may cause viewer confusion.

  To solve this problem, for example, a method in which the receiving apparatus records video via communication in addition to video via broadcast is conceivable. However, this method is not efficient because the receiving device needs to have a larger capacity storage device.

  One of the problems of the present invention is to improve the reproducibility of a program in which broadcast video (broadcast information) and communication video (communication information) are linked.

  A digital information receiving apparatus according to an embodiment is an apparatus used in an information transmission system for broadcast information and communication information, can acquire the communication information via a communication network, and receives the broadcast information from a transmission apparatus It is possible. Here, the information transmitted to the receiving device in the information transmission system includes reproduction control information, and the reproduction control information is included in the broadcast information. The receiving device has means for accessing the reproduction control information, and is configured to perform processing based on the deadline information when the reproduction control information is analyzed to obtain deadline information related to the communication information. .

1 is a schematic block diagram of a video transmission / reception system according to an embodiment. The display screen figure in the video receiver which concerns on embodiment. The figure which shows the video recording process in the video receiver which concerns on embodiment. 6 is a flowchart of program recording processing in the video receiving apparatus according to the embodiment. 6 is a flowchart of a recording title display process in the video reception device according to the embodiment. The display screen figure in the video receiver which concerns on embodiment. The display screen figure in the video receiver which concerns on embodiment.

  Hereinafter, the present embodiment will be described with reference to the drawings. FIG. 1 is a schematic block diagram of a video transmission / reception system 1 according to the present embodiment. The video transmission / reception system 1 includes a video reception system 10, a broadcast transmission device 20, and a program server 30.

  The configuration of the video reception device 10 will be described. The video receiver 10 includes a CPU (Central Processing Unit) 101, a control software ROM (Read Only Memory) 102, a RAM (Random access Memory) 103, a storage unit 104, a clock 105, a broadcast receiving unit 106, a decoder 107, a communication IF ( Interface) 108 and a display unit 109. The video receiving device 10 is a television, for example, but is not limited thereto. The video receiver 10 has a function of receiving video transmitted through broadcast waves (hereinafter referred to as video via broadcast or broadcast video), and video transmitted and received via a communication network (hereinafter referred to as video via communication or communication). It is only necessary to have both functions of receiving a video). In the present embodiment, the communication video is a related video that constitutes a program together with the broadcast video in a program provided by the broadcast communication cooperation service (hereinafter referred to as a broadcast communication cooperation program).

  The CPU 101 controls the operation of each element of the video reception device 10. The CPU 101 includes an acquisition unit 101a, a recording control unit 101b, a display control unit 101c, and a reproduction control unit 101d. The acquisition unit 101a has a function of acquiring various types of information from broadcast waves, as will be described later. As will be described later, the recording control unit 101b has a function of recording and controlling broadcast video. As will be described later, the display control unit 101c has a function of controlling display of various messages. As will be described later, the playback control means 101d has a function of controlling playback of recorded broadcast video. The control software ROM 102 stores a control program that is a processing content executed by the CPU 101. The RAM 103 is a work area necessary for the CPU 101 to execute processing.

  The storage unit 104 functions as a storage unit that stores various types of information. Various information is written to and read from the storage unit 104 by the CPU 101. The clock 105 measures the current date and time. The broadcast receiving unit 106 receives a broadcast wave (also referred to as a broadcast signal or a stream) including a broadcast video constituting a program that is currently being broadcast on the channel selected by the user via the antenna 11. The broadcast receiving unit 106 functions as a receiving unit that receives broadcast video constituting a program. The decoder 107 decodes broadcast video and audio included in the stream. At the time of program recording, broadcast video and audio are recorded in the storage unit 104 by the CPU 101. In the present embodiment, the broadcast video recorded in the storage unit 104 is referred to as a recorded broadcast video.

  The communication IF 108 is an interface that transmits and receives various types of information via the communication network 40. The communication IF 108 receives, from the program server 30, a communication video that configures a program together with a broadcast video (or recorded broadcast video) via the communication network 40. The communication IF 108 functions as a receiving unit that receives communication video.

  The display unit 109 functions as a display unit that displays various types of information. For example, the display unit 109 displays both broadcast video (or recorded broadcast video) and communication video.

The configuration of the video transmission device 20 will be described. The video transmission device 20 is a device provided in a broadcasting station, for example. The video transmission device 20 includes a CPU 201, a control software ROM 202, a RAM 203, a storage unit 204, and a broadcast transmission unit 205.
The CPU 201 controls the operation of each element of the video reception device 20. The control software ROM 202 stores a control program that is a processing content executed by the CPU 201. The RAM 203 provides a work area necessary for the CPU 201 to execute processing. The storage unit 204 stores various information. Various information is written to and read from the storage unit 204 by the CPU 201. The broadcast transmission unit 204 transmits the broadcast video constituting the currently broadcast program via the antenna 21 via the broadcast wave (on the broadcast wave). The broadcast transmission unit 204 functions as a transmission unit that transmits broadcast video constituting the program.

The configuration of the program server 30 will be described. The program server 30 is an apparatus provided in a broadcasting station, for example. The program server 30 is a server that stores communication video that configures a program together with broadcast video (or recorded broadcast video). The program server 30 includes a CPU 301, a control software ROM 302, a RAM 303, a storage unit 304, and a communication IF 305.
The CPU 301 controls the operation of each element of the program server 30. The control software ROM 302 stores a control program that is a processing content executed by the CPU 301. The RAM 303 provides a work area necessary for the CPU 301 to execute processing.

The storage unit 304 stores various information. Various information is written to and read from the storage unit 304 by the CPU 301. As an example, the storage unit 304 stores a communication video.
The communication IF 305 is an interface that transmits and receives various types of information via the communication network 40. The communication IF 305 transmits a communication video to the video receiving device 10 as described later in response to a request from the video receiving device 10.

  Next, a display screen of the broadcast communication cooperation program will be described. FIG. 2 is a display screen diagram in the display unit 109 of the video reception device 10 according to the present embodiment. The display unit 109 displays both the broadcast video (or recorded broadcast video) 51 and the communication video 52. As an example, the broadcast video 51 is a sports broadcast video. The communication video 52 is an additional video such as a multi-angle of a sports broadcast. In addition, although the program shown in FIG. 2 is an example formed only by the broadcast video 51, it is not restricted to this. For example, the communication video 52 may be a video that can be switched between the broadcast video 51 by a user operation, or a video that can be operated by the user and has a game function linked to the broadcast video 51. In this case, the communication video 52 is not a sub of the broadcast video 51 but an essential video equivalent to the broadcast video 51. Therefore, the program is not established only by the broadcast video 51, but is established by combining the broadcast video 51 and the communication video 52.

  Next, a program recording process in the video receiving apparatus 10 according to the embodiment will be described. FIG. 3 is a schematic diagram of program recording processing in the video receiver 10. When the program currently being broadcast is a broadcast communication cooperative program, the CPU 201 of the video transmission apparatus 20 multiplexes and transmits the expiration date information of the communication video related to the broadcast video in the program stream. The expiration date information is, for example, information related to the available time limit of the communication video saved in the storage unit 304 of the program server 30. Note that the expiration date information is multiplexed in the stream for each communication video as an example. In the example shown in FIG. 3, video 1 is a broadcast video that constitutes a program that is currently being broadcast. Video 2 and video 3 are related video of video 1 and are communication videos stored in the storage unit 304 of the program server 30. In the stream, the expiration date information of video 2 and video 3 is multiplexed. Instead of this, or together with this, information indicating the location of the expiration date information (URL information linked to the program server 30 as an example) may be multiplexed in the stream.

  When recording a currently broadcast program, the CPU 101 of the video receiving device 10 performs control so that the video 1 that is a broadcast video included in the stream is recorded in the storage unit 104. The CPU 101 performs control so that the expiration date information of the communication video multiplexed in the stream is recorded in the storage unit 104 in association with the video 1. Note that the CPU 101 receives the video 2 and video 3 which are communication videos composing the program together with the video 1 by the communication IF 108, but does not record and control the video 2 and video 3 in the storage unit 104.

  FIG. 4 is a flowchart of the program recording process. First, the broadcast receiving unit 106 receives a broadcast wave of a currently broadcast program to be recorded (Block 1001). In Block 1001, the broadcast receiving unit 106 receives a broadcast video constituting a program currently being broadcast via a broadcast wave. The CPU 101 reads a service descriptor from the stream (Block 1002). The service descriptor is a descriptor indicating whether or not the program to be recorded is a broadcast communication cooperation program.

Based on the service descriptor, the CPU 101 determines whether or not the program to be recorded is a broadcast communication cooperative program (Block 1003). When the program to be recorded is not a broadcast communication cooperative program (Block 1003, No), the CPU 101 executes a normal recording process (Block 1004). In Block 1004, the CPU 101 performs control so as to record the broadcast video constituting the program to be recorded in the storage unit 104. Further, the CPU 101 performs control so that a recording title (a program name as an example) for specifying a recorded broadcast video corresponding to the broadcast video is added to the recording list and recorded. The recording list is a list of recording titles recorded in the storage unit 104. Further, the CPU 101 controls to record information related to the recorded broadcast video (hereinafter referred to as “recorded title information”) in the storage unit 104.
The recorded title information is information related to the recorded broadcast video, such as a program name, broadcast date and time, presence / absence of related video, presence / absence of expiration date information, and the like.

  When the program to be recorded is a broadcasting / communication cooperation program (Block 1003, Yes), the CPU 101 reads a related video descriptor from the stream (Block 1005). The related video descriptor is a descriptor indicating whether or not there is a communication video that is a related video of the broadcast video.

  The CPU 101 determines whether or not there is a related video in the broadcast video based on the related video descriptor (Block 1006). That is, in Block 1006, the CPU 101 determines whether or not a communication video that configures a program to be recorded separately from the broadcast video exists on the program server 30 based on the related video descriptor. When the related video does not exist in the broadcast video (Block 1006, No), the CPU 101 executes the processing of Block 1004. When the related video exists in the broadcast video (Block 1006, No), the CPU 101 determines whether the expiration date information exists in the stream (Block 1007). The expiration date information may be multiplexed with the related video descriptor, for example.

  When the expiration date information exists in the stream (Block 1007, Yes), the CPU 101 records the broadcast video and records the expiration date information in the recording title information (Block 1008). In Block 1008, the CPU 101 controls to record the broadcast video constituting the recording target program in the storage unit 104. Further, the CPU 101 controls to record a recording title for specifying a recorded broadcast video corresponding to this broadcast video by adding it to the recording list. Further, the CPU 101 acquires communication video expiration date information from the stream. Then, the CPU 101 controls to record the expiration date information in the recorded title information.

When the expiration date information does not exist in the stream (Block 1007, No), the CPU 101 accesses the reproduction control file of the related video (Block 1009). In Block 1009, the CPU 101 accesses the communication video reproduction control file stored in the storage unit 304 of the program server 30 via the communication network 40. As an example, the CPU 101 indicates the location of expiration date information, and acquires URL information (URL information for acquiring expiration date information from the program server 30) for accessing the playback control file from the stream. Note that information indicating where the expiration date information is located is multiplexed in the stream. Then, the CPU 101 accesses the reproduction control file based on the URL information. The CPU 101 acquires expiration date information explicitly described in the reproduction control file from the program server 30. Note that, even if the expiration date information is not explicitly described in the playback control file, the CPU 101 analyzes the HTML of the playback control file and acquires the expiration date information from the program server 30 based on various information, for example. You may make it do.
The CPU 101 determines whether or not expiration date information exists in the playback control file (Block 1010). When the expiration date information exists in the playback control file (Block 1010, Yes), the CPU 101 acquires the expiration date information from the playback control file and executes the processing of Block 1008.

  When the expiration date information does not exist in the playback control file (Block 1010, No), the CPU 101 executes the processing of Block 1004. In other words, the recorded broadcast video recorded in the storage unit 104 includes a related video, but the related video has no expiration date set. Therefore, the CPU 101 can acquire the related video from the program server 30 at any time.

  When the CPU 101 accesses the playback control file for the related video in Block 1009 and accesses the program server 30 in Block 1010 to acquire the expiration date information when the expiration date information exists, the expiration date information is acquired from the playback control file. Not limited to only. The CPU 101 accesses the program server 30 as appropriate, such as at the end of broadcast of the program, when the recording process is completed, or a predetermined period period after the recording process is completed, acquires the expiration date information, and updates the expiration date information recorded in the storage unit 104. You may do it. The broadcast station may change the expiration date information of the communication video stored in the program server 30 after the program broadcast ends. Therefore, the video receiving apparatus 10 can update the expiration date information recorded in the storage unit 104 by following the update of the expiration date information in the program server 30.

Next, display processing of a recorded title in the video reception device 10 according to the embodiment will be described. FIG. 5 is a flowchart of a recording title display process.
First, the CPU 101 acquires a recording list from the storage unit 104 (Block 2001). In Block 2001, the CPU 101 controls the display unit 109 to display the recording list acquired from the storage unit 104 based on a recording list display operation by the user.
The CPU 101 acquires the recording title information of the recording title selected from the recording list (Block 2002). In Block 2002, the CPU 101 selects a specific recording title from the recording list by the user (or an operation for displaying information related to the recorded broadcast video corresponding to the recording title to be selected). Recorded title information is acquired from the storage unit 104.

  The CPU 101 determines whether or not the expiration date information is recorded in the recorded title information (Block 2003). When the expiration date information is not recorded in the recorded title information (Block 2003, No), the CPU 101 controls to display normal title information (Block 2004). In Block 2004, the CPU 101 controls the display unit 109 to display the recording title information of the selected recording title. The recorded title information displayed on the display unit 109 is, for example, information on a program name and broadcast date / time. Note that when expiration date information is not recorded in the recording title information in Block 2003, for example, when there is no related video in the selected recording title, or there is a related video in the selected recording title, but the expiration date is not This is the case when it is not set. The CPU 101 controls to reproduce the recorded broadcast video recorded in the storage unit 104 and display it on the display unit 109 based on the reproduction operation of the recorded title by the user. Alternatively, the CPU 101 synchronizes the recorded broadcast video recorded in the storage unit 104 with the communication video received from the program server 30 by the communication IF 108 based on the user's reproduction operation of the recorded title, and communicates with the recorded broadcast video. A program composed of video is controlled to be reproduced and displayed on the display unit 109.

When expiration date information is recorded in the recording title information (Block2003, Yes), the CPU 101 acquires current date and time information measured by the clock 105 (Block2005). The CPU 101 compares the current date and time information with the expiration date information, and determines whether or not the current date and time is within the expiration date (Block 2006).
When the current date and time is within the expiration date (Block 2006, Yes), the CPU 101 controls to display the expiration date information of the recording title on the display unit 109 (Block 2007). In Block 2007, when the current date and time is within the expiration date, the CPU 101 displays recorded title information including at least expiration date information based on a display operation of information related to the recorded broadcast video corresponding to the recorded title selected by the user. The display unit 109 is controlled to display. FIG. 6 is a display screen diagram of the display unit 109 in Block2007. The CPU 101 controls the display unit 109 to display the recording list 53 and the recording title information 54 of the recording title 3 selected from the recording list 53. The display unit 109 displays as the recording title information 54 that the related video exists in the recording title 3 and that the current date and time is within the expiration date. That is, the CPU 101 can control to display a message that prompts the user to play back and view the recorded title within the effective period. By visually recognizing the expiration date information displayed on the display unit 109, the user can easily know that if the recorded title is reproduced by any time, the program of the recorded title can be completely viewed including the related video. be able to. The CPU 101 synchronizes the recorded broadcast video recorded in the storage unit 104 and the communication video received from the program server 30 by the communication IF 108 based on the user's operation for reproducing the recorded broadcast video corresponding to the recorded title 3. The program composed of the recorded broadcast video and the communication video is reproduced and controlled to be displayed on the display unit 109.

  Returning to FIG. 5, when the current date and time is not within the expiration date (Block 2006, No), the CPU 101 determines whether or not the related video is essential (Block 2008). Note that information regarding whether or not related video is essential may be multiplexed or arranged in a stream. The CPU 101 may acquire information on whether or not the related video is essential during the recording process and record the information in the recording title information. Then, the CPU 101 can determine whether the related video is essential based on the information recorded in the recorded title information.

  When the related video is indispensable (Block 2008, Yes), the CPU 101 controls to display a message indicating that the selected recording title is not available on the display unit 109 (Block 2009). In Block 2009, when the current date is not within the validity period and the related video is essential, the CPU 101 controls to display at least a message indicating that the communication video is not available on the display unit 109. FIG. 7 is a display screen diagram of the display unit 109 in Block2009. The CPU 101 controls the display unit 109 to display the recording list 53 and the recording title information 54 of the recording title 2 selected from the recording list 53. In addition to the title information 54, the display unit 109 displays a message that there is a possibility that the recorded title may not be correctly reproduced because the related video that is essential even if this recorded title is reproduced cannot be viewed. By visually recognizing this message displayed on the display unit 109, the user does not perform a wasteful reproduction operation.

  When the related video is not essential (that is, when the related video is an additional video of the recorded broadcast video) (Block 2008, No), the CPU 101 displays a message that the related video of the selected recording title is unavailable. Control is performed so as to display on the display unit 109 (Block 2010). In Block 2010, the CPU 101 controls the display unit 109 to display a message indicating that the communication video cannot be used when the current date is not within the expiration date and the related video is not essential. The CPU 101 controls playback of the recorded broadcast video recorded in the storage unit 104 and displays it on the display unit 109 based on the playback operation of the recorded title by the user. Since the related video has expired, the CPU 101 does not acquire the related video from the program server 30 via the communication IF 108. By visually recognizing this message displayed on the display unit 109, the user can easily know that the related video cannot be viewed.

  According to this embodiment, the user can recognize that the program to be recorded is a broadcast communication cooperative program. Furthermore, the user can know the expiration date when the related video of the broadcast communication cooperation program exists on the program server 30. Therefore, the user can connect to the action of viewing the recorded title within the expiration date. As a result, the user can avoid the occurrence of a situation in which the recorded title that the user is willing to watch can be seen only incompletely or not at all.

Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.
<Appendix corresponding to initial claim>
[1] An apparatus used in an information transmission system for broadcast information and communication information, wherein the communication information can be acquired via a communication network, and the broadcast information can be received from a transmission apparatus. The information transmitted to the receiving device in the information transmission system includes playback control information, the playback control information is included in the broadcast information, and the receiving device has means for accessing the playback control information, and the playback A digital information receiving apparatus that performs processing based on the deadline information when the deadline information related to the communication information is acquired by analyzing the control information.
[2] A method used in a reception device that is used in an information transmission system for broadcast information and communication information, can acquire the communication information via a communication network, and can receive the broadcast information from a transmission device, In the case where information transmitted to the receiving device in the information transmission system includes playback control information, the playback control information is included in the broadcast information, and the receiving device has means for accessing the playback control information. A digital information processing method for analyzing the reproduction control information and performing processing based on the time limit information when time limit information about the communication information is acquired.
<Additional note corresponding to claim of parent application>
[11] A video transmission device including a transmission unit configured to transmit a first video stream of a first program via a broadcast wave, wherein the transmission unit reproduces the first video stream. A video transmission device for transmitting the first information set with a first time limit that can be received and reproduced from the server via the communication network for the second content to be reproduced when the broadcast wave is transmitted .
[12] The transmission unit according to [11] further broadcasts a URL used for receiving and playing back the second content from the server when playing the first video stream. Send it in a wave.
[13] The transmission unit of [11] or [12] further reproduces the third video stream when transmitting the third video stream of the second program via the broadcast wave. The second content set with a second deadline that can be received from the server via the communication network and played back is transmitted in the broadcast wave. To do.
[14] A video broadcast method for broadcasting a first video stream of a first program via a broadcast wave, which is to be played back when the first video stream is being played back. A video transmission method of transmitting the first wave information including a first time limit that can be received from a server via a communication network and played back in a broadcast wave.
[15] In [14], a URL used for receiving and reproducing from the server when the first video stream is being reproduced is included in the broadcast wave and transmitted.
[16] [14] should be reproduced when the third video stream of the second program is transmitted via the broadcast wave and when the third video stream is being reproduced. The broadcast wave includes and transmits the second information in which a second time limit is set so that the fourth content can be received and reproduced from the server via the communication network.

  DESCRIPTION OF SYMBOLS 1 ... Video transmission / reception system, 10 ... Video reception apparatus, 11 ... Antenna, 20 ... Video transmission apparatus, 21 ... Antenna, 30 ... Program server, 40 ... Communication network, 51 ... Broadcast video, 52 ... Communication video, 53 ... Recording list 54 ... Recorded title information 101 ... CPU 102 ... Control software 103 ... RAM 104 ... Storage unit 105 ... Clock 106 ... Broadcast receiving unit 107 ... Decoder 108 108Communication IF 109 ... Display unit 201 ... CPU, 202 ... control software ROM, 203 ... RAM, 204 ... storage unit, 205 ... broadcast transmission unit, 301 ... CPU, 302 ... control software ROM, 303 ... RAM, 304 ... storage unit, 305 ... communication IF.

Claims (2)

In an apparatus used in an information transmission system for broadcast information and communication information, the communication information can be acquired via a communication network, and the broadcast information can be received from a transmission apparatus.
The information transmitted to the receiving device in the information transmission system includes reproduction control information,
The reproduction control information is included in the broadcast information,
The receiving device has means for accessing the reproduction control information;
A digital information receiving apparatus that performs processing based on the deadline information when the reproduction control information is analyzed to obtain deadline information related to the communication information. A method used in an information transmission system for broadcast information and communication information, capable of acquiring the communication information via a communication network, and used in a receiving apparatus capable of receiving the broadcast information from a transmitting apparatus,
In the case where information transmitted to the receiving device in the information transmission system includes playback control information, the playback control information is included in the broadcast information, and the receiving device has means for accessing the playback control information. ,
A digital information processing method for performing processing based on the time limit information when the reproduction control information is analyzed and time limit information about the communication information is acquired.

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