JP2019092227A - Video receiving device, video receiving method, video transmitting device, and video transmitting method - Google Patents

Abstract

To provide a video receiving device, video receiving method, video transmitting device, and video transmitting method that improve the reproducibility of a program in which broadcast video and communication video are linked.SOLUTION: The video receiving device in a present embodiment has a function of displaying communication video and broadcast video in association with each other. A broadcast wave stream including the broadcast video includes related video information and information on broadcast and communication association. The related video information includes expiration date information and information on association of the communication video, and the expiration date information indicates a time limit related to availability of the communication video. The video receiving device extracts the expiration date information from a received broadcast wave stream and receives the communication video on the basis of the expiration date information.SELECTED DRAWING: Figure 4

Description

  The present embodiment relates to an image receiving apparatus for receiving an image, an image receiving method, an image transmitting apparatus, and an image transmitting method.

  In recent years, the spread of the broadband Internet connection environment to ordinary homes is remarkable, and a VOD (Video On Demand) service for receiving and viewing video contents via communication is spreading. As a movement on the extension, there is a broadcast communication cooperation service in which a video through communication and a video through broadcast (related video) are used in combination to construct an integrated program and provide it to a viewer. With regard to the broadcast and communication cooperation service, technical studies and standards for the provision are in progress.

  Since the broadcast communication cooperation service is configured as a program in which the video via broadcast and the video via communication are integrated as a content, it is assumed that the video via broadcast alone does not make sense of the program.

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

JP, 2006-345495, A

  However, when the viewer tries to view the program after the end of the broadcast, the video via communication is not necessarily secured by the broadcaster because of server management, right processing of the program, and the like.

  Therefore, the viewer may not be able to acquire the necessary related video via communication when the program is recorded by the receiving device and played back and viewed after the end of the broadcast. Therefore, the program that does not include the related video is meaningless and may cause viewer confusion.

  To address this problem, for example, a method may be considered in which the receiving apparatus records video via communication in addition to video via broadcast. However, this approach is not efficient as the receiver needs to be equipped with a larger capacity of storage.

  An object of the present invention is to provide a video receiving apparatus, a video receiving method, a video transmitting apparatus, and a video transmitting method for improving the reproducibility of a program in which a broadcast video and a communication video are interlocked.

The video receiving apparatus in the embodiment has a broadcast receiving unit and a communication IF capable of receiving a communication video, and has a function of displaying a broadcast video and the communication video in cooperation with each other.
The broadcast video is included in a broadcast wave stream, the broadcast wave stream includes related video information and information related to broadcast communication cooperation, and the related video information includes expiration date information and information related to the relationship of the communication video. The expiration date information indicates a deadline related to the availability of the communication video.
The broadcast reception unit receives the broadcast wave stream, the video reception device extracts the expiration date information from the received broadcast wave stream, and the communication IF receives the communication video based on the expiration date information. To receive.

BRIEF DESCRIPTION OF THE DRAWINGS The block diagram used as the outline of the imaging | video transmission / reception system which concerns on embodiment. The display screen figure in the video receiving apparatus which concerns on embodiment. FIG. 6 is a diagram showing a program recording process in the video reception device according to the embodiment. 6 is a flowchart of a program recording process in the video reception device according to the embodiment. 6 is a flowchart of display processing of a recorded title in the video reception device according to the embodiment. The display screen figure in the video receiving apparatus which concerns on embodiment. The display screen figure in the video receiving apparatus 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 apparatus 20, and a program server 30.

  The configuration of the video reception device 10 will be described. The video receiving device 10 includes a central processing unit (CPU) 101, a control software read only memory (ROM) 102, a random access memory (RAM) 103, a storage unit 104, a clock 105, a broadcast receiving unit 106, a decoder 107, and a communication IF ( Interface) 108 and a display unit 109. The video reception device 10 is, for example, a television, but is not limited. The video receiver 10 has a function of receiving a video (hereinafter referred to as a video or broadcast video via broadcast) transmitted via a broadcast wave, and a video transmitted / received via a communication network (hereinafter video or communication via communication) It has only to have both functions of receiving video). In the present embodiment, the communication video is a related video constituting a program together with the broadcast video in a program provided by the broadcast communication cooperative service (hereinafter referred to as a broadcast communication cooperative 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 acquiring unit 101a has a function of acquiring various types of information from broadcast waves as described later. The recording control unit 101b has a function of recording and controlling broadcast video, as described later. The display control unit 101c has a function of controlling display of various messages as described later. The reproduction control unit 101d has a function of controlling reproduction of the recorded broadcast video as described later. The control software ROM 102 stores a control program which is processing content executed by the CPU 101. The RAM 103 is a work area required for the CPU 101 to execute processing.

  The storage unit 104 functions as a storage unit that stores various types of information. The storage unit 104 writes and reads various information by the CPU 101. The clock 105 counts the current date and time. The broadcast receiving unit 106 receives, via the antenna 11, a broadcast wave (also referred to as a broadcast signal or stream) including a broadcast image forming a program currently being broadcast on a channel selected by the user. The broadcast receiving unit 106 functions as a receiving unit that receives a 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 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 a recorded broadcast video) via the communication network 40. The communication IF 108 functions as a receiving unit that receives a 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 a broadcast video (or a recorded broadcast video) and a communication video.

The configuration of the video transmission device 20 will be described. The video transmission device 20 is, for example, a device provided to a broadcast station. 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 which is processing content to be 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. The storage unit 204 writes and reads various types of information by the CPU 201. The broadcast transmission unit 204 transmits the broadcast video constituting the program currently being broadcast via the broadcast wave (over the broadcast wave) via the antenna 21. The broadcast transmission unit 204 functions as a transmission unit that transmits a broadcast video constituting a program.

The configuration of the program server 30 will be described. The program server 30 is, for example, an apparatus provided to a broadcast station. The program server 30 is a server that stores a communication video that configures a program together with a broadcast video (or a 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 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. The storage unit 304 writes and reads various types of information by the CPU 301. As an example, the storage unit 304 stores the communication video.
The communication IF 305 is an interface that transmits and receives various information via the communication network 40. The communication IF 305 transmits a communication video to the video reception device 10 in response to a request from the video reception device 10, as described later.

  Next, the display screen of the broadcast communication cooperation program will be described. FIG. 2 is a diagram of a display screen on 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 video of sports broadcasting. The communication image 52 is an additional image such as a multi-angle in sports broadcasting. Although the program shown in FIG. 2 is an example established with only the broadcast video 51, it is not limited thereto. For example, the communication video 52 may be a video which can be mutually switched with the broadcast video 51 by a user operation, or a video which is user-operable and has a game function interlocked with 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 process of recording a program in the video reception device 10 according to the embodiment will be described. FIG. 3 is a schematic view of a video recording process of a program in the video receiving apparatus 10. As shown in FIG. When the program currently being broadcast is a broadcast communication cooperation program, the CPU 201 of the video transmission device 20 multiplexes and transmits the expiration date information of the communication video related to the broadcast video to the stream of the program. Expiration date information is, for example, information on an available expiration date of the communication image stored in the storage unit 304 of the program server 30. Note that the expiration date information is multiplexed in the stream for each of the communication videos, as an example. In the example shown in FIG. 3, the video 1 is a broadcast video that constitutes a program currently being broadcast. The video 2 and the video 3 are related videos of the 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 each of the video 2 and the video 3 is multiplexed. Instead of this, or in addition to this, information indicating the location of the expiration date information (for example, information of a URL linked to the program server 30) may be multiplexed in the stream.

  The CPU 101 of the video reception device 10 performs control so as to record the video 1 which is a broadcast video included in the stream in the storage unit 104 when recording a program currently being broadcasted. The CPU 101 controls the expiration date information of the communication video multiplexed in the stream to be recorded in the storage unit 104 in association with the video 1. Although the CPU 101 receives the video 2 and the video 3 which are communication videos constituting the program together with the video 1 by the communication IF 108, the recording control of the video 2 and the video 3 in the storage unit 104 is not performed.

  FIG. 4 is a flowchart of a program recording process. First, the broadcast receiving unit 106 receives a broadcast wave of a program currently being broadcast which is to be recorded (Block 1001). In Block 1001, the broadcast reception unit 106 receives a broadcast image that constitutes 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 the program to be recorded is a broadcast / communication cooperation program.

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

  If the program to be recorded is a broadcast 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 a broadcast video.

  The CPU 101 determines whether 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, based on the related video descriptor, whether or not a communication video forming the program to be recorded separately from the broadcast video exists on the program server 30. 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 is present in the broadcast video (Block 1006, No), the CPU 101 determines whether the expiration date information is present in the stream (Block 1007). Expiration date information may be multiplexed to, for example, a related video descriptor.

  When expiration date information exists in the stream (Block 1007, Yes), the CPU 101 executes recording of a broadcast video and records the expiration date information in the recording title information (Block 1008). In Block 1008, the CPU 101 controls the storage unit 104 to record a broadcast video constituting a program to be recorded. Further, the CPU 101 controls to add a recording title for specifying a recording broadcast video corresponding to the broadcast video to the recording list and to record the same. Furthermore, 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 recording 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 reproduction control file of the communication video 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 the expiration date information, and acquires URL information for accessing the reproduction control file (URL information for acquiring the expiration date information from the program server 30) from the stream. Information indicating the existence of the expiration date information is multiplexed in the stream. Then, the CPU 101 accesses the reproduction control file based on the URL information. The CPU 101 acquires, from the program server 30, expiration date information explicitly described in the reproduction control file. In addition, even if the expiration date information is not explicitly described in the reproduction control file, the CPU 101 analyzes the HTML of the reproduction control file, for example, and acquires the expiration date information from the program server 30 based on various information. You may do it.
The CPU 101 determines whether or not the expiration date information exists in the reproduction control file (Block 1010). When expiration date information exists in the reproduction control file (Block 1010, Yes), the CPU 101 acquires the expiration date information from the reproduction control file, and executes the process of Block 1008.

  When the expiration date information does not exist in the reproduction control file (Block 1010, No), the CPU 101 executes the process of Block 1004. That is, although the related video exists in the recorded broadcast video recorded in the storage unit 104, the related video does not have an expiration date set. Therefore, the CPU 101 can obtain the related video from the program server 30 at any time.

  When the CPU 101 accesses the reproduction control file of the related video in Block 1009 and accesses the program server 30 in Block 1010 and there is expiration date information, the expiration date information is acquired from the reproduction control file during the broadcast of the program. It is not limited to. The CPU 101 appropriately accesses the program server 30, such as a predetermined period cycle after the completion of the broadcast processing of the program, the completion of the recording processing, and the completion of the recording processing, acquires the expiration date information, and updates the expiration date information recorded in the storage unit 104. You may do so. The broadcast station may change the expiration date information of the communication video stored in the program server 30 after the end of the broadcast of the program. Therefore, the video reception device 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 display processing of a recorded title.
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 the display operation of the recording list by the user.
The CPU 101 acquires 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 a display operation of information related to the recorded broadcast video corresponding to the recording title to be selected). The recording title information is acquired from the storage unit 104.

  The CPU 101 determines whether expiration date information is recorded in the recording title information (Block 2003). When the expiration date information is not recorded in the recording title information (Block 2003, No), the CPU 101 controls to display normal title information (Block 2004). In Block 2004, the CPU 101 controls to display the recording title information of the selected recording title on the display unit 109. The recording title information displayed on the display unit 109 is, for example, information on a program name and broadcast date and time. In the case where the expiration date information is not recorded in the recording title information in Block 2003, for example, the related video does not exist in the selected recording title, or the related video exists in the selected recording title, but the expiration date Is not set. The CPU 101 controls to reproduce the recorded broadcast video recorded in the storage unit 104 and display the same on the display unit 109 based on the reproduction operation of the recorded title by the user. Alternatively, based on the reproduction operation of the recorded title by the user, the CPU 101 synchronizes with 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, and communicates with the recorded broadcast video It controls playback of a program composed of video and displays it on the display unit 109.

When expiration date information is recorded in the recording title information (Block 2003, Yes), the CPU 101 acquires current date and time information clocked by the clock 105 (Block 2005). The CPU 101 compares the current date and time information with the expiration date information, and determines whether the current date and time is within the expiration date (Block 2006).
If 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 uses the recording title information including at least the expiration date information based on the display operation of the information related to the recording broadcast video corresponding to the recording title selected by the user. Control is performed to display on the display unit 109. FIG. 6 is a display screen diagram of the display unit 109 in the block 2007. The CPU 101 controls the display unit 109 to display the recording title 53 of the recording title 3 selected from the recording list 53 and 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 prompting the user to view and listen to 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 the program of the recorded title can be completely viewed including the related video if the recorded title is reproduced by any time. be able to. 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 reproduction operation of the recorded broadcast video corresponding to the recorded title 3 by the user. It controls to reproduce the program composed of the recorded broadcast video and the communication video and to display it on the display unit 109.

  Referring back to FIG. 5, when the current date and time is not within the expiration date (Block 2006, No), the CPU 101 determines whether the related video is required (Block 2008). Note that the information indicating whether the related video is essential may be multiplexed or arranged in the stream. At the time of recording processing, the CPU 101 may acquire information as to whether or not the related video is essential, 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 recording title information.

  If the related video is essential (Block 2008, Yes), the CPU 101 controls the display unit 109 to display a message indicating that the selected recording title is not available (Block 2009). In Block 2009, when the current date and time is not within the expiration date and the related video is essential, the CPU 101 controls to display on the display unit 109 a message in which at least the communication video can not be used. FIG. 7 is a display screen diagram of the display unit 109 in the block 2009. 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 can not be correctly reproduced because the related video that is essential even if the recorded title is reproduced can not be viewed. By visually recognizing this message displayed on the display unit 109, the user does not perform unnecessary playback operation.

  When the related video is not essential (that is, when the related video is an additional video of the recording 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 to display on the display unit 109 (Block 2010). In Block 2010, the CPU 101 controls the display unit 109 to display a message that the communication video can not be used when the current date and time is not within the expiration date and the related video is not essential. The CPU 101 performs reproduction control of the recorded broadcast video recorded in the storage unit 104 based on the reproduction operation of the recorded title by the user, and controls the display unit 109 to display it. Note that since the related video has an expiration date, 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 can not be viewed.

  According to this embodiment, the user can recognize that the program to be recorded is a broadcast communication cooperation program. Furthermore, the user can know the expiration date that 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 a recording title intended to be viewed can not be viewed incompletely or can not be viewed at all as meaningful.

  While certain embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

  DESCRIPTION OF SYMBOLS 1 ... Video transmission / reception system, 10 ... Video receiver, 11 ... Antenna, 20 ... Video transmitter, 21 ... Antenna, 30 ... Program server, 40 ... Communication network, 51 ... Broadcast video, 52 ... Communication video, 53 ... Recording list , 54: recording title information, 101: CPU, 102: control software, 103: RAM, 104: storage unit, 105: clock, 106: broadcast reception unit, 107: decoder, 108: communication 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 (4)

In a video receiving apparatus having a broadcast receiving unit and a communication IF capable of receiving a communication video,
The video receiver can display the broadcast video and the communication video in cooperation with each other,
The broadcast video is included in a broadcast wave stream,
The broadcast wave stream includes related video information and information on broadcast communication cooperation,
The related video information includes expiration date information and information related to the relationship of the communication video,
The expiration date information indicates a deadline related to the availability of the communication video,
The broadcast receiver receives the broadcast wave stream;
The video receiver extracts the expiration date information from the received broadcast wave stream,
The video receiving apparatus, wherein the communication IF receives the communication video based on the expiration date information. A video receiving method used in a video receiving apparatus capable of cooperatively displaying communication video and broadcast video in a broadcast wave stream, comprising:
The broadcast wave stream includes related video information and information on broadcast communication cooperation,
The related video information includes expiration date information and information related to the relationship of the communication video,
The expiration date information indicates a deadline related to the availability of the communication video,
Extracting the expiration date information from the received broadcast wave stream;
A video reception method for receiving the communication video based on the expiration date information. A video transmission apparatus comprising a broadcast transmission unit for transmitting a broadcast wave stream including a broadcast video,
The broadcast wave stream includes related video information and information on broadcast communication cooperation,
The related video information includes expiration date information and information related to the relationship of communication video,
The expiration date information indicates a deadline related to the availability of the communication video,
The video receiving device that has received the broadcast wave stream can receive the communication video based on the expiration date information, and can display the broadcast video and the communication video in cooperation with each other.
The video transmission apparatus which multiplexes the said expiration date information on the said broadcast wave stream, and transmits from the said broadcast transmission part. A video transmission method for transmitting a broadcast wave stream including broadcast video, comprising:
The broadcast wave stream includes related video information and information on broadcast communication cooperation,
The related video information includes expiration date information and information related to the relationship of communication video,
The expiration date information indicates a deadline related to the availability of the communication video,
The video receiving device that has received the broadcast wave stream can receive the communication video based on the expiration date information, and can display the broadcast video and the communication video in cooperation with each other.
The video transmission method which multiplexes the said expiration date information on the said broadcast wave stream, and transmits.

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