JP2020005284A - Video receiving apparatus, video receiving method, video transmitting apparatus, and video transmitting method - Google Patents

Abstract

To provide a video receiving apparatus that improves reproducibility of a program in which a broadcast video and a communication video are linked, a video receiving method, a video transmitting apparatus, and a video transmitting method.SOLUTION: A broadcast wave stream received by the video receiving apparatus includes information on a broadcast video, related video information, and broadcast communication cooperation. The related video information includes expiration date information and information related to an existence of a communication video. The video receiving apparatus receives the communication video and reproduces the broadcast video on the basis of the expiration date information and displays both images in cooperation.SELECTED DRAWING: Figure 4

Description

  The present embodiment relates to a video receiving device, a video receiving method, a video transmitting device, and a video transmitting method for receiving a video.

  2. Description of the Related Art In recent years, a broadband Internet connection environment has been remarkably spread to ordinary households, and a VOD (Video On Demand) service for receiving and viewing video contents via communication has been spreading. As an extension of the movement, there is a broadcast / communication cooperative service in which an integrated program is formed by using a video via communication and a video via broadcast (related video) together and provided to a viewer. Technical studies and standards are being prepared for the provision of broadcasting and communication cooperation services.

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

  When a viewer watches a program in real time (views it at the time of broadcasting), among broadcasters constituting the program, the broadcaster guarantees that the video via communication can be obtained from the server.

JP 2006-345495A

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

  Therefore, the viewer may not be able to obtain necessary related video via communication when the viewer records the program with the receiving apparatus and tries to play and view the program after the broadcast. Therefore, the program that does not include the related video becomes meaningless and may cause confusion for the viewer.

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

  An object of the present invention is to provide a video receiving device, a video receiving method, a video transmitting device, and a video transmitting method that improve the reproducibility of a program in which a broadcast video and a communication video are linked.

The broadcast wave stream received by the video receiving apparatus according to the present embodiment includes a broadcast video, related video information, and information on broadcast communication cooperation, and the related video information includes expiration date information and information related to the presence of the communication video. .
The video receiving apparatus receives the communication video and reproduces the broadcast video based on the expiration date information, and displays both videos in cooperation.

1 is a schematic block diagram of a video transmission / reception system according to an embodiment. FIG. 4 is a display screen diagram in the video receiving device according to the embodiment. FIG. 4 is an exemplary view showing a program recording process in the video receiving apparatus according to the embodiment. 9 is a flowchart of a program recording process in the video receiving device according to the embodiment. 9 is a flowchart of a recording title display process in the video receiving device according to the embodiment. FIG. 4 is a display screen diagram in the video receiving device according to the embodiment. FIG. 4 is a display screen diagram in the video receiving device according to the 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 receiving device 10 will be described. The video receiving device 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, for example, a television, but is not limited thereto. The video receiving apparatus 10 has a function of receiving a video transmitted via a broadcast wave (hereinafter referred to as a broadcast video or a broadcast video), a video transmitted / received via a communication network (hereinafter, a video or a communication via a communication). It is only necessary to have both functions of receiving video (called 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 cooperation service (hereinafter, referred to as a broadcast / communication cooperation program).

  The CPU 101 controls the operation of each element of the video receiving 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 information from broadcast waves, as described later. The recording control unit 101b has a function of controlling recording of a broadcast video, as described later. The display control unit 101c has a function of controlling display of various messages, as described later. The playback control means 101d has a function of controlling playback of the recorded broadcast video, as described later. The control software ROM 102 stores a control program which is a processing content executed by the CPU 101. The RAM 103 is a work area necessary for the CPU 101 to execute a process.

  The storage unit 104 functions as a storage unit that stores various information. In the storage unit 104, various information is written and read by the CPU 101. The clock 105 measures 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 a stream) including a broadcast video constituting 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 recording a program, the broadcast video and audio are recorded in the storage unit 104 by the CPU 101. In the present embodiment, a broadcast video recorded in the storage unit 104 is referred to as a recorded broadcast video.

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

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

The configuration of the video transmission device 20 will be described. The video transmission device 20 is, for example, a device included in a broadcasting 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 receiving device 20. The control software ROM 202 stores a control program which is a processing content executed by the CPU 201. The RAM 203 provides a work area necessary for the CPU 201 to execute a process. The storage unit 204 stores various information. In the storage unit 204, various information is written and read by the CPU 201. The broadcast transmitting unit 204 transmits a broadcast video constituting a currently broadcasted program via the antenna 21 via a broadcast wave (on the broadcast wave). The broadcast transmitting unit 204 functions as a transmitting 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, a device included in a broadcasting station. The program server 30 is a server that stores a communication video that constitutes 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 which is a processing content executed by the CPU 301. The RAM 303 provides a work area necessary for the CPU 301 to execute a process.

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

  Next, the display screen of the broadcast communication cooperation program will be described. FIG. 2 is a display screen diagram on the display unit 109 of the video receiving device 10 according to the present embodiment. The display unit 109 displays both the broadcast video (or the 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 sports broadcast multi-angle. Note that the program shown in FIG. 2 is an example in which only the broadcast video 51 is established, but the present invention is not limited to this. For example, the communication video 52 may be a video that can be switched between display with the broadcast video 51 by a user operation, or a video that is user-operable 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 equal 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, recording processing of a program in the video receiving device 10 according to the embodiment will be described. FIG. 3 is a schematic diagram of a recording process of a program in the video receiving device 10. When the program currently being broadcast is a broadcast / communication cooperative program, the CPU 201 of the video transmission device 20 multiplexes the expiration date information of the communication video related to the broadcast video to the stream of the program and transmits it. The term of validity information is, for example, information relating to the term of validity of the communication video stored in the storage unit 304 of the program server 30. The expiration date information is multiplexed on the stream for each communication video, for example. In the example shown in FIG. 3, the video 1 is a broadcast video constituting 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, expiration date information of each of the video 2 and the video 3 is multiplexed. Alternatively or together with 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 receiving device 10 controls so as to record the video 1 which is a broadcast video included in the stream in the storage unit 104 when performing the recording process of the program currently being broadcast. The CPU 101 controls the expiration date information of the communication video multiplexed on the stream to be recorded in the storage unit 104 in association with the video 1. Note that the CPU 101 receives the video 2 and the video 3 which are the communication video constituting the program together with the video 1 by the communication IF 108, but does not control the recording of the video 2 and the video 3 in the storage unit 104.

  FIG. 4 is a flowchart of a 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, via a broadcast wave, a broadcast video constituting a currently broadcasted program. The CPU 101 reads the 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.

The CPU 101 determines whether the program to be recorded is a broadcast / communication cooperative program based on the service descriptor (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 so that the broadcast video constituting the program to be recorded is recorded in the storage unit 104. Further, the CPU 101 controls so that a recording title (for example, a program name) for specifying a recording 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 recording title information is, for example, information related to the recorded broadcast video, such as a program name, broadcast date and time, presence or absence of related video, and presence or absence of expiration date information.

  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 there is a communication video that is a related video of the broadcast video.

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

  When the expiration date information exists in the stream (Block 1007, Yes), the CPU 101 executes the recording of the broadcast video and records the expiration date information in the recording title information (Block 1008). In Block 1008, the CPU 101 controls so that the broadcast video constituting the program to be recorded is recorded in the storage unit 104. Further, the CPU 101 controls so that a recording title for specifying a recording broadcast video corresponding to the broadcast video is added to the recording list and recorded. Further, the CPU 101 acquires the expiration date information of the communication video from the stream. Then, the CPU 101 controls to record the expiration date information in the recording title information.

If there is no expiration date information in the stream (Block 1007, No), the CPU 101 accesses the related video reproduction control file (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 the expiration date information, and obtains URL information for accessing the reproduction control file (URL information for obtaining the expiration date information from the program server 30) from the stream. The information indicating the location 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 the expiration date information explicitly described in the playback control file. 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 and acquires the expiration date information from the program server 30 based on various information. You may make it.
The CPU 101 determines whether expiration date information exists in the reproduction control file (Block 1010). If the 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.

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

  Note that the CPU 101 accesses the reproduction control file of the related video in Block 1009 and accesses the program server 30 in Block 1010 to acquire the expiration date information from the reproduction control file when the expiration date information exists. It is not limited to only. The CPU 101 obtains expiration date information by accessing the program server 30 as appropriate, such as when the broadcast of the program ends, when the recording process is completed, and at a predetermined period after the recording process is completed, and updates the expiration date information recorded in the storage unit 104. You may do so. The broadcasting station may change the expiration date information of the communication video stored in the program server 30 after the broadcast of the program ends. Therefore, the video receiving device 10 can update the expiration date information recorded in the storage unit 104, following the update of the expiration date information in the program server 30.

Next, a process of displaying a recorded title in the video receiving device 10 according to the embodiment will be described. FIG. 5 is a flowchart of the 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 the 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 the specific recording title from the recording list by the user (or displays the information related to the recorded broadcast video corresponding to the selected recording title) and displays the selected recording title. The recording title information is acquired from the storage unit 104.

  The CPU 101 determines whether expiration date information is recorded in the recorded 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 the display unit 109 to display the recording title information of the selected recording title. The recording title information displayed on the display unit 109 is, for example, information on a program name and a broadcast date and time. Note that the case where the expiration date information is not recorded in the recording title information in Block 2003 means, for example, that the relevant video does not exist in the selected recording title, or that the relevant video exists in the selected recording title but the expiration date does not exist. Is not set. The CPU 101 controls the recorded broadcast video recorded in the storage unit 104 to be reproduced and displayed 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 via the communication IF 108 based on the user's operation of reproducing the recorded title, and communicates with the recorded broadcast video. Playback control of a program composed of video and video is performed so as to be displayed on the display unit 109.

When the expiration date information is recorded in the recording title information (Block 2003, Yes), the CPU 101 acquires the current date and time information measured by the clock 105 (Block 2005). 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).
If the current date and time is within the expiration date (Block 2006, Yes), the CPU 101 controls the display unit 109 to display the expiration date information of the recording title (Block 2007). In Block 2007, when the current date and time is within the expiration date, the CPU 101 generates the recording title information including at least the expiration date information based on the user's display operation of the information related to the recorded broadcast video corresponding to the selected recording title. Control is performed so as to be displayed on the display unit 109. FIG. 6 is a display screen diagram of the display unit 109 in Block 2007. The CPU 101 controls the recording list 53 and the recording title information 54 of the recording title 3 selected from the recording list 53 to be displayed on the display unit 109. 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 so as to display a message that prompts the user to play and view the recorded title within the valid 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 with the communication video received from the program server 30 by the communication IF 108 based on the user's operation of reproducing the recorded broadcast video corresponding to the recording title 3. In addition, reproduction control is performed on a program composed of the recorded broadcast video and the communication video, and the display is 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 indispensable (Block 2008). The information indicating whether or not the related video is essential may be multiplexed or arranged in the stream. At the time of the recording process, the CPU 101 may acquire information as to whether or not the related video is indispensable, and record the information in the recording title information. Then, the CPU 101 can determine whether or not the related video is essential based on the information recorded in the recorded title information.

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

  If the related video is not essential (that is, if the related video is an additional video of the recorded broadcast video) (Block 2008, No), the CPU 101 sends a message indicating that the relevant video of the selected recording title is unavailable. The display is controlled to be displayed on the display unit 109 (Block 2010). In Block 2010, when the current date and time are not within the validity period and the related video is not essential, the CPU 101 controls the display unit 109 to display a message that the communication video is not available. The CPU 101 controls the reproduction 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 the recorded broadcast video. Since the expiration date of the related video has passed, the CPU 101 does not acquire the related video from the program server 30 via the communication IF 108. By visually recognizing the message displayed on the display unit 109, the user can easily know that the related video cannot be viewed.

  According to the present embodiment, the user can recognize that the program to be recorded is a broadcast communication cooperation program. Further, 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 be linked to the action of viewing the recorded title within the expiration date. As a result, it is possible to prevent a situation in which the user can only view the recording title that he or she wants to view incompletely or not at all as meaningful.

  While some embodiments of the invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. These new embodiments can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Video transmission / reception system, 10 ... Video receiving apparatus, 11 ... Antenna, 20 ... Video transmitting apparatus, 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 receiving 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 device having a broadcast IF and a communication IF capable of receiving a communication video,
A storage unit capable of recording a broadcast video in a broadcast wave stream exists in the video receiving device,
The video receiving device can display the broadcast video and the communication video in cooperation with each other,
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 presence of the communication video,
The expiration date information indicates a date associated with the availability of the communication video,
The broadcast receiving unit receives the broadcast wave stream,
The video receiving device determines the content of the information related to the broadcast communication cooperation, determines the content of the information related to the presence of the communication video,
When the expiration date information is present in the related video information, the broadcast video is recorded in the storage unit,
The video receiving device determines the expiration date information from the received broadcast wave stream,
A video receiving device in which the communication IF receives the communication video based on the expiration date information and reproduces the broadcast video from the storage unit. Broadcast wave stream and communication video can be received,
A method used in a video receiving device capable of displaying the communication video and the broadcast video in cooperation with each other,
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 presence of the communication video,
The expiration date information indicates a date associated with the availability of the communication video,
The video receiving device receives the broadcast wave stream, determines the content of the information related to the broadcast communication cooperation, determines the content of the information related to the presence of the communication video,
When the expiration date information is present in the related video information, the broadcast video is recorded in the video receiving device,
The video receiving device determines the expiration date information from the received broadcast wave stream,
A video receiving method for receiving the communication video based on the expiration date information and reproducing the recorded broadcast video. In a video transmission device including a broadcast transmission unit that transmits a broadcast wave stream including a broadcast video,
The video receiving device capable of receiving the broadcast wave stream can display the broadcast video and the communication video in cooperation with each other,
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 presence of the communication video,
The expiration date information indicates a date associated with the availability of the communication video,
Transmitting the broadcast wave stream multiplexed with the expiration date information from the broadcast transmitting unit,
Let the video receiving device determine the content of the information related to the broadcast communication cooperation, and determine the content of the information related to the presence of the communication video,
When the expiration date information is arranged in the related video information, the broadcast video is recorded in the video receiving device,
A video transmitting device that causes the video receiving device to receive the communication video based on the expiration date information and reproduce the recorded broadcast video. In a video transmission method for transmitting a broadcast wave stream including a broadcast video,
The video receiving device capable of receiving the broadcast wave stream can display the broadcast video and the communication video in cooperation with each other,
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 presence of the communication video,
The expiration date information indicates a date associated with the availability of the communication video,
Multiplexing and transmitting the expiration date information to the broadcast wave stream,
Let the video receiving device determine the content of the information related to the broadcast communication cooperation, and determine the content of the information related to the presence of the communication video,
When the expiration date information is arranged in the related video information, the broadcast video is recorded in the video receiving device,
A video transmitting method for causing the video receiving device to receive the communication video based on the expiration date information and to reproduce the recorded broadcast video.

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