WO2016181901A1 - Système de distribution de contenus - Google Patents

Système de distribution de contenus Download PDF

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Publication number
WO2016181901A1
WO2016181901A1 PCT/JP2016/063655 JP2016063655W WO2016181901A1 WO 2016181901 A1 WO2016181901 A1 WO 2016181901A1 JP 2016063655 W JP2016063655 W JP 2016063655W WO 2016181901 A1 WO2016181901 A1 WO 2016181901A1
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Prior art keywords
content
signal
broadcast
stream format
time
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PCT/JP2016/063655
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English (en)
Japanese (ja)
Inventor
響児 小西
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株式会社リクルートホールディングス
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Publication of WO2016181901A1 publication Critical patent/WO2016181901A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2665—Gathering content from different sources, e.g. Internet and satellite

Definitions

  • the present invention relates to a content distribution technology.
  • Non-Patent Document 1 a service that distributes a TV program as a moving image via the Internet in a video-on-demand system is known (for example, see Non-Patent Document 1).
  • the predetermined embodiment of the present invention intends to provide a technique for editing and distributing content including a television program in real time.
  • a content distribution system includes an encoder that converts content received from a broadcasting station into stream format data, a distribution server that distributes stream format data, and distributed stream format data.
  • a user viewing device that receives and reproduces content, receives a first signal from a broadcast station, and based on the first signal, the broadcast station broadcasts a first portion of the content
  • a detector that detects whether or not the content is detected, and a replacement unit that replaces the first portion of the content with another content based on the detection result of the detector.
  • a content distribution method includes an encoder that converts content received from a broadcast station into stream format data, a distribution server that distributes stream format data, and a stream format that has been distributed.
  • An encoding apparatus receives an encoder capable of converting content received from a broadcast station into stream format data, a first signal from the broadcast station, and converts the received first signal into the first signal. Based on a detector that detects whether the broadcast station is broadcasting the first part of the content, and when the detector detects that the first part of the content is broadcast, In place of content, another content is passed to the encoder, and when it is detected that a portion other than the first portion of the content is broadcast, a replacement unit that passes the content received from the broadcast station to the encoder; Is provided.
  • An encoding method receives content from a broadcast station, receives a first signal from the broadcast station, and the broadcast station uses a first of the contents based on the first signal. If it is detected that the first part of the content is being broadcast as a result of the detection, another content is passed to the encoder instead of the content. When it is detected that a part other than the first part of the content is being broadcast, the content received from the broadcasting station is passed to the encoder, and the passed content is converted to stream format data by the encoder ,including.
  • a content distribution system includes an encoder capable of converting content received from a broadcast station into stream format data, a time stamp adding means for adding a time stamp to the stream format data, Whether the broadcast station is broadcasting the first portion of the content based on the distribution server that distributes the data in the stream format with the time stamp added to the user viewing device and the first signal received from the broadcast station.
  • a transmission means for transmitting information related to the time when the first part of the content is broadcast to the user viewing device based on the detection result of the detector, and a distributed time stamp
  • the first part is Comprising information about transmission to time, based on the time stamp, the first portion of the content, to play replaced with another content, and the user viewing equipment, a.
  • a content distribution method includes converting content received from a broadcasting station into stream format data, adding a time stamp to the stream format data, and stream format with a time stamp added.
  • To the user viewing device based on the first signal received from the broadcast station, whether the broadcast station is broadcasting the first part of the content, Based on this, the information related to the time when the first part of the content is broadcast is transmitted to the user viewing device, and the content is reproduced based on the stream-format data to which the distributed time stamp is added. Based on the information about the time when the first part was broadcast and the time stamp, The parts, and a be played replaced with another content.
  • a program according to a predetermined embodiment of the present invention causes a computer to execute at least a part of each process of the above-described method.
  • the computer here includes not only a host computer but also a PC (personal computer), a tablet terminal, a smartphone, a wearable terminal, and other arbitrary information processing apparatuses.
  • Such a program is installed or loaded on a computer by downloading an application (application) or the like through various recording media such as an optical disk such as a CD-ROM, a magnetic disk, or a semiconductor memory, or via a communication network. be able to.
  • real time when delivering in “real time”, it does not necessarily mean delivery at the same time or at the same time, and may include delivery in a predetermined time delay.
  • “real-time” distribution includes editing and converting data for streaming distribution in sequence when the content is received without distributing or converting the content in advance.
  • the term “means” does not simply mean a physical means, but includes a case where the functions of the means are realized by software. Further, the function of one means may be realized by two or more physical means, or the functions of two or more means may be realized by one physical means.
  • FIG. 1 is a schematic diagram showing a configuration of a content distribution system 1a according to the first embodiment.
  • FIG. 2 is a schematic diagram illustrating an example of the configuration of the CM-compatible encoder 10a according to the first embodiment.
  • FIG. 3 is a schematic diagram illustrating an example of the configuration of the user viewing device 30a according to the first embodiment.
  • FIG. 4 is a flowchart illustrating an example of a processing flow by the CM-compatible encoder 10a according to the first embodiment.
  • FIG. 5 is a schematic diagram showing a configuration of a content distribution system 1b according to the second embodiment.
  • FIG. 6 is a schematic diagram illustrating an example of the configuration of the time stamp corresponding encoder 10b according to the second embodiment.
  • FIG. 7 is a schematic diagram illustrating an example of the configuration of the CM signal transmission server 40 according to the second embodiment.
  • FIG. 8 is a schematic diagram illustrating an example of the configuration of the user viewing device 30b according to the second embodiment.
  • FIG. 9 is a flowchart illustrating an example of a processing flow by the content distribution system 1b according to the second embodiment.
  • FIG. 10 is a timing chart illustrating an example of processing timing by the user viewing device 30b according to the second embodiment.
  • FIG. 1 is a schematic diagram showing a configuration of a content distribution system 1a according to an embodiment of the present invention.
  • the content distribution system 1 a includes a CM-compatible encoder 10 a and a distribution server 20.
  • the content distribution system 1a further includes a user viewing device 30a, and the distribution server 20 and the user viewing device 30a can be connected via the network N.
  • the CM-compatible encoder 10a receives the video signal X1 and the CM signal X2, converts it into stream format data, and outputs stream data Y.
  • the CM-compatible encoder 10a receives a video signal X1 of a program being broadcast from a broadcast station or the like.
  • the program includes, for example, individual contents constituting a program table in television broadcasting, and one program is composed of a main part and a CM.
  • the main part refers to a part of the program other than the CM.
  • the CM-compatible encoder 10a creates stream data by encoding the main part video as it is based on the received video signal X1 for the main part in the program. On the other hand, for the CM portion in the program, the CM-compatible encoder 10a does not encode the CM video as it is, but replaces it with another video V and encodes the other video V to create stream data. .
  • the determination as to whether or not the program is in a CM is made based on the CM signal X2. That is, the CM signal X2 is a signal for determining which part in the program is the main part and which part is the CM. For example, when the voltage of the CM signal X2 is larger than a predetermined voltage value, it is during CM, and when it is smaller than the predetermined value, it is not during CM, that is, it can indicate that the main part is flowing.
  • a CM signal X2 is preferably provided by a broadcasting station, but is not limited thereto.
  • the CM-compatible encoder 10a detects whether or not the program is in the CM by receiving the CM signal X2 of the program together with the video signal X1 of the program being broadcast from a broadcasting station or the like, and detecting the voltage value. can do. Then, based on the detection result, the main part is left as it is, and the CM part is replaced with another moving image V to create stream data. In the stream data created in this way, the main part is the same as the program being broadcast, and the CM part is replaced with another moving picture V.
  • the stream data Y created in this way is output from the CM-compatible encoder 10 a and passed to the distribution server 20.
  • the distribution server 20 receives the stream data Y from the CM-compatible encoder 10a and performs a process of distributing the stream data Z to the user viewing device 30.
  • the distribution server 20 may apply a commercially available streaming server.
  • the distribution server 20 when receiving a program playback request from the user viewing device 30a, the distribution server 20 distributes the stream data Z to the user viewing device 30.
  • the distribution server 20 can distribute the stream data Z to a plurality of user viewing devices 30 almost simultaneously except for a communication time lag and the like.
  • the stream data Y received by the distribution server 20 and the stream data Z distributed from the distribution server 20 are distinguished from each other, but the contents of the contents (that is, the program being broadcast and the main part are the same). , Which is obtained by replacing the CM part with another moving image), the stream data may be the same, or may be stream data having different bit rates.
  • the distribution server 20 may transfer the stream data Y received from the CM-compatible encoder 10a to the user viewing device 30 as it is after adjusting the communication timing. Further, the distribution server 20 calculates an appropriate bit rate based on the processing capacity and playback environment of the user viewing device 30a as a distribution destination and the network environment such as the bandwidth of the network N, and an image corresponding to the bit rate. The stream data Z converted into the size and quality can be distributed to the user viewing device 30a at an appropriate communication speed.
  • the user viewing device 30a receives the stream data Z from the distribution server 20 via the network N and performs a process of playing back the program.
  • the user viewing device 30a is a device for the user to view the content distributed from the distribution server 20, for example, a PC (personal computer), a tablet terminal, a smartphone, an Internet-compatible TV, a portable information terminal. (PDA) or any other information device. More specifically, a device in which a player application for video playback such as Windows Media Player (registered trademark) or Real Player (registered trademark) is installed on these information devices is installed.
  • the user viewing device 30a can be used.
  • the user viewing device 30a first accesses the distribution server 20 to request a video of the program, so that the stream data Z is distributed from the distribution server 20 to the user viewing device 30a. As a result, the program can be viewed on the user viewing device 30a.
  • the network N includes a communication network capable of transmitting and receiving data between the distribution server 20 and the user viewing device 30a.
  • a communication network capable of transmitting and receiving data between the distribution server 20 and the user viewing device 30a.
  • Internet LAN, leased line, telephone line, corporate network, mobile communication network, Bluetooth, WiFi (Wireless Fidelity), other communication lines, combinations thereof, etc. It doesn't matter if it's wireless.
  • FIG. 2 is a schematic diagram illustrating an example of the configuration of the CM-compatible encoder 10a according to the present embodiment.
  • the CM-compatible encoder 10a in this embodiment includes a CM detector 110, a moving image replacement unit 100, and an encoder 140.
  • the moving image replacement unit 100 performs a process of replacing the CM portion of the broadcast program with another moving image.
  • a process of replacing the moving image is performed based on the video signal X1 and the detection result by the CM detector 110.
  • the moving image replacement unit 100 includes a moving image reproduction control unit 120, a selector 130, and a moving image database 150.
  • the CM detector 110 has a function of detecting whether or not a broadcast program is being CM based on the CM signal X2. For example, the CM detector 110 measures the voltage level of the CM signal X2, and detects whether or not the voltage value exceeds a predetermined threshold value. The CM detector 110 outputs a signal “1” indicating that the CM is in progress when the threshold is exceeded as a result of detection, and outputs a signal “0” indicating that the main part is not exceeded when the threshold is not exceeded. Output.
  • the CM is discriminated by the magnitude of the voltage of the CM signal X2 has been exemplified.
  • the detection target may be changed as appropriate.
  • the CM detector 110 can also determine whether the CM is in progress based on a signal output from a circuit that is opened and closed in response to the input of the CM signal X2.
  • the moving image reproduction control means 120 has a function of controlling reproduction of the moving image V to be replaced instead of CM.
  • the moving image V acquired from the moving image database 150 is reproduced while the signal “1” indicating that the CM is being received is received from the CM detector 110.
  • the selector 130 has a function of selecting either one of the moving image based on the video signal X1 of the program and the moving image V reproduced by the moving image reproduction control means 120.
  • the selector 130 can be configured by a multiplexer, for example.
  • the selector 130 receives the signal “1” indicating that the CM is in progress from the CM detector 110, the selector 130 selects the moving image V reproduced by the moving image reproduction control unit 120 and passes it to the encoder 140.
  • the selector 130 selects a moving image based on the video signal X 1 of the program and passes it to the encoder 140.
  • Encoder 140 has a function of encoding an input moving image and converting it into stream format data Y.
  • the converted stream data Y is passed to the distribution server 20.
  • the moving image database 150 is a database that stores moving image files that can be replaced instead of CMs.
  • the moving image reproduction control means 120 and the moving image database 150 are provided inside the CM corresponding encoder 10a, but these may be provided outside the CM corresponding encoder 10a.
  • FIG. 3 is a schematic diagram illustrating an example of the configuration of the user viewing device 30a according to the present embodiment.
  • the user viewing device 30 a in the present embodiment includes a moving image playback player 310 and an output device 320.
  • the moving image reproduction player 310 has a function for decoding the stream data Z received from the distribution server 20 and reproducing a moving image and sound. For example, by installing the above-described player application for moving image reproduction in the user viewing device 30a, the user viewing device 30a can function as the moving image reproduction player 310.
  • the output device 320 provides a user with an interface for displaying a moving image, and examples thereof include a liquid crystal display, an organic EL display, and a CRT display.
  • FIG. 4 is a flowchart showing an example of a processing flow by the CM-compatible encoder 10a according to the present embodiment.
  • the CM-compatible encoder 10a receives a video signal and a CM signal of a program from a broadcasting station or the like, and determines whether or not the program is in a CM based on the CM signal (step S41).
  • the video of the CM part is replaced with another video (step S42).
  • the video of the program is passed to the encoder 140 as it is.
  • a moving image based on the video signal of the program is passed to the encoder 140.
  • another moving image V is passed to the encoder 140 instead of the CM.
  • the encoder 140 encodes the received moving image and outputs it as stream data Y (step S43).
  • the video of the CM portion of the program is converted to another video in real time. It can be encoded after being replaced and distributed. Therefore, for example, even when the copyright of the CM is not processed, when a TV program is broadcast, it is possible to simultaneously distribute the TV program that has been replaced with a CM having no problem almost simultaneously with the broadcast.
  • the user viewing device 30a only has to install a conventional player for moving image playback, and it is not necessary to install a special application for replacing the CM on the user viewing device 30a. .
  • the moving image replacement unit 100 is provided upstream from the encoder 140, and the CM 140 is encoded after the CM portion is replaced with another moving image.
  • the present invention is not limited to this, and a means for replacing the moving image is provided downstream of the encoder 140, and the user at the distribution server 20 after replacing the portion of the stream data corresponding to the CM with the stream data related to another moving image. It may be distributed to the viewing device 30.
  • a program audio / video signal is delivered to a CM-compatible encoder 10a by HD-SDI (High Definition Serial Digital Interface) from a department (program master) that broadcasts the program.
  • HD-SDI High Definition Serial Digital Interface
  • the CM signal that reports ON / OFF due to the voltage difference is converted to digital by the driver and delivered to the CM-compatible encoder 10a.
  • program broadcasting and video switching were realized.
  • the CM video can be distributed seamlessly by switching from the main program to another CM video on the CM-compatible encoder 10a.
  • the user viewing device 30 may have a function of accumulating personal information including gender, age, and place of residence, viewing data history including viewing programs and viewing time, and transmitting the history data to a predetermined server. . As a result, the user's viewing history is totaled, and reporting by program work becomes possible.
  • FIG. 5 is a schematic diagram showing a configuration of a content distribution system 1b according to another embodiment of the present invention.
  • the content distribution system 1b includes a time stamp compatible encoder 10b, a CM signal transmission server 40, a distribution server 20, a moving image database 50, and a user viewing device 30b.
  • the transmission server 40, the moving image database 50, and the user viewing device 30 b are configured to be connected via the network N.
  • the time stamp compatible encoder 10b receives the video signal X1, converts it into stream format data, and outputs the stream data Y with the time stamp added.
  • the distribution server 20 receives the stream data Y with the time stamp from the time stamp compatible encoder 10b, and performs processing to distribute the stream data Z with the time stamp to the user viewing device 30b.
  • a delivery delay of several seconds to several minutes occurs after the delivery server 20 receives the stream data Y and delivers the stream data Z.
  • the CM start time and end time are transmitted to the user viewing device 30 during this distribution delay.
  • the CM signal transmission server 40 performs a process of receiving the CM signal X2 and transmitting information related to the start time and end time of the CM in the program to the user viewing device 30b.
  • the moving image database 50 is a database that stores moving image files that can be replaced instead of CMs.
  • a video distribution server for distributing the video stored in the video database 50 is connected to the network N, and the video distribution server responds to a request from the user viewing device 30b.
  • the moving image stream data stored in the moving image database 50 is distributed to the user viewing device 30b.
  • the user viewing device 30b receives the stream data Z with the time stamp added from the distribution server 20. In parallel with this, the user viewing device 30b receives information on the start time and end time of the CM from the CM signal transmission server 40. Then, when the user viewing device 30b reproduces the video of the program based on the stream data Z, the user viewing device 30b refers to the time stamp added to the stream data Z, and the time stamp is received from the CM signal transmission server 40. During the period from the start time to the end time, the moving image V acquired from the moving image database 50 is reproduced instead of the moving image based on the stream data Z.
  • FIG. 6 is a schematic diagram showing an example of the configuration of the time stamp compatible encoder 10b according to the present embodiment.
  • the time stamp compatible encoder 10b in this embodiment includes an encoder 140, a time measuring means 160, and a time stamp adding means 170.
  • Encoder 140 has a function of encoding an input moving image and converting it into stream format data Y.
  • the moving image based on the video signal X1 or the moving image V to be replaced in place of the CM is input to the encoder 140.
  • the moving image based on the video signal X1 is used. Is input to the encoder 140.
  • Time measuring means 160 has a function for measuring time, and includes, for example, a clock.
  • a time stamp adding unit 170 to be described later measures a time that is a basis for adding a time stamp.
  • the time stamp adding unit 170 has a function of adding a time stamp based on the time acquired from the time measuring unit 160 to the stream data output from the encoder 140.
  • the stream data Y with the time stamp added to each frame is output from the time stamp adding means 170 and passed to the distribution server 20.
  • Time stamp includes information indicating the time when an event occurred.
  • the time stamp is used to specify the time when a CM flows in a program, and even if it indicates a date or time, it indicates an elapsed time from the start of the program. There may be.
  • FIG. 7 is a schematic diagram illustrating an example of the configuration of the CM signal transmission server 40 according to the present embodiment.
  • the CM signal transmission server 40 in this embodiment includes a CM detector 110, a time measuring unit 410, and a CM information transmission unit 420.
  • the CM detector 110 has a function of detecting whether or not a broadcast program is being CM based on the CM signal X2.
  • the clock means 410 has a function for measuring time, like the clock means 160. That is, it is preferable that the time measuring means 160 and the time measuring means 410 are synchronized so that the time measured by the time measuring means 410 and the time measured by the time measuring means 160 are the same.
  • the CM information transmission means 420 has a function of transmitting information related to the time when the CM flows in the program to the user viewing device 30b. More specifically, the CM information transmission means 420 is based on the signal output from the CM detector 110 and the time information acquired from the time measuring means 410 (hereinafter referred to as “CM start time”). And the time when the CM ends and returns to the main part (hereinafter referred to as “CM end time”), and transmits these as CM information to the user viewing device 30b.
  • CM start time the time information acquired from the time measuring means 410
  • CM end time the time when the CM ends and returns to the main part
  • the CM information transmission unit 420 receives the signal output from the CM detector 110, acquires the time when the signal changes from “0” to “1” from the time measuring unit 410, and obtains this time from the CM start time
  • the CM start signal included in the message is transmitted to the user viewing device 30.
  • the time when the signal received from the CM detector 110 changes from “1” to “0” is acquired from the time measuring unit 410, and the CM end signal including this as the CM end time is transmitted to the user viewing device 30. .
  • time stamp adding unit 170 and the CM information transmitting unit 420 may be configured to refer to the same time measuring unit.
  • time stamp compatible encoder 10b and the CM signal transmission server 40 are configured as separate bodies, but the present invention is not limited thereto, and both may be combined into one.
  • FIG. 8 is a schematic diagram illustrating an example of the configuration of the user viewing device 30b according to the present embodiment.
  • the user viewing device 30 b in this embodiment includes a moving image replacement unit 330 in addition to the moving image playback player 310 and the output device 320.
  • the moving image replacement unit 330 performs a process of replacing a CM part of a broadcast program that has been simulcast in real time on the network N with another moving image, and can be provided as a software application. .
  • the moving image replacement unit 330 since the moving image replacement unit 330 is provided on the user viewing device 30b side, the CM portion of the distributed program can be replaced with a separate moving image for each user.
  • the moving image replacement unit 330 includes a CM information receiving unit 331, a CM information recording unit 332, a time stamp collating unit 333, a moving image acquiring unit 334, and a selector 335.
  • the CM information receiving unit 331 receives CM information from the CM signal transmission server 40 and performs necessary processing.
  • the CM information receiving unit 331 stores the CM start time included in the CM start signal in the CM information recording unit 332. Further, in response to receiving the CM start signal, the CM information receiving unit 331 instructs the moving image acquisition unit 334 to acquire a moving image from the moving image database 50.
  • the CM information receiving unit 331 stores the CM end time included in the CM end signal in the CM information recording unit 332.
  • the CM information recording unit 332 includes a memory for recording CM information including a CM start time and a CM end time.
  • the time stamp collating unit 333 matches the time stamp added to the stream data Z received from the distribution server 20 with the CM information stored in the CM information recording unit 332, and each frame of the stream data Z is a CM. Or the main part, that is, whether the stream data Z is the CM part or the main part when the stream data Z is reproduced. For example, when the time stamp added to the stream data Z is included in the CM end time from the CM start time, it is determined that it is a CM part, and in other cases, it is determined that it is a main part.
  • the moving image acquisition unit 334 performs processing for acquiring a moving image from the moving image database 50.
  • the moving image acquisition unit 334 requests the moving image database 50 to distribute the moving image.
  • the moving image database 50 delivers a moving image to the user viewing device 30b in response to a request from the user viewing device 30b.
  • the moving image database 50 receives the user ID from the user viewing device 30b in addition to the request for the moving image, and thereby attributes such as the user's sex, age, and address associated with the user ID and the user's viewing.
  • a moving image corresponding to the history can be individually distributed for each user.
  • the selector 335 has a function of selecting one of the stream data Z distributed from the distribution server 20 and the moving image acquired from the moving image database 50.
  • the selector 335 receives a signal indicating that it is a CM portion from the time stamp collating means 333, the selector 335 selects the moving image acquired from the moving image database 50 and passes it to the moving image reproduction player 310. Further, when a signal indicating that it is the main part is received from the time stamp verification unit 333, the stream data Z distributed from the distribution server 20 is selected and passed to the moving image reproduction player 310.
  • the user viewing device 30b includes a buffer that temporarily stores the stream data Z distributed from the distribution server 20 and a buffer that temporarily stores the moving image acquired from the moving image database 50. It is preferable that the processing timing from the reception of the data to the reproduction of the moving image can be adjusted as necessary.
  • FIG. 9 is a flowchart showing an example of a processing flow by the content distribution system 1b according to the present embodiment.
  • the time stamp compatible encoder 10b encodes a video signal of a program received from a broadcasting station or the like in real time, adds a time stamp, and passes it to the distribution server 20 (step S91).
  • the distribution server 20 distributes the stream data with the time stamp added to the user viewing device 30b (step S92).
  • the user viewing device 30b Upon receiving the stream data, the user viewing device 30b determines whether the stream data is a CM part or a main part based on the time stamp added to the stream data (step S93). Note that the user viewing device 30b compares the CM start time and CM end time separately received from the CM signal transmission server 40 with the time stamp, thereby determining step S93.
  • the stream data received from the distribution server 20 is selected (step S94).
  • the stream data received from the distribution server 20 is selected (step S95).
  • the user viewing device 30b reproduces the stream data for the main part of the program, and reproduces another moving image replaced with the stream data for the CM part (step S96).
  • FIG. 10 is a timing chart showing an example of processing timing by the user viewing device 30b according to the present embodiment.
  • a main program was broadcast from 9:53:00 to 9:53:00
  • CM was broadcast from 9:53:00 to 9:54:00
  • the main program was broadcast from 9:55:00.
  • the content broadcast from about 9:50 to about 9:55 is reproduced schematically by the user viewing device 30.
  • the CM signal transmission server 40 includes a CM start signal including that the CM start time is 9:53:00 (09:53:00). Send.
  • the user viewing device 30 receives this CM start signal from the CM signal transmission server 40 (step S101).
  • the user viewing device 30b receives the CM start signal immediately after the time 9:53:00, but at that time, a portion to which a time stamp of about 9:50:30 is added, That is, the contents of the program broadcast at about 9:50 are reproduced.
  • the user viewing device 30b requests the moving image database 50 to distribute moving images (step S102).
  • the moving image database returns the moving image (step S103).
  • the user viewing device 30b receives a CM end signal including that the CM end time is 9:54:00 (09:54:00) from the CM signal transmission server 40 (step S104).
  • the user viewing device 30b refers to the time stamp added to the stream data Z distributed from the distribution server 20, and the added time stamp is equal to the CM start time. At this time, instead of playing the stream data Z, the user viewing device 30b replaces and reproduces the moving image acquired from the moving image database 50 (step S105).
  • the user viewing device 30b plays the moving image acquired from the moving image database 50. Then, when the time stamp added to the stream data Z received from the distribution server 20 becomes equal to the CM end time, the user viewing device 30b resumes the reproduction of the stream data Z and reproduces the main video (step). S106).
  • a program broadcast from a broadcasting station is encoded in real time and distributed on the network N, it is distributed with a time stamp added. Then, on the user viewing device 30b side, the CM portion of the distributed program video can be replaced with another video based on the time stamp. At this time, real-time distribution of the video advertisement in accordance with the user attribute for the CM portion of the video that has been simulcast by changing the video to be replaced individually for each user based on the user attribute, viewing history, etc. Reporting becomes possible.
  • the user viewing device 30b includes a moving image replacement unit 330 upstream from the moving image playback player 310, and the moving image playback player 310 performs decoding after replacing the CM portion with another moving image. did.
  • the present invention is not limited to this, and means for replacing a moving image downstream of the moving image playback player 310 is provided. After the stream data Z is decoded, the CM portion is replaced with another moving image and passed to the output device 320. Also good.
  • the present invention is not limited to the above-described embodiment, and can be implemented in various other forms without departing from the gist of the present invention.
  • the said embodiment is only a mere illustration in all points, and is not interpreted limitedly.
  • a part of the processing steps can be omitted in the above-described processing steps as long as the processing contents do not contradict, or the order of the processing steps can be arbitrarily changed, or can be executed in parallel.
  • the content that is the basis of distribution is not limited to a program broadcast from a broadcast station, but can be applied to video-on-demand video, webcast video, and any other content.
  • Another moving image for replacement is not limited to CM, and content such as an arbitrary moving image or a still image can be used.
  • the part to be replaced is not limited to the CM part, and any part that can be detected by some means in the content may be replaced.
  • the contents disclosed in this specification can be applied to a portion where copyright processing is not performed.
  • the streaming distribution of the video has been described.
  • the video distribution method is not limited to the streaming distribution, and download distribution that cannot be played until the download is completed or any other distribution method is applied. Can do.
  • CM information (CM start time information and CM end time information) may be added to the stream data.
  • a time stamp data may be transmitted to the user viewing device separately from the stream data.
  • both the time stamp and the CM information may be included in the stream data and transmitted to the user viewing device.
  • the above-described embodiment can be applied to SCTE-35 and other standards.
  • the configuration may be changed as appropriate in accordance with SCTE-35 and other standards.
  • the CM signal transmission server 40 can acquire CM information (CM start time information and CM end time information) in accordance with SCTE-35 and other standards. And similarly to the process demonstrated by embodiment mentioned above, the process which transmits the acquired CM information to the user viewing-and-listening apparatus 30b can also be performed.
  • CM information CM start time information and CM end time information
  • CM information (CM start time information and CM end time information) may reach the user viewing device 30b instead of staying at the broadcast station. Therefore, in a form in which the user viewing device 30b can acquire and use CM information in accordance with SCTE-35 or other standards, the process of the CM signal transmission server 40 transmitting the CM information to the user viewing device 30b is omitted. You can also.
  • Encoding device (10a CM compatible encoder) (10b Encoder for time stamp) 100 Video replacement part (replacement part) 110 CM detector 120 Video playback control means 130 Selector 140 Encoder 150 Video database 160 Timekeeping means 170 Time stamp adding means 20 Distribution server 30 (30a, 30b) User viewing device 310 Video playback player 320 Output device 330 Video replacement unit (replacement) Part) 331 CM information receiving means 332 CM information recording means 333 Time stamp collating means 334 Movie acquisition means 335 Selector 40 CM signal transmission server 410 Time measuring means 420 CM information transmission means (transmission means) 50 Video database N Network V Video X1 Video signal X2 CM signal Y, Z Stream data

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Astronomy & Astrophysics (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

Dans un système de distribution de contenus selon la présente invention, où des contenus reçus en provenance d'une station de diffusion sont codés en temps réel et répartis sur un réseau, un signal CM, qui indique si un CM est en cours de diffusion, est reçu en provenance de la station de diffusion. On détecte si une partie du CM est en cours de diffusion sur la base du signal CM, et sur la base du résultat de la détection, la partie du CM des contenus de diffusion est remplacée par une vidéo différente, puis est distribuée et lue.
PCT/JP2016/063655 2015-05-08 2016-05-06 Système de distribution de contenus WO2016181901A1 (fr)

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JP6948934B2 (ja) * 2017-12-19 2021-10-13 日本放送協会 コンテンツ加工システム、端末装置、およびプログラム
JP7162295B2 (ja) * 2018-08-01 2022-10-28 株式会社radiko セグメントファイル分割機能を備えたストリーム配信システム及びプログラム
JP7326712B2 (ja) * 2018-09-13 2023-08-16 日本電気株式会社 テレビ放送の送信システム、テレビ放送の送信装置、テレビ放送の送出装置及びテレビ放送の送信機の切り替え方法
JP7171416B2 (ja) * 2018-12-20 2022-11-15 Ｔｖｓ Ｒｅｇｚａ株式会社 放送信号受信装置、放送信号受信方法

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