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    • 专利摘要:
    CONTENT SUPPLY DEVICE AND METHOD, PROGRAM, CONTENT DEVICE AND REPRODUCTION METHOD, PROGRAM, AND CONTENT DISPLAY SYSTEMThe present invention relates to a content supply device, a content supply method, a content playback device, a content playback method, a program and a content display system, in that you can quickly and continuously play broadcast content and distribution content related to each other. The content supply device of the present invention is provided with a generation unit for generating a video switching command to allow a content playback device to perform a process in relation to switching the video content that is played, a unit broadcasting to broadcast embedded video content with the video switching command generated via a broadcasting network and a distribution unit to distribute video content via the Internet. The present invention can be applied to systems for viewing content using a broadcast network and the Internet.
    公开号:BR112013006942A2
    申请号:R112013006942-2
    申请日:2011-09-22
    公开日:2020-09-29
    发明作者:Naohisa Kitazato
    申请人:Sony Corporation；
    IPC主号:
    专利说明:

    “CONTENT SUPPLY DEVICE AND METHOD, MEANS OF —STORAGE, DEVICE AND CONTENT REPRODUCTION METHOD, AND, CONTENT DISPLAY SYSTEM” “5 CAMPODA INVENTION This description refers to a unique content supply device, to a method of supplying content, to a device for reproducing content, to a method of reproducing content, to a program and to a content display system and, in particular, to a device for supplying content, to a method of supplying content, a content reproduction device, a method of content reproduction, a program and a content display system that enable broadcast content broadcast by digital television broadcast and distributed content, distributed through the Internet, to be reproduced in association with each other.
    BACKGROUND OF THE INVENTION Conventionally, digital television broadcasting has been promoted, and digital television broadcasting using terrestrial waves, satellite waves and the like has spread. Not only broadcasting video content as so called programs, but also broadcasting data has been carried out as broadcasting digital television. According to data dissemination, it is possible, for example, to display information related to a program that is broadcast and information unrelated to a program that is broadcast (whose information unrelated to a program that is broadcast is - notification of other programs, news, a weather forecast, traffic information and the like) (see Patent Literature 1, for example). In the meantime, some reception devices for broadcasting digital television, reception devices that are typified by digital television receivers, have a VOD (Video On Demand) function that enables video content that you want to view to be obtained by through the Internet and reproduced in arbitrary synchronism.
    CITATION LIST - 5 "PTL PATENT LITERATURE 1 Japanese Patent Open 2006-50237 SUMMARY OF THE INVENTION
    TECHNICAL PROBLEM As described above, a digital television receiver with an existing VOD function can receive and reproduce video content broadcast by digital television broadcast (video content which will be referred to below as broadcast content) and distributed video content through the Internet (video content which will be referred to below as distributed content).
    However, uniform continuous reproduction of broadcast content and content distributed in a way like this to alternately switch and display the video of the broadcast content and the video of the distributed content that are related to each other, for example, has not been realized.
    The present description was made in view of a situation like this, and the objective is to achieve uniform continuous reproduction of broadcast contents and distributed content related to each other.
    TROUBLESHOOTING In accordance with a first aspect of the present description, a content supply device is provided to supply video content to a content playback device, the content supply device including: a generation section for generating a video switching command to make the content playback device perform a process related to switching the video content that is played; a broadcast section for broadcasting the embedded video content with the video switching command generated through a broadcast network; and a distribution section to distribute video content over the Internet. : 5 The generation section can generate the video switching command as a pre-selection command to make a user confirm that he 'switches the video content that is played before the switching timing of the video content that is played, one preload command to make the video content as a switching destination obtained before the switching timing of the video content is played or a switching command to make the video content play back switched.
    The generation section can generate the video switching command that includes an element that indicates whether to perform a self-return during the return to a continuous stream of video before switching after switching the video content that is played.
    The generation section can generate the video switching command that includes an element that indicates whether user authentication is performed when obtaining the video content as the switching destination.
    The generation section can generate the video switching command such as the pre-selection command, the preload command, the switching command, a switching enable command to define a state of being switchable in the corresponding video contents to a user-specified viewing point or a toggle-disabling command to end the state of being switchable in the video content corresponding to a user-specified viewing point.
    The distribution section can also distribute the embedded video content with the video switching command generated via the Internet,
    According to the first aspect of the present description, a method of supplying content from a content supply device is provided for supplying video content to a content playback device, the method of supplying content including: at. 5 - content supply device, a generation step to generate a video switching command to make the content playback device perform a process related to switching the video content that is played; a broadcasting step to broadcast the embedded video content with the video switching command generated by means of a broadcasting network; and a distribution step to distribute video content over the Internet.
    In accordance with the first aspect of the present description, a program is provided to make a computer to supply video content to a content playback device function as: one - generation section to generate a video switching command to make the device content playback perform a process related to switching the video content that is played; a broadcasting section for broadcasting the embedded video content with the video switching command generated through a broadcasting network; and a distribution section to distribute video content over the Internet.
    In the first aspect of the present description, a video switching command to make a content playback device perform a process related to switching the video content that is played is generated, the video content embedded with the video switching command. generated are broadcast via a broadcast network and video content is distributed via the Internet.
    In accordance with a second aspect of the present description, a content playback device is provided for reproducing video content supplied from a content supply device, the content playback device including: a retrieval section for obtaining content from video broadcast over a broadcast network or video content distributed over the Internet; an analysis section to analyze a video switching command embedded in the content of. 5 videos obtained; and a control section to control a process related to the switching of the video content that is played back according to a result of the analysis of the video switching command.
    The video switching command can be a pre-selection command to make a user confirm that he switches the video content that is played before the switching synchronism of the video content that is being played, a preload command to make the video content as a switching destination obtained before the switching timing of the video content is played or a switching command to make the video content play — switched.
    The content playback device according to the second aspect of the present description may additionally include a temporary storage section for temporarily storing the video content broadcast over the broadcast network, in which the switching-video command may include an element which indicates whether to perform an auto-return during the return to a continuous stream of video before switching after switching the video content that is played.
    In accordance with the second aspect of the present description, a method of reproducing content from a content playback device is provided for reproducing video content supplied from a content supply device, the method of reproducing content including: by the content reproduction device, a step of obtaining to obtain video content broadcast through a broadcast network or video content distributed through the Internet; an analysis step to analyze a video switching command embedded in the obtained video content; and a control step to control a process related to the switching of the video contents that are played according to a result of the analysis of the command. 5 video switching. According to the second aspect of the present description, a program is provided to make a computer to play video content supplied from a content supply device work as: a section for obtaining video content broadcast by means of a broadcast network or video content distributed via the Internet; an analysis section to analyze a video switching command embedded in the video content obtained; and a control section to control a process related to the switching of the video content that is played according to a result of the —analyzed video switch command.
    In the second aspect of this description, video content broadcast over a broadcast network or video content distributed via the Internet is obtained, a video switching command embedded in the video content obtained is analyzed and a process related to switching of the video content that is played is controlled according to a result of the analysis of the video switching command.
    According to a third aspect of the present description, a content display system is provided that includes a content delivery device and a content playback device, wherein the content supply device includes a generation section for generating a video switching command to make the content playback device perform a process related to the switching of the video content being played, a broadcasting section to broadcast the embedded video content with the video switching command generated by means of a broadcast network and a distribution section for distributing video content over the Internet. In addition, the content playback device includes a retrieval section for - 5 - retrieving video content broadcast via the broadcast network or 'video content distributed over the Internet, an analysis section - for analyzing the video switching command embedded in the obtained video content and a control section to control the process related to the switching of the video content that is played according to a result of the analysis of the video switching command. In the third aspect of the present description, a content supply device generates a video switching command to make a content playback device perform a process related to the switching of the video content that is played, it broadcasts the embedded video content with the video switching command generated through a broadcast network and distributes video content via the Internet. In addition, the content playback device obtains the video content broadcast via the broadcast network or the video content distributed via the Internet, analyzes the video switching command embedded in the video content obtained and controls the process related to the switching of video content that is played according to a result of the analysis of the video switching command.
    ADVANTAGE EFFECTS OF THE INVENTION In accordance with the first aspect of the present description, broadcast content and distributed content capable of continuous reproduction can be supplied to one receiving side. According to the second aspect of the present description, broadcast content and distributed content related to each other can be played continuously.
    According to the third aspect of the present description, uniform continuous reproduction of the broadcast contents and the distributed contents related to each other can be performed.
    BRIEF DESCRIPTION OF THE DRAWINGS. 5 The figure | it is an explanatory diagram of a first scenario of continuous reproduction (substitution of a commercial broadcast). - Figure 2 is an explanatory diagram of a second scenario of continuous reproduction (program with a variable duration).
    Figure 3 is an explanatory diagram of the second scenario of - continuous reproduction (program with a variable duration).
    Figure 4 is an explanatory diagram of a third scenario of continuous reproduction (interactive program).
    Figure 5 is an explanatory diagram of the third scenario of continuous reproduction (interactive program).
    Figure 6 is an explanatory diagram of a fourth scenario of continuous reproduction (program specified by arbitrary picture frame).
    Figure 7 is an explanatory diagram of the fourth scenario of continuous reproduction (program specified by arbitrary picture frame).
    Figure 8 is an explanatory diagram of a fifth scenario of continuous reproduction (program with multiple points of view type panorama).
    Figure 9 is an explanatory diagram of the fifth scenario of continuous reproduction (program with multiple points of view type panorama).
    Figure 10 is an explanatory diagram of the fifth scenario of continuous reproduction (program with multiple points of view type panorama).
    Figure 11 is an explanatory diagram of a sixth scenario of continuous reproduction (program with multiple points of view type theater).
    Figure 12 is an explanatory diagram of the sixth scenario of continuous reproduction (program with multiple points of view type theater).
    Figure 13 is a block diagram showing an example - S —configuration of a content display system in which the present description is applied.
    - Figure 14 is a block diagram showing an example of configuring a content playback device.
    Figure 15 is an explanatory diagram of the transmission timing of the video switching commands.
    Figure 16 is a diagram showing elements of a switching command.
    Figure 17 is a diagram of assistance in explaining a self-return mode.
    Figure 18 is a diagram showing elements of a preload command.
    Figure 19 is a diagram showing elements of a pre-selection command.
    Figure 20 is a diagram showing elements of a switching enable command.
    Figure 21 is a diagram showing elements of a VRT.
    Figure 22 is a diagram showing elements of a switching disable command.
    Figure 23 is an explanatory diagram of an example of use - of a pre-selection command in the auto-switching operation.
    Figure 24 is an explanatory diagram of an example of using a pre-selection command and a preload command in the automatic switching operation.
    Figure 25 is an explanatory diagram of an example of using a switching command in manual switching operation.
    Figure 26 is an explanatory diagram of an example of using switching commands in manual switching operation.
    Figure 27 is a flow chart of assistance in explaining + “5 a reproduction process by the content reproduction device. : Figure 28 is a flow chart of assistance in explaining - a process corresponding to the pre-selection command.
    Figure 29 is a flow chart of assistance in explaining a process corresponding to the preload command.
    10 Figure 30 is a flow chart of assistance in explaining a process corresponding to the switching command.
    Figure 31 is a flow chart of assistance in explaining a process corresponding to the switching enable command.
    Figure 32 is a flowchart of assistance in explaining a process corresponding to the switching disable command. Figure 33 is a block diagram showing an example of a computer configuration.
    DESCRIPTION OF THE MODALITIES The best way to carry out the present description (the best mode that will be referred to below as modalities) will be described below in detail in relation to the drawings.
    First, there will be a description of the scenarios of continuous reproduction of the broadcast contents and of the distributed contents related to each other, these scenarios that are performed in a content viewing system as a modality of the present description. Incidentally, two types of content, that is, streaming content distributed by streaming distribution and storage content obtained by storing content distributed before the playback timing of the content on one receiving side are considered to be distributed content supplied alongside reception via the Internet. Incidentally, video content such as storage content can also be transferred via a broadcast network before the content's playback timing. + 5 The figure | it is an explanatory diagram of a first scenario of continuous reproduction (substitution of a commercial broadcast). In this "scenario, when a commercial (CM) is started while a viewer is viewing an À program as broadcast content, a specialized commercial, specialized for the viewer, which commercial is provided by the storage content or streaming content, is used instead of commercial broadcast and reproduced. A local commercial according to the viewer's address or a commercial according to the viewer's preferences, for example, is considered to be the specialized commercial. Suppose profile information, such as the viewer address, preferences, and the like, be registered on a receiving device in advance, and that the commercial broadcast is replaced by the specialized commercial only on the receiving device on which the profile information is recorded.
    Figure 2 and Figure 3 are assistance diagrams in explaining a second scenario of continuous reproduction (program with a variable time duration). In this scenario, at the beginning of a program composed of a plurality of parts, such as a news program, for example, as broadcast content, a short version (S) provided by the broadcast content or a long version (L) provided by - distributed content can be chosen for each part, as shown in an example of the screen display in figure 3. It is also possible to choose neither the short version nor the long version. In this way, the program's playing time becomes a variable length. Depending on the choice of viewer, the end time of the distributed content may be after the original end time of the broadcast content.
    In this case, there is a problem when it is desired that a program (broadcast contents) following the broadcast contents in question be viewed.
    As a measure for this, it is enough to interrupt the reproduction of the contents distributed at the beginning of the next program (broadcast), or to temporarily store the next program (broadcast contents). Incidentally, it is enough to reproduce "the contents distributed until the end of them when the program (broadcast contents) following the broadcast contents in question is not displayed.
    Figure 4 and Figure 5 are diagrams of assistance in explaining a third scenario of continuous reproduction (interactive program). In this scenario, at the beginning of a travel program as broadcast content, an introduction is constituted at a gate of an old city in the form of a labyrinth, a city that is famous as a tourist spot, as shown in figure 5, by example.
    A free walking time is defined with the gate as a point of separation.
    Video parts of walking on the roads in the form of a labyrinth and through the structures shown in figure 6 are prepared.
    The viewer is allowed to make choices at road junctions or stores and thereby switch to individual branched video parts.
    Then, the viewer can receive and reproduce distributed content corresponding to an infinite number of various walking courses as free routes on the reception side while sequentially selecting the distributed content.
    Courses that not only pass through various streets, markets and the like, but also enter stores, are therefore considered, depending on the viewer's choices.
    Additionally, purchases are made possible after user authentication in a store by registering user information about the viewer in advance.
    In addition, a meeting point can be defined on the various routes, so that a return (video switching) can be made to the broadcast contents only when the viewer can arrive at the meeting point at a predetermined time.
    Figure 6 and Figure 7 illustrate a fourth scenario of continuous reproduction (program specified by arbitrary figure frame). In this scenario, in a sports program, such as a broadcast of - 5 football retransmission or the like as broadcast content, photography: is performed by some high definition video cameras (4K 2K or more) 'arranged in such positions to have a panoramic view of the whole of a field where football is being played, and a plurality of parts of video obtained as a result of the photograph are supplied beside the reception as broadcast content or content for continuous transmission.
    On the receiving side, the viewer defines a picture frame of an arbitrary size in an arbitrary position (picture frame which will be referred to below as an arbitrary picture frame), and the specified arbitrary picture frame is cut out and displayed at from the broadcast content received 15º or from the broadcast content received.
    Incidentally, when the arbitrary figure frame encompasses the figure 1 frame of the broadcast contents and the figure 2 frame of the continuous transmission contents, as shown in figure 7, it is sufficient to receive and reproduce both contents simultaneously, coupling the resulting in each other and then extract an arbitrary picture frame.
    Furthermore, the arbitrary picture frame specified by the viewer can be notified to a transmission side, so that the video corresponding to the arbitrary picture frame is clipped on the transmission side and distributed by the distribution by continuous transmission.
    Figures 8 to 10 illustrate a fifth scenario of continuous reproduction (program with multiple points of view type panorama). In this scenario, as shown in figure 9, the full 360 degrees of the periphery of a camera has an image treated simultaneously with the camera as a center.
    From a plurality of VO viewing point images up to V7 obtained as a result of image processing, the VO viewing point image as an input or the like comprises broadcast content, and the other viewing point images comprise streaming content . Incidentally, it is not necessarily required - 5 - that the full 360 degrees of the periphery be photographed, but a part of the whole of the periphery is also sufficient.
    On the receiving side, the viewer defines a picture frame in an arbitrary direction (picture frame which will be referred to below as an arbitrary picture frame), and the specified arbitrary picture frame is cut out and displayed from the contents of broadcast received or streaming content received. Incidentally, when the arbitrary figure frame encompasses the figure 1 frame of the broadcast contents and the figure 2 frame of the continuous transmission contents, as shown in figure 10, it is sufficient to receive and reproduce both contents simultaneously, coupling the resulting video into each other and then extract the arbitrary picture frame.
    Figure 11 and Figure 12 illustrate a sixth scenario of continuous reproduction (program with multiple points of view type theater). In this scenario, as shown in figure 12, simultaneous image processing is performed with a plurality of video cameras CO to C6 arranged concentrically with a stage, which is an object of photography, as the center. From a plurality of VO viewing point images up to V6 obtained as a result of image processing, the VO viewing point image as an input or the like comprises broadcast content, and the other viewing point images comprise streaming content .
    On the receiving side, the viewer specifies an arbitrary viewing point (camera position), and the image of the viewing point corresponding to the specified arbitrary viewing point is received, reproduced and displayed from broadcast content or broadcast content to be continued. Incidentally, when the specified viewing point differs from an actual camera position, simply receiving and reproducing two corresponding viewing point images. 5 real camera positions, respectively, sandwiching the specified viewing point, and generating video corresponding to the specified viewing point by interpolation processing using these viewing point images.
    [Example of Configuration of the Content Display System] Below, a description of an example of configuration of the content display system as a modality of the present description will be described, a content display system that performs the first to sixth reproduction scenarios. abovementioned.
    Figure 13 shows an example of configuring the content display system.
    This content display system 10 includes a content transmission device 20 and content playback devices 30-1 through 30-n. When content playback devices 30-1 through 30-n need not be individually distinguished from each other, content playback devices 30-1 through 30-n will be referred to below simply as a content playback device 30.
    Incidentally, the content playback device 30 may be present as a separate unit, or may be incorporated into a television receiver, a video recorder or the like.
    The content transmission device 20 includes a content store 21, a command generation section 22, a VRT generation section 23, a broadcast section 24 and a distribution section 25.
    The content store 21 retains video content to be broadcast or distributed. Incidentally, video content consists of a continuous video stream and a continuous audio stream. Command generation section 22 generates a video switching command to make the content receiving device 30 perform a process related to video switching, and transmits the: 5 video switching command to the broadcast section 24 or to the distribution 25. The generated video switching command is embedded and: broadcast in the video stream or in the audio stream of the broadcast content, or embedded and distributed in the video stream or in the audio stream of the broadcast content. continuous transmission.
    The VRT generation section 23 generates a VRT (Visualization Ratio Table) referred to when video is switched on the content receiving device 30, and transmits the VRT to the broadcast section 24 or the distribution section 25.
    The VRT includes information, such as the type of viewing point string, of each of a plurality of multiple viewing point images that form video content, a URL of the fetch destination (URL of the Streaming Stream or the Continuous Flow of the Internet) and the like. Incidentally, details of the VRT will be described below in relation to figure 21.
    Broadcast section 24 reads content to be broadcast as broadcast content from the video content retained by the content store 21, and broadcasts the content as a television broadcast program via a broadcast network 11. Furthermore , the broadcast section 24 embeds and broadcasts the video switching command - generated in the video stream or in the audio stream of the broadcast content.
    Furthermore, the broadcast section 24 stores and broadcasts the generated VRT at a predetermined position of a broadcast signal. Furthermore, the broadcast section 24 stores and broadcasts the generated VRT at a predetermined position of a broadcast signal.
    Additionally, the broadcast section 24 can read content to be broadcast as storage content from the video content retained by the content store 21, and broadcast the content via the broadcast network 11. “5 Distribution section 25 reads content to be distributed as streaming content or storage content 'from the video content retained by the content store 21, and distributes the content to the content receiving device 30 via the Internet 12. Furthermore, in response to a request from the content playback device 30, the distribution section 25 supplies the VRT generated to the content playback device 30 as a source of the request supplied via the Internet 12. Next, figure 14 shows an example of configuration of the content playback device 30. The content playback device 30 includes an operation input section 31, a control section trolley 32, tuner 33, primary separation section 34, retention buffer 35, secondary separation section 36, decoder 37 and switch 38. Content playback device 30 additionally includes a 1 / F of communication 39, a streaming reception section 40, a content storage section 42, a FLUTE processing section 41, a switch 43, a decoder 44 and a command analysis section 45. The operation input section 31 includes, for example, a remote control and a reception section for the remote control (neither the remote control - remote nor the reception section are shown). The operation input section 31 receives an operation from the user, and notifies the user operation to the control section 32. The control section 32 controls various parts of the content playback device 30 based on the user operation entered from the operation input section 31 and a result of the analysis of a received video switching command, the result of which is inserted from the command analysis section 45. Incidentally, control lines connecting control section 32 in the various parts are not shown when appropriate. . 5 Tuner 33 receives a television broadcast signal broadcast over broadcast network 11 and transmits the broadcast signal from: television to primary separation section 34. Primary separation section 34 separates a TS (Continuous Transport Flow) of the broadcast content corresponding to a channel selection from control section 32, and transmits the TS of broadcast content to the retention buffer 35. Under the control of control section 32, in a time of auto-return mode when switching has been made from the broadcast signal to a streaming signal or the like, the retention buffer 35 writes the TS of the broadcast content, but does not read and transmit the TS of the broadcast content to the secondary separation section 36. In other times, the retention buffer 35 simultaneously records and reads the TS from the previous stage, and transmits the TS to the secondary separation section 36. The secondary separation section ia 36 separates the TS from the broadcast content inserted in a video stream and an audio stream, and transmits the video stream and the audio stream to the decoder 37. Furthermore, the secondary separation section 36 transmits the TS that includes storage contents to the FLUTE 41 processing section. Decoder 37 decodes the incoming video stream and the incoming audio stream, and transmits a video signal and an audio signal obtained as a result of the decoding to the switch
    38. Furthermore, decoder 37 extracts a video switching command embedded in the incoming video stream or in the incoming audio stream, and transmits the video switching command to the command analysis section 45.
    Under control of control section 32, switch 38 transmits the input (video signal and audio signal) of decoder 37 or the input of the 5-decoder 44 to a monitor (not shown) at a subsequent stage. Furthermore, under control of control section 32, switch 38 generates a 'video and an audio signal corresponding to an arbitrary picture frame or an arbitrary viewing point by coupling and clipping the input (the signal video and audio signal) from decoder 37 and decoder input 44 - perform interpolation, and transmit the video signal and the audio signal to the subsequent stage.
    The communication 1 / F 39 connects to the content transmission device 20 via the Internet 12. The streaming reception section 40 obtains streaming content from the content transmission device 20 via the I / F 39 and Internet 12, and transmits the streaming content to switch 43.
    The FLUTE 41 processing section extracts the storage contents of the inserted TS from the secondary separation section 36, and transmits the TS to the content storage section 42. The content storage section 42 retains the inserted broadcast storage contents from the FLUTE 41 processing section. The content storage section 42 also retrieves and retains storage content from the content transmission device 20 via —media / Fde communication 39 and from the Internet 12. The content storage section 42 additionally transmits the retained storage contents to switch 43 under the control of control section 32.
    Under control of control section 32, switch 43 transmits the streaming contents from the streaming reception section 40 or the storage contents inserted from the content storage section 42 to decoder 44. Decoder 44 decodes the streaming contents or storage contents inserted from the switch - 5 43, and transmits a video signal and an audio signal obtained as a result of the decoding to switch 38. Furthermore, decoder 44 extracts' a video switching command embedded in the incoming video stream or incoming audio stream, and transmits the video switching command to the command analysis section 45.
    Command analysis section 45 analyzes the entered video switching command and transmits an analysis result to control section 32.
    [Video Switching Command Transmission Timing] Figure 15 shows transmission timing of video switching commands. As shown in the figure, an identical video switching command is consecutively embedded and broadcast in a video stream or audio stream a plurality of times in order to suppress a reception error in the content receiving device 30 .
    The content receiving device 30 switches video immediately in response to the video switching command embedded directly in the video stream or audio stream. Therefore, video switching can be performed very uniformly, compared, for example, with a case where an application program - pre-determined operatively associated with the video streaming is started and video is switched as an operation of the video program. application. [Types of Video Switching Commands] The following describes five types of video switching commands. A video switching command is classified as one of a switching command, a preload command, a pre-selection command, a switching enable command and a switching disable command. Figure 16 shows elements that form a video switching command as a switching command. The switching command controls the content receiving device 30 for switching - video, that is, changing video content that is received and decoded. command id is identification information that identifies the video switching command. When the same video switching command is transmitted consecutively a plurality of times, this command id is the same. Switch id is identification information given to each video switching event. Command code is a code number that indicates that the video switching command is a switching command.
    Target Media Type indicates whether the video stream as a switching destination comprises broadcast content, content distributed in an MP4 format, a format distributed in an MPEG 2 TS format, or content distributed in an AVC TS format. Streaming Target URL represents the URL of the destination for obtaining the video content as the switching destination. Stream Start Position represents the position at the start time of video content playback as the switching destination.
    Auto-return mode designates a non-auto return mode or a auto-return mode. Auto-return mode represents a case where - playback is resumed from a scene from which switching was made to the video as a switching source after the video switching was performed and then the video playing as the switching destination ends. The non-auto return mode represents a different switching case than the auto-return mode.
    When streaming or storage contents are a switching source, all you need to do is store a switching position in auto-return mode. However, when a broadcast signal is a switching source, consideration is required. The non-5 auto-return mode and the auto-return mode in a case where a broadcast signal is a switching source will be described below in relation to figure 17. Figure 17A illustrates the non-auto return mode. Figure 17B illustrates the auto-return mode. As is clear from the figures, in the case of the non-auto return mode, when video switching is performed, the video as the switching source (program A, in the case of figure 17A) proceeds as it is even in a period in which the video is switched, that is, the video as the switching source is replaced with the video of the switching destination.
    On the other hand, in the case of the auto-return mode, when video switching is performed, the video as the switching source (program A, in the case of figure 17A) is recorded in the retention buffer 35, but it is not read or transmitted to the secondary separation section 36 in a period in which the video is switched. When a return is made to the video as the switching and playback source is resumed, playback is performed from the video immediately after switching, which video is stored in the temporary retention storage. Therefore, the viewer visualizes a state of the video as the switching destination that is inserted in the video as the switching source. Description returns to figure 16. Custom Mode indicates whether or not to perform user authentication when obtaining - distributed content and whether or not to use the device ID of the content receiving device 30 or if the user is prompted to enter a password at the time of user authentication. Incidentally, when user authentication is performed, the device ID of the content receiving device 30 or the password must be registered with the content transmitting device 20 in advance. The content transmission device 20 provides a continuous stream of specialized distribution to the user according to a result of user authentication. Automatic Switch Indicator indicates whether to ask the user before switching video.
    - 5 - Switching message is a sentence of question presented to the user during user inquiry before switching video.
    "Figure 18 shows elements that form a video switching command as a preload command. The preload command controls the content receiving device 30 to receive the video content as the switching destination before synchronization. video id command is identifying information that identifies the video switching command. switch id is identifying information given to each video switching event. Command code is a code number that indicates that the switching command video is a preload command Media Target Type indicates whether the video stream as the switching destination comprises broadcast content, content distributed in MP4 format, a format distributed in MPEG2 TS format or content distributed in AVC TS format Streaming Target URL represents the URL of the destination for obtaining the video content as the switching destination Stream Start Position represents the position at the start time production of video content as the switching destination. Auto-return mode designates the non-auto return mode or the auto-return mode. Custom Mode indicates whether or not to perform user authentication when obtaining distributed content and whether or not to use the device TD of the content receiving device 30 or whether to use a password at the time of user authentication. The Auto Switch indicator indicates whether to ask the user before switching video. Time to switch indicates an expected time before the switching is performed for the video of the video contents obtained according to the command. 5 preload. Figure 19 shows elements that form a 'video switching' command as a pre-selection command. The pre-selection command controls the content receiving device 30 to ask the user whether or not video switching takes place before the video switching synchronism.
    command id is identification information that identifies the video switching command. Switch id is identification information given to each video switching event. Command code is a code number that indicates that the video switching command is a pre-selection command.
    Switching message is a question sentence presented to the user during user inquiry prior to video switching. Time to switch indicates an expected time before switching for the video of the selected video content according to the pre-selection command.
    Figure 20 shows elements that form a video switching command as a switching enable command. The switching enable command controls the content receiving device 30 to obtain a VRT to enable viewing point switching in a program with multiple panorama view video or a program with multiple theater view video. .
    The id attribute of the neighbor view element is identifying information that identifies the viewpoint video (hereinafter,
    referred to as adjacent viewpoint video) taken at the camera position adjacent to the camera position where the viewpoint video corresponding to the View object element was taken.
    command id is identifying information that identifies the. 5 video switching command. Switch id is identification information given to each video switching event. Command code is a code number that indicates that the video switch command is a switch enable command. Meta Switching URL represents the URL of the VRT fetch destination.
    Next, a description of a VRT will be made. Figure 21 shows an example of the elements that form a VRT.
    A View object element is information about each part of the viewing point video that forms a program with multiple panorama view points or a program with multiple theater view points, and is described a number of times corresponding to the number of parts of the view point. viewing point video. The View object element has six attributes, that is, an id attribute, a name attribute, a format attribute, a horizontal size attribute, a vertical size attribute and a local attribute.
    The id attribute of the View object element is identification information for the viewpoint video in question. The name attribute describes a name given to the video from multiple viewpoints in question. The format attribute indicates the encoding format of the video from multiple viewpoints in question. The horizontal size attribute - indicates the size in a horizontal direction of the multi-point video in question. The vertical size attribute indicates the size in a vertical direction of the video from multiple viewpoints in question. The local attribute indicates the URL of the destination to obtain the viewpoint video in question.
    Additionally, in the View object element, a neighbor view element that indicates information about video from multiple viewing points taken at a camera position adjacent to a camera position in which the video from multiple viewing points in question was taken is described. as a child element. The neighbor view element has | four attributes, that is, an id attribute, a type attribute, a direction attribute and: a distance attribute. The type attribute indicates a type of viewpoint string (a panorama type or a theater type) that represents the relationship between the viewpoint video specified by the View element and the adjacent viewpoint video. The direction attribute describes the direction of the camera's position where the adjacent viewpoint video was taken in relation to the camera position where the viewpoint video corresponding to the View object element was taken. The distance attribute indicates the viewing angle of the camera position where the video from the adjacent viewing point was taken in relation to the camera position where the video from the viewing point corresponding to the View object was taken.
    Figure 22 shows elements that form a video switching command as a switching disabling command. The - switch disable command controls the content receiving device 30 to invalidate a VRT obtained to disable the switching of the viewing point in a program with multiple panorama view video or a program with multiple viewing point video theater type.
    command id is identification information that identifies the video switching command. Switch id is identification information given to each video switching event. Command code is a code number that indicates that the video switch command is a switch disable command.
    [Description of Operation] The following describes the examples of four types of use of the video switching commands described above. Incidentally, the examples of these four types of use can be adopted in the first up to - 5 - quintosenarios of continuous reproduction described above, as appropriate. i Figure 23 shows an example of using a "preselection" command in automatic switching operation.
    When switching from the broadcast content video to the broadcast content video, a pre-selection command is transmitted before the switching synchronism and a switching command is transmitted in the switching synchronism.
    On the receiving side, the viewer (user of the content playback device 30) is asked to select whether or not to switch video in response to the pre-selection command. In this case, when the viewer makes a selection to perform video switching, automatic switching is defined in the video switching event indicated by the Switch id of the pre-selection command. Conversely, when the viewer makes a selection not to perform video switching, no switching is defined in the event of the specified video switching - by the Switch id of the pre-selection command. When the switching command is subsequently received, video switching is automatically carried out in the case where the automatic switching is set in response to the previous pre-selection command, and the video switching is not carried out in the case where no switching is carried out. defined.
    When the video switching is carried out, an auto-return is performed or not after the video as the switching destination ends is determined according to the Auto-Return Mode of the switching command.
    However, in the case of figure 23, the contents distributed as the switching destination are obtained in response to the switching command, so that the video may not be switched continuously.
    In this way, a method will be described that enables continuous video switching. - 5 Figure 24 shows an example of using a preselection command and a preload command in the automatic switching operation.
    When switching from the broadcast content video to the distributed content video, a pre-selection command and a preload command are transmitted before the switching synchronism, and a switching command is transmitted in the switching synchronism.
    On the receiving side, the viewer (user of the content playback device 30) is asked to select whether or not to switch video in response to the pre-selection command.
    In this case, when the viewer makes a selection to perform video switching, automatic switching is defined in the video switching event indicated by the Switch id of the pre-selection command.
    Then, obtaining the contents distributed as the switching destination is started according to the preload command.
    When the switching command is subsequently received, video switching is carried out uniformly in the event that automatic switching is set in response to the previous pre-selection command.
    When the video switching is performed, an auto-resume is performed or not after the video as the switching destination ends is determined according to the Auto-Return Mode of the switching command. In the case of figure 24, the contents distributed as the destination switching values are obtained according to the preload command, so that the video can be switched continuously. Figure 25 shows an example of using a switching command in manual switching operation. When switching from the video of the contents of 5 s - broadcasting to the video of the distributed contents, a switching command is transmitted in the switching synchronism.
    'On the receiving side, when the Automatic Switching indicator of the switching command is set to manual switching, a message is displayed to the viewer (user of the content playback device 30) to make the viewer select whether or not to switch. of video. In this case, when the viewer makes a selection to perform the video switching, obtaining the contents distributed as a switching destination is initiated, and the video switching is carried out. Incidentally, in a case where the Auto-Return Mode of the switch command is set in Auto-resume mode, broadcast content as a switching source is temporarily stored, and display is set to a paused state, while waiting for an input selection operation from the user. In a case in which the Auto-Resume Mode of the switching command is set to non-auto-return mode, it passes through the broadcast contents as the switching source, and the video of the broadcast contents continues to be displayed while waiting for a selection operation input from the user.
    Figure 26 shows an example of using a switching - enabling command and a switching - disabling command in the switching operation of the display point.
    When executing a program with multiple panorama view points or a program with multiple theater view points, a switching enable command is transmitted, thus making a VRT obtainable on the receiving side. When VRT is obtained on the receiving side, the viewer is notified that viewing points can be specified arbitrarily. When the viewer arbitrarily specifies a viewing point, video of: 5 multiple viewing points corresponding to the viewing point | specified is received and played. When the arbitrary specification of the 'viewing point needs to end, a switching disable command is transmitted. On the receiving side, the obtained VRT is invalidated according to the switching disable command. - [Reproduction Process by the Content Reproduction Device 30] Next, figure 27 is a flow chart of assistance in explaining a reproduction process by the content reproduction device 30.
    Suppose, as a precondition, that the content playback device 30 already has broadcast content received as a broadcast program via the broadcast network 11.
    In step S1, command analysis section 45 determines whether a video switch command is received based on the presence or absence of input from decoder 37. When it is determined — that a video switch command is received, the process proceed to step S2. In step S2, the command analysis section 45 analyzes the video switching command entered from the decoder 37 and performs a process according to a command type indicated by the Command code of the video switching command.
    Incidentally, when it is determined, in step S1, that no video switching command is received, the process proceeds to step S3. In step S3, control section 32 determines whether a display point switching operation is entered by the user. When it is determined that no viewing point switching operation is entered by the user, the process returns to step S1. Incidentally, a viewing point switching operation can be entered by the user only when switching the viewing point is enabled by a process corresponding to the switching enable to be described - 5 - later. When it is determined, in step S3, that a switching operation of the viewing point is entered by the user, the process moves "to step S4. In step S4, control section 32 controls several related parties to receive and play distributed content corresponding to a specified viewing point, and to switch video.
    Figure 28 is a flow chart of assistance in explaining a process in a case where the video switching command received is a pre-selection command (process corresponding to the pre-selection command).
    In step S11, control section 32 presents a question sentence described in the Switching message of the pre-selection command to the user to make the user select whether to switch video or not. In step S12, control section 32 determines whether switching is selected. When video switching is selected, the process proceeds to step S13. In step S13, control section 32 defines the video switching indicated by Switch as well as an automatic switching Incidentally, when the video switching is not selected, in step S12, or when a selection time has become a timeout period (which is determined based on Time to switch), the process corresponding to the pre-selection command ends.
    Figure 29 is a flowchart of assistance in explaining a process in a case where the video switching command received is a preload command (process corresponding to the preload command).
    In step S21, control section 32 determines whether video switching indicated by Switch id has been set to automatic switching in response to a pre-selection command transmitted prior to the pre-charge command. When it is determined that the video switching indicated by Switch id is set to automatic switching, o. 5 - process proceeds to step S22. In step S22, control section 32 controls several related parties to start preparing to receive 'content distributed as a switching destination.
    Incidentally, when it is determined, in step S21, that the video switching indicated by Switch id is not defined in an automatic switching, the process corresponding to the preload command ends.
    Figure 30 is a flow chart of assistance in explaining a process in a case where the video switching command received is a switching command (process corresponding to the switching command).
    In step S31, the command analysis section 45 determines whether the Automatic Switching indicator on the switching command indicates automatic switching (or manual switching). When it is determined that the Automatic Switching indicator on the switching command indicates automatic switching, the process proceeds to step S32. In step S $ 32, command analysis section 45 determines whether content distributed as a switching destination has been preloaded. When it is determined that the contents distributed as the switching destination have not been pre-loaded, the process proceeds to step S33.
    In step S $ 33, it is determined whether video switching indicated by Switch id was set to automatic switching in response to a pre-selection command transmitted prior to the switching command. When it is determined that the video switching indicated by Switch id is set to automatic switching, the process proceeds to step S34. In step S34, the command analysis section 45 notifies a result of the analysis so far from the switching command to the control section
    32. According to this notification, control section 32 controls several related parties to start preparing to receive the distributed content as the switching destination. - 5 In step S35, control section 32 controls several parts | related to switching video to the content distributed as the 'switching destination. Incidentally, when it is determined, in step S32, that the contents distributed as the switching destination have been preloaded, the process of steps S33 and S34 is ignored. Furthermore, when it is determined, in step S33, that the video switching indicated by Switch id has not been set to automatic switching in response to the preselection command transmitted prior to the switching command, steps S34 and S35 are ignored , and the process corresponding to the switching command ends without the video switching taking place. When it has been determined, in step S31, that the Automatic Switching indicator on the switching command does not indicate automatic switching (indicates manual switching), the process proceeds to step S36. In step S36, the command analysis section 45 notifies a result of the —analysis of that switching command temperature to control section 32. According to this notification, control section 32 presents a question sentence described in the Switching command of the control command. switching to the user to make the user select whether to switch the video, and determines whether switching is selected in step S37. When video switching is selected, the process proceeds to step S34 to carry out step S34 and subsequent steps. When video switching is not selected or when a selection time has become a timeout period, the process corresponding to the switching command ends without the video switching being carried out.
    Figure 31 is a flow chart of assistance in explaining a process in a case where the video switching command received is a switching enable command (process corresponding to. 5 - switching enable command). Ú In step S41, control section 32 controls several related 'parts to obtain and analyze a VRT based on the Switching Meta URL of the switching enable command. In step S42, the control section 32 enables the switching of the display point and indicates to the user that a display point can be switched, for example, by the display of arrows that indicate directions of the display points in which switching can be carried out in a screen. Then, the process corresponding to the switching enable command ends.
    Figure 32 is a flow chart of assistance in explaining a process in a case where the video switch command received is a switch disable command (process corresponding to the switch disable command).
    In step S51, the control section 32 invalidates a VRT obtained according to a switching enable command. This disables switching the viewing point. Then, the process corresponding to the switching disable command ends.
    The first to sixth continuous reproduction scenarios exposed are carried out by the reception process described above.
    The series of processes described above can be carried out not only by hardware, but also by software. When the series of processes needs to be performed by software, a program that constitutes the software is installed from program recording media on a computer embedded in dedicated hardware, a general purpose personal computer, for example, which can perform several types of functions by installing various types of programs themselves, and the like.
    Figure 33 is a block diagram showing an example of a computer hardware configuration that performs the series of processes described above by a program.
    : 5 On computer 100, a CPU (Central Processing Unit) 101, a ROM (Exclusive Reading Memory) 102 and a 'RAM (Random Access Memory) 103 are interconnected by a bus 104.
    Bus 104 is additionally connected to an input-output interface 105. The input-output interface 105 is connected to an input section 106 that includes a keyboard, mouse, microphone and the like, a transmission section 107 that includes a screen, a speaker and the like, a storage section 108 that includes a hard disk, a non-volatile memory and the like, a communication section 109 that includes a network interface and the like, and a disk drive 110 to power a removable media 111, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory or the like.
    On computer 100 configured as exposed, CPU 101, for example, loads a program stored in storage section 108 into RAM 103 via the input-output interface 105 and bus 104 and then executes the program. In this way, the series of processes described above is carried out.
    It is realized that the program executed by the computer can be a program to perform the processes in time series in the order described in the present specification, or it can be a program to perform the processes in parallel or in necessary synchronism, such as at a time when a call is made, for example.
    Furthermore, the program can be processed by a computer, or it can be processed by processing distributed over a plurality of computers. In addition, the program can be transferred to a remote computer and executed by the remote computer. Furthermore, in the present specification, a system refers. 5 —a device as a whole formed by a plurality of devices. It is noticed that the modalities of the present description are not: limited to the modalities exposed, and that several changes can be made without departing from the spirit of the present description.
    LIST OF REFERENCE SIGNALS 10 Content display system 11 Broadcast network 12 Internet 20 Content transmission device 21 Content storage 22 Command generation section 23 VRT generation section 24 Broadcast section 25 Distribution section 30 Distribution device content playback 31 Operation input section 32 Control section 33 Tuner 34 Primary separation section 35 Temporary retention storage - 36 Secondary separation section 37 Decoder 38 Switch 39 Communication I / F 40 Continuous transmission reception section
    41 FLUTE processing section 42 Content storage section 43 Switch 44 Decoder - 5 45 Command analysis section 100 Computer: 101 CPU
    权利要求:
    Claims (14)
    [1]
    1. Content supply device to supply video content to a content playback device, characterized by the fact that the content supply device: 5 comprises: a generation section to generate a video switching command to do the content playback device perform a process related to switching the video content that is played; a broadcasting section for broadcasting the embedded video content with the video switching command generated through a broadcasting network; and a distribution section to distribute video content over the Internet. |:
    [2]
    2. Content delivery device according to | claim 1, characterized by the fact that the generation section generates The video switching command as a pre-selection command to make a user confirm - switches the video content that is played before the switching timing of the video content that are played, a preload command to make the video content as a switching destination obtained before the switching timing of the video content is played, or a switching command to make the video content play back switched.
    [3]
    3. Content supply device according to claim 2, characterized by the fact that the generation section generates the video switching command that includes an element that indicates whether an auto-return takes place during the return to a continuous video stream before switching after switching the video content that is played.
    [4]
    í 5 4. Content supply device according to claim 2, Ô characterized by the fact that the generation section generates the video switching command that includes an element that indicates whether user authentication is performed while obtaining the video content as the - switching destination.
    [5]
    5. Content supply device according to claim 2, characterized by the fact that the generation section generates the video switching command such as the pre-selection command, the preload command, the switching command, a switching enable command to define a state of being switchable in the video content corresponding to a point - viewing point specified by the user, or a switching disable command to end the state of being switchable in the video content corresponding to a point user-specified viewing window.
    [6]
    6. Content supply device according to - claim 2, characterized by the fact that the distribution section also distributes the embedded video content with the video switching command generated through the Internet.
    [7]
    7. Method of supplying content from a content supply device to supply video content to a content playback device, characterized by the fact that the method of: content supply comprises: by the content supply device, | A generation step for generating a video switching command to make the content playback device perform a process related to switching the video content that is played; a broadcasting step to broadcast the embedded video content with the video switching command generated by means of a broadcasting network; and a distribution step to distribute video content over the Internet.
    [8]
    8. Storage medium, characterized by the fact that it comprises instructions that, when executed by a computer to supply video content to a content playback device, make it function as: a generation section to generate a video switching command for having the content playback device perform a process related to switching the video content that is played; a broadcast section to broadcast video content | embedded with the video switching command generated by means of a | diffusion network; and | a distribution section to distribute video content via the Internet.
    [9]
    9. Content playback device for reproducing video content supplied from a content supply device, characterized by the fact that the content playback device comprises: a section for obtaining video content broadcast by means of a broadcast network or video content distributed through the Internet; It is an analysis section to analyze a video switching command embedded in the obtained video content; and a control section to control a process related to the switching of the video contents that are played according to a result of the analysis of the video switching command.
    [10]
    10. Content playback device according to claim 9, characterized by the fact that the | video is a pre-selection command to make a user confirm that! switches the video content that is played before the switching timing of the video content that is playing, a preload command to make the video content as a switching destination obtained before the switching timing of the video content is played , or a switch command to make the video content - play switched.
    [11]
    11. Content playback device according to claim 10, characterized by the fact that it additionally comprises a temporary storage section for temporarily storing the video contents broadcast over the broadcast network, in which the video switching command includes an element that indicates whether to perform an auto-return during the return to a continuous video stream before switching after switching the video content that is played.
    [12]
    12. Method of reproducing content from a content reproduction device to reproduce video content supplied from a content supply device, characterized by the fact that the content reproduction method comprises: | 5 by the content playback device, an obtaining step to obtain video content | broadcast via a broadcast network or video content | distributed via the Internet; | an analysis step to analyze a switching command | - video embedded in the video content obtained; and a control step to control a process related to the switching of video content that is played according to a | result of the video switch command analysis. |
    [13]
    13. Storage medium, characterized by the fact that | understand instructions that, when executed by a computer to | play video content supplied from a video device | supply of content, make it work as: a procurement section to obtain video content broadcast through a broadcast network or video content - distributed through the Internet; an analysis section to analyze a video switching command embedded in the obtained video content; and a control section to control a process related to the switching of video content that is played according to a - result of the analysis of the video switching command.
    [14]
    14. Content display system, characterized by the fact that it comprises a content supply device and a | content playback device, | where the content delivery device includes | a generation section to generate a video switching command to make the content playback device perform a process related to the switching of the video content that is being played, a broadcast section to broadcast the video content: S - embedded with the video switching command generated through a broadcast network, i a distribution section for distributing video content over the Internet, and the content playback device includes: a retrieval section for obtaining the video content broadcast by through the broadcast network or the video content distributed | through the Internet, | an analysis section to analyze the switching command | of video embedded in the obtained video contents, and a control section to control the process related to the switching of the video contents that are played according to a result of the analysis of the video switching command.
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    CN103119959A|2013-05-22|
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    法律状态:
    2020-10-20| B15K| Others concerning applications: alteration of classification|Free format text: A CLASSIFICACAO ANTERIOR ERA: H04N 7/173 Ipc: H04N 21/6332 (2011.01), H04N 21/654 (2011.01), H04 |
    2020-10-20| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-02-02| B11B| Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements|
    2021-11-23| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
    申请号 | 申请日 | 专利标题
    US38899910P| true| 2010-10-01|2010-10-01|
    US61/388999|2010-10-01|
    US201161504593P| true| 2011-07-05|2011-07-05|
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    PCT/JP2011/071571|WO2012043358A1|2010-10-01|2011-09-22|Content supplying device, content supplying method, content reproduction device, content reproduction method, program, and content viewing system|
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