JP6504695B2 - Video distribution system - Google Patents

Description

The present invention relates to a video distribution system used on the Internet, and more particularly, to a system capable of efficiently distributing video content matching various user attributes and preferences from various video sources.

Today, video distribution services on the Internet are becoming popular. In particular, not only home personal computers but also smartphones and tablet devices are used to watch videos while going out, and the style is also widespread, and is expected to be more and more in the future.

Targets for viewing such as video posting sites such as YouTube (registered trademark), official video distribution sites and IPTV provided by various content providers, TV broadcast programs, TV broadcast programs recorded by users, and video works created by users themselves The video content that As a result, it is difficult for the viewer to search for content that matches his or her preference. There is an increasing need for a personalization feature that can be recommended by the information system to be the most appealing video content for the viewer based on the viewer's attributes, preferences, circumstances (whether moving or at home etc.).

Here, in general, in the video distribution service business, it is necessary to consider compliance with the copyright law. According to Japanese precedents, a service that allows users to place recorded content for private use on a shared server and view it via a network (for example, Patent Document 1) is a string between personal and video content Even if attachment is strictly carried out, it is interpreted as public transmission and there is a high possibility that permission from the right holder will be required.

In order to solve this copyright law problem, there is known a technique for making it possible to access a recording device provided at the user's home from outside via a network and exchanging only program identifiers on the network (Patent Document 1 2).

In addition, there is also a movement that allows viewers to view broadcast program content recorded by themselves on the network via a network by the broadcaster explicitly granting the copyright and the copyright adjacency under certain conditions. (Non-Patent Document 1). This is preferable for the viewer to facilitate viewing (time shift, place shift) of the recorded television program while going out, but further increases the necessity of the above personalization in terms of variations of the moving image to be viewed. There is a problem.

As a result, although the importance of the task of personalizing across a wide variety of moving image sources is extremely important, the conventional personalization function is closed within each moving image source, and a technology that appropriately addresses this problem Did not exist.

In addition, if the style of watching television programs recorded by home devices while going out via the network is further spread in the future, the burden on the network band due to the style is likely to become a problem. In general, there is known a technique called CDN (Content Delivery Network) in which moving image content is copied in advance on a cache server in order to increase the efficiency of moving image distribution via a network (Non-Patent Document 2) .

However, in the scenario of watching home recording equipment, the efficiency of the conventional CDN is not high. This is because the number of times that the same user views the same video content is limited. In addition, the bandwidth of the network connected to the home device (in particular, the upward link from the home to the outside) is often limited, which is likely to be a bottleneck. There is a need for a solution that is easy to clear copyright issues while solving this problem.

US Patent Publication No. US 2005/0183120 Patent Publication 2012-039417

"The standard of" remote viewing "of digital broadcasting is decided. NexTV-F (http://av.watch.impress.co.jp/docs/news/20140214_635336.html) CDN [Contents Delivery Network] Content Delivery Network (http://e-words.jp/w/CDN.html)

Provided is a server, computer program and method for selecting contents matching various user's preferences from various moving picture contents sources and efficiently distributing them to user terminals.

The present invention is a program scheduling server connected to a network in which a plurality of moving image providing sites and a viewing terminal are connected, wherein the program scheduling server includes moving image attribute storage means for moving images provided by the moving image providing site The program scheduling server is provided with user attribute storage means of the user who uses the viewing terminal, and the programming server is configured to store each moving image based on the plurality of moving image attribute data in the moving image attribute storage means and user attribute data of the user attribute storage means name. The above problem is solved by providing a programming server that calculates a recommendation value for the user, associates an identifier of each moving image with the recommendation value, and transmits the association to the viewing terminal.

Further, in the present invention, at least one of the plurality of moving image providing sites is an in-home recording device, and the in-home recording device performs the recording of the broadcast program in accordance with an instruction of the programming server. The above problem is solved by providing.

Furthermore, the present invention solves the above-mentioned problem by providing the program scheduling server according to any one of paragraphs 0013 or 0014 in which at least one of the plurality of moving image providing sites is a broadcasting station.

In the present invention, a plurality of moving image providing sites, a program scheduling server including moving image attribute storing means of moving images provided by the moving image providing site, and user attribute storing means of a user who uses the viewing terminal are connected. It is a viewing terminal connected to a network, wherein the viewing terminal is connected to the program scheduling server based on a plurality of moving image attribute data in the moving image attribute storage unit and user attribute data of the user attribute storage unit name. The above problem is solved by providing a video viewing terminal that causes the recommendation value for the user of the above to be calculated, and the identifier of each moving image is associated with the recommendation value and transmitted to the viewing terminal.

Furthermore, the present invention is the moving image viewing terminal according to paragraph 0016, wherein at least one of the plurality of moving image providing sites is a home recording device, and the home recording device records a broadcast program in accordance with an instruction of the programming server. The above problem is solved by providing.

Furthermore, the present invention solves the above-mentioned problem by providing a moving image viewing terminal according to any one of paragraphs 0016 or 0017 in which at least one of the plurality of moving image providing sites is a broadcasting station.

In the information system according to the present invention, a plurality of moving image providing sites, a programming server, and an information system in which a viewing terminal is connected via a network, a procedure for acquiring moving image attribute information from each of the moving image providing sites A procedure for storing attribute information in the movie attribute storage means; a procedure for calculating a recommended value of the movie from the attribute information of the movie in the movie attribute storage means and a user attribute in the user attribute storage means; The above problem is solved by providing a moving image distribution method including a procedure of associating an identifier and the recommended value and transmitting the same to the viewing terminal.

Furthermore, the present invention is the moving image distribution method according to paragraph 0019, wherein at least one of the plurality of moving image providing sites is a home recording device, and the home recording device records a broadcast program according to an instruction of the programming server. The above problem is solved by providing.

Furthermore, the present invention solves the above-mentioned problem by providing the moving image distribution method according to paragraph 0019 or paragraph 0020, wherein at least one of the plurality of moving image providing sites is a broadcasting station.

Furthermore, the present invention solves the above-mentioned problems by providing a computer program that causes a computer to function as the programming server described in any of paragraphs 0013, 0014, or 0015.

Further, the present invention solves the above-mentioned problems by providing a computer program that causes a computer to function as a moving image viewing terminal according to any of paragraphs 0016, 0017, or 0018.

In the present invention, in an information system in which a home recording device, a viewing terminal, and a broadcast program recording storage means are connected by a network, the viewing terminal transmits attribute information of a broadcast program desired to be viewed to the home recording device. Procedure for transmitting the attribute information to the broadcast program recording storage means, and the broadcast program recording storage means selects a corresponding set of recorded broadcast programs based on the attribute information The above problem is solved by providing a moving image distribution method including the steps of transmitting to the viewing terminal.

In the present invention, in an information system in which a home recording device, a viewing terminal, and a broadcast program recording storage means are connected by a network, the viewing terminal transmits attribute information of a broadcast program desired to be viewed to the home recording device. Step of transmitting the attribute information to the broadcast program recording storage means, and the broadcast program recording storage means selecting a corresponding set from recorded broadcast programs based on the attribute information. The above problem is solved by providing a moving image distribution program that causes a computer to execute the steps of transmitting to the viewing terminal.

According to the present invention, there is provided a server, computer program and method for selecting content matching various user's preferences from various moving image content sources and efficiently distributing it to user terminals.

1 is an entire configuration of an example of a video distribution system according to the present invention. 1 is an example of a functional configuration of a programming server according to the present invention. It is an example of the data item in the user attribute database which concerns on this invention, and a program attribute database. It is an example of the structure of the personalized program guide which concerns on this invention. It is an example of a functional configuration of a viewing terminal according to the present invention. It is an example of the screen of the viewing-and-listening terminal concerning the present invention. It is an example of the processing flow of personalized program guide transmission which concerns on this invention. It is an example of the processing flow regarding moving image addition and deletion to the personalized program guide which concerns on this invention. It is an example of a processing flow of acquisition (crowling) of animation attribute information from an animation site concerning the present invention. It is an example of a processing flow of updating of a personalized program guide in the switching application according to the present invention. It is an example of the processing flow at the time of video viewing and listening of the switch application concerning the present invention. 5 is an example of a method for efficiently viewing a moving image recorded on a home recording device according to the present invention.

(overall structure)
FIG. 1 shows an entire configuration of an example of a moving image distribution system according to the present invention. A program scheduling server (101), a viewing terminal (102), a plurality of moving image distribution servers (103), a broadcast program recording storage server (104), a home recording device (105), and a home recording device (center control type) (106) ) Are connected via a network (107).

The program scheduling server (101) is a means for executing a function of creating a program guide (personalized program guide) matching the preference of each viewer based on the contents of a database described later, and is typically Computer device and program are realized.

The viewing terminal (102) is a means by which the viewer mainly views the moving image content while going out, and is typically a tablet terminal or a smartphone, but is not limited to this, a personal computer, a smart television device, It may be an in-vehicle device, a wearable terminal or the like. In addition, it may be used at home as well as when going out.

The video distribution service (103) is an automatic public transmission service for video that is popular on the Internet today, available for free to anyone such as YouTube (registered trademark), or a content provider such as a television station itself. It includes official video sites to be developed and Internet and television services that provide services only to subscribers such as Hulu (registered trademark).

The broadcast program recording storage server (104) is a means for storing a broadcast program recorded for private use, and is typically a device realized by a general computer device and program.

According to the current interpretation of Japanese copyright law, delivering a work for private use to a shared server may be interpreted as public transmission, and the permission of the copyright holder and the copyright adjunct may be required. However, there is a possibility that the license may be obtained as a business arrangement with the copyright holder, that there may be a revision (or a change of interpretation) of Japanese copyright law in the future, and the use abroad As it is possible, inclusion of the broadcast program recording storage server (104) in the configuration does not impair the technical significance of the present invention.

The in-home recording device (105) is a program recording device such as a television broadcast or a priority broadcast installed in each private space such as a home by each viewer. A hard disk recorder provided by a consumer electronics maker, a personal computer equipped with a broadcast tuner function, a file server for storing recorded programs, and the like are examples of such an apparatus. The user can view a program stored in the home recording device (105) from the viewing terminal (102) via the network. Since this type of viewing method is not public transmission, it is interpreted that copyright law does not require permission from the owner.

The in-home recording device (center control type) (106) is a program recording device such as a television broadcast or a priority broadcast installed in a private space such as a home by each viewer similar to the in-home recording device (105). It communicates with the programming server (101) via a network, and is different in that it is under control. Typically, the home recording device (center control type) (106) is provided by a provider who provides the programming server (101). From the program operating on the program scheduling server (101), it is possible to inquire the recording content of the home recording device (center control type) (106) or to specify a program to be recorded next.

The network (107) is typically the Internet.

The broadcast station (108) is an entity that provides programs by terrestrial waves, satellite waves, cable television, IPTV, etc. (In the description of this specification, "broadcasting" is defined under copyright law ( In addition to broadcasting (by airwaves), wired broadcasting and simultaneous multi-stream streaming on the Internet shall be included). The viewing terminal (102) has a function of viewing a broadcast program provided by the broadcast station (108) in real time (one that receives television broadcast waves is generally called one seg or full seg), and recording and later It may have a function of time shift viewing. In addition, the broadcast program recording storage server (104), the home recording device (105), and the home recording device (center control type) (106) have a function of recording a broadcast program provided by the broadcasting station (108). There is. The broadcast program recording and storing server (104) may constantly and comprehensively record receivable programs. The home recording device (105) may also always record a plurality of programs. It is desirable that the home recording device (center control type) (106) has a function of recording a program in accordance with an instruction from the program scheduling server (101) in addition to recording the program according to the instruction from the user. .

(Functional configuration of programming server)
FIG. 2 shows an example of a functional configuration of the programming server (101). The program scheduling server (101) is provided with a personal preference database (1014) for storing at least attributes of registered users and preference information, and a moving image attribute database (1015) for storing attributes of moving image content to be distributed, 1011) performs matching processing of both data to create a personalized program guide for each user and transmits it to the viewing terminal (102). The personalized program guide is a table listing moving image content to be viewed by individual users as a predetermined number of personalized channels (hereinafter, "personalized channel" may be abbreviated as "channel", It is a concept different from the broadcast program channel). Here, the source of the moving picture content included in the personalized program guide is the moving picture distribution server (103), the broadcast program recording storage server (104), the home recording device (105), the home recording device (106), the broadcasting station (108). It is desirable that there are various kinds, such as real-time broadcasts) and moving image contents stored in the viewing terminal (102). Specific processing logic of creating a personalized program guide by the video site personalization processing program (1011) will be described later.

The crawling processing program (1012) is attribute information (meta) of moving picture content from a moving picture site on the Internet, SNS (social networking service), program information provided by a broadcasting station, and program information provided by a program information provider, etc. Data) is collected and stored in a moving image attribute database (1015).

The in-home recording device control program (1013) communicates with the in-home recording device (center control type) (106) installed in the home by the user via the network (107), transmits a recording command, or transmits a recording program Is a program that queries the contents of

An example of the content of the personal preference database (1014) is shown in FIG. A unique identifier (personal ID) is assigned to each user (viewer) of the moving image distribution system according to the present invention (the assignment method is a design matter and can be determined freely). The user is associated with a tag (for example, "love", "economy", etc.) indicating the preference. It is desirable to express the degree of association (preference strength) as a numerical value of the association degree. Also, tags may be assigned to each type of association (for example, "language", "genre", etc.). The personal preference database (1014) may be created based on the viewer's own input, may be created based on the viewer's moving image viewing history, or may be created by a combination of both.

FIG. 3-b) shows an example of the contents of the moving picture attribute database (1015). A unique identifier (moving image ID) is assigned to the movie (the assignment method is a design matter and can be determined freely). The moving image is associated with tags (for example, "bank", "love", "mature", etc.) representing its contents and characteristics. It is desirable to express the degree of association as a numerical value of the degree of association. Also, a tag may be assigned to each relevant type (for example, "genre", "starring", etc.). The relevance between tags may be expressed as relevance (for example, “finance” and “bank” are highly relevant). The contents of the movie attribute database (1015) may be manually input by a service provider or a specialist vendor, and metadata of the movie (for example, a genre or description in a movie site, a broadcasting station in digital broadcasting, etc. It may be automatically extracted from attribute data).

(Structure of personalized program guide)
FIG. 4 shows an example of the configuration of a personalized program guide. The personalized program guide is a table consisting of a predetermined number (9 in this example) of channels (personalized channels). The number of channels may be fixed or variable. Each channel is associated with a moving image ID (identifier) of a moving image displayed on the channel. The moving picture ID of the moving picture to be displayed next may be stored in advance in order to speed up the switching after the end of the moving picture viewing. The title and type (moving image source) corresponding to the moving image ID may be read out from the moving image attribute database (1015) and stored in the personalized program guide for quick display. In the case of a moving image source that can be played back only from a specific time, such as a live broadcast program on television, it is desirable to save the start time as well.

(Functional configuration of viewing terminal)
An example of a function structure of a viewing-and-listening terminal (102) is shown in FIG. The personalized program guide file (1022) is a file or database for temporarily storing the personalized program guide (see FIG. 4) created and transmitted by the programming server (101). The switching application (1021) reproduces contents provided by a moving image source such as a moving image distribution service (103), a moving image recording service (104), a home recording device (105), and a home recording device (center control type) (106) While playing back the moving image on the screen of the viewing terminal (102) based on the contents of the personalized program guide file (1022), a channel switching button through which the user can switch the moving image content is displayed. The specific logic of this switching application (1021) process will be described later. The viewing terminal (102) comprises a broadcast program receiving means (1023) capable of receiving a broadcast program by means of terrestrial waves, satellite waves, IPTV etc., and a means (file etc.) (1024) for storing the recording of the broadcast program. Good. The viewing terminal (102) is also provided with connection means to the Internet, display means, and user input means, which are not shown because they are known techniques.

FIG. 6 shows an example of the screen of the switching application (1021). In this example, a moving image being viewed by the user is displayed on the left side of the screen, and a personalized channel (in this example, a PC in LAN, Hulu (registered trademark), live TV broadcast, TV recording, and Youtube). And a button (which may be a thumbnail of a moving image) for switching. Cross moving image content sourced from multiple video distribution services (103), multiple broadcast program recording and storage servers (104), home recording devices (105), home recording devices (center control type) (106), etc. It is desirable to be able to display video content that matches the user's preferences. Also, among the television programs currently being broadcasted, if there is something that matches the user's preferences (for example, live sports on sports, temporary news, etc.), it will be displayed as one of the channels, or the user will It is desirable to encourage people to A moving image type that has a high degree of matching with the user's preference may be placed at an easy-to-operate position (typically, the center of the screen). Also, the shape and color of the recommended moving image switching button may be changed according to the degree of matching. In addition, it is desirable to display the reason why the program was recommended for each recommended animation. It is desirable that the moving image switching button can be switched between display and non-display by key input or a gesture on the screen, and becomes non-display when there is no operation for a predetermined time. In addition, it is desirable to be able to display channels not displayed on one screen by a scroll operation. The processing logic of program switching of the switching application (1022) will be described later.

In addition, arrangement | positioning to each physical apparatus of said function is an example, and each function may operate on arbitrary apparatuses connected by the network. For example, the personal preference database (1014) or the moving image attribute database (1015) may be operated on a server physically different from the server on which the personalization processing program (1011) operates. Similarly, for example, a function equivalent to the switching application (1021) is operated on a server providing virtual desktop service, and from there, the screen image and the user input are exchanged with the viewing terminal (102). It may be done.

(Personalized program guide delivery logic)
FIG. 7 shows processing logic of creating a personalized program guide by the personalization processing program (1011). In response to a request for creating a personalized program guide (hereinafter referred to as "program guide") transmitted from the switching application (1021), the personalization processing program (1011) accesses the current program guide from the switching application (1021) Possible moving image types (for example, there may be a case where the home recording device (105) on the LAN can be accessed when the user is at home but not when going out), the viewing / operation history and the like are received. Then, the freshness information in the personal preference database (1014) is updated (the freshness is a numerical value representing the recommended degree according to the time of the moving image content, for example, if it is a recording of a news program, the freshness is high immediately after the broadcast; Its freshness is calculated to decrease with the passage of Next, the program to be deleted from the program guide is determined (the deletion logic will be described later). Next, the moving picture attribute information is read from the moving picture attribute database (1015), the personal preference information of the user is read from the personal preference database (1012), the recommended value for each moving picture is calculated, and the recommended value is a predetermined threshold. Add videos to the personalized program guide, create a new personalized program guide, and send it to the switching application (1021).

  FIG. 8-a) shows the determination flow of the deleted moving image from the current program guide. First, the number of positive operations performed by the user on the moving image (for example, operations to repeatedly watch the moving image until the end, etc.) and negative operations (for example, the reproduction of the moving image is stopped halfway, Reflects the recommended value for the user of the movie, taking into account the number of times of switching operations etc.). Also, adjust the recommended value taking into consideration the time since adding the video to the program guide. It is desirable to apply an operation that lowers the recommended value for videos that are long after being added to the program guide. Next, update the animation freshness information and user tag freshness information. Repeat this process for all videos and calculate recommendations for each user for each video. A moving image whose recommended value is less than or equal to a predetermined threshold or a moving image whose recommended value does not fall within a predetermined order (for example, to the top five) is targeted for deletion from the personalized program guide.

FIG. 7-b) shows the determination flow of the additional moving image to the current program guide. First, set the freshness of the emergency broadcast. The emergency broadcast corresponds to, for example, temporary news such as disaster information. Next, the freshness of the live broadcast / live program (content supplied in real time by airwaves) is calculated. The content contents of the broadcast program may be manually input by the administrator or may be obtained from a broadcast program information provider. Next, the tag relevance degree of the user and the relevance degree of the tag are multiplied by the relevance degree of the tag and the video, and correction is made according to the current time and day of the week (for example It is desirable to make corrections). Repeat this process for all videos and calculate recommendations for each user for each video. An animation whose recommendation value is equal to or higher than a predetermined threshold or an animation whose recommendation value falls within a predetermined order (for example, to the top five places) is added to the program guide. Here, 1) If there is an emergency live broadcast (large earthquake information, large incident information, etc.) (such a broadcast can be determined from EPG information or information on social media), the program guide is unconditionally 2) Add the latest viewing interruption video to the program guide as long as the video freshness information does not fall below the threshold when there is the latest viewing interruption video, 3) There is the latest viewing completion video, and the order relation is strong If there is a video (for example, a sequel to a drama series), add it to the program schedule as long as the video freshness information does not fall below the threshold, 4) videos with strong regularity (daily, weekly, monthly) for viewing In some cases, as long as the video freshness information does not fall below the threshold, it is added to the program guide, 5) the viewing rating viewed within a certain period is high, and the related animation is added to the program guide, etc. May use the logic of

(Video crawling process)
FIG. 9 shows a flow of processing (crawling processing) in which the crawling processing program (1012) patrols a plurality of moving image distribution servers (103) and the like and collects attribute information of moving images to be distributed. In crawling processing, broadcast wave metadata and broadcast wave subtitle data included in digital broadcast, data of site provided by rights holder of video, data of blog reviewing video, data of video review site, video related comment of SNS It is desirable to acquire data etc. In addition, it is desirable that the program relating to the acquisition function be implemented as an adapter to facilitate addition of functions so that as many data as to attributes and evaluations of moving pictures can be acquired.

(Processing of home recording device (center control type))
As described above, the in-home recording device control program (1013) of the program scheduling server (101) controls the in-home recording device (center control type) (106) via the network (107). It is good to adopt good logic. 1) The home recording device (center control type) (106) notifies the home recording device control program (1013) of the tuner type (terrestrial digital, satellite, area) as soon as the recordable tuner is available. 2) The home recording device (Center control type) (106) is a home-made channel determined by the personalization processing program (1011) from the personal preference database (1014) and the moving image attribute database (1015), a start time, an end time, and a selection reason Acquire from the recording device control program (1013). If the storage does not have the free space required for recording, the personalization processing program (1011) deletes the low-priority program determined from the personal preference database (1014) and the moving image attribute database (1015) to obtain free space. You may secure it. Here, the viewing completion moving image content or the moving image content with the oldest recording time may be deleted from the storage of the home recording device (center control type) (106) of the automatic recorder after being stored in another cloud server. . 3) Wait until the home recording device (center control type) (106) start time. 4) Automatic recording is started at the home recording device (center control type) (106) start time. 5) The home recording device (center control type) (106) notifies the recording device control program (1013) of the start of recording.

A home recording device (center control type) (106) has a function of streaming live broadcasting while performing real-time transcoding according to a request from a switching application (1021), and streaming a recorded broadcast according to a request from a switching application (1021) It is desirable to have a function to perform, and a function to perform time shift streaming of a broadcast being recorded according to a request from the switching application (1021).

(Processing logic of switching application)
FIG. 10 shows a processing flow of personalized program guide updating by the switching application (1021). It is desirable that the personalized program guide be updated by the switching application (1021) periodically transmitting an update request to the personalization processing program (1011). It is desirable that the transmission interval be configurable. Also, the user may be able to request creation at any time.

FIG. 11 shows a processing flow corresponding to a user operation at the time of program viewing by the switching application (1021). The switching application (1021) first acquires a personalized program guide. Thereafter, the selected channel moving image content is reproduced. It is desirable to automatically and continuously reproduce moving image content corresponding to each channel of the program guide when there is no explicit operation by the user. When the user's operation is channel switching, switching is made to the moving image of the designated channel and the reproduction is continued. Here, in the moving image, a real-time broadcast program provided by a broadcast station by a broadcast radio wave (108) or the like and a content stored in the home recording device (105) and the home recording device (center control type) (106) May be included. In the case of a program skip operation, it is desirable to select and play moving image content corresponding to the next item of the same moving image type. If the user has not performed a special operation and a certain period of time has elapsed since the previous creation of the program guide, it is desirable to request the personalization processing program (1011) to update the personalized program guide.

(Virtual cache of broadcast program)
Moving picture distribution from a moving picture source such as moving picture distribution service (103), broadcast program recording and storage service (104), home recording equipment (105), and home recording equipment (center control type) (106) to viewing terminal (102) When doing this, in order to minimize the load on the network bandwidth, the moving image content is copied to the cache server, and if the request from the viewing terminal (102) can be handled by the cache server, It is desirable to be able to view cache server-side video content rather than the original video source.

Here, when viewing a broadcast program recorded on the home recording device (center control type) (106), the moving image data of the same program recorded on the broadcast program recording and storage service (104) is used. May be If all broadcast programs are recorded by the broadcast program recording and storing service (104), the program recording data required by the user is present there. By doing this, it is possible to reduce the load on the network due to replication to the cache server. If viewing of program recording in home recording equipment through the network becomes widespread in the future, there is a risk that the Internet will be congested due to the amount of data for distribution or the amount of data to be copied to a cache server. This risk can be mitigated by adopting a virtual duplication method that does not duplicate in practice.

In this case, the broadcast program recording and storage service (104) includes attribute information (program name, recording start time / end time, encoding method) of program recording data stored in the home recording device (center control type) (106). Acquired by exchanging with the in-home recording device (center control type) (106), and the restriction of distributing only the recording data existing on the in-home recording device (center control type) (106) as a cache It is desirable to do it. Even with such a delivery method, the interpretation of the copyright law may require permission from the owner, but the contents of the moving picture data sent to the user viewing terminal are substantially the same as the user's home recording device (center control type Because the program data recorded in (106) and the digital data are exactly the same, and there is no mechanism to distribute even programs that the user did not record without restriction, there is the benefit that the licensee of the right holder can be easily obtained , Has technical significance.

FIG. 12 shows the process flow of the above cache delivery system. ( S1201 ) The switching application (1021) on the viewing terminal (102) requests the moving image content on the home recording device (center control type) (106). ( S1202 ) After the home recording device (105) confirms that the requested moving image content is stored, moving image content related information (program identification information such as a program name, start recording) in the broadcast program recording storage server (104) Send time, end time of recording, encoding method, etc.). As an alternative procedure, the switching application (1021) first inquires to the broadcast program recording storage server (104), and the broadcast program recording storage server (104) transmits the home recording device (center control type) (106) of the terminal user. An inquiry may be made. ( S1203 ) The broadcast program recording storage server (104) can provide the moving image content (in fact, it can be provided as it is always recorded on all the broadcast channels), The moving picture content is distributed by streaming to the switching application (1021). The video content data is exactly equivalent to the data delivered when the switching application (1021) directly requests the home recording device (center control type) (106) (same original digital data is the same) Encoding is secured by the encoding method to ensure identity. Although the network connected to the home recording device (105) is for home use and often limited in bandwidth, the broadcast program recording storage server (104) can use more abundant bandwidth, so the user's viewing experience It is also comfortable and the burden on the network is small.

(Technically significant effects of the present invention)
In the following, technically significant advantages compared to the prior art according to the present invention are summarized. First, multiple sources from various sources of video such as various video sites, broadcast programs stored on the cloud, videos stored on recording devices in the user's home, and real-time broadcast programs. Cross-cutting analysis can provide the user with the best programming. Although there has been a recommendation function within a single video site in the past, there is technical significance in that recommendations can be made across multiple video sites. In addition, not only recorded programs but also real-time broadcast programs can be included in the selection, which is highly valuable for the user. Second, even if the user does not perform any special operation, the recommended program can be continuously played back, while the user can switch the channel by his own intention, as if it were a conventional television. You can enjoy the above video content. Thirdly, it is possible to view from a home recording device to an individual via a network in a form of less resistance for the copyright holder / advertising owner of moving pictures (especially television broadcast programs).

Claims (13)

A programming server connected to a network in which a plurality of video providing sites and a viewing terminal are connected,
The moving picture attribute storing means of the moving picture provided by the moving picture providing site, and the user attribute storing means of the user who uses the viewing terminal,
Calculating a recommended value for the user of each moving image based on the plurality of moving image attribute data in the moving image attribute storage unit and the user attribute data in the user attribute storage unit;
The program guide data configured as a plurality of channels are transmitted to the viewing terminal by associating the identifier of each moving image with the recommended value.
The program scheduling server, wherein the user can select whether to view a moving image in the same channel in the program guide data sequentially or to switch to another channel for viewing. At least one of the plurality of moving image attribute data is freshness information,
In the calculation of the recommended value, the freshness information has the effect of reducing the recommended value calculated with the passage of time,
The programming server according to claim 1. The moving image attribute storage unit also stores the attribute of the moving image in the viewing terminal,
The programming server according to any one of claims 1 or 2. A viewing terminal connected to a network connected to a plurality of moving image providing sites, and a programming server provided with moving image attribute storing means for moving images provided by the moving image providing site and user attribute storing means for a user using a viewing terminal And
The program scheduling server is made to calculate a recommended value for the user of each moving image based on the plurality of moving image attribute data in the moving image attribute storage unit and the user attribute data in the user attribute storage unit.
Causing the program guide data configured as a plurality of channels to be transmitted by associating the identifier of each moving image with the recommended value;
The video viewing terminal, wherein the user is configured to be able to select to sequentially watch the moving image in the same channel in the program guide data and to switch to another channel for viewing. At least one of the plurality of moving image attribute data includes freshness information,
In the calculation of the recommended value, the freshness information has an effect of reducing the recommended value calculated with the passage of time.
The video viewing terminal according to claim 4. The moving image attribute storage unit also stores the attribute of the moving image stored in the viewing terminal.
The moving image viewing terminal according to any one of claims 4 or 5. In an information system in which a plurality of moving image providing sites, a programming server, and a viewing terminal are connected by a network,
A procedure for acquiring video attribute information from each of the video providing sites;
Storing the attribute information of the moving image in the moving image attribute storage unit;
Calculating the recommended value of the moving image from the attribute information of the moving image in the moving image attribute storing unit and the user attribute in the user attribute storing unit;
A procedure for transmitting program guide data configured as a plurality of channels by associating the identifier of the moving image and the recommended value to the viewing terminal;
A step of causing the viewing terminal to select the sequential viewing within the same channel of the moving image in the program guide data and the viewing by the user switching operation to another channel ;
A video delivery method implemented from a computer. At least one of the attribute information of the moving image is freshness information,
In the procedure of calculating the recommended value of the moving image, the freshness information has an effect of reducing the recommended value calculated with the passage of time.
The video delivery method according to claim 7. The moving image attribute storage unit also stores the attribute of the moving image stored in the viewing terminal.
A moving image distribution method according to any one of claims 7 or 8. A computer program that causes a computer to function as the programming server according to any one of claims 1, 2 or 3. A computer program that causes a computer to function as the moving image viewing terminal according to any one of claims 4, 5 or 6. The information system further includes a broadcast program recording storage means and a home recording device,
A procedure in which the viewing terminal transmits attribute information of a broadcast program that the user desires to view to the in-home recording device;
A procedure for the home recording device to transmit the attribute information to the broadcast program recording storage means;
The broadcast program recording and storage unit selects a corresponding program from a recorded broadcast program based on the attribute information, and transmits the selected program to the viewing terminal.
The moving image delivery method according to claim 7, claim 8, or claim 9 . The network further includes a broadcast program recording storage means and a home recording device.
The viewing terminal transmitting attribute information of a broadcast program desired to be viewed on the home recording device;
The home recording device transmitting the attribute information to the broadcast program recording storage means;
The computer program according to claim 11, causing the computer to execute the steps of: the broadcast program recording and storage means selecting a corresponding program from a recorded broadcast program based on the attribute information and transmitting the selected program to the viewing terminal.

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