JP2012227759A - Video recorder, reproducer and server device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform chapter division efficiently.SOLUTION: The video recorder comprises: a video recording unit 21 which receives a television broadcast and records the content (video and audio) of a program extracted from the television broadcast on a recording medium; a communication unit 22 which acquires a contribution and the contribution time by performing communication with a contribution site associated with a program being received by the video recording unit and recorded on the recording medium; and a chapter generation unit 23 which sets a chapter in a content to be recorded in the video recording unit 21 based on the time variation of the number of contributions acquired via the communication unit 22, and making the expression of feeling included in a contribution in a time band corresponding to the chapter correspond to the chapter.

Description

  The present invention relates to a recording device, a playback device, and a server device, and more particularly, to a recording device that records a moving image on a recording medium, a playback device that plays back the moving image, and a server device that distributes the recorded moving image.

  With the increase in capacity of recording media, many users are recording long-time videos or watching long-time videos. In addition, with the improvement of recording technology and communication technology, many users have recorded a plurality of videos and selected from the plurality of videos to view the videos. That is, when viewing a video, the user must search for a desired location from a long video, search for a video including a desired location from a number of videos, and search for a desired location from the searched video. Information used at the time of such search includes chapter information.

Chapter division methods include automatic division and manual division.
In the automatic division, the degree of coincidence between the periodically extracted videos and the preceding and following videos is determined. When the degree of coincidence is low (close to mismatch), it is determined that the scene is switched and chapter assignment is performed. However, the basis for selecting each chapter when performing automatic division is only the elapsed time of the program and the thumbnail of the extracted image, and appropriate chapter division is not always possible.
On the other hand, in the case of manual division, appropriate chapter division can be performed, but the user has to specify the position at which the chapter division is performed. That is, in order to specify the division position, the user must search the program at least once and search for a desired division position.

Patent Documents 1, 2, 6, and 7 are disclosed as techniques for searching for a desired scene from a video.
According to the technique according to Patent Document 1, by holding metadata in which a plurality of pieces of information are associated with a video frame number, a thumbnail related to a related scene is dynamically generated according to a user search, and the thumbnail is A scene can be selected while referring to it.
According to the technique according to Patent Document 2, a mechanism for sharing a scene of a program introduced on a bulletin board or the like between an introducer and a viewer is provided.
According to the techniques according to Patent Documents 6 and 7, feature parameters indicating the characteristics of video data or audio data, and accompanying parameters linked to video data or audio data are acquired together with the video data, and the feature parameters and accompanying parameters are used as axes. A display space is generated, and each video data is displayed at the position of each video data on the display space.

In addition, Patent Documents 3 to 5 are disclosed as techniques for improving the viewing environment in cooperation with the remarkable Internet.
According to the technique according to Patent Document 3, flexible expression and interactivity are realized by dynamically accessing a service on a network when viewing a unique service such as a broadcast wave or a DVD.
According to the technique according to Patent Document 4, the number of written messages in a bulletin board server device corresponding to a broadcasting station or a broadcast program is monitored, and the number of written messages currently broadcasted is determined based on the number of written messages per unit time. A three-party rating can be provided to the viewer.
According to the technique according to Patent Document 5, by forming a personal space with a lock for each individual user in a server connected via the Internet, and instructing from a mobile terminal to a TV tuner connected to the server, TV programs can be recorded in a locked personal space using compression technology.

JP 2009-081575 A JP 2008-263502 A JP 2008-182675 A JP 2007-060305 A JP 2002-245259 A WO2007 / 126097 WO2007 / 126096

  As described above, at present, the environment related to chapter division of recorded video is not sufficient for end users, and there has been a long-awaited appearance of a technology capable of efficient chapter division.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a recording device, a playback device, and a server device that can efficiently perform chapter division.

  One aspect of the present invention is a recording apparatus including a recording unit that records a content extracted from a television broadcast on a recording medium, and communicates with a posting site associated with the content to acquire a posting and a posting time. A post acquisition unit, a classification unit that classifies posts based on emotional expressions included in the post, and a chapter on the content recorded by the recording unit based on time variation of the number of posts during broadcasting of the content on the posting site A chapter setting unit that sets and sets the classification based on the posting in the time zone corresponding to the chapter to the chapter.

In the above configuration, the recording unit receives a television broadcast and records content included in the television broadcast on a recording medium. The posting acquisition unit acquires a posting posted on a predetermined posting site and a posting time of the posting when the content is broadcast on the television broadcast. Here, the predetermined posting site is associated with the content, and postings related to the content such as impressions about the content, details of the content, and the like are performed. Using this relationship, the chapter setting unit sets the chapter of the content. That is, the number of posts on the posting site is totaled to statistically analyze time fluctuations, set the chapters of content recorded by the recording unit based on the time fluctuations, and further analyze the postings in the time zone corresponding to the chapters To determine the chapter classification.
In this way, chapter setting is performed based on the viewer's realistic reaction by setting the chapter using the post made by the actual viewer, and further, classification is performed based on the impression of the actual viewer. Therefore, chapter setting and chapter classification from the viewer's side are performed, and chapter setting and chapter classification appropriate for the viewer can be automatically performed.

In one of the optional aspects of the present invention, the chapter setting unit is configured to set a classification based on the emotion expression extracted from the posting in the time zone corresponding to the chapter for the chapter.
Thus, since the classification based on the emotional expression of the viewer is made, the viewer can grasp the emotion related to the chapter by viewing the classification when viewing the content recorded by the recording unit. it can. Therefore, when the viewer reproduces the content, it is possible to provide an appropriate determination criterion for chapter selection.

In one of the selective aspects of the present invention, a word included in a post in a time zone corresponding to the chapter is provided with a storage unit that stores a correspondence relationship between a word, a numerical feature of the word, and a classification of the word. With regard to the numerical characteristics calculated from the above, the correspondence of each post is specified by referring to the correspondence relationship, and the classification that occupies the majority of posts in the time zone corresponding to the chapter is associated with the chapter.
Thus, in determining the chapter classification based on the correspondence between the word and the classification of the word, because the classification of each word is determined through the numerical features associated with the word, The search performed when identifying the classification of each word can be speeded up.

In one of the optional aspects of the present invention, the chapter setting unit is a timing that goes back a predetermined time from a timing at which a predetermined characteristic change indicating that the number of posts has increased in the time variation of the number of posts has occurred. Is the start time of the chapter.
Although various things can be considered as the predetermined characteristic variation indicating that the number of postings has increased, in any case, the increase in the number of postings is a characteristic indicating the excitement in the posting site, It is linked to the excitement of content. Specifically, for example, there are a feature indicating a peak position of an increase in the posting amount, a feature indicating a rising rise in the posting amount, a feature indicating a falling increase in the posting amount, and the like. However, such characteristic fluctuations occur with a delay from the timing at which a scene that causes excitement in the content is broadcast. In addition, although such characteristic fluctuations are related to scenes that cause excitement in content, from the viewpoint of chapter setting, chapters are not started from the moment of excitement, but include introductory scenes of excitement. It is desirable to set the chapter.
Therefore, by setting the timing of a predetermined time after the timing when a predetermined characteristic change has occurred as the start time of the chapter, the time difference between the excitement of the posting and the excitement in the content can be absorbed, or the chapter can be introduced up to the introduction of the excitement. The chapter start position can be set so as to be included in.

In one of the optional aspects of the present invention, the chapter setting unit occupies a large number of posts in a time zone in which a predetermined characteristic variation indicating that the number of posts has increased in the time variation of the number of posts has occurred. The classification is associated with the chapter.
In this way, by performing each chapter with a category that dominates the posting in the exciting time zone included in the chapter, the viewer sees the category when viewing the content recorded by the recording unit, You can see what excitement each chapter contains. Therefore, when the viewer reproduces the content, it is possible to provide an appropriate determination criterion for chapter selection.

The chapters relating to the content recorded by the recording apparatus described above are displayed appropriately at the time of reproduction, thereby improving the convenience for the user.
That is, in the screen displaying a list of a plurality of contents recorded in the recording device, each content classification is displayed corresponding to each content, or in the screen displaying the chapter of the content recorded in the recording device, The classification of the chapter is displayed corresponding to each chapter, or the playback screen of the content recorded on the recording device is displayed on the content display area and the classification display area in synchronization with the playback of the content. And a posting display area that displays the posting made to the posting site in synchronization with the content when the recording unit records the content, Improves.

  Further, the present invention can also be realized as a server device that distributes television broadcast content. That is, in a server device that distributes television broadcast content to a client device, communication is performed with a recording unit that records content extracted from the television broadcast on a recording medium, and a posting site associated with the content during the content broadcast. A post acquisition unit for acquiring a post and a post time, a classification unit for classifying a post based on an emotional expression included in the post, and the time variation of the number of posts during broadcasting of the content on the post site A chapter setting unit that sets a chapter for the content recorded by the recording unit and sets a classification based on the posting in the time zone corresponding to the chapter to the chapter, and the content in which the chapter is set in response to a request from the client device And a distribution unit that distributes the message to the client device Same effect as the above-described recording apparatus.

  Further, the present invention can also be realized as a server device that distributes chapter information relating to television broadcast content. That is, in the server device that distributes the chapter information related to the content of the television broadcast, the post acquisition unit that communicates with the posting site associated with the content during the content broadcasting and acquires the posting and the posting time; A classifying unit that classifies posts based on emotional expressions included in the content, and the chapter information of the content is created based on the time variation of the number of posts during broadcasting of the content on the posting site, and the time corresponding to the chapter information Realized as a server device comprising a chapter setting unit that sets the classification based on the posting of the band in the chapter information, and a distribution unit that distributes the chapter information to the client device in response to a request from the client device. When playing back the content, the server device By receiving the delivery of broadcast, it is possible to perform the appropriate chapter set in the content.

  Moreover, the recording apparatus mentioned above contains various aspects, such as being implemented in the state integrated in another apparatus, or being implemented with another method. The present invention also provides a recording system and a recording / reproducing system including the recording device, a recording method having a process corresponding to the configuration of the above-described device, a recording program for causing a computer to realize a function corresponding to the above-described device configuration, and the recording It can also be realized as a computer-readable recording medium on which a program is recorded.

As described above, according to the present invention, it is possible to provide a recording apparatus that efficiently performs chapter setting and chapter classification appropriate for the viewer.
According to the second aspect of the present invention, it is possible to provide an appropriate criterion for selecting a chapter when a viewer reproduces content.
According to the invention of claim 3, the search that occurs when the classification is specified can be efficiently performed.
According to the fourth aspect of the present invention, it is possible to absorb the time difference between the excitement of the posting and the excitement in the content, or to set the chapter start position so that the chapter is included up to the introduction part of the excitement.
According to the fifth aspect of the present invention, it is possible to provide an appropriate criterion for selecting a chapter when a viewer reproduces content.
According to the inventions according to claims 6 to 8, user convenience can be improved during reproduction.
According to the ninth and tenth aspects of the invention, it is possible to provide a server device that efficiently performs chapter setting and chapter classification appropriate for the viewer.

It is a block diagram which shows the structure of the video recording / reproducing system concerning 1st Embodiment. 2 is a block diagram showing a configuration of an STB 20. FIG. It is a flowchart which shows the flow of a chapter creation process. It is an example of a structure of an emotion expression classification database. It is a figure explaining how to obtain the sum of character values. It is another example of a structure of an emotion expression classification database. It is a figure which shows an example of a contribution data management database. It is a figure explaining an example of change amount detection of the number of contributions. It is a figure explaining other examples of change amount detection of the number of contributions. It is a figure which shows the 1st reference | standard of the correspondence of a climax timing and a chapter allocation location. It is a figure which shows the 2nd reference | standard of the correspondence of a climax timing and a chapter allocation location. The general flow of reproduction is shown. It is an example of a content selection screen. It is another example of a content selection screen. It is another example of a content selection screen. It is a figure which shows an example of a chapter selection screen. It is a figure which shows an example of a content reproduction screen. It is a figure explaining conversion of the time at the time of synchronizing a recording timing and the reproduction timing of a content. It is a block diagram which shows the structure of the video recording / reproducing system concerning 2nd Embodiment. It is a block diagram which shows the structure of STB concerning 2nd Embodiment. It is a flowchart which shows the whole flow of a weight preparation process. It is a flowchart which shows the detailed flow of a weighting process. It is a figure which shows an example of a user information database. It is a flowchart which shows the weight adjustment process for emotion expression classification. It is a flowchart which shows the weight adjustment process for a climax discrimination. The system concerning the video recording and reproduction concerning the modification 1 is shown.

Hereinafter, embodiments of the present invention will be described in the following order.
(1) Configuration of the first embodiment:
(2) Chapter creation process:
(3) Content playback:
(4) Configuration of the second embodiment:
(5) Various modifications:

(1) Configuration of the first embodiment:
FIG. 1 is a block diagram showing a configuration of a recording / playback system according to the first embodiment. The recording / playback system 100 shown in FIG. 1 includes a broadcasting station 10 for television broadcasting, a set top box (STB) 20, a digital television (DTV) 30, and a posting server 40. The STB 20 is connected to the DTV 30 and can output a television broadcast received from the broadcast station 10 or a program recorded in the STB 20 to the DTV 30. The DTV 30 can reproduce the program input from the STB 20, display the video on the screen, and output the sound from the speaker. The STB 20 is communicably connected to the posting server 40 via a network NT such as the Internet, and can access the posting server 40 and obtain a posting from a posting site provided by the posting server 40.

  FIG. 2 is a block diagram showing the configuration of the STB 20 constituting the recording device, the playback device, the recording / playback device, and the like in the present embodiment. The STB 20 shown in the figure receives a television broadcast and records a program content (moving image, audio, etc.) extracted from the television broadcast on a recording medium, and the recording unit receives and records on the recording medium. A communication unit 22 that communicates with a posting site associated with a program to acquire a posting and a posting time, and a chapter is set to the content recorded by the recording unit 21 based on the time variation of the number of posts acquired by the communication unit 22 And a chapter creating unit 23 for associating the emotional expression included in the posting in the time zone corresponding to the chapter with the chapter.

  The recording unit 21 includes a broadcast receiving unit 21a and a recording unit 21b. The broadcast receiving unit 21a controls, for example, a tuner, a video processing unit that performs processing for extracting content from a broadcast signal (for digital terrestrial broadcasting, demodulation, demultiplexing, MPEG decoding, and the like). It is configured by a control unit, etc., receives a television broadcast, and extracts the content of the broadcasting station corresponding to the channel number selected by a remote controller (not shown) from the television broadcast. The recording unit 21b includes, for example, a recording medium, a control unit that performs recording control of the recording medium, and the like, and records the broadcast signal extracted by the broadcast receiving unit 21a on a predetermined recording medium.

  The type and recording method of the recording medium are not particularly limited, and any type of recording medium developed in the future as well as a known recording medium can be adopted. Examples of known recording media include a hard disk using a magnetic disk, a solid state drive using a semiconductor memory, and a recordable CD or DVD (including a Blu-ray disc) using an optical disk. Further, the recording medium may be built in the STB 20, may be externally attached, or may be connected to the STB 20 via a wired / wireless network.

  In addition, the television broadcast received by the broadcast receiving unit 21a is not only broadcast on the broadcast radio wave, but also cable television broadcasting that transmits a broadcast signal via a dedicated communication cable, or via a general-purpose communication cable. The broadcast etc. which transmit a broadcast signal may be sufficient. Further, it may be a public broadcast that transmits a broadcast signal from a broadcast station by unidirectional communication, or an on-demand broadcast that transmits a broadcast signal by bidirectional communication in response to a user request. Specifically, terrestrial analog broadcasting, terrestrial digital broadcasting, cable television broadcasting, satellite broadcasting (BS broadcasting, CS broadcasting, etc.), and on-demand broadcasting are exemplified.

  Note that the control unit described as a component of each unit in the present embodiment may be realized in software by executing a predetermined control program in the CPU or RAM, or in hardware by an IC such as an ASIC. It may be realized. Further, the number of control entities that control each part of the STB 20 may be one, or may be configured to be communicable with each other by bus communication or the like. Further, the control body of each unit may be one, or a plurality of units may be provided so that they can communicate with each other by bus communication or the like. Of course, it may be configured integrally with other components or may be configured separately.

  The communication unit 22 includes, for example, an interface and a control unit, and connects to a predetermined network such as the Internet and performs communication according to the protocol of the network. The type of interface is not particularly limited, and various wired and wireless interfaces can be adopted as long as communication is possible by connecting to a network.

  The chapter creation unit 23 includes a control unit 23a and a recording medium 23b, and the control unit 23a performs predetermined control processing, whereby a post acquisition unit M1, an emotion expression extraction unit M2, a statistics unit M3, and a chapter setting unit M4. The function corresponding to is realized. The recording medium 23b is composed of, for example, a hard disk or a semiconductor memory, and an emotion expression classification database D4 is stored in advance. When the control unit 23a performs control processing, the posted data management database D1, the emotion expression statistical information D2, Post amount statistical information D3 is stored. The recording medium 23b constitutes a storage unit in the present embodiment. Each function realized by the chapter creation unit 23 will be described below with reference to FIG.

(2) Chapter creation process:
FIG. 3 is a flowchart illustrating the flow of the chapter creation process. The chapter creation process shown in the figure is for setting chapters during recording of a program being broadcast in real time, and is executed during recording by the recording unit 21, that is, in parallel with recording by the recording unit 21. The recording unit 21 responds to a recording instruction from a user, a recording instruction from the DTV 30 performed via a remote controller (not shown), a recording instruction from an external device connected via the network NT, a recording reservation, etc. Recording is started, and in parallel with this, the chapter creation unit 23 also starts chapter creation processing.

  In the figure, the determination as to whether or not recording is in progress is repeated during the chapter creation process (S10). Here, if the recording is finished (S10: NO), the chapter creation process is finished, and while the recording is continued (S10: YES), the processes of steps S20 to S100 are repeatedly executed.

  During recording, the posting acquisition unit M1 first accesses a predetermined posting site (S20), and acquires posts related to the program being recorded from the posting site (S30). There may be one posting site or a plurality of posting sites to be acquired. The posting site is a site that can output posts made by an unspecified number of contributors and the posting time of the posting, and examples include Twitter (registered trademark), social networking service, bulletin board site, etc. . In addition, the posting site described in the second embodiment to be described later can output identification information for identifying a contributor assigned to each post.

  The posting acquisition unit M1 first acquires program identification information in order to access a predetermined posting site. The program identification information is identification information for specifying a post related to the recorded program from a plurality of posted posts. For example, a program identifier (for example, a hash code) assigned to each post The URL of the bulletin board opened for each program.

For example, the posting acquisition unit M1 specifies a program identification information by accessing a predetermined URL.
Specifically, recording is being performed from a site that supplies program identification information (for example, a web page prepared by a TV station, a web page prepared by a STB20 manufacturer or vendor, a predetermined TV program guide created by volunteers, etc.). The hash code for specifying the program and the URL of the bulletin board are acquired as the program identification information.
When the posting site is a composite bulletin board site having a plurality of bulletin boards, the names of the bulletin boards are sequentially obtained, and the URL of the bulletin board including the target program name in the name is obtained as program identification information. When the bulletin board is classified into a category (television, radio, etc.), if a name is acquired for the bulletin board included in the program category, the time until the program identification information is acquired can be shortened. Also in the social networking service, the program identification information can be specified by the same method as the bulletin board. In addition, when predetermined information (for example, an account, a password, etc.) is required for accessing the posting site, it is assumed that it is stored in advance in the storage medium in the STB 20 by the manufacturer / vendor of the STB 20 or the user of the STB.
Of course, if the program identification information is predetermined (fixed), the program identification information stored in advance in a predetermined storage medium provided in the STB 20 may be acquired, and if the rules for creating the program identification information are determined. The program identification information may be automatically generated according to the creation rule.

  Next, the emotion expression extraction unit M2 extracts an emotion expression from the post acquired by the post acquisition unit M1 (S40). That is, it is determined whether or not the post includes an element indicating emotional expression. In this embodiment, an emotion expression classification database D4 in which words indicating emotion expressions are registered is prepared in advance, and emotion expressions are extracted with reference to the database.

  FIG. 4 shows an example of the emotion expression classification database. The emotion expression classification database D4 shown in the figure is composed of an ID, the number of characters, the sum of character values, an emotion expression (word), and an emotion classification. The emotion expression for the ID and the sum of the number of characters and the character value. (Word) and emotion classification are associated with each other. That is, 0 to a plurality of emotion expressions (words) and emotion classifications of the emotion expressions (words) are associated with the numerical characteristics of the characters. By using numerical features in this way, in determining whether a certain word is an emotional expression, it is possible to determine a match with only the emotional expression associated with the numerical feature of the word. Therefore, the processing time can be greatly shortened.

  FIG. 5 is a diagram for explaining how to obtain the sum of character values. In the figure, characters are arranged in a matrix, and different numerical values are assigned to each row and each column. For example, “00” is assigned to row A, “10” to row, “20” to row, “30” to row, “40” to row, “00” to row, “00” to row, “01”, “02” in the row, “03” in the row, and “04” in the row are assigned. Taking the word “fun” as an example here, the character value of “ta” is “00 + 30 = 30”, the character value of “no” is “04 + 40 = 44”, and the character value of “shi” is “01 + 20 = 21”. The character values of “I” and “I” are “01 + 00 = 01”, and the sum of the character values of “fun” is “96”. In this way, the value obtained by replacing each character constituting the word with a numerical value is easy to calculate and difficult to overlap between the words, so that the search target words can be significantly narrowed down.

  FIG. 6 shows another configuration example of the emotion expression classification database. The emotion expression classification database shown in the figure is configured as one database file for each numerical feature, and the file name of each database file includes a numerical feature. Therefore, the emotion expression extraction unit M2 specifies a file name including a numerical feature obtained from a word by a file name search, and determines a match with the emotion expression (word) recorded in the specified file. Therefore, the number of accesses to the database can be reduced, and the overhead (preparation time until processing) generated when accessing the database and searching for a record can be shortened.

  After the emotional expression is extracted, the post is registered in the post data management database D1. FIG. 7 is a diagram illustrating an example of the post data management database D1. As shown in the figure, the posting data management database D1 includes a posting ID, a program ID, a posting time, a poster, a posting content, and an emotion classification. The post ID is a unique identifier for each post. The program ID is an identifier that is unique to each program, and can be used to specify the posting of each program when posts related to a plurality of programs are managed by one posting data management database D1. The posting time is the time when the posting is posted on the posting site. The contributor is the identifier of the user who posted each post. The posted content is data acquired by the posted acquisition unit M1. The emotion classification is an emotion expression extracted from the post by the emotion expression extraction unit M2 described above. Posts from which emotion expressions are extracted are registered in the post data management database D1 with emotion classification, and posts from which emotion expressions are not extracted are registered in the post data management database D1 without emotion classification.

  Next, the statistics unit M3 statistics the emotional expression within a certain time (S50). That is, the emotional expressions extracted from each post are totaled for each time, and emotional expressions that occupy the majority within the totaling time are determined and stored as emotional expression statistical information D2.

  Next, the statistical unit M3 detects the amount of change in the number of posts (S60). That is, it regularly measures how many postings are made during a certain time interval, and detects an increase rate compared to the previous certain time.

FIG. 8 is a diagram for explaining an example of change detection of the number of posts. In this figure, the horizontal axis is time t, the vertical axis is the posting amount PD, the time interval between times t1, t2, t3, t4, t5, and t6 is constant, and the change in the posting amount from time t1 to time t2 is ΔPD _12. , The change in the posting amount from time t2 to time t3 is ΔPD ₂₃ , the change in the posting amount from time t3 to time t4 is ΔPD ₃₄ , the change in the posting amount from time t4 to time t5 is ΔPD ₄₅ , and the change from time t5 to time A change in the posting amount up to t6 is denoted as ΔPD ₅₆ . In the drawing, ΔPD ₁₂ has a small increase rate from ΔPD _01, but ΔPD ₂₃ greatly increases from ΔPD ₁₂ . When the increase rate detected in this way increases beyond a certain amount as compared to the previous certain time, the time is determined as the climax timing (the climax start timing) (S70: YES). It should be noted that the increase rate of the number of posts in this way exceeds a certain amount compared to the previous certain time constitutes an example of characteristic variation in the present embodiment.

  FIG. 9 is a diagram for explaining another example of change detection of the number of posts. FIG. 6A shows the posting amount PD with respect to time t, and FIG. 6B shows the slope ΔPD (differentiation) of the posting amount PD with respect to time t. As shown in FIG. 5B, the time at which the slope zero-crosses from large to small indicates an increase rate corresponding to the peak position of the posting amount. That is, it is determined that the time when the inclination has crossed zero is the rising timing (the peak timing of the rising) (S70: YES). Note that the zero crossing of the slope constitutes an example of characteristic variation in the present embodiment.

  When the excitement timing is detected in this way, the emotion expression statistics within the excitement time are acquired from the emotion expression statistical information D2 (S80), and the posts within the excitement time are acquired from the post data management database D1 (S90). . In addition, when the excitement timing is specified by the example of FIG. 8, emotion expressions and posts within a certain time are acquired from the specified timing. When the excitement timing is specified in the example of FIG. 9, emotion expressions and postings up to a certain time before the specified timing, or emotion expressions and postings within a certain time before and after the specified timing are acquired. Of course, the acquisition range of emotional expressions can be determined in various ways using various statistical methods such as the rise and fall of the peak and the half width of the peak.

  Then, the chapter setting unit M4 assigns chapters to the program being recorded based on the rising timing (S100). The time for setting a chapter (chapter start time) is determined based on the criteria shown in FIGS.

  FIG. 10 is a diagram illustrating a first reference for the correspondence between the climax timing and the chapter assignment location. As shown in FIG. 5B, the chapter start position is set to a time that is a predetermined time tx after the rise. It should be noted that the excitement range shown in FIG. 10A is specified using the method shown in FIGS. The fixed time tx is a correction value for inclusion in the chapter until the chapter is not started from the exciting part of the program but until the program is excited. As described above, since chapter assignment is performed retroactively by a time tx determined to some extent from the climax in the posted amount PD, the chapter is started from a time that includes a certain degree of progress to the climax of the program.

  FIG. 11 is a diagram illustrating a second reference for the correspondence between the climax timing and the chapter assignment location. As shown in FIG. 4B, the chapter start position is set to a time that is a predetermined time ty after the rise. It should be noted that the excitement range shown in FIG. 11A is also specified using the method shown in FIGS. The fixed time ty is a correction value that eliminates the difference between the actual excitement time of the program and the time when the posting was made. In this way, chapter assignment is performed retroactively by a certain amount of time ty from the climax of the posting amount PD, so that the gap between the climax timing of the program and the climax timing at the posting site can be eliminated.

  The chapter set in this way can identify the climax timing of the chapter by referring to the posting data management database D1 of the time zone corresponding to the chapter, and the posting of the time zone corresponding to the chapter and the Emotional expressions included in posts are associated. Of course, posts and emotional expressions corresponding to the rising timing of chapters may be extracted and stored in association with each other.

  As described above, according to the present embodiment, the STB 20 that records the content of the television broadcast on the recording medium receives the content of the television broadcast and extracts the program content (moving image, audio, etc.) extracted from the television broadcast. A recording unit 21 for recording, a communication unit 22 for communicating with a posting site associated with a program received by the recording unit and recorded on a recording medium, and posting and posting time via the communication unit 22 A chapter creation unit 23 that sets a chapter in the content recorded by the recording unit 21 based on the obtained time variation of the number of posts, and associates the emotional expression included in the posting in the time zone corresponding to the chapter with the chapter; Accordingly, it is possible to provide the STB 20 capable of efficiently performing chapter division.

(3) Content playback:
The reproduction of the content created as described above will be described with reference to FIG. FIG. 12 shows a general flow of reproduction. Of course, the order of reproduction is not limited to this, and reproduction can be performed while appropriately replacing S200 to S220 in FIG. 12, displaying them alone, or combining them.
In the reproduction of the content shown in FIG. 12, first, a selection screen for selecting desired content from the recorded content is displayed (S200). In addition, although the face mark demonstrated in the below-mentioned modification is displayed on each screen demonstrated below as an image showing emotional expression, of course, you may show emotional expression with a character as mentioned above.

  FIG. 13 is an example of a content selection screen. In the content selection screen shown in the figure, thumbnails relating to a plurality of contents are displayed in an orderly manner, and a program name (file name) and a reproduction time are displayed in association with each thumbnail. The thumbnail is, for example, a representative screen of each content, and may be a top video of the content or a video of a time corresponding to the excitement specified by the above-described chapter setting. On the content selection screen, the emotional expression of the excitement time in each content is displayed in correspondence with each content with reference to the emotion statistical information and the post data management database. The user searches for desired content by referring to emotional expressions, and selects any content by operating a remote controller (not shown).

  FIG. 14 is another example of the content selection screen. On the content selection screen shown in the figure, frames formed in a matrix form with each broadcasting station and broadcasting time zone are displayed as in a so-called television program guide, and each content is displayed at a corresponding position in the frame. It is displayed. In the figure, March 15, 2011 is selected in the date selection box at the upper left, and the thumbnails of the six contents broadcast / recorded on this day are positions corresponding to the broadcast times of the respective contents on the frame. Is displayed. For example, the content shown in the upper left of the figure indicates that the broadcast station 1 is broadcasting from 1 am on March 15, 2011. The user can select a desired broadcast date (recording date) and select any content from the selection screen by operating a remote controller (not shown).

  FIG. 15 is another example of the content selection screen. The content selection screen shown in the figure has a shape in which a search box is added to the screen of FIG. By appropriately inputting a character string or emotion expression into the search box, the user can display a list of contents related to the character string or emotion expression from the recorded contents. When searching by emotion expression, a desired one of the emotion expressions registered in the emotion expression classification database D4 described above may be selected, or a character string input in the search box may be selected. The search may be performed after converting into the emotion expression based on the emotion expression classification database D4.

  When content is selected, a chapter selection screen is displayed (S210). FIG. 16 is a diagram illustrating an example of a chapter selection screen. In the chapter selection screen shown in the figure, the program title is displayed at the upper left, and the chapters set for the program are displayed in a list. In each chapter, a chapter number, a chapter thumbnail, a user reaction (emotion expression), post data, a chapter start time, and a chapter end time are displayed. Posts in the time zone corresponding to each chapter are displayed in the post data, and emotion expressions that occupy the majority of the chapters are displayed from the emotion expressions included in the posts in each chapter. The Note that the post data corresponding to the emotional expression of the chapter is extracted from the post data management database D1, and a representative part thereof is displayed on the chapter selection screen. Of course, long posts are displayed by replacing them with “...” Etc. except for a part (the head portion of the post, the portion corresponding to the emotional expression, etc.). The user selects any chapter by operating a remote controller (not shown).

  When a chapter is selected, content playback is started (S220). FIG. 17 is a diagram illustrating an example of a content playback screen. In the figure, a content display area A1, a posted data display area A2, and an emotion expression display area A3 are provided. In the content display area A1, the content selected to be reproduced is displayed. In the posted data display area A2, posts posted at the timing when the displayed content is broadcast are displayed. This post is displayed changing over time, such as scrolling as the content being played back progresses. In the emotional expression display area A3, the emotional expression included in the post posted at the timing when the displayed content is broadcast is displayed, for example, with a face mark or the like according to a modified example described later. At this time, a face mark corresponding to the posting may be displayed at a random position in accordance with the posting timing in the emotion expression display area A3.

  When a post or emotional expression is extracted from the post data management database D1 during playback, time conversion is performed so that the recording timing and the content playback timing are synchronized as shown in FIG. In other words, the recording date and time is recorded in the content, and by posting each recording timing and emotion expression corresponding to each reproduction timing by converting each timing of the content to the recording date and time based on the recording date and time, post data management It can be acquired from the database D1.

  By playing content as described above, on the content selection screen, chapter selection screen, and content playback screen, display based on emotional expressions is performed to assist the user's selection, and the content playback screen is synchronized with the playback position. By displaying posts and emotional expressions at the same time, you can increase your sense of realism.

(4) Configuration of the second embodiment:
In the first embodiment described above, there is a possibility that the chapter setting according to the user's preference may not be performed when the user's preference is different from the preference of the population (posters on the posting site), and the user's preference Different emotional expressions may be given to each chapter. Therefore, in the second embodiment, correction is performed to adapt the determination of excitement and the determination of the emotional expression given to the chapter to the user's preference. Specifically, by imposing higher weights on the posts of users who have similar preferences to the users than other users, the number of posts is raised to match the user's preferences, and the emotional expression that matches the user's preferences Try to occupy a lot at the timing of excitement.

  FIG. 19 is a block diagram showing a configuration of a recording / playback system according to the second embodiment. A recording / playback system 500 shown in the figure includes a television broadcasting station 510, a set top box (STB) 520, a digital television (DTV) 530, and a posting server 540. The STB 520 is connected to the DTV 530 and can output a television broadcast received from the broadcasting station 510 or a program recorded in the STB 520 to the DTV 530, and can output video and audio to the DTV 540. In addition, the STB 520 is connected to the posting server 540 via the network NT so as to be able to communicate, and accesses the posting server 540 to make a posting or obtain a posting from a posting site provided by the posting server 540. Can do.

  FIG. 20 is a block diagram showing the configuration of the STB 520. As shown in FIG. The STB 520 shown in the figure includes a recording unit 521, a chapter creation unit 523, and a weight creation unit 524. Since the recording unit 521 is the same as the recording unit 21 of the first embodiment described above, detailed description thereof is omitted. The chapter creation unit 523 is substantially the same as the chapter creation unit 23 of the first embodiment described above, and detailed description of common configurations and functions is omitted, but the chapter setting is performed using the weight created by the weight creation unit 524. This is different from the first embodiment in that That is, the chapter creation unit 523 sets the chapter for the content to be recorded by the recording unit 521 based on the time variation of the number of posts while weighting the post acquired via the communication unit 522, and weights the post. The emotional expression included in the posting in the time zone corresponding to the chapter is associated with the chapter. The weight creation unit 524 creates a weight to be given to a poster who is similar to the user's preference by performing a weight creation process described later.

  The weight creating unit 524 includes a control unit 524a and a recording medium 524b, and each function of the weight creating unit 524 is realized by the control unit 524a performing predetermined control processing. The control unit 524a and the recording medium 524b may be shared with the control unit and the storage medium constituting the chapter creating unit 523. In the recording medium 524b, the emotion expression classification database D54 is stored in advance, and the control processing of the control unit 524a is performed, so that the post data management database D51, the emotion expression statistical information D52, the post amount statistics, and the like as in the above-described embodiment. Information D53 and user information database D55 are stored. Each function realized by the weight creating unit 524 will be described below with reference to FIG.

(4-1) Weight creation processing:
FIG. 21 is a flowchart showing the overall flow of the weight creation process. The weight creation process shown in the figure is executed when the user is watching a program in real time. In this process, it is repeatedly detected whether or not the user has made a post (S300), and when a user's post is detected (S300: YES), the user's post is analyzed and weights and excitement added during emotion expression classification Processing such as determination of necessity of weight added at the time of determination and adjustment of the degree of weight is performed (S310 to S350).

  In steps S310 to S350, first, a user's post is acquired, and emotional expressions are extracted from the post (S310). That is, it is determined whether or not the post includes an element indicating emotional expression. More specifically, emotion expressions are extracted with reference to an emotion expression classification database D54 similar to the emotion expression classification database D4 in the first embodiment described above. If the user's post includes emotional expressions (S320: YES), the weight calculation processing is performed to change the weight (S330). The weight calculation process will be described later.

  Then, when the weighting calculation process ends, and when the user's post does not include the emotional expression (S320: NO), the user's post is stored (S340). More specifically, an identifier indicating the user's post is attached to the user's post and registered in the post data management database D51. As described above, when the adjustment of the weight based on the analysis of the user's posting is completed, the posting is made to the posting site (S350). Of course, the timing of posting to the posting site can be changed as appropriate.

(4-2) Weighting process:
FIG. 22 is a flowchart showing a detailed flow of the weighting process executed in step S330 of the weight creation process. When the weighting process is started, post data (post content, post time, poster identifier) in a time zone (neighboring time zone) up to a certain time before including the time when the user selects post (user post time) Obtained from the posting site (S400). The acquired posting data is registered in the posting data management database D1, and the classification of emotion expressions similar to that of the first embodiment described above is performed on each posting data, and emotion expressions are given. Further, the amount of change in the number of posts in the neighborhood time zone is also detected, and post amount statistical information relating to the program being watched by the user is also created. Furthermore, emotional expression is statistically calculated at regular intervals, and emotional expression statistical information is also created. Note that the range of the neighborhood time zone is determined so as to be able to determine the excitement.

  Next, a post that matches the “classification (user preference)” of the emotional expression included in the user post is acquired (S410). That is, a post including an emotion expression belonging to the same category as the emotion expression extracted in step S310 is extracted from the posts acquired in step S400. Then, the contributor identifier of the extracted post is acquired and collated with the user information database D55 (S420). If any poster identifier extracted in step S420 is not registered in the user information database D55, it is registered in the user information database D55 (S430). Note that the initial weight value assigned to a newly registered poster may be, for example, a default value (for example, 1), or a predetermined value (a user preference and The value may be increased by a value that is increased according to the number of times the posts are matched.

  FIG. 23 is a diagram illustrating an example of the user information database D55. In the figure, a user information database D55 is a database in which a registration ID for identifying each user in the present apparatus, a user name at the posting site, a service name at the posting site, and various weights are associated with each other. . The contributor identifier extracted in step S420 corresponds to the user name on the posting site. Various weights are individually created for each category of programs such as sports, news, drama, and comedy. This is because the viewer's preference may be different for each program category. In addition, the various weights are created by dividing them into weights for determining the excitement and weights used when determining the emotion expression classification for each time period. As described in the first embodiment, the determination of excitement is determined based on the total number of posts, but the emotion expression classification is determined based on the number of posts belonging to the emotion classification that occupies a large number of posts. This is because they have different properties.

  Also, the amount of change in the number of posts before and after the posting timing of the user is acquired (S440). The amount of change in the number of postings can be calculated by referring to the posting amount statistical information of the program created in step S400, and more specifically, by the same method as step S60 in the above-described embodiment. be able to.

  If the amount of change shows a certain rate of increase over a certain period of time in the vicinity of the user's posting timing (S450: YES), the user's posting timing is a boost on the posting site. It is determined that they match, and the process proceeds to the weighting process for adding emotion expression classification information (S460). That is, the user's preference matches the preference of the poster who occupies a large number of posting sites, and it is not necessary to correct the excitement determination based on the total number of postings on the posting site. On the other hand, if the amount of change does not indicate a certain increase rate compared to the previous certain time in the time zone near the user's posting timing (S450: NO), the user's posting timing rises on the posting site. And the process proceeds to a weighting process for swell determination (S470). This is because chapters may be set at positions different from the user's preference unless the climax judgment is corrected with weights.

(4-3) Weighting process for adding emotion expression classification:
FIG. 24 is a flowchart showing the process executed in step S460 described above, and the process of adjusting the weight assigned to the posting of a specific poster when performing emotion expression classification. The specific poster is a user registered in the user information database D55 and having a preference similar to that of the user. In this process, first, posts in the neighborhood time zone are acquired from the post data management database D51 (S500), and the emotional expression classification of the specific poster in the neighborhood time zone is statistics (S510). Further, the emotion expression classification statistics of all the posters created in step S400 in the neighborhood time zone are also acquired (S520).

  Then, the emotional expression number Esmax that occupies the majority in the emotional expression classification statistics of the specific poster is compared with the emotional expression number Eamax that occupies the majority in the emotional expression classification statistics of all the posters (S530). Here, when Esmax is equal to or greater than Eamax (S530: NO), the emotion expression classification that occupies the majority of the specific posters matches the emotion expression classification that occupies the majority of all the posters, and thus the weight is particularly changed. There is no need, and the processing of FIG. 24 is terminated.

On the other hand, when Esmax is less than Eamax (S530: YES), the emotion expression classification that occupies a large number among the specific posters and the emotion expression classification that occupies the large number among all the posters do not match. It is necessary to increase the value so that Esmax is equal to or greater than Eamax. Therefore, the emotional expression classification weight of each specific poster is increased by a predetermined amount until Esmax is equal to or greater than Eamax (S540), and the determination in step S530 is repeated. Note that the emotion expression numbers Esmax and Eamax calculated / compared in step S530 are set in the user information database D55 for the postings of each specific contributor set in the user information database D55 at the time of calculation. It is calculated by assigning weights.
By adjusting the weight as described above, the emotion expression classification given to the content recorded at the user posting timing (swell timing) matches the user preference.

(4-4) Weighting process for swell determination:
FIG. 25 is a flowchart showing the process executed in the above-described step S470, and the process of adjusting the weight attached to the posting of a specific contributor when performing the excitement determination. In this process, first, posts in the neighborhood time zone are acquired from the post data management database D51 (S600), and the emotional expression classification of the specific poster in the neighborhood time zone is statistics (S610). Then, the exciting time zone for the specific poster is specified based on the emotion expression classification statistics, and it is determined whether or not the posting timing of the user matches the exciting time zone for the specific poster (S620).

  Here, if the user's posting timing matches the excitement time zone for a specific contributor, increase the weight imposed on the specific contributor when calculating the number of posts when performing the excitement determination The number of posts by the specific poster is corrected (S630 to S650). That is, the weight for determining the climax of the specific contributor registered in the user information database D55 is corrected so as to be increased by a predetermined amount (S630), and all the contributors in the nearby time zone are used while using the corrected weight. (S640), and it is determined whether or not a climax occurs in the neighborhood time zone in the total number of posts (S650). Then, when there is no excitement in the neighborhood time zone in the number of posts (S650: NO), correction is repeatedly executed until an excitement occurs in the neighborhood time zone (S630 to S650). If excitement occurs in the neighborhood time zone in the number of posts (S650: YES), the process is terminated as the correction is completed. As described above, by appropriately adjusting the weight for the climax determination for the specific poster, the overall climax position determined based on the all-party man-hours can be corrected to a timing that matches the user's preference.

(4-5) Chapter creation processing according to the second embodiment:
The chapter creation process performed when the weight for a specific poster is set as described above is basically the same as that in the first embodiment described above, but differs in the following points.

  First, in the emotional expression statistics performed in step S50, the poster of each posting is identified by an identifier, and for the posting made by a specific poster, the value assigned a weight for emotional expression classification is set as the number of postings. That is, when a user whose emotion expression classification weight for the genre of the program being recorded has posted five times within a certain time, the number of posts made by the specific poster is “7”. .5 "corrections and statistics. Therefore, an emotion expression classification that more strongly reflects an emotion expression classification of a user who has a preference similar to the user's preference is likely to be an emotion expression classification that occupies a large number within the aggregation time.

In addition, in the aggregation of the number of posts for detecting the amount of change to be performed for the determination of excitement in step S60, for the post made by a specific contributor, the value assigned the weight for determination of excitement is set as the number of posts. That is,
When a user whose weight for determining the excitement for the genre of the program being recorded has posted four times within a predetermined time, the number of posts made by the specific poster is “7.2”. It is calculated after being corrected to times. Therefore, a rising position of a user having a preference similar to the user's preference is likely to be a rising position in all posts.

  In steps S80 to S100, the time at which the chapter is allocated is determined based on the rising position after being corrected with the weight for determining the rising as described above, and the emotion expression classification given to the chapter is: The emotion expression classification corrected by the weight for emotion expression classification at the rising position after being corrected by the weight for determination of climax is obtained. Therefore, a chapter is set at a position that matches the user's preference, and the emotion expression classification given to the chapter also matches the user's preference.

Also, when counting the number of posts in the climax determination, the publishing determination weight set as described above is totaled while giving to the posting of the specific contributor, or the specific contributor is not weighted for climax determination It may be possible to select whether or not the postings of all the contributors are added with the same weight (without weighting). For example, selection can be made by providing an item for selecting a chapter setting method on a menu screen displayed by operating a predetermined key of a remote controller (not shown).
Similarly, with regard to the classification set for each chapter, in the aggregation of the number of posts when deciding the category that occupies the majority of posts, it is aggregated while giving weights for emotion expression classification to the posts of specific posters, or specific posts It may be possible to select whether to add the same weight to all the postings of the posters (without weighting) without giving weights for emotion expression classification to the person. This selection can also be made, for example, by providing an item for selecting a chapter classification method on a menu screen displayed by operating a predetermined key of a remote controller (not shown).

  As described above, in the second embodiment, the STB 520 includes the reproducing unit that reproduces the content extracted from the broadcast signal of the television broadcast, and the recording unit 521 that records the content extracted from the television broadcast on the recording medium. , The specific contributor who made the posting of the same classification as the posting to the posting site at the same time as the posting made from the STB 520 to the posting site associated with the content during playback of the content by the playback unit A chapter is set for the content recorded by the recording unit based on the user information database D55 and the time variation of the number of postings of the posting site that is aggregated while giving a higher weight to the posting of the specific poster than the other postings, Chapter creation that sets the classification based on posts in the time zone corresponding to the chapter to the chapter And parts 523, it is constituted with a. That is, by adding up the number of posts while increasing the weight of a specific contributor who has similar preferences to the user of STB 520 as compared to other contributors, the content is based on the time variation of the number of posts on the posting site. The chapter to be set is set at a timing reflecting the user's preference.

(5) Various modifications:
(5-1) Modification 1:
The above-described recording and chapter setting may be executed by a server device arranged on the network, and content and chapter information may be distributed in response to a request from the client device. FIG. 26 shows a system related to recording and reproduction according to the first modification. The system 200 includes a server device 210 that performs content recording and chapter setting, a client device 220 that receives distribution of content and chapter information from the server device 210, and a posting server 240 similar to the posting server described above. ing. The server apparatus 210 stores an emotion expression classification database D4 in advance, and performs recording and chapter creation processing similar to those of the STB 20 in the first embodiment described above while acquiring a post by communicating with the post server 240. Thus, the posting data management database D1, the emotion expression statistical information D2, and the posting amount statistical information D3 are created and recorded on the recording medium while the content is recorded on the recording medium.

The client device 220 requests the server device 210 to distribute content at a desired timing. Then, the server apparatus 210 creates thumbnails, post data, emotion expressions, and the like as appropriate and transmits them to the client apparatus 220. The client device 220 requests the server device 210 for content and chapters to be played when the user operates the operation unit to select the content or chapter. The server device 210 distributes the requested content together with a post posted on the post server 240 at the time of broadcasting the content and an emotional expression specified by analysis of the post. The client device 220 reproduces these contents together with posts and emotional expressions.
As described above, the present invention can also be realized as a server device.

(5-2) Modification 2:
The server device 210 may only create chapter data, record content in the client device, and receive the chapter data from the server device at an arbitrary timing. By sharing the recording and the chapter setting in this way, the load on the client device and the posting server is reduced. When only chapter data is created, the acquisition of the posting is started in accordance with the start time of the broadcast, and the post is acquired until the end time of the broadcast time. The analysis and the creation of chapter data may be performed at the timing when the post is acquired, or may be performed separately later.

(5-3) Modification 3:
When the chapter data is distributed from the server device to the client device, it is determined by the user's selection of the client device whether to distribute the chapter data preset in the content or the chapter data preset in the content. You may make it do. The chapter data set in advance in the content is chapter data created by the same processing as the chapter setting in the embodiment described above. The chapter data set in advance in the content is the production of content such as a broadcasting station. It is chapter data created originally. According to the third modification, user convenience is improved.

(5-4) Modification 4:
In the above-described embodiment, the emotional expression is determined based on the character of the post. However, when the face mark representing the emotion can be used on the posting site, the emotional expression may be determined based on the face mark. In the fourth modification, the emotion expression classification database according to the above-described embodiment includes data indicating the correspondence between the character code of the face mark and the emotion expression.

Needless to say, the present invention is not limited to the above embodiments. It goes without saying for those skilled in the art,
・ Applying mutually interchangeable members and configurations disclosed in the above embodiments by appropriately changing the combination thereof.− Although not disclosed in the above embodiments, it is a publicly known technique and the above embodiments. The members and configurations that can be mutually replaced with the members and configurations disclosed in the above are appropriately replaced, and the combination is changed and applied. It is an embodiment of the present invention that a person skilled in the art can appropriately replace the members and configurations that can be assumed as substitutes for the members and configurations disclosed in the above-described embodiments, and change the combinations and apply them. It is disclosed as.

DESCRIPTION OF SYMBOLS 10 ... Broadcasting station, 20 ... Set top box, 21 ... Recording part, 21a ... Broadcast receiving part, 21b ... Recording part, 22 ... Communication part, 23 ... Chapter preparation part, 23a ... Control part, 23b ... Recording medium, 30 ... Digital TV 40 ... Posting server 100 ... Recording / playback system 200 ... System 210 ... Server device 220 ... Client device 240 ... Posting server 500 ... Recording / playback system 520 ... Set top box 510 ... Broadcasting station 521 ... Recording unit, 522 ... Communication unit, 523 ... Chapter creation unit, 524 ... Weight creation unit, 524a ... Control unit, 524b ... Recording medium, 530 ... Digital television, 540 ... Post server, A1 ... Content display area, A2 ... Posted data display area, A3 ... Emotion expression display area, D1 ... Posted data management database, D ... emotional expression statistical information, D3 ... contribution amount statistical information, D4 ... emotional expression classification database, D51 ... contribution data management database, D52 ... emotional expression statistical information, D53 ... contribution amount statistical information, D54 ... emotional expression classification database, D55 ... User information database, M1 ... Post acquisition unit, M2 ... Emotion expression extraction unit, M3 ... Statistics unit, M4 ... Chapter setting unit, NT ... Network

Claims (10)

In a recording apparatus comprising a recording unit for recording content extracted from a television broadcast on a recording medium,
A posting acquisition unit that communicates with a posting site associated with the content to acquire a posting and a posting time;
A classification unit that classifies posts based on emotional expressions included in the posts;
A chapter that sets a chapter for the content recorded by the recording unit based on a time variation of the number of posts during broadcasting of the content on the posting site, and sets a classification based on a posting in a time zone corresponding to the chapter for the chapter A setting section;
A recording apparatus comprising:   The recording apparatus according to claim 1, wherein the chapter setting unit sets a classification based on an emotion expression extracted from a post in a time zone corresponding to the chapter for the chapter. A storage unit for storing a correspondence relationship between a word, a numerical feature of the word, and a classification of the word;
The chapter setting unit specifies a classification of each post by referring to the correspondence relationship with respect to a numerical feature calculated from a word included in a post in a time zone corresponding to the chapter, and sets a time zone corresponding to the chapter. The recording apparatus according to claim 1, wherein classifications that dominate a posting are associated with the chapters.   The chapter setting unit sets a timing that goes back a predetermined time from a timing at which a predetermined characteristic change indicating that the number of posts has increased in the time variation of the number of posts as a start time of the chapter. The recording device according to claim 3.   The chapter setting unit associates, with the chapters, classifications that occupy a large number of posts in a time zone in which a predetermined characteristic variation indicating that the number of posts has increased due to the time variation of the number of posts has occurred. 5. The recording device according to any one of 4. A playback device for playing back content recorded by the recording device according to any one of claims 1 to 5,
An apparatus for displaying a list of a plurality of contents recorded in the recording apparatus, wherein a classification of each content is displayed corresponding to each content. A playback device for playing back content recorded by the recording device according to any one of claims 1 to 5,
A playback device, wherein a chapter classification of each chapter is displayed in correspondence with each chapter on a screen for displaying chapters of content recorded in the recording device. A playback device for playing back content recorded by the recording device according to any one of claims 1 to 5,
The content playback screen recorded in the recording device includes a display area of the content, a classification display area that displays the classification in synchronization with the playback of the content, and when the recording unit records the content. And a post display area for displaying the post made to the posting site in synchronization with the content. In a server device that distributes TV broadcast content to client devices,
A recording unit for recording content extracted from a television broadcast on a recording medium;
A posting acquisition unit that communicates with a posting site associated with the content during broadcasting of the content and acquires a posting and a posting time;
A classification unit that classifies posts based on emotional expressions included in the posts;
A chapter that sets a chapter for the content recorded by the recording unit based on a time variation of the number of posts during broadcasting of the content on the posting site, and sets a classification based on a posting in a time zone corresponding to the chapter for the chapter A setting section;
A distribution unit that distributes the content set with the chapter to the client device in response to a request from the client device;
A server apparatus comprising: In a server device that distributes chapter information related to TV broadcast content,
A posting acquisition unit that communicates with a posting site associated with the content during broadcasting of the content and acquires a posting and a posting time;
A classification unit that classifies posts based on emotional expressions included in the posts;
A chapter setting unit that creates chapter information of the content based on time variation of the number of postings of the content on the posting site during broadcasting, and sets a classification based on posting in a time zone corresponding to the chapter information in the chapter information When,
A distribution unit that distributes the chapter information to the client device in response to a request from the client device;
A server apparatus comprising:

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