JP2005223534A - Receiver and method for generating summary graph - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receiver capable of easily selecting scenes wherein many viewers are interested among stored programs so as to realize efficient viewing of the stored contents and to provide a summary graph generating method for generating a summary graph indicating the particular scenes. <P>SOLUTION: A contents related information storage section 24 generates scene information for displaying posted text data acquired from an electronic bulletin board server 2 as contents related information, and a summary graph generating section 23 analyzes the contents related information to generate information for displaying a summary graph. An AV conversion section 12 generates a video signal on the basis of the plurality of generated information items as above. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a receiving device that extracts a specific scene in which a large number of viewers are interested and enables digest viewing, and a totaling graph creation method for creating a totaling graph indicating the specific scene.

  In a receiving apparatus having a large-capacity storage device such as a DVD recorder or a hard disk recorder, many contents such as programs and moving images for several tens of hours may be recorded and accumulated in the receiving apparatus. It would be very convenient for the user if there was a means for efficiently viewing the stored content.

  As a means of efficient viewing that can actually be used by the user, the fast-forward or fast-reverse button on the remote control is used to search for a specific scene while searching at high speed, or the playback seek bar on the playback control screen is moved. It was a way to search for a specific scene. As another means, there is a method of selecting a scene from a list of index screens automatically generated.

  In such a method, when the user wants to find a scene that is likely to be attracted from the stored programs, it takes time and effort to search for a specific scene efficiently.

  By the way, although there exists a thing which tries to display content related information synchronizing with the accumulate | stored program (for example, patent document 1), the means for selecting the specific scene which should pay attention to a program is not prepared. It was.

  In addition, there is a program that creates a change in interest in a program by real-time feedback from a user and evaluates the program (for example, Patent Document 2), but in order to select a specific scene for the stored program. No means were prepared.

Even when these methods are used, it is not easy for a user to search for a specific scene that is interested in the content itself.
Japanese Patent Laid-Open No. 10-136312 JP 2003-30105 A

  Therefore, the present invention provides a receiving device that enables easy selection of a scene that a large number of viewers are interested in from among stored programs, and a specific scene that realizes efficient viewing of the stored content. An object of the present invention is to provide a summary graph creation method for creating a summary graph to be shown.

  In order to achieve the above object, the receiving device according to claim 1 uploads a posted sentence for the content created by a viewer who is viewing the content, and adds the time when the content was uploaded. Connected to an electronic bulletin board server that stores the posted text as content related information via a network, receives the distributed content, acquires the content related information related to the content from the electronic bulletin board server, and And a plurality of the content-related information are stored, content-related information including a specific character string is extracted from the plurality of content-related information, and the content Uploaded at the time corresponding to the time information indicating the playback start position. Content-related information storage means for extracting the posted text from the content-related information, and total graph information for displaying a total graph representing the posting frequency over time of the content-related information containing the specific character string And the total graph creation means for converting the coordinates on the total graph selected by the viewer to create the time information, and the content requested to be recorded by the viewer is recorded and recorded. Content reproduction means is provided for acquiring the content from the reproduction start position specified by the time information in order to reproduce the content related to the content related information.

  The receiving device according to claim 2 is the receiving device according to claim 1, wherein the content-related information storage unit uploads at a time corresponding to the time information created by the aggregate graph creating unit. The posted message is extracted from the content related information.

  The receiving device according to claim 3 is the receiving device according to claim 1 or 2, wherein the content-related information storage unit uploads the posted text selected by the viewer. The time information is created from

  The receiving device according to claim 4 is the receiving device according to claim 1, wherein the total graph creation unit creates the total graph information including a time corresponding to the time information. It is characterized by doing.

  Further, according to the method for creating a total graph according to claim 5, a posted sentence for the content created by a viewer who views the content is uploaded, and the posted sentence is added with a time when the uploaded is added. An electronic bulletin board server for storing content-related information; connected to the electronic bulletin board server via a network; receiving the distributed content; obtaining the content-related information related to the content from the electronic bulletin board server; In order to display a total graph representing the posting frequency of the content related information with the passage of time in the content related information including a specific character string in a content viewing system configured to receive the posted text and reproduce the content A summary graph creation method to create summary graph information for The receiving device stores the content related information, and extracts content related information in which the content related information includes the specific character string, and the specific character string is included. A filtering process that counts the number of content-related information per unit time or the number of the specific character string included in the content-related information per unit time; the number of the content-related information per unit time; Or a total graph creation step of creating the total graph information based on the number of the specific character strings per unit time.

  Further, the aggregate graph creation method according to claim 6 is the aggregate graph creation method according to claim 5, wherein the electronic bulletin board server includes a specific character string per unit time of the content related information. Or a filtering process step of counting the number of specific character strings included in the content-related information per unit time.

  The aggregate graph creation method according to claim 7 is the aggregate graph creation method according to claim 6, wherein the receiving device is configured to count the content related information counted by the electronic bulletin board server per unit time. Or a total graph creation step of creating the total graph information by acquiring the number of the specific character strings per unit time.

  According to the present invention, a user can find out a scene in which many viewers are interested from the content being viewed by a simple operation, so that the content can be efficiently viewed. .

  An embodiment of the present invention will be described with reference to FIGS.

<< First Embodiment >>
First, as a first embodiment, when content-related information is obtained from an electronic bulletin board constructed by a content-related information server, content-related information is analyzed on the receiving device 1a side, and an aggregate graph is displayed on the television screen Will be described with reference to FIGS. In the present embodiment, the target content is a television program.

  As shown in FIG. 1, the configuration of the entire system in the first embodiment includes a receiving device 1a, an electronic bulletin board server 2a, and a communication terminal 3 used by a viewer. The receiving device 1a and the communication terminal 3 are connected to the Internet. The electronic bulletin board server 2a is connected via a network 4 such as a LAN. Note that AV (Audio and Visual) data (hereinafter referred to as contents) of program broadcasts, moving pictures and the like (hereinafter collectively referred to as contents) via a wired communication network, a broadcast satellite, a communication satellite, or a communication tower that transmits terrestrial broadcasts. Generic name) is supplied. The receiving device 1a of the present invention may have the function of the communication terminal 3.

  In addition, contents can be stored regardless of whether they are paid or free. Note that the present invention can be used in a time shift application even if the content is prohibited to be stored, as long as the temporary time shift application is permitted.

  As illustrated in FIG. 2, the reception device 1 a includes a reproduction control unit 11, an AV conversion unit 12, an operation information reception unit 13, a video output unit 14, and an audio output unit 15.

  The reproduction control unit 11 has a function of receiving content supplied from the outside, and posted message data (receiving device) that is connected to the electronic bulletin board server 2a and includes posted messages posted on the electronic bulletin board server 2a. 1a side has a function of acquiring content-related information) and generating an aggregate graph (details will be described later).

  The AV conversion unit 12 has a function of generating a video signal and an audio signal for outputting the content to the display device 7 based on the content supplied from the content control unit.

  Further, the operation information receiving unit 13 has a function of receiving operation data indicating the operation content of the viewer transmitted from the input device 16.

  The video output unit 14 has a function of outputting the video signal generated by the AV conversion unit 12, and the audio output unit 15 has a function of outputting the audio signal generated by the AV conversion unit 12.

  The input device 16 is, for example, the remote controller shown in FIG. 3, and is an input device for the user to input information and commands to the receiving device 1a. Processes that can be operated from the remote controller include content reproduction, item selection in the graph screen, and the like. Other input devices include a keyboard and a mouse.

  Further, as shown in FIG. 4, the reproduction control unit 11 includes a content reception unit 21, a content storage unit 22, a total graph creation unit 23, a content related information storage unit 24, a time management unit 25, and a storage scheduler unit 26. Is done.

  The content receiving unit 21 has a function of supplying the received content to the AV conversion unit 12, a content reception command supplied from the operation information receiving unit 13 when the viewer operates the input device 16, or a storage scheduler unit 26. And receiving the content based on the content reception command from, and supplying the received content to the content storage unit 22.

  The content distribution source may receive a program distributed through a communication system in addition to broadcasting. When the distribution method is analog, the content receiving unit 21 performs conversion from an analog signal to digital data using a compression encoding method such as MPEG2 (Moving Picture Experts Group). In the case of a configuration in which the input of the content storage unit 22 accepts analog as it is, conversion from analog to digital data is not particularly required, and a method of outputting an analog received video / audio signal may be used. If the broadcast or communication method is digital, the received video / audio signal is converted into a digital format suitable for storage.

  The content storage unit 22 has a function of recording the content received by the content reception unit 21, acquiring the recorded content, and supplying the recorded content to the AV conversion unit 12 (details will be described later).

  The total graph creation unit 23 has a function of analyzing the content related information acquired from the thread and creating a graph screen showing a change in the number of information over time (details will be described later).

  The content related information storage unit 24 acquires posted text data related to the content to be stored from a specific thread of the electronic bulletin board server 2a, and performs a filtering process on the posted text data (content related information). It has a function (details will be described later).

  The time management unit 25 has a function of storing reproduction time information generated by a reproduction time conversion unit 33 (to be described later) and supplying the reproduction time information to the aggregate graph creation unit 23 and the content related information storage unit 24.

  The storage scheduler unit 26 stores the recording reservation information of the content supplied from the operation information receiving unit 13 when the viewer operates the input device 16, and the content receiving unit 21 receives the recording reservation information based on the recording reservation information. It has a function of supplying content reception information and supplying content recording information supplied from the content reception unit 21 to the content storage unit 22. This recording reservation command includes reservation information including an identifier for identifying content such as a channel number, a recording start time, a recording end time, and a content name such as a program name.

  The storage scheduler unit 26 also supplies the content related information acquisition control information and the viewing target content information, which are control information for accessing the electronic bulletin board server 2a and instructing the start of thread acquisition, to the content related information storage unit 24. Have This viewing target content information includes a broadcast station name, broadcast start time, program time length, program name, and the like.

  Further, as shown in FIG. 5, the content storage unit 22 includes a write processing unit 31, a read processing unit 32, a reproduction time conversion unit 33, and a content storage unit 34.

  The write processing unit 31 is based on the content recording command supplied from the operation information receiving unit 13 or the content recording command from the accumulation scheduler unit 26 when the viewer operates the input device 16. Has a function of recording the content supplied from the content storage unit 34.

  The read processing unit 32 is a content supplied from the content receiving unit 21 based on a playback command or playback time information of content supplied from the operation information receiving unit 13 when the viewer operates the input device 16, or It has a function of acquiring the content recorded in the content storage unit 34 and supplying it to the AV conversion unit 12.

  The reproduction time conversion unit 33 has a function of converting the position of the reproduction seek bar displayed in the total graph window into time information and generating reproduction time information.

  The content storage unit 34 is a storage device such as a hard disk device, and the content is recorded by the write processing unit 31.

  Further, as shown in FIG. 6, the total graph creation unit 23 includes an analysis processing unit 41, a graph generation unit 42, a coordinate time conversion unit 43, and an analysis result storage unit 44.

  The analysis processing unit 41 counts the number of content-related information acquired from the content-related information storage unit 24 within a unit time, generates aggregate graph information that is the number of cases, and acquires it from the content-related information storage unit 24 within the unit time The content related information is compared with a preset detection keyword, the specific information is detected, the number of detected specific information is counted, and aggregate graph information that is the number of the specific information is generated.

  The graph generation unit 42 has a function of acquiring aggregate graph information generated by the analysis processing unit 41 from the analysis result storage unit 44 and generating a graph image.

  The coordinate time conversion unit 43 has a function of converting the coordinate information of the selected graph data into reproduction time information.

  The analysis result storage unit 44 has a function of storing the aggregate graph information generated by the analysis processing unit 41.

  Further, as shown in FIG. 7, the content related information storage unit 24 includes a thread list acquisition processing unit 51, a thread list storage unit 52, an acquisition thread selection processing unit 53, a current acquisition thread storage unit 54, and a content related information acquisition processing unit. 55, a filter processing unit 56, an acquisition thread storage unit 57, a reacquisition determination unit 58, a content related information reference unit 59, and a coordinate time conversion unit 60.

  The thread list acquisition processing unit 51 has a function of accessing the electronic bulletin board server 2a on the basis of viewing target content information and acquiring a currently registered thread list.

  The thread list storage unit 52 has a function of storing the thread list acquired by the thread list acquisition processing unit 51.

  The acquisition thread selection processing unit 53 has a function of selecting a specific thread related to the content to be viewed from the thread list recorded in the thread list storage unit 52 and the viewing target content information.

  The current acquisition thread storage unit 54 has a function of storing a specific thread selected by the acquisition thread selection processing unit 53.

  The content related information acquisition processing unit 55 has a function of acquiring content related information corresponding to the related thread from the electronic bulletin board server 2a.

  The filter processing unit 56 has a function of removing or replacing content-related information including a specific character string with another character string.

  The acquisition thread storage unit 57 has a function of storing content-related information from which a specific character string has been removed or replaced by the filter processing unit 56.

  The reacquisition determination unit 58 has a function of determining whether or not the thread list recorded in the thread list storage unit 52 is the latest.

  The content related information reference unit 59 has a function of acquiring content related information in which a specific character string is removed or replaced from the acquisition thread storage unit 57 based on viewing target content information.

  The coordinate time conversion unit 60 has a function of converting the coordinates of specific content related information selected from the content related information displayed in the content related information window into reproduction time information.

  The electronic bulletin board server 2a records the posted text posted by the viewer as posted text data in a format having data items as shown in FIG. 8, for example, together with information such as a broadcasting station, a program, a broadcasting date, and a broadcasting time. It has a function of generating an HTML file for publishing a posted message as an electronic bulletin board, and a function of adding a posted time to posted message data. The electronic bulletin board server 2a records the posted sentence data by distinguishing threads based on, for example, a broadcasting station, a program, a broadcasting date, a broadcasting time, and the like.

  When a posted sentence is uploaded in real time as the broadcasted content progresses, the electronic bulletin board server 2a adds a time to maintain the accuracy of the posted time, and information other than the posted time is communicated. Although it may be uploaded together with the posted text from the terminal 3, information including the time may be uploaded together with the posted text from the communication terminal 3. In addition, when accepting upload of a posted sentence while viewing the recorded content once (the time zone during which the content is viewed is different), it is uploaded together with the posted sentence from the communication terminal 3. And

  This electronic bulletin board server 2a constructs an electronic bulletin board site on the Internet as a communication means via the network 4, and information exchange regarding contents is performed on the electronic bulletin board site. In particular, in the present invention, an electronic bulletin board site is constructed for the purpose of allowing viewers to share their thoughts on the content. In addition, the storage area of the electronic bulletin board server 2a is subdivided, and there are a large number of storage areas, so-called threads, where posts from viewers are gathered around a specific topic. For these threads, the viewer posts (uploads) posted text while viewing the content (broadcast program). Hereinafter, the term “thread” means the storage area or information indicating the storage area.

  Many threads are posted on the thread related to the content being watched immediately after watching the scene that the viewer is interested in. In particular, there are many descriptions that indicate a scene change in various postings posted to threads. For example, when a new person appears, a posted sentence with a description expressing the scene change is posted. A description that indicates the scene change uses a common scene change character string, although some transitions are predicted due to the fashion at that time. Hereinafter, information including this character string is referred to as scene change description information.

  The posted text data for recording the posted text shown in FIG. 8 has data items such as a broadcasting station, a program, a broadcast date, and a broadcast time as information for distinguishing the subject of the bulletin board, and a posting number for recording each posted text. , Post time, speaker, and post text data items. In addition, the HTML file for publishing the posted text as an electronic bulletin board also includes data on the broadcasting station, program, broadcasting date, and broadcasting time as information for distinguishing the title of the bulletin board, and further, a posting number for recording each posted text, Post time, speaker, and post data are described.

  Note that the posted text data in FIG. 8 is shown in XML format as an example, but is not limited to this, and communication between the communication terminal 3 and the electronic bulletin board server 2a is as follows. Instead of XML, HTML may be used, and if the application of the communication terminal 3 is a dedicated application compatible with the present invention, a unique format may be used. Further, the recording method of the data when the posted text is recorded in the electronic bulletin board server 2a may be an original database format instead of the XML format shown in FIG.

  The communication terminal 3 includes an input device 16 such as a keyboard and a mouse, and a communication device connected to the network 4. Further, the communication terminal 3 can execute application software having a communication function such as a Web browser, and a viewer posts a posted sentence to a specific thread of the electronic bulletin board server 2a by using this application software ( Upload).

  The viewer posts from the communication terminal 3 to the electronic bulletin board server 2a while viewing the content, and it is desirable that the post be as quick as possible following the progress of the content. For this purpose, a character string indicating a frequently used character string or a scene change is registered in advance as a word.

  It should be noted that transmission / reception of various data between the receiving device 1 and the electronic bulletin board server 2 is performed based on the rules of file transfer protocols such as HTTP and FTP, and the various data are inserted into a predetermined file format or message header. Although it is transmitted and received, it is not particularly limited to this method. Similarly, various data transmission / reception between the communication terminal 3 and the electronic bulletin board server 2 is performed based on the rules of the file transfer protocol, and the various data are inserted into a predetermined file format or message header and transmitted / received. However, it is not particularly limited to this method.

  As described above, the electronic bulletin board server 2 has been exemplified by an existing electronic bulletin board system. However, the electronic bulletin board server 2 is a server that provides dedicated content-related information installed for the purpose of linking with the receiving device 1. May be. Moreover, the server for the purpose of communication within a small group may be used.

  Further, the content related information may include information on the content distribution side in addition to the general viewer. In the case of a server that provides dedicated content-related information that is installed for the purpose of linking with the receiving device 1, the data format of the content-related information that is registered in advance is unified to provide a more accurate content-related information. Information analysis processing can be realized.

  Next, an outline of the operation of the receiving device 1a will be described.

  Normally, the content receiving unit 21 receives content to be distributed and supplies the received content to the content storage unit 22. The content storage unit 22 records the content in the content storage unit 34 therein. Here, the content receiving unit 21 is controlled by a manual operation by the user's remote controller (input device 16) or by a control from the accumulation scheduler unit 26 for realizing automatic accumulation.

  On the other hand, the content related information storage unit 24 automatically acquires posted text data (content related information) related to the content to be stored in the content storage unit 22 from a specific thread of the electronic bulletin board server 2a. Regardless of whether the content is stored in the content storage unit 22, the content related information storage unit 24 accesses a specific thread of the electronic bulletin board server 2a by a manual operation from the remote controller (input device 16). Also good.

  The content related information storage unit 24 creates screen information for displaying the posted sentence data acquired from the electronic bulletin board server 2a as the content related information, and the total graph creation unit 23 analyzes the content related information and totals it. Create information to display the graph. Based on the plurality of pieces of information thus created, the AV converter 12 generates a video signal. The video signal is output via the video output unit 14 and the audio output unit 15, and the user can view the content and the linked content-related information.

  The AV conversion unit 12 synthesizes images from the content storage unit 22, the total graph creation unit 23, the content related information storage unit 24, the content reception unit 21, and the like, and sends the accompanying audio to the video output unit 14. FIG. 9 shows an example of an output screen output from the video output unit 14 to the display device 7 at that time.

  As shown in FIG. 9, the output screen includes a plurality of windows, a playback window (part (A) in FIG. 9), a content related information window (part (B) in FIG. 9), and a total graph window (in FIG. 9). (C) part). Note that the layout of each window in FIG. 9 is an example, and other layouts may be used. Further, each window may be able to be individually displayed or deleted. Furthermore, as shown in FIG. 10, full screen display may be performed for any one window. In the case of full screen display, the contents related information window and the summary graph window are not visible. At this time, as shown in FIG. 10, in the full-screen playback window, the playback seek bar (part (D) in FIG. 9) for specifying the playback position is erased from the screen, and the program contents are displayed on the entire screen. You may be made to do.

  The reproduction window is a window for reproducing and displaying the content being received in real time or the content itself stored in the receiving device 1a. The video of this window is supplied from the content receiver 21 or the content storage unit 22.

  That is, when the content being delivered in real time is received, the content reception unit 21 or the video via the content storage unit 22 is used, and when the content stored in the receiving device 1a is reproduced, from the content storage unit 22 Use the video.

  A playback seek bar is displayed in the playback window. This playback seek bar indicates the current playback position as a percentage of the entire stored program being played back. The user can start playback from an arbitrary position in the stored program by directly operating the playback seek bar from the remote controller (input device 16). In the screen example of FIG. 9, a playback seek bar is displayed at the bottom of the playback window. It should be noted that the display of the upper left time in the playback window is merely a descriptive display of the temporal synchronization relationship with other windows and does not need to be displayed on the actual screen.

  The content related information window displays content related information around a certain time. This window image is generated by the content related information storage unit 24, and the name of the program being viewed, the name of the broadcasting station, the name of the associated thread, and the like are also displayed. The content related information window displays content related information related to the specified time. A scroll bar that can move up and down the screen is displayed at the edge of the screen, and content related information that is not displayed in the screen can also be scrolled up and down for display.

  The aggregate graph window is a window that displays the temporal transition of the number of content-related information. Therefore, the two axes of the total graph window indicate the number of cases and time, respectively. In FIG. 9, the vertical axis indicates the number of cases and the horizontal axis indicates time. This total graph window is generated by the total graph creation unit 23, and the user can know the temporal transition of the number of content-related information. The display unit of the time axis is arbitrary, but the minimum unit may be a unit of time attached to each content related information in the electronic bulletin board server 2a, for example, “minute”.

  In addition, the axis indicating the number of cases displayed in the summary graph window may change greatly depending on the popularity of the content or the network 4 status. Zoom out and display. For this reason, even if the number of cases becomes larger than the normal number, the data does not protrude from the total graph window. Further, the graph display may have an enlargement / reduction function.

  11A to 11C are examples of the total graph created by the total graph creation unit 23. FIG. In each figure, the horizontal axis represents time, and the vertical axis represents the number of information registrations per unit time or the number of specific information registrations. As a display form of the graph, the number of cases may be displayed and the graph data may be displayed with high resolution as in the total graph window shown in FIG. Further, as shown in FIG. 11A, the number of cases may be divided within a certain range, classified into several stages, and displayed as a five-stage evaluation using marks such as stars. In this display method, the user can know a rough analysis result by the number of stars.

  For example, when the selection cursor can be freely moved in the screen like a mouse, an arbitrary time can be selected by moving the cursor. On the other hand, when the keyboard or remote controller (input device 16) can move only in a limited direction such as up / down / left / right, the selected time is highlighted as shown in FIGS. 11 (b) and 11 (c), or A selection frame is displayed so that the user can know the selection time.

  Furthermore, the threshold value display line (dotted line in FIG. 9) shown in FIG. 9 and the threshold value display line (dotted line in FIG. 11) of FIG. However, the user's attention may be easily concentrated. The threshold display line is calculated and displayed by the total graph creation unit 23 based on the number of information registrations or the number of specific information registrations, for example, an average for a certain period before and after, or an average for each program.

  Next, the operation of the content storage unit 22 will be described.

  The content storage unit 22 shown in FIG. 5 performs program storage processing and stored program playback processing. At the time of automatic storage, the write processing unit 31 of the content storage unit 22 receives content specified by the storage scheduler unit 26, for example, content received based on a schedule reserved in advance, or a condition specified in advance. The matching content is recorded in the content storage unit 34. Further, during manual operation, the write processing unit 31 starts and stops content recording in accordance with an operation from the remote controller (input device 16).

  On the other hand, at the time of real-time reception, the write processing unit 31 sends the received program to the content storage unit 34 so that time-shifted viewing that allows the user to go back and reproduce the content received, so-called chasing playback, is possible. The content is supplied to the read processing unit 32 while recording. The content supplied to the read processing unit 32 is supplied to the AV conversion unit 12 as it is. This is a process of performing reproduction in parallel with recording. Therefore, it is desirable that the content storage unit 34 is a randomly accessible recording device such as a recordable DVD or a hard disk.

  Also, during content playback including time-shift viewing, the read processing unit 32 of the content storage unit 22 reads the content (video / audio data) recorded from the content storage unit 34 and converts the read content into the AV conversion unit 12. To supply.

  Further, when the playback time conversion unit 33 converts the position of the playback seek bar displayed in the aggregate graph window into time information, and generates playback time information indicating the playback position of the content and supplies it to the read processing unit 32, the read processing unit 32 acquires the content from the time (reproduction position) specified in the reproduction time information and supplies it to the AV conversion unit 12.

  The content storage unit 34 is preferably a random-accessible recording device. However, when time-shift viewing is not performed, a sequential-accessible recording device such as a VTR that can be played back from the stored program is possible. A simple recording apparatus may be used.

  In addition, the time management unit 25 that has received the reproduction time information supplies the reproduction time information to the total graph creation unit 23 and the content related information storage unit 24. When the reproduction time information is supplied, the aggregation graph creating unit 23 generates aggregation graph information for displaying the aggregation graph in the time zone including the reproduction time in the aggregation graph window. Further, the content related information storage unit 24 acquires content related information for displaying the content related information at the reproduction time in the content related information window.

  Next, the operation of the total graph creation unit 23 will be described.

  In the total graph creation unit 23 shown in FIG. 6, the content related information acquired from the thread is analyzed, and total graph information for displaying a change in the number of information as time passes is generated.

  When the analysis processing unit 41 of the total graph creation unit 23 acquires the content related information from the content related information storage unit 24, it generates total graph information that is a result of analyzing the acquired content related information, and stores it in the analysis result storage unit 44. Record.

  The graph generation unit 42 refers to the total graph information recorded in the analysis result storage unit 44, creates a graph, and supplies the graph to the AV conversion unit 12 as a total graph image.

  The aggregate graph information generated by the analysis processing unit 41 is the number of information registrations that is the number of content-related information per fixed time interval, or specific information registration that is further counted by filtering the content-related information under specific conditions. Number is recorded information.

  Below, the analysis process of the content relevant information which the analysis process part 41 performs is demonstrated in detail using the flowchart of FIG. 12 and FIG. First, a case where the total graph information is information in which the number of information registrations, which is the number of content-related information per certain time interval, is recorded will be described with reference to the flowchart of FIG.

  First, the analysis processing unit 41 sets a period for analyzing content-related information (step S01). This analysis period is, for example, from the broadcast start time to the end time of the content being viewed, and when playing from the middle, it is from the time of the playback start position to the end time. Next, the analysis processing unit 41 acquires the content related information registered in the thread during the unit time from the beginning of the period to be analyzed from the content related information storage unit 24 (step S02). At this time, the unit time is, for example, 1 minute.

  Next, the analysis processing unit 41 counts the number of content-related information acquired in step S02, and records the counted number in the analysis result storage unit 44 as total graph information (step S03). Next, the analysis processing unit 41 determines whether or not the analysis period set in step S01 has ended (step S04). If it has ended, the process ends, and if not, the process proceeds to step S02. The above process is repeated.

  Next, a case where the total graph information is information in which the number of registered specific information obtained by further filtering the content related information under specific conditions is recorded will be described with reference to the flowchart of FIG.

  An example of the number of specific information registrations is the number of scene change description information. The number of scene change description information is a number obtained by counting descriptions indicating a scene change among posted sentences posted to a thread.

  First, the analysis processing unit 41 sets a period for analyzing content-related information (step S11). This analysis period is, for example, from the broadcast start time to the end time of the content being viewed. Next, the analysis processing unit 41 acquires the content related information registered in the thread during the unit time from the beginning of the period to be analyzed from the content related information storage unit 24 (step S12). At this time, the unit time is, for example, 1 minute.

  Next, the analysis processing unit 41 compares the acquired content-related information with a preset detection keyword to detect specific information (step S13). When the specific information is the scene change description information, the scene change is indicated, and some character strings used frequently are used as detection keywords.

  Next, the analysis processing unit 41 counts the number of specific information detected in step S13, and records the counted number in the analysis result storage unit 44 as total graph information (step S14). Next, the analysis processing unit 41 determines whether or not the analysis period set in step S01 has ended (step S15). If it has ended, the process ends, and if it has not ended, the process proceeds to step S12. The above process is repeated.

  The graph generation unit 42 acquires the total graph information generated in this way from the analysis result storage unit 44, generates a total graph image and supplies it to the AV conversion unit 12, and the graph as shown in FIG. Displayed in the graph window.

  Further, the aggregate graph window is not limited to displaying a graph, but can be operated to select specific graph data by using a remote controller (input device 16). When the viewer selects specific graph data with the remote controller (input device 16), the coordinate information of the selected graph data is supplied from the operation information receiving unit 13 to the coordinate time conversion unit 43, and the coordinate time conversion unit 43 The coordinate information is converted into reproduction time information and supplied to the time management unit 25.

  The time management unit 25 that has received the reproduction time information supplies the reproduction time information to the content storage unit 22 and the content related information storage unit 24. When the reproduction window is not displayed, the content storage unit 22 reproduces the content from the time (reproduction position) specified in the reproduction time information and displays it on the reproduction window.

  When the content related information window is not displayed, the content related information storage unit 24 displays the content related information at the reproduction time in the content related information window.

  Note that the playback time information is calculated by converting the graph data on the screen from the coordinates of the selected position, but if the time resolution becomes too fine with the simple conversion as it is, it matches the accuracy in the time direction of the aggregate graph. The data may be rounded. For example, when the minimum resolution of the time axis is data in minutes, the minimum unit of the time axis may be set to “minutes” instead of “seconds”.

  Further, as the content progresses, the graph generation unit 42 detects that the playback position is ahead of the current aggregate graph by referring to the playback time information. In this case, the total result of the time zone including the current playback time information is obtained again from the analysis result storage unit 44, a graph is generated, the total graph window is automatically scrolled in the time direction, and the graph of the current playback position is displayed. Redisplay so that appears in the screen. Further, when there is an operation for stopping playback, playback in the content storage unit 22 is also stopped.

  Next, the operation of the content related information storage unit 24 will be described.

  The operation of the content-related information storage unit 24 includes an operation at the time of viewing a real-time program for viewing a program in real time, an operation at the time of automatic storage processing by the storage scheduler unit 26, It is divided into the operation at the time of accumulated viewing processing for viewing. Each operation will be described below with reference to FIGS.

  An operation at the time of viewing a real-time program in which a user views content-related information while viewing the content will be described with reference to FIGS. 14 and 15.

  When the content related information acquisition control information is supplied from the storage scheduler unit 26, the content related information storage unit 24 starts a process of acquiring a thread from the electronic bulletin board server 2a.

  When the content-related information acquisition control information is supplied from the accumulation scheduler unit 26, the thread list acquisition processing unit 51 acquires viewing target content information from the accumulation scheduler unit 26 (step S21).

  Next, the thread list acquisition processing unit 51 accesses the electronic bulletin board server 2a based on the acquired viewing target content information, acquires the currently registered thread list, and records it in the thread list storage unit 52 ( Step S22). In the electronic bulletin board server 2a, a thread list is prepared according to a predetermined classification such as broadcast station.

  Next, the acquisition thread selection processing unit 53 selects a specific thread related to the content to be viewed from the thread list recorded in the thread list storage unit 52 and the viewing target content information, and the selected thread is selected. The obtained thread is recorded in the current acquisition thread storage unit 54 as a related thread (step S23).

  When the content related information acquisition control information is supplied from the accumulation scheduler unit 26 and the related thread is acquired from the current acquisition thread storage unit 54, the content related information acquisition processing unit 55 sends the content related information corresponding to the related thread to the electronic bulletin board server. 2a (step S24), and supplies the content related information to the filter processing unit 56. And the filter process part 56 performs a filter process with respect to the acquired content relevant information, and records a process result in the acquisition thread | save preservation | save part 57 (step S25). At this time, the filter processing unit 56 performs a process of removing or replacing the content related information including the specific character string with another character string, and the specific character string is removed or replaced as a processing result. Record related content information.

  Further, the content related information acquisition processing unit 55 internally monitors the passage of time and determines whether or not a predetermined time has passed (step S26). If the predetermined time has elapsed, the process proceeds to step S24 and the same process is repeated. If the predetermined time has not elapsed, the reacquisition determination unit 58 determines whether or not the thread list recorded in the thread list storage unit 52 is the latest (step S27), and is old information. When it determines, it transfers to the process of step S22. Here, whether or not the thread list recorded in the thread list storage unit 52 is old information is determined by whether the information amount recorded in the acquisition thread storage unit 57 approaches the maximum information amount that can be registered in one thread, or This is done based on whether it has been exceeded or the elapsed time from the previous thread acquisition time.

  If it is determined that the information is not old, the reacquisition determining unit 58 determines whether or not the viewing of the content has ended (step S28). If not, the process proceeds to step S26. When the viewing of is terminated, the processing is terminated.

  On the other hand, when the content related information acquisition control information is supplied from the accumulation scheduler unit 26 and the viewing target content information is acquired from the accumulation scheduler unit 26 (step S31), the content related information reference unit 59 corresponds to the acquired viewing target content information. Content-related information to be acquired is acquired from the acquisition thread storage unit 57 (step S32). This content related information is content related information from which a specific character string has been removed or replaced.

  Next, the content related information reference unit 59 generates an image of the content related information window based on the content related information acquired from the acquisition thread storage unit 57, and supplies the image to the AV conversion unit 12 (step S33). The content related information window is displayed by the AV conversion unit 12. Further, the content related information reference unit 59 monitors the passage of time internally and determines whether or not a predetermined time has passed (step S34). If the predetermined time has elapsed, the process proceeds to step S32 and the same process is repeated.

  The predetermined time is, for example, 1 minute, and the content-related information is displayed in synchronization with the playback window screen. The predetermined time may be the same in step S26 and step S34, and the content related information acquired from the thread may be displayed with an early response.

  The content-related information reference unit 59 determines whether or not the content viewing has ended (step S35). If the content viewing has not ended, the processing proceeds to step S34. If the content viewing ends, the processing ends. .

  If the viewer selects a channel while viewing the content, the process is executed again from step S31, and by acquiring new viewing target content information, the thread to be referred to is automatically switched.

  The operation at the time of automatic accumulation in which the receiving apparatus 1a automatically accumulates like an answering machine will be described with reference to FIG.

  This processing is performed during the automatic accumulation period or after the automatic accumulation. When the content related information acquisition control information is supplied from the storage scheduler unit 26, the content related information storage unit 24 starts a process of acquiring a thread from the electronic bulletin board server 2a.

  When the content related information acquisition control information is supplied from the accumulation scheduler unit 26, the thread list acquisition processing unit 51 acquires viewing target content information from the accumulation scheduler unit 26 (step S41). Next, the thread list acquisition processing unit 51 accesses the electronic bulletin board server 2a based on the acquired viewing target content information, acquires the currently registered thread list, and records it in the thread list storage unit 52 ( Step S42). In the electronic bulletin board server 2a, a thread list is prepared according to a predetermined classification such as broadcast station.

  Next, the acquisition thread selection processing unit 53 selects a specific thread related to the content to be viewed from the thread list recorded in the thread list storage unit 52 and the viewing target content information, and the selected thread is selected. The obtained thread is recorded in the current acquisition thread storage unit 54 as a related thread (step S43).

  When the content related information acquisition control information is supplied from the accumulation scheduler unit 26 and the related thread is acquired from the current acquisition thread storage unit 54, the content related information acquisition processing unit 55 displays the content related information corresponding to the related thread on the electronic bulletin board server. 2a (step S44), and supplies the content related information to the filter processing unit 56. Then, the filter processing unit 56 performs a filtering process on the acquired content related information, and records the processing result in the acquisition thread storage unit 57 (step S45). At this time, the filter processing unit 56 performs a process of removing or replacing the content related information including the specific character string with another character string, and the specific character string is removed or replaced as a processing result. Record related content information.

  Next, the reacquisition determination unit 58 determines whether or not the thread list recorded in the thread list storage unit 52 is the latest (step S46). Transition to processing. Here, whether or not the thread list recorded in the thread list storage unit 52 is old information is determined by whether the information amount recorded in the acquisition thread storage unit 57 approaches the maximum information amount that can be registered in one thread, or This is done based on whether it has been exceeded or the elapsed time from the previous thread acquisition time.

  If it is determined that the information is not old information, the reacquisition determining unit 58 determines whether or not the viewing of the content has ended (step S47). If not, the process proceeds to step S46. When the viewing of is terminated, the processing is terminated.

  An operation at the time of storage and reproduction in which a user views a program that has already been stored in the receiving apparatus 1a together with content-related information will be described with reference to FIG.

  When the content related information acquisition control information is supplied from the storage scheduler unit 26 and the viewing target content information is acquired from the storage scheduler unit 26 (step S51), the content related information reference unit 59 is content corresponding to the acquired viewing target content information. The related information is acquired from the acquisition thread storage unit 57 (step S52). This content related information is content related information from which a specific character string has been removed or replaced.

  Next, the content related information reference unit 59 generates an image of the content related information window based on the content related information acquired from the acquisition thread storage unit 57 and supplies the image to the AV conversion unit 12 (step S53). The content related information window is displayed by the AV conversion unit 12. Further, the content related information reference unit 59 internally monitors the passage of time and determines whether or not a predetermined time has passed (step S54). If the predetermined time has elapsed, the process proceeds to step S52 and the same process is repeated.

  The predetermined time is, for example, 1 minute, and the content-related information is displayed in synchronization with the playback window screen.

  The content related information reference unit 59 determines whether or not the reproduction of the content has ended (step S55). If it has not ended, the process proceeds to step S54. If the content viewing ends, the process ends. .

  Further, the content related information window is not limited to display of the content related information, and specific content related information can be selected by the remote controller (input device 16). The coordinate time conversion unit 60 converts the coordinates of the selected content-related information into reproduction time information.

  The coordinate time conversion unit 60 supplies the converted reproduction time information to the time management unit 25. When the reproduction time information is supplied, the time management unit 25 supplies the reproduction time information to the content storage unit 22 and the total graph creation unit 23.

  Next, when the playback window is not displayed, the AV conversion unit 12 newly displays the playback window, and the content storage unit 22 plays back the content from the position specified in the playback time information. Further, when the total graph window is not displayed, the AV conversion unit 12 newly displays the total graph window, and the total graph creation unit 23 generates an image of the total graph in the time zone including the reproduction time.

  The time management unit 25 manages playback time. The time management unit 25 has a clock that manages the reproduction time among the content storage unit 22, the total graph creation unit 23, and the content related information storage unit 24, and inputs and outputs reproduction time information.

  That is, when there is a playback request from any of the content storage unit 22, the total graph creation unit 23, and the content related information storage unit 24, the playback time information including the playback start time is supplied to the other two blocks. To do. Similarly, when there is a playback control request such as stop, pause, fast forward, rewind, etc., playback control information is supplied to the other two blocks.

  Note that the playback time is not the absolute time when the content is transmitted from a broadcasting station or the like, but the elapsed time from the beginning of the content, that is, the relative time, and the playback position of the content is specified from the relative time.

<< Second Embodiment >>
As a second embodiment, the electronic bulletin board server 2b includes an electronic bulletin board analysis storage unit 61 that generates aggregate graph information from content-related information, and the receiving device 1b acquires the aggregate graph information from the electronic bulletin board server 2b. 1b shows an example in which analysis of content related information is unnecessary.

  In the second embodiment, the receiving device 1b performs processing for acquiring aggregate graph information as an analysis result from the electronic bulletin board server 2b and displaying the aggregate graph information on the aggregate graph window. Compared with the first embodiment, the processing in the electronic bulletin board server 2b, the total graph creation unit 23, and the content related information storage unit 24 is different, and the other operations are the same. Therefore, only differences from the first embodiment will be described below.

  As shown in FIG. 18, the electronic bulletin board server 2b is added with an electronic bulletin board analysis storage unit 61 for converting the accumulated progress of the posted text into graph data. The electronic bulletin board analysis storage unit 61 of the electronic bulletin board server 2b analyzes the thread as needed, and records the result as summary graph information in the electronic bulletin board analysis storage unit 61. Similar to the first embodiment, the analysis result includes the number of content-related information registrations per unit time registered in the thread, the number of scene change description information per unit time, and the like.

  When the electronic bulletin board analysis storage unit 61 receives a request from the reception device 1b via the network 4, the electronic bulletin board analysis storage unit 61 transmits the analysis result to the reception device 1b. Therefore, it is not necessary to analyze the content related information on the receiving device 1b side, and only display processing is required. Note that the electronic bulletin board analysis storage unit 61 does not need to exist inside the electronic bulletin board server 2b, and may be realized by a different aggregation server from the electronic bulletin board server 2b.

  Also, the total graph creation unit 23 of the receiving device 1b displays a change in the number of information over time from the total graph information acquired by the content related information storage unit 24 from the electronic bulletin board analysis storage unit 61 of the electronic bulletin board server 2b. To generate an aggregate graph image. The summary up to the generation of the total graph image will be described below. First, the total graph creation unit 23 acquires the total graph information from the content related information storage unit 24 and records it in the analysis result storage unit 44. The graph generation unit 42 refers to the total graph information recorded in the analysis result storage unit 44, creates a graph, and supplies the graph to the AV conversion unit 12 as a total graph image.

  In addition, the operations of the content related information storage unit 24 include an operation at the time of viewing a real-time program for viewing the program in real time, an operation at the time of automatic storage processing by the storage scheduler unit 26, and already stored in the content storage unit 22. Although it is divided into the operation at the time of the accumulation viewing process for viewing the program, the operation at the time of the real time program viewing and the automatic accumulation process is partially different from the first embodiment, and the other operations are the same. Therefore, only different processes will be described.

  An operation at the time of viewing a real-time program in which a user views content-related information while viewing the content will be described with reference to FIGS. 19 and 20.

  When the content related information acquisition control information is supplied from the storage scheduler unit 26, the content related information storage unit 24 starts processing for acquiring a thread from the electronic bulletin board server 2b.

  When the content-related information acquisition control information is supplied from the accumulation scheduler unit 26, the thread list acquisition processing unit 51 acquires viewing target content information from the accumulation scheduler unit 26 (step S61).

  Next, the thread list acquisition processing unit 51 accesses the electronic bulletin board server 2b based on the acquired viewing target content information, acquires the currently registered thread list, and records it in the thread list storage unit 52 ( Step S62). In the electronic bulletin board server 2b, a thread list is prepared according to a predetermined classification such as a broadcasting station.

  Next, the acquisition thread selection processing unit 53 selects a specific thread related to the content to be viewed from the thread list recorded in the thread list storage unit 52 and the viewing target content information, and the selected thread is selected. The obtained thread is recorded in the current acquisition thread storage unit 54 as a related thread (step S63).

  When the content related information acquisition control information is supplied from the accumulation scheduler unit 26 and the related thread is acquired from the current acquisition thread storage unit 54, the content related information acquisition processing unit 55 acquires the content related information and the total graph information corresponding to the related thread. Is obtained from the electronic bulletin board server 2b (step S64), and the content related information and the total graph information are supplied to the filter processing unit 56. Then, the filter processing unit 56 performs a filter process on the acquired content related information, and records the total graph information and the processing result in the acquisition thread storage unit 57 (step S65). At this time, the filter processing unit 56 performs a process of removing or replacing the content related information including the specific character string with another character string, and the specific character string is removed or replaced as a processing result. Record related content information.

  Further, the content related information acquisition processing unit 55 internally monitors the passage of time and determines whether or not a predetermined time has passed (step S66). If the predetermined time has elapsed, the process proceeds to step S64 and the same process is repeated. If the predetermined time has not elapsed, the reacquisition determination unit 58 determines whether or not the thread list recorded in the thread list storage unit 52 is the latest (step S67), and is old information. When it determines, it transfers to the process of step S62. Here, whether or not the thread list recorded in the thread list storage unit 52 is old information is determined by whether the information amount recorded in the acquisition thread storage unit 57 approaches the maximum information amount that can be registered in one thread, or This is done based on whether it has been exceeded or the elapsed time from the previous thread acquisition time.

  If it is determined that the information is not old, the reacquisition determining unit 58 determines whether or not viewing of the content has ended (step S68). If not, the process proceeds to step S66. When the viewing of is terminated, the processing is terminated.

  On the other hand, when the content-related information acquisition control information is supplied from the storage scheduler unit 26 and the viewing-related content information is acquired from the storage scheduler unit 26 (step S71), the content-related information reference unit 59 is based on the acquired viewing-target content information. The content related information is acquired from the acquisition thread storage unit 57 (step S72). This content related information is content related information from which a specific character string has been removed or replaced.

  Next, the content related information reference unit 59 generates an image of the content related information window based on the content related information and supplies the image to the AV conversion unit 12 (step S73). The content related information window is displayed by the AV conversion unit 12. Further, the content related information reference unit 59 internally monitors the passage of time and determines whether or not a predetermined time has passed (step S74). If the predetermined time has elapsed, the process proceeds to step S72 and the same process is repeated.

  The predetermined time is, for example, 1 minute, and the content-related information is displayed in synchronization with the playback window screen. The predetermined time may be the same in step S66 and step S74, and the content related information acquired from the thread may be displayed with an early response.

  The content related information reference unit 59 determines whether or not viewing of the content has ended (step S75). If it has not ended, the process proceeds to step S74. If the content viewing ends, the processing ends. .

  The operation at the time of automatic accumulation in which the receiving apparatus 1b automatically accumulates like an answering machine will be described with reference to FIG.

  This processing is performed during the automatic accumulation period or after the automatic accumulation. When the content related information acquisition control information is supplied from the storage scheduler unit 26, the content related information storage unit 24 starts processing for acquiring a thread from the electronic bulletin board server 2b.

  When the content related information acquisition control information is supplied from the accumulation scheduler unit 26, the thread list acquisition processing unit 51 acquires viewing target content information from the accumulation scheduler unit 26 (step S81).

  Next, the thread list acquisition processing unit 51 accesses the electronic bulletin board server 2b based on the acquired viewing target content information, acquires the currently registered thread list, and records it in the thread list storage unit 52 ( Step S82). In the electronic bulletin board server 2b, a thread list is prepared according to a predetermined classification such as a broadcasting station.

  Next, the acquisition thread selection processing unit 53 selects a specific thread related to the content to be viewed from the thread list recorded in the thread list storage unit 52 and the viewing target content information, and the selected thread is selected. The acquired thread is recorded in the current acquisition thread storage unit 54 as a related thread (step S83).

  When the content related information acquisition control information is supplied from the accumulation scheduler unit 26 and the related thread is acquired from the current acquisition thread storage unit 54, the content related information acquisition processing unit 55 acquires the content related information and the total graph information corresponding to the related thread. Is obtained from the electronic bulletin board server 2b (step S84), and the content related information and the total graph information are supplied to the filter processing unit 56. Then, the filter processing unit 56 performs a filtering process on the acquired content related information, and records the total graph information and the processing result in the acquisition thread storage unit 57 (step S85). At this time, the filter processing unit 56 performs a process of removing or replacing the content related information including the specific character string with another character string, and the specific character string is removed or replaced as a processing result. Record related content information.

  Next, the reacquisition determination unit 58 determines whether or not the thread list recorded in the thread list storage unit 52 is the latest (step S86). Transition to processing. Here, whether or not the thread list recorded in the thread list storage unit 52 is old information is determined by whether the information amount recorded in the acquisition thread storage unit 57 approaches the maximum information amount that can be registered in one thread, or This is done based on whether it has been exceeded or the elapsed time from the previous thread acquisition time.

  If it is determined that the information is not old information, the reacquisition determining unit 58 determines whether or not the viewing of the content has ended (step S87). When the viewing of is terminated, the processing is terminated.

It is a figure which shows the system configuration | structure in 1st Embodiment. It is a figure which shows the rough functional structure of a receiver. It is a figure which shows the external appearance of a remote controller. It is a figure which shows the function structure of a reproduction | regeneration control part. It is a figure which shows the function structure of a content storage part. It is a figure which shows the function structure of a total graph preparation part. It is a figure which shows the function structure of a content related information storage part. It is a figure which shows an example of contribution text data. It is a figure which shows the example of a screen displayed on a display apparatus. It is a figure which shows the example of a screen (full screen) displayed on a display apparatus. It is a figure which shows an example (a)-(c) of an aggregation graph. It is a flowchart which shows the process at the time of counting the number of information registration. It is a flowchart which shows the process at the time of counting the specific information registration number. It is a flowchart which shows the process at the time of acquiring a thread | sled. It is a flowchart which shows the process at the time of displaying content relevant information. It is a flow chart which shows processing at the time of acquiring a thread at the time of automatic accumulation. It is a flowchart which shows the process at the time of displaying the content relevant information at the time of accumulation | storage reproduction | regeneration. It is a figure which shows the system configuration | structure in 2nd Embodiment. It is a flowchart which shows the process at the time of acquiring a thread | sled. It is a flowchart which shows the process at the time of displaying content relevant information. It is a flow chart which shows processing at the time of acquiring a thread at the time of automatic accumulation.

Explanation of symbols

1a, b Receiving device 2a, b Electronic bulletin board server 3 Communication terminal 4 Network 7 Display device 11 Playback control unit 12 AV conversion unit 13 Operation information receiving unit 14 Video output unit 15 Audio output unit 16 Input device 21 Content receiving unit 22 Content storage Unit 23 Aggregated graph creation unit 24 Content related information storage unit 25 Time management unit 26 Storage scheduler unit 31 Write processing unit 32 Read processing unit 33 Playback time conversion unit 34 Content storage unit 41 Analysis processing unit 42 Graph generation unit 43 Coordinate time conversion unit 44 Analysis result storage unit 51 Thread list acquisition processing unit 52 Thread list storage unit 53 Acquisition thread selection processing unit 54 Current acquisition thread storage unit 55 Content related information acquisition processing unit 56 Filter processing unit 57 Acquisition thread storage unit 58 Reacquisition determination unit 5 Content-related information reference unit 60 coordinate time conversion unit 61 an electronic bulletin board analyzing and storing section

Claims (7)

An electronic bulletin board server that uploads a posted text for the content created by the viewer who is viewing the content, stores the posted text as content-related information with the time when the upload was made, via the network A receiving device that receives the connected and distributed content, acquires the content-related information related to the content from the electronic bulletin board server, reproduces the content, and displays the posted text;
A plurality of the content related information is stored, content related information including a specific character string is extracted from the plurality of content related information, and uploaded at a time corresponding to time information indicating a reproduction start position of the content Content-related information storage means for extracting the posted text from the content-related information;
Create a summary graph information for displaying a summary graph indicating the posting frequency of the content related information including the specific character string with the passage of time, and convert coordinates on the summary graph selected by the viewer And a summary graph creating means for creating the time information,
The content requested to be recorded by the viewer is recorded, and from the recorded content, the content related to the content related information is reproduced, and the content is acquired from the reproduction start position specified by the time information. Content storage means to
A receiving apparatus comprising:   2. The content-related information storage unit extracts the posted sentence uploaded at a time corresponding to the time information created by the total graph creation unit from the content-related information. Receiver device.   The receiving apparatus according to claim 1, wherein the content-related information accumulation unit creates the time information from the upload time of the posted text selected by the viewer.   The receiving apparatus according to claim 1, wherein the total graph creation unit creates the total graph information including a time corresponding to the time information. An electronic bulletin board server that uploads a posted text for the content created by a viewer who is viewing the content, adds the time when the upload was made, and stores the posted text as content related information, and the electronic bulletin board A receiving device connected to a server via a network, receiving the distributed content, acquiring the content related information related to the content from the electronic bulletin board server, and reproducing the content and displaying the posted text A total graph creation method for creating total graph information for displaying a total graph representing the posting frequency of the content related information including the specific character string in the content viewing system configured with the passage of time. ,
The receiving device is:
A content-related information storage step for storing the content-related information and extracting content-related information in which a specific character string is included in the content-related information;
A filtering process for counting the number of the content related information including the specific character string per unit time or the number of the specific character string included in the content related information per unit time;
A total graph creation step of creating the total graph information based on the number of the content-related information per unit time or the number of the specific character string per unit time;
An aggregate graph creation method characterized by comprising: The electronic bulletin board server is:
A filtering process step of counting the number of the content related information including a specific character string per unit time or the number of the specific character string included in the content related information per unit time. The method for creating an aggregate graph according to claim 5. The receiving device is:
It has a total graph creation step of acquiring the number per unit time of the content related information counted by the electronic bulletin board server or the number per unit time of the specific character string to create the total graph information The total graph creation method according to claim 6.

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