JP2007036752A - System, method and program for reproducing contents - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system with which a telop attached to contents can be retrieved during the viewing of contents, and when the telop is detected, the contents and the telop can be synchronously reproduced from the timing of displaying the telop. <P>SOLUTION: A client apparatus comprises a moving picture contents storage part 250, and the moving picture contents storage part 250 comprises a moving picture contents storage area 251 and a telop storage area 252 for storing data concerned with telops to be displayed in the reproduction of contents. During the reproduction of contents to which a telop is added, a viewer inputs a keyword included in the telop to retrieve the telop. When the keyword is included in telops managed by the telop storage area 252, the contents are searched up to time when the telop is to be reproduced to reproduce the contents and the telop. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for reproducing and displaying content and data associated with the content in synchronization.

  There is known a content distribution system that allows a user at a remote location to view a lecture or presentation taken via a network.

For example, by using the content distribution technology disclosed in Patent Document 1 and recording and recording a captured video on a recording medium, the user can view lectures and presentations without time and place restrictions. .
Japanese Patent Laying-Open No. 2003-271458 (page 5-9, FIG. 1)

  In addition, there are many contents that can be easily understood by the viewer by attaching a telop.

  Viewers who play content with a telop using the content distribution system should rewind the content or re-view the content on another day if they find a point that is a point of understanding. And I often do the work of re-viewing the part with the telop. In this case, the viewer remembers the telop keyword at the point of understanding, but often does not remember when the telop is played. Therefore, in order to discover the telop, there is a problem that the viewer must re-view after repeating the fast-forward / rewind playback of the content. This problem hinders viewers' understanding of the content. Similar problems occur not only when viewing lectures but also when viewing content.

  The present invention has been made in view of the above problems, and can search for a telop attached to content, and if the telop is found, the content is cued until the time when the telop is displayed, It is an object of the present invention to provide a content playback apparatus, a content playback method, and a content playback program that can play back content and the telop together.

In order to achieve the above object, a content reproduction system according to the first aspect of the present invention provides:
Storage means for storing content that is continuously played back and a plurality of accompanying information associated with a plurality of positions of the content in association with each other;
Search information input means for receiving input of search information;
Search means for searching the accompanying information stored in the storage means using the search information input by the search information input means, and detecting the accompanying information corresponding to the search information;
Playback means for starting playback of the content from a position associated with the accompanying information detected by the search means;
It is characterized by providing.

Accompanying information display means for displaying the detected accompanying information when a plurality of the accompanying information is detected by the search means;
Accompanying information selection means for selecting one of a plurality of accompanying information displayed by the accompanying information display means;
Further comprising
The reproduction means starts reproduction of the content from a position associated with the accompanying information selected by the accompanying information selection means;
This may be a feature.

The storage means further stores image data in association with the accompanying information,
When the search means detects a plurality of the accompanying information, accompanying information image display means for displaying image data associated with the detected accompanying information and selection of an image to be displayed by the accompanying information image display means are selected. And an accompanying information image selection means for receiving,
The reproduction means starts reproduction of the content from a position associated with the accompanying information associated with the image data selected by the accompanying information image selection means.
This may be a feature.

In order to achieve the above object, a content reproduction method according to the second aspect of the present invention includes:
A storage step of associating and storing continuously reproduced content and a plurality of accompanying information associated with a plurality of predetermined positions of the content;
A search information input step for receiving input of search information;
Using the search information input in the search information input step, search for the accompanying information stored in the storing step, and detecting the accompanying information that matches the search information;
A reproduction step for starting reproduction of the content from a position associated with the accompanying information when matching accompanying information is detected by the search step;
It is characterized by providing.

In order to achieve the above object, a content reproduction program according to the third aspect of the present invention provides:
A storage process for storing content that is continuously played back and a plurality of accompanying information associated with a plurality of predetermined positions of the content in association with each other;
Search information input process that accepts input of search information,
A search process for searching incidental information stored by executing the storage process using the search information input by executing the search information input process, and detecting incidental information matching the search information;
A reproduction process for starting reproduction of the content from a position associated with the incidental information when matching incidental information is detected by execution of the search process;
Is executed.

  According to the present invention, a telop can be searched, and when the searched telop is found, the content and the telop can be reproduced together from the timing at which the telop is originally reproduced.

A remote lecture system according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the remote lecture system 1 according to the present embodiment includes a server device 100 and client devices 200 (200A to 200N) connected to the server device 100 via a communication network C. Although only three client devices are illustrated in FIG. 1, the distance learning system 1 has no limit on the number of client devices.

  The communication network C is a communication network based on a communication protocol such as TCP / IP (Transmission Control Protocol / Internet Protocol).

  As illustrated in FIG. 2, the server device 100 includes a data storage unit 110, a storage unit 120, a control unit 130, a communication control unit 150, and a bus 160. The data storage unit 110, the storage unit 120, the control unit 130, and the communication control unit 150 are interconnected by a bus 160.

  The data storage unit 110 includes, for example, a hard disk, and stores lecture content to be distributed and telops (captions) associated with the lecture content. Note that the lecture content is content including, for example, an instructor during a lecture and a moving image and sound shot on a board.

  The storage unit 120 includes, for example, a RAM (Random Access Memory) and a hard disk device, stores an operation program of the control unit 130 and provides the control unit 130 and a work area necessary for the operation of the control unit 130. I will provide a.

  The control unit 130 includes, for example, a CPU (Central Processing Unit), and based on the operation program stored in the storage unit 120, the data storage unit 110, the storage unit 120, the communication control unit 150, and the like. To control.

  The communication control unit 150 includes, for example, a communication device such as a NIC (Network Interface Card), is connected to the communication network C, and transmits / receives data to / from the client device 200.

  The data storage unit 110 includes a lecture content storage area 111 and a telop storage area 112, as shown in FIG.

  The lecture content storage area 111 stores one or more lecture contents.

  The telop storage area 112 stores, for each lecture content, a telop data table in which telop data associated with the content is registered. For example, in the example of FIG. 3, a telop data table 401 corresponding to “lecture content 1” and a telop data table 402 corresponding to “lecture content 2” are stored in the telop storage area 112, respectively. The telop here means letters, numbers, symbols, figures, photos, etc. that are displayed with lecture content on the display screen, and are used to display notes, important points, and explanations during the lecture. It is.

  In each entry of the telop data table, a telop display period 410, a telop 420, a keyword 430, and a thumbnail 440 are stored. The display period of the telop 420 is represented by the time from the start of content playback.

  The keyword 430 is used when searching for a telop. The keyword 430 is appropriately designated by the creator of the moving image content, and may be designated from a word or the like existing in the telop 420, or may be designated separately.

  The thumbnail 440 is, for example, still image data that captures a moving image of content at a timing specified at the start of the display timing display period 410, or moving image data that captures a moving image of content for a predetermined time from the timing, or A moving image or a still image created separately. The thumbnail 440 is used as a material for selecting one when two or more telops 420 corresponding to the input keyword are found.

  For example, the first entry in the telop data table 401 of “Lecture content 1” in FIG. 3 includes a period from 00:15:21 to 00:16:00 after the start of reproduction of “Lecture content 1”, that is, “Lecture content”. Data indicating that a telop “MPEG4 is used ...” is displayed for a period from the start of playback of “1” 15 minutes 21 seconds to 16 minutes 0 seconds, and the keyword is “MPEG” And data indicating “moving image” and thumbnails (still images) of images during the telop display period are stored.

  As shown in FIG. 4, the client device 200 shown in FIG. 1 includes a communication control unit 210, a control unit 220, an input / output unit 230, an input device 231, a time measuring unit 240, a moving image content storage unit 250, A storage unit 260, a playback unit 270, a monitor monitor device 272, and a bus 290 are included. The communication control unit 210, the control unit 220, the input / output unit 230, the time measuring unit 240, the moving image content storage unit 250, the storage unit 260, and the playback unit 270 are interconnected by a bus 290.

  The communication control unit 210 includes, for example, a communication device such as a NIC, and transmits and receives data to and from the server device 100 and other client devices 200 under the control of the control unit 220.

  The control unit 220 has, for example, a CPU, and controls each unit based on an operation program stored in the storage unit 260.

  The input / output unit 230 is configured by, for example, a USB (Universal Serial Bus). An input device 231 such as a keyboard and a mouse is connected to the input / output unit 230, and input information from the input device 231 is captured and supplied to the control unit 220. In addition, an output device such as a printer can be connected to the input / output unit 230, and data can be output to the output device according to a command from the control unit 220.

  The timekeeping unit 240 includes a counter and the like, and starts, changes, and ends timekeeping according to a command from the control unit 220 and notifies the control unit 220 of the measurement time.

  The moving image content storage unit 250 includes, for example, a hard disk device, and stores the lecture content downloaded from the server device 100 and the corresponding telop data in association with each other. Details thereof will be described later.

  The storage unit 260 includes, for example, a RAM serving as a work area and a hard disk device, and stores an operating system (OS) and application programs for controlling the operation of the control unit 220. The application program stored in the storage unit 260 includes, for example, a process of reproducing content and a telop synchronously, a process of searching for a telop when a keyword is received, and a timing for displaying the telop, When the designation is accepted, a program for executing a process of cueing content up to the timing is included.

  The reproduction unit 270 includes a display controller and an audio controller, displays an image on the display screen of the monitor device 272 under the control of the control unit 220, and emits sound from a speaker.

  The moving image content storage unit 250 includes a moving image content storage area 251 and a telop storage area 252 as shown in FIG.

  The video content storage area 251 stores the lecture content stored in the lecture content storage area 111 of the server apparatus 100 of FIG. 3 downloaded from the server apparatus 100.

  In the telop storage area 252, telop data corresponding to the lecture content stored in the lecture content storage area 111 is downloaded from the telop storage area 112 of FIG. 3 and stored.

  The data structures of the moving image content storage area 251 and the telop storage area 252 of the client apparatus 200 in FIG. 5 are basically the same as the data structures of the lecture content storage area 111 and the telop storage area 112 of the server apparatus 100 in FIG. .

  Each entry of the additional data table telop data table of FIG. 5 stores a display timing (period) 510 for displaying a content telop, a telop 520, a keyword 530, and a thumbnail 540. The roles of the data 510 to 540 of each entry are the same as the roles of the data 410 to 440 of each entry of the additional data table telop data table of FIG.

  Next, the operation of the remote lecture system 1 having the above configuration will be described by taking as an example a case where a student downloads lecture content from the server apparatus 100 to the client apparatus 200 and listens to the lecture.

  If a student wants to take a lecture and has not yet downloaded the lecture content, he / she operates the client device 200 to access the server device 100 and store the lecture content stored in the data storage unit 110. Select any of them and instruct its download.

  In response to the selection instruction from the input device 231, the control unit 220 instructs the communication control unit 210 to download the selected lecture content. The communication control unit 210 downloads the lecture content instructed from the client device 200, and stores the downloaded lecture content in the moving image content storage area 251 of FIG.

  Subsequently, the control unit 220 instructs the communication control unit 210 to download a telop data table corresponding to the selected lecture content. The communication control unit 210 downloads the telop data table instructed from the client device 200 and stores it in the telop storage area 252 of FIG.

When the download of the lecture content is completed by the above-described processing, or when the lecture content has been downloaded to the client device 200 in advance, the student operates the input device 231 to reproduce the video content. Instruct.
In response to this instruction, the control unit 220 starts the reproduction process shown in FIG.
First, the control unit 220 instructs the reproduction unit 270 to display the lecture content reproduction screen shown in FIG. 6 on the monitor device 272 (step S1), and then activates the timing unit 240 (step S2).

  The lecture content reproduction screen shown in FIG. 6 includes a moving image display area 501 for displaying moving images of the moving image content being reproduced, a telop display area 502 for displaying telops, and a keyword input area for inputting search keywords. 503, a keyword search button 504 for instructing keyword search, a time measurement display area 505 for displaying elapsed time, and a user interface 506 for performing reproduction / reverse reproduction, fast-forwarding, rewinding, and the like of moving image content.

  Subsequently, the control unit 220 reads out the video content selected from the video content storage area 251 in FIG. 5, decodes it, and transmits it to the playback unit 270 (step S3). The playback unit 270 displays the image of the supplied moving image content in the moving image display area 501 and emits sound from the speaker of the monitor device 272.

Subsequently, the control unit 220 acquires the time measured from the time measuring unit 240, that is, the elapsed time from the start of moving image content reproduction, and causes the reproducing unit 270 to display the time measured in the time measuring time display area 505 (step S4).
Further, the control unit 220 determines whether or not the display period 510 including the current elapsed time is registered in the telop data table stored in the telop storage area 252 corresponding to the moving image content currently being reproduced. A determination is made (step S5).

  If there is a match with the display period 510 including the current elapsed time (step S5; Yes), that is, if there is a telop within the display timing display period 510, the control unit 220 displays the display. The telop 520 associated with the period 510 is read from the telop data table (step S6) and transmitted to the playback unit 270. The playback unit 270 displays the telop 520 in the telop display area 502. By such an operation, the video, audio and telop of the lecture are displayed in synchronization (step S7).

  For example, if playback of “video content 1” is designated and the current timekeeping time of the timekeeping unit 240 is 0 hour 30 minutes 00 seconds, a lecture start is displayed in the video display area 501 of the screen shown in FIG. A 30-minute image is displayed (step S3), and the sound is emitted from the speaker. Also, a telop data table corresponding to “video content 1”? ? In the second entry in the column 551 of the display period 510, there is a period of “00:29:06 to 00:30:23”, and the current time of 0:30:30 is located within this period ( (Step S5; Yes) As a telop, "MPEG4 data structure ..." registered in the second entry in the telop 520 column is read (step S6) and displayed in the telop display area 502 (step S6). S7).

  Thereafter, the control unit 220 refers to the lecture content storage area 251 and determines whether data that has not been played back remains (step S8). If unreproduced data remains (step S8; No), the process returns to step S3 and continues to reproduce the content.

  When it is determined in step S8 that unreproduced data does not remain (step S8; No), the control unit 220 ends the content reproduction process.

  On the other hand, if it is determined in step S5 that there is no display period 510 including the current display timing elapsed time (step S5; Yes), that is, if it is determined that there is no telop to be displayed, step S6 is performed. S7 is skipped and the process proceeds to step S8 described above.

Here, the student can reproduce the moving image content from the timing when the noticed item is lectured by searching the telop.
When such a process is desired, the student inputs an arbitrary keyword or search expression into the keyword input area 503 using the input device 231 while the screen of FIG. 6 is displayed, and the keyword search button 504. Press.
The control unit 220 monitors whether or not the keyword search button 504 is pressed while the screen of FIG. 6 is displayed.

  When the control unit 220 detects that the search button 504 is pressed, the control unit 220 performs a keyword search interruption process shown in FIG.

  First, the control unit 220 acquires a keyword or a search expression input in the keyword input area 503 (step S101), and searches the keyword field 530 stored in the telop data table associated with the moving image content currently being reproduced. A search is made for a keyword that matches the input keyword (step S102).

If a keyword matching the input keyword can be searched in the telop column 520 of the telop data table corresponding to the video content being played back (step S102; Yes), a column for the display period 510 of the entry storing the searched keyword The start start (telop display start timing) of the display period stored in is acquired (step S103).
Here, in order to facilitate understanding, when a plurality of matching keywords are searched, the head (the earliest start of the corresponding display timing display period) is selected.

  Subsequently, the control unit 220 cues the content until the start of the display timing display period acquired in step S103 (step S104), and changes the time measured by the time measuring unit 240 to the start of the acquired display timing display period. (Step S105).

  Subsequently, the processing from step S3 in FIG. 7 is started (step S106). That is, the lecture image, telop and sound are reproduced from the beginning of the display timing display period acquired in step S103.

  Taking FIG. 5 as an example, if the content being played back is “video content 1” and the input keyword is “MPEG”, “MPEG” is the keyword 530 in the telop data table 551 for “video content 1”. Present in the first and second entries of the column (not present in the second entry?). Therefore, it is determined Yes in step S102.

  In this case, since a plurality of keywords are searched, the control unit 220 identifies the first entry with an earlier display period. Then, 00:15:21 which is the start timing start timing of “00:15:21 to 00:16:00” that is the display period (0 hour, 15 minutes, 21 seconds have elapsed after the start of the reproduction of “video content 1”) is taken out. (Step S103).

  The control unit 220 cues the portion of 00:15:21 after the start of “lecture content 1” (step S104). That is, the content read position is set to 00:15:21.

  Further, 00:15:21 is set in the timer unit 240 (step S105). Subsequently, the moving image and the sound are reproduced from this position, and the corresponding “using MPEG4...” Is extracted and displayed as a telop, and then the reproduction is continued (step S106).

  After step S105 is completed, the control unit 220 starts the content reproduction process currently being performed from step S3 (step S106), and ends the keyword search interruption process. By causing the content reproduction processing to be performed from step S3, the content cued up to the timing at which the telop is displayed is reproduced in the moving image display area 501 in FIG. 6, and the telop is displayed in the telop display area 502. Is done.

  If the input keyword cannot be searched from the telop display area 520 (step S102; No), the control unit 220 does nothing and ends the keyword search interruption process. A message such as the number of hits 0 may be displayed.

  As described above, the remote lecture system 1 can display the telop stored in association with the moving image content in synchronization with the moving image content.

  In addition, telops containing arbitrary keywords can be detected, content can be played back from the position synchronized with the telops, and the timing at which the item of interest is lectured can be selected / extracted for attendance / reference Can do.

In the remote lecture system 1 configured as described above, when a plurality of keywords matching the input keyword are searched, the moving image content is reproduced from the position corresponding to the earliest keyword, but the moving image content is reproduced from any position. Is optional.
It is also possible for the student to select the playback position.

  Hereinafter, the remote lecture system 1 in which the student selects the reproduction position will be described. The configuration and basic operation of the remote lecture system in this case are the same as those described above, and a characteristic keyword search process will be described below.

  Here, the processing from when the student operates the client device 200 and selects the content until the client device 200 finishes reproducing the content is the same as the processing shown in FIG.

  While the screen of FIG. 6 is displayed, the control unit 220 determines whether or not the keyword search button 504 has been pressed. The student inputs an arbitrary keyword into the keyword input area 503 and presses the keyword search button 504.

  When detecting that the keyword search button 504 has been pressed, the control unit 220 performs keyword search interrupt processing shown in FIG.

  First, the control unit 220 acquires the data input in the keyword input area 503 (step S201), searches the keyword field 530 of the telop data table associated with the currently reproduced video content, and matches the input keyword. The one to be searched is searched (step S202).

  If a keyword matching the input keyword can be searched (step S202; Yes), the control unit 220 reads the display period, telop, and thumbnail corresponding to the searched keyword, stores them in association with the storage unit 260, and stores them. To do.

  Next, the control unit 220 creates and displays a search result display screen using the stored information (step S203).

As illustrated in FIG. 10, the search result display screen includes a set 614 and 615 including a thumbnail 611 corresponding to the searched keyword, a start timing 612 of the display period of the corresponding telop, and a corresponding telop 613. . . . Is included as a selection item. A cursor 600 for selecting one of the selection items is also displayed. The keyword used for the search is displayed at the top of the screen.
The student operates the input device 231 to move the cursor and select a desired selection item. At this time, the thumbnail 611 and the telop 613 can be referred to.

  Here, when the student selects an arbitrary selection item with the cursor 600 and clicks the OK button 630, the control unit 220 detects this (step S204; Yes), and the student selects which search result. It is determined whether or not (step S206), and the display timing display period is determined (step S207). The control unit 220 cues the moving image content until the start of the determined display timing display period (step S208), and sets the determined start time of the display timing display period in the time measuring unit 240 (step S209).

  Subsequently, the control unit 220 starts the reproduction processing of the moving image content from step S3 in FIG. 7 (step S210). That is, the moving image content, telop, and audio are reproduced from the beginning of the selected display timing display period.

  In step S202, when the input keyword cannot be searched from the telop 520 (step S202; No), the control unit 220 does nothing and ends the keyword search interruption process.

  When the cancel button 640 is pressed (step S204; No, step S205; Yes), the control unit 220 jumps to step S210. That is, the reproduction of the immediately preceding moving image content is continued.

  Taking FIG. 5 as an example, if the content being played back is “video content 1” and the input keyword is “MPEG”, “MPEG” is the keyword 530 in the telop data table 551 for “video content 1”. Present in the first and second entries of the column (not present in the second entry?). Therefore, it is determined Yes in step S202.

  The control unit 220 uses 00:15:21 which is the start timing start time of the display period “00:15:21 to 00:16:00” from the first entry and the second entry, and uses the telop “MPEG3 MPEG4. ”And a still image thumbnail 611. Also, from the second entry, 00:29:06, which is the start timing start timing of the display period “00:29:06 to 00:30:23”, the telop “MPEG3 MPEG4 data structure...”, And the moving image thumbnail 611 Take out.

  As shown in FIG. 10, the control unit 220 selects the start timing “00:15:21” of the display timing display period, the telop “using MPEG3 MPEG4...”, And the still image thumbnail 611 as one selection item 614. The search result display screen is generated and displayed with the start timing “00:29:06” of the display timing display period, the telop “MPEG3MPEG4 data structure...”, And the moving image thumbnail 611 as one selection item 615. (Step S203). Note that the thumbnail 611 of the selection item 615 is a moving image, and the moving image is displayed.

  Here, for example, if the student selects the selection item 615 with the cursor 600 and clicks the OK button 630 (step S204; Yes), the control unit 220 identifies the selected selection item 615 ( In step S206, the start start (telop display start timing) of the display period stored in the display period 510 column of the selected selection item 615 is acquired (step S207). The position of 29 minutes 06 seconds after the start of reproduction of “video content 1” is cued (step S208), the time measurement is set (step S209), and reproduction is performed thereafter (step S210). As a result, “video content 1” is displayed and reproduced in the video display area 501 from the position 29 minutes 06 seconds after the start of reproduction, and a telop “MPEG3 MPEG4 data structure...” Is reproduced in the telop display area 502. Playback continues.

  As described above, the remote lecture system 1 can display the telop stored in association with the moving image content in synchronization with the moving image content.

  In addition, the student can search for the timing at which the content or item of interest is lectured by using the keyword, and further select and play it back.

  The present invention is not limited to the above embodiment, and various modifications and applications are possible.

  In the above embodiment, an example in which the client device 200 stores and saves content, telops, and the like downloaded from the server device 100 has been described. However, for example, content, telops, and the like are stored in the client device 200 from a recording medium such as a CD-ROM. May be stored and saved. That is, the client device 200 may be operated stand-alone.

  In the above embodiment, the example in which the client device 200 stores and saves the content, telop, and the like downloaded has been described. However, the server device 100 may stream the content, telop, etc. to the client device 200.

  In this case, the keyword search may be performed by the server device 100. For example, the client device 200 passes the search target keyword to the server device 100, and the control unit 130 of the server device 100 in FIG. 2 executes the search program stored in the storage unit 120, thereby adding the additional data in FIG. The keyword is searched from the telop 420 in the table, and if the keyword can be searched, the content starting from the telop 420 and the display timing display period (period) 410 corresponding to the telop is transmitted to the client device 200 via the communication control unit 150. May be taken.

  The interfaces shown in FIGS. 6 and 10 are merely examples, and the screen configuration is arbitrary, and other functions may be added.

  The client device 200 is arbitrary as long as it can reproduce a moving image. For example, a personal computer, a mobile phone, or a PDA (Personal Digital Assistance) may be used.

  Further, if the content includes a moving image, the format and content are arbitrary. For example, MPEG (Moving Picture Experts Group) -2, MPEG-4 video, 3GPP / 3GPP2 (3rd Generation Partnership Project / 3rd Generation Partnership Project 2) compatible video, Motion-JPEG (Joint Photographic Experts Group) video and audio , Text, or a fusion of these.

  The timer 240 may measure the time itself from the start of content playback, or may count the time substantially by counting the number of frames of video playback.

  In the above embodiment, a keyword that matches the keyword input by the student is searched from the keyword 530 field of the telop data table. However, the keyword 530 field is not provided, and the telop registered in the telop 520 field. May be full-text searched.

  In the above embodiment, the telop 520 may be described in HTML (Hypertext Markup Language). Since HTML can define a link to the outside for an arbitrary text or the like, for example, if a telop is described in HTML and the telop display area 502 in FIG. 6 has a WWW (World Wide Web) browser function, , It becomes possible to create an external link to an arbitrary keyword in the telop. If the student clicks on the keyword, information on the link destination can be browsed.

  In the above-described embodiment, the thumbnail 440 in FIG. 3 is an additional data table created separately in advance, such as the display timing (period) 410, the telop 420, and the keyword 430 when content is registered in the server device 100. However, the timing for creating and registering the thumbnail 440 is arbitrary.

  For example, when content is registered in the server apparatus 100, the display timing (period) 410, the display data (telop) 420, and the keyword 430 are registered in each telop data table of the telop storage area 112 in FIG. Is not registered, and a still image / moving image capturing device (not shown) is attached to the bus 160 of the server device 100 of FIG. 2 in advance. Subsequently, the control unit 130 of the server apparatus 100 reproduces the content, and the control unit 130 designates the start timing of the display timing display period registered in the telop data table corresponding to the content by a timing unit (not shown). If it is known, the moving image data of the content is transmitted to the capture device via the bus 160, and the capture device creates still image data or moving image data. The control unit 130 temporarily stores still image or moving image data created by the capture device in the storage unit 120 and registers the data as a thumbnail 440 associated with the display timing (period) 410 of the telop data table. By adopting such a configuration, it is possible to reduce labor for creating thumbnails.

  For example, when the client device 200 downloads content, the display timing display period 510, the telop 520, and the keyword 530 of each content telop data table in FIG. 5 are registered, but the thumbnail 540 is not registered. Consider a case where a capture device (not shown) is attached to the bus 290 in advance in the client device 200. In this case, the control unit 220 of the client device 200 can create and register the thumbnail 540 by the same method as described above in which the control unit 130 of the server device 100 creates the thumbnail 440.

  The data in the telop data table of FIG. 3 or 5 may be arbitrarily changed using a known text editing program or the like.

  The content reproduction system, the server device, and the client device according to the present invention can be realized using a normal computer system without using a dedicated system. For example, by storing a program for executing the above-described operation on a computer-readable recording medium (flexible disk, CD-ROM, DVD-ROM, etc.) and installing the program on the computer, You may comprise the server apparatus and client apparatus which perform the above-mentioned process. Further, the server device and the client device may be configured by storing the program in a storage included in a server device on a communication network such as the Internet and downloading it by a normal computer system.

  Further, when the above-described function is realized by sharing of the OS and the application or by cooperation between the OS and the application, only the application part may be stored in a recording medium or storage.

  It is also possible to superimpose a program on a carrier wave and distribute it via a communication network.

1 is an overall view of a remote lecture system. It is a block diagram which shows the structure of a server apparatus. It is a figure which shows the structural example of the data memorize | stored in the data storage part of a server apparatus. It is a block diagram which shows the structure of a client apparatus. It is a figure which shows the structural example of the data memorize | stored in the moving image content memory | storage part of a client apparatus. It is a figure which shows an example of the work screen which reproduces | regenerates a content and performs a keyword search. It is a flowchart for demonstrating the reproduction | regeneration processing which displays a telop while reproducing | regenerating a content. FIG. 10 is a flowchart for explaining an interrupt process for searching for a telop keyword and starting reproduction from a place where a telop including the keyword is displayed. FIG. FIG. 10 is a flowchart for explaining an interrupt process for searching for a telop keyword and selecting a telop including the keyword to start the reproduction of content from the place where the telop is displayed. It is a figure which shows an example of the search result display screen for displaying a thumbnail, reproduction time, and a telop, and determining from which timing content is reproduced.

Explanation of symbols

1 Remote lecture system 100 Server device 110 Data storage unit 120 Storage unit 130 Control unit 150 Communication control unit 160 Bus 200 Client device 210 Communication control unit 220 Control unit 230 Input / output unit 231 Input device 240 Timekeeping unit 250 Video content storage unit 260 Storage Unit 270 reproducing unit 272 monitor device 290 bus C communication network

Claims (5)

Storage means for storing content that is continuously played back and a plurality of accompanying information associated with a plurality of positions of the content in association with each other;
Search information input means for receiving input of search information;
Search means for searching the accompanying information stored in the storage means using the search information input by the search information input means, and detecting the accompanying information corresponding to the search information;
Playback means for starting playback of the content from a position associated with the accompanying information detected by the search means;
A content reproduction system comprising: Accompanying information display means for displaying the detected accompanying information when a plurality of the accompanying information is detected by the search means;
Accompanying information selection means for selecting one of a plurality of accompanying information displayed by the accompanying information display means;
Further comprising
The reproduction means starts reproduction of the content from a position associated with the accompanying information selected by the accompanying information selection means;
The content reproduction system according to claim 1, wherein: The storage means further stores image data in association with the accompanying information,
When the search means detects a plurality of the accompanying information, accompanying information image display means for displaying image data associated with the detected accompanying information and selection of an image to be displayed by the accompanying information image display means are selected. And an accompanying information image selection means for receiving,
The reproduction means starts reproduction of the content from a position associated with the accompanying information associated with the image data selected by the accompanying information image selection means.
The content reproduction system according to claim 1, wherein: A storage step of associating and storing continuously reproduced content and a plurality of accompanying information associated with a plurality of predetermined positions of the content;
A search information input step for receiving input of search information;
Using the search information input in the search information input step, search for the accompanying information stored in the storing step, and detecting the accompanying information that matches the search information;
A reproduction step for starting reproduction of the content from a position associated with the accompanying information when matching accompanying information is detected by the search step;
A content reproduction method comprising: On the computer,
A storage process for storing content that is continuously played back and a plurality of accompanying information associated with a plurality of predetermined positions of the content in association with each other;
Search information input process that accepts input of search information,
A search process for searching incidental information stored by executing the storage process using the search information input by executing the search information input process, and detecting incidental information matching the search information;
A reproduction process for starting reproduction of the content from a position associated with the incidental information when matching incidental information is detected by execution of the search process;
A content reproduction program characterized in that

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