JP2013223086A - Information synchronizing apparatus, recording medium and information synchronizing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information synchronizing apparatus 10 which synchronously plays contents and recorded information while utilizing the contents as they are.SOLUTION: An information synchronizing apparatus 10 comprises a recorded information acquiring section 11 which acquires recorded information, a synchronization information generating section 12 which generates synchronization information, and a recording section 17 which records the synchronization information on a recording medium 100 independently of contents.

Description

  The present invention relates to an information synchronization apparatus, a recording medium, and a recording medium that synchronizes and reproduces content and recorded information including at least one of video and audio indicating the state of the scene where the content is displayed on the display device, while using the content as it is, The present invention relates to an information synchronization method.

  2. Description of the Related Art Conventionally, a system has been proposed in which a plurality of student terminals and instructor terminals are connected through a network and a lesson using contents such as lesson digital teaching materials is performed. In such a system, it is desired to reproduce the class by providing video and audio during the class to students who are absent from the class or to students in remote areas, and to improve the student's understanding of the class contents (contents). Strong demand. In addition, there is a demand to improve visibility by synchronizing the playback of the content used when playing video and audio during the class, rather than watching the content reflected in the camera video during the class. . Such techniques are disclosed in Patent Documents 1 and 2.

  In the information synchronization apparatus of Patent Document 1, a computer outputs presentation information from a display unit, converts output time information into display information, outputs the information together with the presentation information, acquires operation contents as meta information, and provides presentation information. Is stored in the memory in association with the output time information and the meta information. The computer captures the recording information obtained by recording the presentation status with the video device, analyzes the output time display information recorded in the recorded information, obtains the output time of the presentation information, and outputs the output time of the presentation information in the memory. And the output time of recorded information are synchronized.

  The recording / reproducing apparatus of Patent Literature 2 can be connected to a display device, a terminal for a lecturer, audio data, video data, and a related device that acquires coordinates of a display screen of the display device. The recording / reproducing apparatus includes a storage device that stores various data, a counter unit that outputs time data, a remote operation device, and a control device. The control device stores the source video data displayed on the display device in the storage device together with the time data output from the counter unit, and the data acquired by the related devices based on the preset operation settings of the related devices. Are stored in the storage device together with the time data output from the counter unit, and the source video data and the data are reproduced in synchronization with the time data based on the reproduction operation of the remote control device.

JP 2010-199760 A (published September 9, 2010) JP 2011-77748 A (published April 14, 2011)

  However, the information synchronization apparatus of Patent Document 1 and the recording / reproducing apparatus of Patent Document 2 have the following problems.

  Specifically, in the information synchronization apparatus of Patent Document 1 and the recording / reproduction apparatus of Patent Document 2, in order to reproduce content and related data such as video and audio during a class in synchronization, the content information is combined with time information. It is necessary to record again as a video file. Further, when the content is corrected after recording the video or the like, only a part or all of the content can be deleted, and it is difficult to add or replace the content.

  The present invention has been made in order to solve the above-described problem, and its purpose is to include content and recorded information including at least one of video and audio indicating the situation of the site where the content is displayed on the display device. Another object of the present invention is to provide an information synchronization apparatus, a recording medium, and an information synchronization method that can be synchronized and reproduced while using content as it is.

  In order to solve the above-described problem, the information synchronization apparatus according to the present invention acquires recording information including at least one of video and audio indicating the situation of the site where the content is displayed on the display device, Synchronization information generating means for generating synchronization information for synchronizing and reproducing the recording information acquired by the recording information acquisition means and the content, synchronization information generated by the synchronization information generating means, and the content And recording means for recording on a recording medium independently.

  In order to solve the above-described problem, the information synchronization method according to the present invention acquires a recording information acquisition step of acquiring recording information including at least one of video and audio indicating the situation of the site where the content is displayed on the display device; The synchronization information generation step for generating the synchronization information for synchronizing and reproducing the recording information acquired in the recording information acquisition step and the content, and the synchronization information generated in the synchronization information generation step, And a recording step of recording on a recording medium independently of the content.

  According to the above configuration, in the information synchronization apparatus according to the present invention, the synchronization information is recorded independently of the content, and new information in which the synchronization information is incorporated into the content and the recorded information is generated. Not recorded. Therefore, when the content and the recorded information are synchronized, the content is used as it is.

  Therefore, the information synchronization apparatus (method) according to the present invention can perform operations such as addition and replacement of content, which was difficult with the conventional technique that required synchronization information to be incorporated into content. Furthermore, since the information synchronization apparatus (method) according to the present invention has the above-described configuration, the content can be appropriately updated to the latest information. Compared with this, convenience can be improved.

  In order to solve the above problems, the recording medium according to the present invention is a recording medium, and includes a reproduction-only area and a recordable area, and at least one of the reproduction-only area and the recordable area includes: Content to be displayed on the display device is recorded, and in the recordable area, the recorded information indicating at least one of video and audio of the situation on the site where the content is displayed on the display device is synchronized with the content. The synchronization information for playback is recorded independently of the content.

  According to the above configuration, by using the recording medium, the content and the recorded information including at least one of video and audio indicating the situation of the site where the content is displayed on the display device are used as they are. Synchronized playback is possible. This makes it possible to perform operations such as adding and replacing content, which was difficult with the conventional technology that required synchronization information to be incorporated into content.

  Furthermore, the recording medium on which the content and the recorded information are recorded can be distributed at low cost and in large quantities. In addition, since the content and the recorded information can be carried via a recording medium, the convenience of handling can be improved.

  In the information synchronization device according to the present invention, the recorded information acquired by the recorded information acquisition means further includes pointer information indicated by a pointer on the display screen of the display device and input information input to the display screen. A configuration including at least one of the above may be possible.

  For example, when the content is a presentation material or the like, the lecturer may explain the content of the content displayed on the display device using a pointer. When the display screen is a touch panel type and input information such as characters and symbols can be input, an instructor may input a comment or the like on the display screen in order to explain the content.

  Therefore, the information synchronization apparatus according to the present invention has the above-described configuration, so that when the content and the recorded information are synchronized, the pointer and input information can be synchronized with the content. You can deepen your understanding of the content.

  In the information synchronization apparatus according to the present invention, the recording medium has a reproduction-only area and a recordable area, and the content is recorded in at least one of the reproduction-only area and the recordable area, The recording means may be configured to record the recorded information and the synchronization information in the recordable area of the recording medium.

  According to the above configuration, the recording medium on which the content and the recorded information are recorded can be distributed at low cost and in large quantities. Furthermore, since the content and the recorded information can be carried via a recording medium, the handling convenience and portability can be improved.

  The information synchronization apparatus according to the present invention may further include a changing unit that changes at least one of the content and the recorded information.

  By providing the above-described configuration, the changing means can change at least one of the content and the recorded information afterwards, whereby the information to be changed can always be kept up-to-date. It becomes.

  The information synchronization apparatus according to the present invention further includes a time measuring unit that measures time, and the synchronization information includes time information measured by the time measuring unit, and the synchronization information includes the content and the recorded information. The playback timing may be defined based on the time information.

  According to the above configuration, since the playback timing of the content and the recorded information is defined based on the time information, the playback timing of the content and the recorded information can be accurately synchronized.

  The information synchronization apparatus according to the present invention may further include a changing unit that changes at least one of the content, the recorded information, and the time information.

  By providing the above configuration, the changing means can change at least one of the content, the recorded information, and the time information afterwards, whereby the information to be changed is always up-to-date. Can be maintained.

  The information synchronization apparatus according to the present invention may further include a first synchronized playback unit that plays back the content and the recorded information in synchronization based on the synchronization information.

  According to said structure, since the condition of the field when a content is displayed on a display apparatus is reproduced easily, the user's understanding with respect to the said content can further be raised.

  A configuration may further include second synchronous reproduction means for reproducing at least one of the pointer information and the input information included in the recorded information on the content based on the synchronization information.

  According to said structure, a 2nd synchronous reproduction | regeneration means superimposes and reproduce | regenerates at least one of the said pointer information and the said input information which could be actually confirmed if it exists in the field. Thus, when the audience (students) absent from the class due to illness, for example, plays the content, the second synchronized playback means causes the audience to confirm at least one of the pointer information and the input information overlapping the content. Can deepen the audience's understanding of the content.

  The information synchronization apparatus according to the present invention further includes an input unit that receives an instruction to select desired recording information from the plurality of recording information when there are a plurality of the recording information to be synchronized with the content. There may be.

  According to the above configuration, desired recording information is selected from the plurality of recording information based on a user instruction received by the input unit, and as a result, the recording information desired by the user is synchronized with the content. As a result, for example, when the on-site situation is recorded with multiple images, the display screen of the display device and the state of the audience can be confirmed from multiple angles, and the content can be understood through on-site realism. It can be further deepened.

The information synchronization apparatus according to the present invention is as described above.
Recording information acquisition means for acquiring recording information including at least one of video and audio indicating the situation of the site where the content is displayed on the display device;
Synchronization information generating means for generating synchronization information for synchronizing and reproducing the recorded information acquired by the recorded information acquiring means and the content;
And a recording unit that records the synchronization information generated by the synchronization information generating unit on a recording medium independently of the content.

The information synchronization method according to the present invention is as described above.
A recording information acquisition step for acquiring recording information including at least one of video and audio indicating the situation of the site where the content is displayed on the display device;
A synchronization information generating step for generating synchronization information for synchronizing and reproducing the recording information acquired in the recording information acquisition step;
A recording step of recording the synchronization information generated in the synchronization information generation step on a recording medium independently of the content.

The recording medium according to the present invention is as described above.
It has a playback-only area and a recordable area,
Content displayed on the display device is recorded in at least one of the read-only area and the recordable area,
In the recordable area, the recording information indicating at least one of the video and audio in the situation where the content is displayed on the display device and the synchronization information for reproducing the content in synchronization with the content The configuration is recorded independently.

  Therefore, an information synchronizer, a recording medium, and a content that can be synchronized and reproduced while using the content as it is, and recorded information including video or audio indicating the situation of the site where the content is displayed on the display device, and An information synchronization method can be provided.

It is a block diagram of the information synchronizer which concerns on this Embodiment. 1 is a schematic diagram of a synchronized playback system according to the present embodiment. It is a figure for demonstrating an example of synchronous information. It is a figure for demonstrating an example by which a table is changed. It is a figure for demonstrating schematic structure of each recording layer of a recording medium.

  Hereinafter, the information synchronization apparatus 10 and the like according to the present embodiment will be described with reference to the drawings. In the following description, the same parts and components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[Basic configuration of the synchronized playback system 1]
Hereinafter, the synchronized playback system 1 according to the present embodiment will be described with reference to FIG. FIG. 2 is a schematic diagram of the synchronized playback system 1.

  The synchronized playback system 1 includes an information synchronization apparatus 10, a remote controller 50 that can remotely operate the information synchronization apparatus 10, a monitor unit 30 that displays content such as presentation materials, and a lecturer terminal (personal computer) operated by the lecturer 2. 31, a microphone part (recording information acquisition means) 32 for recording the voices of the lecturer 2 and the audience 3, a pointer 33 used by the lecturer 2, and a detection camera part (recording information acquisition) for detecting coordinates indicated by the pointer 33 Means) 41, a speaker unit 34 that emits sound of content, lecturer 2, and the like, and an imaging unit (such as content, lecturer 2, audience 3, classroom scenery) where the content is displayed on the monitor unit 30 Recording information acquisition means) 35.

  The information synchronizer 10 includes a broadcast tuner (not shown) such as digital broadcast or BS broadcast, and can acquire broadcast content. Further, it is possible to connect to various sites via the Internet 4 and acquire contents provided by these sites. In addition, presentation materials used in classes, class scenes, etc. can be distributed over the Internet for audiences who have not attended classes, audiences located in remote locations, sick audiences, and the like.

  The information synchronizer 10 stores acquired information in a recording medium such as a large-capacity internal storage unit (not shown) or an external recording medium unit such as a DVD or a BD (Blu-Ray; registered trademark), and also stores the acquired information in the recording medium. Information can be changed (edited). The operation of the information synchronization apparatus 10 can be instructed via the remote controller 50 or the instructor terminal 31.

  In the present embodiment, various contents can be displayed on the monitor unit 30 connected to the information synchronization apparatus 10. In the present embodiment, various contents can be projected on the screen 5 via the projector 40 integrated with the detection camera unit 41 instead of the monitor unit 30.

  The instructor terminal 31 can be configured by a general personal computer. The instructor terminal 31 can advance the presentation while monitoring content on a display unit (not shown) via an input device such as a mouse (not shown). Further, in the present embodiment, information (content) acquired by the information synchronization apparatus 10 can be displayed on the monitor unit 30. In addition, content can be acquired from an external recording medium (not shown) provided in the instructor terminal 31 and displayed on the monitor unit 30.

  In the present embodiment, a plurality of microphone units 32 such as a first microphone unit 32a for acquiring the voice of the lecturer 2 and a second microphone unit 32b for receiving audience reaction or question and answer are connected to the information synchronization apparatus 10. Can do. The sound acquired by these microphone units 32 can be amplified by the speaker unit 34. Further, the imaging unit 35 can also use a plurality of imaging units 35 such as a camera that shoots the lecturer 2 and a camera that shoots the audience 3, and the one or more imaging units 35 are connected to the information synchronization apparatus 10. can do. The audio (audio data) recorded by the microphone unit 32 and the video (video data) captured by the imaging unit 35 are transmitted to the information synchronization apparatus 10.

  In the present embodiment, a pointer 33 using an infrared laser can be used. The coordinates indicated by the pointer 33 are detected by the detection camera unit 41 having an infrared filter, and the position coordinates are recorded on the recording medium via the information synchronizer 10. The position of the pointer is specified from the position coordinates.

  The monitor unit 30 may include a touch panel 37. On the touch panel 37, a preset instruction operation embedded in the display screen can be performed, and the touched position coordinates are recorded on the recording medium via the information synchronization device 10. The position touched on the touch panel 37 and the input information input to the touch panel 37 (hereinafter also referred to as board writing information) are specified from the position coordinates.

  Note that the position coordinates specified by the pointer 33 and the method for specifying the position coordinates specified on the touch panel may be performed by a conventional method, and thus description thereof is omitted here.

  Further, in the synchronized playback system 1 according to the present embodiment, the monitor unit 30 and the screen 5 are installed in front of the audience 3, the projector 40 is installed behind the audience 3, and the lecturer 2 standing on the podium is the lecturer terminal. The presentation can be performed while referring to the contents displayed on the large monitor unit 30 and the screen 5 while operating the machine 31 and the pointer 33.

[About the information synchronization apparatus 10]
Next, the information synchronization apparatus 10 will be described with reference to FIG. FIG. 1 is a configuration diagram of the information synchronization apparatus 10.

[Outline of Information Synchronizing Device 10]
For easy understanding, an outline of the operation of the information synchronization apparatus 10 will be described first.

  First, the recording information acquisition unit 11 such as the microphone unit 32 and the imaging unit 35 receives recording information including at least one of video and audio indicating the situation of the site where content such as presentation materials is displayed on the monitor unit 30 or the screen 5. get. Then, the synchronization information generation unit (synchronization information generation means) 12 uses the time when the recording information is generated and the time when the content is displayed as the synchronization information for reproducing the recording information and the content in synchronization. Generate. Note that these times are measured by a timer unit (timer means) 13. Then, the recording unit (recording unit) 17 records the synchronization information generated by the synchronization information generating unit 12 on the recording medium 100 independently of the content. Instead of the recording medium 100, a recording medium (not shown) built in the information synchronization apparatus 10 may be used. The recorded information may also be recorded independently of the synchronization information, and the synchronization information can be edited more easily.

  According to the above configuration, since the synchronization information is recorded independently of the content, it is not necessary to newly generate new information in which the synchronization information is incorporated into a part of the content. Therefore, the content can be used as it is in synchronizing the content with the recorded information.

  As a result, the information synchronization apparatus 10 can perform operations such as addition and replacement of content, which was difficult with the conventional technique that required synchronization information to be incorporated into content. And since the information synchronizer 10 can update a content to the newest information suitably, the convenience can be improved significantly compared with the conventional information synchronizer which was not able to update a content to the newest information.

  The video and / or audio to be reproduced synchronously may be distributed to an audience who has not attended the class, an audience located in a remote place, a sickened audience, etc., and displayed (output) at the distribution destination.

[Basic configuration of information synchronizer 10]
Hereinafter, the configuration of the information synchronization apparatus 10 will be described with reference to FIG. FIG. 1 is a configuration diagram of the information synchronization apparatus 10. Note that the description of the contents described with reference to FIG. 2 is omitted.

  As shown in the figure, the information synchronization apparatus 10 includes a recorded information acquisition unit 11, a synchronization information generation unit 12, a timing unit 13, a monitor 14, an input unit (input unit) 15, an information change unit (change unit) 16, and a recording unit 17. A synchronous reproduction unit 18 and a communication unit 19.

  The recorded information acquisition unit 11 includes a microphone unit 32, an imaging unit 35, and a detection camera unit 41, and video and / or audio indicating the situation of the site where contents such as presentation materials are displayed on the monitor unit 30 or the screen 5. Recording information including is acquired. Then, the recording information acquisition unit 11 outputs the acquired recording information to the synchronization information generation unit 12. Note that there may be a plurality of microphone units 32, imaging units 35, and the like, and in this case, recorded information is output from the plurality of microphone units 32, imaging units 35, etc. to the synchronization information generating unit 12. Moreover, the structure which does not have the imaging part 35 may be sufficient, and the reproduction | regeneration of a class can be performed by synchronizing with content, such as a presentation document, by recording only audio | voice as information which shows the condition of the field. With a simpler configuration, the storage capacity of recorded information can be reduced.

  The synchronization information generation unit 12 acquires the recording information and the time information when the recording information has changed from the recording information acquisition unit 11 together. In addition, the synchronization information generation unit 12 changes the time and page when the content slide number of the content being played is changed from the instructor terminal (personal computer) 31 (not shown) operated by the instructor 2. The time information corresponding to the change of the content displayed on the monitor unit 35 such as the time when the image is received is acquired. In addition, the synchronization information generation unit 12 acquires time (time) information from the time measuring unit 13 that measures time.

  Then, the synchronization information generation unit 12 generates synchronization information for reproducing the recording information and the content in synchronization using the time when the recording information is generated and the time when the content is displayed. This will be described with reference to FIG. FIG. 3 is a diagram for explaining an example of the synchronization information.

  In FIG. 3, content slide number 51, video selection number 61, pointer coordinate data 71, and board writing data 81 are defined corresponding to time 0:00. Similarly, a content slide number 52, a video selection number 61, pointer coordinate data 72, and board writing data 82 are defined corresponding to the time 0:00. Corresponding to time 0:00, content slide number 52, video selection number 61, pointer coordinate data 72, and board writing data 83 are defined. Corresponding to time 0:07:30, a content slide number 53, a video selection number 61, pointer coordinate data 73, and board writing data 84 are defined.

  Therefore, when focusing on the time 0:00, it is indicated that the time 0:01:00 corresponds to the time when the content slide number has changed from 51 to 52. At time 0:01:00, the video captured by the imaging unit 35 is the video indicated by the video selection number 61, the pointer information is the pointer coordinate data 72, and the board writing information is the board writing data 82. Is shown.

  That is, by taking in the time 0:00 when the content slide number has changed from 51 to 52, the video selection number 61, the pointer coordinate data 72, and the board writing data 82 are extracted corresponding to the time. As a result, the content (content slide number) and the recorded information (video selection number, pointer information, board writing information) can be reproduced in synchronization with time 0:00 as the axis. As described above, the synchronization information generating unit 12 converts the synchronization information for reproducing the content (content slide number) and the recording information (video selection number, pointer information, board writing information) into the content and the recording information. Generate in association. The same applies to the times 0:00, 00:00, 07:00:30 in FIG. In addition, this is another time not shown in FIG. 3, and if there is a change in the content, video selection number, pointer information, and board writing information, the synchronization information corresponding to that time Is generated by the synchronization information generator 12.

  In FIG. 3, the time is indicated by 0:00 or the like. This is defined, for example, as follows. That is, the display start time of the content slide 51 is set as the reference time (0:00:00), and the recording information time corresponding to the display start time of the content slide 51 is set in accordance with the reference time. In addition, the synchronization information generation unit 12 generates synchronization information in association with content (content slide number) and recording information (in the example of FIG. 3, video selection number, pointer information, and board writing information).

  The synchronization information may be generated using time information such as January 1, 2012, 1:11:11. Further, the time information, the content information, and the recording information may be associated in a table format as shown in FIG. 3, or may be associated in another format. Further, the synchronization information generation unit 12 may generate the synchronization information and generate a table in which the time information, the content information, and the recording information are associated as shown in FIG.

  Here, the content slide number in FIG. 3 may be considered to correspond to each slide number when presentation software such as PowerPoint is used as presentation material, for example. Alternatively, the content slide number may simply correspond to the page number of the content.

  For example, when there are a plurality of imaging units 35, the video selection number is assigned to a video captured by each imaging unit 35. In the example of FIG. 3, numbers 51 and 52 are assigned. However, these numbers may be determined as appropriate so that each video can be distinguished.

  The pointer information is acquired from the detection camera unit 41 that detects the coordinates indicated by the pointer 33 used by the lecturer 2, and is defined as pointer coordinate data. In the example of FIG. 3, point coordinate data 71 to 73 are defined.

  When the instructor 2 enters characters or comments on the touch panel 37, the information input to the touch panel 37 is output to the synchronous information generating unit 12, and the output information becomes the board writing information. In the example of FIG. 3, the board writing information is defined by board writing data 81 to 84.

  As described above, the synchronization information generating unit 12 generates synchronization information for reproducing the recording information and the content in synchronization using the time when the recording information is generated and the time when the content is displayed. Note that the recording information is not limited to the items described in FIG. 3. For example, the recording information may include sound (audio data) acquired by the microphone unit 32.

  Next, the basic configuration of the information synchronization apparatus 10 will be described.

  The monitor 14 displays the synchronization information generated by the synchronization information generation unit 12 (may be in the form of the table in FIG. 3). The monitor 14 may be composed of a liquid crystal, a touch panel or the like, and the type thereof is not particularly limited.

  The input unit 15 is used to input information after the change when the user who has confirmed the table displayed on the monitor 14 wants to change the contents of the table. The input unit 15 may be incorporated in the information synchronization apparatus 10 or may be configured to be operable with a mouse, a remote controller, a keyboard, or the like. Information input to the input unit 15 is transmitted to the information change unit 16.

  Here, when there are a plurality of microphone units 32 and imaging units 35 and there are a plurality of recording information to be synchronized with the content, the input unit 15 receives an instruction from the user to select desired recording information from the plurality of recording information. You can also.

  The information changing unit 16 changes the contents of the table according to the information acquired from the input unit 15. An example of this will be described with reference to FIG. FIG. 4 is a diagram for explaining an example in which the table is changed.

  In the example of FIG. 4, the table of FIG. 3 (hereinafter referred to as a table before change) includes a table including content slide numbers 51, 52, 52 ′, 53 and video selection numbers 61, 61, 61, 62 (hereinafter referred to as a table after change). ) Indicates the case where it is changed. That is, the new content indicated by the content slide number 52 ′ is replaced with the content slide number 52 at the time 0:00 of the pre-change table. In such a case, after the lecturer 2 gives a lecture, when a part of the content slide number 52 at 0:00 is found in error, or the information on the content slide number 52 is updated to the latest data. It is assumed in some cases.

  At this time, the information changing unit 16 replaces the content slide number 52 with the content slide number 52 ′ based on the information acquired from the input unit 15. Alternatively, the information changing unit 16 outputs a command for changing the pre-change table to the synchronization information generating unit 12 based on the information acquired from the input unit 15. In response to the operation of the information changing unit 16, the content is replaced with the content slide number 52 '.

  In addition, when there are a plurality of images captured by the plurality of imaging units 35, an image from time 0:07:30 indicated by the image selection number 61 in the pre-change table is selected according to an instruction from the user. It is replaced with another video indicated by numeral 62. For example, a case where the video capturing the lecturer 2 is replaced with a video capturing the audience 3 may be considered.

  The information changing unit 16 can change the time information in response to an instruction from the input unit 15 in which a user instruction is input. For example, the information changing unit 16 may change the time information from 0:00 to 0:05:05, for example, when there is a slight shift in the time information by replacing the content.

  The recording unit 17 does not record the synchronization information generated by the synchronization information generation unit 12 in the recording medium 100 as a new file included in the content, but records it in the recording medium 100 independently of the content. The recorded information may also be recorded independently of the synchronization information, and the synchronization information can be edited more easily. The recording medium 100 may be various information recording media such as a DVD and a BD, but it is preferable to use a medium with a large storage capacity (for example, BD). An example of the recording medium 100 and information recording on the recording medium 100 will be described later with reference to FIG.

  The synchronized playback unit 18 includes a first synchronized playback unit (first synchronized playback unit) 18a and a second synchronized playback unit (second synchronized playback unit) 18b. From the synchronized information generating unit 12 or the recording medium 100, the synchronized playback unit 18 , Get content and recording information.

  Then, the first synchronous reproduction unit 18a reproduces the content and the recorded information in synchronization based on the synchronization information. That is, in the information synchronizer 10, the playback timing of content and recorded information is defined based on time information.

  In the example of FIG. 3, focusing on time 0:00, it is indicated that the time 0:01:00 corresponds to the time when the content slide number has changed from 51 to 52. At time 0:01:00, the video imaged by the imaging unit 35 is the video image indicated by the video selection number 61, the pointer information is the pointer coordinate data 72, and the board writing information is the board writing data 82. Is shown.

  Therefore, the first synchronous playback unit 18a plays back the corresponding video selection number 61 in synchronization with the time 0:00 at the time 0:00 when the content changes.

  When the recorded information includes at least one of pointer information and input information, the second synchronized playback unit 18b superimposes at least one of the pointer information and input information included in the recorded information on the content based on the synchronized information. Play together. In the example of FIG. 3, focusing on time 0:00, it is indicated that the time 0:01:00 corresponds to the time when the content slide number has changed from 51 to 52. At time 0:01:00, it is indicated that the pointer information is the pointer coordinate data 72 and the board writing information is the board writing data 82. Therefore, the second synchronized playback unit 18b plays back the pointer information corresponding to the pointer coordinate data 72 and the board data 82 in synchronization with the time 0:00 at the time 0:00 when the content changes. To do.

  A reproduction signal for instructing reproduction is transmitted from the synchronous reproduction unit 18 to the display device 200, and the content or the like is displayed on the display device 200.

  Here, the coordinates indicated by the pointer 33 are detected by the detection camera unit 41 having an infrared filter, and the position coordinates are recorded on the recording medium 100 via the information synchronization device 10. The pointer information is specified from the position coordinates. The first synchronized playback unit 18a can also acquire pointer information directly from the synchronized information generating unit 12.

  The input information input to the touch panel 37 is recorded on the recording medium 100 via the information synchronization apparatus 10. The input position coordinates and contents are specified from the position coordinates. The second synchronized playback unit 18b can also acquire input information directly from the synchronized information generating unit 12.

  The reproduction signal output from the synchronous reproduction unit 18 may be transmitted to the display device 200 via the communication unit 19. This will deliver content (such as presentation materials used in the class) and recorded information (such as class scenery) to audiences who have not attended the class, audiences located in remote locations, sickly attended audiences, etc. be able to. Accordingly, it can be considered that a plurality of display devices 200 illustrated in FIG. 1 exist.

  In the display device 200, for example, the screen is divided into two parts, and the content is reproduced on one screen, and for example, a video showing the classroom scenery is reproduced on the other screen in synchronization with the content and the recorded information. In addition, pointer information and board writing information may be displayed superimposed on the content.

[Schematic Configuration of Recording Medium 100]
FIG. 5 is a diagram for explaining a schematic configuration of each recording layer of the recording medium 100. In the following description, as a layer of the recording medium 100, a rewritable recording layer (recordable area) is referred to as an RE (RE-writable) layer, and a reproduction-only recording layer (reproduction-only area) is a ROM (Read-only area). The recording layer (recordable area) that can be additionally recorded is called an R (Recordable) layer.

  FIG. 5 shows a configuration of a recording medium 100 in which a substrate 101, an RE layer 102, an intermediate layer 103 made of a transparent resin, a ROM layer 104, and a cover layer 105 are laminated in that order.

  The RE layer 102 includes a management area 102a, a lead-in area 102b, a user data area 102c, and a lead-out area 102d. Similarly, the ROM layer 104 is provided with a management area 104a, a lead-in area 104b, a user data area 104c, and a lead-out area 104d.

  In the figure, the recording medium 100 is described as including one RE layer 102 and one ROM layer 104. However, the recording medium 100 may be realized with a configuration including a plurality of RE layers 102 and ROM layers 104. Further, the order in which the RE layer 102 and the ROM layer 104 are stacked is not limited to the order described in the figure, and can be arbitrarily determined. Further, only one of the management areas 102a or 104a may be provided.

  At this time, the recording unit 17 records the recording information and the synchronization information on the RE layer 102 of the recording medium. Further, content may be recorded in the RE layer 102 and / or the ROM layer 104.

  With the above configuration, content and recorded information can be recorded on a single recording medium 100, and can be distributed in a large amount at a low cost. Convenience can be improved.

[Effects of information synchronizer 10]
Hereinafter, effects obtained by the information synchronization apparatus 10 will be described. Here, for ease of understanding, a case where the information synchronization apparatus 10 is applied to educational use will be described as an example. However, the following effects are similarly realized when the information synchronization apparatus 10 is used for purposes other than education.

  In the field of education, presentation materials (contents) are often displayed on a monitor or screen in front of students, and lecturers are often taught in a presentation format. In such classes, there are students who cannot attend classes because they are sick or are in remote areas. Therefore, the information synchronization apparatus 10 can be used for such students.

  Specifically, in the lesson, the presentation material displayed on the monitor unit 30, the voice uttered from the presentation material, the voice of the instructor or student, the pointer that the instructor instructs the presentation material, and the instructor input to the touch panel 37 Various information such as input information such as comments etc. Much of this information can be said to be necessary for a deep understanding of presentation materials. Therefore, it is desirable that students who are absent from the class not only watch the content afterwards but also check the information exchanged during the class in order to deeply understand the content.

  In this regard, the information synchronization apparatus 10 includes the various configurations described above, and uses the synchronization information to include content and at least one of video and audio indicating the state of the scene where the content is displayed on the display device. Information can be synchronized and reproduced. Also, the information synchronization apparatus 10 can reproduce the pointer information and the input information included in the recorded information by superimposing them on the content based on the synchronization information. Therefore, the information synchronization apparatus 10 can make the student absent from the class understand the content more deeply by synchronously reproducing not only the content but also the recorded information, the pointer information, and the input information.

  At this time, since the synchronization information is recorded (handled) independently of the content, it is not necessary to newly generate new information in which the synchronization information is incorporated into a part of the content. Therefore, the content can be used as it is in synchronizing the content with the recorded information. In addition, unlike the content included in the video captured by the imaging unit 35, the content is played back, and thus a video with better visibility is provided to the user. Furthermore, in the information synchronization apparatus 10, since the contents are used as they are when the contents and the recorded information are synchronized, the load on the information synchronization apparatus 10 can be reduced as compared with the conventional apparatus.

  In the conventional information synchronization apparatus, time information is added to the content provided by the lecturer and stored again as moving image information. In addition, time information is also added to the moving picture information obtained by photographing the scene scenery and the like, and the moving picture information is stored again. And after performing the process, each moving image information was reproduced synchronously. In such a conventional method, it is necessary to generate moving image information anew, which increases the load on the apparatus. In addition, because of the method of generating moving image information, it has been difficult to change content, recorded information, and time information. In that regard, the information synchronization apparatus 10 can solve the above-described conventional problems.

  Furthermore, in the information synchronizer 10, not only the content but also the recorded information and the time information can be changed. For example, when the instructor's explanation timing is delayed with respect to the display of the content, the content and the recorded information can be synchronously reproduced at a more optimal timing by appropriately changing the time information.

  In addition, since it is possible to change the recorded information, for example, when classes related to the same presentation material are conducted separately by different lecturers, only a part of the presentation material should use the recorded information corresponding to different lecturers. Is also possible. Thereby, it is also possible to adopt a method in which a part with a more easily understood explanation is individually extracted from a class by a plurality of lecturers to further improve the student's understanding of the content.

  Furthermore, since the information synchronization apparatus 10 can freely change the displayed content, recorded information (classroom video, audio, etc.) and time information, not only the video of the lecturer and the display of the content on the monitor unit 30, but also the student You can also check the student's level of understanding by switching to the student's voice. Thereby, the information synchronizer 10 can be used also as a use which measures the student's understanding degree with respect to a content from the lecturer side.

  The information synchronizer 10 may be included in a recording / reproducing apparatus that records / reproduces a recording medium such as a DVD or a BD. Thereby, the information synchronizer 10 and the recording / reproducing apparatus are integrated, and the ease of handling of the apparatus can be improved.

The microphone unit 32 and the imaging unit 35 may be provided either inside or outside the information synchronization apparatus 10 and may be appropriately designed according to the layout of the apparatus.
[Another expression of the present invention]
The information synchronization apparatus of the present invention can also be expressed as follows.

  An information synchronization apparatus according to the present invention is a recording / reproducing apparatus that records and / or reproduces information on a recording medium. The information reproducing apparatus reproduces content recorded on the recording medium, and reproduces the content using the content reproducing unit. A video recording means for recording video and / or audio on the recording medium and synchronization information recording means for recording synchronization information for synchronizing the content and the video and / or audio on the recording medium. It may be.

  In the information synchronization apparatus of the present invention, the recording medium is a recording medium having a reproduction-only area and a recordable area, and the content is recorded in the reproduction-only area and / or the recordable area of the recording medium, The video recording means and the synchronization information recording means may be used to record in a recordable area of the recording medium.

  In the information synchronization apparatus of the present invention, the synchronization information includes at least reference information for reproducing the content and timing for reproducing the reference information for reproducing the video and / or audio and the content and the video and / or audio in synchronization. And a means for editing at least one of recorded content, video and / or audio, and time.

  In addition, the information synchronization apparatus of the present invention may be configured to reproduce the content and the video in synchronization based on synchronization information for synchronizing the content with the video and / or audio.

  In addition, the information synchronization apparatus according to the present invention is included in a playback apparatus, and the playback apparatus is configured to select one from a plurality of video and / or audio information when there are a plurality of video and / or audio to be synchronized with content. It's okay.

[Supplement]
Finally, each block of the information synchronization apparatus 10 may be configured by hardware logic, or may be realized by software using a CPU as follows.

  That is, the information synchronizer 10 includes a CPU (central processing unit) that executes instructions of a control program for realizing each function, a ROM (read only memory) that stores the program, and a RAM (random access memory) that expands the program. And a storage device (recording medium) such as a memory for storing the program and various data. An object of the present invention is a recording medium on which a program code (execution format program, intermediate code program, source program) of a control program of the information synchronization apparatus 10 which is software that realizes the above-described functions is recorded so as to be readable by a computer. This can also be achieved by supplying the information synchronization apparatus 10 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a disk system including a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD / MO / MD / DVD / BD, and an IC card. A card system such as an optical card (including a memory card) or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM can be used.

  Further, the information synchronization apparatus 10 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Also, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The various forms of the information synchronization apparatus according to the present embodiment have been described above. These forms show an example of the present embodiment, and it is naturally possible to combine the forms described here.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

  The present invention relates to an information synchronization apparatus that synchronizes and reproduces content and recorded information including video or audio indicating the state of the site where the content is displayed on the display device while using the content as it is, and is suitable for the recording and reproduction device. Can be used.

DESCRIPTION OF SYMBOLS 1 Synchronous reproduction system 2 Instructor 3 Audience 4 Internet 5 Screen 10 Information synchronizer 11 Recording information acquisition part (recording information acquisition means)
12 Synchronization information generation unit (synchronization information generation means)
13 Timekeeping (Timekeeping means)
14 Monitor 15 Input section (input means)
16 Information change part (change means)
17 Recording section (recording means)
18 Synchronized playback unit 18a First synchronized playback unit (first synchronized playback means)
18b Second synchronized playback section (second synchronized playback means)
19 Communication unit 30 Monitor unit 31 Instructor terminal 32 Microphone unit 32a First microphone unit 32b Second microphone unit 33 Pointer 34 Speaker unit 35 Imaging unit 37 Touch panel 40 Projector 41 Detection camera unit 50 Remote control 51, 52, 52 ′, 53 Content slide numbers 61, 62 Video selection numbers 71, 72, 73, pointer coordinate data 81, 82, 83, 84 Board writing data 100 Recording medium 200 Display device

Claims (11)

Recording information acquisition means for acquiring recording information including at least one of video and audio indicating the situation of the site where the content is displayed on the display device;
Synchronization information generating means for generating synchronization information for synchronizing and reproducing the recorded information acquired by the recorded information acquiring means and the content;
An information synchronization apparatus comprising: recording means for recording the synchronization information generated by the synchronization information generation means on a recording medium independently of the content.   The recorded information acquired by the recorded information acquisition means further includes at least one of pointer information indicated by a pointer on the display screen of the display device and input information input to the display screen. The information synchronization apparatus according to claim 1. The recording medium has a read-only area and a recordable area,
The content is recorded in at least one of the reproduction-only area and the recordable area,
3. The information synchronization apparatus according to claim 1, wherein the recording unit records the recorded information and the synchronization information in the recordable area of the recording medium.   The information synchronization apparatus according to claim 1, further comprising changing means for changing at least one of the content and the recorded information. It further comprises a time measuring means for measuring time,
The synchronization information includes time information timed by the timekeeping means,
The information synchronization apparatus according to any one of claims 1 to 3, wherein in the synchronization information, the reproduction timing of the content and the recorded information is defined based on the time information.   6. The information synchronization apparatus according to claim 5, further comprising changing means for changing at least one of the content, the recorded information, and the time information.   The information synchronization apparatus according to any one of claims 1 to 6, further comprising first synchronous reproduction means for reproducing the content and the recorded information in synchronization based on the synchronization information.   3. The second synchronized reproduction means for reproducing, based on the synchronization information, at least one of the pointer information and the input information included in the recorded information superimposed on the content. Information synchronization device.   9. The information processing apparatus according to claim 1, further comprising an input unit that receives an instruction from a user to select desired recording information from the plurality of recording information when there are a plurality of the recording information to be synchronized with the content. The information synchronizer according to item 1. A recording medium,
It has a playback-only area and a recordable area,
Content displayed on the display device is recorded in at least one of the read-only area and the recordable area,
In the recordable area, the recording information indicating at least one of the video and audio in the situation where the content is displayed on the display device and the synchronization information for reproducing the content in synchronization with the content A recording medium which is recorded independently. A recording information acquisition step for acquiring recording information including at least one of video and audio indicating the situation of the site where the content is displayed on the display device;
A synchronization information generating step for generating synchronization information for synchronizing and reproducing the recording information acquired in the recording information acquisition step;
And a recording step of recording the synchronization information generated in the synchronization information generation step on a recording medium independently of the content.

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