WO2007119383A1 - Content reproduction device, content reproduction resumption method, and content reproduction program - Google Patents

Content reproduction device, content reproduction resumption method, and content reproduction program Download PDF

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Publication number
WO2007119383A1
WO2007119383A1 PCT/JP2007/055286 JP2007055286W WO2007119383A1 WO 2007119383 A1 WO2007119383 A1 WO 2007119383A1 JP 2007055286 W JP2007055286 W JP 2007055286W WO 2007119383 A1 WO2007119383 A1 WO 2007119383A1
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WO
WIPO (PCT)
Prior art keywords
content
playback
position information
reproduction
interruption
Prior art date
Application number
PCT/JP2007/055286
Other languages
French (fr)
Japanese (ja)
Inventor
Isao Shindo
Yukio Shikatani
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Publication of WO2007119383A1 publication Critical patent/WO2007119383A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4333—Processing operations in response to a pause request
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/781—Television signal recording using magnetic recording on disks or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums

Definitions

  • Content playback apparatus content playback restart method, and content playback program
  • the present invention relates to a content playback device having a function of appropriately restarting playback of the same content thereafter when content playback such as a recorded broadcast program or a video recorded on a DVD is interrupted, and content playback Background art relating to resumption method and content reproduction program
  • the retroactive time is uniformly set in advance, so depending on the position where it was interrupted, the viewing content may be retroactive or the retroactive time may be too short. there were.
  • the retroactive position is in the middle of a conversation, the If one is divided, it will be viewed without understanding the contents. Further, Patent Document 1 discloses that the user selects the retroactive time, which increases the work for the user and becomes complicated.
  • the present invention has been made in view of the above-described conventional circumstances, and when resuming the reproduction of the interrupted content, the user can accurately recall the viewing contents up to the reproduction interruption position, and
  • An object of the present invention is to provide a content playback apparatus, a content playback restart method, and a content playback program that can smoothly resume viewing.
  • the content playback device of the present invention is a content playback device having a function of restarting playback of an interrupted content, the input means for receiving an input from the outside, and the playback of the content received by the input means
  • the interruption position information generating means for generating interruption position information indicating the position where the reproduction of the content was interrupted
  • the interruption position information and the content Resume position determination means for generating reproduction resume position information indicating a position where the reproduction of content is resumed based on the content break position information indicating a specific break, and reproduction of the content based on the reproduction resume position information.
  • Reproduction restart control means for restarting. According to the above configuration, the playback of the interrupted content can be resumed with the appropriate position, so that the user can accurately recall the viewing content up to the playback interruption position, and the subsequent portion can be resumed smoothly. Can do.
  • the restart position determination unit generates the playback restart position information with the content break position closest to the interrupt position indicated by the stop position information as the playback restart position. Is. According to the above configuration, the playback of the interrupted content can be resumed at the position appropriate to the content at the time of the interruption, so that the user can accurately recall the content of the viewing up to the playback interruption position and watch the subsequent portion. It can be resumed smoothly.
  • the restart position determining unit calculates a correction time according to a length of time during which the content reproduction is interrupted, and the correction time is calculated from the interruption position. Playback restart position at the closest content break position when going back
  • the reproduction restart position information is generated as follows. According to the above configuration, it is possible to accurately recall past viewing contents by, for example, resuming playback after a longer time as the interruption time becomes longer.
  • the validity time The playback restart position information is generated with the content delimiter position that is the start time of the playback as the playback restart position.
  • the valid time is information indicating the duration time of an arbitrary state, and indicates, for example, the time during which caption information is presented (the time from the presentation start time to the presentation end time). According to the above configuration, for example, the playback can be resumed retroactively to the presentation start time of the caption information presented when the playback is interrupted, so that the content of the conversation can be appropriately played back without being interrupted.
  • the resumption position determination unit determines that the effective position is not included when the interruption position indicated by the interruption position information is not included in the nearest valid time traced back to the interruption position force.
  • the playback resume position information is generated with the content break position (content break position with an effective time of 0) being the end point of time as the play resume position.
  • the restart position determination unit includes the interrupt position indicated by the interrupt position information included in the nearest valid time traced back to the interrupt position force, and the valid time The interval between the content delimiter position at the start of the content delimiter and the content delimiter position close to the front of this content delimiter position must not exceed a predetermined threshold.
  • the reproduction resume position information is generated with the foremost content break position as the reproduction resume position.
  • the predetermined threshold force is preset in a server, and is acquired from the server. According to the above configuration, for example, a series of conversations related to subtitle information that was presented when playback was interrupted. Because it can resume playback, it makes it easier to recall the content.
  • a threshold for determining whether or not a series of content breaks is a series of related items is determined by a business operator, etc. Can be set.
  • the restart position determination unit may be configured such that the interval between the content break position and the content break position adjacent to the front of the content break position does not exceed a predetermined threshold.
  • the reproduction restart position information is generated with reference to weighting information set in accordance with the time distance between the position where the reproduction of the content is interrupted and the position of the specific break of the content. According to the above configuration, for example, a plurality of content breaks can be collected for a long time by weighting the information of each content break position so that it is not as important as the content break position that is farther away from the interruption position. In the case of a wide range, the position force at which playback is resumed Position power at which content playback was interrupted can be prevented from going back too far, and appropriate position force playback can be resumed.
  • the restart position determination unit generates the playback restart position information according to a user identifier for identifying a user. According to the above configuration, even when a plurality of users view the same content, the playback restart position is determined for each user, so that it is possible to restart playback of appropriate positional content corresponding to each user.
  • the content playback device of the present invention is a content playback device having a function of restarting playback of the interrupted content, the input unit receiving external input, and the content playback interruption received by the input unit
  • the interruption position information generating means for generating interruption position information indicating the position where the reproduction of the content was interrupted, and in response to the content reproduction interruption request received by the input means, the interruption position information and the content of the content
  • the restart position determining means for generating the playback restart position information indicating the position where the playback of the content is restarted based on the content break position information indicating a specific break
  • Playback restart control means for restarting playback of content based on the playback restart position information.
  • the content delimiter position information is represented by a presentation start time and a presentation end time of caption information included in the content. According to the above configuration, the playback resume position can be appropriately set using the existing caption information.
  • the content delimiter position information includes a value of Media Ref Time, a value of Media Ref Time, and a value of Media Duration related to segmentation metadata or segmentation group metadata. It is expressed by power calculation.
  • the content delimiter position information is represented by a time stamp of the switching timing related to the strength of the audio data of the content. Further, the content reproduction apparatus of the present invention is represented by a time stamp of the switching timing related to the scene of the content segment position information power content video data. According to the above configuration, it is possible to appropriately set the playback restart position using the various information.
  • the content delimiter position information is set in advance in a server and is acquired from the server. According to the above configuration, the content delimiter position information specified by the business operator can be used. The invention's effect
  • FIG. 1 is a diagram showing an internal configuration of a content reproduction device according to Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart showing a procedure for determining a playback restart position of the content playback device in Embodiment 1 of the present invention.
  • FIG. 3 is a diagram conceptually showing a data structure of a content delimiter position information list and content trigger information used in the content playback device in Embodiment 1 of the present invention.
  • FIG.4 Diagram showing the configuration of content delimiters represented by the content delimiter position information list
  • FIG. 5 is a content trigger used in the content playback device in Embodiment 2 of the present invention.
  • FIG. 6 is a flowchart showing a playback restart position determination process procedure of the content playback apparatus in Embodiment 2 of the present invention.
  • FIG. 7 is a diagram conceptually showing the data structure of an interruption time determination table used in the content reproduction device in Embodiment 2 of the present invention.
  • FIG.8 Diagram showing the configuration of content delimiters represented by the content delimiter position information list
  • FIG. 9 is a flowchart showing a playback restart position determination process procedure of the content playback apparatus in Embodiment 3 of the present invention.
  • FIG. 10 is a diagram conceptually showing the data structure of a content segmentation section information list used in the content reproduction device in Embodiment 3 of the present invention.
  • FIG. 11 A diagram schematically showing the structure of the content breaks and sections represented by the content break section information list
  • FIG. 12 A diagram schematically showing the structure of the content breaks and sections represented by the content break section information list
  • FIG. 13 is a flowchart showing a part of a playback restart position determination processing procedure of the content playback apparatus in Embodiment 4 of the present invention.
  • FIG. 14 A diagram schematically showing the structure of content breaks and sections represented by the content break section information list
  • FIG. 15 A diagram schematically showing the structure of content breaks and sections represented by the content break section information list
  • FIG. 16 is a diagram conceptually showing a data structure of content trigger information used in the content reproduction device in the fifth embodiment of the present invention.
  • the content playback apparatus can perform any video data such as a recorded television program, video data provided on a recording medium such as DVD, and VOD video provided via a network. (Hereinafter, these video data are collectively referred to as “content”).
  • this content playback device records the interrupt position when interrupting the playback of content, acquires content break position information and content break section information when resuming playback, and determines the appropriate play resume position to play back To resume.
  • FIG. 1 is a diagram showing an internal configuration of the content reproduction apparatus according to Embodiment 1 of the present invention.
  • the content playback device 10 has a function of restarting playback of the interrupted content, and includes an input unit 1 that receives input from the outside, a data input unit 2 that acquires content data and the like from the outside, and an input unit 1
  • the output control unit 4 that generates interruption position information indicating the position where the reproduction of the content was interrupted
  • the viewing management unit 5 that manages the information generated by the output control unit 4, and the input
  • reproduction resume position information indicating a position where the reproduction of the content is resumed based on the interruption position information and the content separation position information indicating the content break.
  • a restart position determination unit 6 for generating the content, and the output control unit 4 restarts the reproduction of the content based on the playback restart position information, and the output unit 3 outputs the output control unit.
  • the content is reproduced and output under the control of 4.
  • the input unit 1 receives an input signal corresponding to a user operation such as a content reproduction interruption request or a content reproduction resumption request, and sends it to the output control unit 4.
  • the input signal includes an identification IJ child (content ID) for identifying the content and a signal for identifying a bidet operation for viewing the content.
  • User operations include “play” and “stop (playback interruption)” , “Resume playback”.
  • methods such as remote control operation, operation buttons on the main unit, mouse, keyboard, and up / down keys on the remote control can be used to select icons on the screen or to select by voice. However, it is not limited to them.
  • the data input unit 2 obtains content data and information related to the content and attributes of the content from the outside.
  • content data include the recorded TV program, video data provided on a recording medium such as a DVD, and VOD video provided via a network, as described above.
  • Such data and information may be stored in a storage device (not shown) in the device, or may be stored in a storage device connected via a network. Further, it may be supplied by streaming via a network, or a recording medium power such as a DVD or a flash memory card may be supplied. In other words, the location where the content data exists and the data format are not limited.
  • the output unit 3 reproduces and outputs the designated content acquired by the data input unit 2 in accordance with an instruction from the output control unit 4.
  • the output control unit 4 controls the playback, stop, and restart of the content.
  • the output control unit 4 acquires the content corresponding to the identifier from the data input unit 2 and outputs it to the output unit 3 to start reproduction.
  • the output control unit 4 stops the playback of the content, plays back the content identifier of V, and interrupts it.
  • the interruption position information is generated from the position, and the generated interruption position information is transmitted to the viewing management unit 5 as content trigger information.
  • the output control unit 4 receives content trigger information of the content corresponding to the specified identifier from the viewing management unit 5. It is acquired and provided to the restart position determination unit 6 to request playback restart position information. Then, the output control unit 4 sends the content identifier included in the reproduction resume position information acquired from the resume position determination unit 6 to the data input unit 2, acquires the corresponding content, and is included in the reproduction resume position information. Playback restart position Starts playback of content and outputs Output to 3.
  • the viewing management unit 5 stores and manages the content trigger information generated by the output control unit 4, and searches for and provides the corresponding content trigger information in response to a request from the output control unit 4.
  • the content trigger information includes an identifier that can uniquely identify the content, and information that can specify a position in the content such as an offset time from the content start time. In addition, a flag indicating that the operation has been interrupted may be held.
  • the resume position determination unit 6 acquires the interruption position information from the output control unit 4, and acquires the corresponding content from the data input unit 2 based on the content identifier included in the interruption position information. Then, the restart position determination unit 6 obtains the content break position information from the content and determines the playback restart position by comparing with the interruption position information. The determination result is sent to the output control unit 4 as playback resume position information.
  • Digital broadcasting subtitle information is information for displaying subtitles by superimposing them on the video. Describes the display start time and display period, the text data to be displayed and the display position, text color and font, etc. Has been. The process for determining the resuming position will be described later.
  • FIG. 2 is a flowchart showing a playback restart position determination processing procedure of the content playback device in Embodiment 1 of the present invention.
  • the restart position determination unit 6 of the content playback device 10 extracts the time stamps of the display start time from all the acquired subtitle information catalogs, and generates a content break position information list as “break time” (step S101).
  • the restart position determination unit 6 searches the content break position information list that is closest to the interrupt position of the interrupt position information acquired separately from the content break position information list (step S102).
  • the resume position determination unit 6 registers the retrieved content break position information break time as a play resume position (time) of the play resume position information (step S103), and outputs the play resume position information. Output to control unit 4.
  • FIG. 3 shows content used in the content reproduction apparatus according to Embodiment 1 of the present invention. It is a figure which shows notionally the data structure of a division
  • FIG. 4 is a diagram schematically showing a configuration of content delimiters represented by the content delimiter position information list.
  • the content playback device of this embodiment when playback is interrupted with a starting force of 33 minutes 30 seconds 00 (see FIG. 4), the content playback device of this embodiment The content delimiter position closest to the interruption position is registered as the reproduction restart position. In other words, when resuming playback, playback starts from the break time of identifier C, 32 minutes 00 seconds 00.
  • subtitle information included in analog broadcasting may be used for extracting content delimiter position information.
  • segment information (Segment Information) describing scene information used in server-type broadcasts or segment group information (Segment Group Information) describing scenario information connecting scenes may be used.
  • segment Group Information Segment Group Information
  • the audio of the content may be extracted and its strength may be used, or the video may be extracted and the change may be used.
  • the content delimiter position information may be acquired from the outside such as a remote server based on the content identifier. Further, the content delimiter position information may be input by the user for each content or for all content.
  • the content playback apparatus of Embodiment 1 of the present invention after content playback is interrupted, the content is appropriately traced back to the display start time of the subtitles displayed at the time of the interrupt. Positional power can also resume content playback. For example, in the case of a drama, even if playback is interrupted in the middle of a line displayed in the subtitle, the video from the first part of the line is played back when resuming, so the user can view the past viewing contents. You can recall it accurately and watch the rest.
  • Embodiment 2 of the present invention a content reproduction apparatus according to Embodiment 2 of the present invention will be described. Note that the internal configuration of the content reproduction apparatus of the second embodiment is the same as that of the first embodiment, and thus the description thereof is omitted.
  • FIG. 5 is a diagram conceptually showing a data structure of the content trigger information used in the content reproduction device in the second embodiment of the present invention. As shown in the figure, the time information at which the reproduction of the content is interrupted is added to the content trigger information in the first embodiment.
  • the interruption time may be the current time at the time of the viewing interruption or the system time as long as the time difference between the viewing interruption and the resumption of viewing is known.
  • the restart position determination unit 6 compares the content break position information and the interrupt position information to determine the playback restart position.
  • the restart position determination unit 6 determines an interrupt time (content playback) that is a time during which the content playback is interrupted. Weighting is based on the length of time from the point of interruption (when the content playback is interrupted) to the time when the content playback restart request is received), and the playback restart position is determined in consideration of the weighting.
  • caption information is used as an extraction source of content break position information.
  • FIG. 6 is a flowchart showing a playback restart position determination processing procedure of the content playback apparatus in Embodiment 2 of the present invention.
  • the restart position determination unit 6 extracts the time stamp of the display start time from all the acquired caption information, and generates a content break position information list as the “break time” (step S201).
  • the resume position determination unit 6 acquires “correction time” information from the suspension time calculated based on the above-described content trigger information and the suspension time determination table in which the time traced back when the reproduction is resumed (step). P S 202).
  • FIG. 7 is a diagram conceptually showing a data structure of the interruption time determination table used in the content reproduction device in the second embodiment of the present invention.
  • the interruption time determination table is a correspondence table between the interruption time, which is the elapsed time from the time when content playback is interrupted to the time when viewing is resumed, and the “correction time” that indicates the range for retroactively correcting the playback restart position. is there.
  • the interruption time determination table may be set in advance or may be acquired for each content from a server or the like. Also, there is no limitation on the setting method, such as letting the user input.
  • the restart position determination unit 6 searches the content break position information list for the closest content break position retroactively from the content break position information list (step S203). And resume position The position determination unit 6 determines whether or not the force to the interruption position force is within the range of the “correction time” calculated in advance to the content separation position (step S204). If it is not within the correction time range, the restart position determination unit 6 registers the searched time of the content break position information in the play resume position information (step S205), and ends the process.
  • the restart position determination unit 6 searches for the content break position information immediately before the searched content break position (step S20 6), and again determines the interruption position force. It is determined whether or not the time until the immediately preceding content separation position is within the range of the “correction time” previously calculated (step S207).
  • step S208 If it is within the range of “correction time”, the immediately preceding break position is set as a new “break time” (step S208). Then, the process returns to step S206 and the above procedure is repeated. On the other hand, if it is not within the range in step S207, the restart position determination unit 6 registers the detected break time of the content break position information in the play resume position (step S209), and outputs the play resume position information to the output control unit 4 Output to.
  • FIG. 8 is a diagram schematically showing a configuration of content delimiters represented by the content delimiter position information list. For example, if playback is interrupted with a start force of 33 minutes 30 seconds 00, the content playback device of this embodiment will use the same content, but if the elapsed time after the interruption is 50 minutes, the identifier C separator time 32 minutes 00 seconds 00 is registered as the playback resume position (see Fig. 8 (a)), but when the elapsed time after the interruption is 3 days, the identifier B break time 29 minutes 00 seconds 00 is registered as the playback resume position (See Fig. 8 (b)).
  • the playback restart position of the content after the interruption can be changed according to the playback interruption time.
  • the longer the elapsed time of the interruption time force the more likely that the previous viewing content has been forgotten, but by increasing the time to go back according to the length of the interruption time, the user can It is possible to watch the following part with a precise recall.
  • Embodiment 3 when the reproduction of the interrupted content is resumed, "contents” in which "valid time” information indicating the duration of an arbitrary state from the break position is added to the content break position information.
  • the difference from Embodiments 1 and 2 is that the playback restart position is determined using “separation section information”.
  • caption information is used as an extraction source of content segmentation section information.
  • FIG. 9 is a flowchart showing a playback restart position determination processing procedure of the content playback apparatus in Embodiment 3 of the present invention.
  • the restart position determination unit 6 of the content playback apparatus 10 extracts the acquired caption information display start time stamp and display time, and sets the time and display time as the “separation time” and “valid time” respectively.
  • a list is generated (step S301).
  • the content delimiter section is defined by the time from the delimiter time to the time represented by delimiter time + valid time. From this point, it is possible to change the setting of the playback resume position depending on whether or not the position power is interrupted within the time (that is, the effective time) during which any subtitle is displayed.
  • the resume position determination unit 6 searches the content break section information list for the closest content break section retroactively from the break position power of the separately obtained break position information (step S302).
  • the restart position determination unit 6 determines whether or not a force that includes an interruption position within the searched content segmentation section (step S303). That is, it is determined whether or not the caption is displayed at the playback interruption position. Specifically, the time represented by (separation time + valid time) of the corresponding content separation section information (ie, caption The display end time is determined to be behind the playback interruption position.
  • the segmentation time of the searched content segmentation section is registered at the reproduction restart position (step S304).
  • the restart position determination unit 6 matches the time indicated by the segmentation time of the content segmentation section information (delimitation time + valid time) of the immediately preceding content segmentation section information. It is confirmed whether or not to perform (step S305). If it matches, immediately before Is registered in the playback restart position of the playback resume position information (step S306).
  • the restart position determination unit 6 outputs the registered playback restart position information to the output control unit 4.
  • the symbol A shown in the flowchart of FIG. 9 will be described later.
  • FIG. 10 is a diagram conceptually showing a data structure of a content segmentation section information list used in the content reproduction device according to Embodiment 3 of the present invention.
  • FIG. 11 and FIG. 12 are diagrams schematically showing the configuration of content breaks and sections represented by the content break section information list.
  • the content playback device of this embodiment does not Since the position is included in the content delimiter section of the closest identifier F, the content delimiter time 41 minutes 00 seconds 00 of this content delimiter section information is registered as the playback resume position. In other words, if V and subtitles are displayed at the interruption position !, playback will resume from the same subtitle display start time.
  • the interruption position is not included in the content delimiter section of the nearest identifier E. It is determined whether the break time of the content break section information of identifier E and the time represented by the break time of the content break section information (identifier D) immediately before this content break section + valid time match. . In this case, since it matches at 38 minutes 00 seconds 00, the content break time 38 minutes 00 seconds 00 of the content break section information of the identifier E is registered as the playback restart position. In other words, if no caption is displayed at the interruption position, playback is resumed retroactively to the display end time of the caption displayed immediately before.
  • the identifier E is content delimiter section information having a content delimiter section with a valid time (caption display time) of zero. That is, it is content delimiter section information indicating the delimiter time of a section in which no caption is displayed.
  • subtitle information included in analog broadcasting may be used for extracting content delimiter section information.
  • segment information Segment Information
  • Media Rel Time Point > May be used as the delimiter time
  • ⁇ Media Duration> may be used as the valid time.
  • segment group information Segment Group Information
  • the Media Time Point Point> is included in the segment time and segment group information. The sum of the Media Duration> of all the segment information to be used may be used as the effective time.
  • the content segmentation section information may be extracted by extracting the audio of the content and using its strength, or extracting the video and using the change. For example, it is conceivable to detect a silent section and use it as the delimiter time and valid time of the content delimiter section information up to the end point.
  • the content delimiter section information may be acquired from the outside such as a remote server based on the content identifier. Further, the content delimiter position information may be input by the user for each content or for all content.
  • the content playback apparatus of Embodiment 3 of the present invention after content playback is interrupted, the content is appropriately traced back to the display start time of the subtitles displayed at the time of the interrupt. Positional power can also resume content playback.
  • the subtitles when subtitles are displayed at the position where playback was interrupted, the subtitles are displayed from the beginning, and when no subtitles are displayed, they are traced back to the last display end time of the subtitles.
  • the user can recall the past viewing contents accurately and watch the subsequent part. It is also possible to select a content separation time that goes back to the interruption position by weighting the content separation section information.
  • the subtitles are not displayed for a longer time than the specified time, as described above, the subtitles are displayed as far back as the last subtitle display end time (replaying back to E in Fig. 12). If there is no time shorter than the preset time, the display will go back to the display start time of the latest caption (playback resumes from Figure 12: D). Thus, the user can recall the past viewing contents more accurately and view the subsequent portion.
  • Embodiment 4 of the present invention a content reproduction apparatus according to Embodiment 4 of the present invention will be described. Note that the internal configuration of the content reproduction apparatus of the fourth embodiment is the same as that of the first embodiment. Therefore, explanation is omitted. Further, as in the third embodiment, the restart position determination unit 6 of the content playback apparatus determines the playback restart position after the interruption based on the content break section information.
  • the fourth embodiment is different from the third embodiment in that the playback restart position is determined using a plurality of pieces of content delimiter section information.
  • the content segmentation section of the content segmentation section information is shorter than a predetermined time or if there are continuous content segmentation sections, they are regarded as one group, and after going back to the beginning of the group.
  • caption information is used as an extraction source of content segmentation section information.
  • FIG. 13 is a flowchart showing a part of the playback restart position determination processing procedure of the content playback apparatus in Embodiment 4 of the present invention.
  • the fourth embodiment when an arbitrary subtitle is displayed when the content playback is interrupted, another subtitle displayed immediately before that is more powerfully related. Judgment is made according to the following procedure. Accordingly, a new processing procedure is added to the portion of symbol A in the flowchart of FIG. Since other processing procedures are the same as those in the third embodiment (from step S301 to step S306 in the flow chart in FIG. 9), description thereof is omitted.
  • the restart position determination unit 6 next selects the corresponding content separation section ( (Hereinafter referred to as section ⁇ ) is searched for a content delimiter section (hereinafter referred to as section
  • FIG. 14 and FIG. 15 are diagrams schematically showing the content delimiters and the structure of the intervals represented by the content delimiter section information list.
  • the interrupt position is closest. Since it is included in the content delimiter section of identifier D to be determined, the relevance with the subtitles displayed in the immediately preceding content delimiter section (identifier C) is determined. Finally, the identifier separation time 32 minutes 00 seconds 00 is registered instead of the identifier D separation time 35 minutes 00 seconds 00 as the playback resume position.
  • subtitle D display time the start time of the content delimiter section of identifier D
  • subtitle C display time the end time of the content delimiter section of identifier C
  • the content playback device of this embodiment Since the interruption position is included in the content delimiter section of the closest identifier ⁇ , the relevance with the subtitle displayed in the immediately preceding content delimiter section (identifier C) is determined. Finally, the identifier C delimiter time 32 minutes 00 seconds 00 after the identifier IV delimiter time 35 minutes 01 seconds 00 is registered as the playback resume position.
  • the start time of the content delimiter section of identifier (referred to as subtitle ⁇ display time) and the end time of the content delimiter section of identifier C (referred to as subtitle C display time) are within a predetermined threshold (for example, This is because the threshold is 34 in Fig. 15 (ie, when subtitles are displayed) Because the interval between the start time and the start time of the subtitle c display time does not exceed the predetermined threshold), it was determined that subtitle C and subtitle E are related in content. Thus, when a caption is displayed at the interruption position, playback is resumed retroactively to the display start time of the first caption in a series of related captions.
  • the above threshold is a preset time, and may be a format obtained from Sano according to the content, or a format in which the user inputs and selects.
  • the content break time that goes back to the interruption position may be selected by weighting the content break interval information depending on whether the content break interval information is valid.
  • the interruption position force may be weighted to the time going back to the content separation time, and the content separation section information may be selected.
  • the playback restart position is set by weighting the threshold value when a plurality of content segmentation section information is made into one group so that the interruption position force becomes smaller as the time until the content segmentation time becomes longer. Interruption position force Prevents going back too far and can resume playback from the appropriate position
  • the content playback apparatus of Embodiment 4 of the present invention after content playback is interrupted, the content is appropriately traced back to the display start time of the subtitles displayed at the time of the interrupt. Positional power can also resume content playback.
  • Embodiment 4 when another subtitle that is determined to be highly relevant to the subtitle that was displayed at the position where playback was interrupted is displayed before that, a series of related subtitles are displayed. Since playback is resumed retroactively to the display start time of the first subtitle, the user can accurately recall the past viewing contents and view the subsequent part.
  • Embodiment 5 of the present invention a content reproduction apparatus according to Embodiment 5 of the present invention will be described. Note that the internal configuration of the content reproduction apparatus of the fifth embodiment is the same as that of the first embodiment, and thus the description thereof is omitted.
  • FIG. 16 is a diagram conceptually showing a data structure of content trigger information used in the content reproduction device in the fifth embodiment of the present invention.
  • the reproduction resume position is managed individually, so that each user can It is possible to watch the subsequent part by accurately recalling the past viewing contents.
  • Embodiment 6 of the present invention a content reproduction apparatus according to Embodiment 6 of the present invention will be described. Note that the internal configuration of the content playback apparatus of the sixth embodiment is the same as that of the first embodiment, and thus the description thereof is omitted.
  • the interruption position is stored when the content reproduction is interrupted (when the content reproduction interruption request is received), and the reproduction is resumed when the reproduction is resumed (when the content reproduction resumption request is received).
  • the restart position is determined, in Embodiment 6, playback resume position information is generated and stored from the interrupt position when content playback is interrupted (when a content playback interrupt request is received).
  • playback resumed when playback is resumed (when a content playback resume request is received), only the stored playback resume position information is read.
  • the input unit, output control unit, viewing management unit, data input unit, output control unit, and restart position determination unit of the content playback device are connected via a network that does not need to be on the same device.
  • they may be connected via radio such as a remote controller or a portable device.
  • the input to the input unit may be an operation button on the main body, an input via radio using a remote controller or a portable device, or an input using sound.
  • the data input to the data input unit may be content data and content attribute information stored in a storage device in the device.
  • data may be input from a storage device connected via a network, may be input by streaming via a network, or may be a portable storage device such as a DVD or flash memory card. It is possible to input force.
  • the present invention has an effect that the user can accurately recall past viewing contents and can smoothly resume viewing of the subsequent portion, and contents such as a recorded broadcast program and a moving image recorded on a DVD. This is useful for a content playback apparatus, a content playback restart method, a content playback program, and the like having a function of appropriately restarting playback of the same content thereafter when the playback of the same content is interrupted.

Abstract

It is possible to provide a content reproduction device capable of smoothly resuming view of a remaining portion when resuming a content reproduction which has been interrupted, by making a user accurately recall the past view contents. The content reproduction device has a function to resume reproduction of a content which has been interrupted. The content reproduction device includes: an input unit (1) for receiving an input from outside; a data input unit (2) for acquiring content data and the like from outside; an output control unit (4) for generating interruption position information indicating the position where the content reproduction has been interrupted according to a content reproduction interruption request received by the input unit (1); a view management unit (5) managing information and the like generated by the output control unit (4); and a resumption position judging unit (6) for generating content partitioning position information indicating a content partition of the content and reproduction resumption position information indicating the position where the content reproduction is resumed according to the interruption position information. According to the reproduction resumption position information, the output control unit (4) resumes content reproduction and the output unit (3) is controlled by the output control unit (4) to reproduce and output the content.

Description

明 細 書  Specification
コンテンツ再生装置、コンテンツ再生再開方法およびコンテンツ再生プロ グラム  Content playback apparatus, content playback restart method, and content playback program
技術分野  Technical field
[0001] 本発明は、録画した放送番組や DVDに記録された動画などのコンテンツの再生を 中断した際に、その後の同一コンテンツの再生を適切に再開する機能を有するコン テンッ再生装置、コンテンツ再生再開方法およびコンテンツ再生プログラムに関する 背景技術  [0001] The present invention relates to a content playback device having a function of appropriately restarting playback of the same content thereafter when content playback such as a recorded broadcast program or a video recorded on a DVD is interrupted, and content playback Background art relating to resumption method and content reproduction program
[0002] HDDや DVD等の記憶媒体を内蔵したビデオレコーダーの普及により、録画したテ レビ番組などを見た 、時に視聴すると 、つた視聴形態が一般的となった。ビデオレコ 一ダーを用いた再生によれば、視聴を中断しなければならない場合でも、一旦再生 を停止すれば、その後中断位置力 再生を再開することにより容易に続き部分を視 聴できる。  [0002] Due to the widespread use of video recorders with built-in storage media such as HDDs and DVDs, when viewing recorded television programs, etc., sometimes, the viewing format became common. According to the playback using the video recorder, even if the viewing must be interrupted, once the playback is stopped, the subsequent portion can be easily watched by restarting the interrupting position force playback.
[0003] ところが、特に、視聴を中断して力も長時間が経過した場合などは、中断位置から 再生を再開しても、前後の視聴内容 (例えば、ドラマなどの場合はストーリー)を想起 できない場合がある。そこで、視聴を再開する際に、予め設定した一定時間を遡って 力 再生を行う、または一定時間遡ったところ力 中断位置までの画像を表示する再 生装置などが提案されている (例えば、特許文献 1参照)。この再生装置によれば、 中断位置前後の視聴内容を想起しやすぐ円滑に視聴を再開することが可能になる 特許文献 1 :特開 2003— 101921号公報 第 2頁〜第 5頁 図 1  [0003] However, especially when viewing is interrupted and a long period of time has passed, even if playback is resumed from the position where it was interrupted, the previous or next viewing content (for example, a story in the case of a drama, etc.) cannot be recalled. There is. In view of this, a playback device has been proposed that, when resuming viewing, performs force playback after a predetermined time, or displays an image up to a force interruption position after a certain time (for example, a patent). Reference 1). According to this playback apparatus, it becomes possible to recall the viewing contents before and after the interruption position and to resume the viewing smoothly and smoothly. Patent Document 1: Japanese Patent Laid-Open No. 2003-101921 Page 2 to Page 5
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0004] し力しながら、上記従来の再生装置では、遡る時間が予め一律に設定されるため、 中断した位置によっては視聴内容を遡りすぎたり、逆に遡る時間が短すぎたりする場 合があった。遡った位置が会話の最中の場合など、再生再開位置においてストーリ 一が分断されると、内容を理解できないまま視聴することになる。また、特許文献 1に は、遡る時間をユーザが選択することが開示されている力 ユーザにとっては作業が 増えることになり、煩雑になる。 [0004] However, in the above conventional playback device, the retroactive time is uniformly set in advance, so depending on the position where it was interrupted, the viewing content may be retroactive or the retroactive time may be too short. there were. When the retroactive position is in the middle of a conversation, the If one is divided, it will be viewed without understanding the contents. Further, Patent Document 1 discloses that the user selects the retroactive time, which increases the work for the user and becomes complicated.
[0005] 本発明は、上記従来の事情に鑑みてなされたものであって、中断したコンテンツの 再生を再開する際に、再生中断位置までの視聴内容をユーザに的確に想起させ、 続き部分の視聴を円滑に再開することができるコンテンツ再生装置、コンテンツ再生 再開方法およびコンテンツ再生プログラムを提供することを目的とする。  [0005] The present invention has been made in view of the above-described conventional circumstances, and when resuming the reproduction of the interrupted content, the user can accurately recall the viewing contents up to the reproduction interruption position, and An object of the present invention is to provide a content playback apparatus, a content playback restart method, and a content playback program that can smoothly resume viewing.
課題を解決するための手段  Means for solving the problem
[0006] 本発明のコンテンツ再生装置は、中断したコンテンツの再生を再開する機能を有す るコンテンツ再生装置であって、外部からの入力を受け取る入力手段と、前記入力手 段が受け取ったコンテンツ再生中断要求に応じて、コンテンツの再生を中断した位置 を示す中断位置情報を生成する中断位置情報生成手段と、前記入力手段が受け取 つたコンテンツ再生再開要求に応じて、前記中断位置情報と、コンテンツの内容的な 切れ目を示すコンテンツ区切り位置情報とに基づいて、コンテンツの再生を再開する 位置を示す再生再開位置情報を生成する再開位置判断手段と、前記再生再開位置 情報に基づいて、コンテンツの再生を再開させる再生再開制御手段と、を備える。上 記構成によれば、中断したコンテンツの再生を、内容的に適切な位置力 再開できる ため、再生中断位置までの視聴内容をユーザに的確に想起させ、続き部分の視聴を 円滑に再開することができる。 [0006] The content playback device of the present invention is a content playback device having a function of restarting playback of an interrupted content, the input means for receiving an input from the outside, and the playback of the content received by the input means In response to the interruption request, the interruption position information generating means for generating interruption position information indicating the position where the reproduction of the content was interrupted, and in response to the content reproduction restart request received by the input means, the interruption position information and the content Resume position determination means for generating reproduction resume position information indicating a position where the reproduction of content is resumed based on the content break position information indicating a specific break, and reproduction of the content based on the reproduction resume position information. Reproduction restart control means for restarting. According to the above configuration, the playback of the interrupted content can be resumed with the appropriate position, so that the user can accurately recall the viewing content up to the playback interruption position, and the subsequent portion can be resumed smoothly. Can do.
[0007] また、本発明のコンテンツ再生装置は、前記再開位置判断手段が、前記中断位置 情報が示す中断位置力 遡った最も近接するコンテンツ区切り位置を再生再開位置 として前記再生再開位置情報を生成するものである。上記構成によれば、中断したコ ンテンッの再生を、中断時点力 遡った内容的に適切な位置力 再開できるため、 再生中断位置までの視聴内容をユーザに的確に想起させ、続き部分の視聴を円滑 に再開することができる。  [0007] In the content playback apparatus of the present invention, the restart position determination unit generates the playback restart position information with the content break position closest to the interrupt position indicated by the stop position information as the playback restart position. Is. According to the above configuration, the playback of the interrupted content can be resumed at the position appropriate to the content at the time of the interruption, so that the user can accurately recall the content of the viewing up to the playback interruption position and watch the subsequent portion. It can be resumed smoothly.
[0008] また、本発明のコンテンツ再生装置は、前記再開位置判断手段が、コンテンツの再 生を中断している時間の長さに応じて修正時間を算出し、前記中断位置から前記修 正時間分を遡った時点において最も近接するコンテンツ区切り位置を再生再開位置 として前記再生再開位置情報を生成するものである。上記構成によれば、例えば、中 断時間が長くなるほど長い時間遡って再生を再開することにより、過去の視聴内容を 的確に想起できる。 [0008] Further, in the content reproduction apparatus of the present invention, the restart position determining unit calculates a correction time according to a length of time during which the content reproduction is interrupted, and the correction time is calculated from the interruption position. Playback restart position at the closest content break position when going back The reproduction restart position information is generated as follows. According to the above configuration, it is possible to accurately recall past viewing contents by, for example, resuming playback after a longer time as the interruption time becomes longer.
[0009] また、本発明のコンテンツ再生装置は、前記再開位置判断手段が、前記中断位置 情報が示す中断位置が、前記中断位置力 遡った最も近接する有効時間に含まれ る場合、前記有効時間の開始時点であるコンテンツ区切り位置を再生再開位置とし て前記再生再開位置情報を生成するものである。有効時間とは、任意の状態の継続 時間を表す情報であり、例えば字幕情報が提示されている時間 (提示開始時刻から 提示終了時刻までの時間）を示す。上記構成によれば、例えば再生中断時に提示さ れていた字幕情報の提示開始時刻まで遡って再生を再開できるため、会話の内容を 中断することなく適切に再生できる。  [0009] Further, in the content reproduction apparatus of the present invention, when the resumption position determination unit includes the interruption position indicated by the interruption position information included in the nearest validity time traced back to the interruption position force, the validity time The playback restart position information is generated with the content delimiter position that is the start time of the playback as the playback restart position. The valid time is information indicating the duration time of an arbitrary state, and indicates, for example, the time during which caption information is presented (the time from the presentation start time to the presentation end time). According to the above configuration, for example, the playback can be resumed retroactively to the presentation start time of the caption information presented when the playback is interrupted, so that the content of the conversation can be appropriately played back without being interrupted.
[0010] また、本発明のコンテンツ再生装置は、前記再開位置判断手段が、前記中断位置 情報が示す中断位置が、前記中断位置力 遡った最も近接する有効時間に含まれ な ヽ場合、前記有効時間の終了時点であるコンテンツ区切り位置 (有効時間が 0のコ ンテンッ区切り位置)を再生再開位置として前記再生再開位置情報を生成するもの である。上記構成によれば、例えば再生中断時に字幕情報が提示されていない場合 、直近の字幕情報の提示終了時点力 再生を再開できる。また、例えば再生中断時 に字幕情報が提示されていない場合に、直近の字幕情報が、コンテンツの内容的な 切れ目を複数また 、で提示されて 、たときであっても、一連の字幕情報の提示終了 時点から再生を再開できる。  [0010] Further, in the content reproduction device of the present invention, the resumption position determination unit determines that the effective position is not included when the interruption position indicated by the interruption position information is not included in the nearest valid time traced back to the interruption position force. The playback resume position information is generated with the content break position (content break position with an effective time of 0) being the end point of time as the play resume position. According to the above configuration, for example, when caption information is not presented when playback is interrupted, it is possible to resume playback of the latest caption information presentation end point. Also, for example, when subtitle information is not presented at the time of playback interruption, even if the latest subtitle information is presented as multiple content breaks, the series of subtitle information Playback can be resumed from the end of the presentation.
[0011] また、本発明のコンテンツ再生装置は、前記再開位置判断手段が、前記中断位置 情報が示す中断位置が、前記中断位置力 遡った最も近接する有効時間に含まれ 、かつ、前記有効時間の開始時点であるコンテンツ区切り位置と、このコンテンツ区 切り位置の前方に近接するコンテンツ区切り位置との間隔が、所定の閾値を越えな [0011] Further, in the content reproduction apparatus of the present invention, the restart position determination unit includes the interrupt position indicated by the interrupt position information included in the nearest valid time traced back to the interrupt position force, and the valid time The interval between the content delimiter position at the start of the content delimiter and the content delimiter position close to the front of this content delimiter position must not exceed a predetermined threshold.
V、場合、最も前方のコンテンツ区切り位置を再生再開位置として前記再生再開位置 情報を生成するものである。また、本発明のコンテンツ再生装置は、前記所定の閾値 力 予めサーバに設定されており、当該サーバから取得されるものである。上記構成 によれば、例えば、再生中断時に提示されていた字幕情報に関連する一連の会話 の先頭力 再生を再開できるため、コンテンツの内容をより想起しやすくなる。また、 所定の閾値をサーノから取得することにより、コンテンツの内容的な切れ目を複数ま とめたものが内容的に関連している一連のものであるかを判断するための閾値を、事 業者などが設定できる。 In the case of V, the reproduction resume position information is generated with the foremost content break position as the reproduction resume position. In the content playback apparatus of the present invention, the predetermined threshold force is preset in a server, and is acquired from the server. According to the above configuration, for example, a series of conversations related to subtitle information that was presented when playback was interrupted. Because it can resume playback, it makes it easier to recall the content. In addition, by obtaining a predetermined threshold from Sano, a threshold for determining whether or not a series of content breaks is a series of related items is determined by a business operator, etc. Can be set.
[0012] また、本発明のコンテンツ再生装置は、前記再開位置判断手段が、前記コンテンツ 区切り位置と、このコンテンツ区切り位置の前方に近接するコンテンツ区切り位置との 間隔が、所定の閾値を越えない場合、前記コンテンツの再生を中断した位置と前記 コンテンツの内容的な切れ目の位置との時間距離に応じて設定される重み付け情報 を参照して、前記再生再開位置情報を生成するものである。上記構成によれば、例 えば、中断位置力 離れたコンテンツ区切り位置ほど重要でないように、各コンテンツ 区切り位置の情報に重み付けをすることにより、コンテンツの内容的な切れ目を複数 まとめたものが長時間にわたるものの場合、再生再開位置力 コンテンツの再生を中 断した位置力 遡りすぎるのを防止し、適切な位置力 再生を再開できる。  [0012] Further, in the content playback apparatus of the present invention, the restart position determination unit may be configured such that the interval between the content break position and the content break position adjacent to the front of the content break position does not exceed a predetermined threshold. The reproduction restart position information is generated with reference to weighting information set in accordance with the time distance between the position where the reproduction of the content is interrupted and the position of the specific break of the content. According to the above configuration, for example, a plurality of content breaks can be collected for a long time by weighting the information of each content break position so that it is not as important as the content break position that is farther away from the interruption position. In the case of a wide range, the position force at which playback is resumed Position power at which content playback was interrupted can be prevented from going back too far, and appropriate position force playback can be resumed.
[0013] また、本発明のコンテンツ再生装置は、前記再開位置判断手段が、ユーザを識別 するためのユーザ識別子に応じて前記再生再開位置情報を生成するものである。上 記構成によれば、複数のユーザが同一のコンテンツを視聴する場合でも、再生再開 位置がユーザ毎に決定されるため、各ユーザに対応する適切な位置力 コンテンツ の再生を再開できる。  [0013] In the content playback apparatus of the present invention, the restart position determination unit generates the playback restart position information according to a user identifier for identifying a user. According to the above configuration, even when a plurality of users view the same content, the playback restart position is determined for each user, so that it is possible to restart playback of appropriate positional content corresponding to each user.
[0014] また、本発明のコンテンツ再生装置は、中断したコンテンツの再生を再開する機能 を有するコンテンツ再生装置であって、外部からの入力を受け取る入力手段と、前記 入力手段が受け取ったコンテンツ再生中断要求に応じて、コンテンツの再生を中断 した位置を示す中断位置情報を生成する中断位置情報生成手段と、前記入力手段 が受け取ったコンテンツ再生中断要求に応じて、前記中断位置情報と、コンテンツの 内容的な切れ目を示すコンテンツ区切り位置情報とに基づいて、コンテンツの再生を 再開する位置を示す再生再開位置情報を生成する再開位置判断手段と、前記入力 手段が受け取ったコンテンツ再生再開要求に応じて、前記再生再開位置情報に基 づいて、コンテンツの再生を再開させる再生再開制御手段と、を備える。上記構成に よれば、再生再開時に煩雑な処理を行うことがなぐ中断したコンテンツの再生を、内 容的に適切な位置力 再開できるため、円滑に視聴を再開することができる。 [0014] Further, the content playback device of the present invention is a content playback device having a function of restarting playback of the interrupted content, the input unit receiving external input, and the content playback interruption received by the input unit In response to the request, the interruption position information generating means for generating interruption position information indicating the position where the reproduction of the content was interrupted, and in response to the content reproduction interruption request received by the input means, the interruption position information and the content of the content In response to the content playback restart request received by the input means, the restart position determining means for generating the playback restart position information indicating the position where the playback of the content is restarted based on the content break position information indicating a specific break, Playback restart control means for restarting playback of content based on the playback restart position information. According to the above configuration, playback of an interrupted content that does not require complicated processing when playback is resumed can be performed. Since the appropriate position force can be resumed, viewing can be resumed smoothly.
[0015] また、本発明のコンテンツ再生装置は、前記コンテンツ区切り位置情報が、コンテン ッに含まれる字幕情報の提示開始時刻及び提示終了時刻で表されるものである。上 記構成によれば、既存の字幕情報を用いて、再生再開位置を適切に設定できる。  [0015] In the content reproduction apparatus of the present invention, the content delimiter position information is represented by a presentation start time and a presentation end time of caption information included in the content. According to the above configuration, the playback resume position can be appropriately set using the existing caption information.
[0016] また、本発明のコンテンツ再生装置は、前記コンテンツ区切り位置情報が、セグメン テーシヨンメタデータまたはセグメンテーショングループメタデータに係る Media Ref Ti meの値及び Media Ref Timeの値と Media Durationの値を力卩算したもので表されるも のである。また、本発明のコンテンツ再生装置は、前記コンテンツ区切り位置情報が 、コンテンツの音声データの強弱に係る切り替わりタイミングのタイムスタンプで表さ れるものである。また、本発明のコンテンツ再生装置は、前記コンテンツ区切り位置情 報力 コンテンツの映像データのシーンに係る切り替わりタイミングのタイムスタンプで 表されるものである。上記構成によれば、上記各種情報を用いて、再生再開位置を 適切に設定できる。  [0016] Further, in the content reproduction device of the present invention, the content delimiter position information includes a value of Media Ref Time, a value of Media Ref Time, and a value of Media Duration related to segmentation metadata or segmentation group metadata. It is expressed by power calculation. In the content reproduction apparatus of the present invention, the content delimiter position information is represented by a time stamp of the switching timing related to the strength of the audio data of the content. Further, the content reproduction apparatus of the present invention is represented by a time stamp of the switching timing related to the scene of the content segment position information power content video data. According to the above configuration, it is possible to appropriately set the playback restart position using the various information.
[0017] また、本発明のコンテンツ再生装置は、前記コンテンツ区切り位置情報が、予めサ ーバに設定されており、当該サーバから取得されるものである。上記構成によれば、 事業者等が指定したコンテンツ区切り位置情報を利用できる。 発明の効果  [0017] Further, in the content reproduction apparatus of the present invention, the content delimiter position information is set in advance in a server and is acquired from the server. According to the above configuration, the content delimiter position information specified by the business operator can be used. The invention's effect
[0018] 本発明によれば、過去の視聴内容をユーザに的確に想起させ、続き部分の視聴を 円滑に再開することができる。  [0018] According to the present invention, it is possible to cause the user to accurately recall past viewing contents and smoothly resume viewing of the subsequent portion.
図面の簡単な説明  Brief Description of Drawings
[0019] [図 1]本発明の実施の形態 1におけるコンテンツ再生装置の内部構成を示す図  FIG. 1 is a diagram showing an internal configuration of a content reproduction device according to Embodiment 1 of the present invention.
[図 2]本発明の実施の形態 1におけるコンテンツ再生装置の再生再開位置判断処理 手順を示すフローチャート  FIG. 2 is a flowchart showing a procedure for determining a playback restart position of the content playback device in Embodiment 1 of the present invention.
[図 3]本発明の実施の形態 1におけるコンテンツ再生装置で使用するコンテンツ区切 り位置情報リストとコンテンツトリガー情報のデータ構造を概念的に示す図  FIG. 3 is a diagram conceptually showing a data structure of a content delimiter position information list and content trigger information used in the content playback device in Embodiment 1 of the present invention.
[図 4]コンテンツ区切り位置情報リストが表すコンテンツの区切りの構成を模式的に示 す図  [Fig.4] Diagram showing the configuration of content delimiters represented by the content delimiter position information list
[図 5]本発明の実施の形態 2におけるコンテンツ再生装置で使用するコンテンツトリガ 一情報のデータ構造を概念的に示す図 FIG. 5 is a content trigger used in the content playback device in Embodiment 2 of the present invention. A diagram conceptually showing the data structure of a piece of information
[図 6]本発明の実施の形態 2におけるコンテンツ再生装置の再生再開位置判断処理 手順を示すフローチャート  FIG. 6 is a flowchart showing a playback restart position determination process procedure of the content playback apparatus in Embodiment 2 of the present invention.
[図 7]本発明の実施の形態 2におけるコンテンツ再生装置で使用する中断時間判断 テーブルのデータ構造を概念的に示す図  FIG. 7 is a diagram conceptually showing the data structure of an interruption time determination table used in the content reproduction device in Embodiment 2 of the present invention.
[図 8]コンテンツ区切り位置情報リストが表すコンテンツの区切りの構成を模式的に示 す図  [Fig.8] Diagram showing the configuration of content delimiters represented by the content delimiter position information list
[図 9]本発明の実施の形態 3におけるコンテンツ再生装置の再生再開位置判断処理 手順を示すフローチャート  FIG. 9 is a flowchart showing a playback restart position determination process procedure of the content playback apparatus in Embodiment 3 of the present invention.
[図 10]本発明の実施の形態 3におけるコンテンツ再生装置で使用するコンテンツ区 切り区間情報リストのデータ構造を概念的に示す図  FIG. 10 is a diagram conceptually showing the data structure of a content segmentation section information list used in the content reproduction device in Embodiment 3 of the present invention.
[図 11]コンテンツ区切り区間情報リストが表すコンテンツの区切り及び区間の構成を 模式的に示す図  [FIG. 11] A diagram schematically showing the structure of the content breaks and sections represented by the content break section information list
[図 12]コンテンツ区切り区間情報リストが表すコンテンツの区切り及び区間の構成を 模式的に示す図  [FIG. 12] A diagram schematically showing the structure of the content breaks and sections represented by the content break section information list
[図 13]本発明の実施の形態 4におけるコンテンツ再生装置の再生再開位置判断処 理手順の一部を示すフローチャート  FIG. 13 is a flowchart showing a part of a playback restart position determination processing procedure of the content playback apparatus in Embodiment 4 of the present invention.
[図 14]コンテンツ区切り区間情報リストが表すコンテンツの区切り及び区間の構成を 模式的に示す図  [FIG. 14] A diagram schematically showing the structure of content breaks and sections represented by the content break section information list
[図 15]コンテンツ区切り区間情報リストが表すコンテンツの区切り及び区間の構成を 模式的に示す図  [FIG. 15] A diagram schematically showing the structure of content breaks and sections represented by the content break section information list
[図 16]本発明の実施の形態 5におけるコンテンツ再生装置で使用するコンテンツトリ ガー情報のデータ構造を概念的に示す図  FIG. 16 is a diagram conceptually showing a data structure of content trigger information used in the content reproduction device in the fifth embodiment of the present invention.
符号の説明 Explanation of symbols
1 入力部  1 Input section
2 データ入力部  2 Data input section
3 出力部  3 Output section
4 出力制御部 5 視聴管理部 4 Output controller 5 Viewing Manager
6 再開位置判断部  6 Resume position determination unit
10 コンテンツ再生装置  10 Content playback device
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0021] 以下、本発明の実施形態におけるコンテンツ再生装置について図面を用いて説明 する。 Hereinafter, a content reproduction apparatus according to an embodiment of the present invention will be described with reference to the drawings.
[0022] 本発明の実施の形態におけるコンテンツ再生装置は、録画されたテレビ番組や、 D VDなどの記録メディアで提供される映像データ、ネットワークを介して提供される VO D映像など、あらゆる映像データの再生が可能である（以下、これらの映像データをコ ンテンッと総称する）。また、このコンテンツ再生装置は、コンテンツの再生を中断す る場合は中断位置を記録し、再生再開時にはコンテンッ区切り位置情報ゃコンテン ッ区切り区間情報を取得し、適切な再生再開位置を判断して再生を再開する。  [0022] The content playback apparatus according to the embodiment of the present invention can perform any video data such as a recorded television program, video data provided on a recording medium such as DVD, and VOD video provided via a network. (Hereinafter, these video data are collectively referred to as “content”). In addition, this content playback device records the interrupt position when interrupting the playback of content, acquires content break position information and content break section information when resuming playback, and determines the appropriate play resume position to play back To resume.
[0023] [実施の形態 1]  [Embodiment 1]
図 1は、本発明の実施の形態 1におけるコンテンツ再生装置の内部構成を示す図 である。コンテンツ再生装置 10は、中断したコンテンツの再生を再開する機能を有し 、外部からの入力を受け取る入力部 1と、コンテンツデータ等を外部より取得するデ ータ入力部 2と、入力部 1が受け取ったコンテンツ再生中断要求に応じて、コンテンツ の再生を中断した位置を示す中断位置情報を生成する出力制御部 4と、出力制御 部 4が生成した情報等を管理する視聴管理部 5と、入力部 1が受け取ったコンテンツ 再生再開要求に応じて、前記中断位置情報と、コンテンツの内容的な切れ目を示す コンテンツ区切り位置情報とに基づいて、コンテンツの再生を再開する位置を示す再 生再開位置情報を生成する再開位置判断部 6と、を備え、出力制御部 4が、前記再 生再開位置情報に基づいて、コンテンツの再生を再開させ、出力部 3が出力制御部 4の制御によりコンテンツを再生出力するものである。  FIG. 1 is a diagram showing an internal configuration of the content reproduction apparatus according to Embodiment 1 of the present invention. The content playback device 10 has a function of restarting playback of the interrupted content, and includes an input unit 1 that receives input from the outside, a data input unit 2 that acquires content data and the like from the outside, and an input unit 1 In response to the received content reproduction interruption request, the output control unit 4 that generates interruption position information indicating the position where the reproduction of the content was interrupted, the viewing management unit 5 that manages the information generated by the output control unit 4, and the input In response to the content reproduction resume request received by the section 1, reproduction resume position information indicating a position where the reproduction of the content is resumed based on the interruption position information and the content separation position information indicating the content break. A restart position determination unit 6 for generating the content, and the output control unit 4 restarts the reproduction of the content based on the playback restart position information, and the output unit 3 outputs the output control unit. The content is reproduced and output under the control of 4.
[0024] 入力部 1は、コンテンツ再生中断要求、コンテンツ再生再開要求等のユーザ操作に 対応する入力信号を受け取り、出力制御部 4へ送出する。入力信号としては、コンテ ンッを識另 IJするための識另 IJ子 (コンテンツ ID)と、コンテンツを視 ¾するためのビデ才 操作を識別するための信号がある。ユーザ操作としては、「再生」、「停止 (再生中断)」 、「再生再開」などがある。入力を行う具体的な手段としては、リモコン操作や本体の 操作ボタン、マウス、キーボート、リモコンの上下キーを利用して画面上のアイコンを 選択したり、音声により選択したりするなどの方法が考えられるが、それらに限定され るものではない。 The input unit 1 receives an input signal corresponding to a user operation such as a content reproduction interruption request or a content reproduction resumption request, and sends it to the output control unit 4. The input signal includes an identification IJ child (content ID) for identifying the content and a signal for identifying a bidet operation for viewing the content. User operations include “play” and “stop (playback interruption)” , “Resume playback”. As specific means for input, methods such as remote control operation, operation buttons on the main unit, mouse, keyboard, and up / down keys on the remote control can be used to select icons on the screen or to select by voice. However, it is not limited to them.
[0025] データ入力部 2は、コンテンツデータ及びコンテンツの内容や属性に関わる情報を 外部より取得する。コンテンツデータの例としては、前述の通り、録画されたテレビ番 組や、 DVDなどの記録メディアで提供される映像データ、ネットワークを介して提供 される VOD映像などがある。それらのデータ及び情報は装置内の蓄積装置（図示省 略）に蓄積されていてもよいし、ネットワークを介して接続する蓄積装置に蓄積されて いてもよい。また、ネットワークを介してストリーミングにより供給されてもよいし、 DVD やフラッシュメモリカードのような記録メディア力も供給されてもよい。つまり、コンテン ッデータの存在する場所やデータフォーマットなどはなんら限定されるものではない  [0025] The data input unit 2 obtains content data and information related to the content and attributes of the content from the outside. Examples of content data include the recorded TV program, video data provided on a recording medium such as a DVD, and VOD video provided via a network, as described above. Such data and information may be stored in a storage device (not shown) in the device, or may be stored in a storage device connected via a network. Further, it may be supplied by streaming via a network, or a recording medium power such as a DVD or a flash memory card may be supplied. In other words, the location where the content data exists and the data format are not limited.
[0026] 出力部 3は、出力制御部 4の指示に従って、データ入力部 2で取得した、指定され たコンテンツを再生出力する。 The output unit 3 reproduces and outputs the designated content acquired by the data input unit 2 in accordance with an instruction from the output control unit 4.
[0027] 出力制御部 4は、入力部 1から出力される入力信号に基づいて、コンテンツの再生 、停止、再生再開を制御する。まず、入力信号が「再生」を示す場合、出力制御部 4 は、識別子に該当するコンテンツをデータ入力部 2から取得して出力部 3に出力し、 再生を開始する。次に、入力信号が「停止」である場合 (すなわち、コンテンツ再生中 断要求を受け取った場合）、出力制御部 4は、コンテンツの再生を停止し、再生して V、たコンテンッの識別子と中断位置とから中断位置情報を生成し、生成した中断位 置情報をコンテンツトリガー情報として、視聴管理部 5へ送出する。更に、入力信号が 「再生再開」である場合 (すなわち、コンテンツ再生再開要求を受け取った場合)、出 力制御部 4は、指定された識別子に該当するコンテンツのコンテンツトリガー情報を 視聴管理部 5から取得して再開位置判断部 6へ提供し、再生再開位置情報を要求す る。そして、出力制御部 4は、再開位置判断部 6から取得した再生再開位置情報に含 まれるコンテンツ識別子をデータ入力部 2へ送出して、該当するコンテンツを取得し、 再生再開位置情報に含まれる再生再開位置力 コンテンツの再生を開始し、出力部 3へ出力する。 [0027] Based on the input signal output from the input unit 1, the output control unit 4 controls the playback, stop, and restart of the content. First, when the input signal indicates “reproduction”, the output control unit 4 acquires the content corresponding to the identifier from the data input unit 2 and outputs it to the output unit 3 to start reproduction. Next, when the input signal is “stop” (that is, when a content playback interruption request is received), the output control unit 4 stops the playback of the content, plays back the content identifier of V, and interrupts it. The interruption position information is generated from the position, and the generated interruption position information is transmitted to the viewing management unit 5 as content trigger information. Furthermore, when the input signal is “restart playback” (that is, when a content playback restart request is received), the output control unit 4 receives content trigger information of the content corresponding to the specified identifier from the viewing management unit 5. It is acquired and provided to the restart position determination unit 6 to request playback restart position information. Then, the output control unit 4 sends the content identifier included in the reproduction resume position information acquired from the resume position determination unit 6 to the data input unit 2, acquires the corresponding content, and is included in the reproduction resume position information. Playback restart position Starts playback of content and outputs Output to 3.
[0028] 視聴管理部 5は、出力制御部 4で生成されたコンテンツトリガー情報を記憶、管理し 、出力制御部 4の要求に応じて、該当するコンテンツトリガー情報を検索して提供す る。コンテンツトリガー情報は、コンテンツを一意に判別できる識別子と、コンテンツ開 始時刻からのオフセット時間などコンテンツ中の位置を特定できる情報を含む。また、 中断したことを示すフラグを保持するようにしてもよい。  [0028] The viewing management unit 5 stores and manages the content trigger information generated by the output control unit 4, and searches for and provides the corresponding content trigger information in response to a request from the output control unit 4. The content trigger information includes an identifier that can uniquely identify the content, and information that can specify a position in the content such as an offset time from the content start time. In addition, a flag indicating that the operation has been interrupted may be held.
[0029] 再開位置判断部 6は、中断位置情報を出力制御部 4から取得し、中断位置情報に 含まれるコンテンツ識別子に基づいて、該当するコンテンツをデータ入力部 2から取 得する。そして、再開位置判断部 6は、コンテンツからコンテンツ区切り位置情報を取 得し、中断位置情報と比較して再生再開位置を判断する。判断結果は、再生再開位 置情報として出力制御部 4へ送出される。  The resume position determination unit 6 acquires the interruption position information from the output control unit 4, and acquires the corresponding content from the data input unit 2 based on the content identifier included in the interruption position information. Then, the restart position determination unit 6 obtains the content break position information from the content and determines the playback restart position by comparing with the interruption position information. The determination result is sent to the output control unit 4 as playback resume position information.
[0030] 尚、本実施の形態では、デジタル放送の字幕情報を用いてコンテンツ区切り位置 情報を抽出する例について説明する。デジタル放送の字幕情報とは、映像にスーパ 一インポーズして字幕を表示するための情報であり、表示開始時刻や表示期間、表 示するテキストデータや表示位置、テキストの色やフォントなどが記述されている。再 生再開位置の判断処理にっ 、ては後述する。  [0030] In the present embodiment, an example will be described in which content break position information is extracted using caption information of digital broadcasting. Digital broadcasting subtitle information is information for displaying subtitles by superimposing them on the video. Describes the display start time and display period, the text data to be displayed and the display position, text color and font, etc. Has been. The process for determining the resuming position will be described later.
[0031] 次に、上記構成のコンテンツ再生装置の動作について説明する。  Next, the operation of the content reproduction apparatus having the above configuration will be described.
[0032] 図 2は、本発明の実施の形態 1におけるコンテンツ再生装置の再生再開位置判断 処理手順を示すフローチャートである。はじめに、コンテンツ再生装置 10の再開位置 判断部 6は、取得したすべての字幕情報カゝら表示開始時刻のタイムスタンプを抽出し 、「区切り時刻」としてコンテンツ区切り位置情報リストを生成する (ステップ S101)。次 に、再開位置判断部 6は、別途取得した中断位置情報の中断位置から遡って最も近 接するコンテンツ区切り位置を前述のコンテンツ区切り位置情報リストから検索する（ ステップ S 102)。  FIG. 2 is a flowchart showing a playback restart position determination processing procedure of the content playback device in Embodiment 1 of the present invention. First, the restart position determination unit 6 of the content playback device 10 extracts the time stamps of the display start time from all the acquired subtitle information catalogs, and generates a content break position information list as “break time” (step S101). . Next, the restart position determination unit 6 searches the content break position information list that is closest to the interrupt position of the interrupt position information acquired separately from the content break position information list (step S102).
[0033] 次に、再開位置判断部 6は、検索したコンテンツ区切り位置情報の区切り時刻を再 生再開位置情報の再生再開位置（時刻）として登録し (ステップ S103)、再生再開位 置情報を出力制御部 4へ出力する。  [0033] Next, the resume position determination unit 6 registers the retrieved content break position information break time as a play resume position (time) of the play resume position information (step S103), and outputs the play resume position information. Output to control unit 4.
[0034] 図 3は、本発明の実施の形態 1におけるコンテンツ再生装置で使用するコンテンツ 区切り位置情報リストとコンテンツトリガー情報のデータ構造を概念的に示す図である[0034] FIG. 3 shows content used in the content reproduction apparatus according to Embodiment 1 of the present invention. It is a figure which shows notionally the data structure of a division | segmentation position information list and content trigger information.
。また、図 4は、コンテンツ区切り位置情報リストが表すコンテンツの区切りの構成を模 式的に示す図である。例えば、図 3 (a)に示すようなコンテンツ区切り位置情報を有す るコンテンツにおいて、開始力 33分 30秒 00で再生を中断した場合（図 4参照）、本 実施の形態のコンテンツ再生装置では、当該中断位置から最も近接する識別子じの コンテンツ区切り位置が再生再開位置として登録される。つまり、再生を再開する場 合は識別子 Cの区切り時刻 32分 00秒 00から再生が開始される。 . FIG. 4 is a diagram schematically showing a configuration of content delimiters represented by the content delimiter position information list. For example, in the case of content having content delimiter position information as shown in FIG. 3 (a), when playback is interrupted with a starting force of 33 minutes 30 seconds 00 (see FIG. 4), the content playback device of this embodiment The content delimiter position closest to the interruption position is registered as the reproduction restart position. In other words, when resuming playback, playback starts from the break time of identifier C, 32 minutes 00 seconds 00.
[0035] 尚、コンテンツ区切り位置情報の抽出には、アナログ放送に含まれる字幕情報を用 いてもよい。また、同様にサーバ型放送などで用いられるシーン情報を記載したセグ メントインフォメーション（Segment Information)や、シーンを繋げたシナリオ情報を記 載したセグメントグループインフォメーション（Segment Group Information)を利用して もよい。更に、コンテンツ区切り位置情報の抽出に、コンテンツの音声を抽出してその 強弱を利用したり、映像を抽出してその変化を利用したりしてもよい。  [0035] It should be noted that subtitle information included in analog broadcasting may be used for extracting content delimiter position information. Similarly, segment information (Segment Information) describing scene information used in server-type broadcasts or segment group information (Segment Group Information) describing scenario information connecting scenes may be used. Furthermore, for extracting the content delimiter position information, the audio of the content may be extracted and its strength may be used, or the video may be extracted and the change may be used.
[0036] 尚、コンテンツ区切り位置情報は、コンテンツ識別子に基づいて遠隔のサーバなど 外部から取得するようにしてもよい。また、コンテンツ区切り位置情報を、コンテンツ毎 または全コンテンツ共通として、ユーザに入力してもらうようにしてもよい。  Note that the content delimiter position information may be acquired from the outside such as a remote server based on the content identifier. Further, the content delimiter position information may be input by the user for each content or for all content.
[0037] 以上のように、本発明の実施の形態 1におけるコンテンツ再生装置によれば、コン テンッの再生中断後に、中断時に表示されていた字幕の表示開始時刻まで遡って、 内容的に適切な位置力もコンテンツの再生を再開することができる。例えば、ドラマな どの場合、字幕に表示されたセリフの途中で再生を中断しても、再開する時はそのセ リフの最初の部分からの映像が再生されるので、ユーザは過去の視聴内容を的確に 想起して続き部分を視聴することができる。  [0037] As described above, according to the content playback apparatus of Embodiment 1 of the present invention, after content playback is interrupted, the content is appropriately traced back to the display start time of the subtitles displayed at the time of the interrupt. Positional power can also resume content playback. For example, in the case of a drama, even if playback is interrupted in the middle of a line displayed in the subtitle, the video from the first part of the line is played back when resuming, so the user can view the past viewing contents. You can recall it accurately and watch the rest.
[0038] [実施の形態 2]  [0038] [Embodiment 2]
次に、本発明の実施の形態 2におけるコンテンツ再生装置について説明する。尚、 実施の形態 2のコンテンツ再生装置の内部構成は、実施の形態 1のそれと同じである ため説明を省略する。  Next, a content reproduction apparatus according to Embodiment 2 of the present invention will be described. Note that the internal configuration of the content reproduction apparatus of the second embodiment is the same as that of the first embodiment, and thus the description thereof is omitted.
[0039] 但し、実施の形態 2では、再開位置判断部 6が再生の中断時間の長短に応じて再 生再開位置を変更する点が、実施の形態 1と異なる。 [0040] 図 5は、本発明の実施の形態 2におけるコンテンツ再生装置で使用するコンテンツト リガ一情報のデータ構造を概念的に示す図である。図に示すように、実施の形態 1に おけるコンテンツトリガー情報に、コンテンツの再生を中断した時刻情報を追加したも のである。尚、中断時刻は、視聴中断時と視聴再開時の時間差が判ればよぐ視聴 中断時における現在時刻を採用してもよいし、システム時間を採用してもよい。 However, the second embodiment is different from the first embodiment in that the restart position determination unit 6 changes the playback restart position according to the length of the playback interruption time. FIG. 5 is a diagram conceptually showing a data structure of the content trigger information used in the content reproduction device in the second embodiment of the present invention. As shown in the figure, the time information at which the reproduction of the content is interrupted is added to the content trigger information in the first embodiment. The interruption time may be the current time at the time of the viewing interruption or the system time as long as the time difference between the viewing interruption and the resumption of viewing is known.
[0041] 再開位置判断部 6は、コンテンツ区切り位置情報と中断位置情報とを比較して再生 再開位置を判断するが、コンテンツの再生を中断している時間である中断時間（コン テンッの再生を中断した時点（コンテンツ再生中断要求を受けた時点）からコンテン ッ再生再開要求を受けた時点までの経過時間）の長短により重み付けし、その重み 付けを考慮して再生再開位置を判断する。  [0041] The restart position determination unit 6 compares the content break position information and the interrupt position information to determine the playback restart position. The restart position determination unit 6 determines an interrupt time (content playback) that is a time during which the content playback is interrupted. Weighting is based on the length of time from the point of interruption (when the content playback is interrupted) to the time when the content playback restart request is received), and the playback restart position is determined in consideration of the weighting.
[0042] 次に、上記構成のコンテンツ再生装置の動作について説明する。尚、以下でもコン テンッ区切り位置情報の抽出元として字幕情報を用いる例について説明する。  Next, the operation of the content reproduction apparatus having the above configuration will be described. Hereinafter, an example in which caption information is used as an extraction source of content break position information will be described.
[0043] 図 6は、本発明の実施の形態 2におけるコンテンツ再生装置の再生再開位置判断 処理手順を示すフローチャートである。はじめに、再開位置判断部 6は、取得したす ベての字幕情報カゝら表示開始時刻のタイムスタンプを抽出し、「区切り時刻」としてコ ンテンッ区切り位置情報リストを生成する (ステップ S201)。次に、再開位置判断部 6 は、前述のコンテンツトリガー情報に基づいて算出される中断時間と、再生再開時に 遡る時間を設定した中断時間判断テーブルとから「修正時間」情報を取得する (ステ ップ S 202)。  [0043] FIG. 6 is a flowchart showing a playback restart position determination processing procedure of the content playback apparatus in Embodiment 2 of the present invention. First, the restart position determination unit 6 extracts the time stamp of the display start time from all the acquired caption information, and generates a content break position information list as the “break time” (step S201). Next, the resume position determination unit 6 acquires “correction time” information from the suspension time calculated based on the above-described content trigger information and the suspension time determination table in which the time traced back when the reproduction is resumed (step). P S 202).
[0044] 図 7は、本発明の実施の形態 2におけるコンテンツ再生装置で使用する中断時間 判断テーブルのデータ構造を概念的に示す図である。中断時間判断テーブルは、コ ンテンッの再生を中断した時刻から視聴を再開する時刻までの経過時間である中断 時間と、再生再開位置を遡って修正する範囲を示す「修正時間」との対応テーブル である。中断時間判断テーブルは、事前に設定されていてもよいし、サーバ等からコ ンテンッごとに取得してもよい。また、ユーザに入力させるなど、設定方法に関してな んら限定されるものではな 、。  FIG. 7 is a diagram conceptually showing a data structure of the interruption time determination table used in the content reproduction device in the second embodiment of the present invention. The interruption time determination table is a correspondence table between the interruption time, which is the elapsed time from the time when content playback is interrupted to the time when viewing is resumed, and the “correction time” that indicates the range for retroactively correcting the playback restart position. is there. The interruption time determination table may be set in advance or may be acquired for each content from a server or the like. Also, there is no limitation on the setting method, such as letting the user input.
[0045] 次に、再開位置判断部 6は、中断位置力 遡って最も近接するコンテンツ区切り位 置を、コンテンツ区切り位置情報リストから検索する (ステップ S203)。そして、再開位 置判断部 6は、中断位置力 当該コンテンツ区切り位置までの時間が先に算出した「 修正時間」の範囲内力否かを判断する（ステップ S204)。修正時間の範囲内にない 場合、再開位置判断部 6は、検索したコンテンツ区切り位置情報の区切り時刻を再生 再開位置情報に登録して (ステップ S205)、処理を終了する。 [0045] Next, the restart position determination unit 6 searches the content break position information list for the closest content break position retroactively from the content break position information list (step S203). And resume position The position determination unit 6 determines whether or not the force to the interruption position force is within the range of the “correction time” calculated in advance to the content separation position (step S204). If it is not within the correction time range, the restart position determination unit 6 registers the searched time of the content break position information in the play resume position information (step S205), and ends the process.
[0046] 一方、ステップ S204で修正時間の範囲内にある場合、再開位置判断部 6は、検索 したコンテンツ区切り位置の直前のコンテンツ区切り位置情報を検索し (ステップ S20 6)、再度、中断位置力 この直前のコンテンツ区切り位置までの時間が先に算出し た「修正時間」の範囲内力否かを判断する (ステップ S207)。  [0046] On the other hand, if it is within the correction time range in step S204, the restart position determination unit 6 searches for the content break position information immediately before the searched content break position (step S20 6), and again determines the interruption position force. It is determined whether or not the time until the immediately preceding content separation position is within the range of the “correction time” previously calculated (step S207).
[0047] 「修正時間」の範囲内にある場合、この直前の区切り位置を新たな「区切り時刻」と する（ステップ S208)。そして、ステップ S206に戻り、上記の手順を繰り返す。一方、 ステップ S207において範囲内にない場合、再開位置判断部 6は、検出したコンテン ッ区切り位置情報の区切り時刻を再生再開位置に登録し (ステップ S209)、再生再 開位置情報を出力制御部 4へ出力する。  If it is within the range of “correction time”, the immediately preceding break position is set as a new “break time” (step S208). Then, the process returns to step S206 and the above procedure is repeated. On the other hand, if it is not within the range in step S207, the restart position determination unit 6 registers the detected break time of the content break position information in the play resume position (step S209), and outputs the play resume position information to the output control unit 4 Output to.
[0048] 図 8は、コンテンツ区切り位置情報リストが表すコンテンツの区切りの構成を模式的 に示す図である。例えば、開始力も 33分 30秒 00で再生を中断した場合、本実施の形 態のコンテンツ再生装置では、同じコンテンツであっても、中断後の経過時間が 50分 の場合は識別子 Cの区切り時刻 32分 00秒 00が再生再開位置として登録されるが（図 8 (a)参照）、中断後の経過時間が 3日の場合は識別子 Bの区切り時刻 29分 00秒 00が 再生再開位置として登録される（図 8 (b)参照)。  FIG. 8 is a diagram schematically showing a configuration of content delimiters represented by the content delimiter position information list. For example, if playback is interrupted with a start force of 33 minutes 30 seconds 00, the content playback device of this embodiment will use the same content, but if the elapsed time after the interruption is 50 minutes, the identifier C separator time 32 minutes 00 seconds 00 is registered as the playback resume position (see Fig. 8 (a)), but when the elapsed time after the interruption is 3 days, the identifier B break time 29 minutes 00 seconds 00 is registered as the playback resume position (See Fig. 8 (b)).
[0049] これは、図 7の中断時間判断テーブルに示すように、中断後の経過時間が長いほ ど再生再開時に遡る修正時間を長く設定しているためである。  [0049] This is because, as shown in the interruption time determination table of FIG. 7, the longer the elapsed time after interruption, the longer the correction time that goes back when resuming playback.
[0050] 以上のように、本発明の実施の形態 2におけるコンテンツ再生装置によれば、再生 の中断時間に応じて、中断後のコンテンツの再生再開位置を変更することができる。 例えば、中断時点力 の経過時間が長くなればなるほど以前の視聴内容は忘れ去ら れている可能性が大きいが、中断時間の長さに応じて遡る時間を長くすることにより、 ユーザは過去の視聴内容を的確に想起して続き部分を視聴することができる。  [0050] As described above, according to the content playback apparatus of Embodiment 2 of the present invention, the playback restart position of the content after the interruption can be changed according to the playback interruption time. For example, the longer the elapsed time of the interruption time force, the more likely that the previous viewing content has been forgotten, but by increasing the time to go back according to the length of the interruption time, the user can It is possible to watch the following part with a precise recall.
[0051] [実施の形態 3]  [0051] [Embodiment 3]
次に、本発明の実施の形態 3におけるコンテンツ再生装置について説明する。尚、 実施の形態 3のコンテンツ再生装置の内部構成は、実施の形態 1のそれと同じである ため説明を省略する。 Next, a content reproduction apparatus according to Embodiment 3 of the present invention will be described. still, Since the internal configuration of the content reproduction apparatus of the third embodiment is the same as that of the first embodiment, description thereof is omitted.
[0052] 但し、実施の形態 3では、中断したコンテンツの再生を再開する際、コンテンツ区切 り位置情報に、区切り位置からの任意の状態の継続時間を表す"有効時間"情報を 加えた「コンテンツ区切り区間情報」を用いて再生再開位置の判断を行う点が、実施 の形態 1及び 2と異なる。  [0052] However, in Embodiment 3, when the reproduction of the interrupted content is resumed, "contents" in which "valid time" information indicating the duration of an arbitrary state from the break position is added to the content break position information. The difference from Embodiments 1 and 2 is that the playback restart position is determined using “separation section information”.
[0053] 次に、上記構成のコンテンツ再生装置の動作について説明する。尚、以下でもコン テンッ区切り区間情報の抽出元として字幕情報を用いる例について説明する。  Next, the operation of the content playback apparatus having the above configuration will be described. In the following, an example in which caption information is used as an extraction source of content segmentation section information will be described.
[0054] 図 9は、本発明の実施の形態 3におけるコンテンツ再生装置の再生再開位置判断 処理手順を示すフローチャートである。はじめに、コンテンツ再生装置 10の再開位置 判断部 6は、取得した字幕情報力 表示開始時刻のタイムスタンプと表示時間とを抽 出し、それぞれを「区切り時刻」と「有効時間」として、コンテンツ区切り区間情報リスト を生成する (ステップ S301)。尚、コンテンツ区切り区間は、区切り時刻から区切り時 刻 +有効時間で表される時刻までの時間で定義される。これ〖こより、中断された位置 力 任意の字幕が表示されている時間 (即ち、有効時間）内であった力否かに応じて 、再生再開位置の設定を変更することが可能となる。次に、再開位置判断部 6は、別 途取得した中断位置情報の中断位置力 遡って最も近接するコンテンツ区切り区間 を、コンテンツ区切り区間情報リストから検索する (ステップ S302)。  FIG. 9 is a flowchart showing a playback restart position determination processing procedure of the content playback apparatus in Embodiment 3 of the present invention. First, the restart position determination unit 6 of the content playback apparatus 10 extracts the acquired caption information display start time stamp and display time, and sets the time and display time as the “separation time” and “valid time” respectively. A list is generated (step S301). The content delimiter section is defined by the time from the delimiter time to the time represented by delimiter time + valid time. From this point, it is possible to change the setting of the playback resume position depending on whether or not the position power is interrupted within the time (that is, the effective time) during which any subtitle is displayed. Next, the resume position determination unit 6 searches the content break section information list for the closest content break section retroactively from the break position power of the separately obtained break position information (step S302).
[0055] 次に、再開位置判断部 6は、検索したコンテンツ区切り区間内に中断位置が含まれ る力否かを判断する (ステップ S303)。つまり、再生中断位置において字幕が表示さ れていた力否かを判断するもので、具体的には、該当するコンテンツ区切り区間情報 の（区切り時刻 +有効時間)で表される時刻 (即ち、字幕の表示終了時刻）が、再生 中断位置より後方であるカゝ否かで判断する。  [0055] Next, the restart position determination unit 6 determines whether or not a force that includes an interruption position within the searched content segmentation section (step S303). That is, it is determined whether or not the caption is displayed at the playback interruption position. Specifically, the time represented by (separation time + valid time) of the corresponding content separation section information (ie, caption The display end time is determined to be behind the playback interruption position.
[0056] コンテンツ区切り区間内に再生中断位置がある場合、検索されたコンテンツ区切り 区間の区切り時刻を再生再開位置に登録する (ステップ S304)。一方、コンテンツ区 切り区間外である場合、再開位置判断部 6は、当該コンテンツ区切り区間情報の区 切り時刻力 その直前のコンテンツ区切り区間情報の（区切り時刻 +有効時間）で表 される時刻と合致するか否かを確認する (ステップ S305)。合致する場合、その直前 のコンテンツ区切り区間情報の区切り時刻を再生再開位置情報の再生再開位置に 登録する (ステップ S306)。再開位置判断部 6は、登録された再生再開位置情報を 出力制御部 4へ出力する。尚、図 9のフローチャートに示す記号 Aについては、後述 する。 [0056] When there is a playback interruption position in the content segmentation section, the segmentation time of the searched content segmentation section is registered at the reproduction restart position (step S304). On the other hand, when it is outside the content segmentation section, the restart position determination unit 6 matches the time indicated by the segmentation time of the content segmentation section information (delimitation time + valid time) of the immediately preceding content segmentation section information. It is confirmed whether or not to perform (step S305). If it matches, immediately before Is registered in the playback restart position of the playback resume position information (step S306). The restart position determination unit 6 outputs the registered playback restart position information to the output control unit 4. The symbol A shown in the flowchart of FIG. 9 will be described later.
[0057] 図 10は、本発明の実施の形態 3におけるコンテンツ再生装置で使用するコンテン ッ区切り区間情報リストのデータ構造を概念的に示す図である。また、図 11と図 12は 、コンテンツ区切り区間情報リストが表すコンテンツの区切り及び区間の構成を模式 的に示す図である。例えば、図 10に示すようなコンテンツ区切り区間情報を有するコ ンテンッにおいて、開始力 42分 10秒 00で再生を中断した場合（図 11参照）、本実 施の形態のコンテンツ再生装置では、当該中断位置は、最も近接する識別子 Fのコ ンテンッ区切り区間内に含まれて 、るので、このコンテンツ区切り区間情報のコンテ ンッ区切り時刻 41分 00秒 00が再生再開位置として登録される。つまり、中断位置にお V、て字幕が表示されて!、た場合は、同じ字幕の表示開始時刻まで遡って再生が再 開される。  FIG. 10 is a diagram conceptually showing a data structure of a content segmentation section information list used in the content reproduction device according to Embodiment 3 of the present invention. FIG. 11 and FIG. 12 are diagrams schematically showing the configuration of content breaks and sections represented by the content break section information list. For example, in the case of content having content delimiter section information as shown in FIG. 10, when playback is interrupted at a start force of 42 minutes 10 seconds 00 (see FIG. 11), the content playback device of this embodiment does not Since the position is included in the content delimiter section of the closest identifier F, the content delimiter time 41 minutes 00 seconds 00 of this content delimiter section information is registered as the playback resume position. In other words, if V and subtitles are displayed at the interruption position !, playback will resume from the same subtitle display start time.
[0058] 一方、同じコンテンツを開始力も 39分 40秒 00で再生を中断した場合（図 12参照）、 当該中断位置は、最も近接する識別子 Eのコンテンツ区切り区間内には含まれてい ないので、識別子 Eのコンテンツ区切り区間情報の区切り時刻と、このコンテンツ区切 り区間の直前のコンテンツ区切り区間情報 (識別子 D)の区切り時刻 +有効時間で表 される時刻とが合致するか否かが判定される。この場合、 38分 00秒 00で合致するの で、識別子 Eのコンテンツ区切り区間情報のコンテンツ区切り時刻 38分 00秒 00が再 生再開位置として登録される。つまり、中断位置において字幕が表示されていない場 合は、直前に表示されていた字幕の表示終了時刻まで遡って再生が再開される。  [0058] On the other hand, when playback of the same content is interrupted at 39 minutes 40 seconds 00 (see Fig. 12), the interruption position is not included in the content delimiter section of the nearest identifier E. It is determined whether the break time of the content break section information of identifier E and the time represented by the break time of the content break section information (identifier D) immediately before this content break section + valid time match. . In this case, since it matches at 38 minutes 00 seconds 00, the content break time 38 minutes 00 seconds 00 of the content break section information of the identifier E is registered as the playback restart position. In other words, if no caption is displayed at the interruption position, playback is resumed retroactively to the display end time of the caption displayed immediately before.
[0059] ところで、図 10に示すように、識別子 Eは、有効時間（字幕表示時間） 0のコンテン ッ区切り区間を有するコンテンツ区切り区間情報である。つまり、字幕が表示されな い区間の区切り時刻を表すコンテンツ区切り区間情報である。  By the way, as shown in FIG. 10, the identifier E is content delimiter section information having a content delimiter section with a valid time (caption display time) of zero. That is, it is content delimiter section information indicating the delimiter time of a section in which no caption is displayed.
[0060] 尚、コンテンツ区切り区間情報の抽出には、アナログ放送に含まれる字幕情報を用 いてもよい。また、同様にサーバ型放送などで用いられるシーン情報を記載したセグ メントインフォメーション（Segment Information)を利用して、く Media Rel Time Point >を区切り時刻、 < Media Duration >を有効時間として採用してもよい。また、同様に サーバ型放送などで用いられるシーンを繋げたシナリオ情報を記載したセグメントグ ループインフォメーション（Segment Group Information)を利用して、く Media Rel Tim e Point>を区切り時刻、セグメントグループインフォメーションに含まれるすべてのセ グメントインフォメーションのく Media Duration >の和を有効時間として採用してもよ い。更に、コンテンツ区切り区間情報の抽出に、コンテンツの音声を抽出してその強 弱を利用したり、映像を抽出してその変化を利用したりしてもよい。例えば、無音区間 を検出し、その終了地点までをコンテンツ区切り区間情報の区切り時刻と有効時間と して採用することなどが考えられる。 [0060] It should be noted that subtitle information included in analog broadcasting may be used for extracting content delimiter section information. Similarly, using the segment information (Segment Information) describing scene information used in server-type broadcasts, the Media Rel Time Point > May be used as the delimiter time, and <Media Duration> may be used as the valid time. Similarly, using the segment group information (Segment Group Information) that describes the scenario information that connects scenes used in server-type broadcasts, etc., the Media Time Point Point> is included in the segment time and segment group information. The sum of the Media Duration> of all the segment information to be used may be used as the effective time. Furthermore, the content segmentation section information may be extracted by extracting the audio of the content and using its strength, or extracting the video and using the change. For example, it is conceivable to detect a silent section and use it as the delimiter time and valid time of the content delimiter section information up to the end point.
[0061] 尚、コンテンツ区切り区間情報は、コンテンツ識別子に基づいて遠隔のサーバなど 外部から取得するようにしてもよい。また、コンテンツ区切り位置情報を、コンテンツ毎 または全コンテンツ共通として、ユーザに入力してもらうようにしてもよい。  [0061] Note that the content delimiter section information may be acquired from the outside such as a remote server based on the content identifier. Further, the content delimiter position information may be input by the user for each content or for all content.
[0062] 以上のように、本発明の実施の形態 3におけるコンテンツ再生装置によれば、コン テンッの再生中断後に、中断時に表示されていた字幕の表示開始時刻まで遡って、 内容的に適切な位置力もコンテンツの再生を再開することができる。特に、実施の形 態 3では、再生を中断した位置において、字幕が表示されている場合はその字幕の 先頭から、また、字幕が表示されていない場合は直近の字幕の表示終了時刻まで遡 つて再生を再開するため、ユーザは過去の視聴内容を的確に想起して続き部分を視 聴することができる。尚、コンテンツ区切り区間情報に重み付けすることにより、中断 位置力も遡るコンテンツ区切り時刻を選択するようにしてもよい。例えば、字幕が表示 されていない時間が所定時間よりも長い場合は、前述の通り、直近の字幕の表示終 了時刻まで遡り（図 12 :Eに遡って再生を再開）、字幕が表示されていない時間が所 定時間よりも短い場合は、直近の字幕の表示開始時刻まで遡る（図 12 : Dに遡って 再生を再開）。これにより、ユーザは過去の視聴内容をより的確に想起して続き部分 を視¾することができる。  [0062] As described above, according to the content playback apparatus of Embodiment 3 of the present invention, after content playback is interrupted, the content is appropriately traced back to the display start time of the subtitles displayed at the time of the interrupt. Positional power can also resume content playback. In particular, in Embodiment 3, when subtitles are displayed at the position where playback was interrupted, the subtitles are displayed from the beginning, and when no subtitles are displayed, they are traced back to the last display end time of the subtitles. In order to resume playback, the user can recall the past viewing contents accurately and watch the subsequent part. It is also possible to select a content separation time that goes back to the interruption position by weighting the content separation section information. For example, if the subtitles are not displayed for a longer time than the specified time, as described above, the subtitles are displayed as far back as the last subtitle display end time (replaying back to E in Fig. 12). If there is no time shorter than the preset time, the display will go back to the display start time of the latest caption (playback resumes from Figure 12: D). Thus, the user can recall the past viewing contents more accurately and view the subsequent portion.
[0063] [実施の形態 4]  [0063] [Embodiment 4]
次に、本発明の実施の形態 4におけるコンテンツ再生装置について説明する。尚、 実施の形態 4のコンテンツ再生装置の内部構成は、実施の形態 1のそれと同じである ため説明を省略する。また、実施の形態 3と同様に、コンテンツ再生装置の再開位置 判断部 6はコンテンツ区切り区間情報に基づいて中断後の再生再開位置を判断する Next, a content reproduction apparatus according to Embodiment 4 of the present invention will be described. Note that the internal configuration of the content reproduction apparatus of the fourth embodiment is the same as that of the first embodiment. Therefore, explanation is omitted. Further, as in the third embodiment, the restart position determination unit 6 of the content playback apparatus determines the playback restart position after the interruption based on the content break section information.
[0064] 但し、実施の形態 4では、複数のコンテンツ区切り区間情報を用いて、再生再開位 置を決定する点が、実施の形態 3と異なる。すなわち、コンテンツ区切り区間情報のコ ンテンッ区切り区間が所定の時間より短い場合や、コンテンツ区切り区間が連続して 存在する場合に、それらを 1つのグループとみなして、グループの先頭まで遡って中 断後の再生を再開する点が、実施の形態 3と異なる。 [0064] However, the fourth embodiment is different from the third embodiment in that the playback restart position is determined using a plurality of pieces of content delimiter section information. In other words, if the content segmentation section of the content segmentation section information is shorter than a predetermined time or if there are continuous content segmentation sections, they are regarded as one group, and after going back to the beginning of the group This is different from Embodiment 3 in that the reproduction of the video is resumed.
[0065] 次に、上記構成のコンテンツ再生装置の動作について説明する。尚、以下でもコン テンッ区切り区間情報の抽出元として字幕情報を用いる例について説明する。  Next, the operation of the content reproduction apparatus having the above configuration will be described. In the following, an example in which caption information is used as an extraction source of content segmentation section information will be described.
[0066] 図 13は、本発明の実施の形態 4におけるコンテンツ再生装置の再生再開位置判断 処理手順の一部を示すフローチャートである。実施の形態 4では、コンテンツの再生 を中断した際に任意の字幕が表示されていた場合、更にその直前に表示されていた 別の字幕が内容的に関連性の高いものである力否力を以下の手順で判断する。従 つて、実施の形態 3における図 9のフローチャートの記号 Aの部分に新たな処理手順 が追加される。その他の処理手順は、実施の形態 3と同じであるため（図 9のフローチ ヤートのステップ S301からステップ S306まで）、説明を省略する。  FIG. 13 is a flowchart showing a part of the playback restart position determination processing procedure of the content playback apparatus in Embodiment 4 of the present invention. In the fourth embodiment, when an arbitrary subtitle is displayed when the content playback is interrupted, another subtitle displayed immediately before that is more powerfully related. Judgment is made according to the following procedure. Accordingly, a new processing procedure is added to the portion of symbol A in the flowchart of FIG. Since other processing procedures are the same as those in the third embodiment (from step S301 to step S306 in the flow chart in FIG. 9), description thereof is omitted.
[0067] 検索したコンテンツ区切り区間内にコンテンツの再生中断位置が含まれる場合（図 9のフローチャートのステップ S303が Yesである場合）、再開位置判断部 6は、次に、 該当するコンテンツ区切り区間（以下、区間 αと称する）の直前のコンテンツ区切り区 間（以下、区間 |8と称する）を検索し、区間 αと区間 |8とがどれだけ離れているかの 間隔（時間）を算出する (ステップ S401)。  [0067] When the content playback interruption position is included in the searched content separation section (when step S303 in the flowchart of FIG. 9 is Yes), the restart position determination unit 6 next selects the corresponding content separation section ( (Hereinafter referred to as section α) is searched for a content delimiter section (hereinafter referred to as section | 8), and the interval (time) of how far section α is separated from section | 8 is calculated (step) S401).
[0068] 次に、再開位置判断部 6は、算出した時間が閾値内であるか否かを判断する (ステ ップ S402)。具体的には、区間 αの区切り時刻 （区間 j8の区切り時刻 +区間 j8の 有効時間） <閾値の不等式の正否を判断する。例えば、区間 OCと区間 βが連続して いる場合 (間隔 =0)など、不等式が成り立つ場合、再開位置判断部 6は、区間 aと 区間 βで表示される字幕が内容的に関連性が高いと判断し、両方を結合して 1つの コンテンツ区切り区間と見做す (ステップ S403)。従って、新たなコンテンツ区切り区 間の区切り時刻は、区間 αの区切り時刻に変更される。コンテンツ区切り区間が結合 された後は、再びステップ S401へ戻り、同様の手順を繰り返す。 [0068] Next, the restart position determining unit 6 determines whether or not the calculated time is within the threshold (step S402). Specifically, it is determined whether the interval α (segment j8 segment time + segment j8 valid time) <threshold inequality is correct or not. For example, if the inequality holds, such as when section OC and section β are continuous (interval = 0), the restart position determination unit 6 indicates that the subtitles displayed in section a and section β are highly relevant in terms of content. It is determined that the two are combined and regarded as one content delimiter section (step S403). Therefore, a new content break The break time between them is changed to the break time of section α. After the content delimiter sections are combined, the process returns to step S401 again, and the same procedure is repeated.
[0069] 一方、区間 aと区間 βの間隔が閾値以上に離れている場合など、不等式が成り立 たない場合、図 9のフローチャートのステップ S304に戻り、最後に検索したコンテン ッ区切り区間情報の区切り時刻が再生再開位置情報の再生再開位置に登録される [0069] On the other hand, if the inequality does not hold, such as when the interval between interval a and interval β is greater than or equal to the threshold, the process returns to step S304 in the flowchart of FIG. The break time is registered at the playback restart position in the playback restart position information.
[0070] 図 14と図 15は、コンテンツ区切り区間情報リストが表すコンテンツの区切り及び区 間の構成を模式的に示す図である。例えば、コンテンツの区切り及び区間の構成が 図 14に示すようなコンテンツにおいて、開始力も 36分 40秒 00で再生を中断した場合 、本実施の形態のコンテンツ再生装置では、当該中断位置が、最も近接する識別子 Dのコンテンツ区切り区間内に含まれているので、更にその直前のコンテンツ区切り 区間 (識別子 C)で表示される字幕との関連性を判断する。そして、最終的に識別子 Dの区切り時刻 35分 00秒 00でなく、識別子じの区切り時刻 32分 00秒 00が再生再開位 置として登録される。 FIG. 14 and FIG. 15 are diagrams schematically showing the content delimiters and the structure of the intervals represented by the content delimiter section information list. For example, in the case where the content is divided and the section configuration is as shown in FIG. 14 and the playback is interrupted at a start power of 36 minutes 40 seconds 00, in the content playback device of the present embodiment, the interrupt position is closest. Since it is included in the content delimiter section of identifier D to be determined, the relevance with the subtitles displayed in the immediately preceding content delimiter section (identifier C) is determined. Finally, the identifier separation time 32 minutes 00 seconds 00 is registered instead of the identifier D separation time 35 minutes 00 seconds 00 as the playback resume position.
[0071] これは、識別子 Dのコンテンツ区切り区間 (字幕 D表示時間と称する)の開始時刻と 、識別子 Cのコンテンツ区切り区間 (字幕 C表示時間と称する）の終了時刻が一致し ている (連続して表示される)ため、字幕 Cと字幕 Dが内容的に関連していると判断さ れたのである。このように、中断位置において字幕が表示されていた場合、関連する 一連の字幕の最初の字幕の表示開始時刻まで遡って再生が再開される。  [0071] This is because the start time of the content delimiter section of identifier D (referred to as subtitle D display time) and the end time of the content delimiter section of identifier C (referred to as subtitle C display time) coincide (continuous). Therefore, it was determined that subtitle C and subtitle D are related in terms of content. In this way, when a subtitle is displayed at the interruption position, playback is resumed retroactively to the display start time of the first subtitle of a series of related subtitles.
[0072] 同様に、例えば、コンテンツの区切り及び区間の構成が図 15に示すようなコンテン ッにおいて、開始力 36分 40秒 00で再生を中断した場合、本実施の形態のコンテン ッ再生装置では、当該中断位置が、最も近接する識別子 Εのコンテンツ区切り区間 内に含まれているので、更にその直前のコンテンツ区切り区間（識別子 C)で表示さ れる字幕との関連性を判断する。そして、最終的に識別子 Εの区切り時刻 35分 01秒 0 0でなぐ識別子 Cの区切り時刻 32分 00秒 00が再生再開位置として登録される。  [0072] Similarly, for example, in the case where the content segmentation and section configuration are as shown in FIG. 15, when playback is interrupted at a starting force of 36 minutes 40 seconds 00, the content playback device of this embodiment Since the interruption position is included in the content delimiter section of the closest identifier Ε, the relevance with the subtitle displayed in the immediately preceding content delimiter section (identifier C) is determined. Finally, the identifier C delimiter time 32 minutes 00 seconds 00 after the identifier IV delimiter time 35 minutes 01 seconds 00 is registered as the playback resume position.
[0073] これは、識別子 Εのコンテンツ区切り区間 (字幕 Ε表示時間と称する）の開始時刻と 、識別子 Cのコンテンツ区切り区間（字幕 C表示時間と称する）の終了時刻が所定の 閾値以内（例えば、図 15では閾値を 34とした)であるため（すなわち、字幕 Ε表示時 間の開始時刻と字幕 c表示時間の開始時刻との間隔が、所定の閾値を越えない場 合であるため）、字幕 Cと字幕 Eが内容的に関連していると判断されたのである。この ように、中断位置において字幕が表示されていた場合は、関連する一連の字幕の最 初の字幕の表示開始時刻まで遡って再生が再開される。 [0073] This is because the start time of the content delimiter section of identifier ((referred to as subtitle Ε display time) and the end time of the content delimiter section of identifier C (referred to as subtitle C display time) are within a predetermined threshold (for example, This is because the threshold is 34 in Fig. 15 (ie, when subtitles are displayed) Because the interval between the start time and the start time of the subtitle c display time does not exceed the predetermined threshold), it was determined that subtitle C and subtitle E are related in content. Thus, when a caption is displayed at the interruption position, playback is resumed retroactively to the display start time of the first caption in a series of related captions.
[0074] 尚、上記の閾値は予め設定された時間であり、コンテンツにあわせてサーノから取 得する形式としてもよいし、ユーザに入力、選択させる形式としてもよい。  Note that the above threshold is a preset time, and may be a format obtained from Sano according to the content, or a format in which the user inputs and selects.
[0075] また、コンテンツ区切り区間情報の有効時間の有無によってコンテンツ区切り区間 情報に重み付けすることにより、中断位置力 遡るコンテンッ区切り時刻を選択する ようにしてもよい。更に、中断位置力もコンテンツ区切り時刻まで遡る時間に重み付け し、コンテンツ区切り区間情報を選択するようにしてもよい。具体的には、複数のコン テンッ区切り区間情報を 1のグループとする場合の閾値を、中断位置力もコンテンツ 区切り時刻までの時間が長くなるほど、小さくするように重み付けすることにより、再生 再開位置が、中断位置力 遡りすぎるのを防止し、適切な位置から再生を再開できる  [0075] Further, the content break time that goes back to the interruption position may be selected by weighting the content break interval information depending on whether the content break interval information is valid. Furthermore, the interruption position force may be weighted to the time going back to the content separation time, and the content separation section information may be selected. Specifically, the playback restart position is set by weighting the threshold value when a plurality of content segmentation section information is made into one group so that the interruption position force becomes smaller as the time until the content segmentation time becomes longer. Interruption position force Prevents going back too far and can resume playback from the appropriate position
[0076] 以上のように、本発明の実施の形態 4におけるコンテンツ再生装置によれば、コン テンッの再生中断後に、中断時に表示されていた字幕の表示開始時刻まで遡って、 内容的に適切な位置力もコンテンツの再生を再開することができる。特に、実施の形 態 4では、再生を中断した位置において表示されていた字幕と内容的に関連性が高 いと判断される別の字幕がそれ以前に表示されている場合、関連する一連の字幕の 最初の字幕の表示開始時刻まで遡って再生を再開するため、ユーザは過去の視聴 内容を的確に想起して続き部分を視聴することができる。 [0076] As described above, according to the content playback apparatus of Embodiment 4 of the present invention, after content playback is interrupted, the content is appropriately traced back to the display start time of the subtitles displayed at the time of the interrupt. Positional power can also resume content playback. In particular, in Embodiment 4, when another subtitle that is determined to be highly relevant to the subtitle that was displayed at the position where playback was interrupted is displayed before that, a series of related subtitles are displayed. Since playback is resumed retroactively to the display start time of the first subtitle, the user can accurately recall the past viewing contents and view the subsequent part.
[0077] [実施の形態 5]  [0077] [Embodiment 5]
次に、本発明の実施の形態 5におけるコンテンツ再生装置について説明する。尚、 実施の形態 5のコンテンツ再生装置の内部構成は、実施の形態 1のそれと同じである ため説明を省略する。  Next, a content reproduction apparatus according to Embodiment 5 of the present invention will be described. Note that the internal configuration of the content reproduction apparatus of the fifth embodiment is the same as that of the first embodiment, and thus the description thereof is omitted.
[0078] 但し、実施の形態 5では、視聴管理部 5で管理するコンテンツトリガー情報にユーザ 識別子を追加し、入力部 1から入力を行うユーザごとに再生再開位置を設定し、再生 再開位置情報を個別に生成する点が、実施の形態 1と異なる。 [0079] 図 16は、本発明の実施の形態 5におけるコンテンツ再生装置で使用するコンテン ットリガー情報のデータ構造を概念的に示す図である。ユーザ識別子を導入すること により、家族など複数のユーザで同一のコンテンツを異なる時間に視聴している場合 でも、コンテンツトリガー情報がユーザごとに生成、管理されるため、再生再開時には そのユーザに対応する適切な位置力もコンテンツの再生を再開することができる。 However, in Embodiment 5, a user identifier is added to the content trigger information managed by the viewing management unit 5, a playback resume position is set for each user who inputs from the input unit 1, and the playback resume position information is It differs from the first embodiment in that it is generated individually. FIG. 16 is a diagram conceptually showing a data structure of content trigger information used in the content reproduction device in the fifth embodiment of the present invention. By introducing a user identifier, even when multiple users such as family members watch the same content at different times, content trigger information is generated and managed for each user. Appropriate positioning can also resume content playback.
[0080] 以上のように、本発明の実施の形態 5におけるコンテンツ再生装置によれば、複数 のユーザが同一のコンテンツを再生する場合でも、再生再開位置が個別に管理され るため、各ユーザは過去の視聴内容を的確に想起して続き部分を視聴することがで きる。  [0080] As described above, according to the content reproduction device of Embodiment 5 of the present invention, even when a plurality of users reproduce the same content, the reproduction resume position is managed individually, so that each user can It is possible to watch the subsequent part by accurately recalling the past viewing contents.
[0081] [実施の形態 6]  [0081] [Embodiment 6]
次に、本発明の実施の形態 6におけるコンテンツ再生装置について説明する。尚、 実施の形態 6のコンテンツ再生装置の内部構成は、実施の形態 1のそれと同じである ため説明を省略する。  Next, a content reproduction apparatus according to Embodiment 6 of the present invention will be described. Note that the internal configuration of the content playback apparatus of the sixth embodiment is the same as that of the first embodiment, and thus the description thereof is omitted.
[0082] 但し、これまでの実施の形態では、コンテンツの再生中断時 (コンテンツ再生中断 要求を受け取った時）に中断位置を記憶し、再生再開時 (コンテンツ再生再開要求を 受け取った時)に再生再開位置を判断していたのに対して、実施の形態 6では、コン テンッの再生中断時 (コンテンツ再生中断要求を受け取った時）に中断位置から再 生再開位置情報を生成、記憶しておき、再生再開時 (コンテンツ再生再開要求を受 け取った時)には、記憶した再生再開位置情報を読み出すだけとした点が異なる。  [0082] However, in the embodiments so far, the interruption position is stored when the content reproduction is interrupted (when the content reproduction interruption request is received), and the reproduction is resumed when the reproduction is resumed (when the content reproduction resumption request is received). Whereas the restart position is determined, in Embodiment 6, playback resume position information is generated and stored from the interrupt position when content playback is interrupted (when a content playback interrupt request is received). However, when playback is resumed (when a content playback resume request is received), only the stored playback resume position information is read.
[0083] 本発明の実施の形態 6におけるコンテンツ再生装置によれば、再生再開時に煩雑 な処理を行うことがないため円滑に視聴を再開することができる。  [0083] According to the content playback apparatus in Embodiment 6 of the present invention, since complicated processing is not performed when playback is resumed, viewing can be smoothly resumed.
[0084] 尚、上記の実施の形態においては、コンテンツの再生再開時に、既に視聴した部 分に遡って再生しているときは「視聴済み」、未視聴部分を再生しているときは「未視 聴」などの表示が行われることが好ま 、。視聴済み部分と未視聴部分との区別が明 確にされれば、ユーザは過去の視聴内容をより的確に想起して続き部分を視聴する ことができるカゝらである。  [0084] In the above embodiment, at the time of resuming the reproduction of content, "reviewed" is played back when the content has already been viewed, and "unread" is reproduced when the unviewed portion is reproduced. It is preferable that display such as "listening" is performed. If the distinction between the watched part and the unviewed part is made clear, the user can recall the past viewing contents more accurately and watch the subsequent part.
[0085] 尚、上記実施の形態では、入力信号を「再生」、「停止」、「再生再開」の 3種類とし た例について説明した力 「再生」、「停止」の 2種類としてもよい。但し、その場合に は、「再生」の入力信号を受信した際に、まず、視聴管理部 5にコンテンツトリガー情 報の有無を照会し、コンテンツトリガー情報の有無によって「再生開始」または「再生 再開」を判断させるようにすればょ 、。 In the above-described embodiment, two types of force “play” and “stop” described in the example in which the input signal has three types of “play”, “stop”, and “play resume” may be used. However, in that case When the “playback” input signal is received, first, the viewing management unit 5 is queried for the presence of the content trigger information, so that “playback start” or “playback restart” is determined depending on the presence of the content trigger information. If you want.
[0086] また、コンテンツ再生装置の入力部、出力制御部、視聴管理部、データ入力部、出 力制御部、再開位置判断部は同一の機器上にある必要はなぐネットワークを介して 接続されていてもよいし、リモコン、携帯機器のように無線を介して接続されていても よい。更に、入力部への入力は、本体の操作ボタンでもよいし、リモコンや携帯機器 による無線を介した入力でもよ ヽし、音声を用いた入力でもよ ヽ。  [0086] Also, the input unit, output control unit, viewing management unit, data input unit, output control unit, and restart position determination unit of the content playback device are connected via a network that does not need to be on the same device. Alternatively, they may be connected via radio such as a remote controller or a portable device. Furthermore, the input to the input unit may be an operation button on the main body, an input via radio using a remote controller or a portable device, or an input using sound.
[0087] また、データ入力部へ入力されるデータは、装置内の蓄積装置に蓄積されたコンテ ンッゃコンテンツデータ、コンテンツの属性情報でもよい。また、データは、ネットヮー クを介して接続された蓄積装置力 入力されてもよいし、ネットワークを介してストリー ミングにより入力されてもよいし、 DVDやフラッシュメモリカードのように持ち運び可能 な蓄積装置力 入力されて 、てもよ 、。  [0087] Further, the data input to the data input unit may be content data and content attribute information stored in a storage device in the device. In addition, data may be input from a storage device connected via a network, may be input by streaming via a network, or may be a portable storage device such as a DVD or flash memory card. It is possible to input force.
[0088] 本発明を詳細にまた特定の実施態様を参照して説明したが、本発明の精神と範囲 を逸脱することなく様々な変更や修正を加えることができることは当業者にとって明ら かである。  [0088] Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. is there.
本出願は、 2006年 3月 16日出願の日本特許出願 (特願 2006— 073041)に基づくも のであり、その内容はここに参照として取り込まれる。  This application is based on a Japanese patent application filed on March 16, 2006 (Japanese Patent Application No. 2006-073041), the contents of which are incorporated herein by reference.
産業上の利用可能性  Industrial applicability
[0089] 本発明は、過去の視聴内容をユーザに的確に想起させ、続き部分の視聴を円滑に 再開することができる効果を有し、録画した放送番組や DVDに記録された動画など のコンテンツの再生を中断した際に、その後の同一コンテンツの再生を適切に再開 する機能を有するコンテンツ再生装置、コンテンツ再生再開方法およびコンテンツ再 生プログラム等に有用である。 [0089] The present invention has an effect that the user can accurately recall past viewing contents and can smoothly resume viewing of the subsequent portion, and contents such as a recorded broadcast program and a moving image recorded on a DVD. This is useful for a content playback apparatus, a content playback restart method, a content playback program, and the like having a function of appropriately restarting playback of the same content thereafter when the playback of the same content is interrupted.

Claims

請求の範囲 The scope of the claims
[1] 中断したコンテンツの再生を再開する機能を有するコンテンツ再生装置であって、 外部からの入力を受け取る入力手段と、  [1] A content playback device having a function of resuming playback of interrupted content, and an input means for receiving an input from the outside,
前記入力手段が受け取つたコンテンッ再生中断要求に応じて、コンテンッの再生を 中断した位置を示す中断位置情報を生成する中断位置情報生成手段と、 前記入力手段が受け取ったコンテンツ再生再開要求に応じて、前記中断位置情報 と、コンテンツの内容的な切れ目を示すコンテンツ区切り位置情報とに基づいて、コ ンテンッの再生を再開する位置を示す再生再開位置情報を生成する再開位置判断 手段と、  In response to the content reproduction interruption request received by the input means, interruption position information generation means for generating interruption position information indicating a position where content reproduction was interrupted, and in response to a content reproduction restart request received by the input means, Resumption position determination means for generating reproduction resumption position information indicating a position at which reproduction of content is resumed based on the interruption position information and content delimitation position information indicating content breaks;
前記再生再開位置情報に基づ 、て、コンテンツの再生を再開させる再生再開制御 手段と、  Based on the playback restart position information, playback restart control means for restarting playback of content,
を備えるコンテンツ再生装置。  A content playback apparatus comprising:
[2] 前記再開位置判断手段は、前記中断位置情報が示す中断位置から遡った最も近 接するコンテンツ区切り位置を再生再開位置として前記再生再開位置情報を生成す る請求項 1記載のコンテンツ再生装置。  [2] The content reproduction device according to [1], wherein the resumption position determination unit generates the reproduction resumption position information with a content division position that is closest to the interruption position indicated by the interruption position information as a reproduction resumption position.
[3] 前記再開位置判断手段は、コンテンツの再生を中断している時間の長さに応じて 修正時間を算出し、前記中断位置力も前記修正時間分を遡った時点において最も 近接するコンテンツ区切り位置を再生再開位置として前記再生再開位置情報を生成 する請求項 1記載のコンテンツ再生装置。 [3] The restart position determining means calculates a correction time according to the length of time during which the content reproduction is interrupted, and the content break position closest to the time when the interruption position force goes back the correction time. 2. The content playback apparatus according to claim 1, wherein the playback restart position information is generated using the playback restart position as a playback restart position.
[4] 前記再開位置判断手段は、前記中断位置情報が示す中断位置が、前記中断位置 から遡った最も近接する有効時間に含まれる場合、前記有効時間の開始時点である コンテンツ区切り位置を再生再開位置として前記再生再開位置情報を生成する請求 項 1記載のコンテンツ再生装置。 [4] When the interruption position indicated by the interruption position information is included in the nearest valid time retroactive to the interruption position, the resume position determination unit resumes reproduction of the content break position that is the start point of the validity time. The content playback apparatus according to claim 1, wherein the playback resume position information is generated as a position.
[5] 前記再開位置判断手段は、前記中断位置情報が示す中断位置が、前記中断位置 から遡った最も近接する有効時間に含まれない場合、前記有効時間の終了時点で あるコンテンツ区切り位置を再生再開位置として前記再生再開位置情報を生成する 請求項 1記載のコンテンツ再生装置。 [5] When the interruption position indicated by the interruption position information is not included in the closest valid time retroactive to the interruption position, the resume position determination unit reproduces the content break position that is the end point of the validity time. The content playback apparatus according to claim 1, wherein the playback restart position information is generated as a restart position.
[6] 前記再開位置判断手段は、前記中断位置情報が示す中断位置が、前記中断位置 から遡った最も近接する有効時間に含まれ、かつ、前記有効時間の開始時点である コンテンツ区切り位置と、このコンテンツ区切り位置の前方に近接するコンテンツ区切 り位置との間隔が、所定の閾値を越えない場合、最も前方のコンテンツ区切り位置を 再生再開位置として前記再生再開位置情報を生成する請求項 1記載のコンテンツ再 生装置。 [6] The resumption position determination means is configured such that the interruption position indicated by the interruption position information is the interruption position. The interval between the content delimiter position that is included in the closest valid time retroactively and is the start point of the effective time and the content delimiter position that is in front of this content delimiter position exceeds a predetermined threshold. 2. The content reproduction device according to claim 1, wherein if there is not, the reproduction resume position information is generated with the foremost content separation position as the reproduction resume position.
[7] 前記所定の閾値は、予めサーバに設定されており、当該サーバから取得されるもの である請求項 6記載のコンテンツ再生装置。  7. The content reproduction apparatus according to claim 6, wherein the predetermined threshold value is set in advance in a server and acquired from the server.
[8] 前記再開位置判断手段は、前記有効時間の開始時点であるコンテンツ区切り位置 と、このコンテンツ区切り位置の前方に近接するコンテンツ区切り位置との間隔力 所 定の閾値を越えな 、場合、前記コンテンツの再生を中断した位置と前記コンテンツの 内容的な切れ目の位置との時間距離に応じて設定される重み付け情報を参照して、 前記再生再開位置情報を生成する請求項 6記載のコンテンツ再生装置。  [8] The restart position determination means does not exceed a predetermined threshold value between a content break position that is the start point of the valid time and a content break position adjacent to the front of the content break position. 7. The content playback apparatus according to claim 6, wherein the playback resume position information is generated by referring to weighting information set according to a time distance between a position where the playback of the content is interrupted and a position of a specific break of the content. .
[9] 前記再開位置判断手段は、ユーザを識別するためのユーザ識別子に応じて前記 再生再開位置情報を生成する請求項 1記載のコンテンツ再生装置。  9. The content playback apparatus according to claim 1, wherein the restart position determining means generates the playback restart position information according to a user identifier for identifying a user.
[10] 中断したコンテンツの再生を再開する機能を有するコンテンツ再生装置であって、 外部からの入力を受け取る入力手段と、  [10] A content playback device having a function of resuming playback of the interrupted content, wherein the input means receives external input;
前記入力手段が受け取つたコンテンッ再生中断要求に応じて、コンテンッの再生を 中断した位置を示す中断位置情報を生成する中断位置情報生成手段と、 前記入力手段が受け取ったコンテンツ再生中断要求に応じて、前記中断位置情報 と、コンテンツの内容的な切れ目を示すコンテンツ区切り位置情報とに基づいて、コ ンテンッの再生を再開する位置を示す再生再開位置情報を生成する再開位置判断 手段と、  In response to the content reproduction interruption request received by the input means, interruption position information generation means for generating interruption position information indicating the position where the content reproduction was interrupted, and in response to the content reproduction interruption request received by the input means, Resumption position determination means for generating reproduction resumption position information indicating a position at which reproduction of content is resumed based on the interruption position information and content delimitation position information indicating content breaks;
前記入力手段が受け取ったコンテンツ再生再開要求に応じて、前記再生再開位置 情報に基づいて、コンテンツの再生を再開させる再生再開制御手段と、  In response to the content playback restart request received by the input means, playback restart control means for restarting playback of content based on the playback restart position information;
を備えるコンテンツ再生装置。  A content playback apparatus comprising:
[11] 前記コンテンツ区切り位置情報は、コンテンツに含まれる字幕情報の提示開始時 刻及び提示終了時刻で表されるものである請求項 1または 10記載のコンテンツ再生 装置。 11. The content playback device according to claim 1, wherein the content delimiter position information is represented by a presentation start time and a presentation end time of caption information included in the content.
[12] 前記コンテンツ区切り位置情報は、セグメンテーションメタデータまたはセグメンテ ーシヨングループメタデータに係る Media Ref Timeの値及び Media Ref Timeの値と Me dia Durationの値をカ卩算したもので表されるものである請求項 1または 10記載のコン テンッ再生装置。 [12] The content delimiter position information is expressed by calculating the value of Media Ref Time and the value of Media Ref Time and Media Duration related to segmentation metadata or segmentation group metadata. The content reproduction apparatus according to claim 1 or 10, wherein
[13] 前記コンテンツ区切り位置情報は、コンテンツの音声データの強弱に係る切り替わ りタイミングのタイムスタンプで表されるものである請求項 1または 10記載のコンテンツ 再生装置。  13. The content playback apparatus according to claim 1, wherein the content delimiter position information is represented by a time stamp of a switching timing related to the strength of audio data of the content.
[14] 前記コンテンツ区切り位置情報は、コンテンツの映像データのシーンに係る切り替 わりタイミングのタイムスタンプで表されるものである請求項 1または 10記載のコンテ ンッ再生装置。  14. The content playback apparatus according to claim 1 or 10, wherein the content delimiter position information is represented by a time stamp of a switching timing related to a scene of content video data.
[15] 前記コンテンツ区切り位置情報は、予めサーバに設定されており、当該サーバから 取得されるものである請求項 1または 10記載のコンテンツ再生装置。  15. The content reproduction device according to claim 1, wherein the content delimiter position information is set in advance in a server and is acquired from the server.
[16] 中断したコンテンツの再生を再開するコンテンツ再生再開方法であって、 [16] A content playback restart method for restarting playback of interrupted content,
外部からコンテンッ再生中断要求を受け取り、  Receives a content playback interruption request from the outside,
受け取ったコンテンツ再生中断要求に応じて、コンテンツの再生を中断した位置を 示す中断位置情報を生成し、  In response to the received content playback interruption request, it generates interruption position information indicating the position where the content reproduction was interrupted,
外部からコンテンツ再生再開要求を受け取り、  Receives a request to resume content playback from the outside,
受け取ったコンテンツ再生再開要求に応じて、前記中断位置情報と、コンテンツの 内容的な切れ目を示すコンテンツ区切り位置情報とに基づいて、コンテンツの再生を 再開する位置を示す再生再開位置情報を生成し、  In response to the received content reproduction restart request, based on the interruption position information and the content delimitation position information indicating the content break, content reproduction resumption position information indicating a position where the content reproduction is resumed is generated.
前記再生再開位置情報に基づいて、コンテンツの再生を再開させるコンテンツ再 生再開方法。  A content reproduction restart method for resuming content reproduction based on the reproduction resume position information.
[17] 中断したコンテンツの再生を再開するコンテンツ再生再開方法であって、  [17] A content playback restart method for restarting playback of interrupted content,
外部からコンテンッ再生中断要求を受け取り、  Receives a content playback interruption request from the outside,
コンテンツ再生中断要求に応じて、コンテンツの再生を中断した位置を示す中断位 置情報を生成し、前記中断位置情報と、コンテンツの内容的な切れ目を示すコンテ ンッ区切り位置情報とに基づいて、コンテンツの再生を再開する位置を示す再生再 開位置情報を生成し、 外部からコンテンツ再生再開要求を受け取り、 In response to the content reproduction interruption request, the interruption position information indicating the position where the reproduction of the content is interrupted is generated. Based on the interruption position information and the content break position information indicating the specific break of the content, the content To generate playback resume position information indicating the position to resume playback of Receives a request to resume content playback from the outside,
受け取ったコンテンツ再生再開要求に応じて、前記再生再開位置情報に基づいて 、コンテンツの再生を再開させるコンテンツ再生再開方法。  A content playback restart method for restarting playback of content based on the playback restart position information in response to a received content playback restart request.
[18] 中断したコンテンツの再生を再開する機能を有するコンテンツ再生プログラムであ つて、コンピュータを、  [18] A content playback program having a function of restarting playback of the interrupted content,
外部から受け取つたコンテンッ再生中断要求に応じて、コンテンツの再生を中断し た位置を示す中断位置情報を生成する中断位置情報生成手段、  Interruption position information generating means for generating interruption position information indicating a position where the reproduction of content is interrupted in response to a content reproduction interruption request received from outside;
外部力 受け取ったコンテンツ再生再開要求に応じて、前記中断位置情報と、コン テンッの内容的な切れ目を示すコンテンツ区切り位置情報とに基づいて、コンテンツ の再生を再開する位置を示す再生再開位置情報を生成する再開位置判断手段、 前記再生再開位置情報に基づ 、て、コンテンツの再生を再開させる再生再開制御 手段、  External force In response to the received content playback restart request, the playback restart position information indicating the position where the content playback is restarted is based on the interruption position information and the content break position information indicating the content break. Resuming position determining means for generating, replay resuming control means for resuming reproduction of content based on the replay resuming position information,
として機能させるためのコンテンツ再生プログラム。  Content playback program to function as
[19] 中断したコンテンツの再生を再開する機能を有するコンテンツ再生プログラムであ つて、コンピュータを、 [19] A content playback program having a function of resuming playback of the interrupted content,
外部から受け取つたコンテンッ再生中断要求に応じて、コンテンツの再生を中断し た位置を示す中断位置情報を生成する中断位置情報生成手段、  Interruption position information generating means for generating interruption position information indicating a position where the reproduction of content is interrupted in response to a content reproduction interruption request received from outside;
外部力 受け取ったコンテンツ再生中断要求に応じて、前記中断位置情報と、コン テンッの内容的な切れ目を示すコンテンツ区切り位置情報とに基づいて、コンテンツ の再生を再開する位置を示す再生再開位置情報を生成する再開位置判断手段、 外部力 受け取ったコンテンツ再生再開要求に応じて、前記再生再開位置情報に 基づいて、コンテンツの再生を再開させる再生再開制御手段、  External force In response to the received content reproduction interruption request, reproduction resumption position information indicating a position where the reproduction of the content is resumed is based on the interruption position information and the content break position information indicating the content break. Resumption position determining means for generating, external force reproduction resumption control means for resuming reproduction of content based on the reproduction resumption position information in response to the received content reproduction resumption request,
として機能させるためのコンテンツ再生プログラム。  Content playback program to function as
PCT/JP2007/055286 2006-03-16 2007-03-15 Content reproduction device, content reproduction resumption method, and content reproduction program WO2007119383A1 (en)

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