WO2007119383A1 - Dispositif de reproduction de contenu, procédé de reprise de reproduction de contenu et programme de reproduction de contenu - Google Patents

Dispositif de reproduction de contenu, procédé de reprise de reproduction de contenu et programme de reproduction de contenu 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
English (en)
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/fr

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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

Cette invention vise à produire un dispositif de reproduction de contenu capable de reprendre en douceur la présentation d'une partie restante lors de la reprise d'une reproduction de contenu qui a été interrompue en invitant un utilisateur à rappeler précisément les précédents contenus de présentations. Le dispositif de reproduction de contenu possède une fonction lui permettant de reprendre la reproduction d'un contenu qui a été interrompue. Le dispositif de reproduction de contenu comprend: une unité d'entrée (1) qui reçoit une entrée de l'extérieur; une unité d'entrée de données (2) qui obtient des données de contenu et analogues de l'extérieur; une unité de commande de sortie (4) qui génère des informations de position d'interruption indiquant la position à laquelle la reproduction de contenu a été interrompue conformément à une demande d'interruption de reproduction de contenu reçue de l'unité d'entrée (1); une unité de gestion de présentations (5) qui gère des informations et analogues générées par l'unité de commande de sortie (4); et une unité d'évaluation de position de reprise (6) qui génère d'une part des informations de position de fractionnement de contenu indiquant une fraction du contenu et d'autre part des informations de position de reprise de reproduction indiquant la position à laquelle la reproduction de contenu est reprise conformément aux informations de position d'interruption. En fonction des informations de position de reprise de reproduction, l'unité de commande de sortie (4) reprend la reproduction de contenu et l'unité de sortie (3) est commandée par l'unité de commande de sortie (4) pour reproduire et présenter le contenu.
PCT/JP2007/055286 2006-03-16 2007-03-15 Dispositif de reproduction de contenu, procédé de reprise de reproduction de contenu et programme de reproduction de contenu WO2007119383A1 (fr)

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JP2006-073041 2006-03-16
JP2006073041A JP2007250097A (ja) 2006-03-16 2006-03-16 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

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JP2012504902A (ja) * 2008-10-03 2012-02-23 ユナイテッド ビデオ プロパティーズ インク 録画した番組の視聴した部分の削除

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JP4990754B2 (ja) * 2007-12-28 2012-08-01 パナソニック株式会社 コンテンツ再生装置
JP5701056B2 (ja) * 2010-12-28 2015-04-15 キヤノン株式会社 コンテンツ再生装置及びコンテンツ再生方法
JP6535943B2 (ja) * 2017-09-23 2019-07-03 Ｎｌ技研株式会社 コンテンツの受信装置および配信装置
KR102508151B1 (ko) * 2018-01-02 2023-03-09 엘지전자 주식회사 이동 단말기 및 그 제어 방법

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JPH041947B2 (fr) * 1983-07-12 1992-01-14 Matsushita Denki Sangyo Kk
JP2002281447A (ja) * 2001-03-15 2002-09-27 Sharp Corp 情報再生装置
EP1288951A2 (fr) * 2001-09-03 2003-03-05 Pioneer Corporation Appareil d'enregistrement et de reproduction et logiciel d'ordinateur
WO2004049337A1 (fr) * 2002-11-25 2004-06-10 Sharp Kabushiki Kaisha Dispositif de reproduction, procede de reproduction, programme de reproduction et support d'enregistrement contenant le programme de reproduction
JP2005025894A (ja) * 2003-07-04 2005-01-27 Sharp Corp Ａｖデータ再生方法、ａｖデータ記録方法、及び、ａｖデータ記録媒体
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JP2012504902A (ja) * 2008-10-03 2012-02-23 ユナイテッド ビデオ プロパティーズ インク 録画した番組の視聴した部分の削除

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