JP2008176838A - Optical disk reproducing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk reproducing system which can remove the trouble of causing an error display as before due to errorneous reproduction of an unreproducible file. <P>SOLUTION: When a DVD is inserted into a DVD reproducing section 1, the DVD reproducing section reproduces from the DVD each recording position information corresponding to each file recorded in the DVD, and a control section 4 makes a recording section 5 store each reproduced recording position information. When any one of the above files is selected by a remote control operation, the DVD reproducing section 1 reproduces the DVD based on the recording position information stored in the recording section 5 corresponding to the selected file, and when any one of an authority error, over rental number of times, and a resolution error happens, the control section 4 deletes the recording position information stored in the recording section 5 corresponding to the selected file. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an optical disc playback apparatus.

  2. Description of the Related Art In recent years, an optical disc playback apparatus that can play back a file called a DivX (registered trademark) VOD (Video On Demand) file from an optical disc has been put into practical use. The DivX VOD file is a copyright-protected file downloaded from the DivX site via the Internet, and an encoding technique called DivX is used for video compression.

  When reproducing such a DivX VOD file from an optical disc, in the conventional optical disc reproducing device, the unique key of the file matches the unique key of the optical disc device, or the file is not reproduced exceeding the reproduction count limit. If the resolution of the file is not a resolution that cannot be played back by the optical disk device, and if no permission error, rental count expired, or resolution error occurs, the file is played and the permission error, rental count expired, resolution error When either one occurs, an error display corresponding to each error is displayed on the display means to notify the user.

Also, in Patent Document 1, when a user instructs playback of a content, it is determined whether or not the decryption key of the content is recorded in the playback permission information recording area of the optical disc. There has been disclosed an optical disk reproducing apparatus that displays that a content cannot be reproduced on a display unit when the encrypted content is decrypted and the content is not recorded.
JP 2006-4473 A

  However, in the conventional optical disc playback apparatus, when a large number of files and contents are recorded on the optical disc, it is difficult for the user to memorize which files and contents cannot be played back. There is a problem in that an error is displayed each time an instruction to play a file or content that cannot be performed is given, which is troublesome for the user.

  In view of the above-described problems, an object of the present invention is to provide an optical disc reproducing apparatus that can eliminate the troublesome problem of erroneously reproducing an unreproducible file and displaying an error.

In order to achieve the above object, an optical disc playback apparatus according to the present invention is an optical disc playback apparatus including an optical disc playback section, a control section, and a storage section.
When an optical disc is inserted into the optical disc reproducing unit, the optical disc reproducing unit reproduces each recording position information corresponding to each file recorded on the optical disc from the optical disc, and each reproduced recording position information is transmitted to the control unit. Is stored in the storage unit,
Thereafter, when any one of the files is selected by the operating means, the optical disc playback unit plays back the optical disc based on the recording position information stored in the storage unit corresponding to the selected file. The control unit deletes the recording position information stored in the storage unit corresponding to the selected file when any of an authority error, out-of-rental number, or a resolution error occurs. Yes.

  According to such a configuration, it is possible to make an unreproducible file unrecognizable due to any of an authority error, a rental count expired, or a resolution error, and thereafter the user cannot reproduce the file. There is no need to bother the trouble of erroneously playing an unreproducible file and displaying an error.

  In addition, the optical disc reproducing apparatus of the present invention further includes a display signal output unit in the above configuration, and when any of the authority error, the number of rental times out, and the resolution error occurs, the display signal output unit A display signal for causing the display means to display a display for selecting execution of deletion of the recording position information stored in the storage unit corresponding to the selected file is output to the display means, and the deletion is performed by the operation means. When execution is selected, the control unit deletes the recording position information stored in the storage unit corresponding to the selected file.

  According to such a configuration, since the file cannot be recognized after the user selects display on the display means, the file cannot be recognized suddenly, and the user is not confused.

  Further, the optical disk reproducing apparatus of the present invention is characterized in that, in the above configuration, when the optical disk reproducing unit ejects the optical disk, the control unit discards all the recording position information stored in the storage unit.

  According to such a configuration, information is not mixed even when a new optical disc is inserted.

  According to the optical disk reproducing apparatus of the present invention, it is possible to eliminate the troublesomeness of erroneously reproducing an unreproducible file and displaying an error.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a schematic configuration of a DVD playback apparatus according to the present invention. The DVD playback apparatus includes a DVD playback unit 1, a decoder 2, a video composition unit 3, a control unit 4, a storage unit 5, and a remote control reception unit 6.

  The DVD playback unit 1 includes a tray, a loading mechanism, an optical pickup, a demodulation circuit, an error correction circuit, and the like (not shown), and plays back various information recorded on the inserted DVD. The decoder 2 decodes the video information reproduced by the DVD reproducing unit 1. The video synthesis unit 3 synthesizes the video information decoded by the decoder 2 and the OSD video information generated by the control unit 4, converts the synthesis information into a video signal, and outputs the video signal to a television (not shown). In addition, the video synthesis unit 3 converts the OSD video information generated by the control unit 4 without performing the above synthesis into a video signal and outputs the video signal to a television (not shown). The remote control receiver 6 receives an infrared signal from a remote controller (not shown) and outputs a code signal to the controller 4.

  The file playback operation in the DVD playback apparatus according to the present invention having such a configuration will be described below with reference to the flowchart shown in FIG.

  Here, it is assumed that a DivX VOD file is recorded on the DVD, and file name information and recording position information corresponding to each file are also recorded. When the DVD is placed on a tray (not shown), the DVD reproducing unit 1 closes the tray and the DVD is inserted into the DVD reproducing unit 1 by a user operation, in step S1, the DVD reproducing unit 1 starts from the inserted DVD. The file name information and the recording position information are reproduced, and the control unit 4 stores the reproduced information in the storage unit 5.

  In step S2, the control unit 4 generates OSD video information based on the file name information stored in the storage unit 5, outputs the OSD video information to the video synthesis unit 3, and the TV (not shown) has a file name. Listed. If any file is selected by an operation on a remote controller (not shown) with the tray closed (N in Step S3), the process proceeds to Step S5.

  In step S5, the DVD playback unit 1 plays the DVD from the position indicated by the recording position information stored in the storage unit 5 corresponding to the file selected in step S4, and the unique key information and playback limit number information that the file has. , Play resolution information. Then, the control unit 4 determines whether or not the reproduced unique key information and the unique key information stored in the storage unit 5 match, and if they do not match, the process proceeds to step S9 assuming that an authority error has occurred ( If they match, the process proceeds to step S6 (N in step S5).

  In step S6, the control unit 4 compares the reproduction limit number information reproduced in step S5 with the reproduction number information indicating the reproduction number of the file selected in step S4 stored in the storage unit 5, and the reproduction limit number It is determined whether or not the number of times represented by the number-of-plays information has reached the number of times represented by the information. If it has reached, the process proceeds to step S9 because the number of rentals has expired (Y in step S6). (N in step S6).

  In step S7, the control unit 4 determines whether or not the resolution represented by the resolution information reproduced in step S5 is a resolution that is supported by the VD playback device. If the resolution is not compatible, a resolution error occurs. If the resolution is compatible, the process proceeds to step S8 (N in step S7).

  In step S8, the DVD reproduction unit 1 reproduces the video information included in the file selected in step S4, the decoder 2 decodes the reproduced video information, and the video composition unit 3 decodes the video signal based on the decoded video information. Is output to a television (not shown), and an image is displayed on the television. When the DVD reproduction unit 1 finishes reproducing the video information, the control unit 4 updates the reproduction number information of the file selected in step S4 stored in the storage unit 5 by incrementing the number by 1, and updates the step S2. Return to. In step S2, the control unit 4 generates OSD video information based on the file name information currently stored in the storage unit 5, outputs the OSD video information to the video synthesis unit 3, and displays a list of file names on a television (not shown).

  Also, if an authority error occurs in step S5, if the rental count expires in step S6, or if a resolution error occurs in step S7, the process proceeds to step S9, and the control unit 4 determines the OSD video information according to the generated error. Is output to the video composition unit 3 and an error display corresponding to an error that has occurred on a television (not shown) is displayed.

  In step S10, after 3 seconds have elapsed from the error display in step S9, the control unit 4 generates OSD video information and outputs it to the video synthesis unit 3, and a file recognition disabled setting screen as shown in FIG. 3 is not shown. Displayed on TV. On this screen, “Yes” and “No” are displayed as selection items indicating that the selected file cannot be reproduced and whether or not the selected file is made unrecognizable.

  When the highlight is moved to “Yes” by the remote control operation and the determination operation is performed on the remote control (Y in Step S11), the process proceeds to Step S12, and the control unit 4 selects the file corresponding to the file selected in Step S4. The name information and the recording position information are deleted from the storage unit 5 to make the file unrecognizable, and the process returns to step S2. In step S2, the control unit 4 generates OSD video information based on the file name information currently stored in the storage unit 5, outputs the OSD video information to the video synthesis unit 3, and displays a list of file names on a television (not shown). Here, the file name of the file that cannot be recognized is removed from the display.

  Further, when the highlight is moved to “No” by the remote control operation on the file recognition disabled setting screen and the determination operation is performed by the remote control (N in Step S11), the process returns to Step S2, and the control unit 4 displays the current storage unit 5 The OSD video information is generated based on the file name information stored in the video and is output to the video composition unit 3, and the file names are displayed in a list on a television (not shown). Here, the same file name list display as when the file name is selected in step S4 is displayed.

  In step S3, when the DVD reproducing unit 1 ejects the tray by the user operation and the control unit 4 detects this (Y in step S3), the control unit 4 stores the file name information currently stored in the storage unit 5 All the recording position information is discarded. This prevents information from being mixed even when a new DVD is inserted.

  As described above, according to the present invention, it is possible to make an unreproducible file unrecognizable due to any of an authority error, a rental count outage, or a resolution error, and the user can select and reproduce the file thereafter. Since this is not possible, it is possible to eliminate the inconvenience of erroneously reproducing an unreproducible file and displaying an error.

  In addition, since the file cannot be recognized after the file recognition disabled setting screen is displayed and the user selects to make the file unrecognizable, the file cannot be recognized suddenly and the user is not confused.

These are the schematic block diagrams of the optical disk reproducing | regenerating apparatus based on this invention. These are flowcharts regarding file reproduction according to the present invention. These are figures which show an example of a file recognition impossibility setting screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 DVD reproducing part 2 Decoder 3 Image | video synthetic | combination part 4 Control part 5 Memory | storage part 6 Remote control receiving part

Claims (4)

In an optical disc playback apparatus comprising an optical disc playback section, a control section, a storage section, and a display signal output section,
When an optical disc is inserted into the optical disc reproducing unit, the optical disc reproducing unit reproduces each recording position information corresponding to each file recorded on the optical disc from the optical disc, and each reproduced recording position information is transmitted to the control unit. Is stored in the storage unit,
Thereafter, when any one of the files is selected by the operating means, the optical disc playback unit plays back the optical disc based on the recording position information stored in the storage unit corresponding to the selected file. When one of the authority error, the rental count expires, and the resolution error occurs, the display signal output unit selects execution of deletion of the recording position information stored in the storage unit corresponding to the selected file. When the display means outputs a display signal for causing the display means to display, and the execution means is selected by the operation means, the control section stores data in the storage section corresponding to the selected file. An optical disc playback apparatus that deletes stored recording position information,
When the optical disc playback unit ejects the optical disc, the control unit discards all the recording position information stored in the storage unit. In an optical disc playback apparatus including an optical disc playback unit, a control unit, and a storage unit,
When an optical disc is inserted into the optical disc reproducing unit, the optical disc reproducing unit reproduces each recording position information corresponding to each file recorded on the optical disc from the optical disc, and each reproduced recording position information is transmitted to the control unit. Is stored in the storage unit,
Thereafter, when any one of the files is selected by the operating means, the optical disc playback unit plays back the optical disc based on the recording position information stored in the storage unit corresponding to the selected file. The control unit deletes the recording position information stored in the storage unit corresponding to the selected file when any of an authority error, a rental count expired, or a resolution error occurs. Optical disk playback device. A display signal output unit;
When one of the authority error, the rental count expired, or the resolution error occurs, the display signal output unit executes deletion of the recording position information stored in the storage unit corresponding to the selected file. When the display unit outputs a display signal for causing the display unit to select a display, and the operation unit selects the deletion execution, the control unit stores the memory corresponding to the selected file. The optical disk reproducing apparatus according to claim 2, wherein the recording position information stored in the recording unit is deleted.   3. The optical disk reproducing apparatus according to claim 2, wherein when the optical disk reproducing unit ejects the optical disk, the control unit discards all the recording position information stored in the storage unit.

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