JP2012018710A - Optical disk recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical disk recording device in which, after contents of edition processing performed to the title recorded in an optical disk are written to the optical disk, the contents can be restored to the state before edition.SOLUTION: An optical recording device comprises a recording part for recording a title in an optical disk, an edition processing part for controlling the recording part in editing the title recorded in the optical disk (means for performing the processing of Step S60), a backup processing part for backuping data to be changed in a recording medium before the edition processing in execution processing of the edition (means for performing the processing of Step S50) and a restoration processing part for restoring the data to the state before the edition by recording the data backuped by the backup processing part in the optical disk (means for performing the processing of Step S70).

Description

  The present invention relates to an optical disc recording apparatus for recording a title on an optical disc.

  An optical disk recording apparatus is generally capable of performing editing such as deletion, partial deletion, chapter insertion, and playlist creation on a title recorded on an optical disk. Here, the title is a unit indicating a stream to be edited at a time, and corresponds to, for example, program data obtained by one recording.

JP 2007-214807 A (paragraph 0020) JP 2008-152892 A (Claim 4) JP 2007-89020 A (Claim 5) JP 2008-31723 A (paragraph 0006) JP 2003-224811 A (paragraphs 0044 to 0047)

  The conventional optical disk recording apparatus has a problem that when the content of the editing process performed on the title recorded on the optical disk is written on the optical disk, it cannot be restored to the state before editing.

  Note that Patent Document 1 discloses a recorded program editing system that retains the editing process and can return to the operation when it is desired to change any of the editing processes. In the program editing system, it is not possible to restore the state before editing after the content of the editing process is confirmed. Therefore, the recorded program editing system disclosed in Patent Document 1 does not solve the above problem.

  Further, Patent Document 2 discloses a recording / reproducing apparatus that processes batch deletion of a plurality of titles when the power is turned off. However, the recording / reproducing apparatus cannot restore the state before the batch deletion after the batch deletion. Therefore, the recording / reproducing apparatus disclosed in Patent Document 2 does not solve the above problem.

  Further, Patent Document 3 discloses a recording / reproducing apparatus that forms a display output of a selection screen indicating whether or not recording can be erased upon completion of reproduction of the recording of a title to which title erasure classification information is added. The playback device cannot restore the state before erasure after the title erasure selection is confirmed and the title is erased. Therefore, the recording / reproducing apparatus disclosed in Patent Document 3 does not solve the above problem.

  Further, Patent Document 4 discloses a video editing apparatus that can quickly search for target video data and can immediately resume editing even when the user accidentally interrupts editing. Although disclosed, the video editing apparatus cannot restore the state before editing after the content of the editing process is confirmed. Therefore, the video editing apparatus disclosed in Patent Document 4 does not solve the above problem.

  Further, Patent Document 5 discloses a PVR recording device that can return editing to the original state by returning the designation of the segment, but after the content of the editing process is confirmed in the PVR recording device. It is not possible to restore the state before editing (after the editing completion operation). Therefore, the PVR recording device disclosed in Patent Document 5 does not solve the above problem.

  In view of the above situation, the present invention provides an optical disc recording apparatus capable of restoring the state before editing after the content of the editing process performed on the title recorded on the optical disc has been written on the optical disc. The purpose is to do.

  In order to achieve the above object, an optical disc recording apparatus according to the present invention includes a recording unit that records a title on an optical disc, and an editing process that controls the recording unit when editing the title recorded on the optical disc. A backup processing unit that backs up data to be changed in the execution process of the editing to a recording medium before the execution process of the editing, and the data backed up by the backup processing unit is recorded on the optical disc And a restoration processing unit that executes processing for restoring to a state before editing.

  According to such a configuration, after the content of the editing process performed on the title recorded on the optical disc is written on the optical disc, it can be restored to the state before editing. Thereby, even when the user performs an erroneous editing, the editing can be performed again, so that convenience is improved. Further, since the size of the data to be backed up by the backup processing unit is relatively small, the occupation rate of the recording medium with respect to the data to be backed up by the backup processing unit is hardly a problem.

  It is desirable that the backup by the backup processing unit is automatically performed before the editing execution process.

  Further, when the editing processing unit edits the title recorded on the DVD formatted in the VR mode, the backup processing unit backs up the navigation information and the partition information included in the file system information. To do.

  In addition, when the editing processing unit edits the title recorded on the DVD formatted in the video mode, the backup processing unit backs up only the navigation information.

  Examples of the recording medium include a hard disk mounted on the optical disc recording apparatus.

  According to the present invention, it is possible to realize an optical disc recording apparatus that can restore the state before editing after the content of the editing process performed on the title recorded on the optical disc has been written on the optical disc.

These are figures which show one schematic structural example of the optical disk recording device based on this invention. These are the flowcharts which show the operation | movement relevant to the editing of the optical disk recording device shown in FIG. These are figures which show the example of a display of an edit menu in case DVD is in video mode. These are figures which show the example of a display of an edit menu in case DVD is in VR mode.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration example of an optical disk recording apparatus according to the present invention.

  The optical disk recording apparatus shown in FIG. 1 is a HDD (Hard Disk Drive) -installed DVD recorder, which includes a tuner 1, a video / audio processing unit 2, an OSD (On Screen Display) unit 3, an output unit 4, and an HDD recording. A playback unit 5, a DVD recording / playback unit 6, a control unit 7, a nonvolatile memory 8, and a light receiving unit 9 are provided. The control unit 7 is a main body of the editing processing unit, the backup processing unit, and the restoration processing unit described in the claims.

  The tuner 1 selects and demodulates a television broadcast signal received from the antenna 10 (for example, OFDM (Orthogonal Frequency Division Multiplexing) demodulation). The video / audio processing unit 2 sends the video / audio signal received from the tuner 1 or the video / audio signal reproduced by the HDD recording / reproducing unit 5 or the DVD recording / reproducing unit 6 to the output unit 4, or the video / audio signal received from the tuner 1. Are sent to the HDD recording / reproducing unit 5 or the DVD recording / reproducing unit 6. The OSD unit 3 sends the OSD image data generated based on the instruction from the control unit 7 to the output unit 4. The output unit 4 outputs a synthesized video signal obtained by synthesizing the video signal received from the video / audio processing unit 2 and the OSD image data received from the OSD unit 3 to the outside, or the video / audio processing unit 2 without performing the synthesis process. The video signal received from the video signal is output to the outside as it is, the OSD image data received from the OSD unit 3 is output as it is without performing the above synthesis process, or the audio signal received from the video / audio processing unit 2 is output to the outside To do. The output signal of the output unit 4 is sent to a television receiver (not shown) connected to the optical disk recording apparatus shown in FIG. The television receiver connected to the optical disk recording apparatus shown in FIG. 1 performs video display and audio output based on the output signal of the output unit 4.

  The HDD recording / reproducing unit 5 records the video / audio signal received from the video / audio processing unit 2 on the hard disk or reproduces the video / audio signal recorded on the hard disk. The DVD recording / reproducing unit 6 records the video / audio signal received from the video / audio processing unit 2 on a DVD or reproduces the video / audio signal recorded on the DVD. The DVD is detachably attached to the DVD recording / reproducing unit 6.

  The light receiving unit 9 receives a remote control infrared signal transmitted from a remote control transmitter (not shown), converts it into an electrical signal, extracts an operation code from the electrical signal, and outputs the operation code to the control unit 7. The control unit 7 includes a control program stored in the non-volatile memory 8 and various settings (for example, a data table indicating a correspondence relationship between each operation code and each function), an operation code received from the light receiving unit 9, Each part of the optical disk recording apparatus shown in FIG. 1 is controlled according to an operation code determined by a signal output from an operation key group (not shown) provided in the main body of the optical disk recording apparatus shown in FIG.

  An operation related to editing of the optical disk recording apparatus shown in FIG. 1 having the above-described configuration will be described with reference to a flowchart shown in FIG.

  When the user performs an operation for instructing display of the edit menu to the remote control transmitter or the operation key group provided on the main body of the optical disc recording apparatus shown in FIG. 1, the flowchart operation of FIG. 2 starts.

  First, in step S10, OSD image data for displaying an edit menu is output from the output unit 4, and the edit menu is displayed on the display screen of the television receiver connected to the optical disc recording apparatus shown in FIG. FIG. 3 shows a display example of the edit menu when a DVD-R formatted in the video mode or a DVD-RW formatted in the video mode is mounted on the DVD recording / reproducing unit 6, and is formatted in the VR mode. FIG. 4 shows a display example of the edit menu when a DVD-R, a DVD-RW formatted in the VR mode, or a DVD-RAM formatted in the VR mode is mounted on the DVD recording / reproducing unit 6. Show. Note that the control unit 7 determines the type and mode of the DVD in advance by loading when the DVD is loaded into the DVD recording / reproducing unit 6 or when the power is turned on.

  In step S20 following step S10, the control unit 7 performs an operation for the user to select an item in the edit menu with respect to an operation key group provided on the remote control transmitter or the main body of the optical disc recording apparatus shown in FIG. Determine whether or not. If an item in the edit menu is selected (YES in step S20), the process proceeds to step S30.

  In step S30, the control unit 7 determines whether or not the item of the selected editing menu is “return to before editing”. If the item of the selected edit menu is not “return to edit” (NO in step S30), the process proceeds to step S40. On the other hand, if the item of the selected editing menu is “return to editing” (YES in step S30), the process proceeds to step S70.

  In step S40, the control unit 7 performs an operation (for example, pressing of the enter key) for the user to confirm the selection to the operation key group provided on the remote control transmitter or the main body of the optical disc recording apparatus shown in FIG. Judge whether or not. When the selection is confirmed (YES in step S40), the process proceeds to step S50.

  In step S50, the control unit 7 causes the HDD recording / reproducing unit 5 to record data to be changed in the process of step S60 described later. Thereby, the data to be changed in the process of step S60 described later can be backed up before the change.

  In step S60 following step S50, the control unit 7 instructs the DVD recording / reproducing unit 6 to perform recording in accordance with the edited content, and then executes the editing, and thereafter ends the flow operation.

  In a DVD, a title is managed and configured by navigation information, file system information, and stream information. The stream information is not changed unless the disk format or additional recording is performed. In the DVD formatted in the video mode, file system information is created at the time of finalization. Accordingly, when a DVD formatted in the video mode is loaded in the DVD recording / reproducing unit 6, the data to be changed in the process of step S60 is only navigation information. On the other hand, when a DVD formatted in the VR mode is loaded in the DVD recording / reproducing unit 6, the data to be changed in the process of step S60 is the VR_MANGR.IFO file which is navigation information, and the file system information. It becomes the partition information included in.

  As described above, if the selected item in the edit menu is “return to edit” (YES in step S30), the process in step 70 is performed. In step S70, the control unit 7 instructs the DVD recording / reproducing unit 6 to record the data backed up in the HDD recording / reproducing unit 5 in the processing of step S50 executed in the past, and restores the state before editing. Execute the flow operation after that.

  By the operation as described above, after the content of the editing process performed on the title recorded on the DVD has been written on the DVD, it can be restored to the state before editing. From the viewpoint of preventing erroneous restoration, it is desirable that the data backed up in step S50 is discarded when an additional recording image, a disk taken out from the DVD recording / reproducing unit 6 or the power is turned off. When the data being backed up in step S50 is discarded, for example, the item “return to before editing” in the edit menu display shown in FIGS. 3 and 4 may be grayed out.

  As mentioned above, although embodiment which concerns on this invention was described, the range of this invention is not limited to this, A various change can be added and implemented in the range which does not deviate from the main point of invention.

  For example, in the above-described embodiment, the optical disk is a DVD, but the present invention may be applied to an optical disk recording apparatus that records a title on an optical disk other than a DVD.

  Further, for example, in the above-described embodiment, the data to be changed in the editing execution process is backed up on the hard disk of the HDD recording / reproducing unit 5, but may be recorded on a recording medium other than the hard disk. For example, it may be backed up to a non-volatile memory such as a flash memory built in the optical disk recording device or a temporary storage memory such as a RAM (Random Access Memory), or a USB (Universal Serial Bus) connector or the like to the optical disk recording device. When an external memory interface such as an SD card slot is provided, backup may be performed to an external memory connected to the external memory interface.

  Further, for example, in the above-described embodiment, a television broadcast program is recorded on an optical disc, but the present invention can also be applied to a title that is a record of data other than the television broadcast program as an object to be edited. For example, when an external input terminal is provided in the optical disk recording apparatus, a title that is a record of externally input data can be set as an editing target.

  Further, for example, in the above-described embodiment, as shown in FIG. 2, if the item of the selected editing menu is “return to editing” (YES in step S30), the processing in step 70 is performed. However, you may deform | transform into the form which provides the step same as step S40 between step S30 and step S70.

DESCRIPTION OF SYMBOLS 1 Tuner 2 Video / audio processing part 3 OSD part 4 Output part 5 HDD recording / reproducing part 6 DVD recording / reproducing part 7 Control part 8 Non-volatile memory 9 Light receiving part 10 Antenna

Claims (5)

A recording unit for recording a title on an optical disc;
An editing processing unit that controls the recording unit when editing the title recorded on the optical disc;
A backup processing unit that backs up data to be changed in the execution process of the editing to a recording medium before the execution process of the editing;
An optical disc recording apparatus comprising: a restoration processing unit that executes processing for restoring data backed up by the backup processing unit to a state before the editing by recording the data on the optical disc.   The optical disk recording apparatus according to claim 1, wherein backup by the backup processing unit is automatically performed before the editing execution process. When the editing processing unit edits the title recorded on the DVD formatted in the VR mode,
The optical disk recording apparatus according to claim 1, wherein the backup processing unit backs up navigation information and partition information included in file system information. When the edit processing unit edits the title recorded on the DVD formatted in the video mode,
The optical disk recording apparatus according to claim 1, wherein the backup processing unit backs up only navigation information.   The optical disk recording apparatus according to claim 1, wherein the recording medium is a hard disk mounted on the optical disk recording apparatus.