JP2009076175A - Optical disk recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk recording device capable of writing a content video-recorded in an HDD in an optical disk at high speed independently of the speed of a transcoding converting the data of a MPEG2-TS form to data of a MPEG2-PS form, or converting the data of the MPEG-PS form to data of the MPEG2-TS form. <P>SOLUTION: The optical disk device is provided with the HDD 11 performing read-out and write-in of data for a built-in hard disk, and an optical disk drive 12 in which read-out and write-in of data can be performed for at least two kinds of optical disks. The HDD 11 stores contents of an object of HDD-video-recording in the hard disk with two kinds of the data of the MPEG2-TS form and the data of the MPEG2-PS form, then the data of the MPEG2-TS form and the data of the MPEG2-PS form of the same contents are managed as one data. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an optical disk recording apparatus, and more particularly to an optical disk recording apparatus having an HDD (Hard Disk Drive).

  A conventional optical disk recording apparatus having an HDD performs HDD recording in the MPEG2-TS (Transport Stream) format or the MPEG2-PS (Program Stream) format. In an optical disk recording apparatus having a conventional HDD, digital broadcast program HDD recording is performed in MPEG2-TS format, and analog broadcast program or video / audio signal input to an external input terminal is recorded in MPEG2-PS format. Some models perform this, while others model HDD recording in the MPEG2-TS format.

JP 2003-101927 A JP 2007-122771 A JP 2002-165188 A JP 2004-159085 A JP 2006-42382 A

  An optical disc having a conventional HDD of the type in which HDD recording of digital broadcast programs is performed in MPEG2-TS format, and HDD recording of analog broadcast programs or external input video / audio signals input to an external input terminal is performed in MPEG2-PS format. In the recording apparatus, there is no problem when a digital broadcast program recorded on the HDD is written on a BD (Blu-ray Disc) or an analog broadcast program recorded on the HDD or an external input video / audio signal is written on the DVD. However, when a digital broadcast program recorded on an HDD is written on a DVD, transcoding for converting MPEG2-TS format data into MPEG2-PS format data is required. Similarly, when an analog broadcast program recorded on an HDD or an externally input video / audio signal is written to a BD, transcoding for converting MPEG2-PS format data into MPEG2-TS format data is required.

  Further, in an optical disc recording apparatus having a conventional HDD of the type in which HDD recording is unified into the MPEG2-TS format, there is no problem when a broadcast program recorded on the HDD or an externally input video / audio signal is written to the BD. However, when a broadcast program recorded on an HDD or an externally input video / audio signal is written on a DVD, transcoding for converting MPEG2-TS format data into MPEG2-PS format data is required.

  With the current encoder chip, it takes time to transcode MPEG2-TS format data into MPEG2-PS format data or MPEG2-PS format data into MPEG2-TS format data. For this reason, when dubbing or moving the content recorded on the HDD to the optical disc, the transcoding is necessary, there is a problem that constant speed dubbing or moving is performed and high speed dubbing or moving cannot be performed.

  The format conversion device and the format conversion method proposed in Patent Document 1 convert a data stream of a first format to which time stamp information is added into a data format of a second format, and When dubbing or moving recorded content to an optical disc, transcoding is required to convert MPEG2-TS format data to MPEG2-PS format data or MPEG2-PS format data to MPEG2-TS format data. In this case, the problem is that constant speed dubbing or moving is performed, and high speed dubbing or moving is not possible.

  In addition, the video / audio data recording apparatus, the video / audio data recording method, and the video / audio data recording program proposed in Patent Document 2 take out a chapter from the first recording medium as pre-dubbing data, The data is converted into a format, output as converted dubbing data, the converted dubbing data and the playlist are combined, and dubbed as data after dubbing to a second recording medium. In this dubbing, when transcoding for converting MPEG2-TS format data to MPEG2-PS format data or MPEG2-PS format data to MPEG2-TS format data is required, constant-speed dubbing or It becomes a move and high-speed dubbing or move is not possible. It does not solve the problem.

  The content distribution method and content data recording / reproducing method and apparatus proposed in Patent Document 3 separate TS data from a received signal, extract only the payload portion of TS data, and record it as PS data on the HDD. In the dubbing or moving of the content recorded on the HDD to the optical disc, the MPEG2-TS format data is converted into the MPEG2-PS format data, or the MPEG2-PS format data is converted into the MPEG2-TS format data. When transcoding is required, constant speed dubbing or moving is performed, and this does not solve the problem that high speed dubbing or moving cannot be performed.

  In addition, the recording / reproducing apparatus proposed in Patent Document 4 outputs a PS format signal read from a DVD device, and records a TS format signal output from a digital broadcast tuner in the HDD format in the TS format. When dubbing or moving content recorded on an HDD to an optical disk, MPEG2-TS format data is converted into MPEG2-PS format data, or MPEG2-PS format data is converted into MPEG2-TS format data. When transcoding to be converted is required, constant-speed dubbing or moving is performed, and the problem that high-speed dubbing or moving cannot be performed is not solved.

  The stream converter proposed in Patent Document 5 sets a PCR when decoding a converted TS in a PS / TS converter, and converts the PS into a TS while multiplexing the set PCR. When dubbing or moving content recorded on an HDD to an optical disk, MPEG2-TS format data is converted into MPEG2-PS format data, or MPEG2-PS format data is converted into MPEG2-TS format data. When transcoding to be converted is required, constant-speed dubbing or moving is performed, and the problem that high-speed dubbing or moving cannot be performed is not solved.

  In view of the above situation, the present invention depends on the transcoding speed for converting MPEG2-TS format data to MPEG2-PS format data or MPEG2-PS format data to MPEG2-TS format data. It is another object of the present invention to provide an optical disk recording apparatus capable of writing HDD recorded content on an optical disk at high speed.

  In order to achieve the above object, an optical disk recording apparatus according to the present invention includes an HDD that reads and writes data to a built-in hard disk, and an optical disk drive that can read and write data to at least two types of optical disks. The HDD stores contents to be recorded on the HDD in the hard disk in two types of MPEG2-TS format data and MPEG2-PS format data, and MPEG2-TS format data of the same content and MPEG2-PS. The format data is managed as a single data.

  According to such a configuration, when the content recorded on the HDD is written onto the optical disc at high speed, the data in the MPEG2-TS format is converted into the data in the MPEG2-PS format, or the data in the MPEG2-PS format is converted into the data in the MPEG2-TS format. There is no need to transcode data. For this reason, the data recorded on the HDD is not dependent on the transcoding speed for converting the data in the MPEG2-TS format into the data in the MPEG2-PS format or the data in the MPEG2-PS format into the data in the MPEG2-TS format. Content can be written to an optical disc at high speed. Thereby, it is possible to reduce the work waiting time of the user when dubbing or moving the content recorded on the HDD to the optical disc.

  In the optical disk recording apparatus, the optical disk drive can read and write data to at least a BD and a DVD. When dubbing or moving content recorded on the HDD to the BD, the MPEG2-TS is used. Data in the format may be written on the BD as write data, and data in the MPEG2-PS format may be written on the DVD as write data when dubbing or moving content recorded on the HDD to the DVD.

  In addition, in the above optical disk recording apparatus in which the optical disk drive can read and write data to at least BD and DVD, a system load determination unit for determining whether or not a system load is applied, and an MPEG2-TS format A TS-PS conversion unit for converting data into MPEG2-PS format data, and when recording an HDD, the HDD stores the content to be recorded on the HDD in the hard disk as MPEG2-TS format data, and When the system load determination unit determines that the system load is not applied, the TS-PS conversion unit converts the MPEG2-TS format data of the HDD recording target content into MPEG2-PS format data, The HDD is obtained by conversion in the TS-PS converter. It may be stored the data of MPEG2-PS format of the HDD recording target content.

  According to such a configuration, when the system load is not applied, the TS-PS converter converts the MPEG2-TS format data of the content to be recorded on the HDD into the MPEG2-PS format data. Two-pass encoding can be used for conversion in the conversion unit, and image quality deterioration and sound quality deterioration can be minimized.

  From the viewpoint of copy management, in the above optical disk recording apparatus in which the optical disk drive can read and write data to at least BD and DVD, when moving the contents recorded on the HDD to BD or DVD, , Deviating from the principle of managing MPEG2-TS format data and MPEG2-PS format data of the same content as one data, deleting data in a format in which the HDD was not selected as the export data from the hard disk, Thereafter, the optical disk drive may write the write data on a BD or DVD.

  The optical disk recording apparatus according to the present invention depends on the transcoding speed for converting MPEG2-TS format data into MPEG2-PS format data or MPEG2-PS format data into MPEG2-TS format data. In addition, content recorded on the HDD can be written onto the optical disc at high speed.

  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. An optical disk recording apparatus 1 shown in FIG. 1 includes a digital tuner 2, a demodulation unit 3, an analog tuner 4, an external input unit 5, a switching unit 6, and an MPEG2 encoder 7.

  Further, the optical disk recording apparatus 1 shown in FIG. 1 includes a TS-PS converter 8 that converts MPEG2-TS format data to MPEG2-PS format data, and MPEG2-PS format data to MPEG2-TS format data. PS-TS converter 9 for conversion, control unit 10 for controlling the entire optical disc recording apparatus 1, HDD 11 for reading and writing data to the built-in hard disk, and reading and writing data for BD and DVD In accordance with the instructions of the control unit 10 and the optical disc drive 12 capable of recording, the output signal of the demodulation unit 3 or the output signal of the MPEG2 encoder is temporarily recorded at the time of HDD recording or optical disc recording, and the optical disc of the content recorded on the HDD When dubbing or moving to the HDD 11, data is received from the HDD 11 and temporarily A buffer memory 13 for recording, a flash memory 14 for storing various setting information in a nonvolatile manner, an infrared signal received from a remote control transmitter (not shown), and a code signal corresponding to a user's remote control operation is output to the control unit 10 The remote control receiving unit 15 and an operation unit 16 that includes various operation buttons and outputs a code signal corresponding to the operation button pressed by the user to the control unit 10 are provided.

  The MPEG2 encoder 7, the TS-PS converter 8, and the PS-TS converter 9 are provided in one encoder chip. The bit rate at the time of transcoding in the TS-PS converter 8 and the PS-TS converter 9 can be changed by a user's remote control operation or the like.

  The optical disk recording apparatus 1 shown in FIG. 1 also has a so-called output system part, but since it is not directly related to the characteristic part of the present invention, the illustration and description regarding the output system part are omitted. Further, a digital TV broadcast receiving antenna (not shown) is externally connected to the digital tuner 2, and an analog TV broadcast receiving antenna (not shown) is externally connected to the analog tuner 4.

  The digital tuner 2 can select a terrestrial digital broadcast, a BS digital broadcast, and a 110 ° CS digital broadcast. The digital tuner 2 down-converts a signal selected according to an instruction from the control unit 10 and outputs the signal to the demodulation unit 3. The demodulator 3 digitally demodulates the output signal of the digital tuner 2 and outputs data in the MPEG2-TS format to the controller 10.

  The analog tuner 4 can select a terrestrial analog broadcast, down-converts a signal selected according to an instruction from the control unit 10 into an IF signal, demodulates the IF signal by a built-in analog TV demodulator, and switches the switching unit. 6 is output. The external input unit 5 receives an input of an analog video / audio signal from the outside, and outputs the analog video / audio signal to the switching unit 6. The switching unit 6 selects either the signal output from the analog tuner 4 or the signal output from the external input unit 5 in accordance with an instruction from the control unit 10 and outputs the selected signal to the MPEG2 encoder 7. The MPEG2 encoder 7 digitally converts the output signal of the switching unit 6, encodes it into MPEG2-PS format data, and outputs it to the control unit 10.

  The operation of HDD recording in the optical disk recording apparatus 1 shown in FIG. 1 having the above configuration will be described below with reference to FIG. When HDD recording is instructed by a user's remote control operation or the like, the flow operation shown in FIG. 2 starts.

  First, in step S10, the content to be recorded on the HDD is stored in a hard disk in the HDD 11 in the MPEG2-TS format. When the content to be recorded on the HDD is a digital broadcast program, transcoding is not necessary in step S10 because Japanese digital broadcast adopts the MPEG2-TS format. On the other hand, if the content to be recorded on the HDD is an analog broadcast program or an external analog video / audio signal, the output signal (MPEG2-PS format data) of the MPEG2 encoder 7 is converted into MPEG2-TS by the PS-TS converter 9. After converting to TS format, it is stored in the hard disk in the HDD 11.

  When HDD recording is started in step S10, in parallel with the execution of HDD recording, the control unit 10 determines whether a system load is applied (step S20). When a system load such as chasing playback is applied during HDD recording (YES in step S20), transcoding from the MPEG2-TS format to the MPEG2-PS format is not performed (step S30), and the determination in step S20 is continued. On the other hand, when there is no system load such as HDD recording without chasing playback or standby after HDD recording is finished (NO in step S20), the data in the MPEG2-TS format stored in the hard disk in the HDD 11 in step S10. The TS-PS converter 8 performs transcoding to convert the data into MPEG2-PS format data, and writes the MPEG2-PS format data obtained by the transcoding to the hard disk in the HDD 11 (step S40). Since data in MPEG2-TS format is converted into data in MPEG2-PS format when no system load is applied, 2-pass encoding can be used for the conversion, minimizing image quality degradation and sound quality degradation. Can be suppressed.

  As a result of the processing in step S40, the content to be recorded on the HDD is stored on the hard disk in the HDD 11 as two types of data, MPEG2-TS format data and MPEG2-PS format data. The HDD 11 manages the MPEG2-TS format data and the MPEG2-PS format data of the same content as one data.

  Next, the operation of dubbing or moving content recorded on the HDD to the optical disc in the optical disc recording apparatus 1 shown in FIG. 1 will be described with reference to FIG. When dubbing or moving is instructed by a user's remote control operation or the like, the operation of the flow shown in FIG. 3 starts.

  First, in step S110, the control unit 10 operates the optical disc drive 12 to determine the type of the optical disc set in the optical disc drive 12, that is, the type of the write destination medium.

  If the write destination medium is BD, the control unit 10 sets the dubbing or moving content MPEG2-TS format data stored in the hard disk of the HDD 11 as the write data (step S120), and proceeds to step S140. . On the other hand, if the destination medium is a DVD, the control unit 10 sets the MPEG2-PS format data of the content to be dubbed or moved stored in the hard disk of the HDD 11 as the export data (step S130), and the process proceeds to step S140. Transition.

  In step S140, the control unit 10 determines whether the type of the writing operation is dubbing based on the code signal output from the remote control receiving unit 15 or the operation unit 16 when the dubbing or moving is instructed by the user's remote control operation or the like. Determine if it is a move.

  If the type of writing operation is dubbing, the process immediately proceeds to step S160. On the other hand, if the type of the export operation is move, it is out of the principle of managing the MPEG2-TS format data and the MPEG2-PS format data of the same content as one data from the viewpoint of copy management, and is selected as the export data. The unformatted data is deleted from the hard disk of the HDD 11 (step S150), and the process proceeds to step S160. The data in a format not selected as the export data is the MPEG2-PS format data of the content to be moved if the export destination medium is BD, and the data of the content to be moved if the export destination medium is a DVD. MPEG2-TS format data.

  In step S160, the optical disc drive 12 writes the write data set in step S120 or step S130 onto the optical disc in accordance with the control of the control unit 10. In the case of a move, the write data is deleted from the hard disk of the HDD 11 after the write data has been written to the optical disk.

  Since the optical disk recording apparatus 1 shown in FIG. 1 performs the flow operation shown in FIG. 2 and the flow operation shown in FIG. 3, when data recorded on the HDD is written onto the optical disk at high speed, MPEG2-TS format data is converted into MPEG2. -Transcoding that converts data in the PS format or data in the MPEG2-PS format into data in the MPEG2-TS format is not performed. For this reason, the optical disc recording apparatus 1 shown in FIG. 1 performs transcoding speed for converting MPEG2-TS format data into MPEG2-PS format data or MPEG2-PS format data into MPEG2-TS format data. The content recorded on the HDD can be written to the optical disc at high speed without depending on the. Thereby, it is possible to reduce the work waiting time of the user when dubbing or moving the content recorded on the HDD to the optical disc.

These are figures which show the example of schematic structure of the optical disk recording device based on this invention. These are the flowcharts which show the operation | movement of HDD recording in the optical disk recording device shown in FIG. These are the flowcharts which show the operation of dubbing or moving content recorded on the HDD to the optical disc in the optical disc recording apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical disk recording device 2 Digital tuner 3 Demodulation part 4 Analog tuner 5 External input part 6 Switching part 7 MPEG2 encoder 8 TS-PS conversion part 9 PS-TS conversion part 10 Control part 11 HDD
12 Optical disk drive 13 Buffer memory 14 Flash memory 15 Remote control receiver 16 Operation unit

Claims (4)

HDD that reads and writes data to the built-in hard disk,
An optical disc drive capable of reading and writing data to at least two types of optical discs;
The HDD stores the content to be recorded on the HDD in the hard disk in two types of data, MPEG2-TS format data and MPEG2-PS format data, and stores the MPEG2-TS format data and MPEG2-PS format data of the same content. An optical disc recording apparatus that manages the data as one piece of data. The optical disc drive is capable of reading and writing data to at least BD and DVD,
When dubbing or moving content recorded on the HDD to the BD, MPEG2-TS format data is written to the BD as write data, and when dubbing or moving the content recorded on the HDD to the DVD, MPEG2- The optical disk recording apparatus according to claim 1, wherein PS format data is written on a DVD as write data. A system load determination unit that determines whether or not a system load is applied; and a TS-PS conversion unit that converts MPEG2-TS format data into MPEG2-PS format data,
When recording the HDD, the HDD stores the content to be recorded on the HDD in the hard disk as MPEG2-TS format data, and when the system load determination unit determines that no system load is applied, the TS A PS conversion unit converts MPEG2-TS format data of the content to be recorded on the HDD into MPEG2-PS format data, and the HDD records the HDD recording obtained by the conversion in the TS-PS conversion unit; The optical disk recording apparatus according to claim 2, wherein MPEG2-PS format data of the target content is stored.   When moving the content recorded on the HDD to a BD or DVD, the HDD deviates from the principle of managing the MPEG2-TS format data and the MPEG2-PS format data of the same content as one data. 3. The optical disk recording apparatus according to claim 2, wherein data in a format not selected as data is deleted from the hard disk, and then the optical disk drive writes the write data to a BD or DVD.

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