Information Recording/Reproducing Apparatus

• US 20080310498A1
• Filed: 03/28/2008
• Published: 12/18/2008
• Est. Priority Date: 06/13/2007
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: MARUMORI, Hiroyuki
• Application Number:
  US12/057,410
• Publication Number:
  US 20080310498A1
• Time in Patent Office: Days
• US Class Current: 375/240.01
• CPC Class Codes: G11B 2220/2541 Blu-ray discs; Blue laser DVR discs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: H04N 5/772 the recording apparatus and the television camera being placed in the same enclosure
• CPC Class Codes: H04N 5/781 on disks or drums
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 5/907 using static stores, e.g. storage tubes or semiconductor memories H04N5/91 takes precedence
• CPC Class Codes: H04N 9/7921 for more than one processing mode
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: H04N 9/8063 using time division multiplex of the PCM audio and PCM video signals
• CPC Class Codes: H04N 9/8205 involving the multiplexing of an additional signal and the colour video signal

Abstract

There are provided an information recording/reproducing apparatus and a video camera, both compliant with plural standards and excellent in usability, within an advantageously earlier stage by simplifying a circuit configuration and reducing the development steps and time period. A compression/extension module includes a common compression/extension module which performs a process of a compression method common in plural standards. For example, the common compression/extension module common between the AVCHD standard and the BD standard performs a process of the H.264 compression method for a video signal, and performs a process of the Dolby Digital compression method for an audio signal. A format controlling module includes a common format generating module which performs a formatting process common in plural standards. For example, the common format generating module common between the AVCHD standard and the BD standard generates a format including data structures and directories, in compliance with the BDMV subset.

Claims

1. An information recording/reproducing apparatus adapted to a plurality of recording media and to record and/or reproduce data in compliance with a plurality of standards, comprising:

a compression/extension module which compresses and extends an information signal in compression methods compliant with the plurality of standards;

a format controlling module which generates formats compliant with the plurality of standards for the information signal; and

a recording/reproducing module which records/reproduces the processed data into/from the recoding media,

wherein the compression/extension module includes a common compression/extension module which performs a process of a compression method common in the plurality of standards, and

the format controlling module includes a common format generating module which performs a formatting process common in the plurality of standards.

2. The information recording/reproducing apparatus according to claim 1,

wherein the plurality of recording media include a DVD, a BD, an HDD, and a semiconductor memory, and

the standards for the DVD, the HDD, and the semiconductor memory include the AVCHD standard.

3. The information recording/reproducing apparatus according to claim 1,

wherein the common compression/extension module performs a process of the H.264 compression method for a video signal, and performs a process of the Dolby Digital compression method for an audio signal.

4. The information recording/reproducing apparatus according to claim 1,

wherein the common format generating module generates a format including common data structures and directories in compliance with the BDMV subset, and uses UDF as a file format.

5. The information recording/reproducing apparatus according to claim 4,

wherein the format controlling module further includes an individual format generating module which performs a formatting process of the unique standard, and

in the event of determination of the standard of the recording medium or formatting the recording medium, the individual format generating module obtains unique format information to be generated, and generates unique directories and management information files by utilizing the information.

6. The information recording/reproducing apparatus according to claim 1, further comprising:

a function of copying and moving data among the plurality of recording media and/or a function of recording data while performing data conversion compliant with the standards among the plurality of recording media.

7. The information recording/reproducing apparatus according to claim 6,

wherein in the event of data conversion between a format in the AVCHD standard and a format in the BD standard, common parts in directory configurations, management information of BDMV, and multiplexed video and audio streams are dubbed.

8. The information recording/reproducing apparatus according to claim 6,

wherein in the event of dubbing data recorded in the AVCHD standard into the DVD to the BD, the data in the AVCHD standard are converted into a format in the BD standard and dubbed to the HDD before recording the data in the HDD into the BD.

9. The information recording/reproducing apparatus according to claim 6,

wherein data in the AVCHD or BD standard recorded in the HDD are converted into a format in the DVD standard before recording the data into the DVD.

10. The information recording/reproducing apparatus according to claim 6,

wherein in the event of converting data in the BD standard recorded in the HDD into a format in the AVCHD standard before recording the data into the semiconductor memory, common parts in directory configurations, management information of BDMV, and multiplexed video and audio streams are dubbed.

11. A video camera apparatus which records shot video into a plurality of recording media, in compliance with a plurality of standards, comprising:

an imaging module which shoots a subject and obtains a video signal and an audio signal;

a compression/extension module which compresses and extends the video and audio signals in compression methods compliant with the plurality of standards;

a format controlling module which generates formats compliant with the plurality of standards for the video and audio signals;

a recording/reproducing module which records/reproduces the processed data into/from the recoding media including a BD, a DVD, an HDD, and an SD card; and

a system controlling module which controls an operation of each block,

wherein the compression/extension module includes a common compression/extension module common between the AVCHD standard and the BD standard which performs a process of the H.264 compression method for the video signal and performs a process of the Dolby Digital compression method for the audio signal, and

the format controlling module includes a common format generating module common between the AVCHD standard and the BD standard which generates a format including data structures and directories, in compliance with the BDMV subset.

12. The video camera apparatus according to claim 11,

wherein in the event of data conversion between a format in the AVCHD standard and a format in the BD standard, common formats generated by the common format generating module are dubbed.