Optical disk, and related apparatus and method

• US 20030086345A1
• Filed: 10/25/2002
• Published: 05/08/2003
• Est. Priority Date: 11/02/2001
• Status: Active Grant

• Current Assignee: JVC Kenwood Corporation
• Original Assignee: Victor Company of Japan Limited (JVC Kenwood Corporation)
• Inventors: Ueki, Yasuhiro
• Granted Patent: US 7,102,970 B2
• Time in Patent Office: Days
• US Class Current: 369/47.51
• CPC Class Codes: G11B 19/28 Speed controlling, regulating, or indicating G11B19/24 takes precedence
• CPC Class Codes: G11B 7/00456 Recording strategies, e.g. pulse sequences G11B7/0062 takes precedence
• CPC Class Codes: G11B 7/0062 Overwriting strategies, e.g. recording pulse sequences with erasing level used for phase-change media
• CPC Class Codes: G11B 7/00736 Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information sector headers or adresses in prepits G11B7/00745; address data in track wobble G11B7/24082
• CPC Class Codes: G11B 7/1267 Power calibration

Abstract

A laser-beam-scanned optical disc includes an information recording area and an information management area. The information management area stores recording management information having portions corresponding to respective integer multiples of a normal velocity relating to scanning of the disc. Each of the portions of the recording management information contains a first information piece representative of a recording strategy for recording of information on the information recording area and a second information piece representative of a recording laser power for recording of information on the information recording area.

Claims

1. A laser-beam-scanned optical disc including an information recording area and an information management area, the information management area storing recording management information having portions corresponding to respective integer multiples of a normal velocity relating to scanning of the disc, wherein each of the portions of the recording management information contains a first information piece representative of a recording strategy for recording of information on the information recording area and a second information piece representative of a recording laser power for recording of information on the information recording area.

3. A laser-beam-scanned optical disc as recited in claim 1, wherein the information management area recurrently stores a whole of the portions of the recording management information which correspond to the integer multiples of the normal velocity respectively.

2. A laser-beam-scanned optical disc including an information recording area and an information management area, wherein units of signal recording and signal reproduction on and from at least one of the information recording area and the information management area are blocks including first blocks each duplicately having a block address and second blocks each having both a block address and a management information piece, the information recording area storing blocks among the first blocks, the information management area storing the second blocks having recording management information including portions corresponding to respective integer multiples of a normal velocity relating to scanning of the disc, wherein each of the portions of the recording management information contains a first information piece representative of a recording strategy for recording of information on the information recording area and a second information piece representative of a recording laser power for recording of information on the information recording area.

4. A laser-beam-scanned optical disc including an information recording area and an information management area, wherein units of signal recording and signal reproduction on and from at least one of the information recording area and the information management area are blocks including first blocks each duplicately having a block address and second blocks each having both a block address and a management information piece, the information recording area storing blocks among the first blocks, the information management area storing the second blocks recurrently having recording management information including portions corresponding to respective integer multiples of a normal velocity relating to scanning of the disc, wherein each of the recording management information contains a first information piece representative of a recording strategy for recording of information on the information recording area and a second information piece representative of a recording laser power for recording of information on the information recording area, the information management area having a portion unoccupied by blocks among the second blocks and occupied by blocks among the first blocks.

5. An apparatus for recording and reproducing information on and from a laser-beam-scanned optical disc including an information recording area and an information management area, the information management area storing recording management information having portions corresponding to respective integer multiples of a normal velocity relating to scanning of the disc, wherein each of the portions of the recording management information contains a first information piece representative of a recording strategy for recording of information on the information recording area and a second information piece representative of a recording laser power for recording of information on the information recording area, the apparatus comprising:

first means for reading, from the information management area of the disc, one of the portions of the recording management information which corresponds to desired one of the normal velocity and the at least one integer multiple of the normal velocity;

second means for setting an actual recording strategy and an actual recording power of a laser beam in accordance with the recording strategy and the recording laser power represented by the portion of the recording management information which is read by the first means; and

third means for recording information on the information recording area of the disc by use of the laser beam having the actual recording strategy and the actual recording power set by the second means.

6. An apparatus for recording and reproducing information on and from a laser-beam-scanned optical disc including an information recording area and an information management area, wherein units of signal recording and signal reproduction on and from at least one of the information recording area and the information management area are blocks including first blocks each duplicately having a block address and second blocks each having both a block address and a management information piece, the information recording area storing blocks among the first blocks, the information management area storing the second blocks having recording management information including portions corresponding to respective integer multiples of a normal velocity relating to scanning of the disc, wherein each of the portions of the recording management information contains a first information piece representative of a recording strategy for recording of information on the information recording area and a second information piece representative of a recording laser power for recording of information on the information recording area, the apparatus comprising:

first means for reading, from the information management area of the disc, one of the portions of the recording management information which corresponds to desired one of the normal velocity and the at least one integer multiple of the normal velocity;

second means for setting an actual recording strategy and an actual recording power of a laser beam in accordance with the recording strategy and the recording laser power represented by the portion of the recording management information which is read by the first means; and

third means for recording information on the information recording area of the disc by use of the laser beam having the actual recording strategy and the actual recording power set by the second means.

7. An apparatus for recording and reproducing information on and from a laser-beam-scanned optical disc including an information recording area and an information management area, wherein units of signal recording and signal reproduction on and from at least one of the information recording area and the information management area are blocks including first blocks each duplicately having a block address and second blocks each having both a block address and a management information piece, the information recording area storing blocks among the first blocks, the information management area storing the second blocks recurrently having recording management information including portions corresponding to respective integer multiples of a normal velocity relating to scanning of the disc, wherein each of the recording management information contains a first information piece representative of a recording strategy for recording of information on the information recording area and a second information piece representative of a recording laser power for recording of information on the information recording area, the information management area having a portion unoccupied by blocks among the second blocks and occupied by blocks among the first blocks, the apparatus comprising:

first means for reading, from the information management area of the disc, one of the portions of the recording management information which corresponds to desired one of the normal velocity and the at least one integer multiple of the normal velocity;

second means for setting an actual recording strategy and an actual recording power of a laser beam in accordance with the recording strategy and the recording laser power represented by the portion of the recording management information which is read by the first means; and

third means for recording information on the information recording area of the disc by use of the laser beam having the actual recording strategy and the actual recording power set by the second means.

8. A method of recording and reproducing information on and from a laser-beam-scanned optical disc including an information recording area and an information management area, the information management area storing recording management information having portions corresponding to respective integer multiples of a normal velocity relating to scanning of the disc, wherein each of the portions of the recording management information contains a first information piece representative of a recording strategy for recording of information on the information recording area and a second information piece representative of a recording laser power for recording of information on the information recording area, the method comprising the steps of:

reading, from the information management area of the disc, one of the portions of the recording management information which corresponds to desired one of the normal velocity and the at least one integer multiple of the normal velocity;

setting an actual recording strategy and an actual recording power of a laser beam in accordance with the recording strategy and the recording laser power represented by the portion of the recording management information which is read; and

recording information on the information recording area of the disc by use of the laser beam having the actual recording strategy and the actual recording power which are set.

9. A method of recording and reproducing information on and from a laser-beam-scanned optical disc including an information recording area and an information management area, wherein units of signal recording and signal reproduction on and from at least one of the information recording area and the information management area are blocks including first blocks each duplicately having a block address and second blocks each having both a block address and a management information piece, the information recording area storing blocks among the first blocks, the information management area storing the second blocks having recording management information including portions corresponding to respective integer multiples of a normal velocity relating to scanning of the disc, wherein each of the portions of the recording management information contains a first information piece representative of a recording strategy for recording of information on the information recording area and a second information piece representative of a recording laser power for recording of information on the information recording area, the method comprising the steps of:

reading, from the information management area of the disc, one of the portions of the recording management information which corresponds to desired one of the normal velocity and the at least one integer multiple of the normal velocity;

setting an actual recording strategy and an actual recording power of a laser beam in accordance with the recording strategy and the recording laser power represented by the portion of the recording management information which is read; and

recording information on the information recording area of the disc by use of the laser beam having the actual recording strategy and the actual recording power which are set.

10. A method of recording and reproducing information on and from a laser-beam-scanned optical disc including an information recording area and an information management area, wherein units of signal recording and signal reproduction on and from at least one of the information recording area and the information management area are blocks including first blocks each duplicately having a block address and second blocks each having both a block address and a management information piece, the information recording area storing blocks among the first blocks, the information management area storing the second blocks recurrently having recording management information including portions corresponding to respective integer multiples of a normal velocity relating to scanning of the disc, wherein each of the recording management information contains a first information piece representative of a recording strategy for recording of information on the information recording area and a second information piece representative of a recording laser power for recording of information on the information recording area, the information management area having a portion unoccupied by blocks among the second blocks and occupied by blocks among the first blocks, the method comprising the steps of:

reading, from the information management area of the disc, one of the portions of the recording management information which corresponds to desired one of the normal velocity and the at least one integer multiple of the normal velocity;

setting an actual recording strategy and an actual recording power of a laser beam in accordance with the recording strategy and the recording laser power represented by the portion of the recording management information which is read; and

recording information on the information recording area of the disc by use of the laser beam having the actual recording strategy and the actual recording power which are set.