Optical disk recording method employing a plurality of...

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal

Reissue Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C369S047400, C369S053290

Reissue Patent

active

RE038704

ABSTRACT:
An optical disk apparatus comprising a reproduced signal detector which digitizes a reproduced signal from an optical disk, a broadband synchronizing clock signal generator for generating a synchronizing clock signal for use in reproducing data, a signal processor for processing signals, and a disk rotation controller for controlling the optical disk by switching control modes according to the reproducing position of the disk, that is, performing CAV control using the constant rotating velocity which is the same as the current rotating velocity in a range where the synchronizing clock signal generator allows a reproduced signal to be subjected to pull-in-synchronization, and performing CLV control so that the linear velocity is constant to minimize the pull-in-enable changes of number of revolutions in a range exceeding the pull-in-synchronization range, by which arrangement the amount of change of number of spindle motor revolutions when the reproducing position of the optical pickup changes is minimized, thus further reducing power consumption and access time. The optical disk apparatus comprises a selector to switch over the control systems, and area dividing means to manage the divided areas, and while switching over CAV control and CLV control, records data, and varies the divided areas or the number of divided areas in CAV control according to recording capacities, so that lower power consumption and higher-speed access can be realized.

REFERENCES:
patent: 4558375 (1985-12-01), Sontheimer
patent: 5136560 (1992-08-01), Hangai et al.
patent: 5425014 (1995-06-01), Tsuyuguchi et al.
patent: 5446724 (1995-08-01), Tabe et al.
patent: 5528574 (1996-06-01), Takeuchi et al.
patent: 5687148 (1997-11-01), Uemura
patent: 4220694 (1993-01-01), None
patent: 0599628 (1994-06-01), None
patent: 6222763 (1987-02-01), None
patent: 6318652 (1988-04-01), None
patent: 6460863 (1989-03-01), None
patent: 6-119710 (1994-04-01), None
patent: 7312018 (1995-11-01), None
patent: 9634387 (1996-10-01), None
European Search Report dated Oct. 5, 2000.
Full English translation of JP-A-(U)-62-22763.
Full English translation of JP-A-63-81652.
Partial English translation of JP-A-7-312018.
Partial English translation of JP-A-64-60863.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optical disk recording method employing a plurality of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical disk recording method employing a plurality of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical disk recording method employing a plurality of... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3485471

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.