[n: Methods For Track Change, Selection Or Preliminary Positioning By Moving The Head] {g11b 7/085a} Patents (Class G9B/7.043)

Cross-Reference Art Collections

[n: with focus pull-in only] {g11b 7/085a1} (Class G9B/7.044)
[n: with tracking pull-in only] {g11b 7/085a2} (Class G9B/7.045)
[n: with both tracking and focusing pull-in] {g11b 7/085a3} (Class G9B/7.046)
[n: methods and circuits to control the velocity of the head as it traverses the tracks] {g11b 7/085a4} (Class G9B/7.047)
[n: involving track counting to determine position] {g11b 7/085a6} (Class G9B/7.049)
  • OPTICAL DISC, OPTICAL DISC DRIVE, OPTICAL DISC RECORDING/REPRODUCING METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20090180361
    Abstract: In an optical disc, a track on which data is recordable is divided into a plurality of blocks, and each block includes L pieces of sub blocks. On each sub block, M-bit first digital information specifying a block address of a block including the each sub block and N-bit second digital information capable of representing a numerical value equal to or larger than L are recorded.
    Type: Application
    Filed: November 18, 2008
    Publication date: July 16, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Kohei NAKATA, Naohiro KIMURA, Harumitsu MIYASHITA, Hiroshi UEDA, Yoshikazu YAMAMOTO