G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 7/24 (2006.01) G11B 7/007 (2006.01) G11B 19/28 (2006.01) G11B 7/09 (2006.01)
Patent
CA 2201454
An optical recording medium for accurately deriving the address information or the disc rotation control information despite narrow track pitch and for recording signals to a high density, and a method and apparatus for recording and/or reproducing such optical recording medium. The optical recording medium has a wobbled groove and pits formed at a pre-set interval in an area between turns of the wobbled groove. The recording/reproducing method includes controlling rotation of the optical recording medium by a wobbled signal from the groove and detecting the position on the optical recording medium of a recording signal by pit signals detected from the pits. The recording/reproducing apparatus includes a detection device for detecting the wobbled signal from the groove and a detection device for detecting pit signals from the pits. The rotation of the optical recording medium is controlled by the wobbled signals detected from the groove and the position on the optical recording medium of the recording signal is detected by the pit signal detected from the pits.
Akiyama Yoshiyuki
Iimura Shinichiro
Inoue Akiyoshi
Kuroda Kazuo
Ogawa Hiroshi
Gowling Lafleur Henderson Llp
Pioneer Corporation
Pioneer Display Products Corporation
Pioneer Electronic Corporation
Pioneer Video Corporation
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