Other

Sony Corporation

Pioneer Electronic Corporation

Pioneer Video Corporation

Pioneer Display Products Corporation

Shouji Taniguchi

Kazuo Kuroda

Toshio Suzuki

Yoshiyuki Akiyama

Shinichiro Iimura

Akiyoshi Inoue

Minemasa Ota

Hiroshi Ogawa

1 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.

Optical recording medium including a wobbled groove with address information recorded on the land region adjacent the groove

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.

Optical recording medium, method for recording/reproducing the optical recording medium and apparatus for recording/reproducing the optical recording medium including a wobbled groove

Optical recording medium, method for recording/reproducing the optical

Optical recording and/or reproducing apparatus using wobble signals detected from a groove and pit signals detected from pits on the recording medium to control recording and/or reproducing

Optical recording medium with wobbled grooves and interconnecting pits

Optical recording medium having pits that are formed with respect to a

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Saitama, Japan

Shouji Taniguchi