Optical information recording and reproducing apparatus
AssigneeOlympus Optical Co., Ltd.
InventorsYoshiaki Kaji, Seiji Kitagawa
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Abstract
The optical information recording and reproducing apparatus of the present invention comprises a detecting device detecting that an optical disc-like recording medium, having a spiral track, has made one rotation. A track jump circuit moves the position of a light beam, radiated on one segment of the spiral track of the optical disc-like recording medium, to an objective track segment. A track jump correcting circuit corrects the position of the light beam by the number of tracks which is equal to the number of one-rotation detecting signals obtained from the detecting device during the movement by the track jump circuit. A kick back circuit holds the light beam to always be radiated on the objective track segment.
Claims7
An optical information recording and reproducing apparatus comprising:
- a detecting means for detecting one rotation of an optical disc-like recording medium having a spiral track which is divided into a plurality of track segments;
- a track jump means for moving a position of a light beam from radiating on a present track segment on said optical disc-like recording medium to radiating on a desired objective track segment;
- a track jump correcting means for correcting the position of said light beam by a number of track segments which is equal to a number of one-rotation detecting signals which is detected by said detecting means during movement of said track jump means;
- and
- a kick back means for holding said light beam on the desired objective track segment of said plurality of track segments on said optical disc-like recording medium.
Dependencies are inferred from the claim text.