Optical disc, apparatus and method for recording and reproducing data
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United States of America Patent
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Mar 2, 1999
Issued Date -
N/A
app pub date -
Nov 5, 1997
filing date -
Jun 15, 1995
priority date (Note) -
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Importance
Abstract
An optical disc having address information recorded in a wobbling manner is arranged to record or reproduce data at correct positions. The optical disc includes at least one track on which data is recorded and which is previously formed as a pregroove wobbled in accordance with an address information, where the track has a plurality of frames wobbled in accordance with the address information, and further where a plurality of sync marks is formed in each of said frames by wobbling said pregroove at a center frequency of frequencies of wobbling with the address information.
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