Track addressing method and apparatus
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United States of America Patent
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-
Jun 30, 1992
Grant Date -
N/A
app pub date -
Jun 29, 1990
filing date -
Jun 29, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Encoding and decoding of track address information stored on an optical disk is provided. The optical disk includes a number of tracks, each track being definable as having a plurality of position segments for storing track address information. Each of the position segments includes a single recording mark. The location of the recording mark in the position segment is indicative of the value of a digit that represents the encoded track address information. Preferably, the location of only one recording mark for a position segment changes between adjacent disk tracks. When decoding the track address information read from the optical disk, differential detection is utilized.
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