Optical information accessing system capable of reliable jump-back control
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United States of America Patent
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Apr 1, 1997
Grant Date -
N/A
app pub date -
Feb 24, 1995
filing date -
Feb 24, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an optical information accessing system for an optical disc including a plurality of tracks forming one helix, a counter counts sectors, and a comparator compares a value of the counter with a predetermined value. When the value of the counter reaches the predetermined value, a coincidence signal is generated from the comparator. A gate circuit passes the coincidence signal as a jump-back signal. When data processing upon the optical disc is abnormally interrupted and the coincidence signal is generated, the predetermined value is switched from a first value to a second value larger than the first value.
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