Apparatus and method for controlling a tracking balance of an optical disk player
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United States of America Patent
Stats
-
Nov 23, 1999
Grant Date -
N/A
app pub date -
Sep 30, 1997
filing date -
Sep 30, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The apparatus for controlling the tracking balance of the optical disk player generates a tracking balance control signal removing a DC component from a tracking error caused by installing positions of a disk, a photo diode, a laser diode, and an object lens. A feed-back signal which is generated in a control part controls the tracking balance control signal. The control part measures a duration time of logic high from a logic error signal obtained from the tracking error signal and counts the number of the logic high which is in the predetermined time duration. When the counted value is equal to or smaller than a predetermined number, the feed-back signal for correcting the tracking balance is generated.
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