Disc inspecting method and disc inspecting device
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United States of America Patent
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May 21, 2013
Grant Date -
Apr 12, 2012
app pub date -
Sep 19, 2011
filing date -
Oct 8, 2010
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A disc inspecting method includes: forming recording marks on a disc; scanning the recording marks from inside to outside or from outside to inside of the disc by a pickup unit to read a reproduction signal while rotating a spindle to move a slider by each predetermined width; acquiring reproduction data from the reproduction signal in a signal acquiring unit; and determining whether or not the reproduction data is proper in a calculation unit, and optimizing a formation condition of the recording marks when it is determined that the reproduction data is not proper.
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