Appeal No. 2007-0464
Application 09/964,874
C. Summary of the Decision
Applicant has not shown error in the anticipation rejection of claim 24. Applicant has
shown error in the obviousness rejection of claims 10-11. Applicant has shown error in the
obviousness rejection of claims 12-13 and 26-27. Applicant has not shown error in the
obviousness rejection of claim 25.
D Findings of Fact (Referenced as FF. ¶ No.)
1. The invention is directed to an optical disk drive which records information onto
and reproduces information from an optical disk, and is more particularly directed to how the
disk drive handles the setting of a focus offset, a tracking offset, or a laser output value.
(Specification, Page 1, Lines 5-12).
2. In the pertinent art, it was known to set the focus offset, the tracking offset, and
the laser output value, at the time of startup of the optical disk drive. (Specification, Page 2,
Lines 21-23).
3. It was known to set the focus offset of the disk drive to a value at which an RF
signal is maximized. (Specification, Page 2, Lines 5-6).
4. It was known to set the tracking offset of the disk drive to a value at which a
tracking error signal obtained in an on-track state comes to the center of a tracking error signal
obtained in an off-track state. (Specification, Page 2, Lines 6-11).
5. It was known to set the laser output value such that a data error rate would be
minimized. (Specification, Page 2, Lines 18-19).
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