Appeal No. 2003-1383
Application No. 09/451,414
Claim 1 is representative of the invention and reads as follows:
1. An electronic read channel for an optical disk drive, the drive adapted for reading
and writing data, the channel comprising:
an amplifier, having an input and an output;
a switch, the switch coupling the input of the amplifier to a data signal when the
drive is reading data, and the switch coupling the input of the amplifier to a
wobble signal when the drive is writing data; and
a phased locked loop, receiving a signal derived from a signal from the output of
the amplifier, the phased locked loop generating a read clock signal when the
drive is reading data, and the phased locked loop generating a write clock signal
when the drive is writing data.
Reference
The examiner relies upon the following reference as evidence of obviousness:
Katoh 6,088,311 July 11, 2000
(filed Jan. 9, 1998)
Rejections at Issue
Claims 1 and 2 stand rejected under 35 U.S.C. § 103 as being unpatentable over
Appellant’s Admitted Prior Art (AAPA) in Figure 1 in view of Katoh.
Opinion
We have carefully considered the subject matter on appeal, the rejections
advanced by the examiner and the evidence of obviousness relied upon by the
examiner as support for the rejections. We have, likewise, reviewed and taken into
consideration, in reaching our decision, the appellant’s arguments set forth in the briefs1
1 This decision is based upon the Appeal Brief received November 13, 2002 (certified as being
filed on November 6, 2002, in accordance with 37 C.F.R. § 1.8(a)), and the Reply Brief received
February 21, 2003 (certified as being filed on February 13, 2003, in accordance with 37 C.F.R.
§ 1.8(a)).
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