Appeal No. 2001-1871
Application No. 09/082,449
BACKGROUND
The invention relates to calibration of an oscillator which is part of a phase
locked loop (PLL). Claim 7 is reproduced below.
7. A method of calibrating an oscillator, which forms a part of a phase-locked
loop for synchronizing the phase-locked loop’s oscillator with a carrier (CA), the
method comprising the steps of:
measuring a frequency difference (dF) between a nominal frequency
(Fnom) of the carrier (CA) and a frequency (Fosc) of the phase-locked loop’s
oscillator; and
adjusting the frequency (Fosc) of the phase-locked loop’s oscillator in
accordance with the measured frequency difference (dF).
The examiner relies on the following references:
Mogi 4,305,157 Dec. 8, 1981
Toda et al. (Toda) 5,388,125 Feb. 7, 1995
Claim 7 stands rejected under 35 U.S.C. § 102 as being anticipated by Toda.
Claims 1-3, 5, and 6 stand rejected under 35 U.S.C. § 103 as being
unpatentable over Toda and Mogi.
Claim 4 is objected to as depending from a rejected claim, but deemed allowable
if rewritten in independent form.
Claims 8-10 have been withdrawn from consideration.
We refer to the Final Rejection (Paper No. 6) and the Examiner’s Answer (Paper
No. 11) for a statement of the examiner’s position and to the Brief (Paper No. 10) and
the Reply Brief (Paper No. 12) for appellants’ position with respect to the claims which
stand rejected.
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