Appeal No. 1997-1505 Page 17
Application No. 08/580,778
specification, and limitations appearing in the specification
are not to be read into the claims. In re Etter, 756 F.2d 852,
858, 225 USPQ 1, 5 (Fed. cir. 1985).
Claim 5 recites, inter alia, “A reference voltage
generator
. . . said frequency adjustment means operable for adjusting
loop frequency until a desired reference voltage is generated.
. . and a circuit arrangement, operatively coupled to the
frequency
adjustment means, for locking the loop frequency at a value
whereat the desired reference voltage has been attained.”
We find no teaching in Wahler and Grandfield of a
reference voltage generator which includes adjusting the loop
frequency until a desired reference voltage is generated, and
locking the loop frequency at a value where the desired
reference voltage has been attained.
Accordingly, we conclude that the examiner has failed to
establish a prima facie case of obviousness. The rejection of
claims 5 and 6 under 35 U.S.C. § 103 is therefore reversed.
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