Appeal No. 2003-0163
Application No. 09/400,508
Appellant's invention relates to a low noise logic gate. An understanding of the
invention can be derived from a reading of exemplary claim 1, which is reproduced
below.
1. A logic gate, comprising:
a low noise current source coupled between a first terminal of a
voltage supply and an output terminal, said low noise current
source being capable of delivering a preselected voltage
signal to said output terminal having a magnitude responsive
to a first control signal relatively independent of the
magnitude of the voltage on said first terminal of said
voltage supply; and
at least one switching element coupled between the output terminal
and a second terminal of the voltage supply, said switching
element being capable of coupling said output terminal to
said second terminal of said voltage supply in response to
receiving a control signal.
The prior art of record relied upon by the examiner in rejecting the appealed
claims is as follows:
Sundstrom 5,602,494 Feb. 11, 1997
Chang et al. (Chang) 5,955,893 Sep. 21, 1999
(filed Dec. 16, 1996)
Lee 6,078,194 Jun. 20, 2000
(filed Nov. 13, 1995)
Claim 1 stands rejected under 35 U.S.C. § 102 as being anticipated by Lee.
Claims 2 and 161 stands rejected under 35 U.S.C. § 103 as being unpatentable over
1 The examiner has not specifically rejected claim 16 in the answer, but did include a separate
rejection in the final rejection for claim 16. Appellant acknowledges the status of claim 16 in the Brief at
page 3 as being rejected. The examiner has not indicated that the rejection has been withdrawn.
Therefore, we will treat claim 16 as being rejected as set forth in the final at page 4.
2
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