Appeal No. 2001-1615
Application No. 09/053,251
a second DAC having a second range and a second error,
the second range being less than the first range and greater than
the first error, the second error being less than the first
error; and
control circuitry for alternately selecting between the
first DAC and the second DAC; wherein
the composite DAC has a composite range and a composite
error; and
the second DAC is coupled to minimize the composite
error such that the composite DAC has the first range and the
second error.
The prior art relied upon by the examiner is:
Ginthner et al. (Ginthner) 4,998,108 Mar. 05, 1991
Gorecki et al. (Gorecki 5,510,738 Apr. 23, 1996
Gersbach 5,666,118 Sep. 09, 1997
The admitted prior art at page 11, lines 7-8 of appellants’
specification.
Claims 1-3, 11-13 and 21 stand rejected under 35 U.S.C.
§ 102(b) as anticipated by Ginthner.
Claims 5-9 and 22 stand rejected under 35 U.S.C. § 103(a) as
being unpatentable over Ginthner.
Claim 23 stands rejected under 35 U.S.C. § 103(a) as being
unpatentable over Ginthner in view of Gorecki.
Claims 10, 14-18 and 24-26 stand rejected under 35 U.S.C.
§ 103(a) as being unpatentable over Ginthner in view of Gersbach.
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