Appeal No. 1997-0258
Application No. 08/251,052
withdrawn by the Examiner. Accordingly, claims 1-4, 7-10, and
12 are before us on appeal.
The claimed invention relates to a power-up detection
circuit with a reset feature which resets the detection
circuitry after an initial power-up detection signal is
produced. More particularly, Appellants indicate at pages 8
and 9 of the specification that this reset circuitry
establishes a DC current path to ground to conduct DC current
to reset the power-up circuity to produce a subsequent power-
up detection signal.
Claim 1 is illustrative of the invention and reads as
follows:
1. A device to produce a first power-up detection signal
comprising:
a reference generator circuit for producing a reference
voltage;
detection circuit coupled to said reference generator
circuit to detect said reference voltage as power is being
applied to said device;
power-up circuitry coupled to said detection circuitry to
produce said first power-up detection signal based on said
reference voltage;
reset circuitry coupled to said power-up circuitry to
reset said power-up circuitry by establishing a DC current
path from said power-up circuitry to ground to conduct DC
2
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