Appeal No. 1999-2418
Application No. 08/737,510
The invention is directed to a circuit for operating
microprocessors. The particular program sequence followed by
the microprocessor is dependent on the condition of a device
that is controlled by the microprocessor. The invention takes
into account the condition of the controlled device in order
to distinguish between a reset signal which has appeared as a
result of electromagnetic interference, for example, and
another reset signal. By distinguishing between these
different reset signals, undesired operating situations are
avoided.
Independent claim 1 is reproduced as follows:
1. Circuit for operating computing components, in
particular microprocessors, with said circuit including at
least one reset device, which as a result of interferences
transmits a reset signal to the computing component to provide
a varied program sequence following the appearance of a reset
signal, wherein said sequence is determined in dependence on a
compare signal provided by a comparator, and wherein the
comparator compares a signal value that reflects the present
condition of a device, which cooperates with and is controlled
by the computing component, with at least one threshold value
to provide the compare signal.
The examiner relies on the following references:
Abo et al. (Abo) 4,363,092 Dec. 07, 1982
Urban 4,683,568 Jul. 28, 1987
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