Appeal No. 1997-2340 Page 3
Application No. 08/329,687
The distribution relieves the over-voltage before any
components are damaged.
Claim 6, which is representative for our purposes,
follows:
6. A switching circuit protection method
comprising the steps of:
detecting the self-firing of at least one
switching element due to an over-voltage in a
switching circuit having multiple parallel circuits;
applying a firing pulse to all the switching
elements in the switching circuit in response to the
detected self-firing; and
firing all un-fired switching elements at the
same time due to the firing pulse.
Besides the appellant’s admitted prior art (AAPA), the
references relied on in rejecting the claims follow:
Mitsuoka 4,697,219 Sep. 29, 1987
Takahashi 4,796,146 Jan.
3, 1989.
Claims 1-9 stand rejected under 35 U.S.C. § 103 as obvious
over AAPA in view of Takahashi and Mitsuoka. Rather than
repeat the arguments of the appellant or examiner in toto, we
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