Appeal No. 1997-4445
Application 08/305,076
on any three exciting time periods within the enable signal
interval.
Anticipation
"Anticipation is established only when a single prior art
reference discloses, expressly or under principles of
inherency, each and every element of a claimed invention."
RCA Corp. v. Applied Digital Data Systems, Inc., 730 F.2d
1440, 1444, 221 USPQ 385, 388 (Fed. Cir. 1984).
We do not agree with the Examiner's reliance on time
interval td in the APA of Figure 3. During the time
interval td, the exciting current enable signal (and, thus,
the exciting current) is being repeatedly turned on and off
(specification, page 10, lines 3-4). As we interpret the
claims, it is not an "exciting time period" when the enable
signal is turned off. While it is true that the exciting
current is reduced at the time td (specification, page 9,
line 25), it does not happen during an "exciting time period"
because the current only decreases when the enable signal is
turned off.
Nevertheless, we find that claims 6-8, as properly
interpreted, are anticipated by the APA of Figures 1 and 3.
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