Appeal No. 98-0194 Page 15
Application No. 08/132,940
Ensslin inherently discloses that his computer includes a clock
and an integrator.
After the scope and content of the prior art are
determined, the differences between the prior art and the
claims at issue are to be ascertained. Graham v. John Deere
Co., 383 U.S. 1, 17-18, 148 USPQ 459, 467 (1966).
Based on our analysis and review of Bowers and claim 1, it
is our opinion that the only differences are the limitations
that
(1) the user control sets the level of energy desired by the
user, (2) the automatic control circuit includes a clock and an
integrator to calculate the amount of energy supplied from the
calculated power flow, and (3) the correlation circuit provides
a feedback signal which alters the supply of energy to the
active and return leads when the amount of energy calculated
equals the reference signal sent from the user control.
Based on our analysis and review of Bowers and claim 13,
it is our opinion that the only differences are the limitations
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