Appeal No. 2001-0740
Application 09/054,415
Mizuide is tied to the actual voltages V 1 and V2, which can
occur at any time. Mizuide is not clocked. Thus, there is no
time "when little activity is expected" and no teaching of
decreasing current at this time. The rejection of claim 16 is
reversed.
Claim 17
Appellants argue that Mizuide does not show "using two
current mirrors" to provide power to the amplifier and "switching
one current mirror in or out to control power to the amplifier
without adversely affecting the amplifier" as recited in claim 17
(Br12).
The examiner responds that current mirror 61 is the one
current mirror of two current mirrors 55, 61 which switches power
(current) to amplifier 1, 3, 7, 9, referring to column 7, lines
36-37 and 43-44 (EA15-16).
Appellants have not shown error in the examiner's position.
Transistors 1 and 3 are broadly considered current amplifiers.
Current mirror 55 is always on (col. 7, line 23). Current
mirror 61 is switched in and out to control the emitter current
of transistors 1 and 3 (col. 7, lines 21-32) and, hence, the
power. The limitation of "without adversely affecting the
amplifier" is so broad that it is met by current that does not
destroy the transistors, which is implicit in Mizuide. Claim 17
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