Appeal No. 95-3876
Application 08/222,009
Iwata explains (col. 3, line 37 to col. 4, line 56) that the
conductive state of the flash lamp 14 is controlled by a
trigger circuit 33 and by FET 15, which is controlled by a
control voltage generation circuit 18. That circuit includes
transistors 22 and 23 and resistors 24 and 25 which correspond
to transistors Q5 and Q4 and resistors R8 and R9 in
appellants' flash fire control circuit 5 (Figs. 1 and 7).
Transistors 22 and 23 are turned on when the output signal of
NAND gate 28 (waveform B of Fig. 4) in the operation control
circuit 19 goes high. Just as turning on appellants'
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Last modified: November 3, 2007