Appeal No. 96-0139
Application 08/037,683
distorted by a stray impedance of the line 5 or the like or
the waveform of the signal is distorted due to the filter-
processing or the like in the Y/C separating circuit 8" (Spec.
at 2, lines 15-19), thereby degrading the quality of the LCD
image (id. at lines 19-20).
Appellants solve this problem by replacing some of the
analog processing circuitry and line 5 with digital circuitry
and a bidirectional digital bus. As shown in Figure 2, the
analog signal generated by imager device 3 is converted to a
digital video signal VD by a signal processor 14, which the
specification (at 4, lines 1-4) indicates includes a
microprocessor and an analog-to-digital converter. The
digital video signal is supplied via a bidirectional bus 15 to
a decoder driver 19, which produces the analog signals
required to drive the LCD viewfinder 11. The bidirectional
bus also permits "the viewfinder 17 . . . to have its own
peculiar function. For example, only in the viewfinder 17
side, the color adjustment can be effected in accordance with
the user’s taste by the microcomputer on the camera 21 side"
(Spec. at 5, lines 15-18).
Claim 4 is representative:
- 3 -
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Last modified: November 3, 2007