Signal processing circuit for solid-state image sensor

Details Signal processing circuit for solid-state image sensor Signal processing circuit for solid-state image sensor

1992-07-17

1995-01-03

Ip, Paul

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

348250, 348311, H04N 5335

Patent

active

053791258

ABSTRACT:
An image sensing system includes a solid-state image sensor having at least two horizontal shift registers for providing monochromatic multichannel signals, and a signal processing circuit for combining the signals into a monochromatic composite signal. The signal processing circuit includes a first combining circuit for producing a first output signal by selecting one of the multichannel signals alternately at regular intervals, a second combining circuit for adding together the multichannel signals to produce a second, and a third combining circuit for producing a composite signal by output signal combining the first and second signals through selection or addition. Thus, this system can produce the composite signal in either of two different combining modes, one of which is superior in frequency characteristic and the other of which can provide high S/N signals.

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