Loeb & Loeb
Image signal processing apparatus integrated on single semiconductor substrate
 An image signal processing apparatus is here disclosed in which analog circuits such as a sample and hold circuit 10 for sampling an image signal Y1 (t) for every bit of image information, a reference circuit 11 for generating a reference voltage in synchronization with the sample and hold circuit 10, a differential amplifier 12 for amplifying a difference between outputs of both, and a gamma correction circuit 14 for subjecting the output of the differential amplifier 12 to a non-linear correction are constituted of MOS transistor circuits, and they are integrated, on a single substrate, together with a timing control circuit 19 and a digital signal processing circuit 17 which are digital circuits. 
Sanyo Electric Co.
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Hiroya
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