Image pickup apparatus with reduced signal noise

Details Image pickup apparatus with reduced signal noise Image pickup apparatus with reduced signal noise

1995-08-11

2000-07-11

Garber, Wendy

Television

Camera, system and detail

Combined image signal generator and general image signal...

348229, 348248, H04N 5235

Patent

active

060880570

ABSTRACT:
To obtain an image pickup apparatus capable of reducing the influence of noise, an image of an object is photographed by a CCD through an image pickup optical system. The CCD output is converted into a digital signal by sequentially processing it by a sample-and-hold circuit, a variable gain amplifier, and an A/D converter, in a digitization circuit which is formed into an IC. This digital signal is applied to a digital processing circuit on an IC different from the IC of the digitization circuit. There the digital signal is converted into a digital video signal of a predetermined format. With this arrangement, the processing in the digitization circuit is done without being influenced by noise generated by the subsequent digital processing circuit.

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