Image pick-up apparatus and image pick-up system

Details Image pick-up apparatus and image pick-up system Image pick-up apparatus and image pick-up system

2005-10-04

2005-10-04

Gabor, Otilia (Department: 2878)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

C250S363070

Reexamination Certificate

active

06952015

ABSTRACT:
An image pick-up apparatus and an image pick-up system constructed to prevent occurrence of random noise in a photographed image due to a random noise component produced in a reference supply circuit. An image pick-up apparatus has an area sensor driven by matrix driving, and a reference supply circuit for supplying a reference voltage for driving of the area sensor, and the reference voltage is supplied through a low-pass filter (LPF) coupled to the reference supply circuit. Further, a cutoff frequency of the low-pass filter preferably is determined so that an effective value of noise of the reference voltage having passed through the low-pass filter becomes not more than one-tenth of an effective value of random noise produced in pixels of the area sensor.

REFERENCES:
patent: 4340819 (1982-07-01), Ogasawara et al.
patent: 4811086 (1989-03-01), Hieda
patent: 6772011 (2004-08-01), Dolgin
U.S. Appl. No. 09/748,219, filed Dec. 27, 2000.

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