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

2006-02-21

2006-02-21

Gabor, Otilia (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

C250S363070

Reexamination Certificate

active

07002157

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 is preferably 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
patent: 2001/0033336 (2001-10-01), Kameshima et al.

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