Photoelectric element control system

Details Photoelectric element control system Photoelectric element control system

1984-04-16

1986-04-22

Rubinson, Gene Z.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358212, 358294, H04N 530, H04N 1024

Patent

active

045846073

ABSTRACT:
An image sensor includes a plurality of photoelectric elements arranged in the form of an array and a like plurality of blocking diodes, each of which is connected in series with and opposite in direction to the corresponding one of said photoelectric elements thereby forming a charge accumulating unit. The image sensor also includes means for setting long and short charge accumulating time periods, whereby when the long charge accumulating time period is set, a combined signal including a true signal and the dark current signal is outputted and when the short charge accumulating time period is set, only the dark current signal is outputted. Thus, when a difference is taken between these two signals, there is obtained an output signal free of the dark current component

REFERENCES:
patent: 4424590 (1984-01-01), Ozawa
patent: 4482804 (1984-11-01), Oritsuki et al.
patent: 4499384 (1985-02-01), Segawa et al.
patent: 4500927 (1985-02-01), Ozawa

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