The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 27, 1994

Filed:

Mar. 03, 1993
Applicant:
Inventors:

Chikaho Ikeda, Kanagawa, JP;

Hiroshi Fujimagari, Kanagawa, JP;

Junji Okada, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H01L / ;
U.S. Cl.
CPC ...
2502081 ; 348310 ;
Abstract

When a forward or reverse voltage is applied to two diodes 1 and 2 connected in series in the same direction, the junction CP of the two diodes is switched for a comparatively low-impedance state to a high-impedance state or vice versa, so that a photoelectric transducer 3 connected to the junction CP is brought to either a reset or storage state. With an improved image pickup device having this construction, the impedance at the junction CP can definitely be held at low level in all instances without being influenced by the amount of illumination on the photoelectric transducer 3, whereby it can be saturated within a predetermined reset time so as to prevent the generation of residual charges.


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