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. 06, 1983

Filed:

Dec. 10, 1981
Applicant:
Inventors:

Toshihisa Hamano, Ebina, JP;

Hisao Ito, Ebina, JP;

Mutsuo Takenouchi, Ebina, JP;

Takashi Ozawa, Ebina, JP;

Mario Fuse, Ebina, JP;

Takeshi Nakamura, Ebina, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358294 ; 2502 / ; 2502 / ; 250578 ; 338 17 ; 357 24 ; 358213 ; 358293 ;
Abstract

A manuscript reader comprises an amorphous silicon film sandwiched between at least one transparent electrode and a plurality of metal electrodes formed on an insulating substrate. If the reader includes a plurality of sensors, the detection circuitry can vary a comparison threshold level during the course of one scanning operation.


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