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:
Nov. 21, 1989

Filed:

Jul. 21, 1987
Applicant:
Inventors:

Mikiharu Matsuoka, Tokyo, JP;

Yasuhiro Yamada, Yokohama, JP;

Yasuko Miyazaki, Sagamihara, JP;

Takashi Kanemoto, Machida, JP;

Hirohiko Katayama, Kawasaki, JP;

Tamao Ikuta, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09B / ; G06K / ;
U.S. Cl.
CPC ...
434113 ; 434114 ; 382-1 ;
Abstract

Selecting switches are provided near a converter for converting an optical image into an electric signal, thereby enabling the electric signal before or after it was stored to be effectively selected. A plurality of convertors are provided and when an electric signal is not output from one of the convertors, the other convertors can be used. The analog electric signal output from the converter is binarized by a reference level signal before it fluctuates. An electric power consumption when the apparatus is not used is prevented by a power controller arranged near a sensing display.


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