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:
Jan. 21, 1986

Filed:

Mar. 04, 1983
Applicant:
Inventors:

Haruo Misumi, Joyo, JP;

Hiroshi Ogawa, Joyo, JP;

Naotake Nagao, Muko, JP;

Katsuhiko Oimura, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
250227 ; 250551 ; 455601 ;
Abstract

An input light signal is guided to a light receiving element by an input optical fiber, and converted into an electric signal. This electric signal is converted again into an optical signal by a light emitting element, and this optical signal is optically and positively fed back to the light receiving element by a partially reflecting film between the light emitting element and an output optical fiber. In this way, the input optical signal can be electrically or optically converted in a two-valued state at the output side of the light receiving element or light emitting element.


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