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.
Patent No.:
Date of Patent:
Jan. 18, 1983
Filed:
Nov. 24, 1980
Applicant:
Inventors:
Elmer H Hara, Kanata, CA;
R Ian MacDonald, Ottawa, CA;
Robert S Hum, Ottawa, CA;
Brian S Kawasaki, Carleton Place, CA;
Assignee:
Canadian Patents & Dev. Limited, Ottawa, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
250551 ; 2502 / ; 307311 ;
Abstract
The optoelectronic switch includes a photosensitive GaAs FET onto which an optical signal may be directed. The optical signal is derived from an RF modulated light source. A voltage circuit is connected to the FET to switch the FET 'on' or 'off' by placing a positive or zero voltage respectively on the drain. An isolation of over 70 dB is obtained in this FET switch.
Hara, Elmer. (1983). Broadband high speed optoelectronic semiconductor switch (U.S. Patent No. 4369371). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4369371
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile