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. 31, 1989
Filed:
May. 28, 1986
Applicant:
Inventor:
Syuji Suzuki, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S / ;
U.S. Cl.
CPC ...
372-8 ; 372 38 ; 372 44 ;
Abstract
An opto-electric logic element comprises a semiconductor laser having a differential gain characteristic or an optical bistable characteristic and supplied with at least one light input, and a control circuit for varying an injection current supplied to the semiconductor laser in accordance with an input electrical signal. The logic element is capable of executing a logical operation between the optical signal and the electrical signal and can output the results of the logical operation as an optical signal.