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:
May. 13, 1986
Filed:
Mar. 15, 1983
Applicant:
Inventor:
Heihachiro Ebihara, Tanashi, JP;
Assignee:
Citizen Watch Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ;
U.S. Cl.
CPC ...
365185 ; 365189 ;
Abstract
A non-volatile memory circuit comprising a plurality of semiconductor non-volatile memory elements, with erasure of data stored in all of these elements, enabling of selective write-in to all of the elements and read-out of stored data being controlled by potentials applied to a single control terminal. Use of a single terminal for these functions, rather than a pair of terminals as in the prior art, makes the circuit highly suitable for ultra-miniature electronic device applications.