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:
Jul. 07, 1992
Filed:
Sep. 28, 1990
Applicant:
Inventor:
Hung C Lin, Silver Spring, MD (US);
Assignee:
University of Maryland, College Park, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ; G11C / ;
U.S. Cl.
CPC ...
365168 ; 365 71 ; 365 72 ; 365175 ;
Abstract
A memory cell for multi-value logic. Two devices with multiple peak folding characteristics, such as the V-I characteristics of resonant tunneling diodes, are connected in series across a power supply. Multiple stable operating points are established where the positive resistance portions of the respective folding voltage-current characteristics intersect and correspond to multiple quantized levels for storing information, creating a multi-valued memory cell.