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:
Mar. 11, 1986
Filed:
Aug. 17, 1982
Michael D Fitzpatrick, Linthicum, MD (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A non-volatile memory and method is described incorporating an array of variable threshold transistors, a row decoder, a buffer circuit positioned between the array and row decode circuitry, column decode circuitry, and a sense amplifier. The non-volatile memory overcomes the problem of high voltages in the memory array during READ operation. During READ operation the variable threshold transistors operate in the common source mode. A buffer circuit with level shift capability is described incorporating P and N channel transistors. A sense amplifier with decoupling during sensing or lock out is described incorporating P and N channel transistors.