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:
Nov. 24, 1998
Filed:
Jun. 12, 1997
Mark S Ebel, Los Altos, CA (US);
Robert Shen, Fremont, CA (US);
Enable Semiconductor, Inc., Milpitas, CA (US);
Abstract
A circuit for connecting a memory cell matrix to voltage sources includes a voltage sensor responsive to the voltage levels of a first voltage source and of a second voltage source by producing a sense signal, and a voltage source coupler connected between the memory cell matrix and the voltage sensor. When the first voltage source voltage level is greater than a predetermined threshold voltage level, the sense signal causes the voltage source coupler to drive the first voltage source voltage level into the memory cell matrix. When the first voltage source voltage level falls to the threshold voltage level, the sense signal also causes the voltage source coupler to drive the second voltage source voltage level into the memory cell matrix to sustain memory cell data.