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:
Aug. 09, 2011
Filed:
May. 05, 2008
Applicant:
Vijay Kumar Srinivasa Raghavan, Colorado Springs, CO (US);
Inventor:
Vijay Kumar Srinivasa Raghavan, Colorado Springs, CO (US);
Assignee:
Cypress Semiconductor Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A SONOS memory sensing scheme includes a reference current circuit that tracks the changes in the power supply (Vcc). An equalizer of the current sense amplifier is coupled between the read out current line and the reference current line. The current sense amplifier includes data and datab (data bar) outputs which have a common mode noise due to variations in the power supply voltage. The data output is a current generated from the memory cell, and the datab output is generated by the current reference circuit.