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:
Feb. 28, 2012
Filed:
Mar. 31, 2009
Dennis E. Dudeck, Hazleton, PA (US);
Donald Albert Evans, Lancaster, OH (US);
Hai Quang Pham, Hatfield, PA (US);
Wayne E. Werner, Coopersburg, PA (US);
Ronald James Wozniak, Whitehall, PA (US);
Dennis E. Dudeck, Hazleton, PA (US);
Donald Albert Evans, Lancaster, OH (US);
Hai Quang Pham, Hatfield, PA (US);
Wayne E. Werner, Coopersburg, PA (US);
Ronald James Wozniak, Whitehall, PA (US);
Agere Systems Inc., Allentown, PA (US);
Abstract
A memory circuit includes a plurality of memory cells and a plurality of bit lines and row lines connected to the memory cells for accessing selected memory cells. The memory circuit includes a programmable voltage source adapted for connection to at least one bit line and operative to precharge the bit line to a prescribed voltage level prior to accessing a selected one of the memory cells coupled to the bit line. A control circuit coupled to the bit line is operative to oppose discharge of the bit line during at least a portion of a given memory read cycle. A tracking circuit connected to the control circuit is operative to control a delay in activation of the control circuit and/or a duration of time the control circuit is active as a function of a parameter affecting signal development time of a data signal on the bit line.