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, 2008
Filed:
Jan. 05, 2007
Applicants:
Pierre Fazan, Morges, CH;
Serguei Okhonin, Lausanne, CH;
Inventors:
Pierre Fazan, Morges, CH;
Serguei Okhonin, Lausanne, CH;
Assignee:
Innovative Silicon, S.A., Lausanne, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 11/24 (2006.01); G11C 11/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data storage device such as a DRAM memory having a plurality of data storage cellsis disclosed. Each data storage cellhas a physical parameter which varies with time and represents one of two binary logic states. A selection circuit, writing circuitsand a refreshing circuitapply input signals to the data storage cells to reverse the variation of the physical parameter with time of at least those cells representing one of the binary logic states by causing a different variation in the physical parameter of cells in one of said states than in the other.