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.

Date of Patent:
Aug. 18, 2009

Filed:

Sep. 23, 2005
Applicant:

Wei-bin Yang, Taichung County, TW;

Inventor:

Wei-Bin Yang, Taichung County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A storage unit capable of retaining data during sleep mode. The storage unit includes a first latch composed of first and second inverters and a second latch composed of the first inverter and a third inverter, in which the first and second inverters have different threshold voltages. The first inverter comprises an input terminal coupled to a write port and an output coupled to a read port. The second inverter comprises an input terminal coupled to the read port and an output terminal coupled to the write port. The third inverter comprises an input terminal coupled to the write port and an output terminal coupled to the read port.


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