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:
Feb. 22, 2011

Filed:

Mar. 12, 2009
Applicant:

Yong Woon Park, Gyunggi-do, KR;

Inventor:

Yong Woon Park, Gyunggi-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A switched current memory cell includes a current sourcehaving one end connected to an operation power source (Vdd) stage, a current memory circuit unitthat stores an input current; which is inputted in a sampling mode of the current from the current source, during a hold mode, maintains the current value stored in the hold mode, and outputs the stored current in an output mode, an input switch SWthat is turned on in the sampling mode to transfer an input current to the current memory circuit unit, and turned off in the hold mode, an output switch SWthat is turned on in the output mode to output current from the current memory circuit unit, and a current cut circuit unitthat connects a current path between the operation power source Vdd stage and the current sourcein the input mode and output mode, and separates the current path between the operation power source Vdd stage and the current sourcein the hold mode.


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