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. 16, 2010

Filed:

Dec. 15, 2008
Applicant:

Chih-kang Cheng, Hsinchu, TW;

Inventor:

Chih-Kang Cheng, Hsinchu, TW;

Assignee:

Ili Technology Corp., Jhubei, Hsinchu County, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A signal level shifting circuit, including an input stage circuit and an output signal latching circuit. The input stage circuit receives an input signal, wherein a voltage level of the input signal falls within a first predetermined voltage range. The output signal latching circuit is cascoded with the input stage circuit, and includes: a latching circuit for generating an output signal according to the input signal, wherein a voltage level of the output signal falls within a second predetermined voltage range, and the second predetermined voltage range is different from the first predetermined voltage range; and an activating circuit, coupled to the latching circuit, for selectively enabling or disabling the latching circuit, wherein when a level transition appears to the input signal, the activating circuit disables the latching circuit.


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