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:
Oct. 19, 2010

Filed:

Oct. 03, 2008
Applicants:

Chao-cheng Lee, Hsinchu, TW;

Ren-chieh Liu, Shetou Township, Changhua County, TW;

Inventors:

Chao-Cheng Lee, Hsinchu, TW;

Ren-Chieh Liu, Shetou Township, Changhua County, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A switch circuit includes a pair of metal oxide semiconductor (MOS) switches and an adjusting unit. Each of the MOS switches has an input terminal and an output terminal. The MOS switches receive a pair of differential input voltages at the input terminals thereof, and output a pair of differential output voltages at the output terminals thereof when the MOS switches conduct. The adjusting unit changes a difference between common mode levels of the input terminals and the output terminals of the MOS switches so as to adjust linearity of differential mode resistances of the MOS switches.


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