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:
May. 17, 2011
Filed:
Apr. 03, 2009
Kun-hsien LI, Taipei County, TW;
Chih-pin Sun, Hsinchu County, TW;
Hao-ping Hong, Hsinchu County, TW;
Yung-yu Lin, Taipei County, TW;
Kun-Hsien Li, Taipei County, TW;
Chih-Pin Sun, Hsinchu County, TW;
Hao-Ping Hong, Hsinchu County, TW;
Yung-Yu Lin, Taipei County, TW;
Mediatek Inc., Science-Based Industrial Park, Hsin-Chu, TW;
Abstract
An operating circuit includes a differential amplifier stage, which has a first input node for receiving a first input signal of a differential input, a second input node for receiving a second input signal of the differential input, a first output node for outputting a first output signal of a differential output, and a second output node for outputting a second output signal of the differential output; an offset current stage coupled to the first output node and the second output node for inducing a first offset current at the first output node and a second offset current at the second output node; and a first clamping device coupled to the first output node for selectively clamping an output voltage at the first output node according to the first output signal at the first output node.