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:
Apr. 12, 2011
Filed:
Dec. 17, 2009
Yu-chen Chiang, Changhua County, TW;
Ming-hung Chang, Hsin-Chu Hsien, TW;
Fu-yuan Chen, Kao-Hsiung Hsien, TW;
Yu-Chen Chiang, Changhua County, TW;
Ming-Hung Chang, Hsin-Chu Hsien, TW;
Fu-Yuan Chen, Kao-Hsiung Hsien, TW;
Anpec Electronics Corporation, Hsin-Chu, TW;
Abstract
An offset voltage calibration method is disclosed, which is utilized for calibrating an offset voltage of an electronic device during a calibration period. The offset voltage calibration method includes generating a control signal according to an output signal of the electronic device, counting a count value and generating an offset indication signal according to the control signal, stopping counting and generating a final count value according to a compensation value after the output signal changes state, generating a calibration signal according to the count value or the final count value, and calibrating the offset voltage according to the offset indication signal and the calibration signal.