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:
Nov. 27, 2007
Filed:
Jul. 03, 2006
Chung-yi Wang, Fongyuan, TW;
Jieh-tsorng Wu, Hsinchu, TW;
Chung-Yi Wang, Fongyuan, TW;
Jieh-Tsorng Wu, Hsinchu, TW;
National Chiao Tung University, Hsinchu, TW;
Abstract
An analog-to-digital converter (ADC) having a two-channel or multi-channel structure processes background timing calibration. Signals from the ADC are directly compared for the calibration. Additional signal or interruption of circuit is not required. A dynamic calibration is processed. A timing-skew error is kept in a low level and a process mismatch is not a concern. Moreover, sampling frequency and input signal frequency are improved. A high sampling frequency and a high speed of signal inputting are achieved; and chip area can be greatly shrunk because the extra calibration circuits are simple digital circuits.