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:
Jul. 11, 2006
Filed:
Sep. 29, 2004
Georgi I Radulov, Eindhoven, NL;
Patrick J. Quinn, Chapelizod, IE;
Johannes A. Hegt, Rosmalen, NL;
Arthur H. M. Van Roermund, Helmond, NL;
Georgi I Radulov, Eindhoven, NL;
Patrick J. Quinn, Chapelizod, IE;
Johannes A. Hegt, Rosmalen, NL;
Arthur H. M. van Roermund, Helmond, NL;
Xilinx, Inc., San Jose, CA (US);
Abstract
A method and apparatus for calibrating a current source to a reference current through the use of 1-bit current comparisons. A temporary current source is first calibrated to the reference current, which allows an input offset current generated by the current comparator to be memorized. The current to be calibrated is then fine-tuned to the temporary current within specified limits, which effectively cancels comparison error that is generated by the input offset current.