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:
Feb. 16, 2010
Filed:
Jan. 03, 2008
Bret Roberts Dale, Jericho, VT (US);
Ryan Andrew Jurasek, S. Burlington, VT (US);
Darin James Daudelin, Williston, VT (US);
Dave Eugene Chapmen, Shelburne, VT (US);
Bret Roberts Dale, Jericho, VT (US);
Ryan Andrew Jurasek, S. Burlington, VT (US);
Darin James Daudelin, Williston, VT (US);
Dave Eugene Chapmen, Shelburne, VT (US);
Nanya Technology Corp., Kuelshan, Tao-Yuan Hsien, TW;
Abstract
An apparatus for compensating slew rate of a driving circuit includes: a first circuit, for receiving an edge transition from the driving circuit and generating a first pulse proportional to an actual slope of the edge transition; a second circuit, for receiving an ideal edge transition of the driving circuit and generating a second pulse proportional to an ideal slope of the ideal edge transition; a comparison circuit, coupled to the first circuit and the second circuit, for comparing an extreme value of amplitude of the first pulse with an extreme value of amplitude of the second pulse to produce a comparison signal; and a control circuit, coupled to the comparison circuit, for increasing or decreasing the slew rate of the driving circuit according to the comparison signal.