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. 04, 2008
Filed:
Jan. 31, 2005
David L. Wilson, Muskego, WI (US);
David L. Wilson, Muskego, WI (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A device, method, and computer readable medium are used in connection with providing an indication of zero crossings corresponding to a signal. The signal () is received. Noise is removed from the signal (). In response to the signal with noise removed (), pairs of points and a time value corresponding to each point are determined (), wherein the points of each pair are proximate to a predetermined change in an amplitude of the signal. In response to the pairs and the corresponding time values (), a zero crossing time is determined for each pair (). A variation in the plurality of zero crossing times () is corrected (). A signal () or indication representative of the corrected zero crossing times is output.