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:
Jun. 09, 2015
Filed:
Jul. 28, 2014
Xilinx, Inc., San Jose, CA (US);
Gregory C. Copeland, Savannah, TX (US);
XILINX, INC., San Jose, CA (US);
Abstract
A system for crest factor reduction (CFR) includes a peak detector configured to receive an input signal (x); a running maximum filter configured to generate a scaling factor based on a window gain (G) and a filter length, wherein the window gain (G) is based on the input signal (x) and a threshold value (T); a window CFR gain filter configured to generate a gain correction (F) based on the scaling factor and the filter length; a delay configured to delay the input signal (x) to generate a delayed input signal; a multiplier configured to multiply the gain correction (F) by the delayed input signal to obtain a peak correction value; and an adder configured to determine an output signal (y) based on the peak correction value and the delayed input signal.