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:
Aug. 16, 2011
Filed:
May. 31, 2006
James M. Simkins, Park City, UT (US);
Vasisht Mantra Vadi, San Jose, CA (US);
Helen Hai-jo Tarn, San Jose, CA (US);
James M. Simkins, Park City, UT (US);
Vasisht Mantra Vadi, San Jose, CA (US);
Helen Hai-Jo Tarn, San Jose, CA (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
A pipeline Fast Fourier Transform ('FFT') architecture for a programmable device is described. A first Radix-2 butterfly stage is coupled to receive a first input, configured to provide a first output responsive thereto, and configured to truncate at least one Least Significant Bit of the first output. A delay and swap stage is coupled to receive the first output and configured to provide a second output. A second Radix-2 butterfly stage is coupled to receive the second output and a second input, configured to provide a third output responsive thereto, and configured to truncate at least one Most Significant Bit of the third output. The first Radix-2 butterfly stage and the second Radix-2 butterfly stage are implemented in digital signal processing slices of a programmable device.