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. 20, 2007
Filed:
Oct. 09, 2003
Applicant:
Ronald P. Smith, Redondo Beach, CA (US);
Inventor:
Ronald P. Smith, Redondo Beach, CA (US);
Assignee:
Northrop Grumman Corporation, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fast Fourier transform (FFT) circuit from which unneeded butterfly computation modules can be effectively pruned for specific applications. Each module that is not needed is pruned by injecting zero signals into it, thereby minimizing the power dissipated in the pruned circuit. A multiplexer integrated into each butterfly module output (or input) line allows the line signal to be either forced to zero or allowed to carry a nonzero signal.