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. 30, 2005
Filed:
Dec. 07, 1998
Applicants:
Ali Jalali, Rennes, FR;
Pierre Leray, Liffre, FR;
Dominique Lacroix, Ronnes, FR;
Inventors:
Assignees:
France Telecom SA, Paris, FR;
Telediffusion de France SA, Paris, Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
G06F017/14 ;
U.S. Cl.
CPC ...
Abstract
A method of calculating the fast Fourier transform or the inverse fast Fourier transform of a series of N real samples x(n), with N power of two, operating according to a time interleaving algorithm and providing the sample series X(n) in ascending order to index n and using limited calculating storage means. A method of calculating the fast Fourier transform or the inverse fast Fourier transform of a series of N conjugated complex samples X(n), with N power of two, operating according to a frequency interleaving algorithm.