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.

Date of Patent:
Jan. 26, 2010

Filed:

Apr. 11, 2005
Applicants:

Mathias Fink, Meudon, FR;

Geoffroy Lerosey, Paris, FR;

Arnaud Derode, Paris, FR;

Julien DE Rosny, Nogent sur Marne, FR;

Arnaud Tourin, Sevres, FR;

Inventors:

Mathias Fink, Meudon, FR;

Geoffroy Lerosey, Paris, FR;

Arnaud Derode, Paris, FR;

Julien De Rosny, Nogent sur Marne, FR;

Arnaud Tourin, Sevres, FR;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

According to the invention, a wave, corresponding to a signal s(t) may be temporally inverted by application of a first transformation to lower the central frequency thereof to produce a first set of transformed signals Ki(t) then a second set of transformed signals K'i(t) is produced representing the temporal inversion signal s(−t) and a third transformation is applied to said second set to generate the temporally-inverted signal s(−t)


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