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:
May. 17, 2005
Filed:
Mar. 20, 2000
Pascal Scalart, Ploubezre, FR;
Franck Bouteille, Lannion, FR;
Pascal Scalart, Ploubezre, FR;
Franck Bouteille, Lannion, FR;
France Telecom, Paris, FR;
Abstract
The device receives an input signal xand an observation signal y, one component of which is the response of a system to the input signal. It determines an error signal eat an instant t in accordance with the equation e=y−XH, where His a vector made up of L coefficients of an identification filter having a finite impulse response representative of the impulse response of the system and X=(x, x, . . . , x). A predictive analysis of the input signal is performed by a computation applied to frames of the input signal. The L coefficients of the identification filter are adapted by adding to the vector Ha vector proportional towhere Uis a vector made up of the L values of a prediction residue of the input signal at the instant t and at the preceding L−1 instants, and λ is a positive or zero coefficient.