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:
Oct. 06, 2009
Filed:
Dec. 08, 2003
Lucio F. C. Pessoa, Cedar Park, TX (US);
Roman A. Dyba, Austin, TX (US);
Perry P. He, Austin, TX (US);
Ahsan Ul Aziz, Austin, TX (US);
Lucio F. C. Pessoa, Cedar Park, TX (US);
Roman A. Dyba, Austin, TX (US);
Perry P. He, Austin, TX (US);
Ahsan Ul Aziz, Austin, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A method and apparatus for dynamically inserting gain in an adaptive filter is taught. This selective insertion of gain may be used to allow an adaptive filter to converge more quickly and/or to overcome inherent limitations of the adaptive filter. An echo canceller (e.g.andin FIG.) is just one possible use for an adaptive filter having a shorter convergence time. However, virtually all uses of an adaptive filter can benefit from a shorter convergence time and/or improved filtering performance.