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. 31, 2010
Filed:
Dec. 22, 2005
Eyal Shlomot, Long Beach, CA (US);
Jeffrey D. Klein, Monterey, CA (US);
Carlo Murgia, Aliso Viejo, CA (US);
Adil Benyassine, Irvine, CA (US);
Eyal Shlomot, Long Beach, CA (US);
Jeffrey D. Klein, Monterey, CA (US);
Carlo Murgia, Aliso Viejo, CA (US);
Adil Benyassine, Irvine, CA (US);
Mindspeed Technologies, Inc., Newport Beach, CA (US);
Abstract
There are provided methods and systems for automated testing of echo cancellers using natural speech excitations and evaluating an echo canceller by transmitting a first signal to the echo canceller, wherein the first signal includes a first speech signal and a first marker signal, and wherein the first marker signal is transmitted a first period of time after the first speech signal is transmitted; receiving a second signal from the echo canceller, wherein the second signal includes a second speech signal and a second marker signal; aligning the first speech signal and the second speech signal using the first marker signal and the second marker signal; determining a choppiness of the second speech signal, when a non-linear processor of the echo canceller is on; and determining an audible echo, when a non-linear processor of the echo canceller is off.