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:
Feb. 21, 2012
Filed:
Mar. 22, 2007
Applicants:
Mark Raifel, Ra'anana, IL;
Yakov Chen, Rishon Letzion, IL;
Eli Shoval, Rosh Ha'ayin, IL;
Inventors:
Assignee:
AudioCodes Ltd., Lod, IL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/24 (2006.01); H04M 3/08 (2006.01); H04M 3/22 (2006.01); H04M 9/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of determining if an echo canceller comprised in a communication channel that is used to transmit at least one tonal signal and characterized by a model echo path of the channel, is acceptably adapted to cancel echoes in the channel, the method comprising: determining a performance measure how well the canceller cancels echoes of at least one test signal characterized by at least one frequency different from a frequency of the at least one tonal signal; and determining if the canceller is acceptably adapted responsive to the measure.