Pichet T Ong

Author:

Pichet Ong

ISBN #:

0060857676

US Patent:

20060227963, Oct 12, 2006

Filed:

Mar 9, 2006

Appl. No.:

11/371085

Inventors:

Bruce Bernard - Richmond, CA
Li Kwok - Richmond, CA
Oliver Ren - Richmond, CA
Pichet Ong - West Jordan UT, US

Assignee:

Ascalade Communications Inc. - Richmond
ClearOne Communications, Inc. - Salt Lake City UT

International Classification:

H04M 9/00
H04M 1/00
H04M 9/08

US Classification:

379388010, 379388020, 379432000, 379406010, 455569100

Abstract:

A wireless conference phone system has a base station to couple at least one conference unit to a telephone network, such as the public switched telephone network (PSTN) or a digital telephone network such as a voice over internet protocol (VolP) network. Each conference unit performs echo cancellation of the audio signal received from a remote location allowing a simplified base station implementation