Improved system and method for implementation of an echo canceller

Details for Australian Patent Application No. 2005242180 (hide)

Owner Qualcomm Incorporated

Inventors Gupta, Samir K

Agent Madderns

Pub. Number AU-B-2005242180

Parent 34606

Filing date 9 December 2005

Wipo publication date 12 January 2006

Acceptance publication date 9 August 2007

International Classifications

H04M 9/08 (2006.01) Arrangements for interconnection not involving centralised switching - Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic

H04B 3/23 (2006.01) Line transmission systems - using a replica of transmitted signal in the time domain, e.g. echo cancellers

Event Publications

22 December 2005 Complete Application Filed

12 January 2006 Application Open to Public Inspection

  Published as AU-B-2005242180

9 August 2007 Application Accepted

  Published as AU-B-2005242180

6 December 2007 Standard Patent Sealed

18 August 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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