Method and system for processing subband signals using adaptive filters

Details for Australian Patent Application No. 2003258407 (hide)

Owner Emma Mixed Signal C.V.

Inventors Brennan, Robert, L.; Sheikhzadeh-Nadjar, Hamid; Sun, Dequn; Abutalebi, Hamid, Reza

Agent Allens Arthur Robinson

Pub. Number AU-B-2003258407

PCT Number PCT/CA03/01234

PCT Pub. Number WO2004/017303

Priority 2,399,159 16.08.02 CA

Filing date 18 August 2003

Wipo publication date 3 March 2004

Acceptance publication date 26 February 2009

International Classifications

H04R 3/02 (2006.01) Circuits for transducers - for preventing acoustic reaction

G10L 21/02 (2006.01) Processing of the speech signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility

H03H 21/00 (2006.01) Adaptive networks

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

Event Publications

13 November 2003 Complete Application Filed

  Priority application(s): 2,399,159 16.08.02 CA

22 April 2004 Application Open to Public Inspection

  Published as AU-B-2003258407

6 October 2005 Assignment before Grant

  Dspfactory Ltd The application has been assigned to Emma Mixed Signal C.V.

26 February 2009 Application Accepted

  Published as AU-B-2003258407

25 June 2009 Standard Patent Sealed

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