Voice signal processing system moun- ted with echo canceller and voice signal processing method

Details for Australian Patent Application No. 2003203785 (hide)

Owner NEC Corporation

Inventors Koyama, Kazuhiko; Numata, Yasushi

Agent Spruson & Ferguson

Pub. Number AU-A-2003203785

Priority 2002-118114 19.04.02 JP

Filing date 22 April 2003

Wipo publication date 6 November 2003

International Classifications

G10L 021/02 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

H04M 001/19 Substation equipment, e.g. for use by subscribers - Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission

H04B 003/23 Line transmission systems - using a replica of transmitted signal in the time domain, e.g. echo cancellers

Event Publications

15 May 2003 Complete Application Filed

  Priority application(s): 2002-118114 19.04.02 JP

6 November 2003 Application Open to Public Inspection

  Published as AU-A-2003203785

7 September 2006 Assignment before Grant

  NEC Corporation The application has been assigned to NEC Infrontia Corporation

18 November 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(d). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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