Audio copy protection system

Details for Australian Patent Application No. 2005293381 (hide)

Owner DCS Copy Protection Limited

Inventors Tan, Baolin; Robinson, David John Michael

Agent Davies Collison Cave

Pub. Number AU-B-2005293381

PCT Pub. Number WO2006/040565

Priority 0422743.5 13.10.04 GB

Filing date 13 October 2005

Wipo publication date 20 April 2006

Acceptance publication date 21 April 2011

International Classifications

G11B 20/00 (2006.01) Signal processing not specific to the method of recording or reproducing

G10L 19/00 (2006.01) Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders

H04N 5/913 (2006.01) Details of television systems - for scrambling

H04N 5/7826 (2006.01) Details of television systems

H04N 9/835 (2006.01) Details of colour television systems

Event Publications

7 June 2007 PCT application entered the National Phase

  PCT publication WO2006/040565 Priority application(s): WO2006/040565

1 October 2009 Assignment before Grant

  Dwight Cavendish Systems Limited The application has been assigned to DCS Copy Protection Limited

21 April 2011 Application Accepted

  Published as AU-B-2005293381

18 August 2011 Standard Patent Sealed

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