ENHANCED COPY PROTECTION OF PROPRIETARY MATERIAL EMPLOYING MULTIPLE WATERMARKS

Details for Australian Patent Application No. 2002252044 (hide)

Owner MACROVISON CORPORATION

Inventors HOLLAR, Mark

Pub. Number AU-A-2002252044

PCT Pub. Number WO2002/071403

Priority 09/799,648 06.03.01 US

Filing date 22 February 2002

Wipo publication date 19 September 2002

International Classifications

G11B 020/00 Signal processing not specific to the method of recording or reproducing

H04N 007/26 Television systems - using bandwidth reduction

Event Publications

13 March 2003 Application Open to Public Inspection

  Published as AU-A-2002252044

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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