Authentication watermarks for printed objects and related applications

Details for Australian Patent Application No. 2001277147 (hide)

Owner Digimarc Corporation

Inventors Perry, Burt W.; Carr, J. Scott

Agent Spruson & Ferguson

Pub. Number AU-B-2001277147

PCT Pub. Number WO02/09019

Priority 09775934 02.02.01 US; 09625577 25.07.00 US

Filing date 24 July 2001

Wipo publication date 5 February 2002

Acceptance publication date 18 May 2006

International Classifications

H04N 1/32 (2006.01) Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission - Circuits or arrangements for control or supervision between transmitter and receiver

G06T 1/00 (2006.01) General purpose image data processing

G07D 7/12 (2006.01) Testing paper currency, securities, bonds, or similar valuable papers for genuineness

Event Publications

18 May 2006 Application Accepted

  Published as AU-B-2001277147

14 September 2006 Standard Patent Sealed

12 February 2009 Assignment Registered

  Digimarc Corporation The patent has been assigned to Digimarc Corporation

9 December 2010 Assignment Registered

  Digimarc Corporation The patent has been assigned to Digimarc Corporation

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