KEY SYNCHRONIZATION IN A VISUAL CRYPTOGRAPHIC SYSTEM

Details for Australian Patent Application No. 2003276597 (hide)

Owner KONINKLIJKE PHILIPS ELECTRONICS N.V.

Inventors VAN DIJK, Marten, E.; TUYLS, Pim, T.

Pub. Number AU-A-2003276597

PCT Number PCT/IB03/05236

PCT Pub. Number WO2004/055757

Priority 02080388.8 18.12.02 EP

Filing date 17 November 2003

Wipo publication date 9 July 2004

International Classifications

G09C 005/00 Ciphering or deciphering apparatus or methods not provided for in other groups of this subclass, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages

G06F 001/00 Details not covered by groups and

H04L 009/12 Arrangements for secret or secure communication - Transmitting and receiving encryption devices synchronised or initially set up in a particular manner

H04N 001/44 Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission - Secrecy systems

Event Publications

19 February 2004 Complete Application Filed

  Priority application(s): 02080388.8 18.12.02 EP

19 August 2004 Application Open to Public Inspection

  Published as AU-A-2003276597

1 September 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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