EFFICIENT INTERACTIVE TV

Details for Australian Patent Application No. 2002242009 (hide)

Owner DIGIMARC CORPORATION

Inventors LEVY, Kenneth, L.; RODRIGUEZ, Tony, F.; HIATT, R. Stephen

Pub. Number AU-A-2002242009

PCT Pub. Number WO2002/062009

Priority 60/265,392 30.01.01 US; 60/270,782 20.02.01 US; 60/276,543 15.03.01 US

Filing date 28 January 2002

Wipo publication date 12 August 2002

International Classifications

H04L 009/00 Arrangements for secret or secure communication

H04L 009/32 Arrangements for secret or secure communication - including means for verifying the identity or authority of a user of the system

H04N 007/173 Television systems - with two-way working, e.g. subscriber sending a programme selection signal

Event Publications

20 February 2003 Application Open to Public Inspection

  Published as AU-A-2002242009

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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