×

Interactive TV audience estimation and program rating in real-time using multi level tracking methods, systems and program products

  • US 20020087969A1
  • Filed: 12/28/2000
  • Published: 07/04/2002
  • Est. Priority Date: 12/28/2000
  • Status: Abandoned Application
First Claim
Patent Images

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×