| 8260113 |
Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto |
Victor A. Aijala, James M. Jensen, Wendell Lynch, Juan C. Urbi |
2012-09-04 |
| 7316025 |
Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto |
Victor A. Aijala, James M. Jensen, Wendell Lynch, Juan C. Urbi |
2008-01-01 |
| 5740035 |
Self-administered survey systems, methods and devices |
Louis W. Conley, Roberta M. McConochie, Robert H. Patchen, James D. Peacock, Claude A. Rankin +1 more |
1998-04-14 |
| 5579124 |
Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto |
Victor A. Aijala, James M. Jensen, Wendell Lynch, Juan C. Urbi |
1996-11-26 |
| 5235414 |
Non-obtrusive programming monitor |
— |
1993-08-10 |