Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8434100 | Source detection apparatus and method for audience measurement | Daozheng Lu | 2013-04-30 |
| 7958526 | Source detection apparatus and method for audience measurement | Daozheng Lu | 2011-06-07 |
| 7774807 | Source detection apparatus and method for audience measurement | Daozheng Lu | 2010-08-10 |
| 7587728 | Methods and apparatus to monitor reception of programs and content by broadcast receivers | Daozheng Lu, Paul C. Kempter, William A. Feininger | 2009-09-08 |
| 6675383 | Source detection apparatus and method for audience measurement | Daozheng Lu | 2004-01-06 |
| 6513161 | Monitoring system for recording device | Daozheng Lu | 2003-01-28 |
| 5737025 | Co-channel transmission of program signals and ancillary signals | Robert Dougherty, David A. Kiewit, Daozheng Lu | 1998-04-07 |
| 5737026 | Video and data co-channel communication system | Daozheng Lu, Edgar W. Aust, Robert Dougherty | 1998-04-07 |