Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5155762 | Method and a system for acquiring and transmitting information about TV program audiences | Jean-Louis Croquet, Jean-Pierre Bidon, Pierre Duval | 1992-10-13 |
| 4922093 | Method and a device for determining the number of people present in a determined space by processing the grey levels of points in an image | Michel Fardeau, Yves Guern, Jean P. Dignac | 1990-05-01 |