Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4984901 | Magnetic recording disc having sector reference zone, device for reading same, and magnetooptical memory optoelectronic employing said device | — | 1991-01-15 |
| 4893207 | Magnetic writing and optical reading head for a data carrier | Dan Pham, Jean-Marie Richard | 1990-01-09 |
| 4786994 | Method of and apparatus for controlling the displacement of a movable system driven by an electric motor | Daniel Carteau, Jean-Jacques Couette, Pham Dan Tam | 1988-11-22 |
| 4755892 | Method of and apparatus for displacing a movable system driven by an electric motor along a given trajectory | Daniel Carteau, Jean-Jacques Couette, Pham D. Tam | 1988-07-05 |
| 4633343 | Method of and apparatus for writing data on a recording medium and the medium so produced | Jean Lequien, Denis Pinson | 1986-12-30 |
| 4383207 | Apparatus and method for displacing movable system with respect to a data carrier | — | 1983-05-10 |
| 4379256 | Apparatus and method for measuring the speed of a movable system with respect to a data carrier | — | 1983-04-05 |
| 4281291 | Arrangement for detecting the binary values of bit cells having center transitions subject to phase distortion | Jean-Claude Lamare | 1981-07-28 |
| 4188620 | Phase decoder | Jean-Claude Lamare | 1980-02-12 |