Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5274629 | Method for the broadcasting of digital data, notably for radio broadcasting at high bit rate towards mobile receivers, with time-frequency interlacing and coherent demodulation | Jean-Francois Helard, Jean-Michel Lemesle, Bernard Le Floch | 1993-12-28 |
| 5197061 | Device for the transmission of digital data with at least two levels of protection and corresponding reception device | Jean-Francois Helard, Bernard Le Floch | 1993-03-23 |