Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8009703 | Method and device for transmitting complementary data in an analog radio transmission system | Frank Hofmann | 2011-08-30 |
| 7280809 | Method for adjusting transmission parameters from a transmitter for digital radio signals | Frank Hofmann | 2007-10-09 |
| 6434138 | Process for transmitting messages by digital sound broadcasting and receiver for carrying out this process | Ulrich Kersken, Karin Hempel | 2002-08-13 |
| 6130915 | Process for transferring digital data via interference-affected radio channels and device for receiving digital data transmitted via interference-affected radio channels | Juergen Hallier, Henrik Schulze | 2000-10-10 |
| 5281308 | Pick-up roll apparatus | — | 1994-01-25 |