Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570943 | Method for equalization of complementary carriers in an AM compatible digital audio broadcast system | David Carl Hartup, Marcus Matherne | 2003-05-27 |
| 6556639 | Method and apparatus for determining transmission mode and synchronization for a digital audio broadcasting signal | Marcus Matherne | 2003-04-29 |
| 6532258 | Method for estimating signal-to-noise ratio of digital carriers in an AM compatible digital audio broadcasting system | Marcus Matherne | 2003-03-11 |
| 6480536 | Method and apparatus for demodulating and equalizing an AM compatible digital audio broadcast signal | David Carl Hartup | 2002-11-12 |
| 6452977 | Method and apparatus for AM compatible digital broadcasting | David Carl Hartup, Marcus Matherne | 2002-09-17 |
| 6400758 | Method and apparatus for training sequence identification in an AM compatible digital audio broadcasting system | Marcus Matherne | 2002-06-04 |
| 6295317 | Method and apparatus for demodulating and equalizing an AM compatible digital audio broadcast signal | David Carl Hartup | 2001-09-25 |
| 6292511 | Method for equalization of complementary carriers in an AM compatible digital audio broadcast system | David Carl Hartup, Marcus Matherne | 2001-09-18 |
| 5956373 | AM compatible digital audio broadcasting signal transmision using digitally modulated orthogonal noise-like sequences | David W. Evans, David Carl Hartup | 1999-09-21 |