Issued Patents 2002
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498627 | Use of wideband DTV overlay signals for brevity signaling and public safety | John Erik Hershey, Mark Lewis Grabb | 2002-12-24 |
| 6497656 | Integrated wireless broadband communications network | Scott Charles Evans, John Erik Hershey, David Michael Davenport, Harold Woodruff Tomlinson, Jr., Ralph Thomas Hoctor +1 more | 2002-12-24 |
| 6459741 | Implementation of N-VSB training sequences in N-squared QAM receiver structures | Mark Lewis Grabb, John Erik Hershey | 2002-10-01 |
| 6437832 | Mitigation of multipath using ultra wideband DTV overlay signal | Mark Lewis Grabb, John Erik Hershey | 2002-08-20 |
| 6433744 | Wideband patch antenna | John Erik Hershey, Gregory Bruce Robinson, Daniel White Sexton, David Michael Davenport, Gary William Yeager | 2002-08-13 |
| 6430210 | Receiver for detecting an amplitude modulated signal insinuated on an GHM signal | Donald T. McGrath, John Erik Hershey | 2002-08-06 |
| 6417890 | Modulation of pilot tone amplitude in DTV broadcast for faster channel acquisition | John Erik Hershey, Mark Lewis Grabb | 2002-07-09 |
| 6417805 | Three-dimensional channel sounder for DTV receivers | John Erik Hershey, Mark Lewis Grabb | 2002-07-09 |
| 6366199 | Method and apparatus for measuring and accumulating critical automobile warranty statistical data | Brock Estel Osborn, John Erik Hershey, Russell Robert Irving, Nick Andrew Van Stralen | 2002-04-02 |