Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6694136 | Radio communication system, terminal equipment used therefor and service control station used therefor | — | 2004-02-17 |
| 6456840 | Radio communication system, terminal equipment used therefor, and service control station used therefor | — | 2002-09-24 |
| 6226505 | Automatic frequency correction apparatus and method for radio calling system | — | 2001-05-01 |
| 5940744 | Local frequency correction | — | 1999-08-17 |