Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684859 | Method and apparatus for downloading location specific information to selective call receivers | Walter L. Davis | 1997-11-04 |
| 5450612 | Communication system for communicating with a plurality of selective call receivers and method therefor | Zaffer S. Merchant, Xiaojun Li | 1995-09-12 |
| 5093925 | Three dimensional cellular communication system with coordinate offset and frequency reuse | — | 1992-03-03 |
| 4888793 | Phase correcting DPSK/PSK receiver with digitally stored phase correction derived from received data | Francis R. Steel | 1989-12-19 |