Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881240 | AM equalizer circuit for digital systems | David N. Critchlow, Sandra J. K. Earlam, Karle J. Johnson, Bruce A. Smetana, Gregory L. Westling +2 more | 1989-11-14 |
| 4825448 | Subscriber unit for wireless digital telephone system | David N. Critchlow, Sandra J. K. Earlam, Karle J. Johnson, Bruce A. Smetana, Gregory L. Westling | 1989-04-25 |
| 4817089 | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels | Eric Paneth, Mark J. Handzel, Steven A. Morley | 1989-03-28 |
| 4811420 | Initialization of communication channel between a subsciber station and a base station in a subscriber communication system | Thomas E. Fletcher, Gregory T. Saffee | 1989-03-07 |