Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882726 | Full duplex modem system for differing data bit rates | Fred M. Longstaff | 1989-11-21 |
| 4731799 | Means and method for block encoding detection and decoding | Fred M. Longstaff | 1988-03-15 |
| 4630288 | Data transmission with block coding | Fred M. Longstaff | 1986-12-16 |
| 4538284 | Signal structures with data encoding/decoding for QCM modulations | George D. Forney, Jr., Shahid U. H. Qureshi, Fred M. Longstaff, Chi-Hen Lee | 1985-08-27 |
| 4514855 | Means and method for reduction of phase jitter | Fred M. Longstaff, Chi-Hen Lee | 1985-04-30 |