Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10985800 | Echo cancellation to alleviate timing varying channels | John T. Chapman, Tong Liu | 2021-04-20 |
| 10965332 | Echo cancellation (EC) training for a full duplex (FDX) amplifier | — | 2021-03-30 |
| 10931328 | Upstream (US) funneling noise suppression | — | 2021-02-23 |
| 10911210 | Time division duplex (TDD) full duplex (FDX) with a remote duty cycle (DS) framer | Tong Liu, John T. Chapman | 2021-02-02 |