Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6888812 | CDMA receiver | — | 2005-05-03 |
| 6249235 | Sampling frequency conversion apparatus and fractional frequency dividing apparatus for sampling frequency | — | 2001-06-19 |
| 6232761 | Frequency estimating system | — | 2001-05-15 |
| 6147632 | Sampling frequency conversion apparatus and fractional frequency dividing apparatus for sampling frequency conversion | — | 2000-11-14 |
| 6108679 | Discontinuous signal interpolation circuit | — | 2000-08-22 |
| 6088411 | Method and apparatus for a unique word differential detection and demodulation using the unique word differential detection | Darren Powierski | 2000-07-11 |
| 6016329 | Method and apparatus for preamble-less demodulation | — | 2000-01-18 |
| 5912930 | Phase shift keying signal demodulation method and device | — | 1999-06-15 |
| 5838797 | Secure communication by encryption/decryption of vector at PSK modulation/detection stage | — | 1998-11-17 |
| 5513222 | Combining circuit for a diversity receiving system | — | 1996-04-30 |
| 5500878 | Automatic frequency control apparatus and method therefor | — | 1996-03-19 |
| 5463401 | Method and arrangement of pointing an antenna beam to a stationary satellite | — | 1995-10-31 |
| 5440267 | Demodulator | Hiroki Tsuda | 1995-08-08 |
| 5384552 | Clock recovery circuit for extracting clock information from a received baseband signal | — | 1995-01-24 |
| 5363415 | Carrier regenerating device correctly operable in mobile satellite communication | — | 1994-11-08 |
| 5276710 | Carrier frequency error detector capable of accurately detecting a carrier frequency error | — | 1994-01-04 |
| 5260896 | Adaptive filter and a method of preventing divergent behavior of the adaptive filter | — | 1993-11-09 |
| 5245612 | Spread packet communication system | Seiji Kachi, Susumu Otani, Shoji Endo, Shinichi Kono | 1993-09-14 |
| 5157694 | Coherent PSK demodulator using bit error rate and S/N ratio to establish synchronization | Susumu Otani | 1992-10-20 |
| 5148451 | Carrier regeneration device correctly operable in mobile satellite communication | Susumu Otani | 1992-09-15 |
| 5128626 | Coherently demodulating arrangement including quasi-coherent demodulator for PSK signals | — | 1992-07-07 |
| 5012491 | Preamable detection circuit for digital communications system | — | 1991-04-30 |
| 4853642 | Phase controlled demodulator for digital communications system | Susumu Otani | 1989-08-01 |