Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4789993 | One frequency repeater for a digital radio system | — | 1988-12-06 |
| 4688235 | Cross-polarization interference canceller | Masato Tahara, Tooru Matsuura | 1987-08-18 |
| 4675619 | Multiple quadrature-phase amplitude modulating system capable of reducing a peak amplitude | Junichi Uchibori, Yutaka Koizumi | 1987-06-23 |
| 4663768 | Diversity system of selection type equipped with a code correction/switch circuit for receiving a PSK or QAM wave carrying differentially encoded signal | — | 1987-05-05 |
| 4627072 | Equalizer modifying a phase of a gain control signal to carry out equalization | Shoichi Mizoguchi | 1986-12-02 |
| 4575862 | Cross-polarization distortion canceller for use in digital radio communication receiver | Masato Tahara | 1986-03-11 |
| 4546323 | Quadrature amplitude demodulator comprising a combination of a full-wave rectifying circuit and binary detectors | — | 1985-10-08 |
| 4540948 | 8-Phase phase-shift keying demodulator | — | 1985-09-10 |
| 4453256 | Adaptive equalizer system for quadrature amplitude modulation | — | 1984-06-05 |
| 4333063 | Amplitude equalizer | Yutaka Koizumi | 1982-06-01 |
| 4258340 | Amplitude equalizer | — | 1981-03-24 |