Rixon, Inc.
10Patents
0Active
10Granted
30Portfolio score
Filing activity: Sep 17, 1974 → Sep 26, 1983
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3983485A | Multi-phase and multi-amplitude level modulator and modulation and demodulation methods | Electricity | 40 | Expired |
| US4123710A | Partial response QAM modem | Electricity | 37 | Expired |
| US4489416A | Equalization system for modems in a polled arrangement | Electricity | 34 | Expired |
| US3984778A | Carrier recovery scheme for a SSB-SC signal | Electricity | 23 | Expired |
| US4355397A | Full duplex communication system for voice grade channels | Electricity | 22 | Expired |
| US4042884A | Phase demodulator with offset frequency reference oscillator | Electricity | 14 | Expired |
| US4555667A | Synchronous digital QPSK demodulator with carrier error correction | Electricity | 10 | Expired |
| US4054838A | QAM phase jitter and frequency offset correction system | Electricity | 10 | Expired |
| US3946214A | Multi-level digital filter | Electricity | 7 | Expired |
| US4380062A | Communication system providing simultaneous two-way transmission | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.