Inventor · disambiguated record
Toshihiko Ryu
Also filed as: RYU TOSHIHIKO
11 granted patents·257 citations·filing 1979–1986
92Inventor score
Top patents by PatentIndex Score
11 records- 0179US4575862ACross-polarization distortion canceller for use in digital radio communication receiverNEC CORP·Filed 1983·Granted Mar 11, 1986·49 cites·15 claims
- 0278US4258340AAmplitude equalizerNIPPON ELECTRIC CO·Filed 1979·Granted Mar 24, 1981·30 cites·12 claims
- 0376US4789993AOne frequency repeater for a digital radio systemNEC CORP·Filed 1986·Granted Dec 6, 1988·46 cites·9 claims
- 0465US4688235ACross-polarization interference cancellerNEC CORP·Filed 1985·Granted Aug 18, 1987·32 cites·11 claims
- 0554US4627072AEqualizer modifying a phase of a gain control signal to carry out equalizationNEC CORP·Filed 1984·Granted Dec 2, 1986·15 cites·16 claims
- 0653US4675619AMultiple quadrature-phase amplitude modulating system capable of reducing a peak amplitudeNEC CORP·Filed 1985·Granted Jun 23, 1987·21 cites·8 claims
- 0753US4453256AAdaptive equalizer system for quadrature amplitude modulationNIPPON ELECTRIC CO·Filed 1981·Granted Jun 5, 1984·14 cites·7 claims
- 0852US4333063AAmplitude equalizerNIPPON ELECTRIC CO·Filed 1980·Granted Jun 1, 1982·14 cites·4 claims
- 0949US4663768ADiversity system of selection type equipped with a code correction/switch circuit for receiving a PSK or QAM wave carrying differentially encoded signalNEC CORP·Filed 1985·Granted May 5, 1987·15 cites·10 claims
- 1045US4546323AQuadrature amplitude demodulator comprising a combination of a full-wave rectifying circuit and binary detectorsNEC CORP·Filed 1983·Granted Oct 8, 1985·11 cites·5 claims
- 1143US4540948A8-Phase phase-shift keying demodulatorNEC CORP·Filed 1983·Granted Sep 10, 1985·10 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →