Inventor · disambiguated record
Yasuharu Yoshida
Also filed as: YOSHIDA YASUHARU
33 granted patents·2 pending applications·502 citations·filing 1976–2005
97Inventor score
Top patents by PatentIndex Score
35 records- 0183US4751478AMultilevel modulator capable of producing a composite modulated signal comprising a quadrature amplitude modulated component and a phase modulated componentNEC CORP·Filed 1987·Granted Jun 14, 1988·71 cites·18 claims
- 0273US4875049AAutomatic level control circuit for an ad convertorNEC CORP·Filed 1988·Granted Oct 17, 1989·39 cites·12 claims
- 0372US4255713ACarrier regeneration circuit for polyphase modulation systemNIPPON ELECTRIC CO·Filed 1979·Granted Mar 10, 1981·22 cites·12 claims
- 0466US4965536AQuadrature amplitude modulation system using digital filtersNEC CORP·Filed 1989·Granted Oct 23, 1990·29 cites·2 claims
- 0564US4823363APhase-locked clock regeneration circuit for digital transmission systemsNEC CORP·Filed 1986·Granted Apr 18, 1989·27 cites·7 claims
- 0664US4553102AMultilevel amplitude modulation demodulator with DC drift compensationNEC CORP·Filed 1984·Granted Nov 12, 1985·21 cites·11 claims
- 0763US4574246ADemodulator with AGC circuit for multi-level quadrature amplitude-modulated carrier waveNEC CORP·Filed 1984·Granted Mar 4, 1986·21 cites·12 claims
- 0857US5134634AMultilevel quadrature amplitude demodulator capable of compensating for a quadrature phase deviation of a carrier signal pairNEC CORP·Filed 1990·Granted Jul 28, 1992·33 cites·6 claims
- 0956US6285858B1Electronic toll collection system and method featuring antenna arrangementNEC CORP·Filed 1998·Granted Sep 4, 2001·50 cites·3 claims
- 1055US4975927ADemodulator with composite transversal equalizer and eye detection clock synchronizerNEC CORP·Filed 1989·Granted Dec 4, 1990·19 cites·6 claims
- 1154US4334312APhase synchronizing circuit for use in multi-level, multi-phase, superposition-modulated signal transmission systemNIPPON ELECTRIC CO·Filed 1980·Granted Jun 8, 1982·15 cites·11 claims
- 1253US4095187ADemodulation system for a multi-level multi-phase superposition-modulated carrier waveNIPPON ELECTRIC CO·Filed 1977·Granted Jun 13, 1978·11 cites·3 claims
- 1351US4501004ADevice for eliminating FM or like interference from a digital microwave signalNIPPON ELECTRIC CO·Filed 1983·Granted Feb 19, 1985·15 cites·5 claims
- 1449US4109102APhase synchronizing circuitNIPPON ELECTRIC CO·Filed 1976·Granted Aug 22, 1978·10 cites·11 claims
- 1546US4823361AInterference immune digital modulation receiverNEC CORP·Filed 1987·Granted Apr 18, 1989·12 cites·24 claims
- 1646US2002014976A1On-vehicle radio communication equipment, a dedicated short range communication system, and on-vehicle radio communication methodNEC CORP·Filed 2001·Application pending·0 cites
- 1745US4703282ADigital demodulation systemNEC CORP·Filed 1986·Granted Oct 27, 1987·11 cites·2 claims
- 1842US4285062ADigital multi-level multi-phase modulation communication systemNIPPON ELECTRIC CO·Filed 1979·Granted Aug 18, 1981·8 cites·8 claims
- 1942US2006268743A1Information portable terminal apparatus and wireless communication systemFUJITSU LTD·Filed 2005·Application pending·0 cites
- 2040US8761003B2Digital transmission method and digital transmission systemYOSHIDA YASUHARU·Filed 2003·Granted Jun 24, 2014·0 cites·27 claims
- 2139US4528512ATiming synchronizing circuit for demodulatorsNEC CORP·Filed 1984·Granted Jul 9, 1985·7 cites·5 claims
- 2238US7099625B1Automobile communications method and systemNEC CORP·Filed 1999·Granted Aug 29, 2006·11 cites·50 claims
- 2338US4549142APhase demodulator including variable phase shifter for controlling reference carrierNEC CORP·Filed 1983·Granted Oct 22, 1985·7 cites·2 claims
- 2437US4721928AMultilevel modulator capable of producing a multilevel quadrature amplitude modulated signal having (2n +α) output signal pointsNEC CORP·Filed 1986·Granted Jan 26, 1988·11 cites·6 claims
- 2536US6269302B1Simple mobile object position detecting systemNEC CORP·Filed 1998·Granted Jul 31, 2001·10 cites·33 claims
- 2636US4757266ADemodulation system capable of establishing synchronization in a transient stateNEC CORP·Filed 1986·Granted Jul 12, 1988·7 cites·12 claims
- 2736US4099130APhase synchronizing circuitNIPPON ELECTRIC CO·Filed 1977·Granted Jul 4, 1978·4 cites·7 claims
- 2835US4620159ADemodulator for multiphase PSK or multilevel QAM signalsNEC CORP·Filed 1985·Granted Oct 28, 1986·6 cites·3 claims
- 2934US4799240AClock synchronizing circuit including a voltage controlled oscillatorNEC CORP·Filed 1986·Granted Jan 17, 1989·4 cites·21 claims
- 3034US4544894ADC Voltage control circuitsNEC CORP·Filed 1984·Granted Oct 1, 1985·4 cites·10 claims
- 3133US7464133B1Server/client systemFUJITSU LTD·Filed 1999·Granted Dec 9, 2008·7 cites·8 claims
- 3233US4750191AD/A converter capable of producing an analog signal having levels of a preselected number different from 2N and communication network comprising the D/A converterNEC CORP·Filed 1985·Granted Jun 7, 1988·3 cites·7 claims
- 3332US4755763ADemodulator capable of avoiding abnormal demodulationNEC CORP·Filed 1986·Granted Jul 5, 1988·3 cites·9 claims
- 3432US4498050ADemodulation device for composite PSK-PSK modulated wavesNEC CORP·Filed 1983·Granted Feb 5, 1985·3 cites·4 claims
- 3530US4631488AQAM demodulator with distortion compensationNEC CORP·Filed 1985·Granted Dec 23, 1986·1 cites·8 claims
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