Inventor · disambiguated record
Soichi Tsumura
Also filed as: TSUMURA SOICHI
26 granted patents·6 pending applications·553 citations·filing 1990–2017
97Inventor score
Top patents by PatentIndex Score
32 records- 0185US7403789B2Synchronization establishment between a mobile station and base station system and method used for themNEC CORP·Filed 2004·Granted Jul 22, 2008·41 cites·30 claims
- 0283US5831477APower amplifier system with variable outputNEC CORP·Filed 1996·Granted Nov 3, 1998·50 cites·20 claims
- 0382US9157214B2BulldozerKOMATSU MFG CO LTD·Filed 2013·Granted Oct 13, 2015·8 cites·4 claims
- 0481US7356022B2Mobile communication system, mobile station, base station, and packet communication method used thereforNEC CORP·Filed 2003·Granted Apr 8, 2008·30 cites·25 claims
- 0580US6044253AMethod and apparatus using first and second variable gain control circuits to reduce cross modulation in a radio receiverNEC CORP·Filed 1997·Granted Mar 28, 2000·42 cites·14 claims
- 0677US5132986ACsk communication systemNIPPON DENKI HOME ELECTRONICS·Filed 1990·Granted Jul 21, 1992·95 cites·43 claims
- 0768US5796306AWide range variable output amplifier apparatus with high efficiencyNEC CORP·Filed 1996·Granted Aug 18, 1998·28 cites·7 claims
- 0867US7574226B2System and method for mobile communicationNEC CORP·Filed 2004·Granted Aug 11, 2009·11 cites·36 claims
- 0965US7209762B2Mobile radio communication system and base station, and mobile radio communication method used thereforNEC CORP·Filed 2003·Granted Apr 24, 2007·9 cites·81 claims
- 1063US5883553AFilter unit adapted for miniaturization and for selecting a particular signal where a plurality of signals different in bandwidth coexistNEC CORP·Filed 1997·Granted Mar 16, 1999·29 cites·5 claims
- 1162US6690716B1Correlator for realizing low current consumptionNEC CORP·Filed 2000·Granted Feb 10, 2004·6 cites·32 claims
- 1261US5977839ACompensated frequency source with latched temperature compensation, and method for it's controlNEC CORP·Filed 1997·Granted Nov 2, 1999·13 cites·13 claims
- 1360US6580762B1Rate matching methodNEC CORP·Filed 1999·Granted Jun 17, 2003·20 cites·13 claims
- 1458US6075978AAutomatic gain control system and method of automatic gain controlNEC CORP·Filed 1997·Granted Jun 13, 2000·18 cites·4 claims
- 1556US5748129AAnalog to digital converter circuitNEC CORP·Filed 1995·Granted May 5, 1998·18 cites·5 claims
- 1655US6781974B1Method of assigning frequency using propagation lossNEC CORP·Filed 1999·Granted Aug 24, 2004·31 cites·8 claims
- 1754US6574200B1CDMA receiver comprising a synchronous timing notifying section capable of reaching low consumption of currentNEC CORP·Filed 1999·Granted Jun 3, 2003·21 cites·48 claims
- 1853US2013215816A1Pilot signal transmitting method, radio communication system, and apparatus and program used for the sameKURODA NAHOKO·Filed 2013·Application pending·0 cites
- 1951US2012113930A1Pilot signal transmitting method, radio communication system, and appartus and program used for the sameKURODA NAHOKO·Filed 2012·Application pending·0 cites
- 2051US2009175370A1Pilot signal transmitting method, radio communication system, and apparatus and program used for the sameNEC CORP·Filed 2007·Application pending·0 cites
- 2150US10469889B2Information distribution device, information reception device, system, program, and methodNEC CORP·Filed 2017·Granted Nov 5, 2019·0 cites·21 claims
- 2250US5550506ADQPSK demodulator capable of improving a symbol error rate without decreasing a transmission rateNEC CORP·Filed 1995·Granted Aug 27, 1996·26 cites·16 claims
- 2349US5918166ALevel control circuit for portable radio communication apparatusNEC CORP·Filed 1995·Granted Jun 29, 1999·12 cites·2 claims
- 2448US2014040948A1Information distribution device, information reception device, system, program, and methodASAI TOSHIO·Filed 2012·Application pending·0 cites
- 2543US2004127221A1Mobile communication system, mobile station, base station, and packet communication method used thereforNEC CORP·Filed 2003·Application pending·0 cites
- 2640US6912259B1Interpolation synchronous detection method and radio communication systemNEC CORP·Filed 1999·Granted Jun 28, 2005·9 cites·8 claims
- 2740US5710795AReceived signal decision apparatus for digital modulated signal receiverNEC CORP·Filed 1995·Granted Jan 20, 1998·13 cites·11 claims
- 2839US5511097ADelay detection circuitNEC CORP·Filed 1993·Granted Apr 23, 1996·11 cites·15 claims
- 2937US2001046846A1Mobile terminal and reception gain control method in mobile terminalNEC CORP·Filed 2001·Application pending·0 cites
- 3035US5272447ADemodulator and demodulation method for a digital phase modulated signalNEC CORP·Filed 1992·Granted Dec 21, 1993·7 cites·6 claims
- 3132US6754257B1Frame timing synchronization methodNEC CORP·Filed 1999·Granted Jun 22, 2004·3 cites·18 claims
- 3231US6553056B1CDMA receiver with a reduced number of required high speed addersNEC CORP·Filed 1999·Granted Apr 22, 2003·2 cites·8 claims
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