Inventor · disambiguated record
Takashi Kaku
Also filed as: KAKU TAKASHI
73 granted patents·11 pending applications·835 citations·filing 1980–2006
99Inventor score
Files withFUJITSU LTD71FUJITSU FRONTECH LTD1KAKU TAKASHI1NEC TOKIN CORP1NIPPON TELEGRAPH & TELEPHONE1
Top patents by PatentIndex Score
84 records- 0192US4630126AMethod of signal transmission with selected signal transmission rateFUJITSU LTD·Filed 1984·Granted Dec 16, 1986·85 cites·7 claims
- 0275US7110465B2Noise canceling method and apparatusFUJITSU LTD·Filed 2001·Granted Sep 19, 2006·14 cites·22 claims
- 0375US4868850AMODEM communication system having training means and method for training sameFUJITSU LTD·Filed 1986·Granted Sep 19, 1989·45 cites·12 claims
- 0473US7251289B2Data transmission method and data transmission apparatusFUJITSU LTD·Filed 2006·Granted Jul 31, 2007·4 cites·5 claims
- 0573US4571733AAutomatic equalization device and method of starting-up the sameFUJITSU LTD·Filed 1982·Granted Feb 18, 1986·32 cites·8 claims
- 0672US7113557B2Noise canceling method and apparatusFUJITSU LTD·Filed 2002·Granted Sep 26, 2006·16 cites·14 claims
- 0769US6978937B2Method of reading information and apparatus therefor, method of acquiring signal for use with information reading apparatus, method of processing band limitation, method of extracting timing point amplitude and method of processing signal thereof, read signal processing unit, and method of processing read signal and processing apparatus thereofFUJITSU LTD·Filed 2003·Granted Dec 27, 2005·13 cites·9 claims
- 0868US7019611B2Modem coupling circuit for power-line carrierNEC TOKIN CORP·Filed 2004·Granted Mar 28, 2006·12 cites·7 claims
- 0967US4482973ADigital automatic gain control circuitFUJITSU LTD·Filed 1982·Granted Nov 13, 1984·17 cites·5 claims
- 1066US7286494B2Polling communication system and polling control methodFUJITSU LTD·Filed 2002·Granted Oct 23, 2007·9 cites·9 claims
- 1164US4799214ATwo-wire full duplex frequency division multiplex modem system having echo cancellation meansFUJITSU LTD·Filed 1986·Granted Jan 17, 1989·28 cites·8 claims
- 1263US5757865ACarrier phase control circuitFUJITSU LTD·Filed 1995·Granted May 26, 1998·49 cites·15 claims
- 1361US6052037AModulation method and apparatusFUJITSU LTD·Filed 1998·Granted Apr 18, 2000·21 cites·11 claims
- 1460US7173959B2Noise elimination method and apparatusFUJITSU LTD·Filed 2002·Granted Feb 6, 2007·5 cites·11 claims
- 1560US7130356B2Data transmission method and data transmission apparatusFUJITSU LTD·Filed 2002·Granted Oct 31, 2006·5 cites·9 claims
- 1660US6985539B2Peak suppression method and data transmission apparatusFUJITSU LTD·Filed 2001·Granted Jan 10, 2006·6 cites·28 claims
- 1759US5448595AAutomatic gain control circuit for a demodulation section of a modemFUJITSU LTD·Filed 1993·Granted Sep 5, 1995·17 cites·13 claims
- 1857US5625643AModulator and demodulator apparatusFUJITSU LTD·Filed 1993·Granted Apr 29, 1997·27 cites·8 claims
- 1955US4607230AReceiver unit having synchronous pull-in circuitFUJITSU LTD·Filed 1985·Granted Aug 19, 1986·24 cites·26 claims
- 2054US7269215B2Equalization processing method and the apparatus for periodic fluctuation of transmission line characteristicFUJITSU LTD·Filed 2001·Granted Sep 11, 2007·2 cites·10 claims
- 2154US6882684B2Automatic gain control circuit, data communication device and automatic gain control methodFUJITSU LTD·Filed 2001·Granted Apr 19, 2005·4 cites·10 claims
- 2254US5563908AModulator and demodulator apparatusFUJITSU LTD·Filed 1995·Granted Oct 8, 1996·27 cites·4 claims
- 2353US7394848B2Method and apparatus for time equalizationFUJITSU LTD·Filed 2003·Granted Jul 1, 2008·2 cites·12 claims
- 2452US7286600B2Data transmission method and data transmission deviceFUJITSU LTD·Filed 2003·Granted Oct 23, 2007·1 cites·16 claims
- 2552US6898256B2Synchronization method and apparatusFUJITSU LTD·Filed 2002·Granted May 24, 2005·2 cites·22 claims
- 2651US5557632ADemodulation and roll-off filter apparatusFUJITSU LTD·Filed 1993·Granted Sep 17, 1996·11 cites·10 claims
- 2751US4672630ATraining method of data receiving equipmentFUJITSU LTD·Filed 1983·Granted Jun 9, 1987·12 cites·5 claims
- 2849US5583887ATransmission signal processing apparatusFUJITSU LTD·Filed 1993·Granted Dec 10, 1996·19 cites·12 claims
- 2949US4317207AData transmission systemNIPPON TELEGRAPH & TELEPHONE·Filed 1980·Granted Feb 23, 1982·15 cites·14 claims
- 3048US5694422AFixed equalizer and equalizing methodFUJITSU LTD·Filed 1996·Granted Dec 2, 1997·15 cites·7 claims
- 3147US5896420ATransmission apparatus having echo cancellation facilityFUJITSU LTD·Filed 1996·Granted Apr 20, 1999·23 cites·8 claims
- 3247US5719907APhase jitter extraction circuit and phase jitter cancellation circuitFUJITSU LTD·Filed 1995·Granted Feb 17, 1998·21 cites·8 claims
- 3347US5537437AInitialization equalization for modulation and demodulation using special training patternFUJITSU LTD·Filed 1995·Granted Jul 16, 1996·24 cites·8 claims
- 3447US4694469AMethod and device for timing pull-in of receiving equipmentFUJITSU LTD·Filed 1986·Granted Sep 15, 1987·13 cites·14 claims
- 3546US7055748B2Barcode reader, method and program for reading barcode, and module-point extracting apparatusFUJITSU FRONTECH LTD·Filed 2005·Granted Jun 6, 2006·0 cites·10 claims
- 3646US2006256890A1Noise cancelling method and apparatusKAKU TAKASHI·Filed 2006·Application pending·0 cites
- 3744US4445224APull-in circuit for a digital phase locked loopFUJITSU LTD·Filed 1981·Granted Apr 24, 1984·11 cites·12 claims
- 3844US2003117647A1Method and apparatus for data transmissionFiled 2002·Application pending·0 cites
- 3944US2003142622A1Data transmission system and data transmission methodFiled 2002·Application pending·0 cites
- 4044US2001019582A1Frequency modulation method and modem unit employing such methodFiled 2001·Application pending·0 cites
- 4143US6104758AProcess and system for transferring vector signal with precoding for signal power reductionFUJITSU LTD·Filed 1997·Granted Aug 15, 2000·13 cites·42 claims
- 4243US5598434AAutomatic equalizer with a branched input for improved accuracyFUJITSU LTD·Filed 1995·Granted Jan 28, 1997·15 cites·6 claims
- 4342US6448861B2PLL controller, method of PLL control, and limiterFUJITSU LTD·Filed 2001·Granted Sep 10, 2002·3 cites·8 claims
- 4442US2001021639A1Radio communications system, radio communications method and radio communications device used in a radio communications systemFiled 2001·Application pending·0 cites
- 4542US2004125860A1Data transmission apparatus and data transmission methodFiled 2003·Application pending·0 cites
- 4641US6968497B2Error correction device and error correction methodFUJITSU LTD·Filed 2002·Granted Nov 22, 2005·2 cites·10 claims
- 4741US5710754AMultiplex transmission system wherein analog signal is transformed to base band random-transformed and superimposed on dispersed signal points in vector signal spaceFUJITSU LTD·Filed 1995·Granted Jan 20, 1998·10 cites·80 claims
- 4841US5598433AAutomatic equalizer and data mode convergence methodFUJITSU LTD·Filed 1995·Granted Jan 28, 1997·14 cites·18 claims
- 4941US2003137405A1Communication scheme suppressing leakage electromagnetic fieldsFiled 2002·Application pending·0 cites
- 5039US5440589AFrequency offset dealing modulator and demodulator apparatusFUJITSU LTD·Filed 1993·Granted Aug 8, 1995·11 cites·24 claims
Showing the top 50 of 84 patent records by PatentIndex Score.
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