Inventor · disambiguated record
Charles Razzell
Also filed as: RAZZELL CHARLES · RAZZELL CHARLES J · RAZZELL CHARLES JOHN · RAZZELL CHARLES JOHN HENDERSON
39 granted patents·6 pending applications·143 citations·filing 2000–2024
97Inventor score
Files withMAXIM INTEGRATED PRODUCTS21NXP BV7RAZZELL CHARLES7KONINKL PHILIPS ELECTRONICS NV2RAZZELL CHARLES JOHN2
Top patents by PatentIndex Score
45 records- 0198US11239909B2Dynamic error quantizer tuning systems and methodsMAXIM INTEGRATED PRODUCTS·Filed 2020·Granted Feb 1, 2022·6 cites·20 claims
- 0296US10985843B2Systems and methods for polarization control using blind source separationMAXIM INTEGRATED PRODUCTS·Filed 2020·Granted Apr 20, 2021·4 cites·19 claims
- 0396US10777851B2Multipoint communication systems for battery management systems, and associated systems and methodsMAXIM INTEGRATED PRODUCTS·Filed 2019·Granted Sep 15, 2020·8 cites·20 claims
- 0489US11251766B2Ultra-wide band frequency offset estimation systems and methods for analog coherent receiversMAXIM INTEGRATED PRODUCTS·Filed 2020·Granted Feb 15, 2022·2 cites·15 claims
- 0589US11233574B2Analog coherent signal processing systems and methodsMAXIM INTEGRATED PRODUCTS·Filed 2020·Granted Jan 25, 2022·2 cites·20 claims
- 0686US11811460B2Analog coherent signal processing systems and methodsMAXIM INTEGRATED PRODUCTS·Filed 2022·Granted Nov 7, 2023·1 cites·20 claims
- 0783US6975692B2Scaling of demodulated data in an interleaver memoryKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Dec 13, 2005·30 cites·18 claims
- 0882US8103234B2Automatic gain control using signal and interference power to obtain extended blocking performanceRAZZELL CHARLES·Filed 2009·Granted Jan 24, 2012·8 cites·5 claims
- 0980US11184203B2Systems and methods for identifying polarization/quadrature channels in dual-polarization coherent optical transmissionMAXIM INTEGRATED PRODUCTS·Filed 2020·Granted Nov 23, 2021·1 cites·20 claims
- 1080US8542827B2Shared encryption key generation via accelerometer digitizationRAZZELL CHARLES·Filed 2009·Granted Sep 24, 2013·9 cites·19 claims
- 1180US8009724B2Clear channel assessment (CCA) for UWB communications systemNXP BV·Filed 2005·Granted Aug 30, 2011·9 cites·6 claims
- 1280US2025047377A1Dynamic error quantizer tuning systems and methodsMAXIM INTEGRATED PRODUCTS·Filed 2024·Application pending·0 cites
- 1378US8958769B1Direct conversion receiver for angle modulated signalsRAZZELL CHARLES JOHN·Filed 2012·Granted Feb 17, 2015·5 cites·20 claims
- 1478US6901105B1Tracking of a multi-path resolved signal in a rake receiverKONINK PHILIPS ELECTRONCS N V·Filed 2000·Granted May 31, 2005·18 cites·15 claims
- 1576US10735104B2Systems and methods for analog electronic polarization control for coherent optical receiversMAXIM INTEGRATED PRODUCTS·Filed 2019·Granted Aug 4, 2020·2 cites·20 claims
- 1674US11385336B2Time of flight sensors and sensing methodsMAXIM INTEGRATED PRODUCTS·Filed 2019·Granted Jul 12, 2022·2 cites·19 claims
- 1774US9231538B1Energy efficient, low distortion amplification apparatusMAXIM INTERGRATED PRODUCTS INC·Filed 2013·Granted Jan 5, 2016·5 cites·8 claims
- 1872US12149280B2Dynamic error quantizer tuning systems and methodsMAXIM INTEGRATED PRODUCTS·Filed 2022·Granted Nov 19, 2024·0 cites·9 claims
- 1972US11621782B2Chromatic dispersion equalizer adaption systems and methodsMAXIM INTEGRATED PRODUCTS·Filed 2022·Granted Apr 4, 2023·0 cites·20 claims
- 2071US10680717B2Systems and methods for polarization control using blind source separationMAXIM INTEGRATED PRODUCTS·Filed 2019·Granted Jun 9, 2020·1 cites·20 claims
- 2171US8340599B2Swept notch ultra wide band (UWB) transmitterRAZZELL CHARLES·Filed 2006·Granted Dec 25, 2012·4 cites·13 claims
- 2270US11804817B2Ultra-wide band frequency offset estimation systems and methods for analog coherent receiversMAXIM INTEGRATED PRODUCTS·Filed 2022·Granted Oct 31, 2023·0 cites·18 claims
- 2368US8331424B2Serialization of multi-band sequence keying for ultra wideband receiver architecture with reduced complexity and power consumptionRAZZELL CHARLES·Filed 2005·Granted Dec 11, 2012·4 cites·11 claims
- 2467US8126096B2System, apparatus, and method for multi-band OFDM systems with receiver antenna selection per sub-bandYANG JUN·Filed 2006·Granted Feb 28, 2012·3 cites·18 claims
- 2566US12164063B2Time of flight sensors and sensing methodsMAXIM INTEGRATED PRODUCTS·Filed 2022·Granted Dec 10, 2024·0 cites·20 claims
- 2666US11843489B2Systems and methods for identifying polarization/quadrature channels in dual- polarization coherent optical transmissionMAXIM INTEGRATED PRODUCTS·Filed 2021·Granted Dec 12, 2023·0 cites·17 claims
- 2766US10777697B1Photovoltaic assemblies capable of communicating an event occurrence, and associated systems and methodsMAXIM INTEGRATED PRODUCTS·Filed 2018·Granted Sep 15, 2020·1 cites·19 claims
- 2866US10187115B2Systems and methods for DC power line communication in a photovoltaic systemMAXIM INTEGRATED PRODUCTS·Filed 2017·Granted Jan 22, 2019·1 cites·11 claims
- 2962US8615621B2Memory managementVAN HOLDER HAN·Filed 2010·Granted Dec 24, 2013·4 cites·10 claims
- 3061US11323184B2Chromatic dispersion equalizer adaption systems and methodsMAXIM INTEGRATED PRODUCTS·Filed 2020·Granted May 3, 2022·0 cites·16 claims
- 3161US8442171B2Digital correction of analog polyphase filtersRAZZELL CHARLES JOHN·Filed 2011·Granted May 14, 2013·2 cites·20 claims
- 3259US7536159B2Automatic gain control using signal and interference power to obtain extended blocking performanceNXP BV·Filed 2003·Granted May 19, 2009·4 cites·11 claims
- 3358US12040922B2Systems and methods for spectral shaping of pre-equalized transmitter signalsANALOG DEVICES INC·Filed 2022·Granted Jul 16, 2024·0 cites·20 claims
- 3458US11990941B2Systems and methods for analog electronic polarization control for coherent optical receiversMAXIM INTEGRATED PRODUCTS·Filed 2020·Granted May 21, 2024·0 cites·12 claims
- 3558US8265180B2OFDM cognitive radio with zero overhead signalling of deleted subcarriers frequenciesRAZZELL CHARLES·Filed 2006·Granted Sep 11, 2012·1 cites·20 claims
- 3658US7809067B2Multi-carrier OFDM UWB communications systemsNXP BV·Filed 2004·Granted Oct 5, 2010·4 cites·12 claims
- 3755US11456898B2Low-power complex analog LMS adaptation systems and methodsMAXIM INTEGRATED PRODUCTS·Filed 2020·Granted Sep 27, 2022·0 cites·20 claims
- 3853US6954486B2Early-late detectionKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Oct 11, 2005·2 cites·4 claims
- 3948US2010281261A1Device and method for near field communications using audio transducersNXP BV·Filed 2008·Application pending·0 cites
- 4047US2010061474A1Fft spreading among selected ofdm sub-carriersNXP BV·Filed 2008·Application pending·0 cites
- 4146US2007202911A1System And Method For Energy Efficient Signal Detection In A Wireless Network DeviceKONINKLIKE PHILIPS ELECTRONICS·Filed 2004·Application pending·0 cites
- 4245US8634492B2Transmitter and receiver for ultra-wideland OFDM signals employing a low-complexity CDMA layer for bandwidth expansionRAZZELL CHARLES·Filed 2005·Granted Jan 21, 2014·0 cites·21 claims
- 4343US2009316667A1Gsm harmonic emission desensitization in 5-ghz wlanNXP BV·Filed 2006·Application pending·0 cites
- 4442US2009055123A1Distance based association for ultra wide band (uwb) wireless personal area network (pan) devicesNXP BV·Filed 2006·Application pending·0 cites
- 4541US8269522B2Active eye opener for current-source driven, high-speed serial linksRAZZELL CHARLES·Filed 2010·Granted Sep 18, 2012·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →