Inventor · disambiguated record
Charles Abraham
Also filed as: ABRAHAM CHARLES · ABRAHAM CHARLES R · ABRAHAM CHARLES RAYMOND · CHEN XUEMIN SHERMAN
207 granted patents·57 pending applications·8,864 citations·filing 1993–2024
99Inventor score
Top patents by PatentIndex Score
264 records- 0199US6922135B2High frequency network multiplexed communications over various lines using multiple modulated carrier frequenciesSATIUS INC·Filed 2004·Granted Jul 26, 2005·302 cites·19 claims
- 0299US6510387B2Correction of a pseudo-range model from a GPS almanacGLOBAL LOCATE INC·Filed 2001·Granted Jan 21, 2003·459 cites·20 claims
- 0399US6453237B1Method and apparatus for locating and providing services to mobile devicesGLOBAL LOCATE INC·Filed 2000·Granted Sep 17, 2002·451 cites·34 claims
- 0499US6014386ASystem and method for high speed communication of video, voice and error-free data over in-wall wiringVIDEOCOM INC·Filed 1996·Granted Jan 11, 2000·291 cites·14 claims
- 0599US5592482AVideo distribution system using in-wall wiringFiled 1994·Granted Jan 7, 1997·410 cites·25 claims
- 0698US7554934B2Method and apparatus for processing location service messages in a satellite position location systemBROADCOM CORP·Filed 2004·Granted Jun 30, 2009·217 cites·19 claims
- 0798US6937187B2Method and apparatus for forming a dynamic model to locate position of a satellite receiverGLOBAL LOCATE INC·Filed 2003·Granted Aug 30, 2005·185 cites·10 claims
- 0898US6853916B2Method and apparatus for forming a pseudo-range modelGLOBAL LOCATE INC·Filed 2002·Granted Feb 8, 2005·235 cites·20 claims
- 0998US6813560B2Method and apparatus for locating mobile receivers using a wide area reference network for propagating ephemerisGLOBAL LOCATE INC·Filed 2003·Granted Nov 2, 2004·186 cites·29 claims
- 1098US6686832B2High frequency network multiplexed communications over various linesSATIUS INC·Filed 2002·Granted Feb 3, 2004·387 cites·13 claims
- 1198US6560534B2Method and apparatus for distributing satellite tracking informationGLOBAL LOCATE INC·Filed 2001·Granted May 6, 2003·330 cites·41 claims
- 1298US6396392B1High frequency network communications over various linesWIRE21 INC·Filed 2000·Granted May 28, 2002·248 cites·54 claims
- 1397US7158883B2Method and apparatus for locating position of a GPS deviceGLOBAL LOCATE INC·Filed 2005·Granted Jan 2, 2007·83 cites·24 claims
- 1497US6975266B2Method and apparatus for locating position of a satellite signal receiverGLOBAL LOCATE INC·Filed 2003·Granted Dec 13, 2005·222 cites·20 claims
- 1597US6542820B2Method and apparatus for generating and distributing satellite tracking informationGLOBAL LOCATE INC·Filed 2001·Granted Apr 1, 2003·228 cites·34 claims
- 1697US6487499B1Method for adjusting a pseudo-range modelGLOBAL LOCATE INC·Filed 2001·Granted Nov 26, 2002·170 cites·4 claims
- 1797US6484097B2Wide area inverse differential GPSGLOBAL LOCATE INC·Filed 2001·Granted Nov 19, 2002·174 cites·20 claims
- 1897US6407987B1Transformer coupler for communication over various linesWIRE21 INC·Filed 1999·Granted Jun 18, 2002·414 cites·23 claims
- 1997US5717685ATransformer coupler for communication over various linesFiled 1995·Granted Feb 10, 1998·227 cites·11 claims
- 2097US5625863AVideo distribution system using in-wall wiringVIDEOCOM INC·Filed 1995·Granted Apr 29, 1997·271 cites·14 claims
- 2197US5559377ATransformer coupler for communication over various linesFiled 1994·Granted Sep 24, 1996·237 cites·10 claims
- 2296US9961618B2Apparatus and method for performing low-power geo-fence operationsAVAGO TECHNOLOGIES GENERAL IP·Filed 2015·Granted May 1, 2018·12 cites·20 claims
- 2396US5510797AProvision of SPS timing signalsTRIMBLE NAVIGATION LTD·Filed 1993·Granted Apr 23, 1996·168 cites·8 claims
- 2495US7400974B2Method and apparatus for locating position of a GPS deviceGLOBAL LOCATE INC·Filed 2006·Granted Jul 15, 2008·39 cites·20 claims
- 2595US7053824B2Method and apparatus for receiving a global positioning system signal using a cellular acquisition signalGLOBAL LOCATE INC·Filed 2001·Granted May 30, 2006·65 cites·16 claims
- 2695US6829535B2Method and apparatus for generating satellite tracking information in a compact formatGLOBAL LOCATE INC·Filed 2003·Granted Dec 7, 2004·119 cites·31 claims
- 2795US6429814B1Method and apparatus for enhancing a global positioning system with terrain modelGLOBAL LOCATE INC·Filed 2001·Granted Aug 6, 2002·147 cites·15 claims
- 2894US7095370B1Method and apparatus for mitigating multipath effects at a satellite signal receiver using a sequential estimation filterGLOBAL LOCATE INC·Filed 2005·Granted Aug 22, 2006·41 cites·16 claims
- 2994US6104707ATransformer coupler for communication over various linesVIDEOCOM INC·Filed 1997·Granted Aug 15, 2000·199 cites·27 claims
- 3094US5861841ACompact GPS receiver/processorTRIMBLE NAVIGATION LTD·Filed 1997·Granted Jan 19, 1999·249 cites·46 claims
- 3193US7010307B2Method and apparatus for compensating an oscillator in a location-enabled wireless deviceGLOBAL LOCATE INC·Filed 2003·Granted Mar 7, 2006·44 cites·13 claims
- 3292US7391317B2Apparatus and method for transmitting digital data over various communication mediaSATIUS INC·Filed 2005·Granted Jun 24, 2008·73 cites·35 claims
- 3392US7155183B2Method and apparatus for adjusting reference oscillator frequency in a mobile wireless deviceGLOBAL LOCATE INC·Filed 2003·Granted Dec 26, 2006·35 cites·19 claims
- 3492US6651000B2Method and apparatus for generating and distributing satellite tracking information in a compact formatGLOBAL LOCATE INC·Filed 2001·Granted Nov 18, 2003·90 cites·33 claims
- 3592US5731786ACompaction of SATPS information for subsequent signal processingTRIMBLE NAVIGATION LTD·Filed 1994·Granted Mar 24, 1998·155 cites·21 claims
- 3691US8977288B2Apparatus and method for performing low-power geo-fence operationsBROADCOM CORP·Filed 2012·Granted Mar 10, 2015·14 cites·20 claims
- 3791US7688260B2Method and apparatus for locating position of a mobile device in an assisted satellite positioning systemGLOBAL LOCATE INC·Filed 2004·Granted Mar 30, 2010·75 cites·22 claims
- 3891US6829534B2Method and apparatus for performing timing synchronizationGLOBAL LOCATE INC·Filed 2003·Granted Dec 7, 2004·80 cites·16 claims
- 3991US6606346B2Method and apparatus for computing signal correlationGLOBAL LOCATE INC·Filed 2001·Granted Aug 12, 2003·101 cites·23 claims
- 4090US8761752B2Method and system for dynamic adjustment of power and frequencies in a femtocell networkBROADCOM CORP·Filed 2013·Granted Jun 24, 2014·7 cites·20 claims
- 4190US6023106APower line circuits and adaptors for coupling carrier frequency current signals between power linesFiled 1997·Granted Feb 8, 2000·88 cites·20 claims
- 4289US8339311B2Method and system for a full GNSS capable multi-standard single chipWALLEY JOHN·Filed 2009·Granted Dec 25, 2012·24 cites·20 claims
- 4389US7714779B2Method and apparatus for providing a global secure user plane location (SUPL) serviceBROADCOM CORP·Filed 2005·Granted May 11, 2010·15 cites·23 claims
- 4489US7548816B2Method and apparatus for generating and securely distributing long-term satellite tracking informationGLOBAL LOCATE INC·Filed 2006·Granted Jun 16, 2009·28 cites·44 claims
- 4589US7239857B2Method and apparatus for compensating an oscillator in a location-enabled wireless deviceGLOBAL LOCATE INC·Filed 2005·Granted Jul 3, 2007·15 cites·17 claims
- 4688US9065908B2Method and system for ensuring user and/or device anonymity for location based services (LBS)BUER MARK·Filed 2010·Granted Jun 23, 2015·9 cites·20 claims
- 4788US5818127ATransmission of FM video signals over various linesVIDEOCOM INC·Filed 1997·Granted Oct 6, 1998·182 cites·45 claims
- 4887US6992617B2Method and apparatus for monitoring the integrity of satellite tracking data used by a remote receiverGLOBAL LOCATE INC·Filed 2003·Granted Jan 31, 2006·50 cites·27 claims
- 4985US8504044B2Method and system for dynamic adjustment of power and frequencies in a femtocell networkERCEG VINKO·Filed 2012·Granted Aug 6, 2013·5 cites·25 claims
- 5085US6795771B2Method and apparatus for correlating a satellite signal with a reference codeGLOBAL LOCATE INC·Filed 2003·Granted Sep 21, 2004·34 cites·21 claims
Showing the top 50 of 264 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →