Inventor · disambiguated record
Douglas Neal Rowitch
Also filed as: ROWITCH DOUGLAS · ROWITCH DOUGLAS N · ROWITCH DOUGLAS NEAL
80 granted patents·15 pending applications·1,462 citations·filing 1998–2023
99Inventor score
Top patents by PatentIndex Score
95 records- 0198US6861980B1Data messaging efficiency for an assisted wireless position determination systemQUALCOMM INC·Filed 2004·Granted Mar 1, 2005·272 cites·31 claims
- 0296US6304991B1Turbo code interleaver using linear congruential sequenceQUALCOMM INC·Filed 1998·Granted Oct 16, 2001·121 cites·31 claims
- 0395US8139685B2Systems, methods, and apparatus for frequency controlSIMIC EMILIJA·Filed 2006·Granted Mar 20, 2012·60 cites·48 claims
- 0495US7764726B2Systems, methods, and apparatus for jammer rejectionQUALOMM INC·Filed 2005·Granted Jul 27, 2010·50 cites·28 claims
- 0595US6903684B1Method and apparatus for optimizing GPS-based position location in presence of time varying frequency errorQUALCOMM INC·Filed 2003·Granted Jun 7, 2005·165 cites·10 claims
- 0694US8390512B2On demand positioningISCHE MARC A·Filed 2010·Granted Mar 5, 2013·28 cites·38 claims
- 0793US9544923B2System and/or method of locating a portable service access transceiverQUALCOMM INC·Filed 2016·Granted Jan 10, 2017·7 cites·30 claims
- 0892US6628702B1Method and apparatus for demodulating signals processed in a transmit diversity modeQUALCOMM INC·Filed 2000·Granted Sep 30, 2003·50 cites·25 claims
- 0991US8531332B2Anti-spoofing detection systemGUM ARNOLD J·Filed 2010·Granted Sep 10, 2013·29 cites·19 claims
- 1089US9335419B2Wireless network hybrid positioningMOEGLEIN MARK·Filed 2012·Granted May 10, 2016·7 cites·17 claims
- 1188US9020523B2Position estimating for a mobile deviceMOEGLEIN MARK LEO·Filed 2011·Granted Apr 28, 2015·15 cites·54 claims
- 1287US9549386B2Techniques for reducing scans for indoor position determinationQUALCOMM INC·Filed 2015·Granted Jan 17, 2017·5 cites·16 claims
- 1387US8730100B2On demand positioningQUALCOMM INC·Filed 2013·Granted May 20, 2014·8 cites·40 claims
- 1487US7505757B2Location based service (LBS) system, method and apparatus for triggering of mobile station LBS applicationsQUALCOMM INC·Filed 2004·Granted Mar 17, 2009·45 cites·12 claims
- 1587US7359716B2Location based service (LBS) system, method and apparatus for authorization of mobile station LBS applicationsROWITCH DOUGLAS·Filed 2004·Granted Apr 15, 2008·74 cites·23 claims
- 1686US10393883B2On demand positioningQUALCOMM INC·Filed 2015·Granted Aug 27, 2019·4 cites·16 claims
- 1786US9282433B2System and/or method of locating a portable service access transceiverQUALCOMM INC·Filed 2012·Granted Mar 8, 2016·6 cites·21 claims
- 1886US9274231B2Demand positioningQUALCOMM INC·Filed 2014·Granted Mar 1, 2016·7 cites·16 claims
- 1986US8358243B2Methods and apparatuses for requesting/providing sensitivity assistance information associated with various satellite positioning systems in wireless communication networksQUALCOMM INC·Filed 2009·Granted Jan 22, 2013·22 cites·58 claims
- 2086US7039418B2Position determination in a wireless communication system with detection and compensation for repeatersQUALCOMM INC·Filed 2001·Granted May 2, 2006·64 cites·45 claims
- 2186US6637000B2Turbo code interleaver using linear congruential sequencesQUALCOMM INC·Filed 2001·Granted Oct 21, 2003·31 cites·10 claims
- 2285US8971913B2Method and apparatus for wireless network hybrid positioningMOEGLEIN MARK·Filed 2004·Granted Mar 3, 2015·43 cites·48 claims
- 2384US8704707B2Position determination using measurements from past and present epochsRILEY WYATT THOMAS·Filed 2010·Granted Apr 22, 2014·9 cites·38 claims
- 2484US7859453B2Multiple radio device having adaptable mode navigation radioQUALCOMM INC·Filed 2008·Granted Dec 28, 2010·20 cites·52 claims
- 2584US7016688B2Forward link repeater delay watermarking systemQUALCOMM INC·Filed 2003·Granted Mar 21, 2006·39 cites·10 claims
- 2683US12332365B2On demand positioningQUALCOMM INC·Filed 2023·Granted Jun 17, 2025·0 cites·23 claims
- 2783US7450064B2Methods and systems for deriving seed position of a subscriber station in support of unassisted GPS-type position determination in a wireless communication systemQUALCOMM INC·Filed 2005·Granted Nov 11, 2008·10 cites·28 claims
- 2880US9037155B2Time of arrival (TOA) estimation for positioning in a wireless communication networkFISCHER SVEN·Filed 2009·Granted May 19, 2015·15 cites·35 claims
- 2980US8843181B2Sensor uses in communication systemsSEIBERT CRISTINA A·Filed 2009·Granted Sep 23, 2014·9 cites·8 claims
- 3079US9494691B2Anti-spoofing detection systemQUALCOMM INC·Filed 2013·Granted Nov 15, 2016·5 cites·41 claims
- 3177US12210105B2On demand positioningQUALCOMM INC·Filed 2021·Granted Jan 28, 2025·0 cites·26 claims
- 3277US8437772B2Transmitter position integrity checkingMOEGLEIN MARK LEO·Filed 2009·Granted May 7, 2013·10 cites·56 claims
- 3376US9244146B2Positioning beacon transmitterQUALCOMM INC·Filed 2013·Granted Jan 26, 2016·5 cites·25 claims
- 3476US7792222B2Using soft bit decisions to improve DPSK demodulation of SPS dataQUALCOMM INC·Filed 2006·Granted Sep 7, 2010·7 cites·58 claims
- 3575US11226417B2On demand positioningQUALCOMM INC·Filed 2018·Granted Jan 18, 2022·1 cites·25 claims
- 3674US10247828B2Position determination using measurements from past and present epochsQUALCOMM INC·Filed 2014·Granted Apr 2, 2019·4 cites·23 claims
- 3774US8478228B2Mobile receiver with location services capabilityROWITCH DOUGLAS NEAL·Filed 2008·Granted Jul 2, 2013·5 cites·22 claims
- 3874US8044853B2Navigation receiverQUALCOMM INC·Filed 2007·Granted Oct 25, 2011·9 cites·24 claims
- 3974US6873910B2Procedure for searching for position determination signals using a plurality of search modesQUALCOMM INC·Filed 2002·Granted Mar 29, 2005·28 cites·21 claims
- 4074US6825805B2Search procedure for position determination systemQUALCOMM INC·Filed 2002·Granted Nov 30, 2004·31 cites·10 claims
- 4174US2021080596A1Method and apparatus for wireless network hybrid positioningQUALCOMM INC·Filed 2020·Application pending·0 cites
- 4273US8130145B2Receive diversity in GNSS receiversSIMIC EMILIJA M·Filed 2009·Granted Mar 6, 2012·4 cites·44 claims
- 4373US7096132B2Procedure for estimating a parameter of a local maxima or minima of a functionQUALCOMM INC·Filed 2003·Granted Aug 22, 2006·13 cites·31 claims
- 4473US6788663B2System, method, and apparatus for generating a timing signalQUALCOMM INC·Filed 2002·Granted Sep 7, 2004·29 cites·6 claims
- 4573US2021088674A1Method and apparatus for wireless network hybrid positioningQUALCOMM INC·Filed 2020·Application pending·0 cites
- 4671US8306093B2Method and apparatus for multipath mitigationCHEN SHIOU-HUNG·Filed 2008·Granted Nov 6, 2012·5 cites·37 claims
- 4771US8299960B2Methods and systems for deriving seed position of a subscriber station in support of unassisted GPS-type position determination in a wireless communication systemROWITCH DOUGLAS NEAL·Filed 2008·Granted Oct 30, 2012·4 cites·21 claims
- 4870US8106821B2Methods and apparatuses for use with mode-switchable navigation radioFARMER DOMINIC GERARD·Filed 2009·Granted Jan 31, 2012·6 cites·68 claims
- 4969US8994587B2Compressed sensing for navigation dataBOLOTSKI JOSEPHINE A·Filed 2010·Granted Mar 31, 2015·4 cites·42 claims
- 5069US8736490B2Receive diversity in GNSS receiversSIMIC EMILIJA M·Filed 2012·Granted May 27, 2014·3 cites·40 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →