Inventor · disambiguated record
Peter James Duffett-Smith
Also filed as: DUFFETT-SMITH PETER · DUFFETT-SMITH PETER J · DUFFETT-SMITH PETER JAMES
38 granted patents·12 pending applications·1,682 citations·filing 1988–2025
98Inventor score
Files withFOCAL POINT POSITIONING LTD24CAMBRIDGE POSITIONING SYS LTD17DUFFETT-SMITH PETER JAMES5FECAL POINT POSITIONING LTD1LYNXVALE CRIL PARTNERSHIP1
Top patents by PatentIndex Score
50 records- 0197US10321430B2Method, apparatus, computer program, chip set, or data structure for correlating a digital signal and a correlation codeFOCAL POINT POSITIONING LTD·Filed 2017·Granted Jun 11, 2019·32 cites·19 claims
- 0296US10816672B2Method and system for correcting the frequency or phase of a local signal generated using a local oscillatorFOCAL POINT POSITIONING LTD·Filed 2017·Granted Oct 27, 2020·25 cites·20 claims
- 0396US5045861ANavigation and tracking systemLYNXVALE CRIL PARTNERSHIP·Filed 1988·Granted Sep 3, 1991·259 cites·20 claims
- 0495US11474258B2System for determining a physical metric such as positionFOCAL POINT POSITIONING LTD·Filed 2020·Granted Oct 18, 2022·4 cites·14 claims
- 0594US8253628B2Transfer of calibrated time information in a mobile terminalDUFFETT-SMITH PETER JAMES·Filed 2010·Granted Aug 28, 2012·23 cites·22 claims
- 0694US7852267B2Transfer of calibrated time information in a mobile terminalCAMBRIDGE POSITIONING SYS LTD·Filed 2006·Granted Dec 14, 2010·31 cites·8 claims
- 0793US7652622B2Transfer of position information of mobile terminalCAMBRIDGE POSITIONING SYS LTD·Filed 2006·Granted Jan 26, 2010·53 cites·21 claims
- 0893US6529165B1Radio positioning systemsCAMBRIDGE POSITIONING SYS LTD·Filed 2000·Granted Mar 4, 2003·128 cites·12 claims
- 0992US7359719B1Radio positioning systemsCAMBRIDGE POSITIONING SYS LTD·Filed 2000·Granted Apr 15, 2008·126 cites·15 claims
- 1092US6094168APosition determining systemCAMBRIDGE POSITIONING SYS LTD·Filed 1996·Granted Jul 25, 2000·264 cites·18 claims
- 1190US11035673B2Method and system for combining sensor dataFOCAL POINT POSITIONING LTD·Filed 2018·Granted Jun 15, 2021·8 cites·54 claims
- 1288US8472971B2Method and apparatus for determining whether a mobile terminal has moved outside a given localeROWE ROBERT WILLEM·Filed 2006·Granted Jun 25, 2013·24 cites·23 claims
- 1388US6937866B2Positioning systems and methodsCAMBRIDGE POSITIONING SYS LTD·Filed 2001·Granted Aug 30, 2005·82 cites·43 claims
- 1487US7639179B2Transfer of position information to a mobile terminalCAMBRIDGE POSITIONING SYS LTD·Filed 2007·Granted Dec 29, 2009·25 cites·24 claims
- 1587US6342854B1Position determining systemCAMBRIDGE POSITIONING SYS LTD·Filed 2000·Granted Jan 29, 2002·86 cites·19 claims
- 1686US11137500B2Method, apparatus, computer program, chip set, or data structure for correlating a digital signal and a correlation codeFOCAL POINT POSITIONING LTD·Filed 2017·Granted Oct 5, 2021·5 cites·8 claims
- 1786US8255160B2Integrated mobile terminal navigationDUFFETT-SMITH PETER JAMES·Filed 2007·Granted Aug 28, 2012·27 cites·28 claims
- 1886US7228228B2Tag trackingSAGENTIA LTD·Filed 2001·Granted Jun 5, 2007·85 cites·43 claims
- 1985US8279116B2Processing received satellite radio signalsDUFFETT-SMITH PETER JAMES·Filed 2009·Granted Oct 2, 2012·24 cites·11 claims
- 2084US8013788B2Assistance to a mobile SPS receiverCAMBRIDGE POSITIONING SYS LTD·Filed 2006·Granted Sep 6, 2011·21 cites·30 claims
- 2184US7978136B2Associating a universal time with received signalCAMBRIDGE POSITIONING SYS LTD·Filed 2007·Granted Jul 12, 2011·23 cites·23 claims
- 2283US6894644B2Radio positioning systemsCAMBRIDGE POSITIONING SYS LTD·Filed 2002·Granted May 17, 2005·62 cites·33 claims
- 2381US7315745B2Radio positioning systemsCAMBRIDGE POSITIONING SYS LTD·Filed 2003·Granted Jan 1, 2008·53 cites·21 claims
- 2480US12429602B2System for determining a physical metric such as positionFOCAL POINT POSITIONING LTD·Filed 2023·Granted Sep 30, 2025·0 cites·20 claims
- 2580US8103294B2Determining the change in time at a mobile terminalDUFFETT-SMITH PETER JAMES·Filed 2008·Granted Jan 24, 2012·19 cites·13 claims
- 2680US2024027194A1Method and system for combining sensor dataFOCAL POINT POSITIONING LTD·Filed 2023·Application pending·0 cites
- 2778US12429601B2System for determining a physical metric such as positionFOCAL POINT POSITIONING LTD·Filed 2022·Granted Sep 30, 2025·0 cites·16 claims
- 2877US7260407B2Radio location system measurement unitCAMBRIDGE POSITIONING SYS LTD·Filed 2002·Granted Aug 21, 2007·43 cites·13 claims
- 2977US2025283722A1Method of estimating a metric of interest related to the motion of a bodyFOCAL POINT POSITIONING LTD·Filed 2025·Application pending·0 cites
- 3075US7508883B2Radio positioning systemsCAMBRIDGE POSITIONING SYS LTD·Filed 2003·Granted Mar 24, 2009·38 cites·30 claims
- 3172US11815355B2Method and system for combining sensor dataFOCAL POINT POSITIONING LTD·Filed 2021·Granted Nov 14, 2023·0 cites·20 claims
- 3270US2025293430A1Method and apparatus for processing radio signalsFOCAL POINT POSITIONING LTD·Filed 2025·Application pending·0 cites
- 3368US12022278B2Method and apparatus for providing selective privacy in a tracking systemFOCAL POINT POSITIONING LTD·Filed 2023·Granted Jun 25, 2024·0 cites·15 claims
- 3467US12313409B2Method of estimating a metric of interest related to the motion of a bodyFOCAL POINT POSITIONING LTD·Filed 2021·Granted May 27, 2025·0 cites·41 claims
- 3565US12436297B2Method, system and computer program product for performing correlation in a positioning systemFOCAL POINT POSITIONING LTD·Filed 2022·Granted Oct 7, 2025·0 cites·26 claims
- 3664US5838279ANavigation and tracking system for shielded spacesCAMBRIDGE POSITIONING SYS LTD·Filed 1994·Granted Nov 17, 1998·47 cites·19 claims
- 3763US8050687B2Location systems and methodsCAMBRIDGE POSITIONING SYS LTD·Filed 2003·Granted Nov 1, 2011·22 cites·20 claims
- 3862US2024230823A9Method, apparatus and system for performing position location using cellular signalsFOCAL POINT POSITIONING LTD·Filed 2023·Application pending·0 cites
- 3962US2024103118A1Method and apparatus that uses radio transmissions for surface mappingFOCAL POINT POSITIONING LTD·Filed 2023·Application pending·0 cites
- 4061US12388497B2Method and apparatus for performing direction division multiple accessFOCAL POINT POSITIONING LTD·Filed 2023·Granted Aug 12, 2025·0 cites·14 claims
- 4161US2024019527A1Method and apparatus that uses a transmission from a single transmitter for receiver positioningFOCAL POINT POSITIONING LTD·Filed 2023·Application pending·0 cites
- 4261US2024007861A1Method and apparatus for providing signal intelligence and securityFOCAL POINT POSITIONING LTD·Filed 2023·Application pending·0 cites
- 4361US2024019584A1Method and apparatus for performing motion compensated signal processingFOCAL POINT POSITIONING LTD·Filed 2023·Application pending·0 cites
- 4461US2024045077A1Method and apparatus for determining a frequency related parameter of a frequency sourceFECAL POINT POSITIONING LTD·Filed 2023·Application pending·0 cites
- 4560US7593736B1Positioning system for digital telephone networksCAMBRIDGE POSITIONING SYS LTD·Filed 1998·Granted Sep 22, 2009·43 cites·100 claims
- 4658US2024007993A1Method and apparatus for locating emitters in a cellular networkFOCAL POINT POSITIONING LTD·Filed 2023·Application pending·0 cites
- 4756US12438594B2Method and apparatus for improving co-channel operation of independent radio systemsFOCAL POINT POSITIONING LTD·Filed 2023·Granted Oct 7, 2025·0 cites·20 claims
- 4852US2024014549A1Method and apparatus for processing radio signalsFOCAL POINT POSITIONING LTD·Filed 2023·Application pending·0 cites
- 4945US2024159912A1Method and apparatus for determining a frequency related parameter of a frequency source using predictive controlFOCAL POINT POSITIONING LTD·Filed 2023·Application pending·0 cites
- 5041US8730105B2Finding the position of a mobile terminalDUFFETT-SMITH PETER JAMES·Filed 2009·Granted May 20, 2014·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →