Inventor · disambiguated record
Leonard Schuchman
Also filed as: SCHUCHMAN LEONARD
26 granted patents·3,686 citations·filing 1990–2007
98Inventor score
Top patents by PatentIndex Score
26 records- 0197US5422813ANo-outage GPS/commercial RF positioning systemSTANFORD TELECOMM INC·Filed 1993·Granted Jun 6, 1995·385 cites·7 claims
- 0296US5640453AUniversal interactive set-top controller for downloading and playback of information and entertainment servicesSTANFORD TELECOMM INC·Filed 1994·Granted Jun 17, 1997·261 cites·4 claims
- 0396US5604765APosition enhanced communication system including system for embedding CDMA navigation beacons under the communications signals of a wireless communication systemSTANFORD TELECOMM INC·Filed 1994·Granted Feb 18, 1997·223 cites·8 claims
- 0496US5365450AHybrid GPS/data line unit for rapid, precise, and robust position determinationSTANFORD TELECOMM INC·Filed 1992·Granted Nov 15, 1994·514 cites·11 claims
- 0595US6226529B1System for providing a simultaneous data and voice channel within a single channel of a portable cellular telephone to provide position-enhanced cellular services (PECS)ITT MFG ENTERPRISES INC·Filed 1994·Granted May 1, 2001·373 cites·10 claims
- 0695US5726893ACellular telephone with voice-in-data modemSTANFORD TELECOMM INC·Filed 1994·Granted Mar 10, 1998·294 cites·6 claims
- 0793US6111538ACellular positioning system (CPS)STANFORD TELECOMM INC·Filed 1995·Granted Aug 29, 2000·168 cites·6 claims
- 0893US5283780ADigital audio broadcasting systemSTANFORD TELECOMM INC·Filed 1990·Granted Feb 1, 1994·246 cites·14 claims
- 0991US7876259B2Automatic dependent surveillance system secure ADS-SSCHUCHMAN LEONARD·Filed 2007·Granted Jan 25, 2011·54 cites·26 claims
- 1090USRE38808ECellular positioning system (CPS)ITT MFG ENTERPRISES INC·Filed 2002·Granted Oct 4, 2005·64 cites·24 claims
- 1190US5459469AAir traffic surveillance and communication systemSTANFORD TELECOMM INC·Filed 1994·Granted Oct 17, 1995·171 cites·9 claims
- 1289US6148219APositioning system for CDMA/PCS communications systemITT MFG ENTERPRISES INC·Filed 1998·Granted Nov 14, 2000·151 cites·10 claims
- 1382US6049548AMulti-access CS-P/CD-E system and protocols on satellite channels applicable to a group of mobile users in close proximitySTANFORD TELECOMM INC·Filed 1997·Granted Apr 11, 2000·70 cites·9 claims
- 1479US6850734B1Position enhanced communication system including system for embedding CDMA navigation beacons under the communications signals of a wireless communication systemITT MFG ENTERPRISES INC·Filed 2000·Granted Feb 1, 2005·26 cites·1 claims
- 1579US5701328AChirped spread spectrum positioning systemSTANFORD TELECOMM INC·Filed 1995·Granted Dec 23, 1997·110 cites·7 claims
- 1678US5638399AMulti-beam satellite communication system with user terminal frequencies having transceivers using the same set of frequency hoppingSTANFORD TELECOMM INC·Filed 1994·Granted Jun 10, 1997·59 cites·16 claims
- 1775US6148195APhase agile antenna for use in position determinationITT MFG ENTERPRISES INC·Filed 1998·Granted Nov 14, 2000·50 cites·7 claims
- 1873US6538601B2Hybrid system for position determination by a mobile communications terminalITT MFG ENTERPRISES INC·Filed 2001·Granted Mar 25, 2003·30 cites·27 claims
- 1973US6169484B1Personal location systemITT MFG ENTERPRISES INC·Filed 1999·Granted Jan 2, 2001·132 cites·2 claims
- 2071US5798726AAir traffic surveillance and communication systemSTANFORD TELECOMM INC·Filed 1995·Granted Aug 25, 1998·105 cites·8 claims
- 2164US6160837AMethod of avoiding near-far interference problems in an array of navigation signal beacons having selected CDMA or GPS-like navigation signalsITT MFG ENTERPRISES INC·Filed 1996·Granted Dec 12, 2000·46 cites·1 claims
- 2263US5912917ADigital broadcast systemFiled 1993·Granted Jun 15, 1999·43 cites·26 claims
- 2359US5577066ACharge-coupled-device based data-in-voice modemSTANFORD TELECOMM INC·Filed 1994·Granted Nov 19, 1996·28 cites·2 claims
- 2458US6334061B1Integrated vehicle applique unit for the position enhanced cellular systemITT MFG ENTERPRISES INC·Filed 1994·Granted Dec 25, 2001·27 cites·5 claims
- 2555US5351270APortable cellular telephone using spread spectrum communication with mobile transceiverSTANFORD TELECOMM INC·Filed 1993·Granted Sep 27, 1994·45 cites·6 claims
- 2649US5598472ACharge-coupled-device based all-analog wave form scrambling with applications in audio, video, video-on-demand, and TV systemsSTANFORD TELECOMM INC·Filed 1994·Granted Jan 28, 1997·11 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Leonard Schuchman files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →