Inventor · disambiguated record
Leonard N. Schiff
Also filed as: SCHIFF LEONARD · SCHIFF LEONARD N · SCHIFF LEONARD NORMAN
63 granted patents·4 pending applications·2,209 citations·filing 1979–2017
99Inventor score
Top patents by PatentIndex Score
67 records- 0196US6539200B1Method and apparatus for paging a user terminal within the “sweet spot” of a satelliteQUALCOMM INC·Filed 1999·Granted Mar 25, 2003·199 cites·43 claims
- 0296US4630283AFast acquisition burst mode spread spectrum communications system with pilot carrierRCA CORP·Filed 1985·Granted Dec 16, 1986·200 cites·20 claims
- 0396US4577316ASynchronization system for a regenerative subtransponder satellite communication systemRCA CORP·Filed 1984·Granted Mar 18, 1986·142 cites·13 claims
- 0494US9319172B2Interference mitigation techniques for air to ground systemsJALALI AHMAD·Filed 2012·Granted Apr 19, 2016·21 cites·12 claims
- 0594US6714780B1System and method for reducing call dropping rates in a multi-beam communication systemQUALCOMM INC·Filed 2001·Granted Mar 30, 2004·77 cites·20 claims
- 0693US8744344B2Satellite communication system constituted with primary and back-up multi-beam satellitesSCHIFF LEONARD N·Filed 2008·Granted Jun 3, 2014·24 cites·18 claims
- 0793US6208858B1System and method for reducing call dropping rates in a multi-beam communication systemQUALCOMM INC·Filed 1998·Granted Mar 27, 2001·152 cites·20 claims
- 0892US8676192B2High data rate aircraft to ground communication antenna systemJALALI AHMAD·Filed 2011·Granted Mar 18, 2014·22 cites·8 claims
- 0992US7933599B2Techniques for facilitating communication handoffsQUALCOMM INC·Filed 2006·Granted Apr 26, 2011·41 cites·20 claims
- 1092US6005855AMethod and apparatus for providing variable rate data in a communications system using statistical multiplexingQUALCOMM INC·Filed 1997·Granted Dec 21, 1999·185 cites·29 claims
- 1191US7599657B2Reducing service outages in a multibeam satellite systemQUALCOMM INC·Filed 2005·Granted Oct 6, 2009·17 cites·27 claims
- 1291US6339611B1Method and apparatus for cross polarized isolation in a communication systemQUALCOMM INC·Filed 1999·Granted Jan 15, 2002·113 cites·18 claims
- 1390US9848391B2High data rate aircraft to ground communication antenna systemQUALCOMM INC·Filed 2014·Granted Dec 19, 2017·7 cites·14 claims
- 1490US6549780B2Method and apparatus for adjacent service area handoff in communication systemsQUALCOMM INC·Filed 2000·Granted Apr 15, 2003·40 cites·25 claims
- 1587US9295006B2Real-time calibration of an air to ground communication systemJALALI AHMAD·Filed 2011·Granted Mar 22, 2016·7 cites·20 claims
- 1687US6317420B1Feeder link spatial multiplexing in a satellite communication systemQUALCOMM INC·Filed 1999·Granted Nov 13, 2001·94 cites·16 claims
- 1787US4639932AClock rate spread spectrumRCA CORP·Filed 1985·Granted Jan 27, 1987·80 cites·10 claims
- 1886US9571180B2Unmanned aerial vehicle (UAV) beam forming and pointing toward ground coverage area cells for broadband accessUBIQOMM LLC·Filed 2014·Granted Feb 14, 2017·6 cites·18 claims
- 1986US7596354B2Optimizing polarization of forward linkQUALCOMM INC·Filed 2005·Granted Sep 29, 2009·12 cites·46 claims
- 2085US9882630B2Overlaying an air to ground communication system on spectrum assigned to satellite systemsJALALI AHMAD·Filed 2011·Granted Jan 30, 2018·6 cites·42 claims
- 2184US10181893B2Unmanned aerial vehicle (UAV) beam forming and pointing toward ground coverage area cells for broadband accessBRIDGEWEST FINANCE LLC·Filed 2017·Granted Jan 15, 2019·3 cites·8 claims
- 2283US6233456B1Method and apparatus for adjacent coverage area handoff in communication systemsQUALCOMM INC·Filed 1996·Granted May 15, 2001·66 cites·8 claims
- 2383US4636586ASpeakerphone with adaptive cancellation of room echoesRCA CORP·Filed 1985·Granted Jan 13, 1987·67 cites·10 claims
- 2482US9866312B2Beam forming and pointing in a network of unmanned aerial vehicles (UAVs) for broadband accessUBIQOMM LLC·Filed 2016·Granted Jan 9, 2018·6 cites·20 claims
- 2580US4617674ASynchronizing system for spread spectrum transmissions between small earth stations by satellite via an intermediate hop to a large earth stationRCA CORP·Filed 1983·Granted Oct 14, 1986·52 cites·6 claims
- 2678US9800320B2Beam forming and pointing in a network of unmanned aerial vehicles (UAVs) for broadband accessUBIQOMM LLC·Filed 2016·Granted Oct 24, 2017·4 cites·21 claims
- 2776US6028884AMethod and apparatus for measuring nonlinear effects in a communication systemQUALCOMM INC·Filed 1998·Granted Feb 22, 2000·56 cites·24 claims
- 2875US7379758B2Satellite communication system constituted with primary and back-up multi-beam satellitesQUALCOMM INC·Filed 2003·Granted May 27, 2008·12 cites·27 claims
- 2975US6449463B1Variable loop gain in double loop power control systemsQUALCOMM INC·Filed 1998·Granted Sep 10, 2002·64 cites·20 claims
- 3075US4615026ADigital FIR filters with enhanced tap weight resolutionRCA CORP·Filed 1984·Granted Sep 30, 1986·18 cites·6 claims
- 3175US4594607ADemodulator for sampled chrominance signals including a Nyquist filter for recovering wideband I color difference signalsRCA CORP·Filed 1984·Granted Jun 10, 1986·22 cites·8 claims
- 3274US8358971B2Satellite-based programmable allocation of bandwidth for forward and return linksQUALCOMM INC·Filed 2003·Granted Jan 22, 2013·14 cites·19 claims
- 3373US6298242B1Method and apparatus for reducing frame error rate through signal power adjustmentQUALCOMM INC·Filed 1999·Granted Oct 2, 2001·67 cites·35 claims
- 3472US9712228B2Beam forming and pointing in a network of unmanned aerial vehicles (UAVs) for broadband accessUBIQOMM LLC·Filed 2015·Granted Jul 18, 2017·3 cites·20 claims
- 3572US4745474ATwo resolution level DPCM systemGEN ELECTRIC·Filed 1987·Granted May 17, 1988·24 cites·22 claims
- 3672US4434440AFM/TV Transmission systemRCA CORP·Filed 1981·Granted Feb 28, 1984·20 cites·7 claims
- 3771US4221934ACompandor for group of FDM signalsRCA CORP·Filed 1979·Granted Sep 9, 1980·17 cites·9 claims
- 3870US6424831B1Apparatus and method for paging a user terminal in a satellite communication systemQUALCOMM INC·Filed 1999·Granted Jul 23, 2002·40 cites·18 claims
- 3970US4587661AApparatus for synchronizing spread spectrum transmissions from small earth stations used for satellite transmissionRCA CORP·Filed 1983·Granted May 6, 1986·28 cites·5 claims
- 4069US7450541B2Access channel with constrained arrival timesQUALCOMM INC·Filed 2004·Granted Nov 11, 2008·12 cites·39 claims
- 4169US4616252ASampled color difference signal processing system having a quadrature distortion reduction differentiatorRCA CORP·Filed 1984·Granted Oct 7, 1986·18 cites·7 claims
- 4268US7639646B2Satellite diversity system, apparatus and methodQUALCOMM INC·Filed 2004·Granted Dec 29, 2009·8 cites·27 claims
- 4367US7933215B2Synchronization on reverse link of mobile mode communications systemsQUALCOMM INC·Filed 2004·Granted Apr 26, 2011·9 cites·29 claims
- 4467US7525934B2Mixed reuse of feeder link and user link bandwidthQUALCOMM INC·Filed 2004·Granted Apr 28, 2009·9 cites·20 claims
- 4567US4933765AEnhanced TV system using transmitted error signalsGEN ELECTRIC·Filed 1988·Granted Jun 12, 1990·20 cites·16 claims
- 4666US8121536B2Noise compensation in satellite communicationsSCHIFF LEONARD N·Filed 2003·Granted Feb 21, 2012·9 cites·44 claims
- 4765US8107436B2Satellite diversity system, apparatus and methodSCHIFF LEONARD N·Filed 2009·Granted Jan 31, 2012·2 cites·27 claims
- 4863US7333469B2Method for deep pagingQUALCOMM INC·Filed 2003·Granted Feb 19, 2008·4 cites·24 claims
- 4961US7633895B2Orthogonal code division multiple access on return link of satellite linksQUALCOMM INC·Filed 2003·Granted Dec 15, 2009·6 cites·21 claims
- 5061US4912773ACommunications system utilizing a pilot signal and a modulated signalGEN ELECTRIC·Filed 1982·Granted Mar 27, 1990·19 cites·16 claims
Showing the top 50 of 67 patent records by PatentIndex Score.
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