Inventor · disambiguated record
Robert E. Stengel
Also filed as: STENGEL ROBERT · STENGEL ROBERT E
83 granted patents·10 pending applications·3,835 citations·filing 1982–2015
99Inventor score
Files withMOTOROLA INC78MOTOROLA SOLUTIONS INC4NAGARAJ GEETHA B2STENGEL ROBERT E2ALBERTH JR WILLIAM1
Top patents by PatentIndex Score
93 records- 0198US5451914AMulti-layer radio frequency transformerMOTOROLA INC·Filed 1994·Granted Sep 19, 1995·195 cites·10 claims
- 0298US5442317ASwitching regulator and amplifier systemMOTOROLA INC·Filed 1995·Granted Aug 15, 1995·189 cites·18 claims
- 0397US6262629B1High efficiency power amplifier having reduced output matching networks for use in portable devicesMOTOROLA INC·Filed 1999·Granted Jul 17, 2001·179 cites·9 claims
- 0497US6008102AMethod of forming a three-dimensional integrated inductorMOTOROLA INC·Filed 1998·Granted Dec 28, 1999·382 cites·9 claims
- 0597US5541554AMulti-mode power amplifierMOTOROLA INC·Filed 1995·Granted Jul 30, 1996·208 cites·14 claims
- 0696US5901346AMethod and apparatus utilizing a compensated multiple output signal sourceMOTOROLA INC·Filed 1996·Granted May 4, 1999·167 cites·25 claims
- 0796US5265270AMethod and apparatus for providing power conservation in a communication systemMOTOROLA INC·Filed 1991·Granted Nov 23, 1993·155 cites·26 claims
- 0895US8427205B1Method and apparatus for fast frequency locking in a closed loop based frequency synthesizerNAGARAJ GEETHA B·Filed 2011·Granted Apr 23, 2013·29 cites·20 claims
- 0995US6794913B1Delay locked loop with digital to phase converter compensationMOTOROLA INC·Filed 2003·Granted Sep 21, 2004·73 cites·27 claims
- 1095US6356149B1Tunable inductor circuit, phase tuning circuit and applications thereofMOTOROLA INC·Filed 2000·Granted Mar 12, 2002·94 cites·13 claims
- 1195US5055816AMethod for fabricating an electronic deviceMOTOROLA INC·Filed 1990·Granted Oct 8, 1991·106 cites·4 claims
- 1294US5892395AMethod and apparatus for efficient signal power amplificationMOTOROLA INC·Filed 1997·Granted Apr 6, 1999·126 cites·16 claims
- 1394US4494100APlanar inductorsMOTOROLA INC·Filed 1982·Granted Jan 15, 1985·286 cites·8 claims
- 1493US6462360B1Integrated gallium arsenide communications systemsMOTOROLA INC·Filed 2001·Granted Oct 8, 2002·72 cites·40 claims
- 1590US7773713B2Clock data recovery systems and methods for direct digital synthesizersMOTOROLA INC·Filed 2006·Granted Aug 10, 2010·22 cites·13 claims
- 1689US5898912ADirect current (DC) offset compensation method and apparatusMOTOROLA INC·Filed 1996·Granted Apr 27, 1999·198 cites·5 claims
- 1789US5283462AIntegrated distributed inductive-capacitive networkMOTOROLA INC·Filed 1991·Granted Feb 1, 1994·75 cites·4 claims
- 1888US5218284AIntegral battery charging and supply regulation circuitMOTOROLA INC·Filed 1990·Granted Jun 8, 1993·77 cites·15 claims
- 1986US9385763B1Method and apparatus for in-channel interference cancellationMOTOROLA SOLUTIONS INC·Filed 2015·Granted Jul 5, 2016·6 cites·4 claims
- 2085US7251468B2Dynamically matched mixer system with improved in-phase and quadrature (I/Q) balance and second order intercept point (IP2) performanceMOTOROLA INC·Filed 2004·Granted Jul 31, 2007·25 cites·20 claims
- 2185US5648766ACircuit with supply voltage optimizerMOTOROLA INC·Filed 1994·Granted Jul 15, 1997·47 cites·6 claims
- 2285US5382915APulsewidth-modulated amplifier having analog modeMOTOROLA INC·Filed 1993·Granted Jan 17, 1995·39 cites·21 claims
- 2385US5166857AElectronically tunable capacitor switchMOTOROLA INC·Filed 1991·Granted Nov 24, 1992·62 cites·22 claims
- 2483US9564880B2Systems and methods for generating injection-locked, frequency-multiplied output signalsMOTOROLA SOLUTIONS INC·Filed 2014·Granted Feb 7, 2017·6 cites·14 claims
- 2583US7409416B2Digital-to-time converter using cycle selection windowingMOTOROLA INC·Filed 2006·Granted Aug 5, 2008·12 cites·37 claims
- 2683US6959397B2Programmable skew clock signal generator selecting one of a plurality of delayed reference clock signals in response to a phase accumulator outputMOTOROLA INC·Filed 2003·Granted Oct 25, 2005·32 cites·25 claims
- 2782US8339295B2Method and system for managing digital to time conversionNAGARAJ GEETHA B·Filed 2007·Granted Dec 25, 2012·13 cites·19 claims
- 2881US7409012B2Modulator and signaling methodMOTOROLA INC·Filed 2002·Granted Aug 5, 2008·35 cites·5 claims
- 2981US6998928B2Digital pulse width modulationMOTOROLA INC·Filed 2003·Granted Feb 14, 2006·27 cites·31 claims
- 3081US6542270B2Interference-robust coded-modulation scheme for optical communications and method for modulating illumination for optical communicationsMOTOROLA INC·Filed 2000·Granted Apr 1, 2003·46 cites·40 claims
- 3179US5506493ASwitching regulator and amplifier systemMOTOROLA INC·Filed 1995·Granted Apr 9, 1996·61 cites·7 claims
- 3278US6867736B2Multi-band antennasMOTOROLA INC·Filed 2002·Granted Mar 15, 2005·30 cites·12 claims
- 3376US7471156B2Amplifier containing programmable impedance for harmonic terminationMOTOROLA INC·Filed 2006·Granted Dec 30, 2008·10 cites·16 claims
- 3476US6667659B2High efficiency amplifierMOTOROLA INC·Filed 2002·Granted Dec 23, 2003·22 cites·59 claims
- 3576US6118322AMethod and apparatus for reducing even order distortion in differential circuitsMOTOROLA INC·Filed 1998·Granted Sep 12, 2000·36 cites·14 claims
- 3676US5204970ACommunication system capable of adjusting transmit power of a subscriber unitMOTOROLA INC·Filed 1991·Granted Apr 20, 1993·100 cites·3 claims
- 3775US8154329B2Device and method for phase compensationECKLUND LAWRENCE M·Filed 2009·Granted Apr 10, 2012·10 cites·20 claims
- 3875US7315215B2Direct digital synthesizer with variable reference for improved spurious performanceMOTOROLA INC·Filed 2006·Granted Jan 1, 2008·7 cites·22 claims
- 3975US7154978B2Cascaded delay locked loop circuitMOTOROLA INC·Filed 2001·Granted Dec 26, 2006·23 cites·38 claims
- 4075US5109530AReceiver with battery saverMOTOROLA INC·Filed 1990·Granted Apr 28, 1992·95 cites·12 claims
- 4172US7319870B2Method for subscribing to a wireless serviceMOTOROLA INC·Filed 2001·Granted Jan 15, 2008·17 cites·5 claims
- 4272US6539344B1Method and apparatus for extracting parameters for an electrical structureMOTOROLA INC·Filed 2000·Granted Mar 25, 2003·15 cites·13 claims
- 4371US6674329B1Distributed RF amplifier with filtered dummy loadMOTOROLA INC·Filed 2002·Granted Jan 6, 2004·17 cites·20 claims
- 4471US6373901B1Method and apparatus for conditioning modulated signals using window expansionMOTOROLA INC·Filed 1996·Granted Apr 16, 2002·74 cites·20 claims
- 4571US5438694ADistortion compensation for a pulsewidth-modulated circuitMOTOROLA INC·Filed 1993·Granted Aug 1, 1995·22 cites·12 claims
- 4671US5422597AMeans and method of enhancing signal resolution and dynamic range extension in a pulse width modulation amplifierMOTOROLA INC·Filed 1994·Granted Jun 6, 1995·22 cites·20 claims
- 4770US8121241B2Method and apparatus for processing radio frequency signalsSTENGEL ROBERT E·Filed 2008·Granted Feb 21, 2012·6 cites·21 claims
- 4869US7102429B2RF amplifier with enhanced efficiencyMOTOROLA INC·Filed 2002·Granted Sep 5, 2006·15 cites·34 claims
- 4968US7869769B2Method and apparatus for reconfigurable frequency generationMOTOROLA INC·Filed 2007·Granted Jan 11, 2011·7 cites·10 claims
- 5066US7143125B2Method and apparatus for noise shaping in direct digital synthesis circuitsMOTOROLA INC·Filed 2003·Granted Nov 28, 2006·12 cites·24 claims
Showing the top 50 of 93 patent records by PatentIndex Score.
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