Inventor · disambiguated record
David F. Sorrells
Also filed as: SORRELLS DAVID · SORRELLS DAVID F
202 granted patents·27 pending applications·11,310 citations·filing 1988–2017
99Inventor score
Files withPARKERVISION INC170SORRELLS DAVID F43PARKER VISION INC5RAWLINS GREGORY S4SILVER GREGORY S3
Top patents by PatentIndex Score
229 records- 0199US8233858B2RF power transmission, modulation, and amplification embodiments, including control circuitry for controlling power amplifier output stagesSORRELLS DAVID F·Filed 2006·Granted Jul 31, 2012·50 cites·29 claims
- 0299US7885682B2Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of samePARKERVISION INC·Filed 2007·Granted Feb 8, 2011·108 cites·20 claims
- 0399US7750733B2Systems and methods of RF power transmission, modulation, and amplification, including embodiments for extending RF transmission bandwidthPARKERVISION INC·Filed 2008·Granted Jul 6, 2010·107 cites·38 claims
- 0499US7672650B2Systems and methods of RF power transmission, modulation, and amplification, including multiple input single output (MISO) amplifier embodiments comprising harmonic control circuitryPARKERVISION INC·Filed 2006·Granted Mar 2, 2010·75 cites·28 claims
- 0599US7647030B2Multiple input single output (MISO) amplifier with circuit branch output trackingPARKERVISION INC·Filed 2006·Granted Jan 12, 2010·89 cites·20 claims
- 0699US7639072B2Controlling a power amplifier to transition among amplifier operational classes according to at least an output signal waveform trajectoryPARKERVISION INC·Filed 2006·Granted Dec 29, 2009·76 cites·55 claims
- 0799US7620129B2RF power transmission, modulation, and amplification, including embodiments for generating vector modulation control signalsPARKERVISION INC·Filed 2008·Granted Nov 17, 2009·95 cites·13 claims
- 0899US7526261B2RF power transmission, modulation, and amplification, including cartesian 4-branch embodimentsPARKERVISION INC·Filed 2006·Granted Apr 28, 2009·78 cites·105 claims
- 0999US7466760B2Systems and methods of RF power transmission, modulation, and amplification, including transfer function embodimentsPARKERVISION INC·Filed 2007·Granted Dec 16, 2008·66 cites·30 claims
- 1099US7421036B2Systems and methods of RF power transmission, modulation, and amplification, including transfer function embodimentsPARKERVISION INC·Filed 2007·Granted Sep 2, 2008·103 cites·45 claims
- 1199US7378902B2Systems and methods of RF power transmission, modulation, and amplification, including embodiments for gain and phase controlPARKERVISION INC·Filed 2007·Granted May 27, 2008·119 cites·68 claims
- 1299US7355470B2Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioningPARKERVISION INC·Filed 2006·Granted Apr 8, 2008·141 cites·48 claims
- 1399US7327803B2Systems and methods for vector power amplificationPARKERVISION INC·Filed 2005·Granted Feb 5, 2008·101 cites·113 claims
- 1499US7245886B2Method and system for frequency up-conversion with modulation embodimentsPARKERVISION INC·Filed 2005·Granted Jul 17, 2007·60 cites·37 claims
- 1599US7233969B2Method and apparatus for a parallel correlator and applications thereofPARKERVISION INC·Filed 2005·Granted Jun 19, 2007·141 cites·23 claims
- 1699US7184723B2Systems and methods for vector power amplificationPARKERVISION INC·Filed 2005·Granted Feb 27, 2007·124 cites·94 claims
- 1799US7065162B1Method and system for down-converting an electromagnetic signal, and transforms for samePARKERVISION INC·Filed 2000·Granted Jun 20, 2006·98 cites·45 claims
- 1899US7054296B1Wireless local area network (WLAN) technology and applications including techniques of universal frequency translationPARKERVISION INC·Filed 2000·Granted May 30, 2006·464 cites·57 claims
- 1999US7039372B1Method and system for frequency up-conversion with modulation embodimentsPARKERVISION INC·Filed 2000·Granted May 2, 2006·115 cites·131 claims
- 2099US6813485B2Method and system for down-converting and up-converting an electromagnetic signal, and transforms for samePARKERVISION INC·Filed 2001·Granted Nov 2, 2004·191 cites·25 claims
- 2199US6061551AMethod and system for down-converting electromagnetic signalsPARKERVISION INC·Filed 1998·Granted May 9, 2000·238 cites·204 claims
- 2298US8755454B2Antenna controlSORRELLS DAVID F·Filed 2012·Granted Jun 17, 2014·35 cites·21 claims
- 2398US8639196B2Control modulesSORRELLS DAVID F·Filed 2010·Granted Jan 28, 2014·26 cites·15 claims
- 2498US8626093B2RF power transmission, modulation, and amplification embodimentsSORRELLS DAVID F·Filed 2012·Granted Jan 7, 2014·28 cites·20 claims
- 2598US8334722B2Systems and methods of RF power transmission, modulation and amplificationSORRELLS DAVID F·Filed 2008·Granted Dec 18, 2012·46 cites·8 claims
- 2698US8229023B2Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodimentsSORRELLS DAVID F·Filed 2011·Granted Jul 24, 2012·17 cites·15 claims
- 2798US8223898B2Method and system for down-converting an electromagnetic signal, and transforms for sameSORRELLS DAVID F·Filed 2010·Granted Jul 17, 2012·15 cites·14 claims
- 2898US8190116B2Methods and systems for down-converting a signal using a complementary transistor structureSORRELLS DAVID F·Filed 2011·Granted May 29, 2012·15 cites·56 claims
- 2998US8059749B2Systems and methods of RF power transmission, modulation, and amplification, including embodiments for compensating for waveform distortionSORRELLS DAVID F·Filed 2007·Granted Nov 15, 2011·51 cites·13 claims
- 3098US8036306B2Systems and methods of RF power transmission, modulation and amplification, including embodiments for compensating for waveform distortionPARKERVISION INC·Filed 2007·Granted Oct 11, 2011·42 cites·8 claims
- 3198US8031804B2Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortionPARKERVISION INC·Filed 2006·Granted Oct 4, 2011·48 cites·38 claims
- 3298US8026764B2Generation and amplification of substantially constant envelope signals, including switching an output among a plurality of nodesPARKERVISION INC·Filed 2009·Granted Sep 27, 2011·44 cites·14 claims
- 3398US8013675B2Combiner-less multiple input single output (MISO) amplification with blended controlPARKERVISION INC·Filed 2008·Granted Sep 6, 2011·40 cites·37 claims
- 3498US7945224B2Systems and methods of RF power transmission, modulation, and amplification, including waveform distortion compensation embodimentsPARKERVISION INC·Filed 2006·Granted May 17, 2011·51 cites·16 claims
- 3598US7937059B2Converting an electromagnetic signal via sub-samplingPARKERVISION INC·Filed 2008·Granted May 3, 2011·24 cites·17 claims
- 3698US7937106B2Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of samePARKERVISION INC·Filed 2006·Granted May 3, 2011·58 cites·27 claims
- 3798US7932776B2RF power transmission, modulation, and amplification embodimentsPARKERVISION INC·Filed 2009·Granted Apr 26, 2011·46 cites·15 claims
- 3898US7911272B2Systems and methods of RF power transmission, modulation, and amplification, including blended control embodimentsPARKERVISION INC·Filed 2008·Granted Mar 22, 2011·47 cites·43 claims
- 3998US7865177B2Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationshipsPARKERVISION INC·Filed 2009·Granted Jan 4, 2011·40 cites·15 claims
- 4098US7844235B2RF power transmission, modulation, and amplification, including harmonic control embodimentsPARKERVISION INC·Filed 2006·Granted Nov 30, 2010·52 cites·32 claims
- 4198US7835709B2RF power transmission, modulation, and amplification using multiple input single output (MISO) amplifiers to process phase angle and magnitude informationPARKERVISION INC·Filed 2006·Granted Nov 16, 2010·56 cites·20 claims
- 4298US7724845B2Method and system for down-converting and electromagnetic signal, and transforms for samePARKERVISION INC·Filed 2006·Granted May 25, 2010·37 cites·25 claims
- 4398US7693502B2Method and system for down-converting an electromagnetic signal, transforms for same, and aperture relationshipsPARKERVISION INC·Filed 2008·Granted Apr 6, 2010·33 cites·11 claims
- 4498US7653145B2Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementationsPARKERVISION INC·Filed 2005·Granted Jan 26, 2010·39 cites·26 claims
- 4598US7620378B2Method and system for frequency up-conversion with modulation embodimentsPARKERVISION INC·Filed 2007·Granted Nov 17, 2009·33 cites·8 claims
- 4698US7496342B2Down-converting electromagnetic signals, including controlled discharge of capacitorsPARKERVISION INC·Filed 2004·Granted Feb 24, 2009·55 cites·23 claims
- 4798US7423477B2Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioningPARKERVISION INC·Filed 2007·Granted Sep 9, 2008·76 cites·36 claims
- 4898US7414469B2Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioningPARKERVISION INC·Filed 2007·Granted Aug 19, 2008·64 cites·12 claims
- 4998US7376410B2Methods and systems for down-converting a signal using a complementary transistor structurePARKERVISION INC·Filed 2006·Granted May 20, 2008·48 cites·28 claims
- 5098US7218907B2Method and circuit for down-converting a signalPARKERVISION INC·Filed 2005·Granted May 15, 2007·62 cites·24 claims
Showing the top 50 of 229 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →