Inventor · disambiguated record
Derek K. Shaeffer
Also filed as: SHAEFFER DEREK · SHAEFFER DEREK K · SHAEFFER DEREK KEITH
74 granted patents·6 pending applications·394 citations·filing 1997–2024
98Inventor score
Top patents by PatentIndex Score
80 records- 0196US10885852B2OLED voltage driver with current-voltage compensationAPPLE INC·Filed 2020·Granted Jan 5, 2021·5 cites·20 claims
- 0296US10762836B1Electronic display emission scanning using row drivers and microdriversAPPLE INC·Filed 2016·Granted Sep 1, 2020·17 cites·23 claims
- 0394US8567246B2Integrated MEMS device and method of useSHAEFFER DEREK·Filed 2010·Granted Oct 29, 2013·20 cites·18 claims
- 0493US11645976B2Local passive matrix displayAPPLE INC·Filed 2022·Granted May 9, 2023·2 cites·18 claims
- 0593US11263963B2Local passive matrix displayAPPLE INC·Filed 2019·Granted Mar 1, 2022·6 cites·10 claims
- 0691US11189202B1Spatially leaking temporal integrator for pixel compensationAPPLE INC·Filed 2019·Granted Nov 30, 2021·5 cites·16 claims
- 0791US9506757B2Duty-cycled gyroscopeINVENSENSE INC·Filed 2013·Granted Nov 29, 2016·12 cites·7 claims
- 0889US10438535B2Time-interleaved source driver for display devicesAPPLE INC·Filed 2017·Granted Oct 8, 2019·5 cites·17 claims
- 0989US6028990AMethod and apparatus for a lateral flux capacitorUNIV LELAND STANFORD JUNIOR·Filed 1998·Granted Feb 22, 2000·76 cites·7 claims
- 1088US8760392B2Wireless motion processing sensor systems suitable for mobile and battery operationLLOYD STEPHEN·Filed 2010·Granted Jun 24, 2014·24 cites·26 claims
- 1187US10891882B1Techniques for testing electrically configurable digital displays, and associated display architectureAPPLE INC·Filed 2018·Granted Jan 12, 2021·3 cites·28 claims
- 1286US10854129B2Hybrid architecture for zero border displayAPPLE INC·Filed 2019·Granted Dec 1, 2020·2 cites·18 claims
- 1386US8947081B2Micromachined resonant magnetic field sensorsSEEGER JOSEPH·Filed 2011·Granted Feb 3, 2015·6 cites·13 claims
- 1486US8860409B2Micromachined resonant magnetic field sensorsSEEGER JOSEPH·Filed 2011·Granted Oct 14, 2014·6 cites·16 claims
- 1586US6084285ALateral flux capacitor having fractal-shaped perimetersUNIV LELAND STANFORD JUNIOR·Filed 1997·Granted Jul 4, 2000·69 cites·17 claims
- 1685US12080201B2Touch sensing utilizing integrated micro circuitryAPPLE INC·Filed 2023·Granted Sep 3, 2024·0 cites·20 claims
- 1784US7295068B2Increasing the linearity of a transconductance cellBECEEM COMM INC·Filed 2005·Granted Nov 13, 2007·15 cites·30 claims
- 1883US12100333B2Hybrid architecture for zero border displayAPPLE INC·Filed 2023·Granted Sep 24, 2024·0 cites·20 claims
- 1983US11073927B2Touch sensing utilizing integrated micro circuitryAPPLE INC·Filed 2019·Granted Jul 27, 2021·1 cites·27 claims
- 2083US10891884B1Test-response comparison circuit and scan data transfer scheme in a DFT architecture for micro LED based display panelsAPPLE INC·Filed 2019·Granted Jan 12, 2021·3 cites·19 claims
- 2183US9459274B2Round-robin sensing device and method of useINVENSENSE INC·Filed 2013·Granted Oct 4, 2016·4 cites·21 claims
- 2282US8774738B2Closed loop power control for a wireless transmitterDAKSHINAMURTHY SRIRAMAN·Filed 2012·Granted Jul 8, 2014·7 cites·22 claims
- 2382US7164313B2Method and apparatus for opening a feedback loopASPENDOS COMM·Filed 2004·Granted Jan 16, 2007·26 cites·36 claims
- 2481US7433420B1Phase rotation estimationBECEEM COMM INC·Filed 2005·Granted Oct 7, 2008·11 cites·17 claims
- 2580US10755618B2Noise mitigation for display panel sensingAPPLE INC·Filed 2019·Granted Aug 25, 2020·2 cites·20 claims
- 2680US8681029B1Chopper-stabilization method and apparatus for sigma delta modulatorsINVENSENSE INC·Filed 2012·Granted Mar 25, 2014·7 cites·37 claims
- 2779US10573211B2Noise mitigation for display panel sensingAPPLE INC·Filed 2019·Granted Feb 25, 2020·2 cites·20 claims
- 2878US11727850B2Hybrid architecture for zero border displayAPPLE INC·Filed 2022·Granted Aug 15, 2023·0 cites·19 claims
- 2978US9006832B2High-voltage MEMS apparatus and methodSHAEFFER DEREK·Filed 2011·Granted Apr 14, 2015·5 cites·26 claims
- 3076US12356333B2Listen-before-talk systems, devices, and methods based on intra-device operationsAPPLE INC·Filed 2023·Granted Jul 8, 2025·0 cites·20 claims
- 3174US12159574B2Local passive matrix displayAPPLE INC·Filed 2023·Granted Dec 3, 2024·0 cites·14 claims
- 3274US11775095B2Touch sensing utilizing integrated micro circuitryAPPLE INC·Filed 2021·Granted Oct 3, 2023·0 cites·20 claims
- 3374US10200059B2Digital to analog converterAPPLE INC·Filed 2017·Granted Feb 5, 2019·3 cites·20 claims
- 3473US9285207B2Linear capacitive displacement sensorINVENSENSE INC·Filed 2013·Granted Mar 15, 2016·2 cites·11 claims
- 3573US8275319B2Processing of multi-carrier signals before power amplifier amplificationDAKSHINAMURTHY SRIRAMAN·Filed 2010·Granted Sep 25, 2012·3 cites·30 claims
- 3672US11790873B2Correction for defective memory of a memory-in-pixel displayAPPLE INC·Filed 2022·Granted Oct 17, 2023·0 cites·20 claims
- 3772US10650741B2OLED voltage driver with current-voltage compensationAPPLE INC·Filed 2018·Granted May 12, 2020·1 cites·21 claims
- 3871US7132885B2Low phase shift implementation of the baseband circuitry of a Cartesian feedback loopASPENDOS COMM·Filed 2005·Granted Nov 7, 2006·8 cites·13 claims
- 3970US11722964B2Listen-before-talk systems, devices, and methods based on intra-device operationsAPPLE INC·Filed 2022·Granted Aug 8, 2023·0 cites·20 claims
- 4070US9098098B2Curvature-corrected bandgap referenceINVENSENSE INC·Filed 2012·Granted Aug 4, 2015·4 cites·15 claims
- 4169US8884710B2Gyroscope with phase and duty-cycle locked loopSHAEFFER DEREK·Filed 2011·Granted Nov 11, 2014·5 cites·12 claims
- 4268US12451056B2Systems and methods for mitigating micro-LED failuresAPPLE INC·Filed 2024·Granted Oct 21, 2025·0 cites·20 claims
- 4368US11417298B2Correction for defective memory of a memory-in-pixel displayAPPLE INC·Filed 2021·Granted Aug 16, 2022·0 cites·20 claims
- 4468US8437697B2Processing of multi-carrier signals before power amplifier amplificationDAKSHINAMURTHY SRIRAMAN·Filed 2012·Granted May 7, 2013·2 cites·21 claims
- 4567US11341893B2Hybrid architecture for zero border displayAPPLE INC·Filed 2020·Granted May 24, 2022·0 cites·21 claims
- 4665US8841958B1High-voltage charge pumpINVENSENSE INC·Filed 2013·Granted Sep 23, 2014·2 cites·13 claims
- 4763US11272457B1Listen-before-talk systems, devices, and methods based on intra-device operationsAPPLE INC·Filed 2020·Granted Mar 8, 2022·0 cites·20 claims
- 4863US9124310B2RF transmitter having broadband impedance matching for multi-band application supportBROADCOM CORP·Filed 2014·Granted Sep 1, 2015·1 cites·20 claims
- 4963US8639286B2RF transmitter having broadband impedance matching for multi-band application supportMOSTAFA MOHAMED A·Filed 2011·Granted Jan 28, 2014·2 cites·20 claims
- 5062US10714011B2OLED voltage driver with current-voltage compensationAPPLE INC·Filed 2018·Granted Jul 14, 2020·0 cites·30 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
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