Inventor · disambiguated record
Derk Reefman
Also filed as: REEFMAN DERK
25 granted patents·11 pending applications·362 citations·filing 1998–2023
96Inventor score
Files withKONINKL PHILIPS ELECTRONICS NV14REEFMAN DERK4KONINKLIJKE PHILIPS NV3NXP BV3KLOOTWIJK JOHAN H2
Top patents by PatentIndex Score
36 records- 0196US8395914B2DC-to-DC converter comprising a reconfigurable capacitor unitKLOOTWIJK JOHAN H·Filed 2008·Granted Mar 12, 2013·86 cites·17 claims
- 0294US8085524B2Integrated capacitor arrangement for ultrahigh capacitance valuesROOZEBOOM FREDDY·Filed 2006·Granted Dec 27, 2011·80 cites·17 claims
- 0391US11583193B2Wireless intraluminal device and systemKONINKLIJKE PHILIPS NV·Filed 2017·Granted Feb 21, 2023·16 cites·8 claims
- 0490US10365338B2Superconducting coil support device and method and apparatus including superconducting coil support deviceKONINKLIJKE PHILIPS NV·Filed 2015·Granted Jul 30, 2019·6 cites·20 claims
- 0589US11638576B2Wireless intraluminal imaging device and associated devices, systems, and methodsKONINKLIJKE PHILIPS NV·Filed 2017·Granted May 2, 2023·15 cites·21 claims
- 0684US8193685B2Thin film detector for presence detectionKLEE MAREIKE·Filed 2008·Granted Jun 5, 2012·32 cites·8 claims
- 0784US6975257B2Sigma-delta modulationKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Dec 13, 2005·33 cites·6 claims
- 0883US8395472B2Planar, monolithically integrated coilROOZEBOOM FREDDY·Filed 2009·Granted Mar 12, 2013·11 cites·18 claims
- 0976US6690812B2Watermark insertion and extraction into and from a high quality signal is performed using sample rate conversionKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Feb 10, 2004·14 cites·13 claims
- 1074US8866480B2Inductively powered electric component of an MRI apparatusWAFFENSCHMIDT EBERHARD·Filed 2009·Granted Oct 21, 2014·8 cites·12 claims
- 1169US7325131B2Robust watermark for DSD signalsKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Jan 29, 2008·7 cites·8 claims
- 1268US8729665B2Integration substrate with a ultra-high-density capacitor and a through-substrate viaKLOOTWIJK JOHAN H·Filed 2008·Granted May 20, 2014·4 cites·14 claims
- 1368US8310024B2Assembly, chip and method of operatingREEFMAN DERK·Filed 2007·Granted Nov 13, 2012·4 cites·24 claims
- 1467US6819275B2Audio signal compressionKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Nov 16, 2004·13 cites·11 claims
- 1567US2023190119A1Wireless intraluminal device and systemPHILIPS IMAGE GUIDED THERAPY CORP·Filed 2023·Application pending·0 cites
- 1664US8610404B2Charge pump DC-DC converter comprising solid state batteriesREEFMAN DERK·Filed 2007·Granted Dec 17, 2013·7 cites·10 claims
- 1763US7302303B2Mixing system for mixing oversampled digital audio signalsKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Nov 27, 2007·5 cites·20 claims
- 1860US6370490B1Method of determining an intrinsic spectrum from a measured spectrumPHILIPS CORP·Filed 2000·Granted Apr 9, 2002·5 cites·4 claims
- 1959US7808225B2Parallel arranged power suppliesST ERICSSON SA·Filed 2005·Granted Oct 5, 2010·5 cites·19 claims
- 2053US7345606B2DA-converter system and a method for converting a multi-bit digital signal to an analog signalNXP BV·Filed 2005·Granted Mar 18, 2008·3 cites·8 claims
- 2151US7127644B2Method and arrangement for concealing errorsKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Oct 24, 2006·1 cites·4 claims
- 2247US2009287493A1Direct stream digital audio with minimal storage requirementKONINKL PHILIPS ELECTRONICS NV·Filed 2006·Application pending·0 cites
- 2346US2008205497A1Assembly Comprising a Wireless-Communication Semiconductor ChipKONINKL PHILIPS ELECTRONICS NV·Filed 2006·Application pending·0 cites
- 2441US8634445B2Pulse modulation and demodulation in a multiband UWB communication systemREEFMAN DERK·Filed 2005·Granted Jan 21, 2014·0 cites·19 claims
- 2541US6606043B2Method and arrangement for synchronizing a sigma delta-modulatorKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Aug 12, 2003·2 cites·5 claims
- 2641US2008205488A1Differential Phase Coding in Wireless Communication SystemKONINKL PHILIPS ELECTRONICS NV·Filed 2005·Application pending·0 cites
- 2740US2008298507A1Electronic Quadrature DeviceNXP BV·Filed 2006·Application pending·0 cites
- 2837US7330142B2Sigma-delta modulator with a quantizer/gain elementKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Granted Feb 12, 2008·0 cites·20 claims
- 2937US7218263B2Generating bit-streams with higher compression gainsKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Granted May 15, 2007·0 cites·10 claims
- 3037US6108401AMethod of standard-less phase analysis by means of a diffractogramPHILIPS CORP·Filed 1998·Granted Aug 22, 2000·5 cites·7 claims
- 3137US2004230427A1Audio signal compressionFiled 2004·Application pending·0 cites
- 3235US2007290906A1Noise-Shaping Device and Method with Improved Lossless Compression and Good Audio Quality for High Fidelity AudioKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Application pending·0 cites
- 3335US2007052556A1Adaptive filteringKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Application pending·0 cites
- 3434US2010045247A1Parallel arranged linear amplifier and dc-dc converterNXP BV·Filed 2006·Application pending·0 cites
- 3532US2002107898A1Digital low pass filterFiled 2001·Application pending·0 cites
- 3632US2006049970A1Sigma-delta modulationREEFMAN DERK·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →