Inventor · disambiguated record
John F. Ewen
Also filed as: EWEN JOHN F · EWEN JOHN FARLEY
17 granted patents·850 citations·filing 1986–2023
95Inventor score
Top patents by PatentIndex Score
17 records- 0197US6862322B1Switchable-bandwidth optical receiverIBM·Filed 2000·Granted Mar 1, 2005·137 cites·16 claims
- 0297US5497337AMethod for designing high-Q inductors in silicon technology without expensive metalizationIBM·Filed 1994·Granted Mar 5, 1996·279 cites·5 claims
- 0397US5301196AHalf-speed clock recovery and demultiplexer circuitIBM·Filed 1992·Granted Apr 5, 1994·144 cites·11 claims
- 0492US9369263B1Calibration of sampling phase and aperature errors in multi-phase sampling systemsIBM·Filed 2015·Granted Jun 14, 2016·13 cites·19 claims
- 0589US5440277AVCO bias circuit with low supply and temperature sensitivityIBM·Filed 1994·Granted Aug 8, 1995·57 cites·4 claims
- 0687US8872587B2Generating negative impedance compensationIBM·Filed 2013·Granted Oct 28, 2014·15 cites·9 claims
- 0787US6735731B2Architecture for built-in self-test of parallel optical transceiversIBM·Filed 2001·Granted May 11, 2004·42 cites·28 claims
- 0885US6297685B1High-speed fully-compensated low-voltage differential driver/translator circuit arrangementIBM·Filed 2000·Granted Oct 2, 2001·36 cites·14 claims
- 0980US6265857B1Constant current source circuit with variable temperature compensationIBM·Filed 1998·Granted Jul 24, 2001·70 cites·14 claims
- 1075US4831284ATwo level differential current switch MESFET logicIBM·Filed 1988·Granted May 16, 1989·21 cites·12 claims
- 1165US7936208B2Bias circuit for a MOS deviceIBM·Filed 2008·Granted May 3, 2011·7 cites·1 claims
- 1259US4694261AIntegrated high gain voltage controlled oscillatorIBM·Filed 1986·Granted Sep 15, 1987·15 cites·10 claims
- 1355US12334948B1Adaptive analog equalization in ADC-based receiverMARVELL ASIA PTE LTD·Filed 2023·Granted Jun 17, 2025·0 cites·18 claims
- 1446US4833425AAnalog macro embedded in a digital gate arrayIBM·Filed 1988·Granted May 23, 1989·10 cites·13 claims
- 1539US9542354B2Generating a parallel data signal by converting serial data of a serial data signal to parallel dataGLOBALFOUNDRIES INC·Filed 2014·Granted Jan 10, 2017·0 cites·18 claims
- 1639US7888998B1Low-voltage CMOS error amplifier with implicit referenceIBM·Filed 2009·Granted Feb 15, 2011·0 cites·20 claims
- 1737US5381060ADifferential current switch to super buffer logic level translatorIBM·Filed 1992·Granted Jan 10, 1995·4 cites·15 claims
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