Inventor · disambiguated record
John E. Gersbach
Also filed as: GERSBACH JOHN E · GERSBACH JOHN EDWIN
52 granted patents·1,850 citations·filing 1974–1998
99Inventor score
Top patents by PatentIndex Score
52 records- 0199US5382922ACalibration systems and methods for setting PLL gain characteristics and center frequencyIBM·Filed 1993·Granted Jan 17, 1995·197 cites·43 claims
- 0294US5666118ASelf calibration segmented digital-to-analog converterIBM·Filed 1996·Granted Sep 9, 1997·98 cites·2 claims
- 0394US5508660ACharge pump circuit with symmetrical current output for phase-controlled loop systemIBM·Filed 1995·Granted Apr 16, 1996·118 cites·20 claims
- 0493US5043674ADifferential receiver with high common-mode rangeIBM·Filed 1990·Granted Aug 27, 1991·69 cites·6 claims
- 0592US5757238AFast locking variable frequency phase-locked loopIBM·Filed 1996·Granted May 26, 1998·97 cites·4 claims
- 0689US6031403APull-up and pull-down circuitsIBM·Filed 1996·Granted Feb 29, 2000·60 cites·18 claims
- 0789US5873053AOn-chip thermometry for control of chip operating temperatureIBM·Filed 1997·Granted Feb 16, 1999·106 cites·21 claims
- 0889US5212716AData edge phase sorting circuitsIBM·Filed 1991·Granted May 18, 1993·73 cites·20 claims
- 0985US5485126ARing oscillator circuit having output with fifty percent duty cycleIBM·Filed 1994·Granted Jan 16, 1996·41 cites·19 claims
- 1083US4193127ASimultaneous read/write cellIBM·Filed 1979·Granted Mar 11, 1980·23 cites·12 claims
- 1180US5347234ADigital voltage controlled oscillatorIBM·Filed 1993·Granted Sep 13, 1994·46 cites·17 claims
- 1280US5293405AAdaptive equalization and regeneration systemIBM·Filed 1991·Granted Mar 8, 1994·100 cites·18 claims
- 1378US5629650ASelf-biased phase-locked loopIBM·Filed 1996·Granted May 13, 1997·43 cites·22 claims
- 1475US6097215ALow power voltage translation circuitIBM·Filed 1998·Granted Aug 1, 2000·32 cites·29 claims
- 1575US5295155AMulti-level digital data regeneration systemIBM·Filed 1992·Granted Mar 15, 1994·75 cites·15 claims
- 1675US5245637APhase and frequency adjustable digital phase lock logic systemIBM·Filed 1991·Granted Sep 14, 1993·79 cites·20 claims
- 1774US5668503ASystem and method for calibrating damping factor or analog PLLIBM·Filed 1996·Granted Sep 16, 1997·32 cites·7 claims
- 1873US5825226ADelay equalization apparatus and methodIBM·Filed 1995·Granted Oct 20, 1998·37 cites·16 claims
- 1971US5635869ACurrent reference circuitIBM·Filed 1995·Granted Jun 3, 1997·28 cites·13 claims
- 2069US5642116ASelf calibrating segmented digital-to-analog converterIBM·Filed 1995·Granted Jun 24, 1997·27 cites·8 claims
- 2168US5838205AVariable-speed phase-locked loop system with on-the-fly switching and method thereforIBM·Filed 1997·Granted Nov 17, 1998·31 cites·14 claims
- 2266US5220581ADigital data link performance monitorIBM·Filed 1991·Granted Jun 15, 1993·50 cites·21 claims
- 2364US5739725ADigitally controlled oscillator circuitIBM·Filed 1996·Granted Apr 14, 1998·26 cites·16 claims
- 2464US5729159AMultiple reference sense amplifierIBM·Filed 1996·Granted Mar 17, 1998·23 cites·2 claims
- 2561US5504459AFilter network for phase-locked loop circuitIBM·Filed 1995·Granted Apr 2, 1996·23 cites·14 claims
- 2661US5391935AAssertive latching flip-flopIBM·Filed 1993·Granted Feb 21, 1995·16 cites·10 claims
- 2761US5371766AClock extraction and data regeneration logic for multiple speed data communications systemsIBM·Filed 1992·Granted Dec 6, 1994·38 cites·17 claims
- 2859US5694087AAnti-latching mechanism for phase lock loopsIBM·Filed 1996·Granted Dec 2, 1997·22 cites·15 claims
- 2959US5563552ASystem and method for calibrating damping factor of analog PLLIBM·Filed 1995·Granted Oct 8, 1996·19 cites·25 claims
- 3057US5870404ASelf-timed circuit having critical path timing detectionIBM·Filed 1996·Granted Feb 9, 1999·33 cites·20 claims
- 3155US5418789AFast communication link bit error rate estimatorIBM·Filed 1992·Granted May 23, 1995·28 cites·9 claims
- 3254US5101203ADigital data regeneration and deserialization circuitsIBM·Filed 1990·Granted Mar 31, 1992·16 cites·6 claims
- 3352US5185768ADigital integrating clock extractorIBM·Filed 1990·Granted Feb 9, 1993·23 cites·22 claims
- 3451US5598313AElectrostatic discharge suppression circuit for integrated circuit chipsIBM·Filed 1994·Granted Jan 28, 1997·13 cites·15 claims
- 3549US5694032ABand gap current reference circuitIBM·Filed 1996·Granted Dec 2, 1997·11 cites·16 claims
- 3648US5539342ALow distortion memory write current head driveIBM·Filed 1995·Granted Jul 23, 1996·12 cites·19 claims
- 3747US6118261ASlew rate control circuitIBM·Filed 1993·Granted Sep 12, 2000·8 cites·23 claims
- 3847US4477846ASensitive amplifier having a high voltage switchIBM·Filed 1981·Granted Oct 16, 1984·6 cites·13 claims
- 3946US4433283ABand gap regulator circuitIBM·Filed 1981·Granted Feb 21, 1984·9 cites·19 claims
- 4045US6198339B1CVF current reference with standby modeIBM·Filed 1996·Granted Mar 6, 2001·9 cites·8 claims
- 4145US5422642ADC centering analog receiver for flash A/D converterIBM·Filed 1993·Granted Jun 6, 1995·13 cites·18 claims
- 4244US4181981ABipolar two device dynamic memory cellIBM·Filed 1977·Granted Jan 1, 1980·5 cites·8 claims
- 4343US5724008APhase-locked loop with charge distributionIBM·Filed 1996·Granted Mar 3, 1998·9 cites·15 claims
- 4442US5627456AAll FET fully integrated current reference circuitIBM·Filed 1995·Granted May 6, 1997·9 cites·5 claims
- 4539US4302823ADifferential charge sensing systemIBM·Filed 1979·Granted Nov 24, 1981·4 cites·14 claims
- 4638US3982171AGate current sourceIBM·Filed 1974·Granted Sep 21, 1976·3 cites·6 claims
- 4733US5410186AProgrammable digital to analog converterINT BUSINESS MACHINES COMPANY·Filed 1994·Granted Apr 25, 1995·5 cites·18 claims
- 4830US5668709ASwitched capacitor current sourceIBM·Filed 1995·Granted Sep 16, 1997·0 cites·9 claims
- 4930US5384546ATime domain component multiplexorIBM·Filed 1993·Granted Jan 24, 1995·0 cites·18 claims
- 5030US4675559ADifferential circuit having a high voltage switchIBM·Filed 1984·Granted Jun 23, 1987·0 cites·6 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →