Inventor · disambiguated record
William C. Black
Also filed as: BLACK JR WILLIAM C · BLACK WILLIAM · BLACK WILLIAM C
51 granted patents·2 pending applications·1,672 citations·filing 1973–2013
99Inventor score
Files withXILINX INC24BLACK WILLIAM C7BIOMAGNETIC TECH INC6UNIV IOWA STATE RES FOUND INC6NONVOLATILE ELECTRONICS INC2
Top patents by PatentIndex Score
53 records- 0197US6542000B1Nonvolatile programmable logic devicesUNIV IOWA STATE RES FOUND INC·Filed 2000·Granted Apr 1, 2003·204 cites·48 claims
- 0296US5831426AMagnetic current sensorNONVOLATILE ELECTRONICS INC·Filed 1996·Granted Nov 3, 1998·177 cites·17 claims
- 0394US5982309AParallel-to-serial CMOS data converter with a selectable bit width mode D flip-flop M matrixUNIV IOWA STATE RES FOUND INC·Filed 1998·Granted Nov 9, 1999·112 cites·29 claims
- 0492US6317359B1Non-volatile magnetic circuitUNIV IOWA STATE RES FOUND INC·Filed 2000·Granted Nov 13, 2001·70 cites·27 claims
- 0591US4014743AMethod for continuous preparation of cooked thinned starch pastesPENICK & FORD LTD·Filed 1973·Granted Mar 29, 1977·37 cites·6 claims
- 0690US6693826B1Magnetic memory sensing method and apparatusUNIV IOWA RES FOUND·Filed 2002·Granted Feb 17, 2004·62 cites·47 claims
- 0789US7133648B1Bidirectional multi-gigabit transceiverXILINX INC·Filed 2003·Granted Nov 7, 2006·40 cites·28 claims
- 0889US6343032B1Non-volatile spin dependent tunnel junction circuitUNIV IOWA STATE RES FOUND INC·Filed 2000·Granted Jan 29, 2002·59 cites·66 claims
- 0988US5442289ABiomagnetometer having flexible sensorBIOMAGNETIC TECH INC·Filed 1992·Granted Aug 15, 1995·83 cites·20 claims
- 1088US5269325AAnalysis of biological signals using data from arrays of sensorsBIOMAGNETIC TECH INC·Filed 1993·Granted Dec 14, 1993·87 cites·17 claims
- 1186US8989243B1Power line device with directional couplerBLACK WILLIAM C·Filed 2011·Granted Mar 24, 2015·8 cites·16 claims
- 1286US6870390B1Tx line driver with common mode idle state and selectable slew ratesXILINX INC·Filed 2003·Granted Mar 22, 2005·29 cites·29 claims
- 1386US5061680ASuperconducting biomagnetometer with remote pickup coilBIOMAGNETIC TECH INC·Filed 1989·Granted Oct 29, 1991·54 cites·20 claims
- 1485US6976102B1Integrated circuit with auto negotiationXILINX INC·Filed 2003·Granted Dec 13, 2005·26 cites·21 claims
- 1583US5158932ASuperconducting biomagnetometer with inductively coupled pickup coilBIOMAGNETIC TECH INC·Filed 1990·Granted Oct 27, 1992·57 cites·17 claims
- 1682US6975132B2DAC based driver with selectable pre-emphasis signal levelsXILINX INC·Filed 2003·Granted Dec 13, 2005·30 cites·24 claims
- 1782US5444372AMagnetometer and method of measuring a magnetic fieldBIOMAGNETIC TECH INC·Filed 1992·Granted Aug 22, 1995·54 cites·19 claims
- 1881US7747793B1Method and apparatus for controlling a distributed buffering system having configurable circuitryXILINX INC·Filed 2007·Granted Jun 29, 2010·8 cites·12 claims
- 1981US6956442B2Ring oscillator with peaking stagesXILINX INC·Filed 2003·Granted Oct 18, 2005·27 cites·23 claims
- 2080US7546499B1Communication signal testing with a programmable logic deviceXILINX INC·Filed 2007·Granted Jun 9, 2009·9 cites·7 claims
- 2179US7493095B2PMA RX in coarse loop for high speed samplingXILINX INC·Filed 2007·Granted Feb 17, 2009·9 cites·14 claims
- 2279US7376767B1Distributed buffering system having programmable interconnecting logic and applications thereofXILINX INC·Filed 2002·Granted May 20, 2008·25 cites·19 claims
- 2379US7047457B1Testing of a multi-gigabit transceiverXILINX INC·Filed 2003·Granted May 16, 2006·19 cites·28 claims
- 2478US6252390B1Magnetically coupled signal isolatorNONVOLATILE ELECTRONICS INC·Filed 1998·Granted Jun 26, 2001·38 cites·25 claims
- 2577US8116714B2Use of powerlines for transmission of high frequency signalsBLACK WILLIAM C·Filed 2008·Granted Feb 14, 2012·5 cites·20 claims
- 2677US7535962B1Method and apparatus for signaling characteristics of a transmitted signalXILINX INC·Filed 2008·Granted May 19, 2009·5 cites·5 claims
- 2777US7227375B2DAC based driver with selectable pre-emphasis signal levelsXILINX INC·Filed 2005·Granted Jun 5, 2007·6 cites·11 claims
- 2877US7188283B1Communication signal testing with a programmable logic deviceXILINX INC·Filed 2003·Granted Mar 6, 2007·21 cites·4 claims
- 2977US4633226AMultiple channel analog-to-digital convertersBLACK JR WILLIAM C·Filed 1984·Granted Dec 30, 1986·28 cites·37 claims
- 3077US4353105ACMOS Latch-up protection circuitNAT SEMICONDUCTOR CORP·Filed 1980·Granted Oct 5, 1982·28 cites·5 claims
- 3176US7830985B2Analog front-end having built-in equalization and applications thereofXILINX INC·Filed 2009·Granted Nov 9, 2010·5 cites·20 claims
- 3276US6768356B1Apparatus for and method of implementing time-interleaved architectureUNIV IOWA STATE RES FOUND INC·Filed 2000·Granted Jul 27, 2004·21 cites·25 claims
- 3375US6924693B1Current source self-biasing circuit and methodXILINX INC·Filed 2002·Granted Aug 2, 2005·22 cites·20 claims
- 3473US7280590B1Receiver termination network and application thereofXILINX INC·Filed 2003·Granted Oct 9, 2007·17 cites·22 claims
- 3572US8489086B2Use of powerlines for transmission of high frequency signalsBLACK WILLIAM C·Filed 2012·Granted Jul 16, 2013·2 cites·15 claims
- 3672US8483656B2Use of powerlines for transmission of high frequency signalsBLACK WILLIAM C·Filed 2012·Granted Jul 9, 2013·2 cites·18 claims
- 3771US7379517B1Method and apparatus for signaling characteristics of a transmitted signalXILINX INC·Filed 2003·Granted May 27, 2008·11 cites·8 claims
- 3870US7480347B2Analog front-end having built-in equalization and applications thereofXILINX INC·Filed 2003·Granted Jan 20, 2009·12 cites·12 claims
- 3969US7885320B1MGT/FPGA clock management systemXILINX INC·Filed 2003·Granted Feb 8, 2011·13 cites·17 claims
- 4069US7406118B2Programmable logic device including programmable multi-gigabit transceiversXILINX INC·Filed 2003·Granted Jul 29, 2008·15 cites·39 claims
- 4168US9391669B2Communication using multiple conductor cableBLACK WILLIAM C·Filed 2013·Granted Jul 12, 2016·2 cites·23 claims
- 4267US4977896AAnalysis of biological signals using data from arrays of sensorsBIOMAGNETIC TECH INC·Filed 1989·Granted Dec 18, 1990·76 cites·14 claims
- 4364US7142014B1High frequency XOR with peaked load stageXILINX INC·Filed 2004·Granted Nov 28, 2006·10 cites·23 claims
- 4462US7224951B1PMA RX in coarse loop for high speed samplingXILINX INC·Filed 2003·Granted May 29, 2007·9 cites·13 claims
- 4559US7376205B1Device and method for compensation of transmission line distortionXILINX INC·Filed 2001·Granted May 20, 2008·5 cites·16 claims
- 4657US7196545B1High frequency latchXILINX INC·Filed 2004·Granted Mar 27, 2007·7 cites·8 claims
- 4754US8436658B1Method and apparatus for signaling characteristics of a transmitted signalBLACK WILLIAM C·Filed 2008·Granted May 7, 2013·0 cites·20 claims
- 4853US8488654B1Spread spectrum communications using complex chip sequencesBLACK WILLIAM C·Filed 2009·Granted Jul 16, 2013·0 cites·17 claims
- 4951US4864274ARemote reading thermostatNORTHERN MICRODESIGN INC·Filed 1988·Granted Sep 5, 1989·17 cites·11 claims
- 5049US8391343B1PMA RX in coarse loop for high speed samplingCHUANG JERRY·Filed 2008·Granted Mar 5, 2013·2 cites·14 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when William C. Black files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →