Inventor · disambiguated record
Larry Leeroy Tretter
Also filed as: TRETTER LARRY L · TRETTER LARRY LEEROY
41 granted patents·3 pending applications·288 citations·filing 1988–2023
97Inventor score
Top patents by PatentIndex Score
44 records- 0195US8587902B2Device select system for multi-device electronic systemBISKEBORN ROBERT GLENN·Filed 2008·Granted Nov 19, 2013·25 cites·8 claims
- 0292US7924524B2System and method for generating an amplitude error signal in a magnetic tape recording channelIBM·Filed 2009·Granted Apr 12, 2011·13 cites·23 claims
- 0391US7130143B1Apparatus, system, and method for measuring magnetoresistive head resistanceIBM·Filed 2005·Granted Oct 31, 2006·12 cites·19 claims
- 0490US6940682B2Data read transducers for determining lateral position of a tape head with respect to longitudinal servo bands of magnetic tapeIBM·Filed 2003·Granted Sep 6, 2005·29 cites·30 claims
- 0587US8159770B2Apparatus and method to transfer data to and from a sequential information storage mediumBUI NHAN XUAN·Filed 2009·Granted Apr 17, 2012·6 cites·20 claims
- 0686US8044816B2Apparatus, system, and method for detecting the formation of a short between a magnetoresistive head and a head substrateIBM·Filed 2007·Granted Oct 25, 2011·11 cites·20 claims
- 0786US7982992B2Dual gain control for magnetic data storage systemIBM·Filed 2009·Granted Jul 19, 2011·5 cites·24 claims
- 0885US7223922B2ESD dissipative coating on cablesIBM·Filed 2004·Granted May 29, 2007·22 cites·16 claims
- 0983US7742252B2Apparatus, system, and method for controlling recording head substrate bias voltageIBM·Filed 2007·Granted Jun 22, 2010·6 cites·19 claims
- 1079US9330689B1Write driver DC resistance calibrationIBM·Filed 2015·Granted May 3, 2016·4 cites·20 claims
- 1178US6952316B2Open head detection circuit and method in a voltage or current mode driverIBM·Filed 2002·Granted Oct 4, 2005·12 cites·17 claims
- 1278US4812687ADual direction integrating delay circuitIBM·Filed 1988·Granted Mar 14, 1989·24 cites·5 claims
- 1377US9734861B1In-circuit calibration method of anti-aliasing filterIBM·Filed 2016·Granted Aug 15, 2017·3 cites·20 claims
- 1476US9349387B1Detection of open write heads and/or cables in tape drivesIBM·Filed 2015·Granted May 24, 2016·3 cites·20 claims
- 1575US8254048B2Dual gain control for magnetic data storage systemDAHLE JACOB LEE·Filed 2011·Granted Aug 28, 2012·3 cites·16 claims
- 1674US7688536B2Variable power write driver circuitIBM·Filed 2007·Granted Mar 30, 2010·2 cites·23 claims
- 1773US8879209B2Device select system for multi-device electronic systemIBM·Filed 2013·Granted Nov 4, 2014·2 cites·15 claims
- 1872US9899056B1In-circuit calibration of anti-aliasing filterIBM·Filed 2017·Granted Feb 20, 2018·2 cites·20 claims
- 1972US7729072B2Open write-head-cable test method and detectorIBM·Filed 2007·Granted Jun 1, 2010·6 cites·23 claims
- 2069US8130021B2Gain control with multiple integratorsDAHLE JACOB LEE·Filed 2009·Granted Mar 6, 2012·1 cites·15 claims
- 2169US5373253AMonolithic current mirror circuit employing voltage feedback for β-independent dynamic rangeIBM·Filed 1993·Granted Dec 13, 1994·22 cites·13 claims
- 2267US11842829B2Flexible electrical cable with four copper layersIBM·Filed 2022·Granted Dec 12, 2023·0 cites·19 claims
- 2367US10229711B2In-circuit calibration of anti-aliasing filterIBM·Filed 2017·Granted Mar 12, 2019·1 cites·20 claims
- 2465US4937469ASwitched current mode driver in CMOS with short circuit protectionIBM·Filed 1988·Granted Jun 26, 1990·15 cites·2 claims
- 2564US6320713B1Ratio method for measurement of MR read head resistanceIBM·Filed 1999·Granted Nov 20, 2001·17 cites·22 claims
- 2662US8107181B2Apparatus, system, and method for measuring magnetoresistive head resistanceTRETTER LARRY LEEROY·Filed 2006·Granted Jan 31, 2012·1 cites·16 claims
- 2758US7933089B2Track-adapted data clockingIBM·Filed 2008·Granted Apr 26, 2011·0 cites·20 claims
- 2858US6680809B1Write head current damping with dynamic couplingIBM·Filed 2000·Granted Jan 20, 2004·3 cites·13 claims
- 2957US6101052AH configuration write driver circuit with integral component fault detectionIBM·Filed 1993·Granted Aug 8, 2000·11 cites·6 claims
- 3057US5291069ABipolar H write driverIBM·Filed 1992·Granted Mar 1, 1994·14 cites·9 claims
- 3155US10418061B2In-circuit calibration of anti-aliasing filterIBM·Filed 2019·Granted Sep 17, 2019·0 cites·16 claims
- 3254US6882491B2Dual mode write driver providing both voltage and current mode operationIBM·Filed 2002·Granted Apr 19, 2005·2 cites·20 claims
- 3354US2007139853A1Esd dissipative coating on cablesIBM·Filed 2007·Application pending·0 cites
- 3453US8872573B2Gain control with multiple integratorsDAHLE JACOB LEE·Filed 2012·Granted Oct 28, 2014·0 cites·10 claims
- 3552US2012200952A1Apparatus and Method to Transfer Data to and from a Sequential Information Storage MediumBUI NHAN XUAN·Filed 2012·Application pending·0 cites
- 3650US7039540B1Apparatus, system, and method for testing an analog to digital converterIBM·Filed 2004·Granted May 2, 2006·5 cites·30 claims
- 3748US9741365B2Write driver DC resistance calibrationIBM·Filed 2016·Granted Aug 22, 2017·0 cites·20 claims
- 3848US9576594B1Detection of open write heads and/or cables in tape drivesIBM·Filed 2016·Granted Feb 21, 2017·0 cites·20 claims
- 3947US11978489B1Direct measurement of magnetoresistive head resistance in a storage systemIBM·Filed 2023·Granted May 7, 2024·0 cites·20 claims
- 4046US2007279808A1Sensing mechanism for reading magnetic storage mediumIBEN ICKO E T·Filed 2006·Application pending·0 cites
- 4142US8213120B2Flexible cable comprising liquid crystal polymerSHAHIDI SASSAN K·Filed 2007·Granted Jul 3, 2012·0 cites·20 claims
- 4242US7075344B2Measurement of the write current of a current mode write driver while engaged in the writing processIBM·Filed 2002·Granted Jul 11, 2006·0 cites·14 claims
- 4341US6882485B2Method and system to measure the write current of a current mode write driver in a direct wayIBM·Filed 2002·Granted Apr 19, 2005·0 cites·20 claims
- 4433US6928581B1Innovative bypass circuit for circuit testing and modificationIBM·Filed 1999·Granted Aug 9, 2005·6 cites·1 claims
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