Inventor · disambiguated record
John G. Mark
Also filed as: MARK JOHN · MARK JOHN G
48 granted patents·1 pending application·969 citations·filing 1977–2003
98Inventor score
Top patents by PatentIndex Score
49 records- 0191US4157495ANuclear magnetic resonance gyroLITTON SYSTEMS INC·Filed 1977·Granted Jun 5, 1979·76 cites·66 claims
- 0287US5485273ARing laser gyroscope enhanced resolution systemLITTON SYSTEMS INC·Filed 1991·Granted Jan 16, 1996·104 cites·19 claims
- 0386US4981359ARing laser gyroscope dither drive system and methodLITTON SYSTEMS INC·Filed 1989·Granted Jan 1, 1991·58 cites·20 claims
- 0483US6360602B1Method and apparatus reducing output noise in a digitally rebalanced accelerometerLITTON SYSTEMS INC·Filed 1999·Granted Mar 26, 2002·48 cites·18 claims
- 0582US5570304AMethod for thermal modeling and updating of bias errors in inertial navigation instrument outputsLITTON SYSTEMS INC·Filed 1994·Granted Oct 29, 1996·53 cites·30 claims
- 0681US6424419B1System and method for providing cavity length control of a ring laser gyroscopeNORTHROP GRUMMAN CORP·Filed 2000·Granted Jul 23, 2002·20 cites·20 claims
- 0776US5422817AStrapdown inertial navigation system using high orderLITTON SYSTEMS INC·Filed 1991·Granted Jun 6, 1995·41 cites·6 claims
- 0875US4634283AMethod and apparatus for reducing quantization error in laser gyro test data through high speed filteringLITTON SYSTEMS INC·Filed 1984·Granted Jan 6, 1987·23 cites·12 claims
- 0970US6298287B1System and method of compensating for pressure sensor errors and noise in inertial vertical loop dataLITTON SYSTEMS INC·Filed 2000·Granted Oct 2, 2001·28 cites·32 claims
- 1070US6266583B1System and method for improving the accuracy of pressure altitude determinations in an inertial navigation systemLITTON SYSTEMS INC·Filed 2000·Granted Jul 24, 2001·28 cites·24 claims
- 1169US5208653AMultioscillator ring laser gyroscope adaptive digitally controlled cavity length control systemLITTON SYSTEMS INC·Filed 1991·Granted May 4, 1993·26 cites·9 claims
- 1268US5682241AMethod and apparatus for overcoming cross-coupling in a fiber optic gyroscope employing overmodulationLITTON SYSTEMS INC·Filed 1996·Granted Oct 28, 1997·42 cites·31 claims
- 1367US6175807B1Temperature compensation method for strapdown inertial navigation systemsLITTON SYSTEMS INC·Filed 1999·Granted Jan 16, 2001·47 cites·45 claims
- 1461US5521555AUltra low noise optical receiverLITTON SYSTEMS INC·Filed 1994·Granted May 28, 1996·28 cites·19 claims
- 1560US5890093ASculling compensation in strapdown inertial navigation systemsLITTON SYSTEMS INC·Filed 1996·Granted Mar 30, 1999·28 cites·34 claims
- 1659US5189488AFiber optical gyroscope utilizing orthogonal sequencesLITTON SYSTEMS INC·Filed 1991·Granted Feb 23, 1993·21 cites·24 claims
- 1757US5074664AComputer generated cavity length control with automatic gain control for ring laser gyrosLITTON SYSTEMS INC·Filed 1991·Granted Dec 24, 1991·19 cites·11 claims
- 1856US6285954B1Compensation systemLITTON SYSTEMS INC·Filed 1999·Granted Sep 4, 2001·23 cites·30 claims
- 1956US4495475AResidual mode phase locked loopLITTON SYSTEMS INC·Filed 1982·Granted Jan 22, 1985·12 cites·11 claims
- 2055US6871561B2Isolator and assembly configurationNORTHROP GRUMMAN CORP·Filed 2002·Granted Mar 29, 2005·11 cites·13 claims
- 2154US6307631B1Pseudorandom bit sequence generatorLITTON SYSTEMS INC·Filed 2000·Granted Oct 23, 2001·8 cites·44 claims
- 2254US5896199AHigh efficiency magnetic shield for a fiber optic gyroscopeLITTON SYSTEMS INC·Filed 1997·Granted Apr 20, 1999·22 cites·25 claims
- 2351US6760111B1Digital phase modulatorLITEF GMBH·Filed 1998·Granted Jul 6, 2004·21 cites·13 claims
- 2449US6219616B1Method and apparatus for obtaining attitude updates in a strapdown inertial navigation systemLITTON SYSTEMS INC·Filed 1999·Granted Apr 17, 2001·21 cites·28 claims
- 2549US5751425AApparatus and method for detecting rotation rate, Faraday bias and cavity length in a ring laser gyroscopeLITTON SYSTEMS INC·Filed 1996·Granted May 12, 1998·18 cites·30 claims
- 2648US5828980AConing compensation in strapdown inertial navigation systemsLITTON SYSTEMS INC·Filed 1997·Granted Oct 27, 1998·17 cites·24 claims
- 2747US5822065AConically arranged fiber optic gyroscope coilsLITTON SYSTEMS INC·Filed 1997·Granted Oct 13, 1998·15 cites·19 claims
- 2846US5004344AApparatus and method for correcting ring laser gyroscope phase errors at turnaroundLITTON SYSTEMS INC·Filed 1989·Granted Apr 2, 1991·10 cites·22 claims
- 2945US6904377B2Method for measuring force-dependent gyroscope sensitivityNORTHROP GRUMMAN CORP·Filed 2003·Granted Jun 7, 2005·6 cites·16 claims
- 3045US6796724B2Sleeve for pig-tailing optical fiberLITTON SYSTEMS INC·Filed 2001·Granted Sep 28, 2004·3 cites·7 claims
- 3145US5684589ALoop controller for fiber optic gyro with distributed data processingLITTON SYSTEMS INC·Filed 1995·Granted Nov 4, 1997·15 cites·28 claims
- 3244US5883716ARate control loop for fiber optic gyroscopeLITTON SYSTEMS INC·Filed 1997·Granted Mar 16, 1999·13 cites·12 claims
- 3343US6940433B2Modulation method for signal crosstalk mitigation in electrostatically driven devicesNORTHROP GRUMMAN CORP·Filed 2003·Granted Sep 6, 2005·1 cites·20 claims
- 3442US5189487AMultioscillator ring laser gyroscope local oscillator-based output optics detection systemLITTON SYSTEMS INC·Filed 1991·Granted Feb 23, 1993·9 cites·9 claims
- 3541US6829763B1Partitioned executive structure for real-time programsLITTON SYSTEMS INC·Filed 2000·Granted Dec 7, 2004·1 cites·10 claims
- 3641US6538745B1Shock-tolerant multioscillator ring laser gyroLITTON SYSTEMS INC·Filed 2000·Granted Mar 25, 2003·3 cites·14 claims
- 3740US5325173AApparatus for compensating for change in laser gyro dither pickoff scale factorLITTON SYSTEMS INC·Filed 1990·Granted Jun 28, 1994·7 cites·14 claims
- 3839US5337143ALoop controller for multiplexed triaxial gyroLITTON SYSTEMS INC·Filed 1992·Granted Aug 9, 1994·11 cites·14 claims
- 3938US4875774AApparatus and method for determining ring laser gyroscope phase at turnaroundLITTON SYSTEMS INC·Filed 1988·Granted Oct 24, 1989·6 cites·18 claims
- 4037US5374990AActive magnetic field tuning for dispersion equalization of a multi-oscillatorLITTON SYSTEMS INC·Filed 1993·Granted Dec 20, 1994·5 cites·25 claims
- 4136US6317215B1Pseudorandom bit sequence generationLITTON SYSTEMS INC·Filed 2000·Granted Nov 13, 2001·0 cites·25 claims
- 4234US2001049710A1Partitioned executive structure for real-time programsFiled 2001·Application pending·0 cites
- 4333US6115125APseudorandom-bit-sequence modulated fiber-optic gyroLITTON SYSTEMS INC·Filed 1999·Granted Sep 5, 2000·5 cites·46 claims
- 4433US6008903AMethod for compensating for fringe visibility errors in a fiber-optic gyroLITTON SYSTEMS INC·Filed 1998·Granted Dec 28, 1999·5 cites·17 claims
- 4532US5999260AMethod and apparatus for initialization of a fiber optic gyroscopeLITTON SYSTEMS INC·Filed 1998·Granted Dec 7, 1999·4 cites·15 claims
- 4629US5604308AData interface for closed-loop accelerometerLITTON SYSTEMS INC·Filed 1996·Granted Feb 18, 1997·1 cites·16 claims
- 4729US5331401AMethod and apparatus for controlling dither in a multiple gyro systemLITTON SYSTEMS INC·Filed 1985·Granted Jul 19, 1994·4 cites·13 claims
- 4828US6130755AFiber-optic gyro utilizing pseudorandom-bit-sequence light modulationLITTON SYSTEMS INC·Filed 1999·Granted Oct 10, 2000·0 cites·15 claims
- 4928US5963323AMethod for improving the performance of fiber-optic gyros by calculating the bias from using a broadband sourceLITTON SYSTEMS INC·Filed 1998·Granted Oct 5, 1999·2 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →