Inventor · disambiguated record
Ralph A. Bergh
Also filed as: BERGH RALPH · BERGH RALPH A
28 granted patents·1 pending application·1,180 citations·filing 1980–2013
97Inventor score
Top patents by PatentIndex Score
29 records- 0197US5153676AApparatus and method for reducing phase errors in an interferometerUNIV LELAND STANFORD JUNIOR·Filed 1991·Granted Oct 6, 1992·252 cites·19 claims
- 0295US4493528AFiber optic directional couplerUNIV LELAND STANFORD JUNIOR·Filed 1980·Granted Jan 15, 1985·105 cites·10 claims
- 0394US4536058AMethod of manufacturing a fiber optic directional couplerUNIV LELAND STANFORD JUNIOR·Filed 1981·Granted Aug 20, 1985·86 cites·22 claims
- 0492US4410275AFiber optic rotation sensorUNIV LELAND STANFORD JUNIOR·Filed 1981·Granted Oct 18, 1983·60 cites·6 claims
- 0592US4386822APolarizer and methodUNIV LELAND STANFORD JUNIOR·Filed 1980·Granted Jun 7, 1983·76 cites·13 claims
- 0686US4603940AFiber optic dye amplifierUNIV LELAND STANFORD JUNIOR·Filed 1983·Granted Aug 5, 1986·31 cites·30 claims
- 0785US4615582AMagneto-optic rotator for providing additive Faraday rotations in a loop of optical fiberUNIV LELAND STANFORD JUNIOR·Filed 1981·Granted Oct 7, 1986·56 cites·67 claims
- 0884US4671658AFiber optic rotation sensor utilizing a magnetic shield and an optical isolatorUNIV LELAND STANFORD JUNIOR·Filed 1981·Granted Jun 9, 1987·37 cites·3 claims
- 0984US4601541AFiber optic directional couplerUNIV LELAND STANFORD JUNIOR·Filed 1983·Granted Jul 22, 1986·58 cites·2 claims
- 1083US4733938AMagneto-optic rotatorUNIV LELAND STANFORD JUNIOR·Filed 1986·Granted Mar 29, 1988·42 cites·2 claims
- 1180US4773759AInterferometer with Kerr effect compensationUNIV LELAND STANFORD JUNIOR·Filed 1987·Granted Sep 27, 1988·49 cites·48 claims
- 1280US4560234AFiber optic switchable couplerUNIV LELAND STANFORD JUNIOR·Filed 1983·Granted Dec 24, 1985·34 cites·17 claims
- 1370US6046810AKerr effect compensator for a fiber optic gyroscopeHONEYWELL INC·Filed 1998·Granted Apr 4, 2000·45 cites·49 claims
- 1469US8497994B2Interferometer employing a multi-waveguide optical loop path and fiber optic rotation rate sensor employing sameBERGH RALPH A·Filed 2009·Granted Jul 30, 2013·5 cites·5 claims
- 1569US5999304AFiber optic gyroscope with deadband error reductionHONEYWELL INC·Filed 1997·Granted Dec 7, 1999·50 cites·21 claims
- 1668US8610995B2Occasional calibration phase-difference modulation for sagnac interferometerBERGH RALPH A·Filed 2010·Granted Dec 17, 2013·3 cites·37 claims
- 1768US7505139B2Signal processing for a Sagnac interferometerBERGH RALPH A·Filed 2007·Granted Mar 17, 2009·6 cites·32 claims
- 1865US5854678AThree-axis fiber optic gyroscope having a single source and multi-coupler configurationHONEYWELL INC·Filed 1996·Granted Dec 29, 1998·38 cites·22 claims
- 1963US5946097AVibration rectification error reducer for fiber optic gyroscopeHONEYWELL INC·Filed 1997·Granted Aug 31, 1999·34 cites·19 claims
- 2061US5602642AMagnetically insensitive fiber optic rotation sensorHONEYWELL INC·Filed 1995·Granted Feb 11, 1997·31 cites·20 claims
- 2160US9103676B2Interferometer employing a multi-waveguide optical loop path and fiber optic rotation rate sensor employing sameBERGH RALPH A·Filed 2013·Granted Aug 11, 2015·1 cites·15 claims
- 2259US5781300ABackscatter error reducer for interferometric fiber optic gyroscopeHONEYWELL INC·Filed 1996·Granted Jul 14, 1998·29 cites·19 claims
- 2359US4869592AMethod and apparatus for obtaining a digital measure of absolute rotationBERGH RALPH A·Filed 1988·Granted Sep 26, 1989·18 cites·44 claims
- 2458US9518827B2Method and apparatus for multiplexing multiple Sagnac interferometers with single input for source lightBERGH RALPH A·Filed 2011·Granted Dec 13, 2016·1 cites·35 claims
- 2543US5506923AApparatus and method for trimming of fiber optic windingHONEYWELL INC·Filed 1994·Granted Apr 9, 1996·10 cites·24 claims
- 2642US5475774AOptical fiber sensor coil using reverse quadrupoles and method of winding sameHONEYWELL INC·Filed 1994·Granted Dec 12, 1995·9 cites·26 claims
- 2741US5120130AApparatus and method for reducing phase errors in an interferometerUNIV LELAND STANFORD JUNIOR·Filed 1989·Granted Jun 9, 1992·7 cites·15 claims
- 2840US2013050709A1Sagnac interferometer with bundle-fiber coilBERGH RALPH A·Filed 2011·Application pending·0 cites
- 2935US5528715ATrimming of fiber optic winding and method of achieving sameHONEYWELL INC·Filed 1995·Granted Jun 18, 1996·7 cites·36 claims
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