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Class Information
Number: 250/231.12
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Light valve (e.g., iris diaphragm) > Actuated by dynamic external physical quantity > Gyroscopes
Description: Subject matter wherein gyroscopic movements or conditions are the active external physical quantities sensed.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7377435 |
Optical encoder |
May. 27, 2008 |
| 6603557 |
Ring laser gyro having ring resonator semiconductor lasers and driving method thereof |
Aug. 5, 2003 |
| 6545257 |
Thermal-electrically cooled photodetector |
Apr. 8, 2003 |
| 6465771 |
Angular velocity detector and apparatus having angular velocity detector |
Oct. 15, 2002 |
| 6448552 |
Gyro |
Sep. 10, 2002 |
| 6441366 |
Sealed fiber optic gyroscope assembly |
Aug. 27, 2002 |
| 6373048 |
Method and device for stabilizing the scale factor of a fiber optic gyroscope |
Apr. 16, 2002 |
| 6259089 |
Integrated optics rotation sensor |
Jul. 10, 2001 |
| 6198094 |
Nested fiber optic gyro system |
Mar. 6, 2001 |
| 5801377 |
Reducing dither induced errors from path length control resets in a ring laser gyro |
Sep. 1, 1998 |
| 5748181 |
Cursor controlling apparatus and its direction detection method |
May. 5, 1998 |
| 5642106 |
Visual incremental turn detector |
Jun. 24, 1997 |
| 5545892 |
Gyro sensor coil with low-friction hub interface |
Aug. 13, 1996 |
| 5495759 |
Detecting circuit which suppresses a drift signal |
Mar. 5, 1996 |
| 5412204 |
Method for detecting an output of a gyroscope with dual synchronized detection circuit and dual smoothing circuit |
May. 2, 1995 |
| 5223709 |
Spherical optical encoder for detecting the position and motion about three mutual orthogonal axes |
Jun. 29, 1993 |
| 5210408 |
Rotatable electro-optic measurement tapping device |
May. 11, 1993 |
| 5138154 |
Shaft angle encoder with rotating off-axis interference pattern |
Aug. 11, 1992 |
| 5134283 |
Means for detecting a tilting state with a light emitting element on a movable member |
Jul. 28, 1992 |
| 5103089 |
Angular displacement detecting device |
Apr. 7, 1992 |
| 5031988 |
Fiber optic gyro |
Jul. 16, 1991 |
| 4930365 |
Two axis rate gyroscope |
Jun. 5, 1990 |
| 4920259 |
Apparatus for producing a phase insensitive index pulse for motion encoders |
Apr. 24, 1990 |
| 4914291 |
Gimbal angle detector |
Apr. 3, 1990 |
| 4862050 |
Optical commutation and tilt sensing for a permanent magnet gyro |
Aug. 29, 1989 |
| 4814604 |
Opto-electronic method and system for remote detection of physical magnitudes |
Mar. 21, 1989 |
| 4743116 |
Microbending optical fiber accelerometer and gyroscope |
May. 10, 1988 |
| 4662751 |
Closed loop fiber optic rotation sensor |
May. 5, 1987 |
| 4610172 |
Induction feedback stabilized suspension gyroscope |
Sep. 9, 1986 |
| 4488041 |
Device for measuring the coordinates of a rotating sphere and process for manufacturing part of this device |
Dec. 11, 1984 |
| 4371784 |
Thin film plane-polarized intensity pickoff |
Feb. 1, 1983 |
| 4361760 |
Two-degree-of-freedom gyro with radiant energy pickoffs |
Nov. 30, 1982 |
| 4339959 |
Rate gyroscope having an optical sensor system |
Jul. 20, 1982 |
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