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| Number | Title | Issue Date |
| 8156806 | Inertial measurement unit for spin-stabilized aerial vehicles, and method of providing guidance information using same An inertial measurement unit (IMU) for a spinning aerial vehicle that spins about a spin axis having a substrate defining a plane, the substrate fixed to the vehicle with the plane essentially orthogonal to the spin axis so that the substrate spins about the spin ax... | 04/17/2012 |
| 7882740 | Sensor for detecting acceleration and angular velocity Static and dynamic acceleration as well as static and dynamic angular velocity are detected with a simple structure. An acceleration detecting section includes a weight body, a pedestal around the weight body, flexible plate-like bridge portions, and piezoresistive ... | 02/08/2011 |
| 7437931 | Medical application for no-motion sensor A sensor unit to detect a stillness event, the sensor unit including a gyroscope attached to a monitored person, a micro-controller communicatively coupled to the gyroscope, and a memory communicatively coupled to receive and to store the angular velocity data with ... | 10/21/2008 |
| 7370531 | Detection circuits, detection method and systems of measuring physical quantities A detection circuit 30 has a unit 30a for inputting a signal to be detected by synchronized wave detection, a unit 30b for inputting a standard signal for the signal to be detected and a unit 30c for inputting an offs... | 05/13/2008 |
| 7337650 | System and method for aligning sensors on a vehicle A vehicle sensor system consisting of video, radar, ultrasonic or laser sensors, oriented to obtain a 360 degree view around the vehicle for the purpose of developing a situation or scene awareness. The sensors may or may not have overlapping field of views, or supp... | 03/04/2008 |
| 7331212 | Sensor module A sensor module is provided having a compact housing containing a sensor. A low temperature co-fired ceramic substrate is located on the housing. The sensor and signal processing circuitry are located on the low temperature co-fired ceramic substrate. The sensor mod... | 02/19/2008 |
| 7325454 | Acceleration/angular velocity sensor unit A longitudinal G sensor 51 and a roll rate sensor 54 are mounted onto a back surface 61b of a substrate 61 in parallel with an X-axis and a lateral G sensor 52 and a pitch rate sensor 55 are mounted thereon in paralle... | 02/05/2008 |
| 7289898 | Apparatus and method for measuring speed of a moving object An apparatus and method for measuring the speed of a moving object is provided. A first acceleration along the moving direction of the moving object and a second acceleration along the lateral direction of the moving object are measured. A first angular speed along ... | 10/30/2007 |
| 7269494 | Method and system for recognizing the sign of the velocity of a vehicle and for estimating the road slope A method of estimating the slope of a road surface on which is positioned a motor vehicle. The slope is determined by measuring the velocity and longitudinal acceleration of the vehicle by means of a mathematical model based on the relation Ax={dot over (... | 09/11/2007 |
| 7243544 | Passive and wireless acoustic wave accelerometer An acoustic wave acceleration sensor comprises an acoustic wave device including a plate that functions as a propagation medium and at least one interdigital transducer configured upon the plate. One or more antennas can be integrated with the acoustic wave device, ... | 07/17/2007 |
| 7243561 | Sensor device A sensor unit includes a pressure sensor, an acceleration sensor and a signal-processing circuit, which are disposed on the bottom surface of a lead to form a line in the longitudinal direction of the sensor unit. The pressure sensor and the acceleration sensor are ... | 07/17/2007 |
| 7237446 | System and method for measuring gait kinematics information A system for measuring gait kinematics information during exercise of a subject comprising a fixing member adapted for fixing onto the trunk of the body of the subject; an acceleration sensor attached to the fixing member for sensing the vertical acceleration of the... | 07/03/2007 |
| 7234351 | Electronic measurement of the motion of a moving body of sports equipment An application of rate gyros and accelerometers allows electronic measurement of the motion of a rigid or semi-rigid body, such as a body associated with sporting equipment including a fly rod during casting, a baseball bat, a tennis racquet or a golf club during sw... | 06/26/2007 |
| 7155975 | Composite sensor for detecting angular velocity and acceleration A high-reliability complex sensor is protected against vibration and electromagnetic wave noise from outside. A shield case is provided with a power conjunction terminal, GND conjunction terminal, angular velocity conjunction terminal, X axis acceleration conjunctio... | 01/02/2007 |
| 7028546 | Data recorder A compact data recorder includes angular rate sensors for monitoring rotational movement about three axes. Three linear accelerometers, or one triaxial linear accelerometer, track linear movement along the same three axes. A processor and memory record outputs from ... | 04/18/2006 |
| 7004025 | Composite sensor device and method of producing the same A plane vibrator of an angular velocity sensor and a movable member of an acceleration sensor are provided in a spaced floating state on the same substrate. A lid is formed so as to cover and be spaced from the upper side of the plane vibrator and the movable member... | 02/28/2006 |
| 6792819 | Method and system for analyzing motion transferred to a subject on a sleeping surface A method and system for analyzing the transfer of motion to a subject on a sleeping surface. A mattress is positioned on a frame, and a subject is positioned on the mattress. A sensor is placed in communication with the subject. The surface adjacent the subject is m... | 09/21/2004 |
| 6792803 | Method to improve estimation of vehicle longitudinal velocity A method for estimating the longitudinal velocity of a vehicle generally comprises the steps of determining whether the vehicle has a lateral acceleration greater than a predetermined value, and then setting the estimate of longitudinal velocity based on the velocit... | 09/21/2004 |
| 6722198 | External-force detecting sensor An external-force detecting sensor includes a sensor unit for commonly detecting angular velocity and acceleration; an angular-velocity/acceleration mix signal outputting unit for outputting an angular-velocity/acceleration mix signal comprised of an angular-velocit... | 04/20/2004 |
| 6651500 | Micromachined silicon tuned counterbalanced accelerometer-gyro with quadrature nulling An integrated rate and accelerometer sensor includes two counter vibrating tuned accelerometers formed in a single substantially planar silicon body to form the sensing element. The two vibrating accelerometers are interleaved in a manner that places thei... | 11/25/2003 |
| 6481295 | Method and system for monitoring peak compressive and tensile process severity levels of a press machine using acceleration data A system for monitoring the operation of a press machine employs a sensor to measure the peak acceleration levels of a slide assembly. The sensor measurement data represents peak load levels being developed within the press machine. A data means provides ... | 11/19/2002 |
| 6188469 | Laser apparatus and method for speed measurement An apparatus for measuring the speed of an object includes a first laser source for emitting a first laser plane at an intended path, and a second laser source for emitting a second laser plane at the intended path, with the second laser source positioned... | 02/13/2001 |
| 5960377 | Speed calculation derived from distance pulses utilizing acceleration The present invention provides a system which calculates vehicle speeds from distance pulses utilizing vehicle acceleration. More particularly, the present invention calculates vehicle speed through a system comprising a speed input task and a speed outpu... | 09/28/1999 |
| 5837998 | Two-dimensional fiber optic acceleration and vibration sensor A simple, novel and reliable two-dimensional, cantilever based fiber optic acceleration and vibration sensor, able to measure constant and/or variable acceleration, velocity, displacement, and frequency spectrum simultaneously in two perpendicular directi... | 11/17/1998 |
| 5646346 | Multi-axial angular velocity sensor An angular velocity sensor has a flexible substrate and an opposed, fixed substrate supported at their peripheries by a sensor casing. An oscillator is fixed on the lower surface of the flexible substrate. Five lower electrodes are formed on the upper sur... | 07/08/1997 |
| 5456112 | High accuracy laser accelerometer A high accuracy laser accelerometer has a differential pathlength element having an outer annulus and a combined acceleration sensing proof mass with a laser mirror, a closed cavity including a cathode, anode and a movable pathlength control mirror, a len... | 10/10/1995 |
| 5339690 | Apparatus for measuring the rate of rotation and linear accelleration of a moving body in two perpendicular axes An apparatus for measuring the rate of rotation and linear acceleration of a moving body in two perpendicular axis (X and Y). The rate of rotation is determined by measuring the force resulting from the Coriolus effect and the linear acceleration is deter... | 08/23/1994 |
| 5168756 | Dithering coriolis rate and acceleration sensor utilizing a permanent magnet A sensor (10) for measuring angular rate and linear acceleration of a body, in which first and second rotors (30, 31), each carrying a plurality of accelerometers (44, 49), are mounted for counter-rotating dithering motion on opposite sides of a base plat... | 12/08/1992 |
| 5166610 | Dual range speed indicator with acceleration display A solid state speed indicator for railroad locomotives is provided with a plurality of indications in addition to speed. These include an acceleration indicator and an overspeed indicator. In addition, the speed indicator is provided with a dual range spe... | 11/24/1992 |
| 5130937 | Method and apparatus for storing velocity data A method and apparatus for determining a change in velocity of a body following a power disruptive event. An accelerometer (10, 50) includes quartz crystals (16 and 18, 60 and 62), which produce output signals indicative of the acceleration to which a bod... | 07/14/1992 |
| 4784237 | Apparatus for automatic release of passenger protection devices in the event of an accident An apparatus for the automatic release of passenger protection devices in motor vehicles in the event of an accident has a sensor (35) having a mass (10) secured outside the center of mass (11). This mass (10) generates a comparably high torque in the sus... | 11/15/1988 |
| 4603582 | Inertial dynamometer system and method for measuring and indicating gross horsepower The Inertial Dynamometer System measures and indicates the gross horsepower being produced by a vehicle's prime mover at any instant, accounting for aerodynamic, frictional and viscous drag in addition to gravitational and inertial acceleration factors. T... | 08/05/1986 |
| 4222702 | Deceleration sensitive air tool shutoff A shutoff mechanism for a pneumatic tool such as a nut runner senses both the instantaneous speed and the instantaneous rate of change of speed of the drive components of the tool. The mechanism controls the flow of air to the motor and terminates such fl... | 09/16/1980 |
| 4065975 | Apparatus for measuring the slip of locomotive wheels and preventing sliding thereof Apparatus provided for measuring slippage of locomotive wheels and for preventing excessive sliding of the wheels and which produces a control signal for governing the locomotive speed uses as a basic criteria the variation in velocity between the transla... | 01/03/1978 |
| 3988673 | Device for measuring the stopping time of working machines A device for measuring the stopping time of working machines is provided with first and second switches for synchronically breaking the current to the working machine and starting a time meter, and a third switch for stopping the time meter when the worki... | 10/26/1976 |
| 3974701 | Spin coupled, angular rate sensitive inertial sensors with optional acceleration sensing capability and method of fabricating same Spin coupled angular rate sensitive inertial sensors of the tuned suspension system type, and method of fabricating such sensors whereby the twice spin frequency linear and angular vibration sensitivity characteristic of tuned sensors may be eliminated. T... | 08/17/1976 |
