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7458264 Generalized inertial measurement error reduction through multiple axis rotation during flight  
An inertial measurement unit is provided. The inertial measurement unit comprises two rotational axes, wherein a first of the two rotational axes is aligned nominally along a thrust axis and a...
7426878 Sensing device for measuring movement along linear/arc path  
A sensing device for measuring movement along linear/arc path, being adapted to adhere to a body, is capable of determining specific movements of the body, which comprises: at least a two-axis...
7406869 Movement detector having six degrees of freedom with three position sensors and method for the production of a sensor  
The movement detector having six degrees of freedom comprises a support on which three position sensors are arranged according to three orthogonal axes. Each sensor comprises a rigid body ( 3 ), a...
7395709 Fall detection device  
A fall detection device is provided, which accomplishes a fall judgment on acceleration by a simple calculation and improves uniformity of effective threshold value for the acceleration judgment as...
7395181 Motion tracking system  
Tracking a motion of a body by obtaining two types of measurements associated with the motion of the body, one of the types including acoustic measurement. An estimate of either an orientation or a...
7370532 RF communications method and system for laser ultrasonic testing  
A system including a processor, a high-energy density system linked to the processor, and a communicator linked to the processor. The communicator comprehensively integrates a plurality of hardware...
7325453 Activity monitoring  
An activity monitor is provided that can be cheaper and require lower power than existing activity monitors. A single output channel from a plurality of motion sensors is provided and monitored...
7299695 Acceleration sensor  
An acceleration sensor includes a weight and a vibrator that supports the weight at its center of gravity. When acceleration is applied to the weight, stress equivalent to the applied acceleration...
7290449 Physical quantity sensor having angular speed sensor and acceleration sensor  
A physical quantity sensor includes: a substrate; an angular speed sensor disposed on the substrate; and an acceleration sensor disposed on the substrate. The angular speed sensor includes an...
7275431 Vehicle mounted system for detecting objects  
A method for object detection using vehicle-mounted sensors is provided, the sensing ranges of which sensors overlap at least partially. In this context, signals of at least two sensors having...
7258012 Integrated monolithic tri-axial micromachined accelerometer  
A monolithic integrated 3-axis accelerometer chip includes a single crystal substrate, the substrate including at least one single crystal membrane layer portion. A single sensor microstructure...
7258011 Multiple axis accelerometer  
A sensor for measuring acceleration in three mutually orthogonal axes, X, Y and Z is disclosed. The sensor comprises a sensor subassembly. The sensor subassembly further comprises a base which is...
7248967 Autonomous velocity estimation and navigation  
Measurement of a spatial velocity vector in order to make determination of a geographical position possible. A spatial velocity meter includes an inertial measurement unit, a direction-sensing...
7237437 MEMS sensor systems and methods  
MEMS Sensor Systems and Methods are provided. In one embodiment, a method for producing a six degree of freedom inertial sensor is provided. The method comprises fabricating a first silicon wafer...
7237169 Cross-monitoring sensor system and method  
Cross-monitoring sensor system and method in which a plurality of sensors each having a sensing element, circuitry for processing signals from the sensing element, an output interface for...
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...
7231825 Accelerometer based tilt sensor and method for using same  
A tilt sensor and a method for the use of the tilt sensor to calculate the degree of tilt, whereby the tilt sensor has at least three accelerometers mounted to a base, the accelerometers are...
7210351 Micro accelerometer  
A micro accelerometer including a plurality of proof masses is provided to detect the acceleration of the first axis, the second axis and the third axis. The disclosed micro accelerometer has the...
7204145 Activity monitoring  
An activity monitor is provided that corrects for the effects of motion external to the entity being monitored. For example, the activity monitor can overcome the effects of vehicular travel.
7178401 Three axis accelerometer with variable axis sensitivity  
The accelerometer includes an inertial mass, a fixed base and at least one or more supports/sensors for supporting the mass from the base rendering the support system statically indeterminate. The...
7093488 Vibrating resonator inertial rotation sensor  
The inertial rotation sensor comprising a vibrating resonator associated with transducers defining a pair of control channels and a pair of detection channels, preferably comprises a single...
7081824 Track monitoring equipment  
The alignment of railway tracks may be monitored using an accelerometer ( 36 ) mounted on a bogie ( 24 ) of a railway vehicle to detect lateral accelerations, and a displacement transducer ( 38 )...
7040922 Multi-surface mounting member and electronic device  
An electrical interconnect apparatus has a mounting member with a plurality of sides. The mounting member is formed from an insulator as a cuboid. Moreover, the mounting member also may be formed...
7021140 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...
7003399 Gas jet control for inertial measurement unit  
An inertial navigation system is provided. The system includes a gas supported sensor block that is adapted to rotate in three dimensions in a near frictionless environment, a plurality of jet...
6981416 Multi-axis solid state accelerometer  
A multi-axis solid state accelerometer is made of electricity conductive material and is made by way of micro-machining. The main structure includes at least one proof mass connected to an anchor...
6980920 Embedded sensor system for tracking moving objects  
A method and apparatus describing a device for tracking moving objects or persons are taught. The invention is an embedded system using a series of sensors such as light sensors along a passageway...
6948367 Dual bridge angular and linear accelerometer  
An accelerometer includes an inertial platform maintaining an attitude in response to a platform stabilizing controller signal and defining a spin axis and a reference plane. An accelerometer,...
6925876 Multiple output inertial sensing device  
An inertial sensor includes a single sense element disposed upon a silicon wafer. The sense element is electrically connected to a plurality of signal conditioning circuits that generate output...
6923059 Angular motion measurement arrangement  
An angular motion measurement system disposed on a movable platform having a first and second section, the system comprising a first and second measurement arrangement and a processor arrangement....
6895818 Differential in-plane tunneling current sensor  
A sensor arrangement for measuring a displacement of a proof mass using a tunneling current includes a proof mass body suspended by micro-mechanical beams to permit a mass body movement, at least...
6895817 Dual bridge angular accelerometer  
An accelerometer includes an inertial platform maintaining an attitude in response to a platform stabilizing controller signal and defining a spin axis and a reference plane. An accelerometer,...
6845670 Single proof mass, 3 axis MEMS transducer  
A transducer is provided herein which comprises an unbalanced proof mass ( 51 ), and which is adapted to sense acceleration in at least two mutually orthogonal directions. The proof mass ( 51 ) has...
6836744 Portable system for analyzing human gait  
The invention is a portable gait analyzer comprising of at least one independent rear foot motion collection unit, at least one independent lower shank motion collection unit, plantar pressure...
6826960 Triaxial acceleration sensor  
A triaxial acceleration sensor comprises an inertial mass suspended in three orthogonal directions by support members in a statically determinate structure. Acceleration applied to the inertial...
6810738 Acceleration measuring apparatus with calibration function  
An acceleration measuring apparatus capable of calibrating its output with a zero-point in the state of no acceleration applied as well as sensitivity. An acceleration sensor detects each component...
6803698 Acceleration sensor  
An acceleration sensor including a bimorph type acceleration detection element including a pair of surface acoustic wave resonators laminated to each other with the back surface of one resonator...
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...
6789425 Acceleration-sensing system  
An acceleration-sensing system for sensing acceleration in a three-dimensional manner is proposed. The acceleration-sensing system includes a first acceleration-sensing unit for sensing...
6784658 Signal generator for multi-cylinder internal combustion engine and rotation information detector using signal generator  
A signal generator for an internal combustion engine for obtaining precise information on a rotational direction of the engine when the engine runs at extremely low speed, comprising: a rotor...
6701788 Multiple output inertial sensing device  
An inertial sensor includes a plurality of sense elements disposed upon a silicon wafer. Each of the sense elements senses a different inertia range. The sense elements are electrically connected...
6647787 Acceleration recorder  
The acceleration recorder provides a three dimensional mechanical record of the acceleration sustained in a collision or impact. The recorder converts impact into a rotational movement of an...
6626039 Electrically decoupled silicon gyroscope  
An oscillatory gyroscope is described with decoupled drive and sense oscillators and reduced cross-axis sensitivity. The gyroscope is fabricated using a plasma micromachining process on standard...
6609037 Gimbal pointing vector stabilization control system and method  
A hybrid stabilization system for isolating a pointing vector of a gimbal from the motion of a vehicle base is provided. The hybrid stabilization control system includes a rate feedback loop...
6601011 Apparatus for measuring angular velocity variation rate of rotary axle  
In an apparatus for measuring an angular velocity variation rate of a rotary axle, an approximately circular disc shaped plate is attached approximately concentrically around the rotary axle, in...
6575032 Silicon flexure suspension for single degree or freedom floated gyroscope  
A suspension for a gyroscopic float assembly in a floating gyroscope system comprises a pair of flexures that each have an outer rim and a plurality of flexure beams extending from the outer rim. A...
6568268 Multi-axis accelerometer comprising a mass suspended by springs above an optical sensor  
A multi-axis accelerometer is disclosed comprising at least one optical sensor for generating a sensor signal in response to light illuminating the optical sensor, a mask positioned over the...
6513381 Motion analysis system  
A device comprised of at least a pair of accelerometers and a tilt sensor mounted in fixed relation to a datum plane defining surface (sole of a shoe) may be used for extracting kinematic variables...
6496779 Inertial measurement unit with magnetometer for detecting stationarity  
A device for measuring a velocity and/or position of a body includes a magnetometer and a measurement unit. The magnetometer is configured to sense a magnetic flux to which the body is exposed. The...
6484577 Accelerometer signal processor comprising variable oscillators and counters  
An accelerometer signal processor is disclosed comprising a sensor for generating A, B, C and D sensor signals in response to a sensor excitation. Variable oscillators convert the sensor signals...
Matches 1 - 50 out of 353 1 2 3 4 5 6 7 8 >