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| Number | Title | Issue Date |
| 6498980 | Method for determining a position of a rotating shaft A method for determining a position of a rotating shaft and, more particularly, for determining a sync position of an engine crankshaft or engine camshaft. The method includes sequentially measuring consecutive time periods generated in response to rotati... | 12/24/2002 |
| 6493651 | Method and system for determining magnetic attitude A system which derives the attitude of a body as it rotates and travels through the earth's magnetic field. At least one magnetometer is placed in the body and provides an output signal during flight of the body. The zero crossings of the output signal ar... | 12/10/2002 |
| 6492911 | Capacitive displacement encoder A capacitive motion encoder, for sensing the position of a moving object relative to a stationary object, includes at least one stationary element, coupled to the stationary object and a moving element, coupled to the moving object and in proximity to the... | 12/10/2002 |
| 6490540 | Method and apparatus for measuring driveline angles A system measures multiple operational angles of a driveline assembly and compares the signals to each other to determine whether the angles and the respective driveline components are properly balanced. Different types of sensor assemblies can be used to... | 12/03/2002 |
| 6484120 | Position detection data generating method and apparatus based on phase shift principle First A.C. output signal sin(ω+θ) having an electric phase angle shifted in a positive direction in accordance with a position-to-be-detected is produced along with a second A.C. output signal sin(ω-θ) having an electric phase angle shifted in a negat... | 11/19/2002 |
| 6473715 | Luffing angle measurement system The luffing angle measurement system includes a non-contact distance measuring device mounted on the nose section of a first boom. The non-contact distance measuring device measures either a distance to a second boom pivotally connected to the first boom ... | 10/29/2002 |
| 6473717 | Method and apparatus for evaluating a movement pattern A method for evaluating a head and trunk movement pattern of a subject includes configuring a plurality of markers to move together with the body of a subject. For each of the plurality of markers, a locus curve in three-dimensional space is detected as a... | 10/29/2002 |
| 6470292 | Position detection apparatus A position detector detects the position of a detector section relative to a record medium having recorded thereon a periodic position signal. The detector section has two detectors that produce first and second detection signals that are polar converted ... | 10/22/2002 |
| 6424928 | Absolute position detector interpreting abnormal states An absolute position detector that interprets, rather than avoids, abnormal sensory states. Different combinations of sensors in an array are activated as a marker travels along a path. The current activation/deactivation state of the array is converted i... | 07/23/2002 |
| 6421622 | Dynamic attitude measurement sensor and method A method and system senses the attitude of an accelerating object. Attitude sensing is accomplished by measuring acceleration in three orthogonal axes and measuring angular rate about each such axis to compute attitude accurately relative to a vertical ax... | 07/16/2002 |
| 6418396 | Method for operating a position measuring system and position measuring system for the purpose A method for operating a position measuring system and a suitable position measuring system in which after the onset of measurement incremental signals relating to the relative position of two parts movable relative to one another are generated by the pos... | 07/09/2002 |
| 6401052 | Determination method for a position signal and/or for correction values for measurement signals In incremental detectors, measurement signals thereof are first corrected in graduation-specific fashion with respect to amplitude offsets, and phase displacement, and a rough angle is determined. The residual error of the rough angle is fine-corrected vi... | 06/04/2002 |
| 6377906 | Attitude estimation in tiltable body using modified quaternion data representation The attitude of a tiltable body is tracked and controlled on the basis of signals outputted from gyros and tilt sensors. The signals outputted from the gyros are transformed and integrated to produce estimated position information in the form of a modifie... | 04/23/2002 |
| 6366078 | Inductive angle sensor with a plurality of receiving coils and an evaluation circuit An inductive angle sensor with an exciting coil and several receiving coils displaced with respect to each other by a predetermined angle. A rotor element, a position of which is to be determined by the angle sensor, has an inductive coupling element that... | 04/02/2002 |
| 6356855 | Moving body detection system To provide a moving body detection system capable of reliably receiving response signals and discerning the arrangement of opposing moving bodies. A moving body detection system for transmitting and receiving signals in such a manner that moving bodies ca... | 03/12/2002 |
| 6341013 | Method and device for regulating the attitude of a motor vehicle A method for regulating the attitude of a motor vehicle by measuring the characteristic angles of the wheels, includes the following operations: obtaining at least one pair of images of each moving wheel while the vehicle is being positioned on the measur... | 01/22/2002 |
| 6338027 | Canopy modification using computer modelling A method and system for determining canopy coverage to a golf green to assist in increasing sunlight exposure of the green. The system allows users to enter data regarding the golf green, surrounding foliage, and other topographical and man-made features ... | 01/08/2002 |
| 6330522 | Rotational angle detector and method A rotor is fixed to a steering shaft to rotate with the steering shaft, and outer and inner slits are formed along different circles on the rotor. Outer and inner sensors, which detect the presence or absence of the slits, generate reflective codes and ar... | 12/11/2001 |
| 6327548 | Method of adjusting wheel alignment angles A computer-assisted method for adjusting alignment angles of a wheel attached to a wheel mounting structure of a vehicle. This method includes measuring a baseline wheel alignment angle with respect to a rim or hub of a wheel and using a computer for stor... | 12/04/2001 |
| 6324489 | Aircraft identification and docking guidance systems A laser range finder (LRF) is used to identify an aircraft approaching a gate. The LRF is directed at the aircraft, and from the echoes, a profile is derived and compared to known profiles. To distinguish among aircraft with similar profiles, the LRF is d... | 11/27/2001 |
| 6324488 | Process and arrangement for recognizing the rotating direction of an internal-combustion engine In the case of a process for recognizing the rotating direction of an internal-combustion engine using a crankshaft angle sensor, a camshaft angle sensor and an electronic internal-combustion engine control unit which processes the signals of these two se... | 11/27/2001 |
| 6321176 | Pitch angle calculating device for vehicle A pitch angle calculating device includes height detecting units arranged in front and rear positions of the vehicle for detecting front and rear vehicle heights and a calculating section for calculating a pitch angle of the vehicle by the vehicle heights... | 11/20/2001 |
| 6304190 | Method for determining the absolute angular position of the steering wheel of a motor vehicle, and optoelecronic steering angle sensor A method of determining the angular position of the steering wheel of a motor vehicle using an optoelectronic steering angel sensor includes disposing a code transmitter between the light source and the line sensor. The line sensor has image points positi... | 10/16/2001 |
| 6298312 | Method of determining the tip angle of a probe card needle A method is provided for determining the tip angle of a probe needle used to measure electrical characteristics of a circuit device, such as an IC. The spatial coordinates (X1, Y1, Z1), (X2, Y1, Z | 10/02/2001 |
| 6292759 | Vehicle attitude angle estimation using sensed signal blending An attitude angle estimator and method of estimating attitude angle of a vehicle. According to one embodiment, an angular attitude rate sensor senses angular attitude rate of a vehicle, and an accelerometer detects lateral or longitudinal acceleration. An... | 09/18/2001 |
| 6275778 | Location-force target path creator A location-force target path creator creates a smooth target path function from target values among values of location, position, force and moment given for a force control system. The target values are set as nodes together with times for which the targe... | 08/14/2001 |
| 6269324 | Magnetic object tracking based on direct observation of magnetic sensor measurements A magnetic object tracking algorithm, that may be implemented as an apparatus or a method, that permits kinematic tracking of magnetized objects, or targets, using magnetic field strength measurements derived from one or more vector magnetometers. The mag... | 07/31/2001 |
| 6263264 | Pseudo gyro with unmodeled disturbance torque estimation A pseudo gyro emulates mechanical gyros by software processes by processing space system appendage measurement data and reaction wheel tachometer data within reference and control systems of a satellite using principals of conservation of momentum to comp... | 07/17/2001 |
| 6253154 | Method and apparatus for navigating with correction of angular speed using azimuth detection sensor An apparatus and method for more accurately determining the position of a moving object by using an azimuth detector distinct from an angular speed detector to correct the gain error and the offset error of the angular speed detector. The position of the ... | 06/26/2001 |
| 6243658 | Tilt prediction for total station A tilt predictor incorporated into a total station to predict the degree of tilt of the rotational alidade portion of a total station corresponding to the rotational orientation of the rotational alidade portion. In one embodiment, the present invention d... | 06/05/2001 |
| 6199020 | External force measuring apparatus In an external measuring apparatus, a past zero signal value V0 is first read out. A subtracted value obtained by subtracting the zero signal value V0 from a read signal value Vin from an angular velocity detector is compared with a preset first threshold... | 03/06/2001 |
| 6163374 | Bending angle detection system A bending angle detection system capable of detecting a bending angle of a workpiece with high accuracy, wherein taking into account the fact that the brightness of a linear image formed on a surface of a workpiece is higher than that of a linear image fo... | 12/19/2000 |
| 6148271 | Speed, spin rate, and curve measuring device A device for measuring a movable object, such as a baseball, football, hockey puck, soccer ball, tennis ball, or a golf ball. Part of the device, called the object unit, is embedded, secured, or attached to the movable object of interest, and consists of ... | 11/14/2000 |
| 6131075 | Locomotion platform A locomotion platform is composed of a platform main body, a waist holding device, a signal fetching circuit, and a monitoring system. The platform main body consists of a platform structure body, a perforated platform face plate, position sensors, and ba... | 10/10/2000 |
| 6130706 | Process for determining vehicle dynamics A process for determining at least one dynamic of a vehicle, particularly slip angle, during travel. The process involves optically monitoring, in real time and from the vehicle itself, the movement in one or more camera images of surface features as the ... | 10/10/2000 |
| 6098452 | Machine control gage system performing roughness and roundness measuring functions The machine control gage system measures the size of a workpiece through a measuring head while a machining tool machines the workpiece. When the measured size of the workpiece reaches a preset size, the machine control gage system commands the machining ... | 08/08/2000 |
| 6078876 | Method and apparatus for tracking the position and orientation of a stylus and for digitizing a 3-D object A method and apparatus for measuring three-dimensional (3-D) coordinates. A 3-D object can be digitized into a mesh representation manipulable by a computer system by tracing a stylus of a probe apparatus over surfaces of the object. The probe apparatus i... | 06/20/2000 |
| 6058358 | Device for direction of rotation recognition and plausibility testing in absolute angular position measuring devices especially with serial transmission of actual positions detected A first value (V), which corresponds to the angular units covered during two actual position values successively transmitted via the data transmission link at the maximum rotational speed of the encoder shaft (W), and a second value (D) which corresponds ... | 05/02/2000 |
| 6038524 | Method and apparatus for measuring the inclination of a spin axis of a carrier To measure, in a reference frame, angular displacements of a privileged axis tied to a carrier, angular velocities or angular increments of the carrier are measured about two axes tied to the carrier, which axes are orthogonal to each other and at an angl... | 03/14/2000 |
| 6029118 | Device and method for position measuring An absolute position-measuring device has several graduation tracks with different graduation periods. Because of the low-pass filter behavior of the scanning elements, scanning signals with a high frequency are effected in the phase. A correction device ... | 02/22/2000 |
