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| Number | Title | Issue Date |
| 8188727 | Hub mountable speed sensing device A hub mountable speed sensing device comprising a housing, a metallic tubular insert adapted to be press-fitted with respect to the housing, a stationary speed sensing probe comprising a magnetic conversion device having a bias magnet and adapted to be inserted into... | 05/29/2012 |
| 8164324 | Rotation sensor A rotation sensor includes a detecting portion, a rotational state determining portion and a pulse generating portion. The detecting portion detects a rotation of a rotational member and outputs a detection signal. The rotational state determining portion determines... | 04/24/2012 |
| 8106647 | Rotation sensor A rotation sensor for detecting rotation of an object includes a semiconductor substrate, a vertical Hall element, and a magnetoresistive element. The vertical Hall element is formed in the semiconductor substrate to detect a magnetic field parallel to a surface of ... | 01/31/2012 |
| 8093885 | Residual magnetic flux determining apparatus A residual magnetic flux measurement apparatus measures residual magnetic fluxes by using a transformer-voltage measurement means for measuring transformer voltages; a voltage delay means for delaying the measured signals; a DC-voltage-component calculation means fo... | 01/10/2012 |
| 7746063 | Speed indication for pump condition monitoring A method and apparatus are provided for obtaining the rotational speed of a pump system or other suitable rotating equipment having a self-contained pump electrical equipment power supply. The method features, before being rectified, directing one phase of AC power ... | 06/29/2010 |
| 7728581 | Method of using oscilloscope to test rotation speed of fan An exemplary method for testing rotating speed of a fan, includes the following steps: coupling a fan and a resistor in series to a power supply; coupling an oscilloscope in parallel with the resistor; plotting voltage across the resistor on a screen of the oscillos... | 06/01/2010 |
| 7511474 | DC motor phase detection method for determining a distance traveled by a load A DC motor phase detection algorithm that monitors the change in motor current to detect pulses in the current caused by the motor's commutator brushes crossing over the gap between rotor commutator segments as the motor shaft rotates. A pulse is generated each time... | 03/31/2009 |
| 7441322 | Method of manufacturing a magnetic detection apparatus A magnetic detection apparatus can be improved in its product yield. The magnetic detection apparatus includes a resin compact having a the magnet arranged in opposition to an object to be detected for generating a magnetic field, an IC chip with a magnetic detectio... | 10/28/2008 |
| 7385387 | Signal processing circuit of rotation detecting device A rotation detecting device includes a rotation detecting unit for providing first and second rotation signals in response to rotation of a rotating object and a signal processing circuit for processing the signals to provide rotation data such as the rotation direc... | 06/10/2008 |
| 7372717 | Methods for resistive memory element sensing using averaging A system for determining the logic state of a resistive memory cell element, for example an MRAM resistive cell element. The system includes a controlled voltage supply, an electronic charge reservoir, a current source, and a pulse counter. The controlled voltage su... | 05/13/2008 |
| 7369960 | Device and method for detecting an angular position of a rotating object In detecting the time at which a rotating object passes a given angular position, a value range of an angular position sensor output signal which varies relatively rapidly with angular position acts as a trip threshold that, when exceeded, indicates the object has a... | 05/06/2008 |
| 7365530 | Method and apparatus for vibration detection Apparatus for detecting vibration of an object adapted to rotate includes one or more vibration processors selected from: a direction-change processor adapted to detect changes in a direction of rotation of the object, a direction-agreement processor adapted to iden... | 04/29/2008 |
| 7360421 | Detachable angular speed sensing system A system for sensing velocity of a wheeled vehicle has a flexible arm connected to a speed sensor and wireless transmitter at one end and to an adjustable strap or clamp at the other end. The strap is attached near the wheel to be measured. The sensor can then be po... | 04/22/2008 |
| 7360527 | Method for operating an internal combustion engine A method for operating an internal combustion engine, particularly of a motor vehicle, is described. The engine has a number of cylinders (Z1, Z2, Z3, Z4), and in each of the cylinders (Z1, Z2, Z3, Z4), one mov... | 04/22/2008 |
| 7358723 | Magnetoresistive sensor What is described is a magnetoresistive sensor for operation with a magnetized encoder, which is equipped with a zone with magnetic north and south poles arranged alternately along a direction of motion, comprising a Wheatstone bridge configuration with a first brid... | 04/15/2008 |
| 7352171 | Paddlewheel speed correction A speed sensor for a marine vessel includes a correction circuit to correct any sensor non-linearities so that the sensor produces an output with a pulse stream having a constant pulse rate, and reduces the pulse-to-pulse variations of the pulse stream. The circuit ... | 04/01/2008 |
| 7348770 | Electronic device for interrupt signal control to acquire encoder speed information and a method thereof An electronic device for acquiring encoder speed information and a method for implementing the same are provided, wherein the electronic device includes an encoder for electrically outputting an encoder signal corresponding to a driving speed, a processor unit for o... | 03/25/2008 |
| 7345468 | Detection signal processing circuit and detection signal processing apparatus for a rotation sensor Detecting the rotational direction of a rotor is feasible by allowing a constant current source to supply a constant current flowing from an electric potential supply line to the earth in response to a turning-on action of a switch. Accordingly, detecting both the r... | 03/18/2008 |
| 7343261 | Underwater sensor transmitter probe An electronic apparatus for measuring water speed and water temperature then periodically transmitting said data during controlled depth fishing wherein an underwater probe is secured to and insulated conductive downrigger cable and gathers and relays data though th... | 03/11/2008 |
| 7324887 | Eddy current detection of wheel speed with voltage threshold shifting A wheel speed detection system including a rotator, a sensor head, a detector, a pulse converter, a speed calculator and a threshold shifter. Plural concave and convex portions are formed on a periphery of the rotator rotating together with a wheel. The sensor head ... | 01/29/2008 |
| 7322437 | Structure for attaching a wheel speed sensor in motorcycle A motorcycle includes radial mount type disk brakes, a brake caliper of the disk brake is mounted on a lower portion of a front fork, which pivotably supports a front wheel, the wheel speed sensor is attached to a mounting boss disposed at the lower portion of one l... | 01/29/2008 |
| 7320166 | Speed sensor encoder wheel and method of making A method of making an encoder for use in a speed sensor includes providing a metal tube. A material containing ferrite is then extruded over the metal tube to produce an encoder tube. The encoder tube is cut to a given length to form an encoder. The encoder is then ... | 01/22/2008 |
| 7317313 | Magnetic encoder apparatus A magnetic encoder apparatus has a housing that includes a base portion and a cover plate portion. The housing also has a magnet that is contained in the base portion of the housing, a sensor chip having a major surface located adjacent to the magnet, and an alignme... | 01/08/2008 |
| 7304470 | Fan operating status monitoring system A fan operating status monitoring system includes a detecting module to detect pulsation currents generated by the rotation of a fan, and further convert the detected pulsation currents to voltage signals, thereby allowing a differential magnifying module, a first p... | 12/04/2007 |
| 7298285 | Rotary downlink system A method for downlink communication with a downhole tool having a mud-powered downhole motor that includes receiving a sensor signal related to a rotational speed of a rotor in the mud-powered downhole motor, and interpreting the sensor signal to derive a downlink s... | 11/20/2007 |
| 7294981 | Method of determining the position of the shaft of a drive motor for a roller blind The method of determining the position of the shaft of a direct current motor including an armature powered via brushes and a bar commutator and designed to drive a roller blind includes the following phases: detecting and counting... | 11/13/2007 |
| 7295000 | Method for detecting disturbances when determining the rotational speed of a rotor and evaluation circuit The invention relates to a rotary encoder and to a method for detecting disturbances in such a rotary encoder. In this case, vibrations or other disturbances are detected by means of the phase difference between a rotational speed signal, which represents a rotation... | 11/13/2007 |
| 7293479 | Speed and temperature sensing in separate cavities in a single sensing head A sensor apparatus includes a sensor assembly for maintaining multiple and varying sensor components, wherein the sensor assembly comprises a molded sensor head configured to include a first cavity and a second cavity. A first sensor of a first sensor type can be lo... | 11/13/2007 |
| 7292028 | Apparatus for sensing the absolute-value angle of a shaft An apparatus serves to sense the absolute value of the rotational position of a shaft (14). The apparatus has a first single-turn rotary encoder (30) that is arranged at one end (20) of the shaft (14) and is arranged to sense the latter's... | 11/06/2007 |
| 7289022 | Communication system and method for communicating between a tire/wheel assembly and a vehicle body A communication system for communicating between a tire/wheel assembly and a body of a vehicle of a construction in which the tire/wheel assembly is supported by the vehicle body, has a i) wheel-side communication device that is mounted to the tire/wheel assembly an... | 10/30/2007 |
| 7284743 | Hoist limiting system A hoist limiting system (15) comprising a frame (16), a hoist drum (17) supported by the frame and rotatable about a hoist axis (x-x), a hoist driver (19) supported by the frame and configured to rotate the hoist drum in opposite upward (... | 10/23/2007 |
| 7285949 | Transmission input shaft speed measuring assembly A device for sensing the input shaft speed of an automotive automatic transmission that is driven by the engine through the fluid coupling of a torque converter. The speed sensor device includes circumferentially spaced markings about the transmission input shaft an... | 10/23/2007 |
| 7283897 | Method and system for compensating for wheel wear on a train A method and system for compensating for wheel wear uses position and/or speed information from an independent positioning system to measure some distance over which the train has traveled. Wheel rotation information is also collected over the distance. The wheel ro... | 10/16/2007 |
| 7274188 | Pulser ring mounting structure including an annular groove formed on a side surface of a brake disk to which the pulser ring is mounted In a motorcycle, to prevent an increase in the diameter of a hub in association with the mounting of a pulser ring and for increasing the flexibility when arranging a wheel speed sensor. An annular groove is formed on a side surface of an annular rear brake disk in ... | 09/25/2007 |
| 7275013 | Plasma anemometer and method for using same Methods and systems are described for a system for obtaining information regarding a flow. These methods and systems comprise a signal generator configured to generate an alternating current signal at a carrier frequency and a transformer arranged to receive the gen... | 09/25/2007 |
| 7268502 | Method and arrangement for controlling the synchronous running of a plurality of electronically commutated motors A method of controlling synchronous running of a plurality of electronically commutated motors (22, 24, 26), each of which includes a stator having a stator winding (40, 42, 44), a permanent-magnet rotor (28, 30, 32), and at least one arrangemen... | 09/11/2007 |
| 7265538 | Method and device for measuring the rotational speed of a pulse-activated electric motor based on a frequency of current ripples A method and a device for measuring the speed of a pulse-activated electric motor are described. According to this method, the motor is fully activated at time intervals to be determined for a defined measuring time by the circuit element provided for timing and, in... | 09/04/2007 |
| 7263870 | Gauge calibration method The instrument panel gauge assembly includes an applique having gauge graphics printed thereon and a needle pointer for a gauge assembly positioned adjacent thereto. A transparent chaplet is formed within the applique to allow light to pass through. The needle passe... | 09/04/2007 |
| 7265539 | Calibration of a hall effect sensor An actuator having an output shaft, a motor for rotating the output shaft between a first position and a second position, and an electronic control module having a controller and a sensor. The sensor is configured to output a signal to the controller indicative of t... | 09/04/2007 |
| 7262591 | Technique for sensing the rotational speed and angular position of a rotating wheel A method of processing a pulse train output signal provided by a non-contact sensor that senses the rotational speed and angular position of a rotating wheel includes comparing the amplitudes of the pulses with a variable switching threshold value, and adjusting the... | 08/28/2007 |
