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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 8400097 | Pulse period measurement method The effect of chattering on the measurement of the pulse period is reduced. The pulse period representing the rise interval of target pulses appearing in a pulse signal PI is measured. The pulse signal PI is sampled in synchronization with a measurement clock CLK. M... | 03/19/2013 |
| 7649332 | Motor controller having counter to count position error events and method of motor control using same A motor control system uses an incremental encoder that provides a signal indicative of motor position. If an illegal state change is detected in the same sampling interval, an error event is recorded and an error counter is incremented. When the number of counts ex... | 01/19/2010 |
| 7615959 | Apparatus and method for controlling brushless DC motor Disclosed is a control apparatus for a brushless DC motor, which has a rotor with n poles (where n is a natural number) that rotates due to a supply current with m phases (where m is a natural number) applied to a stator, controlling the number of output rotations o... | 11/10/2009 |
| 7589487 | Method of selectable simultaneous/sequential motor drive in a multiple drive circuit including failure detection A system and method is provided for improved monitoring and controlling of mechanically commutated DC motors. The system and method include DC motors, pulse-count driver circuitry for driving the motors, motor position sensing circuitry, and motor control circuitry.... | 09/15/2009 |
| 7586283 | Magnetic encoder device and actuator Provided is a magnetic encoder device capable of detecting a rotating angle of an actuator having a cavity structure. The magnetic encoder device includes a ring-shaped rotating body 11, a ring-shaped permanent magnet 12 which is inscribed in an... | 09/08/2009 |
| 7417411 | Apparatus and method for monitoring tap positions of load tap changer A load tap changer (LTC) having a plurality of windings is coupled to one of the primary and secondary windings of a power transformer in order to regulate the output voltage of the power transformer. The LTC includes a plurality of taps physically and electrically ... | 08/26/2008 |
| 7397207 | Electric supercharger for vehicle The electric supercharger includes a vehicle connector, an impulse signal generator empowered by a power source, and a signal amplifier. The vehicle connector has a positive terminal and a negative terminal for electrically connecting to an electrical source of said... | 07/08/2008 |
| 7377379 | Transport belt drive control device, image forming device, and transport belt drive control method In a transport belt drive control device, a first detection unit has a first resolution and indirectly detects a feed amount of a transport belt, a control unit controls drive of the transport belt based on an output of the first detection unit, and a second detecti... | 05/27/2008 |
| 7375487 | Geared motor A motor encoder is mounted on a motor shaft of a geared motor 1, and the origin position is detected by using a Z-phase signal. An absolute value encoder with a precision that allows the number of motor rotations to be determined is mounted on an output shaft... | 05/20/2008 |
| 7373565 | Start/stop circuit for performance counter A circuit for tracking a number of clock cycles between occurrences of an event of interest. The circuit includes logic for asserting a run signal responsive to a first occurrence of the event of interest, logic for deasserting the run signal responsive to a second ... | 05/13/2008 |
| 7362070 | Electric motor control system including position determination and error correction A system for controlling an electric motor includes a controller and a position indicator that provides position information regarding at least one motor component to the controller. The controller utilizes phase relationships indicative of the position information ... | 04/22/2008 |
| 7354166 | Automatic viewing of vehicle blind spot Observing an object within a visual blind spot of a motor vehicle includes using a mirror with at least one motor mechanically coupled thereto. Preferably, a position of the side view mirror can be adjusted by the at least one motor. An object detector detects objec... | 04/08/2008 |
| 7332830 | Rainfall determination apparatus and method A rainfall determination apparatus for determining rainfall based on data relating to a wiping operation of a wiper. The apparatus includes a detection device for detecting the wiping operation every time this operation is performed; a timer for starting to clock a ... | 02/19/2008 |
| 7323838 | Motor control method and device thereof A motor control method and device. The motor control device includes a programmable integrated circuit (IC) receiving a phase signal, the phase of which is consistent with the rotation phase of a coil of the motor. The programmable IC generates a duty-cycle signal i... | 01/29/2008 |
| 7323840 | Magnetic-pole detecting system for synchronous AC motor and magnetic-pole detecting method therefor A magnetic-pole detecting system for synchronous AC motors and a magnetic-pole detecting method therefor are provided. The magnetic-pole detecting system for synchronous AC motors includes a position detector 10 for detecting the relative position between the... | 01/29/2008 |
| 7319303 | Method and apparatus for estimating the position of a moving part of a linear actuator A method and an apparatus for estimating the position of a moving part of a linear actuator are provided. The method comprises the following steps. Move the moving part towards a target position. Receive magnetic signals generated by the magneto-resistive sensor of ... | 01/15/2008 |
| 7319652 | Controlling optical pickup of optical disk drive by detecting change of sampling signals taken from a motor drive signal A drive current or a drive voltage is controlled corresponding to change of load by sampling the drive current or drive voltage of a motor to move an optical pickup and then detecting change of the sampling signal as change of the optical pickup when it is moved. Mo... | 01/15/2008 |
| 7319391 | Centralised security closure A device of automated closure, and of locking, comprising a mobile closure or locking element (2), an actuator (3) electrically controllable for the motion of the element, a sensor (4), a programming and control device, the program of which comp... | 01/15/2008 |
| 7317294 | Pulse generator and method thereof A pulse generator and method thereof. The pulse generator may include a first switching unit receiving a plurality of receiving a plurality of time interval indicators and a first selection signal. The first switching unit may select one of the plurality of time int... | 01/08/2008 |
| 7315272 | Inverter-based flash analog-to-digital converter using floating resistor ladder An analog-to-digital converter device for converting an analog signal into a digital signal includes a comparator array including a plurality of comparators, each of the comparators including a first inverter and a second inverter connected in series with the first ... | 01/01/2008 |
| 7312590 | Model railroad velocity controller Control over velocity of a model train may be determined based upon the speed of rotation of a control knob. A processor receives electronic pulses indicating rotation of the knob beyond a predetermined increment of angular distance. The processor calculates the amo... | 12/25/2007 |
| 7288914 | Drive wave generation circuit Two standard waves from a standard waveform generation circuit are output via an output gate while being interchanged by a direction selector. The switching operation of the direction selector is controlled by a direction control signal M/I. 200 cycles of the standa... | 10/30/2007 |
| 7288913 | Drive wave generation circuit Two standard waves from a standard waveform generation circuit are output via an output gate while being interchanged by a direction selector. The switching operation of the direction selector is controlled by a direction control signal M/I. 200 cycles of the standa... | 10/30/2007 |
| 7281760 | Method and device for adjusting a vehicle reclining seat A method and a device are provided for adjusting a vehicle reclining seat which can be moved together into a resting position, the backrest of a front passenger seat being able to be folded downward to the rear and forming a resting surface together with a backseat.... | 10/16/2007 |
| 7274165 | Numerical controller A numerical controller capable of mitigating mechanical shock caused by tool compensation while a machine tool is operated according to table data. X- and Z-axis path tables Tx, Tz store X- and Z-axis positions corresponding to reference positions (time or spindle p... | 09/25/2007 |
| 7271558 | Method for the generation of electrical pulses In rotating systems with angular references, angular- and/or time-based pulses must be generated which can be described in a generic manner to meet various requirements. The parameters for definition of the pulse are assigned as a value pair to permit more flexibili... | 09/18/2007 |
| 7265901 | Telescope mount having locator system and drive mechanism for locating objects and positioning telescope A portable altitude/azimuth telescope mount having an integral locator system with a magnetic encoder mechanism for facilitating location of astronomical objects and telescope positioning for observation thereof. A microprocessor receives signals from the encoder me... | 09/04/2007 |
| 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 |
| 7241034 | Automatic directional control system for vehicle headlights A structure and method for operating a directional control system for vehicle headlights that is capable of altering the directional aiming angles of the headlights to account for changes in the operating conditions of the vehicle. One or more operating condition se... | 07/10/2007 |
| 7235939 | Method for detecting the angular position of a rotor in a brushless electric motor A method for detecting the angular position of a rotor in a brushless electric motor, of the type in which the emission of a polarity signal of the back electromotive force by a detection circuitry associated with the motor, includes the using a bi-directional count... | 06/26/2007 |
| 7231059 | Image processing apparatus, method and storage medium therefor When image information for the purpose of being printed out has been entered, whether or not the image information contains a mark image such as a watermark is determined to such an extent that will not lower the throughput of a printer. To accomplish this, the imag... | 06/12/2007 |
| 7227321 | System and method for detecting back electromotive force with automatic pole calibration A system and method for determining the rotational speed of a motor, such as a three-phase disk drive motor, detects back electromotive force voltage generated during operation of the motor with an automatic pole calibration to minimize or eliminating variations in ... | 06/05/2007 |
| 7221114 | Conveyance control apparatus and image forming apparatus A conveyance control apparatus controls an amount of movement of a carrier. A first encoder detects an amount of movement of the carrier and outputting a first signal. A second encoder detects an amount of movement of a drive member driving the carrier. A control pa... | 05/22/2007 |
| 7211974 | Motor and drive control system thereof Provided is a motor having a magnetic polar unit in which a permanent magnetic polar array having arranged therein alternately a plurality of permanent magnetic polar elements in alternate opposite poles is made to face a plurality of electromagnetic coil arrays alt... | 05/01/2007 |
| 7208907 | System and method of restarting a switched reluctance motor after a rapid cycling of power A system and method of restarting a switched reluctance motor after a cycling of power provided to the motor is provided that includes receiving at the motor a power-off signal followed by a power-on signal, determining a rotational speed of a rotor, and energizing ... | 04/24/2007 |
| 7207142 | System and related methods for signaling the position of a movable barrier and securing its position A system for signaling the position of a movable barrier includes a movable barrier; a motor coupled to the movable barrier for moving the movable barrier between limit positions; a position detection device that monitors the movable barrier to generate a barrier po... | 04/24/2007 |
| 7209862 | Self-diagnosing system for encoder A self-diagnosing system for an encoder. The system includes an encoder circuit for outputting information detected by an encoder; a data preparing section provided in the encoder circuit and preparing data representing a state of an abnormal-state judgment factor i... | 04/24/2007 |
| 7196489 | Rotary shaft control apparatus The invention aims to suppress or prevent the vibration that can occur due to the intervention of a low-rigidity part between detector and rotating body. An angular acceleration sensor for detecting the rotational angular acceleration of a rotating body is provided,... | 03/27/2007 |
| 7193205 | Optical encoder with burst generator for generating burst output signals A processing apparatus calculates and applies calibrations to sensors that produce quasi-sinusoidal, quadrature signals, using fixed or programmable electronic circuits, a circuit to calculate the phase and magnitude corresponding to the two input (quadrature) signa... | 03/20/2007 |
| 7190130 | Electric motor pole position sensing method, pole position sensing apparatus, and electric motor control apparatus using the same It is an object of the invention to provide a method which can detect a magnetic pole position easily and surely by using high-frequency currents such as harmonics of an inverter output and carrier frequency components. The invention provides a method of detecting a... | 03/13/2007 |
