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| Number | Title | Issue Date |
| 8154239 | Medical manipulator A medical manipulator includes an actuator block having a motor, a coupler detachably mounted on the actuator block and having a rotor connected to a rotatable shaft of the motor, a distal-end working unit mounted on a distal end of a joint shaft, which extends from... | 04/10/2012 |
| 8072173 | Servo motor monitoring apparatus Disclosed a servo motor monitoring apparatus including: a magnetic pole position calculating member to extract a magnetic pole position signal of the servo motor from a motor drive line connected to the servo motor; a present position signal inputting member to rece... | 12/06/2011 |
| 8040097 | Servo motor drive control device for calculating consumed electric energy and regenerated electric energy A mechanical system includes a plurality of amplifier groups each having a common power source unit connected to a higher-level power source and a plurality of power supply units for supplying power to servo motors from the common power source unit. A servo motor dr... | 10/18/2011 |
| 8030865 | Brushless DC motor and image pickup apparatus A brushless DC motor configured to drive a driven member includes a rotor having a magnet, a stator having a coil configured to provide a rotational force to the magnet, a position detector configured to output a first signal that is periodic, in accordance with a r... | 10/04/2011 |
| 7952314 | Electronic control device of an electrical drive system with redundant disconnection device In normal mode, a central unit of an electronic control device receives desired and actual values for determining desired current values which are transmitted to an electronic drive unit. The central unit of the electronic drive unit receives the desired current val... | 05/31/2011 |
| 7928681 | Disk apparatus capable of determining failure of spindle motor A control portion instructs supply of an offset voltage while a disk remains stopped at the time of start. While the disk remains stopped at the time of start, a differential operational amplifier detects a voltage difference between a first voltage supply line and ... | 04/19/2011 |
| 7928677 | Motor control circuit and method with mechanical angle reconstruction A method of controlling a motor connected to an unbalanced load in accordance with an embodiment of the present application includes operating the motor for a predetermined period of time with a first performance parameter held constant, monitoring a signal related ... | 04/19/2011 |
| 7893644 | Ultra-compact, high-performance motor controller and method of using same Featured is a controller for a motor that is ultra-compact, with a power density of at least about 20 watts per cubic cm (W/cm3). The controller utilizes a common ground for power circuitry, which energizes the windings of the motor, and the signal circui... | 02/22/2011 |
| 7723940 | Non-redundant safety monitoring for an electric drive mechanism (with a sensor) The invention relates to a method for detecting undesired operating conditions of a driving device. A sensor (50) that is transformer-coupled between a stator side and a rotor side is triggered by a control circuit (40) for detecting a position value o... | 05/25/2010 |
| 7683564 | System for monitoring load and angle for mobile lift device A mobile lift device having a load moving device capable of engaging a load is provided. The mobile lift device includes one or more systems for stabilizing the mobile lift device during operation of the load moving device. According to one exemplary embodiment, the... | 03/23/2010 |
| 7675257 | Methods and systems for recording operating information of an electronically commutated motor A unit for recording operating information of an electronically commutated motor (ECM) is described. The unit includes a system controller communicatively coupled to an ECM. The system controller includes a processing device configured to control the unit. The unit ... | 03/09/2010 |
| 7557528 | System, method, and computer software code for detection and interchangeability of a motor A method for autonomously identifying a type of motor based on a characteristic value of the motor, the method including measuring a characteristic value of a motor, comparing the measured characteristic value to a known characteristic value, and identifying the mot... | 07/07/2009 |
| 7489098 | System for monitoring load and angle for mobile lift device A mobile lift device having a load moving device capable of engaging a load is provided. The mobile lift device includes one or more systems for stabilizing the mobile lift device during operation of the load moving device. According to one exemplary embodiment, the... | 02/10/2009 |
| 7397216 | Circuit for monitoring harmonic distortion in the power supply of a synchronous electrical machine with permanent magnet excitation The present invention provides a circuit for monitoring harmonic distortion in the power supply of a synchronous electrical machine with permanent magnet excitation that comprises a rotor without a damper cage, a stator with first, second, and third windings, a freq... | 07/08/2008 |
| 7372219 | Belt driven centrifugal separator with multi-stage, belt deterioration alerting display In a centrifugal separator of the type in which driving power of a motor is transmitted to a rotor via a power transmission mechanism, such as a belt, a motor-rotation signal frequency fm and a rotor-rotation signal frequency fr are computed, on the basis of which a... | 05/13/2008 |
| 7368827 | Electrical assembly for monitoring conditions in a combustion turbine operating environment An electrical assembly for use in various operating environments such as a casing of a combustion turbine 10 is provided. The assembly may include an electrical energy-harvesting device 51 disposed in a component within the casing of the turbine to con... | 05/06/2008 |
| 7365449 | Aircraft cabin equipped with means for controlling the power consumed by seat actuators An aircraft cabin including at least two seats, which seat each include at least two elements which can be moved relative to each other and at least one actuator for the relative displacement of these movable elements, and at least one central power control unit in ... | 04/29/2008 |
| 7362068 | Closing member control system A controller reduces an output of the drive motor when a window glass reaches a speed shift position, which is between a fully open position and a fully closed position of the window glass, in a closing operation of the window glass. The controller increases the out... | 04/22/2008 |
| 7359870 | System design, proposal and programming method and apparatus A technique is provided or integrating system design, sales, and manufacturing functions. Systems including networked and programmable electrical components, such as motor control centers, and other electrical power control arrangements are designed, and a database ... | 04/15/2008 |
| 7359783 | Method of detecting obstructions caused by motor-driven power windows and similar devices using fuzzy logic algorithms The mobile element is a vehicle window pane, panel, movable seat or similar, conveniently guided, and driven by a DC electric motor with a permanent magnet, and the method comprises a step of detecting an entrapment or collision situation of the mobile element by me... | 04/15/2008 |
| 7348746 | Abnormality detection system of mobile robot In an abnormality detection system of a mobile robot, it is configured such that it is self-diagnosed whether the quantity of state is an abnormal value, or whether at least one of the internal sensor, etc., is abnormal and when an abnormality is self-diagnosed, abn... | 03/25/2008 |
| 7348183 | Self-contained microelectrochemical bioassay platforms and methods Methods and devices for improved chemical and biomass detection assays combined well defined microstructures having independently addressable electrodes with various surface immobilization electrochemical assays. Combining known chemical detection immobilization ass... | 03/25/2008 |
| 7333400 | Regulated low power control system for electrostatic actuators The invention concerns a control system for a servomechanism comprising a control member that can move between first and second positions defining a variable electric quantity respectively between a minimum quantity and a maximum quantity, characterized in that the ... | 02/19/2008 |
| 7298282 | Health monitoring method and system for a permanent magnet device A method and system for monitoring the performance of a permanent magnet device, such as a motor or generator, and providing early detection of motor performance deterioration. The back electromotive force (EMF) of the motor is measured at selected conditions when t... | 11/20/2007 |
| 7291999 | System and method for diagnosing a controller in a limited rotation motor system A method of analyzing a limited rotation motor system is disclosed. The method includes the step of providing a motor control frequency domain signal that is representative of a frequency domain representation of the motor control signal responsive to a first digita... | 11/06/2007 |
| 7282883 | Pivoting and barrier locking operator system A system for moving a barrier between limit positions, includes an operator motor assembly mounted proximate to the barrier, wherein at least a portion of the motor assembly is movable between an operating position and a locking position with the motor assembly bloc... | 10/16/2007 |
| 7279862 | Fault handling of inverter driven PM motor drives An apparatus includes a multi-phase inverter, a fault detector to indicate a detection of a fault, a sensor to provide a speed signal indicative of whether a speed of a PM motor is greater than a transition speed, and a controller. The controller is operable to appl... | 10/09/2007 |
| 7268681 | System and method for actuating a remote control access system A system and method of actuating a remote control access system in a motor vehicle non-invasively detects the occurrence of an event involving an actuation of at least one component of a motor vehicle. A control signal is transmitted to a remote control access syste... | 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 |
| 7259534 | Method for controlling spindle motor by time length for passing through defect A method of use a defect measure to control spindle motor is described. A system gets the defect situation from a CD by referring a maximum time of pass through the defect and a total time of pass through the defect. According the maximum scrape and the scrape of wh... | 08/21/2007 |
| 7252328 | Controller for a moving member and method for setting a reference position of the moving member A control apparatus for a movable vehicle roof panel determines the position of the panel in a tilt open state and evaluates whether the panel is in normal tilt-open range of positions or has, via inertia, traveled beyond those normal positions. The control apparatu... | 08/07/2007 |
| 7254514 | Method and system for predicting remaining life for motors featuring on-line insulation condition monitor A method and a system for determining a remaining time before failure of a motor system are provided. The method and the system determine the remaining time before failure based on historical motor data and operational parameter data associated with the motor system... | 08/07/2007 |
| 7253577 | Independent safety processor for disabling the operation of high power devices A drive for delivering a high-power signal to a load includes a power circuit and a drive circuit. The power circuit is operable to provide a high power signal to the load in response to a control signal. The control circuit is operable to generate the control signa... | 08/07/2007 |
| 7245101 | System and method for monitoring and control The invention provides for the monitoring and control of a system, such as a linear electro-mechanical transducer, e.g. a linear electric motor, particularly when driven in a reciprocating manner. A dynamic model of the linear motor and its load is used to calculate... | 07/17/2007 |
| 7239968 | Method and apparatus for predicting fan failure A method and apparatus are provided for monitoring and adjusting angular speed or rotational frequency of a fan as well as wear. As a result of being able to monitor the angular speed or rotational frequency of a fan, a prediction of both wear and failure can be mad... | 07/03/2007 |
| 7224217 | Switching amplifier A switching amplifier including a PWM circuit 14, a driver 15, a switching output circuit 16 and an LPF 17 is provided with a fluctuation detection circuit 12 for detecting fluctuations in the power supply voltage. The fluctuation ... | 05/29/2007 |
| 7221119 | Robot system In a case in which an operation is alternately carried out by apparatus-1 and the apparatus-2 in cooperation with a robot, an operator carries out operation within an operation range of each of the apparatuses during the interruption of power supply to... | 05/22/2007 |
| 7208897 | Motion control system for barrier drive A system for operating a barrier system such as a garage door, gate or fence. A DC motor is connected to and operates a barrier drive. A power amplifier is configured to receive power signals from a power supply and to output modulated DC signals to the DC motor. A ... | 04/24/2007 |
| 7196485 | Universal low-power ceiling fan controller A universal low-power ceiling fan controller includes a brushless DC motor in a ceiling fan casing, a microprocessor connected to a power supply that operates with a remote-control device and has a transmitter and a receiver for transmitting data signals to the micr... | 03/27/2007 |
| 7193376 | Vehicle control unit and vehicle A control unit controls a vehicle having a body to allow its user to step on, a power generator arranged to generate power that drives the body, and a load sensor unit arranged to output a load value representing a load that has been applied to the body. The control... | 03/20/2007 |
