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Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 8164293 | Method of controlling a motor Embodiments of the invention provide methods of controlling a motor, such as a servo motor. One method can include monitoring a current temperature of the motor and a power stage of the motor substantially continuously and substantially in real-time. This method can... | 04/24/2012 |
| 8154235 | Electric drive An electric drive has at least one electric motor and a power converter feeding electrical motor current thereto. A current desired-value emitter generates a reference signal. An additional circuit is coupled to the current desired-value emitter so as to receive the... | 04/10/2012 |
| 8143828 | Retrofit motor system for heating, ventilation, and air conditioning applications A motor control system for heating, ventilation, and air conditioning (HVAC) applications is described. The motor control system includes a thermostat and an electronically commutated motor (ECM) coupled to the thermostat. The ECM is configured to retrofit an existi... | 03/27/2012 |
| 8120300 | Fault tolerant cooling in a redundant power system An apparatus, system, and method are disclosed for fault tolerant cooling in a redundant power system. The apparatus receives power from a common power bus to power one or more power supply fans. The apparatus detects a non-functioning redundant power supply. The ap... | 02/21/2012 |
| 8106615 | Pump jack pump-off control method and pump jack control apparatus It is an object of the invention to provide a pump jack pump-off control method and a pump jack control apparatus in which, even when the speed of a pump jack is reduced due to generation of a pump-off condition, the pump jack is not caused to stop due to the motor ... | 01/31/2012 |
| 8093850 | Fan control system A fan control system includes a linear adjustor, an input/output controller, and a temperature sensor. A first terminal of the linear adjustor is connected to a first power supply. A second terminal of the linear adjustor is connected to a fan and grounded via a fir... | 01/10/2012 |
| 8089236 | System and method for adjusting pulse width modulation signals according to component temperatures in a computer A computer-based method for adjusting pulse width modulation (PWM) signals according to temperatures of one or more computer components includes setting a frequency formula for a fan in a computer. The method further includes reading current temperatures of one or m... | 01/03/2012 |
| 8084980 | HVAC actuator with internal heating An HVAC actuator configured to function in cold environments by providing a supplemental current component to an HVAC actuator in order to generate supplemental heat to warm the HVAC actuator. ... | 12/27/2011 |
| 8063600 | Thermally actuated overload tripping device A circuit breaker with overload and short-circuit protection functions for a motor, on which is mounted a thermally actuated overload tripping device including an adjustment dial to set a value corresponding to a rated current value of the motor on a scale. The dial... | 11/22/2011 |
| 8030863 | Motor drive device and vehicle provided with the same A control device converts a torque instruction value of an AC motor into a current instruction of AC motor, and employs current control in which feedback is performed by PI control to match an actual current value with the current instruction. Further, the control d... | 10/04/2011 |
| 7965054 | Vacuum pump A vacuum pump capable of accurately detecting a rotor temperature based on a change in permeability of a magnetic material. Two targets are fixed to a nut opposed to a gap sensor. The nut is made of pure iron, and a surface of the nut opposed to the gap sensor serve... | 06/21/2011 |
| 7948196 | Plurality of configurable independent compute nodes sharing a fan assembly A system comprising a chassis that includes a plurality of modules and a fan assembly disposed in a distal end of the chassis for drawing air in parallel pathways through the plurality of modules. At least one of the modules is a compute module having a thermal sens... | 05/24/2011 |
| 7893641 | Method and apparatus for thermal sensing in an electrically commutated motor A control circuit for a motor includes a voltage regulator having a thermal shutdown apparatus that turns off the voltage regulator while retaining power to a micro-controller preventing an automatic restart of the motor absent a recycling of power when the temperat... | 02/22/2011 |
| 7859210 | Semiconductor device for driving motor, three-phase motor and motor driving apparatus with the semiconductor device and fan motor In order to prevent a short circuit of top and bottom arms of a motor driving IC when noise is added to six control signals for controlling six switching elements, there is provided a semiconductor device for driving a motor, being sealed with resin as one package a... | 12/28/2010 |
| 7834571 | Fan system and protecting device thereof A protecting device of a fan system includes at least one first switch element and at least one control unit. The first switch element receives a first input signal. The control unit is electrically connected with the first switch element, receives the first input s... | 11/16/2010 |
| 7791300 | Excessive temperature detecting system of electric motor controller An electric motor controller for a vehicle has a voltage detecting section for detecting the voltage of a filter capacitor inserted on a direct current side of an inverter device including a semiconductor element for large electric power; an electric current detecti... | 09/07/2010 |
| 7782002 | Power converter A switch-type power converter comprising an PET switch operating in a variable duty cycle mode under the control of a Unitrode 3846 integrated circuit controller. Indications of excess input voltage and reverse battery connections are provided by circuits including ... | 08/24/2010 |
| 7768223 | Digital high-resolution controller Kinematic control of an electronic positioner and its associated actuator is effected through a control algorithm that delivers energy to the actuator based on observed motion produced by a previous delivery of energy. The algorithm achieves control based on a desir... | 08/03/2010 |
| 7768222 | Automated control of rotational velocity of an air-moving device of an electronics rack responsive to an event Automated control is provided of rotational velocity of an air-moving device cooling an electronics subsystem of an electronics rack. The automated control includes: automatically responding to a failure event associated with the electronics subsystem of the rack by... | 08/03/2010 |
| 7764037 | Electronic apparatus and method of controlling electric motor mounted in electronic apparatus An electronic apparatus includes: a timer member that clocks time on the basis of the power supplied from a power source. A power supply member supplies the power to an electric motor of the electronic apparatus and to the timer member from the power source and inte... | 07/27/2010 |
| 7755311 | Fan abnormality detection device When a fan drive current has become excessive, a fan drive device intercepts that current, waits for just a fixed time period T1, and thereafter flows that current for a second time. The fan power supply current flowed to the fan drive device is detected by a... | 07/13/2010 |
| 7733048 | Method and arrangement in connection with motor fed with frequency converter provided with intermediate voltage circuit Method and arrangement in connection with a motor fed with a frequency converter provided with an intermediate voltage circuit. The method comprises steps of feeding motor voltage to the motor along a motor cable with a frequency converter for controlling the motor,... | 06/08/2010 |
| 7679305 | Method and device for temperature limitation according to current and/or voltage The invention relates to a method for temperature limitation according to the current and/or voltage, for an actuating device (10) associated with an electric motor (M), especially a fan regulator (12) of a motor vehicle, the temperature limitation bei... | 03/16/2010 |
| 7671555 | Motor, a method of operating a motor, and a system including a motor An air movement system including a blower and an external controller operable to receive signals from a sensing device and generate a command based on the received signals. The command includes an address. The system also includes a communication channel coupled to ... | 03/02/2010 |
| 7633254 | Single phase motor driving device A device for driving a single phase motor is provided. The device controls the rotation of the single phase motor according to at least a control signal. The single phase motor driving device includes a control apparatus and a detection apparatus. The control appara... | 12/15/2009 |
| 7622879 | Thermal protection apparatus and method for hybrid vehicles Thermal variable-operation regulator that regulates the operation of an operating device by progressively limiting the operation of the operating device (24) as a limitation temperature (Tset) increases. The limitation temperature (Tset), based on which the o... | 11/24/2009 |
| 7609018 | Fan system and control device thereof A control device of a fan system includes a temperature sensing module, a comparing module and a driving module. The temperature sensing module senses an external temperature and generates a sensing signal according to the external temperature. The comparing module ... | 10/27/2009 |
| 7598694 | Power supply apparatus A power supply unit includes an input-side rectifying circuit (4), an inverter (8) and an output-side rectifying circuit (12), which include power semiconductor devices. The power supply unit is powered during a powering period, and the powering... | 10/06/2009 |
| 7586281 | Methods and apparatus for optimal voltage and frequency control of thermally limited systems Methods, apparatus, and articles of manufacture control a device or system that has an operational limit related to the rate or frequency of operation. The frequency of operation is controlled at a variable rate calculated to maximize the system or apparatus perform... | 09/08/2009 |
| 7583041 | Overheat preventing apparatus for electric motor The present invention includes temperature transition estimating means 24, 25 for estimating a temperature transition of an electric motor 1 caused by the passage of electric current through the electric motor 1, an electric pump 8 as coo... | 09/01/2009 |
| 7583042 | Device and method for driving a single phase motor A driving device is provided for controlling the rotation of a motor. The driving device comprises an input module, a comparing module and a processing module. The input module includes a voltage generating unit and a voltage adjusting unit to generate a comparing v... | 09/01/2009 |
| 7576506 | Feedforward parameter estimation for electric machines A method and system for estimating a parameter of an electric machine, including a controller and a switching device, the controller responsive to at least one of: a current sensor, and a temperature sensor. Where the controller executes a parameter estimation proce... | 08/18/2009 |
| 7573222 | Motor control apparatus A motor control apparatus for controlling an operation of an electric motor has an operational temperature estimator and an operation controller. The operational temperature estimator estimates an estimated temperature of the electric motor. The operation controller... | 08/11/2009 |
| 7538508 | Thermal overload protection A thermal overload protection for an electrical device, particularly an electric motor (M), measures a load current supplied to the electrical device (M), and calculates the thermal load on the electrical device on the basis of the measured load current, and shuts o... | 05/26/2009 |
| 7501777 | Printer and method of driving cooling fan of printer A printer and a method of driving a cooling fan of the printer include a storage unit temporarily stores printing option data and image data, and a control unit controls an operation of a printing unit in one of a warming-up mode, a standby mode, a printing mode and... | 03/10/2009 |
| 7446494 | HVAC actuator having torque compensation A method and system are disclosed for adjusting the torque of a motor for a HVAC actuator based upon one or more operating conditions of the HVAC actuator. One illustrative HVAC actuator includes an actuated part, a motor for providing a torque to move the actuated ... | 11/04/2008 |
| 7443122 | Electric drivetrain thermal protection system An electric drivetrain for a mobile machine is disclosed. The electric drivetrain has at least one power consuming device, a sensor associated with the at least one power consuming device, and a controller in communication with the power consuming device and the sen... | 10/28/2008 |
| 7443123 | Method and apparatus for preventing overheating in an electronically commutated motor assembly A control circuit for a motor includes a voltage regulator having a thermal shutdown apparatus that turns off the voltage regulator when the temperature of the control circuit rises above a pre-determined threshold level, wherein the voltage regulator is used to pro... | 10/28/2008 |
| 7442012 | Speed control for compressors Improvements to a compressor which consists in that, as soon as the measured outlet temperature (TO) reaches a certain hysteresis upper temperature limit (HMAX), the actual rotational speed of the compressor element is either lowered with a speed jump (DS) when the ... | 10/28/2008 |
| 7432679 | Non-intrusive method for extrapolating an internal stator temperature A method for non-intrusive determination of an internal temperature of a given area of an electrical machine stator, comprises obtaining a temperature gradient between an internal wall of the stator and an external wall of the stator, obtaining temperature measureme... | 10/07/2008 |
