Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 7733037 | Integrated skid with multiple-motor controller An integrated skid system integrates the functions of multiple skids into a single skid to reduce the skid footprint and the complexity of the overall system. A multi-motor controller monitors the devices on the integrated skid to maintain proper temperature, pressu... | 06/08/2010 |
| 7525262 | Automatic clothes dryer An automatic clothes dryer comprises a cabinet in which is rotatably mounted a drum that defines a drying chamber and a motor for rotating the drum. A variable speed blower is mounted within the interior space and is fluidly coupled to the drying chamber for moving ... | 04/28/2009 |
| 7358695 | Method for controlling fan A method for controlling a fan is provided for adjusting the rotational speed of a fan. The method includes adjusting the rotational speed of the fan from a first mode value to a range of rotational speed variation, wherein the upper bound of the range of rotational... | 04/15/2008 |
| 7256558 | Brushless motor and disk drive device using the same A brushless motor according to the present invention provided with a recording disk in a rotational member and serving to rotate the recording disk together with the rotational member comprises a first position detecting means for detecting a rotational position of ... | 08/14/2007 |
| 7239096 | Vehicle seat having an electronic control system An electronic control system (24) for a vehicle seat is provided that includes a seat base (12), a seat back (14), an operator input device (30) and a control circuit (26). The seat base has a seat back motor (34) configured... | 07/03/2007 |
| 7187142 | Motor drive with velocity noise filter A drive unit for controlling a motor includes a position feedback device and a velocity noise filter. The position feedback device is operable to generate a position signal relating to a position of the motor. The velocity noise filter is coupled to the position fee... | 03/06/2007 |
| 7170240 | Vehicle seat having an electronic control system An electronic control system (24) for a vehicle seat is provided that includes a seat base (12), a seat back (14), an operator input device (30) and a control circuit (26). The seat base has a seat back motor (34) configured... | 01/30/2007 |
| 7138772 | Electrically movable vehicle and control program for driving electrically movable vehicle The invention provides an electrically movable vehicle drivable by a simplified mode of control and a control program for driving the vehicle. A normalized value Y′ representing translation motion and a normalized value X′ representing turning motion are fed fro... | 11/21/2006 |
| 7102309 | Apparatus for compensating for speed error of motor The present invention discloses an apparatus for compensating for a speed error of a motor which can reduce a speed ripple of the motor resulting from load characteristics, and which also can reduce vibrations and noises. The apparatus for compensating for the speed... | 09/05/2006 |
| 7095195 | Motor and disk drive apparatus In a motor and a disk drive apparatus in accordance with the present invention, a position detecting part 30 comprises a detection signal switching circuit 39A, a noise elimination circuit 38 and a detection circuit 39B, and the detection... | 08/22/2006 |
| 7023152 | Driving control device for actuator A driving control device for an actuator comprises a driving device to drive an actuator having an electric motor (30) and a driving control device (50) to control the rotation of the electric motor (30) by controlling the driving device. The dr... | 04/04/2006 |
| 6954045 | Driving force control system for hybrid vehicle There are provided as drive sources an engine 2, a front motor 3 provided on a front wheels 8 side of the vehicle and a rear motor 4 provided on a rear wheels 9 side of the vehicle, and in executing a regeneration of deceleration e... | 10/11/2005 |
| 6937942 | Method and apparatus of detecting tool abnormality in a machine tool A method and apparatus is provided of detecting tool abnormality in a machine tool. Permissible minimum and maximum values of load current in a real cutting section are determined for a spindle motor and a servomotor during normal operation of the machine tool. The ... | 08/30/2005 |
| 6917178 | Electric actuator system In determining a starting point of a motor of an electric actuator during its initialization procedure, when a rotation angle sensor detects pulse signals in a certain initialization pattern, power supply to the motor is stopped by the control of a motor drive circu... | 07/12/2005 |
| 6844691 | Ventilator having an abnormal operation indication device A ventilator having an abnormal operation indication device includes a power supply circuit, a central processing unit, a fan motor, and a load sensing circuit. Thus, the load sensing circuit detects the abnormal operation signals through the sensor, so that the abn... | 01/18/2005 |
| 6794834 | Electric vehicle An electric vehicle driven by electric motors is provided. The vehicle is switched between forward travel, neutral and reverse travel by a directional speed lever which allows adjustment of the vehicle speed. When the directional speed lever passes through a neutral... | 09/21/2004 |
| 6756750 | Electric vehicle An electric vehicle driven by a pair of left and right electric motors is provided. The vehicle includes a controller for controlling the start of the vehicle. The controller performs such control as avoiding brake drag caused by the operation of the electric motors... | 06/29/2004 |
| 6737828 | Washing machine motor drive device A washing machine motor drive device drives a motor using an inverter circuit, which implements a constant torque control through a change in the torque-revolution speed characteristic of the motor. This facilitates an easy control of braking torque (negative torque... | 05/18/2004 |
| 6734647 | Working machine Control section determines necessary acceleration of a transporting section in accordance with an actual transporting speed, and also determines a correction coefficient corresponding to the number of rotations of an engine from among correction coefficients having ... | 05/11/2004 |
| 6601513 | Motor control method and apparatus, time recorder having same and impact type printing apparatus A motor control method and apparatus for stopping an object moved by a motor accurately at a predefined target position, shortening the time period required in stop control, in which the motor is driven at a first (high) speed up to a distance from the ta... | 08/05/2003 |
| 6573671 | Fan reliability A computer system or other electronic system includes a plurality of cooling fans configured to operate in parallel. The cooling fans are operated in a manner to decrease the operating time of a fan. The cooling fans can alternate in operation. Thus, oper... | 06/03/2003 |
| 6404150 | Accessory motor drive power supply system for an electric vehicle An electric vehicle accessory motor drive power supply system (40) that utilizes a single power supply design to provide efficient variable speed motor control to both brushless and brush-type DC motors (42,44). The power supply system includes at least o... | 06/11/2002 |
| 6337553 | Circuit arrangement and method for operating and electrical motor A circuit arrangement with a digital controller for operating an electric motor and a method for starting an electric motor are disclosed. Electric motors require a considerably higher current immediately after they have been switched on and during the ru... | 01/08/2002 |
| 6194850 | System and method for determining true ground speed in a locomotive A processor system and method for accurately determining true ground speed in a vehicle having wheel-axles propelled by traction motors is provided. The vehicle is equipped with a radar unit for providing a radar signal indicative of vehicle speed relativ... | 02/27/2001 |
| 5773940 | Power drive device A power drive device is disclosed that includes a motor, a control device coupled to the motor, and a rotatable reference axle member rotatably interlocked with the rotation of the motor. A first detection member detects a first phase and a third phase of... | 06/30/1998 |
| 5721511 | PWM variable voltage load driver A pulse width modulation driver is capable of regulating the average voltage applied to a load that is powered from a source having a wide range, e.g. 20 to 80 volts DC, of possible voltages. The driver cyclically interrupts the load current at a frequenc... | 02/24/1998 |
| 5701062 | Pulsing control for an inertial drive system for a multi-motor binary array vehicle A pulsing drive system delivers pulsed power signals to the driven wheels of a vehicle for improving the efficiency internal combustion or an electric motor driven vehicles. A controller receives signals such as velocity and demand, and communicates to a ... | 12/23/1997 |
| 5644200 | Driving electrical machine speed controlled power combined system and device A combined driving structure is made up of an engine and an electrical machine. The engine is connected to the electrical machine through a clutch which allows the electrical machine to be used as a starting motor for the battery, and when the engine is s... | 07/01/1997 |
| 5627438 | Pulsing control for an inertial drive system for a multi-motor binary array vehicle A pulsing drive system delivers pulsed power signal of the driven wheels of a vehicle for improving the efficiency internal combustion or an electric motor driven vehicles. A controller receives signals such as velocity and demand, and communicates to a m... | 05/06/1997 |
| 5345155 | Control system for electric vehicle An electric vehicle control system, according to the present invention, comprises at least two electric motors for independently driving left and right wheels of the vehicle, power supply unit for supplying power to the motors, unit for detecting command ... | 09/06/1994 |
| 5278477 | Drive system for a printing machine with several printing units A drive system for a printing machine with a plurality of printing units connected to one another via a gear train into which power is fed at different points by at least two motors, includes supplying each of the motors via a respective controllable, lin... | 01/11/1994 |
| 5270621 | Procedure controlling the motor of a crane The present invention relates to a procedure for selecting the mode of controlling the motor of a crane, or an equivalent lifting apparatus, when at least two alternative modes of controlling the motor are available, and at least one of the modes involves... | 12/14/1993 |
| 5248922 | Multi-DSP, multi-functional motion controller A motion controller, which is adaptable to a variety of different motors, provides motor control signals to the motors of a multi-axis coordinated system as a function of position and velocity commands from a host computer. The motion controller configure... | 09/28/1993 |
| 5087864 | Apparatus for selectively controlling a plurality of electric motors An apparatus for selectively controlling a plurality of electric motors for driving individual work objects, the apparatus including an electrical switch which is adapted to produce predetermined speed signals for the electric motor selected, a programmab... | 02/11/1992 |
| 5083066 | Method of controlling synchronous operation of machine tool In a machine tool having first and second spindles, which are connected to respective spindle motors and control circuits each control circuit including a velocity controller and a position controller, and which simultaneously grasp the same workpiece, in... | 01/21/1992 |
| 5029040 | Output circuit having a fail-safe function An output circuit having a fail-safe function with: a control signal generating circuit which generates a control signal to control the current of a load and includes an operational amplifier which amplifies a difference between a control value and a feed... | 07/02/1991 |
| 4988930 | Plural motor fan system with improved speed control A two motor assembly for driving two fan blades to move air through a heat exchanger comprising a first two speed DC motor comprising magnets for establishing a fixed magnetic field, an armature rotor rotatable to drive a first fan blade, a multiplicity o... | 01/29/1991 |
| 4956589 | Integrated tool control for work station A work station having a plurality of tools permits selection, operation and speed control of individually selected tools using a common speed control for each tool. Each of the tools includes a tool head such as a cutter, rasp, or other forming or finishi... | 09/11/1990 |
| 4947089 | Apparatus for selectively controlling a plurality of electric motors An apparatus for selectively controlling a plurality of electric motors for driving individual work objects, the apparatus including an electrical switch which is adapted to produce predetermined speed signals for the electric motor selected, a programmab... | 08/07/1990 |
| 4912377 | Device for driving several cables of a transportation installation operating in synchronism and method for the automatic regulation of the synchronous drive of these cables A technique for driving with continuous synchronized movement a plurality of parallel pulling cables of a transportation installation in a direction parallel to the cables comprising at least one vehicle connected in line to the cables. Each cable is driv... | 03/27/1990 |
