Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 8044614 | Wiper apparatus control method and wiper control system A wiper apparatus includes: a wiper blade driven by a motor; and a wiper blade driven by a motor. The motors are drive-controlled by control microcomputers, respectively. The control microcomputers are connected to each other through a communication line. While exch... | 10/25/2011 |
| 7538501 | Power system comprising several synchronous machines synchronously self-controlled by a converter and control method for such a system A power system including at least two self-controlled synchronous machines operating in parallel synchronously, a central three-phase converter to which all these machines are connected in parallel, at least two rotor position sensors. The system also includes at le... | 05/26/2009 |
| 7466086 | Motor drive unit A motor drive unit comprises a DC power source, a plurality of inverter circuits for converting the a power of this DC power source to an AC power, current detectors for detecting an output current of at least one of those plurality of inverter circuits and a contro... | 12/16/2008 |
| 7432674 | Control system A transmission path delay is set in a shift setting register. A slave unit generates a PRE_ITP signal in response to a timing signal (ITP signal) issued by a master unit. The phase difference between this PRE_ITP signal and the ITP signal unique to the slave unit is... | 10/07/2008 |
| 7425806 | System and method for controlling a variable speed drive A variable speed drive is provided having a converter to convert an AC voltage to a DC voltage, a DC link to filter and store energy from the converter, and a plurality of inverters. Each inverter is configured to convert a DC voltage to an AC voltage and is electri... | 09/16/2008 |
| 7417386 | Electronic line shaft A method and assembly for synchronizing machine operations, the assembly comprising a reference generator for generating a speed reference signal and a position reference signal, a plurality of slave units, each slave unit including, a mechanical device, a separate ... | 08/26/2008 |
| RE40165 | Method and device for synchronization control A synchronization control device and a synchronization control method are provided in which it includes controllers Am and As1 of a master section and a slave section for accurately synchronizing rotational frequency and rotation phases of driving electric mo... | 03/25/2008 |
| 7304444 | Battery vehicle and method of controlling the same A battery vehicle includes a battery configured to supply DC power, and first and second motors configured to drive first and second wheels in response to first and second motor drive powers, respectively. A first inverters generates a first control data and supplie... | 12/04/2007 |
| 7292002 | Control method for twin synchronization In a control method for a twin synchronization in which two motors for driving two axes (moving elements 3) mechanically fastened to each other by a fastening part (a fastening jig 6) are synchronously operated, one of the two axes is operated at low s... | 11/06/2007 |
| 7282873 | Mutual active cancellation of fan noise and vibration A multi-fan apparatus and method incorporates mutual active cancellation of fan noise and/or vibrations. The multi-fan apparatus includes two or more fans circuits, each comprising a fan, a fan speed controller and a separate tachometer, and a fan phase controller. ... | 10/16/2007 |
| 7276865 | Power output apparatus, motor driving method and computer-readable recording medium having program recorded thereon for allowing computer to execute motor drive control A power output apparatus includes two motor generators, a DC power supply, a relay, three inverters and a control CPU. One of the motor generators includes three-phase coils. The DC power supply is connected via the relay between respective neutral points of the thr... | 10/02/2007 |
| 7226020 | Apparatus for driving and adjusting flaps hinged to an aircraft Flaps, for example leading edge flaps and/or trailing edge flaps of an aircraft wing, are driven and adjusted by respective drive units. Drive shafts of neighboring flaps are coupled to each other by a differential gear. The differential gear is thus coupled to a ma... | 06/05/2007 |
| 7202616 | Synchronous control method and device of the same A synchronous control device which is provided with drive motors and a central control unit generating a synchronous reference signal and with which the drive motor is controlled to rotate synchronously with the synchronous reference signal supplied from the central... | 04/10/2007 |
| 7196488 | Motor driving apparatus A motor driving apparatus capable of drivingly controlling a plurality of inverter units with a single motor driving command from a motor control unit, and thereby control a large-capacity motor or the like. The motor control unit sends out a single motor driving co... | 03/27/2007 |
| 7161319 | Movable barrier operator having serial data communication A wall control unit for a movable barrier operator sends baseband signals over a wire connection to a head unit of a movable barrier operator to command the movable barrier to perform barrier operator functions. The wall control unit has a wall control unit port for... | 01/09/2007 |
| 7148638 | Method and apparatus for embedding motor error parameter data in a drive motor of a power driven wheelchair A drive motor assembly for a power driven wheelchair comprises: a stator housing for containing field coils of a stator of the motor assembly; at least one sensor disposed in the stator housing for sensing rotation of the motor; a memory storing motor error paramete... | 12/12/2006 |
| 7148635 | Motor drive with synchronized timing A motor control system for controlling a motor includes control logic and a motor controller. The control logic is operable to generate a control signal at a first periodic time responsive to a synchronization signal. The motor controller is operable to generate a d... | 12/12/2006 |
| 7139530 | Method and apparatus for calibrating a reference oscillator A method and apparatus for calibrating a reference oscillator and use of a calibrated reference oscillator is disclosed. To gain cost reduction advantages, a less accurate reference oscillator is utilized in a wireless communication device. The cost benefit is gaine... | 11/21/2006 |
| 7135833 | Motor control for flux-reduced braking A method and apparatus for braking an AC motor in the higher portion of its speed range includes substantially reducing flux before applying reverse torque commands to brake the motor. A DC link bus regulator is employed to prevent increases in bus voltage and frequ... | 11/14/2006 |
| 7109671 | Device and method of a back EMF permanent electromagnetic motor generator This invention is a back EMF permanent electromagnetic motor generator and method using a regauging process for capturing available electromagnetic energy in the system. The device is comprised of a rotor with magnets of the same polarity; a timing wheel in appositi... | 09/19/2006 |
| 7105969 | Two speed electric motor with link wound dual-commutator and dual-armature winding A permanent magnet D.C. electric motor includes a stator housing, permanent magnet structure, and an armature assembly. The armature assembly includes a shaft rotatably mounted in the stator housing, lamination structure, first and second coil windings associated wi... | 09/12/2006 |
| 7097329 | Underwater lighting fixture with color changing electric light assembly An underwater lighting fixture adapted for installation in a wall of a swimming pool. The lighting fixture includes a housing having an interior cavity and a transparent cover. A color changing electric light assembly is provided in the interior cavity. The light as... | 08/29/2006 |
| 7095203 | Numerical controller A numerical controller which, after once stopping a slave axis during superposing control, can easily resume the superposing control. In the superposing control, a motion amount for a master axis and a motion amount for the slave axis are added to a workpiece coordi... | 08/22/2006 |
| 7088061 | Drive system for a group of machines A drive system powering a group of machines each fitted with a rectifying unit, wherein the inputs of the control devices of the machines' drive motors are interconnected by an electrical bus which implements a power exchange. The system enables swapping current fro... | 08/08/2006 |
| 7088062 | Electronic variable speed control of dual motor configuration A dual motor configuration 10 includes a primary brushless motor 18 electronically controlled to be driven at various speeds throughout a range of motor speeds. A secondary brush motor 24 electronically controlled be driven at various speeds thr... | 08/08/2006 |
| 7023169 | Method for changing speed of motor group A method for changing the speed of a motor group, in particular for starting or stopping it, the motor group comprising a plurality of squirrel-cage induction motors or synchronous motors and network converters arranged for their control, when the nominal supply pow... | 04/04/2006 |
| 7005815 | Electric actuator system The detection of a pulse signal in an initialization pattern is ensured regardless of the position where a DC motor is stopped. A CPU detects the pulse signal generated by the pulse generator and an angle of rotation of a rotating shaft, and controls an angle of rot... | 02/28/2006 |
| 6989642 | Method and apparatus for embedding motor error parameter data in a drive motor of a power driven wheelchair A drive motor assembly for a power driven wheelchair comprises: a stator housing for containing field coils of a stator of the motor assembly; at least one sensor disposed in the stator housing for sensing rotation of the motor; a memory storing motor error paramete... | 01/24/2006 |
| 6971473 | Steering system for vehicle Steering apparatus for transmitting a driving force of a motor through a gear mechanism to a rack shaft of a steering system and applying the driving force to steering road wheels in a steering direction. The apparatus has first and second motors. In the transmissio... | 12/06/2005 |
| 6972532 | Controlled motor coast in media handling system By controlling all motors so that they all decelerate at substantially the same rate, buckling of media in a media handling system is substantially eliminated on shutdown. Preferably, the deceleration rate of the highest inertia motor is used as the common decelerat... | 12/06/2005 |
| 6943523 | Brushless motor control system For self-switching control of a brushless motor (10) powered by means of a predetermined electrical cycle in order to cause the rotor to advance, the control system comprises an indicator device (100) for indicating the mechanical position of the rotor... | 09/13/2005 |
| 6933687 | Dual motor configuration with primary brushless motor and secondary integrated speed control motor A dual motor configuration 10 is provided for driving two fans for moving air to cool an engine. The dual motor configuration includes a primary brushless motor 18 constructed and arranged to be electronically controlled to drive a first fan 16 ... | 08/23/2005 |
| 6907318 | Multi-station robotic welding assembly A multi-station robotic welding assembly includes a mounting platform, and a plurality of robots attached to the mounting platform and located in respective weld stations. Each of the robots includes an elongated movable arm and wrist. A welding torch is attached to... | 06/14/2005 |
| 6888334 | Synchronization control method and synchronization control device A reference variable having a linear relationship with the angular position of a master axis is set, and a correspondence between this reference variable and the displacement of a slave axis is stored in a data table. One execution stage is specified by setting a st... | 05/03/2005 |
| 6876162 | Method and system for controlling drive motors of at least two machines The invention relates to method and apparatus for controlling the powering of electric drive motors (8) of a group of at least two machines (2, 3, 4), the motors operating in periodic motions, wherein the periodic motions are mutually coordinated in a ... | 04/05/2005 |
| 6864646 | Multiple inverter system with low power bus ripples and method therefor A multiple inverter system is powered from a common energy source such as a battery. First and second inverters are coupled to the common energy source and drive corresponding motors. First and second controllers provide pulse width modulated signals, modulated with... | 03/08/2005 |
| 6856106 | H-bridge apparatus and method An apparatus has a first H-bridge having a first motor contact on a shared first side and a second motor contact on a second side. The apparatus also has a half H-bridge having a third motor contact on a third side, wherein the shared first side of the first H-bridg... | 02/15/2005 |
| 6815915 | Device system for multiple motors A device for supplying energy by means of a first DC voltage source e.g. in the form of a DC voltage bus, a drive system comprising several electric motors is connected to said DC voltage bus. The electric motors are comprised e.g. in a number of yarn feeding device... | 11/09/2004 |
| 6809497 | Drive unit for brushless fan motor and control method thereof A drive unit for a brushless fan motor capable of easily controlling the rational speed of the motor without using PWM control. A power control circuit is provided for controlling the rational speed of the rotor by controlling the on/off operation of power feed semi... | 10/26/2004 |
| 6757586 | Multiple arm robot arrangement An improved robot arrangement for performing predetermined tasks, such as paint finishing, features equipping a robot with a plurality of manipulatable arms, with at least two of the arms performing like operations. Alternatively, a plurality of commonly controlled ... | 06/29/2004 |
