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| Number | Title | Issue Date |
| 7696713 | Drive control method, drive control device, belt apparatus, image forming apparatus, image reading apparatus, computer product Driving of a pulse motor is controlled in such a manner that a rotating body driven by the pulse motor rotates at a uniform angular velocity. Angular displacement of the rotating body is detected, a difference between a detection value of the angular displacement an... | 04/13/2010 |
| 7365508 | Motor, actuator and controller thereof A motor comprises: coil on/off switching devices for switching between an on-state wherein current is supplied to the coils, and a first off-state wherein the coil terminals are open-circuited or a second off-state wherein the coil terminals are short-circuited; and... | 04/29/2008 |
| 7341565 | Passive motion machine providing controlled body motions for exercise and therapeutic purposes A passive motion exercise and/or treatment apparatus is provided which includes a main support assembly for supporting at least the head and torso of a user. The main assembly includes three support members which, in one mode of operation, are disposed in a common p... | 03/11/2008 |
| 7285930 | Method and device for controlling a multiphase electronically commutated motor A method is specified for controlling a multiphase motor that is commutated by an inverter-side bridge circuit, in the course of which a particularly precise and technically simple detection of a control-relevant variable of a considered motor phase, in particular o... | 10/23/2007 |
| 7275533 | Pressure controller for a mechanical draft system Systems and method for controlling the flow of air through a mechanical draft system are disclosed herein. A pressure controller for controlling air pressure comprises an appliance controller configured to control the operation of a plurality of appliances, an intak... | 10/02/2007 |
| 7112215 | Digitized control three-dimensional spinal orthopaedic device This present invention relates to a digitized control three-dimensional spinal orthopaedic device for cure injured spinal. The device comprises a bed body, a head-chest plate and a breech-leg plate. The bed body has a frame configuration, and comprises a top bed bod... | 09/26/2006 |
| 7093311 | Patient examination support system A patient examination support system includes a positioning display that displays the patient position required for an examination and/or treatment. Characteristic parameters for the examination and/or treatment of a patient via an X-ray or radiological system are m... | 08/22/2006 |
| 6831433 | Drive control apparatus A drive control apparatus comprises a drive signal supply unit for generating, when a power-supply voltage is supplied to the drive control apparatus, a drive signal, which is used for driving a load from this power-supply voltage, and for supplying this generated d... | 12/14/2004 |
| 6719677 | Automatic tool changer The present invention is an automatic tool changer. The automatic tool changer is adapted to perform a tool magazine indexing operation in response to an indexing command and perform a tool changing operation in response to a tool changing command. If an indexing co... | 04/13/2004 |
| 6636010 | Precision dosage apparatus, system and method A liquid dispensing system increases the precision, reliability, and safety of dispensing medications and other liquids. An electronic brake grounds a power terminal of a pump motor to absorb the kinetic energy of the motor and other mechanically coupled ... | 10/21/2003 |
| 6541934 | Electric drive control In a method for controlling an electric drive, a controlled variable is adjusted to a desired value. To protect the electric drive, the controlled variable is first adjusted to the desired value in a precise manner. Thereafter, the control operation is in... | 04/01/2003 |
| 6307464 | Method and apparatus using phases for communication in thermostat circuit In a receiver circuit module (22) having a microcontroller (U1), an output line (FILTER_LED) connectable to a source circuit module (20) is also used as an input. A switch (SW2) disposed in the source circuit module is closed to change the wave form which... | 10/23/2001 |
| 5955859 | Interface module between a field bus and electrical equipment controlling and protecting an electric motor The present invention concerns an interface module between a field bus and electrical equipment controlling and protecting an electric motor. The interface module includes an integrated circuit having data pins connected via input/output circuits to conta... | 09/21/1999 |
| 5926002 | Pendent with safety features for patient handling apparatus The application describes a control pendant for controlling a multi-segment patient table to assume a variety of different positions or configurations. The pendant has safety features including automatic shutoff of power to the keys under selected conditi... | 07/20/1999 |
| 5572104 | Furnace control apparatus An electric control for gas furnaces which controls a two speed main blower fan and an induction draft fan based on inputs from a room thermostat, a high limit and an ignition control including a gas valve. The control has a circuit board having a power s... | 11/05/1996 |
| 5568592 | System and method for conserving power in an optical autochanger A system is disclosed for conserving power in a robotic arm device. The robotic arm device is responsive to a motion command and controlled by a servo loop having a motor, a motor driver, and a motor encoder. The system positions the robotic arm to a stow... | 10/22/1996 |
| 5554916 | Method of starting a sensorless motor A method of starting a sensorless motor comprising a stator provided with three-phase stator coils to which an exciting current is supplied, and a rotor provided with a rotor magnet for obtaining a rotating torque by the electromagnetic interaction of the... | 09/10/1996 |
| 5272427 | Furnace control apparatus and method An electric control for gas furnaces which controls a two speed main blower fan and an induction draft fan based on inputs from a room thermostat, a high limit and an ignition control including a gas valve. The control has a circuit board having a power s... | 12/21/1993 |
| 5065079 | Method and apparatus for controlling lumbar support device A method and apparatus for controlling a lumbar support device provided in the seat back of an automotive seat. The control for support against the lumbar of an occupant on the seat is effected through manual and automatic control modes, and the automatic... | 11/12/1991 |
| 4818924 | Electric actuator for automotive air conditioning systems An electric actuator apparatus particularly suitable for use as part of an automotive air conditioning system. The apparatus uses a direct current motor to drive a final output element in accordance with an input voltage signal. The apparatus is inherentl... | 04/04/1989 |
| 4714363 | Print control device for a dot matrix printer A print control device for use with a portable battery powered dot matrix printer has a DC motor which moves a carriage with a dot generating mechanism and is provided with a shaft position signal generator. A control circuit responds to the anglular posi... | 12/22/1987 |
| 4617505 | Voltage supply A voltage supply for a servomotor (9) is effected via a wiper (10) which slides on two conductive paths (5, 6) which are displaceable in longitudinal direction. The conductive paths (5, 6) have, at their opposite ends, a driver (15, 17) against which the ... | 10/14/1986 |
| 4514667 | Method and apparatus for the constant speed control of brushless DC motors Method and apparatus for the constant speed control of a brushless DC motor, whose pole windings receive a pulsed control voltage between their commutation points, control being a function of the speed characteristics of the motor, and the commutation poi... | 04/30/1985 |
| 4481588 | Method and apparatus for adjusting installation position of switch members in numerical control system A method and apparatus for adjusting the positions of switch members such as a deceleration limit switch installed on a machine tool in a numerical control system for controlling the machine tool on the basis of numerical control data and for executing pr... | 11/06/1984 |
| 4295082 | Pulse width modulated servo circuit A motor servo circuit is disclosed. The motor in the motor servo circuit is driven by an output which is obtained by logically adding output pulses of a pulse stretcher circuit which stretches a pulse width of error pulses generated from an OR circuit whe... | 10/13/1981 |
| 4293806 | Single and multicycle control device for electric motors A cycle control device employing a parallel switching circuit to control a single or a predetermined number of cycles of a motor driven output shaft. A latching and a cycle switch in the parallel circuit are providing an overlapping switching sequence whi... | 10/06/1981 |
| 4263539 | Automatic antenna positioning apparatus Apparatus for rotating an antenna to a predetermined position and maintaining said position is disclosed. The system comprises an antenna position sensing signal source, a desired position signal source, both of which provide analog signals, position comp... | 04/21/1981 |
| 4159429 | Electronic tracer unit for measuring machines A tracer unit for use with measuring machines is described. The main feature of this tracer unit is to comprise a plurality of tracer tools, each of which is provided with a rod arranged to come into contact with a surface to be scanned, a movable body connect... | 06/26/1979 |
| 4077000 | Directional antenna azimuth control system A system for selectively aiming a directional receiving antenna in one of a plurality of different directions respectively associated with a plurality of broadcast transmitters differently located in azimuth relative to the antenna in response to the entr... | 02/28/1978 |
| 4048630 | Door operator with automatic control of auxiliary circuit A door operator is disclosed which has a motor connected to open and close a door; for example, a garage door and a lamp is provided to illuminate the interior of the garage. Motor and lamp energization circuits are provided as controlled by switches; for... | 09/13/1977 |
| 4037519 | Hydraulic system An electro hydraulic system for controlling a hydraulic function includes a pump and a reservoir connected to the function through a manually operable, electro-hydraulic control valve. The valve is positionable to either side of a neutral ports blocked po... | 07/26/1977 |
| 3975669 | Electronic damper motor control There is disclosed a motor control circuit that is particularly useful for the control of a damper motor in a heating and ventilating system. The control circuit comprises a bridge circuit having a pair of operational amplifiers with cross connected input... | 08/17/1976 |
