Bizarre Patents
Microwave Oven With Removable Storage Cassette in Dashboard of Motor Vehicle
A microwave oven adapted for use within a motor vehicle dashboard area. The microwave oven has a removable storage cassette, and slidable platforms for securing and serving containers of beverages and foods.
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| Number | Title | Issue Date |
| 8169172 | Synchronous disturbance suppression in a variable speed motor drive A variable speed drive for an electric motor has an inverter for receiving pulse width modulation controls. The inverter communicates power signals to a poly-phase electrical motor. A resolver communicates signals from the poly-phase motor back to a motor control. T... | 05/01/2012 |
| 7626351 | Motion controller and system identifying method A motion controller accurately identifies system constants, such as inertia, viscous friction coefficient, and constant disturbance, without requiring operation, even in cases where viscous friction and/or constant disturbance are present. An identifier includes a t... | 12/01/2009 |
| 7181294 | Vibration control device A control device for controlling the motion of a movable part in a machine while suppressing vibration generated in the movable part. The control device includes a state-variable estimating section for estimating a state variable of a controlled system in the machin... | 02/20/2007 |
| 6912426 | Method for determining time constants of a reference model in a cascade controlling circuit A method for determining at least one time constant of a reference model, which is designed as a 2nd order time-delay element of a machine. The method includes detecting an oscillation frequency of an undamped machine oscillation and determining an optimized value o... | 06/28/2005 |
| 6877557 | In-well monitoring and flow control system An in-well monitoring and flow control system with an improved power supply. A separate high voltage (18) and low voltage power supply (23) is provided together with a cable (14) which has at least two separate cores; one core (24) for hi... | 04/12/2005 |
| 6586901 | Methods and apparatus suitable for facilitating control of an aircraft rudder A method and an apparatus for controlling aircraft rudder movement are disclosed. The system including a yaw damping control portion integrated with a directional compensation rudder control portion, such that the system may simultaneously provide yaw dam... | 07/01/2003 |
| 6013995 | Method and apparatus for adaptive feedforward control with reduced noise during track seek operations An adaptive feedforward control system for reducing noises during a track seek operation. A servo control apparatus of the invention generates a first adaptive feedforward, in which the first adaptive feedforward adaptively follows a current command for s... | 01/11/2000 |
| 5708342 | Method of controlling acceleration/deceleration time constants for robot The invention is directed to a method of controlling acceleration and deceleration time constants for a robot wherein the acceleration and deceleration time constants of a servo motor are each set at an optimum value based on the amount of movement, load,... | 01/13/1998 |
| 5691614 | Servo system adjusting method and servo control system A servo system adjusting method for an integration-proportional differentiation type compensation system for generating a control input by summing an integration of a control error, a controlled amount which is an output of an object to be controlled and ... | 11/25/1997 |
| 5517100 | Method of controlling a servo motor To control a servo motor, after the sign of a shift command is inverted, a first offset amount Vmo is added to a speed command during a period the motor rotates by the amount of "a" so that inversion of sign of an integral value of the speed loop is made ... | 05/14/1996 |
| 5274312 | Method and apparatus for controlling a sliding elevator door A method for controlling a sliding door system determines the masses and the frictional forces of all movably interconnected parts of the sliding door system. The system has a door leaf which is moved in an opening learning travel and a closing learning t... | 12/28/1993 |
| 5272424 | Generating device of phase current instruction value for alternating current servomotor and the generating method thereof A generating device of a phase current instruction value for an A.C. servomotor and the generating method thereof, drives a synchronous A.C. servomotor. A sine wave, namely, a phase current instruction value for commutation of the A.C. servomotor driver c... | 12/21/1993 |
| 5184055 | Device for positioning control A device for positioning control includes a movable stage; an acceleration sensor disposed on the movable table; a feedback loop for controlling movement of the movable table; and an acceleration feedback loop provided in relation to an acceleration signa... | 02/02/1993 |
| 5063337 | Electric motor regulation to obtain desired speed curve Regulation of the speed of an electric motor is accomplished by counting the number of periods of AC current and modulating the pulses supplied to the motor. The speed of the motor is regulated according to a speed reference curve. The technique is especi... | 11/05/1991 |
| 4990840 | Method and system for controlling a machine tool such as a turning machine A method and system (10) for controlling radial movement of a machine tool, such as a turning machine, relative to a workpiece (11), is characterized by a digital filter (70, 72, 74) which produces a filtered final control signal which is a function of bo... | 02/05/1991 |
| 4777418 | Motor control method and apparatus A motor control method and apparatus incorporated in a feeding system. Information on a distance which an object is fed after the motor is commanded to stop and before it is actually stopped is determined in advance. Based on the distance information, a r... | 10/11/1988 |
| 4673852 | Device for the electric low-voltage driving of a rotatable mass having high inertia and a motor which is part of said device An electric device for driving a rotatable mass having a high inertia, said device comprising an electric motor supplied with power by a low-voltage dc source through an electronic energy converter supplying power to the armature (11) of the motor; the fi... | 06/16/1987 |
| 4664685 | Linear drive motor control in a cryogenic refrigerator In a Stirling cryogenic refrigerator, the movement of the displacer is monitored by sensing the back EMF in the displacer drive coil throughout displacer stroke. The back EMF signal is applied through a feedback circuit to control the phase relationship o... | 05/12/1987 |
| 4609855 | Adaptive servomotor control A servomotor controller provides high speed servomotor positioning be means of an on line adaptive state-feedback control algorithm. Servomotor position and velocity are the feedback states and each has an associated gain selected by means of a servomotor... | 09/02/1986 |
| 4562562 | Tracking system for controlling the radial positioning of a transducer on a disc medium A data track searching device capable of switching between two modes; one being the rough searching mode in which a transducer is displaced at a high velocity to a desired track and the other being the fine searching mode which follows the rough searching... | 12/31/1985 |
| 4517503 | Method and apparatus for normalizing the speed of an element positionable by a servomechanism A speed normalization circuit for eliminating the need to fine tune a servomechanism, such as a daisy wheel printer, after manufacture, for example, in order to compensate for speed variations caused by tolerance variations throughout the manufacturing pr... | 05/14/1985 |
| 4498037 | Velocity servo controller A motor compensation network for use with a two-degree of freedom velocity servo controller includes first and second compensation means. The first compensation means receives a signal representing a difference between a velocity command signal and a velo... | 02/05/1985 |
| 4491776 | Servo operated digital positioning control system A closed loop servo operated digital control system in which a dynamically operable moveable member can be effectively and accurately controlled during movement from an initial position to a command position by compensating for both velocity error and for... | 01/01/1985 |
| 4488098 | Position control system for a movable member A position control system has a motor for moving a movable member which is driven, at first, by a non-controlled signal. Responsive to a position error signal which represents a difference between a present position and a commanded position, and to a velo... | 12/11/1984 |
| 4473786 | Method for controlling angular position and apparatus therefor A method and apparatus for controlling the angular position of a motor by controlling the revolution of the motor in response to a given positioning command value commanding a predetermined angular position of the motor shaft so as to stop the motor shaft... | 09/25/1984 |
| 4395904 | Device for damping oscillations This invention relates to devices for damping oscillations in electromechanical and automatic control systems comprising actuators, various drives and flexible members providing mechanical coupling between the actuators and drive motors. In the general ca... | 08/02/1983 |
| 4386300 | Apparatus for reproducing disc record Apparatus for maintaining a constant linear velocity for a PCM disc record which includes a detector for optically detecting the PCM signal on the record and supplies the output to a differentiating circuit and a rectifier circuit with the output of the r... | 05/31/1983 |
| 4353017 | Velocity compensation for limited displacement motors A velocity-compensation circuit for a limited-displacement motor comprises a bridge circuit incorporating the control winding of the motor in a first arm. An adjacent bridge arm includes both an inductance and a resistance whose ratio is the same as that ... | 10/05/1982 |
| 4342379 | Time controlled elevator door motion An elevator system has a microprocessor-based cab controller mounted directly on the elevator car, the elevator door mechanism is connected to a transducer which provides signals as a function of the position of the door mechanism, and the cab controller ... | 08/03/1982 |
| 4305481 | Elevator door motion modification An elevator system includes a microprocessor-based cab controller mounted directly on an elevator car, which controls the operation of the elevator door. Elevator door motion is commanded in response to the difference in actual door velocity from a desire... | 12/15/1981 |
| 4300662 | Elevator door motor compensations An elevator system includes a microprocessor-based cab controller mounted directly on an elevator car, which controls elevator door motion in response to the difference between elevator door velocity and a desired dictated door velocity. The signals drivi... | 11/17/1981 |
| 4300663 | Elevator door motion mode control An elevator door motion control is operative in either of two modes, the first mode being set in the case where door motion begins with the doors fully open and closed and no special conditions, such as initiation, exist. In this mode, door motion is cont... | 11/17/1981 |
| 4280083 | Apparatus for limiting acceleration in a servosystem A servosystem in which means are provided so as to prevent impartation of an excessively high acceleration to its movable part even when an abnormal input signal is applied to the servosystem. The apparatus comprises an acceleration limiter circuit which ... | 07/21/1981 |
| 4242622 | Stabilized non-linear servomechanism A servomechanism comprising an operational amplifier; a servomotor driven by the amplifier, the amplifier having limited output voltage and current capabilities, i.e. being non-linear; a position sensor; and a position error detector. A negative feedback ... | 12/30/1980 |
| 4215403 | Active suspensions for vehicles An active suspension for a vehicle, in particular an active tilting suspension for a railway vehicle, has a first main control loop in which a deficiency signal indicative of the difference actuator response and demand is fed through a low-pass filter to ... | 07/29/1980 |
| 4135217 | Utilization of stored run-out information in a track following servo system A servo system including a recording head to sense servo data on a disk track for fine positoning of the head and an external transducer for generating signals representing the coarse position of the head. A micro-processor stores the coarse positon signa... | 01/16/1979 |
| 4099112 | Method and means for seeking magnetic tracks In connection with a head positioning device for magnetic disc drives in which a low cost implementation for seeks of varying lengths is important and optimum seek time is secondary, a system is disclosed in which head velocity, at least during the final ... | 07/04/1978 |
| 4031443 | Apparatus for positionally controlling a movable head assembly An apparatus for positionally controlling the movable head assembly of a magnetic disc memory unit. In a first state, the head assembly is accelerated under substantially free conditions. In a second or deceleration state, the assembly speed is compared w... | 06/21/1977 |
| 4016396 | Precision tool and workpiece positioning apparatus Apparatus for positioning a workpiece and tool in a precise location relative to each other by positioning in a predetermined site the workpiece, and then positioning the tool in a precise predetermined positon relative to the site in minimum total time. ... | 04/05/1977 |
| 3940672 | Tape recording and playback control circuit An electronic control circuit for automatically stopping the tape drive motor of a magnetic tape recording and playing unit. A set of contacts is provided in the circuit to detect electrically conductive means located at preselected points along the magne... | 02/24/1976 |
