Matches 1 - 50 out of 167 1 2 3 4 >

AcclaimIP-ad

Match Document Document Title
8797048 Capacitive rotation sensor  
A capacitive rotation sensor for detecting the position of an object moving relative to a stationary object, comprising a shaft rotatably supported in a housing flange, said shaft being connected...
7880609 System and method for real-time management of mobile resources  
A system and method are disclosed for real-time management of mobile resources. The management system includes an on board system, a processor, and a data center. The on board system is provided...
7554441 System and method for real-time management of mobile resources  
A system and method are disclosed for real-time management of mobile resources. The management system includes an on board system, a processor, and a data center. The on board system is provided...
7047150 Method for determining a rotor position of a synchronous motor  
In a method for determining the rotor position of a synchronous motor, a plurality of current vectors having different directions is applied to the synchronous motor. Absolute values of required...
7019672 Position sensor  
A low cost x-y digitising system is described for use in consumer electronic devices, such as portable digital assistants, mobile telephones, web browsers and the like. The digitizer includes a...
6980134 Signal processing apparatus and method  
Processing circuitry is provided for processing signals received from, for example, sense coils forming part of a position encoder used to encode the relative positions of two relatively movable...
6703943 Assembly for signal transfer between a receiving station and a transmitting station as well as for power supply of the transmitting station  
In an assembly for signal transfer between a receiving station and a transmitting station and for power supply of the transmitting station where these two stations are connected via a two-wire...
5815091 Position encoder  
In a linear position encoder, a support is provided upon which a pair of phase quadrature windings are mounted. The windings are arranged to have a sinusoidal magnetic sensitivity characteristic...
5304909 Resolver excitation signal generating apparatus  
The present invention relates to a resolver excitation signal generating apparatus for supplying a reference excitation signal to a resolver attached to a motor for driving a robot or a computer...
5196776 Waveform generator for a resolver  
A waveform generator for a resolver transducer or the like is described. Such generator forms two 3-level waveforms which approximate sinusoidal waveforms for the excitation and/or output...
4994799 System for the electrical transmission of an angular position  
In a system for the electrical transmission of an angular position, in particular from a measurement instrument to an indicating instrument, in which a transmitter and a receiver each have a rotor...
4906909 Analog electronic control differential transmitter  
A linear, analog, synchro control differential transmitter for implementing he common synchro CDX function whereby a scaled linear analog voltage is used as input instead of a mechanical shaft...
4796188 Phase rotation of signals  
Phase rotation of an input digital signal is effected by applying the input signal to a look-up table in a memory together with a rotation control signal. The output of the memory is the phase...
4712106 Phase analog encoding system with compensation  
A phase analog encoding system with compensation for the phase shift error inherent in a resolver position transducer. The inherent phase shift error in a resolver position transducer is...
4710770 Phase modulation type digital position detector  
A digital mode phase modulation type position detector utilizing a resolver as the phase modulating element is disclosed in which the phase of the modulated signal is determined by comparing it...
4598289 Control device for a synchro receiver  
A control device suitable for synchros comprising three stator windings. The device comprises four circuit branches with the inputs of the first and the second branches interconnected to receive a...
4486845 Resolver to incremental shaft encoder converter  
A circuit for duplicating the function of an incremental shaft encoder comprises a rugged resolver connected to a hybrid digital-analog circuit which generates output signals identical to those of...
4475105 System for detecting mechanical movement  
A system for detecting mechanical movement of a body under detection comprises: a synchro generator having multiple-phase primary windings and a secondary winding, either of the primary windings...
4472669 Compensated resolver feedback  
A method and apparatus by which the output value of a resolver position detection system is compensated for systematic phase shift errors produced by signal conditioning circuitry through which...
4360889 Rotary position indicating circuit  
A circuit for indicating angular position of a rotary member comprising a resolver including an amplitude stabilized sine-cosine generator coupled to quadrature windings of the resolver for...
4349822 Inductive potentiometer  
An inductive potentiometer for supplying a d.c. output voltage, which is linearly variable as a function of the rotation angle of a spindle. The potentiometer is constituted by a synchro-resolver...
4334179 Apparatus for demodulating a pulse excited synchro position sensor  
In a device having a synchro resolver and a microprocessor, the apparatus of the present invention utilizes a pulse excitation technique for converting a synchro output signal to a digital format....
4327363 System for transmitting heading information from a compass to several followers  
A synchro transmitter having a rotor driven by a compass communicates the heading information from that compass to a plurality of loads via respective synchro receivers whose rotors are energized...
4316189 Electromechanical display apparatus  
A display apparatus provides a three-dimensional pictorial representation of the position of a movable first member in relation to a stationary second member for the purpose of remotely...
4268819 Synchro motor type instrument  
A synchro receiver of the instrument according to this invention has a stator upon which a three-phase winding is wound and a rotor which forms a flat plate and has two magnetic poles made of high...
4253051 Phase locked loop having electrical zeroing  
In apparatus for measuring the relative position between a fixed member and a movable member, as in a flight simulator, means for electrically offsetting the position measurement to compensate for...
4193059 Attitude indicator comparator warning system  
The indications of attitude indicators at two different indicating locations that are indicating the same parameter but actuated from different sources, are monitored for the same indication by...
4157536 Synchronous transmission device of the vernier resolver type incorporating compensation of parasitic coupling  
A synchronous transmission device of the vernier resolver type, in which a variable reluctance is produced by the rotation of an unwound magnetic rotor, wherein unwanted inductive and capacitive...
4138661 Attitude indicator having expanded scale  
A roll and pitch servomechanism for use in an attitude indicator is shown having an expanded scale in which a nonlinear electrical circuit is combined with a nonlinear mechanical indicator to...
4134106 Absolute resolver angle to digital converter circuit  
An absolute resolver digitizer for a numerical control system generating a digital number indicative of the absolute angular position of a resolver's rotor within a given revolution is disclosed...
4097922 Automatic real time navigation communicator  
An automatic real time navigation communicator that communicates between vehicle mounted speed and heading sensors and the vehicle mounted satellite navigator. The communicator automatically and...
4062005 Synchro-to-digital converter employing common processing apparatus  
Circuitry monitors a plurality of rotating shafts, and provides a corresponding plurality of binary output words each characterizing the angular position of an associated shaft. Synchro and Scott...
4060799 Two-speed resolver employing differential reduction techniques  
A two-speed resolver system wherein the rotor of a fine brushless resolver which is directly connected to the shaft to be instrumented is connected to the rotor of a coarse resolver so that the...
3990062 Resolver to digital converter  
A resolver to digital converter which provides digitally generated sinusoidal voltages to apply to the stator windings of the resolver. The oscillator providing the digital pulses is connected to...
3935645 Apparatus for indicating relative azimuth  
An arrangement for indicating a relative azimuth between two objects remote from each other, such as a control station and a mobile unit remotely controlled by the station, on which are...
3930143 Circuit for measuring the rate of synchro rotation  
Utilizing a three-wire input from a synchro, a signal representing the rate of rotation of the synchro shaft is generated by means of: summing amplifiers to generate signals representing the...
3895365 Shaft position encoder apparatus  
Electronic circuitry characterizes the instantaneous orientation of a rotating shaft by providing an azimuth reference pulse (ARP) once each cycle as the shaft rotates through a reference...
3885209 Two speed control systems  
Two speed control apparatus including first and second rotatable shafts coupled to each other through a single mesh of gears, and first and second transducers connected to the respective shafts....
3883859 Load height indication  
Unseen loads on a tower crane are stopped at desired levels by an operator who is stationed at a location where the load cannot be seen. A rotation measuring device is mounted on the load cable...
3851329 DIGITAL ANGLE CONVERTER  
A circuit is provided for use with digital height gages or other such digital measuring devices. The circuit provides for the creation of sine and cosine waves which are applied to the slider of...
3828331 DEMODULATOR FOR ANGULARLY RELATED SIGNALS  
A demodulator for signals angularly related to the position of a rotor of a synchro or resolver uses, in one embodiment, only one transformer in a circuit for subtracting, adding, and phase...
3825911 REMOTE READING COMPASS SYSTEM  
A magnetic compass system having an inductor element which is responsive to the magnetic field generated by a magnet system attached to a compass card, or directly from the earth's natural...
3803567 RESOLVER TO PULSE WIDTH CONVERTER  
The signal induced in the rotor windings of a non-contacting transducer is converted into a pulse width modulated voltage commensurate with rotor angular position. Signal conversion is...
3760401 CRANE OPERATED ROTATION MONITOR  
A crane operated rotation monitor includes a means to transduce mechanical rotation to electrical energy and means to transduce the electrical energy to mechanical rotation. An indicator rotates...
3737885 DIGITAL RESPONSIVE ALTIMETER  
An apparatus for providing an analog indication of altitude in response to a digital altitude information signal, such as from a digital air data computer. The apparatus preferably provides...
3735391 MAGNETIC SYNCHRO ANGLE RESOLVER  
A magnetic synchro second harmonic generator has line voltage bucked out in current summing means, and is synchronously rectified in balanced demodulators utilizing double the line frequency as a...
3705344 WIDEBAND CONSTANT AMPLITUDE-VARIABLE PHASE CIRCUIT  
An electronic circuit for converting three-wire synchro-type amplitude modulated carrier frequency signals to an equivalent two-wire constant amplitude-variable phase signal including frequency...
3704449 APPARATUS FOR MEASURING AND INDICATING THE ANGULAR POSITION OF AN ANTENNA  
An antenna position measuring and indicating system is disclosed wherein the angular position of the antenna is mechanically amplified by a special gear arrangement in order to increase the...
3696363 FAILURE INDICATING ARRANGEMENTS FOR GYROSCOPES  
An arrangement for indicating failures in the three-phase voltage supply for a gyro motor of the induction type includes a servo motor connected in parallel with the gyro motor for controlling...
3684961 DISPLACEMENT TRANSDUCER WITH INDUCTIVE SENSING HEAD AND MEANS PROVIDING SEPARATE DISPLACEMENT AND DIRECTION SIGNALS  
A displacement transducer suitable for use in an automatic transfer machine includes an inductive sensing head the output of which is used to generate an indicating signal of a polarity and...
Matches 1 - 50 out of 167 1 2 3 4 >