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6182270 |
Low-displacement rank preconditioners for simplified non-linear analysis of circuits and other devices
Methods and apparatus for performing non-linear analysis using preconditioners to reduce the computation and storage requirements associated with processing a system of equations. A circuit, system...
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6141676 |
Digitally-configurable analog VLSI chip and method for real-time solution of partial differential equations
A programmable Very Large Scale Integration (VLSI) chip and method for the analog solution of a family of partial differential equations commonly encountered in engineering and scientific...
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6035314 |
Information processing method
The reliability of solutions of simultaneous algebraic equations with integral coefficients is improved and high-speed information processing is realized. A method processes information wherein, in...
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5678055 |
Method and device for generating Grobner bases to reduce memory usage and increase computing speed
A method and device for generating the Grobner bases to reduce the memory usage and compute at a high speed. The method comprises the steps of a) selecting a prime number, b) computing the...
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5506795 |
Apparatus and method for generating chaotic signals and chaos device
In order to provide an apparatus and method generating chaotically behaving signals or data, a plurality of delay elements 10 to 14 are connected in series, and an output of the foremost delay...
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4945508 |
Process and device for simulating a synchronous electric machine
This process comprises measuring chosen particular physical parameters of a synchronous rotating machine, combining said parameters with variables defining the nominal mode of operation of the...
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4729113 |
Method and arrangement for recovering an analogue signal
A method and an arrangement for recovering an analog signal E(t) and for displaying and/or processing it, for example, on an oscilloscope as a useful recovered signal X(t), in the envelope display...
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4544230 |
Method of evaluating a polynomial function using an array of optical modules
Methods and apparatus for providing an optical analog quantity proportional to ##EQU1## Input light (a 4 ) of intensity proportional to a n is directed (21,31) to the input end of an nth optical...
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4544229 |
Apparatus for evaluating a polynomial function using an array of optical modules
Methods and apparatus for providing an optical analog quantity proportional to ##EQU1## Input light (a 4 ) of intensity proportional to a n is directed (21,31) to the input end of an nth optical...
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4425624 |
Device for simulating an instantaneous temperature-rise of a semiconductor component in order to protect same
In order to simulate an instantaneous temperature-rise of a thyristor through which flows a current (I), this device takes the mean value (VM) of that current and squares the effective value (EC)...
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4315320 |
Educational analog computer laboratory
This invention relates to a book-sized, self-contained analog computer, organized to enable an inexperienced person to program readily a differential equation. In this computer permanent circuits...
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4020329 |
Apparatus for radiation dose measurement
An apparatus for the direct measurement of total radiation dose from the difference in electrochemical potential between an unirradiated solution containing known concentrations of ceric and cerous...
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3996786 |
Means for on-line determination of boiling point properties of crude oil
On-line sensors sense the kinematic viscosity, the infrared absorption, at a predetermined wavelength, the ultraviolet absorption of a predetermined wavelength, and the sulfur content of crude oil...
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3970832 |
Apparatus and method for obtaining an electrical signal corresponding to the specific enthalpy of steam
Apparatus and method for obtaining an electrical signal corresponding to the enthalpy of steam expressed by Koch's state equation, is disclosed. In the form of Koch's state equation which is used,...
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3953721 |
Analogue computer for solving polynomial equations
An analogue computer has two or more multiplication modules. Each module provides an output signal representing the product of the magnitude of an analogue input signal to the module and the factor...
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3941991 |
Method and apparatus for recording and/or indicating in quantified form a function of two variables
Method and apparatus for recording and/or indicating a function of two variables, characterized in that a signal having a value Z which is a function of two variables X and Y is quantified and is...
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3886334 |
Method and apparatus for simulating a class of aircraft
A flight simulator, or computer section thereof, capable of computing and supplying output signals in real time corresponding to the performance of any of two or more aircraft. The aircraft are...
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3864558 |
ARITHMETIC COMPUTATION OF FUNCTIONS
An analog for the square of the difference of a first magnitude and a second magnitude, regardless of the polarity of this difference, is produced by a p-channel insulated-gate field-effect...
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3808411 |
METHOD AND APPARATUS FOR DETERMINING THE AVERAGE DEVIATION OF A VARIABLE FUNCTION FROM ITS MEAN VALUE
In order to determine the average quadratic deviation or coefficient of variation of a time variable function, a signal, representative of the function, is applied to a first resistor-capacitor...
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3778607 |
AUTOMATIC SCALING SYSTEM
An automatic scaling system wherein means are provided which, in the case of programming of an analog operator, numerically analyzes an original differential equation in digital form for evaluating...
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3743818 |
BALLISTIC COMPUTER
A ballistic computer comprising a first section for computing the ballistic levation angle signal by the mechanization of a power series as a function of target range, the selected ammunition type,...
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3739152 |
BALLISTIC ELEVATION ANGLE GENERATOR
A ballistic computer having an elevation angle generator comprising a first section for producing a first signal representative of target range modified as a function of the initial velocity value...
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3739153 |
WEAPON FIRING COMPUTER
The present invention is a fire control computer which computes weapon firing data from known information set into the computer by handset controls in a predetermined sequence of operations. The...
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3634672 |
PRODUCT FUNCTION ROOT EXTRACTOR
An illustrative embodiment of the present invention includes analog computing apparatus for determining the square root of the product of two mathematical input functions. The apparatus includes a...
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3634670 |
NORMALIZED FUEL RATE COMPUTER
An analog computer simulates and/or determines on a real time basis the normalized fuel consumption of a ship's powerplant. A plurality of powerplant parameters are transformed into a form (1±Δp ...
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3529139 |
ANALYZING CIRCUIT
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3526756 |
PARAMETRIC CORRELATION APPARATUS
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3510785 |
NONPHASE SENSITIVE SYNCHRONOUS DETECTOR
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3443078 |
ANALOGUE COMPUTERS FOR LEAST-COST OPTIMIZATION
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3439156 |
ANALOG COMPUTER
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3436943 |
ROLLING MILL TAPER CONTROL SYSTEM
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3432651 |
APPARATUS TO GENERATE CURVES BY ELEMENTAL ARCS
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3431407 |
POLYNOMIAL ROOT FINDER
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3408488 |
Square root computing circuit
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3358151 |
Voltage supply source providing stable voltages at resistor taps representing coefficients of terms in a polynomial equation
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3329808 |
Cargo loading computer
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3280317 |
Root locus plotter
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3264460 |
Function computer employing curve fitting techniques
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3259735 |
Arithmetic computation using a nuclear magnetic resonance analog to digital converter
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3259734 |
Computer control of external reflux to a fractionating column
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3233086 |
Method and apparatus for the solution of roots of polynomials
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3226847 |
Computers and simulators of atomic radiation
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3225180 |
Weight measuring and indicating apparatus and method
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3163846 |
Analog computer for use in seismic exploration
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3129325 |
Equation solver
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3104315 |
Computer for functions such as true airspeed
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3063637 |
Computing systems
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3044706 |
Apparatus for evaluating algebraic functions
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3034710 |
Planar computer
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3032269 |
Color mixture computer
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