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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...
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...
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...
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...
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...
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...
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...
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...
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...
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)...
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...
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...
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...
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,...
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...
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...
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...
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...
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...
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...
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,...
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...
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...
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...
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 ...
3529139 ANALYZING CIRCUIT  
3526756 PARAMETRIC CORRELATION APPARATUS  
3510785 NONPHASE SENSITIVE SYNCHRONOUS DETECTOR  
3443078 ANALOGUE COMPUTERS FOR LEAST-COST OPTIMIZATION  
3439156 ANALOG COMPUTER  
3436943 ROLLING MILL TAPER CONTROL SYSTEM  
3432651 APPARATUS TO GENERATE CURVES BY ELEMENTAL ARCS  
3431407 POLYNOMIAL ROOT FINDER  
3408488 Square root computing circuit  
3358151 Voltage supply source providing stable voltages at resistor taps representing coefficients of terms in a polynomial equation  
3329808 Cargo loading computer  
3280317 Root locus plotter  
3264460 Function computer employing curve fitting techniques  
3259735 Arithmetic computation using a nuclear magnetic resonance analog to digital converter  
3259734 Computer control of external reflux to a fractionating column  
3233086 Method and apparatus for the solution of roots of polynomials  
3226847 Computers and simulators of atomic radiation  
3225180 Weight measuring and indicating apparatus and method  
3163846 Analog computer for use in seismic exploration  
3129325 Equation solver  
3104315 Computer for functions such as true airspeed  
3063637 Computing systems  
3044706 Apparatus for evaluating algebraic functions  
3034710 Planar computer  
3032269 Color mixture computer  
Matches 1 - 50 out of 80 1 2 >