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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 6910894 | Hands on instruction manual A manual for teaching and/or demonstrating the assembly and/or operation of a transmittable energy circuit, wherein the manual has a base hinged to a plurality of pages for folding the pages over or away from the base, wherein at least one of the pages has conductor... | 06/28/2005 |
| 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 or other device to be analyzed includes n unknown wavefor... | 01/30/2001 |
| 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 computing: The Laplace equation, the diffusion or conduction equati... | 10/31/2000 |
| 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 a model in which restrictions among parameters are given ... | 03/07/2000 |
| 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 normalization format of the polynomial pair regarding p as the mod... | 10/14/1997 |
| 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 element 10 is supplied to a nonlinear function element 30, whi... | 04/09/1996 |
| 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 machine, obtaining from said physical parameters and said vari... | 07/31/1990 |
| 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 mode and/or in the signal display mode. In the method, the... | 03/01/1988 |
| 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 (a4) of intensity proportional to an is directed (21,31) to the input end of an nth optical module comprising a modulator (... | 10/01/1985 |
| 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 (a4) of intensity proportional to an is directed (21,31) to the input end of an nth optical module comprising a modulator (... | 10/01/1985 |
| 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) thereof. An image of the dissipated power obtained at the o... | 01/10/1984 |
| 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 are either exposed or indicated as solid lines. Connections... | 02/09/1982 |
| 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 ions and a gamma or electron irradiated solution initiall... | 04/26/1977 |
| 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 and corresponding signals are provided to a computer circu... | 12/14/1976 |
| 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, terms of minor significance are neglected and the equation... | 07/20/1976 |
| 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 represented by a common multiplier signal controlling the... | 04/27/1976 |
| 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 then represented in quantified form. The representation in ... | 03/02/1976 |
