Matches 301 - 342 out of 342 < 1 2 3 4 5 6 7


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4101964 Digital filter for pulse code modulation signals  
A digital filter for pulse code modulation signals employs interpolation. A digital filter can handle a multiplicity of multiplexed pulse code modulation channels.
4074281 Method and appartus for making hard copy records of curves including curves which are mathematically described as multi-functions from periodically sampled data points  
A line scan cathode ray tube (CRT) recorder generates a hard copy record of a curve from stored data representing the X-Y coordinates of a series of sample points along the curve. The curve may be...
4059746 Pulse distribution apparatus for linear interpolation in a numerical control system  
An apparatus for distributing drive pulses to drive servomechanisms in a numerical control system is provided with a clock pulse generator, presettable counters respectively associated with the...
4053754 Recursive processing of multiple intensity-modulated scans  
A recursive signal processing apparatus is disclosed which utilizes the slow fluctuations in position of a signal in a recurring intensity-modulated scan for signal enhancement by effectively...
4031369 Interpolation and control apparatus and method for a numerical control system  
A numerical control system having both linear and circular interpolating capabilities is described. Data from a permanent storage medium such as tape are input to a preprocessor. The preprocesor...
4031370 Generation of mathematical functions  
A method of interpolating a value of the dependent variable, y corresponding to a given value of an independent variable x, wherein y = f(x) and is described by a linear polynomial series of the...
4020332 Interpolation-decimation circuit for increasing or decreasing digital sampling frequency  
A general purpose interpolator-decimator circuit for increasing or decreasing the sampling rate of a digital signal by a factor L/M, where L and M are integers, is disclosed. The circuit includes...
4001565 Digital interpolator  
A digital interpolator in which a value previously stored in a program memory circuit such as an ROM is read out by addressing it with an output of a counter having a predetermined value preset...
3997773 Interpolating digital filter with input buffer  
A non-recursive interpolating digital filter for generating, output code works, at an arbitrary rational ratio between the input and output sampling frequencies. The input code words are entered...
3996456 Recursive interpolation  
A system for interpolatively displaying the values of a one-dimensional array of data sources is disclosed. The output signals are multiplexed and successively made available to the input of a...
3964443 Digital engine control system using DDA schedule generators  
A first pair of DDAs for interpolating along a predetermined MAP-RPM-Fuel schedule for an internal combustion engine and a second pair for iterpolating along a predetermined MAP-TEMP-ENRICH...
3943346 Digital interpolator for reducing time quantization errors  
A digital processor for discretely sampled information signals, of the type such as radar return signals and communication signals. Means are disclosed for determining the positions and values of...
3882304 Parametric interpolation of three-dimensional surfaces  
A method is described for defining complex two- and three-dimensional objects with a minimal amount of data. The method employs a "preprocessor" which receives the coordinate values of an ordered...
3862404 DEVICE FOR CARRYING OUT TWO-DIMENSIONAL INTERPOLATION IN CONJUNCTION WITH A FIXED WORD STORE  
A device for use with a fixed word store for multidimensional interpolation of function values not stored in the store by adding stored functional support values which surround the desired value...
3860805 METHOD AND APPARATUS FOR PRODUCING A FAIRING CONTOUR IN NUMERICAL CONTROL SYSTEMS  
A numerical control method and apparatus for directing a controlled element such as a cutting tool through a fairing contour between two normally intersecting linear displacement segments. The...
3847349 INTERPOLATORS  
An interpolating arrangement comprises a stepper controlled to step between two computer-defined values at instants in dependence upon the difference between the values and the real time interval...
3846625 COMPUTING DEVICE FOR AN INTERPOLATION  
A computing device for interpolation of values which is suitable for controlling operation of a car engine includes a digital memory for memorizing the data of selected independent variations of...
3813529 DIGITAL HIGH ORDER INTERPOLATOR  
A system is disclosed herein which is designed to generate the value for dependent variables of given mathematical functions when provided with corresponding independent variables as inputs...
3806713 METHOD AND APPARATUS FOR MAXIMIZING THE LENGTH OF STRAIGHT LINE SEGMENTS APPROXIMATING A CURVE  
In a system having a rotational axis and a radial axis, a method and apparatus is disclosed for maximizing the length of straight line segments approximating a curve while maintaining the...
3789203 FUNCTION GENERATION BY APPROXIMATION EMPLOYING INTERATIVE INTERPOLATION  
A method of solving a function for values of a variable when values of an independent variable are given, the method being especially valuable for use in or with a computer, an advantage being...
3754236 DIGITAL TO ANALOG CONVERSION APPARATUS  
A digital to analog converter which improves the accuracy of reconstruction of a sampled analog signal without requiring that the sampling rate of the original signal be increased to obtain such...
3748447 APPARATUS FOR PERFORMING A LINEAR INTERPOLATION ALGORITHM  
A linear interpolation and numerical integration system employing U, X and Y arrays for computing additional sets of X and Y points in an X-Y coordinate system from a number of known sets of X and...
3725794 INTERPOLATING APPARATUS  
Interpolating apparatus for dividing time intervals of variable duration into an integral number of subintervals is shown wherein the time intervals are divided into a first predetermined number...
3725684 DIGITAL/ANALOG LINEAR INTERPOLATOR  
An electronic calculating machine for determination of a desired output quantity z(xe,ye) related to a first input quantity xe variable within limits xo to xn and to a second input quantity ye...
3678258 DIGITALLY CONTROLLED ELECTRONIC FUNCTION GENERATOR UTILIZING A BREAKPOINT INTERPOLATION TECHNIQUE  
The specification discloses a digitally controlled function generator wherein breakpoint information for a given function is developed by a digital computer. A search function is employed by...
3676655 DIGITAL FUNCTION GENERATOR FOR TWO INDEPENDENT VARIABLES WITH INTERPOLATION  
A digital logic circuit for providing an output signal which is a function of a pair of independent variables is disclosed. The disclosed embodiment includes a two-dimensional function generator...
3644723 CIRCULAR INTERPOLATION SYSTEM  
An operational integrator comprising an integrand register and an accumulator register, a pulse code unit for supplying four series of pulses and a carry pulse to transfer the numbers stored in...
3639736 DISPLAY WINDOWING BY CLIPPING  
A computation system is disclosed, as for interpolating lines with specific application to the selection of a portion of a line which is to be presented in a fragmentary display. The system as...
3617716 METHOD AND ARRANGEMENT FOR EXTRAPOLATION OF A CONTINUOUS FUNCTION  
Extrapolated values of a continuous function of an independent variable are omputed for a given extrapolation range of the independent variable by measuring the function at predetermined values of...
3573797 RATE AUGMENTED DIGITAL-TO-ANALOG CONVERTER  
This disclosure describes a rate augmented digital-to-analog converter for computed time-dependent data. The converter produces a smooth continuous function by digitally incrementing functions...
3532864 LINEAR INTERPOLATION FUNCTION GENERATION  
3521270 METHOD AND APPARATUS FOR THE INTERPOLATION OF A PERIODIC SEQUENCE OF INFORMATION  
3518513 POSITION CONTROL DEVICE COMPRISING AN INTERPOLATING UNIT  
3412240 Linear interpolater  
3372268 Pulse generator  
3308279 Error compensation circuit for control system  
3287545 Automatic control system  
3247365 Digital function generator including simultaneous multiplication and division  
3246130 Extrapolation computer using reversible counter for trajectory measurement  
3155821 Computer method and apparatus  
3109092 Digital curve computer for use in controlling the path of a work tool or work piece  
3063047 Firing point locator system  

Matches 301 - 342 out of 342 < 1 2 3 4 5 6 7