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4683543 
Timebased interpolation control of a robot
A method of interpolatively controlling the movement of an arm portion of a robot along a line between predetermined first and second spatial positions which comprises teaching and playback steps.... 

4674125 
Realtime hierarchal pyramid signal processing apparatus
Pipeline architecture is employed for analyzing in delayed real time the frequency spectrum of an information component (having one or more dimensions) of a given temporal signal having a highest... 

4661987 
Video processor
A method and processor for varying the size of a digitized video image in bstantially two video frame times by transforming successive lines of the image along one axis and then transforming... 

4660162 
Interpolation pulse duration modulated multiplier
A pulse duration modulated (PDM) signal is generated from a periodic digitized signal which may be produced by sampling an analog signal of frequency Fs and using a digitizing frequency F where... 

4646321 
Interpolation pulse duration modulated adder
A pulse duration modulated (PDM) signal is generated from a periodic digitized signal which may be produced by sampling an analog signal of frequency Fs and using a digitizing frequency F where... 

4639920 
Data interpolating circuit using a two data word memory
An interpolation circuit and method corrects a data word having an error by either substituting the most recent prior correct data word or substituting the mean value of the most recent prior... 

4602545 
Digital signal generator for musical notes
A digital tone generator for a keyboard electronic musical instrument is described. The generator is of the waveshape memory type and repetitively interpolates between successive stored sample... 

4602285 
System and method for transforming and filtering a video image
A video transformation and filtering system generates for each source image data point a plurality of target image addresses indicating a displacement between a point at which the source image... 

4602375 
Onboard clock correction by means of drift prediction
In an onboard satellite clock correction system of the type wherein phase errors between the satellite clock and a groundbased clock are determined and a clock correction value sent to the... 

4593271 
Higher order interpolation for digitaltoanalog conversion
Digital signals are processed by a first accumulator to generate most significant bits which represent the signal to be converted but with truncation noise. The error signals from the first... 

4581698 
Method and system for generating interpolation pulses
A technique of determining the distribution of pulses along two perpendicular XY axes of a numerically controlled machine can be used for linear, circular, and parabolic interpolations and may be... 

4550383 
Parabolic position and attitude interpolation for a robot hand
A control system and method for controlling a hand of an industrial robot are disclosed wherein the hand is driven at a predetermined speed along a polygonal path defined by a plurality of... 

4536853 
Multiple wave generator
A multiple wave generator for an electronic musical instrument which has a wave data memory storing plural data samples of a wave shape, a wave address register storing wave address data partially... 

4528639 
Method of and apparatus for generating an inerstitial point in a data stream having an even number of data points
Apparatus for doubling the data density rate of an analog to digital converter or doubling the data density storage capacity of a memory device. An interstitial data point midway between adjacent... 

4527020 
Echo canceller for a longdistance telephone network
An echo canceller for use in a longdistance telephone network having a fourwire circuit and a twowire circuit in which echoes are inherently produced at the junction of the fourwire circuit... 

4523287 
Method for extrapolating a path of a robot and apparatus therefor
A method of and apparatus for controlling the path of an industrial robot, in which a slight change in the shape of the work or the position of the work relatively to the robot, if any, can be... 

4511989 
Linear interpolating method and color conversion apparatus using this method
A linear interpolating method and apparatus for signals in a memory wherein first signals are converted into second signals by addressing in at least fourdimensional fashion, for use in a color... 

4511882 
Function generator
A function generator producing an output signal varying in predetermined nonlinear relationship to an input signal wherein the input signal addresses a programmable readonly memory (PROM) which... 

4497035 
Method of generating time delay
In order to deliver an input signal of each operation cycle after a desired time delay, there are disposed data memory means for storing the input signal, counter means for appointing write... 

4462083 
Method of interval interpolation
An improved method of interval interpolation, i.e., subdivision of a signal period, is disclosed. Generally, at least one scanning signal (S1, S2) generated by a scanning unit (G) scanning a scale... 

4460890 
Direct digital to digital sampling rate conversion, method and apparatus
A direct digitaltodigital rate conversion apparatus and method for converting an input signal at a first sampling rate to an output signal at a second sampling rate, said apparatus has a rate... 

4458326 
Method and apparatus for circular interpolation
A method and apparatus for circular interpolation on the basis of a given arc center O, arc starting point Ps and arc end point Pe. In a case where the given arc end point Pe does not lie on an... 

4446529 
Linear interpolation between regularly spaced digital samples
The process of linearly interpolating between data taken from adjacent storage locations in a memory nonintegrally addressed has the initial subtraction and final addition steps eliminated from... 

4430736 
Circuit for correcting distortions in a PCM transmission device
In a circuit arrangement for the correction of falsified sample values in a PCM transmission system, which arrangement includes an interpolation member connected for deriving a corrected value to... 

4428059 
Real time fill circuit
There has been provided, a digital circuit for interpolating the intensity values between adjacent pulsed data signals. The interpolation includes, effectively, providing a plurality of shades of... 

4412339 
Zerocrossing interpolator to reduce isochronous distortion in a digital FSK modem
In a digital data communication receiver, an apparatus for estimating the time of zerocrossing between successive samples of a continuous frequency shift keyed (FSK) or like zerocrossing signal... 

4402012 
Twodimensional digital linear interpolation system
A twodimensional interpolation of image data is provided for a video display system, in which a onedimensional interpolator performs the interpolation in both dimensions with data flow control... 

4387327 
Numerical control system for a crankshaft milling machine integral interpolators
Serving to control at least two pulsecontrolled drive means for moving a tool along respective coordinate axes, the control system comprises input means for presenting workpiece data and tool... 

4354243 
Two dimensional interpolation circuit for spatial and shading error corrector systems
Data for providing spatial and shading error correction signals during the operating mode of a television camera, are taken from a two dimensional array of correction points distributed across a... 

4335275 
Synchronous method and apparatus for speech synthesis circuit
A speech synthesis circuit capable of being implemented in an integrated circuit is disclosed. The speech synthesis circuit has an input port for receiving frames of data consisting of speech... 

4334281 
Command generation system for generating a smooth command signal
In a system which calculates a digital quantity at known time intervals and converts the calculated result to analog form to apply a command, for example, to a numericalcontrolled machine tool,... 

4327440 
Signal detector for use in digital communication
A signal detector for use in the digital signal communication, comprising a tentative decision means for assigning certain symbols to receiving signals based on a predetermined value; a first... 

4313173 
Linear interpolator
An interpolator is arranged to form an increment for each interpolation interval by dividing the difference between the interpolator input and output by a number N indicating the desired number of... 

4282578 
System for linearizing nonlinear transducer signals
A system for linearizing nonlinear transducer output signals includes an analogtodigital converter having a plurality of digital outputs. A first group of the most significant bits of the... 

4270026 
Interpolator apparatus for increasing the word rate of a digital signal of the type employed in digital telephone systems
This speech signal digital interpolator increases data (and date rate) by first using an interface unit for ratechanging and zerostuffing a 32 Kiloword/sec (13 bits/word) signal to form a 1.024... 

4263593 
Display interpolator employing a transversal filter for a digital oscilloscope
A display system for a digital oscilloscope includes an interpolator for interpolating between stored waveform samples and providing additional samples at the interpolated values to thereby... 

4261043 
Coefficient extrapolator for the Haar, Walsh, and Hadamard domains
In a data compression system utilizing the Haar, Walsh or Hadamard transformation, a machine which operates in the transform domain to obtain approximations to the higher order transform... 

4255789 
Microprocessorbased electronic engine control system
A method and apparatus for controlling the various functions of an internal combustion engine using a programcontrolled microprocessor having a memory preprogrammed with various control laws and... 

4245541 
Apparatus for reducing noise in digital to analog conversion
In a musical instrument in which a plurality of data words corresponding to the amplitudes of a corresponding number of evenly spaced points defining a cycle of an audio waveform are transferred... 

4243924 
System for interpolating an arc for a numerical control system
The coordinates (Xn+1 Yn+1) of an arc to be traced at time tn+1 are preliminary calculated using the coordinates (Xn Yn) at time tn, the radius (r) of the arc and a specified length ln during the... 

4231097 
Apparatus for calculating a plurality of interpolation values
Apparatus for calculating a plurality of interpolation values is adapted to calculate linear interpolation values, consisting of a second data train, from a first data train and includes a memory... 

4225931 
Interpolation apparatus for digital electronic position measuring instrument
An interpolation process is described for use with an incremental position measuring device which produces a periodic analog output signal. The output signal is digitized and then applied as an... 

4213186 
Pulse interpolation system
The prior D.D.A. (Digital Differential Analyzer) having an integrand register, a remainder register and an adder for pulse interpolation has been improved by attaching some new units to the same,... 

4211138 
Harmonic formant filter for an electronic musical instrument
A fixed formant filter for a digital electronic instrument of the type in which musical tones are generated from waveshape data calculated independently of frequency of the tone from constituent... 

4208723 
Data point connection circuitry for use in display devices
In a system for producing a display in an x,y coordinate system which system produces only a single display point for each display position on the xaxis, a circuit for producing rise lines and... 

4205575 
Binary interpolator for electronic musical instrument
A binary interpolator circuit is embodied in an electronic musical instrument for producing a relatively smooth, inaudible transition between steps of different amplitude in a stepwise advancing... 

4189779 
Parameter interpolator for speech synthesis circuit
Disclosed is a parameter interpolator for a speech synthesis circuit. Using a parameter interpolator permits the data rate to the speech synthesis circuit to be lowered inasmuch as the incoming... 

4158887 
Curve generator for generating a smooth curve with a pair of circular arcs between two given points
A curve generator for generating a smooth curve with a pair of circular arcs between the two given points P1 and P2 on the condition that the generated curve is tangent with the given tangent... 

4150328 
Apparatus and method for controlling a machine tool along a circular path
In a control apparatus for a machine tool, an interpolator circuit for determining whether or not one of the axis motors should be inhibited on the next step to maintain the tool closer to the... 

4142493 
Closed loop exhaust gas recirculation control system
A closed loop exhaust gas recirculation (EGR) control system for an internal combustion engine having an intake system, an exhaust system, a throttle disposed within the intake system for... 