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5177698 
Selectable power of two coefficient signal combining circuit
An interpolation circuit multiplexes inputs prior to one or more additions during an interpolation operation, thereby reducing the number of components implementing the interpolation circuit. The... 

5175701 
System for performing linear interpolation
An interpolation system generates an interpolated value in response to an input value. The interpolation system includes a function value store comprising a plurality of function value storage... 

5173567 
Musical tone generating apparatus with parameter controller for changing characteristics of musical tone signal
A musical tone generating apparatus is provided for an electronic musical instrument. The apparatus comprises a musical tone signal generating device and a parameter controller. The musical tone... 

5170475 
Data processor having instructions for interpolating between memoryresident data values respectively
A data processor executes a table lookup and interpolate instruction which retrieves two adjacent table values from memory, interpolates between them and stores the result in a register. The same... 

5157388 
Method and apparatus for graphics data interpolation
Special purpose graphics instructions are provided to implement linear interpolation of pixel attributes such as a distance (Z) value or color intensity. Multiple fixedpoint real number additions... 

5149902 
Electronic musical instrument using filters for timbre control
A filter calculating section has a plurality of basic filters formed on a timedivisional basis. The timbre of a musical tone signal is controlled by a memory section, an accumulator, a selector,... 

5148381 
Onedimensional interpolation circuit and method based on modification of a parallel multiplier
An interpolator array having a plurality of interpolator array cells is provided for receiving first and second input values to be interpolated and an interpolator weight term, to provide an... 

5146834 
Interpolating tone wave generator having truncated data
A tone generating apparatus comprises a wave memory, an address calculator, an interpolating circuit. In the wave memory is stored tone wave data of a single period to be repeatedly read out... 

5132913 
Method and apparatus for creating a threedimensional space curve by smoothly connecting a threedimensional sequence of discretely given paints
A threedimensional sequence of discretely given points Pi (i=1, 2, . . . ) is projected onto two mutually adjacent planes (XY plane, YZ plane) in a rectangular coordinate system. Next,... 

5125042 
Digital image interpolator using a plurality of interpolation kernals
An interpolator for enlarging or reducing a digital image includes an interpolation coefficient memory containing interpolation coefficients representing a one dimension interpolation kernel. A... 

5122980 
Encoder interpolator circuit
2Mbit position data is divided into lowerorder Mbit data and higherorder Mbit data. The lowerorder Mbit data is stored in a lowerorder storage area (14a) of a read only memory (ROM) (14),... 

5117725 
Device for changing and controlling the rate of generating waveform data
A device for changing and controlling the rate of generating waveform data wherein rate changing data such as phase angle step data corresponding to steps, wherein each pair of contiguous steps... 

5111727 
Digital sampling instrument for digital audio data
A digital sampling instrument for multichannel interpolative playback of digital audio data stored in a waveform memory provides improved interpolation of musical sounds by using seven or eight... 

5113362 
Integrated interpolator and method of operation
An interpolator circuit is formed from a chain of multiplexer/adder circuits. Each multiplexer/adder circuit selects one of the two multibit binary values which are to be interpolated in... 

5075880 
Method and apparatus for time domain interpolation of digital audio signals
An apparatus for the domain interpolation of digital audio signals includes a signal processor apparatus to reconstruct the digital audio signal. The signal processor apparatus includes a receiver... 

5068816 
Interplating memory function evaluation
A technique for the evaluation of a general continuous function f(x) is presented, and the design of an interpolating memroy, an implementation of the technique, is described. The technique... 

5058139 
Notch filter for digital transmission system
In a receiver for receiving an information signal including digital information samples which are contaminated with an interference component having known frequency characteristics, a filter is... 

5054097 
Methods and apparatus for alignment of images
Methods and apparatus are disclosed for rapid and interactive "warping" of a first image made up of pixels to form a resulting image made up of pixels which are aligned, pixelforpixel, with a... 

5043932 
Apparatus having modular interpolation architecture
An apparatus adaptable for use with a digitalanalog conversion device for effecting communications from a digital device to an analog device, having a digitalanalog circuit for converting... 

5027209 
Interpolation circuit for digital signal processor
An interpolation circuit, in which a digital signal produced by sampling and quantizing an analog information sequentially is encoded so that, in case a certain one of the encoded sample data is... 

5025405 
Method of interpolating pixel values
A pipelined interpolator precomputes both integer and fractional portions of the slope of the function to be interpolated. The fractional portions of the starting value of the dependent variable... 

5025404 
Method of correcting erroneous values of samples of an equidistantly sampled signal and device for carrying out the method
The values of incorrect samples of, for example, a digital audio signal are estimated by means of interpolation. For this purpose an appropriate sampling interval is determined from the number of... 

5020014 
Generic interpolation pipeline processor
A generic interpolation pipeline processor for use in a realtime video display system to find the coordinates of any point P(x,y) on a line between P1 (x1,y1) and P2 (x2,y2) according to the... 

5018090 
Digital interpolation circuitry
A sampled data interpolator includes a linear interpolator coupled in parallel with a nonlinear compensation signal path. The nonlinearly processed signals and the linearly interpolated signals... 

5001651 
Method and apparatus for interpolating groups of pixels on a scan line
A pixel control system and method of controlling the intensity of pixels on a raster video display screen with scan lines grouped in 20 pixel increments across the scan line to display an object.... 

4975866 
Interpolation system
An interpolation device arranged to input (a) a serial data sequence including a number of sampling data and (b) a serial flag sequence including flag data indicative of the validities of the... 

4953437 
Method and apparatus for digitally generating musical notes
An electronic musical instrument of the digital synthesis type that uses digital processing techniques to impart not only the desired harmonic structure and pitch, but also to impart the correct... 

4901266 
Interpolating apparatus with a processing section for line segments parallel with a coordinate axis
In an interpolator for a line segment parallel with either X axis or Y axis, when a first comparator detects the coincidence of the X coordinate of the starting point with that of the terminating... 

4894794 
System for providing continous linear interpolation
A system for continuously linearly interpolating intermediary binary numbers operates to coordinate the transfer of binary numbers to a binary averager so as to provide output binary numbers equal... 

4884440 
Process for the elimination of noise from data
A process for eliminating noise from an actual data stream, and plotting the actual data stream with a superimposed set of interpolated data values is disclosed. The set of interpolated data... 

4853885 
Method of compressing character or pictorial image data using curve approximation
A method of curve approximation comprises a dividing step for dividing a curve into arcs classified into four quadrant directions according to a normal thereof, each having a singlevalue monotone... 

4841462 
Random access memory and linear interpolation circuit comprising application thereof
A random access memory (RAM) comprises memory cells each including an RS type flipflop having complementary data inputs and transistors for forcing the flipflop by that one of two data wires... 

4837722 
Digital high speed 3dimensional interpolation machine
High speed interpolation machine for interpolating values in the transformation from one space to another. One important application is in the transformation from a transmission space to a display... 

4829587 
Fast bitonal to gray scale image scaling
A device for rescaling an image to change the resolution with which discrete pixel values represent it includes a scanline interface (40) and an alignment circuit (45) that assemble sets of the... 

4815354 
Tone signal generating apparatus having a lowpass filter for interpolating waveforms
A tone signal generating apparatus comprises a waveform memory in which a plurality of waveform data representing different waveforms but corresponding to a same tone name are stored. These... 

4802109 
Dataprocessing system for obtaining expanded and interpolated data
A dataprocessing system is adapted to obtain data comprised of discrete data having a density different from raw data comprised of discrete data, through the interpolation. The system performs a... 

4788528 
Method and apparatus for highresolution digitization of a signal
A method and apparatus for highresolution digitization of a signal with a large dynamic range employ an analogtodigital converter having a bit number and having a measuring region which is... 

4781096 
Musical tone generating apparatus
A musical tone generating apparatus for an electronic musical instrument utilizing a data compression system is disclosed. This musical tone generating apparatus is basically constructed by a... 

4763293 
Data processing device for interpolation
A data processing device of the kind handling a sequence of data obtained by sampling an analog information signal to process each of the data to compute two correct data included in the data... 

4757465 
Digital interpolator for selectively providing linear interpolation between successive digital data words
The digital interpolator herein selectively provides linear interpolation between successive digital data words in a stream of such data words. The data words each contain a control bit together... 

4751742 
Priority coding of transform coefficients
Disclosed are methods and apparatus for prioritization of transform domain coefficient data representing sources such as, but not limited to, single images and images in motion, so as to produce a... 

4729098 
System and method employing nonlinear interpolation for the display of surface structures contained within the interior region of a solid body
A method and apparatus for displaying three dimensional surface images includes the utilization of a case table for rapid retrieval of surface approximation information. Eight cubically adjacent... 

4719833 
Tone signal generation device with interpolation of sample points
A note clock generation circuit generates note clock pulses in correspondence to a note name of a tone to be generated. An octave rate data generation circuit generates rate data in correspondence... 

4718030 
Interpolated value computing device for a waveform generated in an electronic device
A device for computing interpolated values of a waveform generated in an electronic device, includes a memory for storing waveform data of a periodic sinusoidal wave, and an address signal... 

4718104 
Filtersubtractdecimate hierarchical pyramid signal analyzing and synthesizing technique
A pyramid frequency analyzing technique is taught in which an input sampled temporal signal is convolved with a spatially localized, gradual rolloff kernel weighting function, which is subtracted... 

4715257 
Waveform generating device for electronic musical instruments
An improved waveform generator used in an electronic musical equipment for reproducing musical sounds stored therein, in which the waveform of each musical sound is stored in a memory as a... 

4709394 
Multiplexed realtime pyramid signal processing system
The amount of hardware required to implement a Burt Pyramid or an FSD (filtersubtractdecimate) pyramid analyzer (or synthesizer) stage of a sampled temporal signal representing an ndimensional... 

4701956 
Tone signal processing device
A digital filter is provided between a tone signal generation circuit which supplies a digital tone signal in accordance with a first sampling frequency and a sampling circuit which resamples this... 

4698843 
Method for compensating for voiddefects in images
A multistage pyramid analyzer, modified to include extrapolation of the input to each stage, together with a pyramid synthesizer, may be used for filling in one or more void defects in an image to... 

4694414 
Digital delay interpolation filter with amplitude and phase compensation
A digital input signal to be delayed is applied to a twopoint linear interpolation filter which imparts delay to the signal proportional to the value of a delay control signal. Errors in both the... 