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Document Title 

5812983 
Computed medical file and chart system
A method for integrating and displaying medical data in which a computer program links a flow sheet of a medical record to medical charts. The flow sheet has a standardized time scale in the rows... 

5801678 
Fast bilinear interpolation pipeline
A highspeed realtime bilinear interpolation apparatus is disclosed for scaling an old M×M' image into a new N×N' image by which the pixel value of a new pixel q(x', y') is interpolated from the... 

5792970 
Data sample series access apparatus using interpolation to avoid problems due to data sample access delay
A data sample series access system including an interpolating section for obtaining, by interpolation, sound data at a timing indicated by a sound interpolation timing signal by using at least two... 

5774478 
Interpolation circuit for interpolating error data block generated in Σ modulated data stream
An interpolation circuit and a recording and/or reproducing apparatus including an interpolation circuit are disclosed. The interpolating circuit calculates an average value of data positioned... 

5774386 
Method and apparatus for performing function evaluation using a cache
An interpolation system that breaks a color transform interpolation function into several suboperations or subfunctions. The subfunctions produce intermediate function results. The intermediate... 

5751926 
Function approximation using a centered cubic packing with tetragonal disphenoid extraction
The invention provides approximation of the value of a function of three variables. The invention embraces three processes: function domain packing, polyhedron extraction, and volumetric... 

5751611 
Display device for linearly displaying a nonlinear input variable
A display device, in form of a panel meter which includes a combination of a linear bar graph and digital numeric display, linearly displays a nonlinear input variable at an infinite number of... 

5744742 
Parametric signal modeling musical synthesizer
A parametric signal modeling musical tone synthesizer utilizes a multidimensional filter coefficient space consisting of many sets of filter coefficients to model an instrument. These sets are... 

5740344 
Texture filter apparatus for computer graphics system
A process and apparatus are disclosed for obtaining a texture color value Cr for an object surface point from two texture color values Cri and Crj (which themselves may be interpolated texture... 

5740089 
Iterative interpolator
An iterative interpolator permits linear interpolation between a first known value and second known value, which are defined by ncoordinate values in an ndimensional coordinate system. An... 

5734688 
Interpolation pulse generating device with twostep interpolation
Signals Sj and Sj1 that are deviate from each other by a phase value of 2 π/M are generated by combining two sinusoidal detection signals. A reference signal ΔS is generated which represents a... 

5694345 
Hardware efficient interpolation filter
An interpolation filter includes a subtractor, a weighting circuit and an adder, wherein the subtractor is conditioned to form differences of adjacent original samples, and the weighting circuit... 

5684981 
Memory organization and method for multiple variable digital data transformation
A method and device for multidimensional data transformation is disclosed. A multidimensional, nonlinear data memory storage construct provides simultaneous access to data in all dimensions... 

5673210 
Signal restoration using leftsided and rightsided autoregressive parameters
Signal reconstruction methods reconstruct a missing portion of a signal from a first known portion of the signal preceding the missing portion, and a second known portion of the signal succeeding... 

5638128 
Pixel interpolation filters for video decompression processor
A method and apparatus are disclosed for interpolating pixels to obtain subpels for use by a video decompression processor. A prediction area is defined from which subpels are necessary to... 

5598353 
Method and apparatus for combining a multiplebit digital audio signal with a singlebit digital audio signal
An apparatus and method for combining a multiplebit digital audio signal with a single bit audio signal is provided. A host computer receives a singlebit audio signal from one or more PCMCIA... 

5594675 
Reduced signal processing requirement sample and hold linear phase interpolative fir filter
A digital FIR filter for producing an L phase interpolation of a input sample ##STR1## based on L filter banks and n tap coefficients P1 (i) in each 1th one of the filter banks is disclosed, where... 

5566250 
Process and apparatus for pseudoSIMD processing of image data
Methods and apparatuses for processing pixel images using conventional nonparallel processors. At least two values corresponding to at least two different pixels of the image are loaded into a... 

5519647 
Apparatus for and method of generating an approximation function
An apparatus (5) for generating an approximation function based on first pairs ((X1, Y1) to (X6, Y6)) of values associating a dependent variable (Y1 to Y6) with an independent variable (X1 to X6),... 

5513120 
Special interpolation filters
An interpolation filter that enables interpolation without changing the values of the interpolated points coinciding with the sampled data points, the signal content of the original image, or the... 

5508605 
Method for measuring RF pulse frequency
A method for measuring the frequency of a stream of RF pulses using multipurpose, commercialofftheshelf test devices, such as an RF signal down converter, a digitizer and a signal processor.... 

5502662 
Method and apparatus for quadratic interpolation
A method of signal sample interpolation utilizing a second order curve utilizing a linear interpolator to select a midpoint between respective input samples, eliminating phase error and spatial... 

5481583 
Higher order preinterpolator for backprojection
Xray detectors (24) of a CT scanner (10) generate data values which are preprocessed and assembled (26) into binary data lines. The binary data lines are convolved by a convolver (30) which... 

5479272 
Color gradation correction system of combination of lookingup table and interpolation and method thereof
A color correction system and method for correcting three kinds of color gradation input data, each having an m bit length, to produce three kinds of corrected color gradation data, each having an... 

5473638 
Digital signal processor delay equalization for use in a paging system
A method and apparatus provide an equalization time delay to synchronize a plurality of paging transmitters in a simulcast paging system. A delay equalization circuit (41 ) appropriate for use... 

5432892 
Volummetric linear interpolation
A technique which efficiently approximates a continuous function employs volummetric linear interpolation and implements the interpolation process in an arithmetic apparatus which calculates a... 

5402533 
Method and apparatus for approximating a signed value between two endpoint values in a threedimensional image rendering device
A method and apparatus for providing a correctly signed result of a linear interpolation (LIRP) function in a compute controlled display system. A correctly signed LIRP evaluation may be performed... 

5396441 
Signal interpolation apparatus and signal interpolation method
A signal interpolation apparatus in which first signals of the same type as a first signal selected and taken out at a given time point from several types of signals having a predetermined... 

5373236 
Highly accurate zero crossings for frequency determination
The technique to measure the frequency very accurately for electronic warfare (EW) applications, and is simple in hardware, and which can accomplish this goal with a signal with real data (in... 

5365467 
Signal processor for providing variable acoustic effect
A musical tone signal processor is included of a computation unit, a register, a controller and an interpolator, and imparts a variable acoustic effect to a musical tone signal. The computation... 

5351086 
Lowbit rate interframe video encoder with adaptive transformation block selection
An interframe video encoder of the type known as a hybrid coder, combines the advantages of both the interfield and the interframe codings for low bitrate video transmission. The pel elements of... 

5351087 
Two stage interpolation system
A two stage interpolation system provides greater bandwidth for signals compressed and expanded by interpolation, for example video signals displayed in a zoom or enlarged mode. A finite impulse... 

5347375 
Computerassisted holographic image formation technique which determines interference pattern data used to form the holographic
A computergenerated hologram recording apparatus includes a diffraction image generator which receives an input image signal representing an object and computes a corresponding diffraction... 

5345541 
Method and apparatus for approximating a value between two endpoint values in a threedimensional image rendering device
A method and apparatus for approximating a value distributed between two endpoints. The method and apparatus are embodied in a rendering device for calculating pixel shading values for the display... 

5345381 
Spiral scan computer tomography apparatus
A computer tomography apparatus undertakes a threedimensional scanning of the examination subject with relative motion between the rotating measurement unit and the patient, the relative motion... 

5331566 
Digitizing apparatus with extensionintersection measuring function
A digitizing apparatus capable of significantly shortening processing time is arranged to obtain straight portions from measured pointgroup data and is arranged to obtain the coordinates of... 

5298672 
Electronic musical instrument with memory read sequence control
An electronic musical instrument utilizes a memory unit containing sampled values of waveforms stored in separately addressable memory locations. A first waveform address bus and a second waveform... 

5293369 
Asynchronous sampling digital detector system for magnetic and optical recording channels
A variable samplingrate digital channel phase detector for reading synchronous data recordings from magnetic or optical media. Alldigital implementation allows multiplexing of several parallel... 

5293520 
Jitter analyzer
Periods Pk between the one edges of input pulses are measured one after another by a successive period measuring circuit, and at the same time, the time interval between the one edge to the other... 

5290965 
Asynchronous waveform generating device for use in an electronic musical instrument
A waveform generating device applicable to musical tone generating circuitry employed in electronic musical instruments is disclosed. The device digitally stores sampled waveform data. The data is... 

5274577 
System for linearizing a nonlinear sensor output
A processor is described for monitoring a sensor whose output signal follows a nonlinear curve in response to a linear change in a monitored phenomenon. The processor converts the sensor signal to... 

5266734 
Musical tone synthesizing apparatus performing highspeed nonlinear operation
A musical tone synthesizing apparatus includes an excitation circuit, a resonator circuit, and a resampler. The excitation circuit generates an excitation signal, through a nonlinear... 

5258938 
Interpolating method using bitshift and addition/subtraction operations
In an interpolating method for interpolating interpolated data between discrete items of digital data, there are obtained values of (2n1) number of interpolated points which divide, into 2n... 

5257355 
Method and apparatus for generating nonlinearly interpolated data in a data stream
A method and apparatus generates nonlinearly interpolated point data of a graphic display. At least four graphic point data are retained in a memory and are arithmetically processed to generate... 

5235534 
Method and apparatus for interpolating between data samples
A method and apparatus for interpolating between data samples (VS) that preserves the frequency spectrum of a sampled analog signal (VO) is provided. Data samples (VS) are interpolated to produce... 

5216626 
Position measuring apparatus and method having reduced memory requirements
In a position measuring system, periodic scanning signals are obtained by scanning a measurement embodiment. These scanning signals are interpolated with greater precision with the aid of a... 

5194681 
Musical tone generating apparatus
A tone generated by a tone source is converted to an electric signal and this electric signal is sampled. The converted digital data are stored in a first memory, and parts which are to become a... 

5191545 
Interpolator increasing the output word rate of a digital signal
A multiplex interpolator handles 4 series of multibit input words . . . , Si, Si+1, . . . applied in parallel at 32 kHz after conversion through an input series to parallel converter (SIPO) and... 

5191546 
Timeinterpolation method for digital beamformers
An improved timeinterpolation method for digital timedomain beamformers provided. The method determines an input channel value at a known fractional delay as a twostage process. In a first... 

5185817 
Image processor
An image processor for converting an input matrix of input pixels into an output matrix of output pixels, where the number of input pixels differs from the number of output pixels. From the input... 