Matches 1 - 39 out of 39


Match Document Document Title
8339295 Method and system for managing digital to time conversion  
A method and system for managing Digital to Time Conversion (DTC) is provided. The method comprises receiving a first Radio Frequency (RF) signal and a second RF signal. The second RF signal is a...
7809338 Local oscillator with non-harmonic ratio between oscillator and RF frequencies using wideband modulation spectral replicas  
A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes...
7778610 Local oscillator with non-harmonic ratio between oscillator and RF frequencies using XOR operation with jitter estimation and correction  
A novel and useful apparatus for and method of local oscillator (LO) generation with non-integer multiplication ratio between the local oscillator and RF frequencies. The LO generation schemes...
7707235 Free-running numerically-controlled oscillator using complex multiplication with compensation for amplitude variation due to cumulative round-off errors  
A method and apparatus for efficiently generating complex sinusoids of a desired frequency by multiplying a phasor by a predetermined value once every sampling interval, and using the highest...
6518802 Circuits and methods for generating an accurate digital representation of a sinusoidal wave  
A numerically controlled oscillator that generates an accurate digital representation of a repeating waveform such as a sinusoidal wave. Based on the desired output frequency, multiple samples are...
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),...
5495160 Digital sine wave generator and motor controller  
Digital sinusoidal waves are generated using a method based on an error measuring algorithm used to generate a synthesized circle. X and Y waves are generated step-wise to follow the contour of a...
5341317 Curvilinear approximation method  
A method for approximately representing a first curve having anchor points and a control point, wherein the first curve is subdivided into a plurality of segments and an approximate curve is...
4999797 Method of and device for circle generation  
A machine-implemented circle-generation method calculates a sequence of coordinates (xn, yn) of points approximating a circle or circular arc according to the iterative formula: ##EQU1## or an...
4866631 Method for generating offset surface data  
A method for generating offset surface data representing a tool path of a tool traversing patches which are mutually adjoining at boundary lines where there is no continuity of the osculating...
4835722 Curve generation in a display system  
A curve generator for a display system with an arc generator has for generating an arc (10) of a circle (14) from data defining the locations of two end points P1 and P3 and an intermediate point...
4789954 Method for generating quadratic curve signal  
Assuming that a given equation representing a quadratic curve is: F(x, y)=ax2 +bxy+cy2 +dx+ey+f=0,the method for generating quadratic curve signals repeatedly selects a point close to F (x, y)=0...
4736201 High speed image drawing method and apparatus therefor  
The tangent α of the tangential line of an image to be drawn at each point in an orthogonal X-Y coordinate system is classified into two angle regions, a first angle region, where a condition...
4692887 Circle and circular arc generator  
A circle and circular arc generator has a digital differential analyzer (DDA) for receiving coordinates on and a radius of a circle having its center at a specific point and for generating x and y...
4604695 Nibble and word addressable memory arrangement  
Apparatus is provided for addressing a memory by word and by one of a number of nibbles within a word, with the ability to increment or decrement nibble and word addresses and thereby access...
4493032 Method and apparatus for positioning using circular interpolation  
A method and apparatus are disclosed for providing very precise incremental motion of a numerically controlled machine tool, or other similarly controlled object, along a circularly arced path....
4484298 Method and device for generation of quadratic curve signal  
A method and system for generation of a quadratic curve signal expressed by f(x, y)=0 nonparametrically on coordinates X, Y, wherein, when linear micro-coefficients in the directions x, y are...
4371933 Bi-directional display of circular arcs  
An improved method and apparatus are disclosed for generating circular arcs of any arc length greater than zero up to and including a full circle of 360 degrees. The method and apparatus can...
4314351 Curve-generating device for visual display of symbols on a cathode-ray screen  
The curve-generating device serves in particular to produce signals relating to a circular line from simple algorithms. The device comprises means for computing a parameter ΔL defined by ##EQU1##...
4272808 Digital graphics generation system  
A real time digital graphics display system is disclosed for generating circles, arcs and vectors. The system utilizes Taylor's formula to determine the successive coordinates of the points along...
4240034 Digital frequency synthesizer  
A digital frequency synthesizer is disclosed wherein a series of binary level signals are produced, the level of such signals changing at a frequency related to a selected frequency f. The...
4135424 Variable function generator  
A fully digitalized function-of-time generator suitable for use as a tone envelope generator in a digital electronic musical instrument, comprising: a clock pulse generator for generating a clock...
4115863 Digital stroke display with vector, circle and character generation capability  
The digital stroke display generates vectors by applying clock pulses to an up/down counter which through a digital-to-analog converter provides the deflection voltage for one of the display X or...
4023027 Circle/graphics CRT deflection generation using digital techniques  
A system for generating respective X and Y beam deflection command signals as respective running binary counts in X and Y deflection counters utilizing digital computations based on the straight...
3917932 Generation of digital functions  
A method and system for determining the advance of a curve to be created on an X-Y plane, wherein the distances X and Y between the current position of the curve and a specific point assumed in...
3809868 SYSTEM FOR GENERATING ORTHOGONAL CONTROL SIGNALS TO PRODUCE CURVILINEAR MOTION  
A system for producing orthogonal control signals for display or tool control purposes. The orthogonal control signals are generated in response to received point and slope data for each of a...
3763363 NUMERICAL CURVE GENERATOR IN A MACHINE TOOL SYSTEM  
A method and system for determining the advance of a curve to be created on an X-Y plane, wherein the distances X and Y between the current position of the curve and a specific point assumed in...
3728528 CIRCULAR INTERPOLATION BY FINITE DIFFERENCES  
A sine cosine generator is described which can iteratively rotate an initial condition vector at a predetermined rate thus producing points which lie on a circle whose radius is determined by the...
3691551 SYSTEM FOR GENERATING TRACING SIGNALS FOR DISPLAYING OR RECORDING CHARACTERS  
In a display or recording device such as cathode ray tube or ink jet recording apparatus, the characters or indicia to be displayed or recorded are resolved into a plurality of strokes...
3674999 NUMERICAL FUNCTION GENERATOR  
A numerical function generator for use with numerical control systems in generating linear and nonlinear numerical functions including circular and parabolic functions. The input data indicative...
3634667 DIGITAL INTERPOLATOR  
A two dimensional curve f(x, y)= 0 to be followed up or reproduced is replaced with at least one straight line segment and/or circular arc. Supplied with the data defining the kind of the...
3619582 NUMERICAL CONTROL PULSE DISTRIBUTION METHODS  
In a line tracing apparatus under the control of pulses distributed in at least one of the X and Y directions, a digital control pulse distribution method in which several possible points are...
3524049 DIGITAL CURVE COMPUTER FOR MACHINE TOOL SYSTEMS  
959,268. Curve tracking. LICENTIA PATENT - VERWALTUNGS - G. m. b. H. April 11, 1963 [April 13, 1962], No. 14554/63. Addition to 953,922. Drawings to Specification. Heading G4A. Additional...
3506812 CIRCULAR INTERPOLATION SYSTEM  
3376412 Digital frequency filter and function generator  
3254203 Numerical curve generator, such as for machine tool systems  
3080555 Function generator  
2998190 Accumulator  
2933249 Accumulator  

Matches 1 - 39 out of 39