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| Number | Title | Issue Date |
| 4736201 | High speed image drawing method and apparatus therefor The tangent 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 -1ࣘ | 04/05/1988 |
| 4698768 | Process for smoothing the curves generated in a television scanning system A process for smoothing curves, comprising previous storage of a predetered number of patterns formed from at least two adjacent pixels disposed on the same line or in the same column, step-by-step calculation of the theoretical curve to be plotted, dete... | 10/06/1987 |
| 4688182 | Method and apparatus for generating a set of signals representing a curve Disclosed is a method and system generating a series of signals representing nodes on a locus of a curve partially defined by a set of related knots, using a compiler in the form of a Hermite cubic parametric polynomial with said knots defining the end po... | 08/18/1987 |
| 4686632 | Method and apparatus for generating a set of signals representing a curve Disclosed is encoded data representing knots on an outline defined relative to a coordinate plane involving selecting sets of coordinates on said outline, to represent said knots, establishing a successive order of said knots, encoding said knots in a dat... | 08/11/1987 |
| 4686635 | Method and apparatus for generating a set of signals representing a curve Disclosed is encoded data representing knots on an outline defined relative to a coordinate plane and decoded for use in a display process to produce images of said outlines represented by said encoded data involving selecting sets of coordinates on said ... | 08/11/1987 |
| 4686633 | Method and apparatus for generating a set of signals representing a curve Disclosed is encoding data representing knots on an outline loop defined relative to a coordinate plane, for producing a display image of said outline and decoding responsive to the interrelationship of said knots on said outline loop, and imaging said ou... | 08/11/1987 |
| 4686634 | Method and apparatus for generating a set of signals representing a curve A method and system is shown for generating a series of signals representing nodes on a locus of a curve partially defined by a set of related knots, using a Hermite cubic parametric polynomial relationship, with said knots defining the end points of resp... | 08/11/1987 |
| 4686636 | Method and apparatus for generating a set of signals representing a curve A method and system is shown for encoding data representing knots on an outline defined relative to a coordinate plane and for generating a series of signals representing nodes on the locus of a curve partially defined by said set of knots, involving, sel... | 08/11/1987 |
| 4682189 | Reproduction of character images, particularly for typesetting apparatus Character images are recreated and displayed on an incrementing plotter, such as a cathode ray tube (92), with a smoothly continuous outline and not as a discontinuous assembly of stripes or dots. A master curve, e.g. a spiral, is stored electronically in... | 07/21/1987 |
| 4675833 | Processor controlled photocomposition system A photocomposition system operating under microprocessor control to load, and alternatively display, character data from two respective bit maps. The data is assembled in the bit maps as a series of vertically adjacent video words generated from font data... | 06/23/1987 |
| 4674059 | Method and apparatus for generating a set of signals representing a curve Disclosed is encoding and accessing a single data set of solution values functionally related to and representing the solution set to at least two domains of a variable, involving defining a single data set of solution values functionally related to a fir... | 06/16/1987 |
| 4648049 | Rapid graphics bit mapping circuit and method A circuit and method for a display controller especially adapted for display memories organized in arrays. The invention permits high speed modification of the contents of a display by generating the address signals of a selected linear pattern as the dat... | 03/03/1987 |
| 4620287 | Method and apparatus for representation of a curve of uniform width A graphic arts method and apparatus for representation on suitable media of curves having uniform widths is disclosed. A method and apparatus of the present invention converts curve figure data into a reduced data set which defines a plurality of intercon... | 10/28/1986 |
| 4510568 | Graphic processing method A graphic processing method in which a processing unit of a graphic input device is constituted by a computer, and a plurality of processing programs are stored beforehand in a memory of a host device. A predetermined processing program in accordance with... | 04/09/1985 |
| 4459676 | Picture image producing apparatus A picture image producing apparatus has a control unit for designating picture image calculation, a display unit for displaying a picture image, and a processing unit for storing standard information used in the picture image calculation. The standard inf... | 07/10/1984 |
| 4396988 | Method and apparatus for automatically determining the X-Y intersection of two curves in a raster type display system including a buffer refresh memory A method and apparatus for determining the X--Y coordinates on the raster of the intersection of two curves one of which is stored in the display system raster refresh buffer. The second curve is generated by a curve generator or some other source of sequ... | 08/02/1983 |
| 4384286 | High speed graphics A display processor for displaying complex curves includes an initiating processor, responsive to indicia selection signals for producing signals representing at least one coordinate on said indicia, and recursive processor means responsive to said initia... | 05/17/1983 |
| 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 locate nonsymmetrical closest points for noninteger radius and a... | 02/01/1983 |
| 4319331 | Curve follower A curve follower or line tracing system for converting the common representation of patterns of lines into features which are readily usable as inputs to an adaptive information processing system such as a Nestor adaptive module. The problem addressed by ... | 03/09/1982 |
| 4146925 | Graphics generator A graphics generator responds to signals defining a pattern to be displayed. The pattern comprises a plurality of pattern segments each of which may be a vector, conic or alpha numeric character. The graphics generator produces digital signals which are c... | 03/27/1979 |
| 4117473 | Display system for displaying information in the form of a horizontally oriented curve on a raster type CRT A horizontally oriented curve is produced on a raster type cathode ray tube display by storing curve data words in a memory and placing a series of dots on the cathode ray tube screen with each dot being at a height dictated by the value of the respective... | 09/26/1978 |
| 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 Y axes. The clock pulses are applied through a gate to a se... | 09/19/1978 |
| 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 described mathematically by a multi-valued function. One p... | 02/14/1978 |
| 4038668 | Apparatus for producing smooth and continuous graphic displays from intermittently sampled data A display apparatus includes a computational circuit that is connected to the output of a memory to introduce between a stored digital representation of successive sampled data points, by an interpolation method, additional virtual or interpolated data po... | 07/26/1977 |
| 3987284 | Conic generator for on-the-fly digital television display Apparatus is disclosed to implement a recursive technique to generate the coordinates of horizontal raster line components which intersect a conic-section shape to be represented. The apparatus cooperates with a refresh buffer which stores the video data ... | 10/19/1976 |
| 3984664 | Digital system for generating a circle on a raster type television display A system is disclosed for generating a circle on a television raster display utilizing digital techniques. An x coordinate counter, a y coordinate counter, a radius number, and a radius +δ number, in parallel to each other, are connected to the input ter... | 10/05/1976 |
