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| Number | Title | Issue Date |
| 5003498 | Graphic display method A three-dimensional shape as a synthesis of three-dimensional geometry entities is controlled and displayed. The geometry entities are controlled in accordance with information defining the geometry entities, and layout information arranged in a three-dim... | 03/26/1991 |
| 5001470 | Three-dimensional display apparatus A three-dimensional display apparatus approximates a three-dimensional object by planes and expresses each of the planes by pixels on a plurality of scan lines, thereby to acquire a display image. A designation circuit designates a plurality of pixels on ... | 03/19/1991 |
| 4994989 | Displaying method and apparatus for three-dimensional computer graphics A display apparatus and a modelling method for computer graphics includes a first memory for storing a first three-dimensional model, a detailed model, of a body represented by at least one of desired first number of dimensions, a desired first number of ... | 02/19/1991 |
| 4956787 | Elimination work simulator apparatus An elimination work simulator has not only a difference operation processor to attain a difference between work object space data and work space data but also a product operation processor to execute a product operation therebetween. Elimination work spac... | 09/11/1990 |
| 4937768 | Integrated assembly system A method of assembling the separate components of a multi-component article includes generating a master definition of the article as a graphic data set in a 3-dimensional graphics computer system including coordinate points precisely locating the design ... | 06/26/1990 |
| 4893260 | Three-dimensional geometry processing method and apparatus therefor Three dimensional solid geometry in an analysis domain is divided into primitives which are three dimensional solid geometry elements such as a parallelepiped, column or globe, and each primitive is divided into scanning lines having a predetermined thick... | 01/09/1990 |
| 4890249 | Data compression and decompression for digital radar landmass simulation A unique digital radar landmass simulator (DRLMS) uses different culture data compression techniques and hardware from that used in the conventional DRLMS systems. The application of these techniques to DRLMS results in a system that is small in size and ... | 12/26/1989 |
| 4890242 | Solid-modeling system using topology directed subdivision for determination of surface intersections A system for topology directed subdivision of a pair of surfaces to identify intersecting portions thereof includes the steps of obtaining a pair of surfaces from a main pool of surface representations and performing a mutual point exclusion test to deter... | 12/26/1989 |
| 4888711 | Image interpretation method and apparatus using faces for constraint satisfaction A method, for practice on a computer, for interpreting two-dimensional images of three-dimensional scenes is disclosed. Descriptive labels are assigned to the vertex, edge and face elements of the image. A process of constraint satisfaction and propagatio... | 12/19/1989 |
| 4888583 | Method and apparatus for rendering an image from data arranged in a constructive solid geometry format A method and an apparatus render on a display screen (14) an image of a three-dimensional object. The object is represented by image data arranged in a constructive solid geometry format including at least one halfspace that divides an object space (28) i... | 12/19/1989 |
| 4868766 | Method of generating and processing models of two-dimensional or three-dimensional objects in a computer and reproducing the models on a display A method of generating and processing models of two-dimensional and three-dimensional objects in a computer and of reproducing the models on a display is presented. The models are created according to the user's instruction by means of geometric operation... | 09/19/1989 |
| 4864520 | Shape generating/creating system for computer aided design, computer aided manufacturing, computer aided engineering and computer applied technology A form creating system providing a free access to a form to be created through the whole process from its first or design step to its final or manufacturing step. In this system, the position of a third point and the direction of a third straight line are... | 09/05/1989 |
| 4860220 | Apparatus for displaying three-dimensional objects Display apparatus retrieves the form and position data for each of a plurality of three-dimensional objects from an environmental data memory and gives a two-dimensional figure display of the plurality of three-dimensional objects on the display in accord... | 08/22/1989 |
| 4858149 | Method and system for solid modelling A method of generating a spatial representation of a 3-D solid object, which includes component shapes, which can be defined by transforming constructive solid geometry primitives includes the steps of, setting up a structure, to define the object in term... | 08/15/1989 |
| 4858150 | Shape modeling system A shape modeling method of the interactive operation type for generating a 3-dimensional shape of an object using 2-dimensional wire-frame figures formed by a drawing system, which inputs 2-dimensional coordinate system data of a hierarchical structure th... | 08/15/1989 |
| 4821214 | Computer graphics method for changing the shape of a geometric model using free-form deformation A method of using a computer graphic system for free-form deformation of geometric models. The method is based on the use of a control-point grid which is imposed on the model and which can then be moved by a system designer to specify a deformation to a ... | 04/11/1989 |
| 4797842 | Method of generating finite elements using the symmetric axis transform A method, amenable to automation, for generating finite elements of a geometric model. The model is first subdivided into coarse subdomains and then the coarse subdomains are further subdivided. The coarse subdivision is performed using a symmetric axis t... | 01/10/1989 |
| 4791583 | Method for global blending of computer modeled solid objects using a convolution integral A method for generating a plurality of points that lie on the surface of a blended solid model. These points are obtained from the unblended solid model by a numerical solution to a convolution integral, wherein the convolution integral includes a spheric... | 12/13/1988 |
| 4791579 | Process and apparatus for graphically representing a variable structure in perspective A method and apparatus for representing a processed workpiece in perspective with invisible covered edges on the picture screen of a numerically controlled machine tool includes the steps of resolving both the workpiece and the tool into equidistant secti... | 12/13/1988 |
| 4785399 | Shaping geometric objects by cumulative translational sweeps Cumulative translational sweeps are used to shape geometric objects in a computer model, and they permit display of the resulting changes in shape in the object modelled, and control of processes involving the object modelled. If the geometric object is p... | 11/15/1988 |
| 4757461 | Process for graphically representing a structure A process for graphically representing a simulated workpiece as processed by a numerically-controlled machine tool. Stored data defining the workpiece and the tool as well as program data defining relative movement therebetween are used to generate polygo... | 07/12/1988 |
| 4736306 | System for conversion between the boundary representation model and a constructive solid geometry model of an object A system converts from the boundary representation of an object to the constructive solid geometry representation thereof. The system converts the boundary representation of the object into elemental atomic geometrical units or I-bodies which are in the s... | 04/05/1988 |
| 4731607 | Data input and display device for a numerical control grinding machine An interactive data input device for a numerical control grinding machine is provided with a key board for inputting data which defines the shapes of a number of machining portions formed on a cylindrical workpiece and a central processing unit for contro... | 03/15/1988 |
| 4677576 | Non-edge computer image generation system A computer image generation system is described which models objects without the necessity of linear edges. The system is adaptable for dynamic (real time) image generation from a compact model base for use in, for example, flight training systems. Scene ... | 06/30/1987 |
| 4649498 | Computer systems for curve-solid classification and solid modeling A computer system is introduced for curve-solid classification (raycasting) of objects in constructive solid geometry (CSG) modeling to produce image representations of two- or three-dimensional objects. The system carries out curve-solid classifications ... | 03/10/1987 |
| 4631690 | Multiprocessor computer system for forming a color picture from object elements defined in a hierarchic data structure A multiprocessor system for forming a color picture from object elements defined in a hierarchic data structure. The object elements are Bezier polygons each of the sides of which forms a Bezier curve. There is provided an array of parallel connected poin... | 12/23/1986 |
| 4600919 | Three dimensional animation The disclosure is directed to an improved method and apparatus for generating a sequence of video frames representative of three-dimensional animation. A plurality of key frames are stored, each key frame including a common figure having one or more joint... | 07/15/1986 |
| 4375674 | Kinesimetric method and apparatus Disclosed are apparatus and method for the determination of functional capability of bodies. Reach as well as velocity, acceleration and force generation at various positions may be determined for a body by a three dimensional kinesimeter equipped with an... | 03/01/1983 |
| 4275449 | Modelling arrangements A collection of modelling elements having distinct forms and changeably interengageable for assembly to one another. Each element includes information stores and signalling paths via which said stores are connected in an information transfer network to en... | 06/23/1981 |
