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"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 6005574 | Data processing system including method and apparatus for performing graphics clipping operations A list of graphics orders defining the graphics objects to be displayed is processed to generate a list of modified graphics orders representing those portions of the graphics objects not overlaid by an overlapping area. The mechanisms for clipping to the... | 12/21/1999 |
| 5812836 | System for processing iterative tasks in data processing systems A data processor comprises storage (e.g., registers) for each of first, second and third values, a processor condition register for processor condition codes, and logic for decoding instructions including a specific instruction defining an operation betwe... | 09/22/1998 |
| 5423044 | Shared, distributed lock manager for loosely coupled processing systems Apparatus and process for managing shared, distributed locks in a multiprocessing complex. The manager operates using a partitionable lock space with logical processor connection. Logically connected processors are subject to validation and disconnection ... | 06/06/1995 |
| 5361353 | System for parsing message units from an unstructured message stream of interleaved message units to form structured messages A system and method for analyzing computer generated message streams. Electronic messages containing displayable message information are parsed according to a set of parsing rules. The resulting tokens are organized into parse state records and stored for... | 11/01/1994 |
| 5355491 | Compiler including retargetable data generation A retargetable data generation method for a compiler program which may be executed on a general purpose information handling system such as an IBM System 370 includes the following steps, ordering the data according to a storage class, mapping the ordered... | 10/11/1994 |
| 5278948 | Parametric surface evaluation method and apparatus for a computer graphics display system A method and apparatus for evaluating and rendering parametric surfaces. The apparatus includes a system memory connected to a graphics control processor, which is connected to local memory, and then connected in a pipelined arrangement to a plurality of ... | 01/11/1994 |
| 5249265 | Structure storage management in a graphics display device A graphics data management system that includes control tables for quickly accessing information about the display structures to be drawn. A series of control tables and hashed indexes to graphics descriptors allow structure storage editing commands to qu... | 09/28/1993 |
| 5182797 | Multi-processor graphics display system for displaying hierarchical data structures A multi-processor graphics system including a general purpose system control processor for setting up the workstation environment and data traversal structures based upon an application model language description. Workload balancing and interprocessor com... | 01/26/1993 |
| 5148521 | Pick data queue for pipelined graphics system A pick queue and pick detection method that allows non-hierarchical graphic data models and applications to be used with pipelined processing systems. Pretransformed formatting logic is placed prior to pipeline processors to store necessary picking inform... | 09/15/1992 |
| 5119477 | Memory manager for hierarchical graphic structures Video random access memory having a random array and serial buffer is employed to speed the replication of structure state information used in the processing of hierarchical graphic data structures. Specialized circuitry in the video RAM and associated VR... | 06/02/1992 |
| 5043921 | High speed Z-buffer control Z-buffer control logic that provides access AND comparison at speeds unconstrained by DRAM memory access times. A Z-buffer controller is implemented which accumulates a number of pixels in adjacent locations into an associated cell. A Z-buffer comparator ... | 08/27/1991 |
| 5040130 | Computer graphics boundary--defined area clippping and extraneous edge deletion method A method for clipping a line segment boundary-defined area against a limiting plane is disclosed for use in a computer graphics display system wherein graphics figures are represented by random sets of polylines definitive of line segment boundary-defined... | 08/13/1991 |
| 4988984 | Image interpolator for an image display system An image interpolator implements an interpolation function providing real time, continuous zoom capability to an image dispaly system. Output image pixels are obtained by interpolating the values of the color or intensity of the 2×2 matrix of pixels surr... | 01/29/1991 |
