Column redundancy for two port random access memory
It is an object of the invention to provide a two port random access memory with a matrix array and redundant columns, to store data bits at predetermined logical column addresses, each logical column... Read More
Inventors: Gray, Kenneth S.; Herrman, Bradley D.;, Assignee: International Business Machine Corporation (Armonk, NY) |
Dynamic semiconductor memory device with high-speed serial-accessing column decoder
It is therefore an object of the present invention to provide a new and improved technique for high-speed serial-accessing operation in MOS memory devices. It is another object of the present inventio... Read More
Inventors: Tsuchida, Kenji; Watanabe, Yohji;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Multi-channel token ring
In view of the shortcomings of the prior art, it is a primary object of this invention to provide interconnected workstations and other devices with optimal use of multi-channel bandwidth. Optimal use... Read More
Inventors: Christensen, Kenneth J.; Noel, Jr., Francis E.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Semiconductor memory device and method of data transfer therefor
The present invention was made to solve the above described problem and its object is to prevent damage to the data stored in a non selected memory cell when partial data transfer is carried out betwe... Read More
Inventors: Kobayashi, Toshifumi; Morooka, Yoshikazu; Yamada, Michihiro; Hamamoto, Takeshi;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Virtual access cache protection bits handling method and apparatus
FIG. 1 illustrates a block level diagram of a portion of a computer system incorporating the present invention. The computer system of FIG. 1, includes a virtual address cache 130, a physical address... Read More
Inventors: Wang, Wen-Hann;, Assignee: Intel Corporation (Santa Clara, CA) |
Programmable VESA unified memory architecture (VUMA) row address strobe (RAS)
One advantage of the present invention is that it requires only a minimum amount of hardware modification to core logic (e.g., the memory controller device). Another advantage of this invention is tha... Read More
Inventors: Yap, Kok-Kean;, Assignee: Cypress Semiconductor Corp. (San Jose, CA) |
Multi-port RAM having functionally identical ports
What is claimed is: 1. A multi-port memory device comprising on a single chip: first and second input/output pins for providing data input and output, a DRAM main memory for storing data, a SRAM cache... Read More
Inventors: Camacho, Stephen; Cassada, Rhonda; Randolph, William L.;, Assignee: Mitsubishi Electronics America, Inc. (Cypress, CA) |
Image processor and method for processing pixel data
In accordance with the invention there is provided an image processor for processing pixel data defining an image and comprising image processing logic for detecting pixel data representing stepped ch... Read More
Inventors: Todd, Stephen J. P.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Method and apparatus for geometric model deformation using wires
It is an object of the present invention to provide a modeling primitive based on a wire. It is another object of the present invention to provide a deformation primitive that is independent of the co... Read More
Inventors: Singh, Karan Sher;, Assignee: Silicon Graphics, Inc. (Mountain View, CA) |
Object movement simulation apparatus
In view of the foregoing, it is therefore an object of the present invention to provide an object movement simulation apparatus capable of displaying a three-dimensional image in which a closest point... Read More
Inventors: Nozaki, Naoyuki;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Weather simulation system
One aspect of the invention is a method of using a computer to generate a visual display of weather conditions, using three-dimensional digital source data that represent real-world weather conditions... Read More
Inventors: Montag, Bruce C.; Wenzel, Dennis J.; Weyrauch, Richard P.;, Assignee: Southwest Research Institute (San Antonio, TX) |
Efficient rendering utilizing user defined shields and windows
The above-stated problems and related problems of the prior art are solved with the principles of the present invention, Efficient Rendering Utilizing User Defined Shields, which provides a mechanism ... Read More
Inventors: Menon, Jai P.; Rossignac, Jarek Roman;, Assignee: International Business Machines Corporation (Armonk, NY) |
Meshing method and apparatus
In view of the foregoing and other problems and drawbacks of the conventional systems and methods, an object of the present invention is to provide a meshing method for automatically generating a quad... Read More
Inventors: Itoh, Takayuki; Inoue, Keisuke; Yamada, Atsushi; Furuhata, Tomotake;, Assignee: International Business Machines Corporation (Armonk, NY) |
Interactive authoring of 3D scenes and movies
The computer system illustrated in FIG. 1--which includes mouse 37, keyboard 35, CPU 31 and CRT 33--represents a hardware setup for running software that allows a user to view and/or create virtual 3... Read More
Inventors: Carey, Richard Joseph; Immel, David Stanley; Strauss, Paul S.; Story, Robert David;, Assignee: Platinum technology IP, Inc. (Oakbrook Terrace, IL) |
System for polygon interpolation using instantaneous values in a variable
At present, perhaps video games are the most commonly known form of computer graphics apparatus. However, the field embraces many other forms of apparatus, as for use in training, design, modeling and... Read More
Inventors: Watkins, Gary S.; Brown, Russell A.;, Assignee: Evans & Sutherland Computer Corp. (Salt Lake City, UT) |
Computer graphics system and method for texture mapping using triangular interpolation
OF THE PREFERRED EMBODIMENTS The present invention is directed to a computer graphics system and method for texture mapping using triangular interpolation. In the present invention, triangular interp... Read More
Inventors: Gossett, Carroll Philip; Moore, Robert J.;, Assignee: Silicon Graphics, Inc. (Mountain View, CA) |
Determining texture coordinates in computer graphics
I claim: 1. A method for obtaining a texture coordinate TC1 of a point Q' to be displayed by a computer, the method comprsing: obtaining signals representing a modified texture coordinate TC1' and a v... Read More
Inventors: Jee, Suk Choon;, Assignee: Samsung Electronics Co., Ltd. (Seoul, KR) |
SDRAM data allocation system and method utilizing dual bank storage and retrieval
In one embodiment of the invention, a method is provided for allocating data among first and second banks of at least one SDRAM, the data includes first, second and third words to be accessed during c... Read More
Inventors: Dykstal, John; Alcorn, Byron A.; Emmot, Darel N.;, Assignee: Hewlett-Packard Company (Palo Alto, CA) |
Method for point sampling in computer graphics systems
Therefore, it is an object of this invention to provide a method for point sampling that is effective for generating high quality computer graphics imagery. It is also an object of the present inventi... Read More
Inventors: Latham, Roy Westlake;, Assignee: Loral Corporation (Newport Beach, CA) |
Graphic image display apparatus with high speed inversion of graphic image
It is an object of the present invention to provide a modified graphic image display apparatus capable of a high speed inversion of graphic images. According to the present invention, in a graphic ima... Read More
Inventors: Mizutani, Kenichi;, Assignee: NEC Corporation (Tokyo, JP) |
Image forming apparatus and method for forming an image by overlapping areas of different colors with each other
It is a general object of the present invention to provide an Image forming apparatus and a method for forming an image with a color image technology that eliminates the above-mentioned disadvantages.... Read More
Inventors: Matsuzuki, Masato;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Sprite engine
The invention provides a sprite engine or compositor that is well-adapted for a variety of host platforms. adaptable to the host platform. The invention minimizes the amount of drawing that occurs on ... Read More
Inventors: Apparao, Vidur; Furman, Scott;, Assignee: Netscape Communications Corporation (Mountain View, CA) |
Integrated graphics processor having a block transfer engine for automatic graphic operations in a graphics system
The present invention comprises a high-performance graphics processor with many novel hardware built-in features. Important in the graphics processor of the present invention is the BLT Engine which a... Read More
Inventors: Owen, Richard Charles Andrew; Mills, Karl Scott; May, Bradley Andrew; Linstad, Lauren Emory;, Assignee: Cirrus Logic, Inc. (Fremont, CA) |
Methods and apparatus for providing multiple pending operations in a cache consistent multiple processor computer system
Apparatus and methods for a cache controller preserving cache consistency and providing multiple outstanding operations in a cache memory structure supporting a high performance central processor unit... Read More
Inventors: Chang, Jung-Herng; Berg, Curt; Cruz-Rios, Jorge;, Assignee: Sun Microsystems, Inc. (Mountain View, CA) |
Multiprocessing system including an apparatus for optimizing spin--lock operations
The problems outlined above are in large part solved by a multiprocessing computer system employing an apparatus and method for optimizing spin-lock operations in accordance with the present invention... Read More
Inventors: Hagersten, Erik E.;, Assignee: Sun Microsystems, Inc. () |
Multi-pass clipping in a geometry accelerator
The present invention is a clipping machine controller that instructs an associated clipper to overwrite memory locations containing selected view-clipped vertex data with model-clipped vertex data wh... Read More
Inventors: Rossin, Theodore G.; Rojas, Edmundo; Strunk, Glenn W.;, Assignee: Hewlett-Packard Company (Palo Alto, CA) |
Image processing in which polygon is divided
The present invention is accomplished in view of the above mentioned problems. It is therefore an object of the present invention to provide an image processing apparatus which can process an image re... Read More
Inventors: Kawasaki, Tomoyuki;, Assignee: NEC Corporation (Tokyo, JP) |
System provided child window controls
In accordance with a first aspect of the present invention, a method is practiced in a computer system that has an input device, a video display and a processor that runs at least one application prog... Read More
Inventors: Chew, Chee H.; Konzen, Neil; Guzak, Christopher J.; Laney, Stuart T.; Pitt, III, George H.; Ellison-Taylor, Ian M.; Gery, Ron O.;, Assignee: Microsoft Corporation (Redmond, WA) |
Azimuth correction of head gaps
What is claimed is: 1. A method of adjusting and maintaining the correct angular position of a gap of a reproducing head relative to a signal on a magnetic record carrier which comprises: measuring th... Read More
Inventors: De Niet, Edmond; Rijckaert, Albert M. A.;, Assignee: U.S. Philips Corporation (New York, NY) |
Apparatus and method for measuring the speed of a movable system with respect to a data carrier
I claim: 1. Apparatus for measuring the speed of a movable system with respect to a carrier for data recorded on a plurality of tracks having addresses written on the carrier in a plurality of referen... Read More
Inventors: Maury, Christian;, Assignee: Compagnie Internationale Pour l'Informatique CII Honeywell Bull (Paris, FR) |
CPUs 
