Henry H. Rich
Residential Contractor at Betts Ln, Raleigh, NC

6108460, Aug 22, 2000

Jun 10, 1996

8/661028

Henry H. Rich - Raleigh NC

PixelFusion Limited - Bristol

G06K 936, G06K 954, H04N 140, G06F 900

382304

Methods, apparatus and program products provide load balancing in a paralell processing image generation system. In an image generation system for generating pixel values of a pixel array which corresponds to a group of geometric primitives which define a computer generated image where the image generation system includes a plurality of processing elements which are assigned to a specified pixel of the pixel array. The specification of pixels to processing elements is carried out to balance the processing load of the plurality of processing elements. Regions of the pixel array may be associated with subsets of the plurality of processing elements. A linear expression evaluator then provides region specific coefficients to the subsets of the plurality of processing elements. The plurality of processing elements may also be divided into a plurality of panels. The pixels are then associated with one of the plurality of panels and the linear expression evaluator provides region specific coefficients to the processing elements of the panel associated with the region.

6104842, Aug 15, 2000

Jun 10, 1996

8/661031

Henry H. Rich - Raleigh NC

Integrated Device Technology, Inc. - Santa Clara CA

G06K 932, G06K 936, G06K 954, G06K 960

382304

Method, apparatus and computer program products for transforming from model to screen coordinates by assigning specified subsets of the plurality of parallel processing elements respective model space geometric primitives. The respective specified subsets of the plurality of parallel processing elements are then provided a plurality of transformation matrices associated with respective model space geometric primitives. A unified transformation matrix for each primitive is then produced from the plurality of transformation matrices associated with each particular model space geometric primitive. The resulting unified transformation matrices are then applied to said geometric primitives by the processing elements to translate the geometric primitive from model coordinates to screen coordinates. The plurality of parallel processors may receive one of the plurality of transformation matrices and evaluate the received transformation matrix to determine if the received transformation matrix corresponds to the respective geometric primitive associated with the specified subset of the plurality of parallel processors. The received transformation matrix is concatenated with any previously received transformation matrices corresponding to the respective geometric primitive associated with the specified subset of the plurality of parallel processors if the received transformation matrix corresponds to the respective geometric primitive associated with the subset of the plurality of parallel processors.

5892517, Apr 6, 1999

Jun 10, 1996

8/661194

Henry H. Rich - Raleigh NC

Integrated Device Technology, Inc. - Santa Clara CA

G06T 1500

345430

Methods, apparatus and computer program products for applying texture to the surfaces of objects in graphics images utilizing texture patterns organized into blocks of texels. Each block of texels is preferably compressed using a block-oriented compression technique and then compressed further using entropy coding. Multiple processing elements rendering an image make requests for texels by address. The texel addresses are converted to block addresses, and the block addresses are consolidated and redundant requests are eliminated. The blocks are retrieved from texture pattern memory, performs entropy decoding, and transfers the data to the processor array such that the likelihood of redundant retrieval of texture data is reduced. The processing elements utilize the retrieved texture data for calculation of pixel values utilizing the texture information.

5923338, Jul 13, 1999

Sep 17, 1997

8/932903

Henry H. Rich - Raleigh NC

Integrated Device Technology, Inc. - Santa Clara CA

G06F 1580

345505

An image generation system is provided which includes a processing element array comprised of a plurality of processing elements, wherein the processing elements are interconnected such that processing elements in said processing element array communicate directly with each other. The processing elements are divided into a plurality of panels. Global bus interconnection means allow for communicating information on one panel communications bus to the other panel communication buses. Validity flags of the global bus interconnection indicate which bytes are valid on the bus. A microcode cache may also be included.

5933131, Aug 3, 1999

Mar 25, 1998

9/048195

Henry H. Rich - Raleigh NC

Integrated Device Technology, Inc. - Santa Clara CA

G09G 504

345155

Methods, systems and computer program products are provided which utilize luminance in the reduction in resolution of high-resolution values of the color components to provide reduced-resolution values of the color components. These methods, systems and computer program products preferably reduce the resolution of the high-resolution-value of the color components for a picture element to provide reduced-resolution values based upon the difference in luminance between the high-resolution values of the color components and the reduced-resolution values of the color components. Preferably, the difference between the luminance of the high-resolution values of the color components and the reduced-resolution values of the color components is minimized.

5488687, Jan 30, 1996

Sep 17, 1992

7/946082

Henry H. Rich - Raleigh NC

Star Technologies, Inc. - Sterling VA

G06T 160

395164

An image generator with a system to affix a flag for identifying high resolution pixel data in a signal of both high and low resolution pixel data, so that high resolution pixel data is divided readily for separate treatment in a high resolution frame buffer. The low resolution pixel data is connected to a low resolution frame buffer where it is treated with an occlusion mask in accordance with occlusion fractional coverage computed separately. The pixel data is combined again in a mixer before it is converted for visual display.

5949426, Sep 7, 1999

Jan 28, 1997

8/787752

Henry H. Rich - Raleigh NC

Integrated Device Technology, Inc. - Santa Clara CA

G06T 500

345430

Methods, systems and computer program products for texturing a picture element of an image. These methods, systems and computer program products include blending texture values from a first texture map corresponding to a first level of detail with texture values from a second texture map corresponding to a second level of detail to create a textured value for the picture element. The blending of the two texture maps, however, only occurs if the magnitude of deviation of the level of detail corresponding to the picture element from a level of detail of the first texture map is greater than a threshold value. The threshold value may be selected based upon the perceptibility of differences between the level of detail of the picture element and the level of detail of the first texture map.

5327509, Jul 5, 1994

Apr 27, 1992

7/873815

Henry H. Rich - Raleigh NC

Star Technologies, Inc. - Sterling VA

G09B 908

382 17

The disclosure describes the use of an image generator connected to receive at least two, and preferably three, base colors that have been previously compressed using two blend factors to interpolate degrees of color intensity in a texture image. A decoder circuit to restore the compressed image color data for each data path from memory uses a color blender circuit to restore the color components from data from each path to produce that color at an output terminal. A provision is described for including translucency also.

5796385, Aug 18, 1998

Jan 28, 1997

8/790150

Henry H. Rich - Raleigh NC

Integrated Device Technology, Inc. - Santa Clara CA

G09G 504

345155

Methods, systems and computer program products are provided which utilize luminance in the reduction in resolution of high-resolution values of the color components to provide reduced-resolution values of the color components. These methods, systems and computer program products preferably reduce the resolution of the high-resolution-value of the color components for a picture element to provide reduced-resolution values based upon the difference in luminance between the high-resolution values of the color components and the reduced-resolution values of the color components. Preferably, the difference between the luminance of the high-resolution values of the color components and the reduced-resolution values of the color components is minimized.

5831625, Nov 3, 1998

Jun 10, 1996

8/661092

Henry H. Rich - Raleigh NC
Paul D. MacDougal - Raleigh NC

Integrated Device Technology, Inc. - Santa Clara CA

G06T 740

345430

A method, apparatus and computer program product for generating a texture map having a plurality of levels of detail for use in rendering an image which is displayed on a graphical display. A specified level of detail of the texture map is encoded as a sum of a plurality of scaled wavelet basis functions. A texture map corresponding to a more coarse level of detail of the texture map is generated from the wavelets comprising the lower frequency wavelets of the wavelet basis functions of the texture map corresponding to a finer level of detail. Preferably, the wavelet basis functions comprise Haar wavelet basis functions. Lower frequency wavelets from which the coarser level of detail texture map is reconstructed may comprise the lower half of the frequencies of the wavelet basis functions of the texture map corresponding to the immediately finer level of detail.