Visual Information Technologies, Inc.

Dwight D Dipert

David T Stoner

Jay A Thompson

Michael K Corry

John P Norsworthy

David M Pfeiffer

James A Fontaine

An image processor having an image algorithm processor (66) operating under control of a writable control store (94), and a number of parallel image processors (72) operating under control of instruction words from a writable control store (100). An image memory controller (68) receives memory addresses from the image algorithm processor (66) for coordinating the reading and writing of an image memory (82) using pixel data processed by the parallel image processor set (72). The image memory controller (68) arbitrates memory address request cycles, memory refresh cycles and screen refresh cycles. The image memory (82) includes different planes (84, 86 and 88) associated with red, green and blue pixel data. Associated with each image memory plane is a video processor (106) for converting parallel image data to high speed serial image data. The pixel data output by the video processor (106) is further processed through look-up tables (108) to provide red, green and blue color signals for output to a video monitor (28). Overlay data is stored in an overlay memory plane (90), and is processed by an associated overlay data processor (80) and a video output overlay processor (116). A window clipping circuitry monitors the memory addresses from the image algorithm processor (66) to determined whether one or more pixels of a multi-pixel word are located outside of a window.

High speed image processing computer with overlapping windows-div

An image processor having an image algorithm processor (66) operating under control of a writable control store (94), and a number of parallel image processors (72) operating under control of instruction words from a writable control store (100). An image memory controller (68) receives memory addresses from the image algorithm processor (66) for coordinating the reading and writing of an image memory (82) using pixel data processed by the parallel image processor set (72). The image memory controller (68) arbitrates memory address request cycles, memory refresh cycles and screen refresh cycles. The image memory (82) includes different planes (84, 86 and 88) assocated with red, green and blue pixel data. Associated with each image memory plane is a video processor (106) for converting parallel image data to high speed serial image data. The pixel data output by the video processor (106) is further processed through look-up tables (108) to provide red, green and blue color signals for output to a video monitor (28). Overlay data is stored in an overlay memory plane (90), and is processed by an associated overlay data processor (80) and a video output overlay processor (116). Mask data is generated by a mask processor coupled to the image algorithm processor (66) for masking one or more pixels in a multi-pixel word and further for masking individual bits within said pixels.

High speed image processing computer

Disclosed is an image processor having an image algorithm processor (66) operating under control of a writable control store (94), and a number of parallel image processors (72) operating under control of instruction words from a writable control store (100). An image memory controller (68) receives memory addresses from the image algorithm processor (66) for coordinating the reading and writing of an image memory (82) using pixel data processed by the parallel image processor set (72). The image memory controller (68) arbitrates memory address request cycles, memory refresh cycles and screen refresh cycles. The image memory (82) includes different planes (84, 86 and 88) associated with red, green and blue pixel data. Associated with each image memory plane is a video processor (106) for converting parallel image data to high speed serial image data. The pixel data output by the video processor (106) is further processed through look-up tables (108) to provide red, green and blue color signals for output to a video monitor (28). Overlay data is stored in an overlay memory plane (90), and is processed by an associated overlay data processor (80) and a video output overlay processor (116). The overlay processor is operable to generate page addresses to the color look-up tables responsive to image data in the overlay memory plane.

An image processor having an image algorithm processor (66) operating under control of a writable control store (94), and a number of parallel image processors (72) operating under control of instruction words from a writable control store (100). An image memory controller (68) receives memory addresses from the image algorithm processor (66) for coordinating the reading and writing of an image memory (82) using pixel data processed by the parallel image processor set (72). The image memory controller (68) arbitrates memory address request cycles, memory refresh cycles and screen refresh cycles. The image memory (82) includes different planes (84, 86 and 88) associated with red, green and blue pixel data. Associated with each image memory plane is a video processor (106) for converting parallel image data to high speed serial image data. The pixel data output by the video processor (106) is further processed through look-up tables (108) to provide red, green and blue color signals for output to a video monitor (28). Overlay data is stored in an overlay memory plane (90), and is processed by an associated overlay data processor (80) and a video output overlay processor (116).

High speed image processing system using separate data processor and

Disclosed is an image processor having an image algorithm processor (66) operating under control of a writable control store (94), and a number of parallel image processors (72) operating under control of instruction words from a writable control store (100). An image memory controller (68) receives memory addresses from the image algorithm processor (66) for coordinating the reading and writing of an image memory (82) using pixel data processed by the parallel image processor set (72). The image memory controller (68) arbitrates memory address request cycles, memory refresh cycles and screen refresh cycles. The image memory (82) includes different planes (84, 86 and 88) associated with red, green and blue pixel data. Associated with each image memory plane is a video processor (106) for converting parallel image data to high speed serial image data. The pixel data output by the video processor (106) is further processed through look-up tables (108) to provide red, green and blue color signals for output to a video monitor (28). Overlay data is stored in an overlay memory plane (90), and is processed by an associated overlay data processor (80) and a video output overlay processor (116). An error correction circuit is operable to detect and correct faulty data transferred between the image memory planes and their respective data processors.

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Richardson, TX, United States of America

Dwight D Dipert