EP0266506A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image display processor for graphics workstation
Assignee: International Business Machines Corp
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Filing: 1987-08-31
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Granted: —
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Expires: 2007-08-31
Abstract
Abstract A graphics workstation includes a microprocessor (10), a system memory (40) for storing graphics and image (for example, optical scanner) data. A graphics data processor (20) and an image data processor (80) are connected to receive respective data from the memory and operate to modify the data and apply it to a pair of frame buffers (30, 32) which are interleaved such that while one is applying data to a display device, the other is receiving data from one or both of the graphics and image data processors.
Inventors
- 👤 Jorge Gonzalez-Lopez
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 05:53
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/02; G09G5/06; G09G5/36; G09G5/39; G09G5/399
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
A graphics workstation for displaying both image data and graphics data, including continual processing means (10) for controlling workstation functions, storage means (40) for storing image data and graphics data, graphics data processing means (20) for processing graphics data from said storage means, and display means for displaying image and graphics data, characterised by: image data processing means (80) for processing image data from said storage means; and a plurality of interleaved frame buffers (30,32) for storing data to be displayed from the graphics and image data processing means.
Claim 2
Dependent Claim
89 words
A graphics workstation for displaying both image data and graphics data, including continual processing means (10) for controlling workstation functions, storage means (40) for storing image data and graphics data, graphics data processing means (20) for processing graphics data from said storage means, and display means for displaying image and graphics data, characterised by: image data processing means (80) for processing image data from said storage means; and a plurality of interleaved frame buffers (30,32) for storing data to be displayed from the graphics and image data processing means.
Claim 3
Dependent Claim
61 words
A graphics workstation according to claim 1 in which said image data processing means includes: means (83) for converting input image data into a form suitable for said frame buffers; means (92, 94) for storing the converted image data; and address means (82, 102, 104) for controlling the read out of data from said means for storing to said frame buffers.
Claim 4
Dependent Claim
18 words
A graphics workstation according to claim 2 in which said means for converting includes look-up table means (88).
Claim 5
Dependent Claim
57 words
A graphics workstation according to claim 3 in which said means for converting further includes a plurality of mask registers (90) and logic means (96, 98) coupled to the output of said look-up table means and said mask registers for modifying the outputs of the look-up table means in accordance with the contents of the mask registers.
Claim 6
Dependent Claim
50 words
A graphics workstation according to any of claims 1 to 4 including a pair of said frame buffers interleaved such that while one frame buffer is read out to provide video data to the display means, the other is receiving new data for the next image on the display means.
References Cited (Backward Citations)
No citation records indexed.
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