GB2141908A
Expired / Lapsed
GB
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Multi-level raster scan display arrangement
Assignee: Westinghouse Electric Corp
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Filing: 1984-05-21
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Granted: —
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Expires: 2004-05-21
Abstract
No abstract record available.
Inventors
- 👤 Matthew Joseph Bieneman
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-31 23:17
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/14; G09G2340/00; G09G2340/12; G09G2360/00; G09G2360/18; G09G5/003; G09G5/02; G09G5/022
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
182 words
A graphic display arrangement for overlapping images; comprising in combination: a display screen divided into a matrix of display elements (pixels), during normal operation each of said display elements utilized to display the image having a first illumination state, all other display elements having a background illumination state, 4 GB 2 141 908 A 4 an addressable multiple storage location digital memory with each of said display elements being associated with a unique storage location, said memory being adapted for storing with a digital word at a location having a first value specifying that the associated display element will have said background illumination state and a second value specifying that the associated display element have said first illumination state, first control circuitry for selectively reading data from said addressable multiple storage location digital memory to generate a raster scan display video signal; coupling circuitry for coupling said video signal to said display screens to display a selected image; second control circuitry for selectively changing the binary value of digital words stored in said digital memory to relocate selected portions of said image.
Claim 2
Dependent Claim
182 words
A graphic display arrangement for overlapping images; comprising in combination: a display screen divided into a matrix of display elements (pixels), during normal operation each of said display elements utilized to display the image having a first illumination state, all other display elements having a background illumination state, 4 GB 2 141 908 A 4 an addressable multiple storage location digital memory with each of said display elements being associated with a unique storage location, said memory being adapted for storing with a digital word at a location having a first value specifying that the associated display element will have said background illumination state and a second value specifying that the associated display element have said first illumination state, first control circuitry for selectively reading data from said addressable multiple storage location digital memory to generate a raster scan display video signal; coupling circuitry for coupling said video signal to said display screens to display a selected image; second control circuitry for selectively changing the binary value of digital words stored in said digital memory to relocate selected portions of said image.
Claim 3
Dependent Claim
25 words
An arrangement in accordance with claim 1 wherein to each storage location in said digital memory has the capacity to store a multi-bit digital word.
Claim 4
Dependent Claim
37 words
An arrangement in accordance with claim 2 wherein a digital word having a value of zero stored at a specific location specifies ihat the associated pixel in the final display will have a background illumination state. '
Claim 5
Dependent Claim
79 words
An arrangement in accordance with claim 2 or 3 wherein a digital word having a non-zero value stored at a location in said digital memory specifies that the associated pixel in the final display will be illuminated to display a portion of an image. Printed in the United Kingdom for Her Majesty's Stationery Office, Demand No. 8818935, 111985. Contractor's Code No. 6378. Published by the Patent Office, 25 Southampton Buildings, London, WC2A lAY, from which copies may be obtained.
References Cited (Backward Citations)
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