System for electronically displaying portions of several different images on a CRT screen through respective prioritized viewports
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United States of America Patent
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Sep 17, 1985
Grant Date -
N/A
app pub date -
Nov 3, 1983
filing date -
Nov 3, 1983
priority date (Note) -
Expired
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Abstract
A system for electronically displaying portions of several different images on a CRT screen comprises: a memory for storing a complete first image as several pixels in one section of the memory and a complete second image as several other pixels in another section of the memory such that the total number of stored pixels is substantially larger than the number of pixels on the screen; a logic circuit for reading a sequence of the pixels at non-contiguous locations in the first and second images and for transferring them, in the sequence in which they are read, to the screen for display with no frame buffer therebetween; the logic circuit for reading including a module for forming non-contiguous addresses for the pixels in the sequence in which they are read with the address of one word of pixels being formed during the time interval that a previously addressed word of pixels is being displayed on the screen.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- BURROUGHS CORPORATION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bass, Leland J | San Diego, CA | 3 | 256 |
Quick, Jr Roy F | San Diego, CA | 14 | 854 |
Shah, Ashwin V | Encinitas, CA | 3 | 256 |
Wickwire, Ralph O | San Diego, CA | 5 | 282 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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