Display system with line smoothing using pixel micro-zones and computation cells allowing a reduced number of accesses to image memory with simplified addressing
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United States of America Patent
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Oct 10, 2000
Grant Date -
N/A
app pub date -
Dec 19, 1996
filing date -
Dec 21, 1995
priority date (Note) -
Expired
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Abstract
A method and system for generating symbols in real time on a display screen. The method and system can be applied to generating symbols for assisting in aircraft piloting and navigation. For the plotted lines generated on a matrix screen such as a liquid crystal display screen, the visual appearance deteriorates since the eye is sensitive to the steps produced by the matrix array. To improve the appearance, the plotted lines are widened and they are modulated in luminosity and in color. This is done by replacing each point of a theoretical plotted line by a micro-zone of N.times.M points modulated in intensity according to a table of instructed-value coefficients. Coefficients are computed for each point of the widened plotted line on the basis of this table and on the basis of coefficients previously computed for the same points. Rather than recording the computed points in the memory at each time and reading them again in subsequent computations, only the definitively processed points are transmitted to the image memory.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
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- SEXTANT AVIONIQUE
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Auger, Dominique | Le Haillan, FR | 1 | 0 |
Montestrucq, Louis | Saint Cloud, FR | 1 | 0 |
Pernia, Olivier | Lormont, FR | 2 | 4 |
Urquia, Miguel | Saint Jean d'Illac, FR | 1 | 0 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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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