Graphics decoder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 5, 1993
Grant Date -
N/A
app pub date -
Jun 24, 1992
filing date -
Oct 16, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A graphics decoder which stores color number data of each pixel of the display screen, which is acquired from a subcode signal, sequentially reads out the color number data to produce a graphics RGB signal referring to a color look-up table, and supplies the graphics RGB signal to a CRT display. When a graphics command acquired from the subcode signal is a screen-scroll command, scroll data is obtained from pointer data included in that scroll command, and that scroll data is output at a timing synchronous with a horizontal sync signal or vertical sync signal to set the read address of the display memory. When the graphics command is a color look-up table write command, the color look-up table is updated at a timing synchronous with the first horizontal sync signal or vertical sync signal after the generation of that write command.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 38 Citation Count
- G09G Class
- 50 % this patent is cited more than
- 32 Age