Video interlace system for multibeam raster output scanner

Details Video interlace system for multibeam raster output scanner Video interlace system for multibeam raster output scanner

1994-12-15

1998-06-09

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358468, 358480, 358481, 358296, 358300, 358404, 395115, 395116, H04N 140, H04N 132, H04N 104, H04N 123

Patent

active

057643776

ABSTRACT:
A raster output scanner data controller reads pixels of an image from an image memory and outputs serially pixel data streams to a raster output scanner. The data controller includes an image memory storing a plurality of pixel data blocks in a scan line order, an image memory controller coupled to the image memory, a plurality of first-in, first-out memories coupled to the image memory controller for storing pixel data blocks corresponding to a plurality of beams, and an image controller coupled to the plurality of first-in, first-out memories. The pixel data blocks are transferred from the image memory to the plurality of first-in, first-out memories. The image controller reads the pixel data blocks from the plurality of first-in, first-out memories, converts the pixel data blocks read from the plurality of first-in, first-out memories into a plurality of pixel data streams and outputs the plurality of pixel data streams to the raster output scanner.

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