Static information storage and retrieval – Magnetic bubbles – Guide structure
Patent
1993-06-14
1994-09-06
Shaw, Dale M.
Static information storage and retrieval
Magnetic bubbles
Guide structure
36518901, G06F 1562
Patent
active
053455550
ABSTRACT:
An electronic data storage memory performs logic operations on the data values existing in its storage cells to eliminate the number of necessary memory accesses during bitblts. The time in which a bitblt can be completed in an image processing system is prolonged because of the number of memory cycles performed during a "raster operation". Thus, to reduce the number of necessary memory cycles, simple logic operations are performed in image processor memory so that a raster operation may take place without having to read, for example, the destination operand from memory. Since a bitblt performs a raster operation on each pixel in the bitblt block, the reduction in memory access time is proportional to the size of the bitblt block.
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Boekelheide Lee
Providenza John R.
Network Computing Devices, Inc.
Shaw Dale M.
Tung Kee M.
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