US PATENT SUBCLASS 345 / 509
.~ Bit map or graphic memory

Current as of: June, 1999
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345 /   HD   COMPUTER GRAPHICS PROCESSING, OPERATOR INTERFACE PROCESSING, AND SELECTIVE VISUAL DISPLAY SYSTEMS

507  DF  DISPLAY STORAGE DEVICE {13}
509.~ Bit map or graphic memory {2}
515  DF  .~.~> Addressing
191  DF  .~.~> Mask data operation

DEFINITION

Classification: 345/509

Bit map or s:graphic memory:

(under subclass 507) Subject matter wherein the store means retains on or off (0 or 1) bits to represent one-to-one correspondence between the stored image data and the pixel data of a displayed image data.