Ordering keys in a table using an ordering mask
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United States of America Patent
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May 28, 2002
Grant Date -
N/A
app pub date -
Dec 9, 1999
filing date -
Dec 9, 1999
priority date (Note) -
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Abstract
The present invention is a mask ordering method and apparatus which controls the way keys are compared. In its general form, the mask ordering method operates to order (with a less than, greater than or equal to comparison) two N-byte (for example, N=16) keys (Key.sub.-- 1 and Key.sub.-- 2) using an N-bit ordering mask where the N bits in the ordering mask correspond one for one with the N bytes in the keys in the same compare direction (either left-to-right or right-to-left).
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