Barrel shifter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6877019
APP PUB NO 20030131029A1
SERIAL NO

10043631

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to a barrel shifter for manipulating bits within computer words. The barrel shifter includes multiple multiplexer stages for rotating single and multiple words. In several embodiments, it provides a half-word alignment in a 2.sup.n -bit barrel shifter, rotates a single 32-bit data word or two 16-bit data words, rotates a 2.sup.n -bit data word or two 2.sup.n-1 -bit data half-words, a method of operating a 2.sup.n -bit barrel shifter to rotate two 2.sup.n-1 -bit data words, multiplexer stages for rotating the bits to the left or right based on control signals, such that the stages do not require 2:1 multiplexers between the first and second stages.

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Patent Owner(s)

Patent OwnerAddress
SYNTEK INTERNATIONAL HOLDING LTDHUNTLAW BUILDING P O BOX 2804 GEORGE TOWN GRAND CAYMAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bandy, James Henry Huntington Beach, CA 1 12
Zhao, Hongliang Irvine, CA 18 34

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