Excavating
Patent
1992-11-10
1995-06-27
Envall, Jr., Roy N.
Excavating
371 391, G06F 1110
Patent
active
054286271
ABSTRACT:
A method and apparatus for converting input symbols of a fixed length, to output symbols of a greater fixed length. Input symbols are received one at a time and are clocked into the staging register. When a new input symbol is loaded into the staging register, the contents of the first stage are moved to a second stage of the staging register. The new input symbol is loaded into the cells of the first stage. Multiplexers select the contents of cells of the staging register to form the output symbol. A modulo-x counter counts the incoming input symbols. The output of the counter determines which cells the multiplexer selects. Initially, the first stage of the staging register is preloaded with a predetermined pad symbol, and the modulo-x counter is preset. The first output symbol consists of a number of bits from the pad symbol and those bits of the first input symbol needed to complete the first output symbol.
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Envall Jr. Roy N.
Oakes Brian C.
QLogic Corporation
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