System for sequentially shifting bits from the next one of the m

Details System for sequentially shifting bits from the next one of the m System for sequentially shifting bits from the next one of the m

1996-06-14

1998-10-27

Lee, Thomas C.

Coded data generation or conversion

Digital code to digital code converters

Tree structure

341 67, 341101, G06F 300

Patent

active

058289062

ABSTRACT:
A parallel input/serial output device for inputting code bits in parallel and outputting the same in serial in a variable-length encoder divides a bit word into one with a sign bit and without a sign bit in a table for a variable-length encoder, sequentially stores the absolute values in the table in case of the bit word with a sign bit, sequentially stores the remaining bits with the most significant bit being stored finally in case of those with a sign bit, sequentially outputs bits from the next one of the most significant bit in serial and outputs the most significant bit as the last bit if the counted value becomes one. Therefore, the size of an internal conversion table can be decreased to a half, thereby reducing the number of used elements. Accordingly, the size of an address decoder can be reduced to a half and the operational speed can be improved.

REFERENCES:
patent: 3765013 (1973-10-01), Leibowitz
patent: 5166684 (1992-11-01), Juri et al.
patent: 5307061 (1994-04-01), Suzuki
patent: 5436626 (1995-07-01), Fujiwara et al.
patent: 5654707 (1997-08-01), Matsumoto
patent: 5682156 (1997-10-01), Suda

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