Logarithmic data compression

Details Logarithmic data compression Logarithmic data compression

1982-02-02

1988-05-31

Heckler, Thomas M.

Boots, shoes, and leggings

G06F 102

Patent

active

047485779

ABSTRACT:
Improved logarithmic data compression is achieved by means of a method of finding a more efficient base and a more efficient memory structure. Data compression from a P-bit input word to a Q-bit output word is performed using an optimal base which produces a number of rounded logarithm values equal to 2.sup.Q when applied to all of the possible input values. These logarithm values are coded using the available output values to produce a logarithm look-up table. The look-up table is implemented using a multi-stage memory structure which reduces the number of memory devices required for a given table.

REFERENCES:
patent: 4199677 (1980-04-01), Vanderpool
patent: 4263650 (1981-04-01), Bennett et al.

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