Data processing system with reduced look-up table for a function

Details Data processing system with reduced look-up table for a function Data processing system with reduced look-up table for a function

1997-05-19

1999-04-20

Chan, Eddie P.

Electrical computers and digital processing systems: memory

Address formation

Address mapping

711202, 711205, 711207, 360 7807, G06F 1210

Patent

active

058955003

ABSTRACT:
A data processing system with a look-up table means for implementing a transfer function with non-uniform resolution comprises a memory to store a plurality of function data; an input to receive external address words for operating on the memory; and an output to provide the function data. The look-up table means comprises a converging means between the input and the memory for mapping specific ones of the external address words onto a specific one of internal address words to access the memory. This greatly reduces memory size. If the transfer function has a symmetry property, a symmetry-handling means further reduces the memory size.

REFERENCES:
patent: 4486797 (1984-12-01), Workman
patent: 5123101 (1992-06-01), Sindhu
patent: 5313611 (1994-05-01), Franklin et al.

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