Data driven type digital filter unit and data driven type inform

Details Data driven type digital filter unit and data driven type inform Data driven type digital filter unit and data driven type inform

1995-04-03

1997-06-03

Ngo, Chuong D.

Boots, shoes, and leggings

36472417, G06F 1710

Patent

active

056361505

ABSTRACT:
A data driven filter unit includes a register file including a plurality of registers, a first computing element group including a multiplier, a second computing element group including an add/shift composite computing element, an input part for writing externally received data in a register, specified by a program, in the register file, and an output part for outputting register data, specified by a program, in the register file to the exterior of the unit. The register file includes a plurality of registers, and a single entry corresponds to a single fir or iir instruction. The register file stores external data, data being processed, a constant and an initial value. This register file executes reading and writing along a rule of single substitution/single readout. This program is read from a program memory provided in the filter unit, so that required data is stored in the register file. Connection between the register file and a computing element is decided by the program. This filter unit is especially suited for use combination with a data driven type information processor, achieving easy and high speed implementation of filters having arbitrary structure.

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