Enhanced adaptive filtering technique

Details Enhanced adaptive filtering technique Enhanced adaptive filtering technique

1996-12-20

1999-08-03

Moise, Emmanuel L.

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

708303, 708404, 395562, 39580042, G06F 1710, G06F 1500

Patent

active

059318929

ABSTRACT:
A signal represented as a matrix of input values is adaptively filtered using a processor with a multimedia extension unit. A plurality of coefficients are loaded into a first vector register and input values are loaded into a second vector register. Next, for each of the coefficients in the first vector register, (1) a single cycle vector multiply-accumulate operation is performed between the selected coefficient and the input values stored in the second vector register and the result is stored in a third register; (2) a partition-shift on input values in the second vector register is then performed and a new input value is then moved into the second vector register. After each of the four loaded coefficients have been processed, the results are saved and the operation is repeated until all input values in the matrix have been processed.

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