Using long distance filters in the presence of round-off errors

Details Using long distance filters in the presence of round-off errors Using long distance filters in the presence of round-off errors

1989-07-14

1992-07-07

Shaw, Dale M.

Boots, shoes, and leggings

G06F 738, G06F 1531

Patent

active

051288869

ABSTRACT:
The present invention provides a method of using long digital filters in the presence of round-off errors by prescaling each filter coefficient by a scaling factor. The prescaled coefficients are used to weight input data samples. The resulting weighted data values are then divided by the appropriate scaling factor and combined to produce an output data sample.

REFERENCES:
patent: 4305133 (1981-12-01), Amada et al.
patent: 4615026 (1986-09-01), Schiff
patent: 4691293 (1987-09-01), Conboy
patent: 4862403 (1989-08-01), Iwase et al.

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