Digital filter and data processing method thereof

Details Digital filter and data processing method thereof Digital filter and data processing method thereof

2005-05-03

2005-05-03

Mai, Tan V. (Department: 2124)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S319000, C708S316000

Reexamination Certificate

active

06889239

ABSTRACT:
Data other than inserted “0”s are selected by first selectors from among a plurality of data included in input data to which zero value interpolation is carried out at an interpolation circuit. Besides, coefficients by which the data selected by the first selectors should be multiplied are selected by second selectors. The data selected by the first selectors are multiplied by the coefficients selected by second selectors in multiplication circuits. Then, an adding circuit adds all of the multiplied results and outputs the added result as the desired filter characteristic.

REFERENCES:
patent: 4660216 (1987-04-01), Claasen et al.
patent: 5050119 (1991-09-01), Lish
patent: 6032171 (2000-02-01), Kiriaki et al.
patent: 6035312 (2000-03-01), Hasegawa
patent: 6058407 (2000-05-01), Kim
patent: 6377968 (2002-04-01), Nakase et al.

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