Non-recursive digital filter with reduced output sampling freque

Details Non-recursive digital filter with reduced output sampling freque Non-recursive digital filter with reduced output sampling freque

1977-02-10

1980-05-20

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

Time domain filters

307221C, 333173, H03H 728, H03K 5156, G11C 1900, G11C 2100

Patent

active

042041775

ABSTRACT:
Non-recursive digital filters having an output sampling frequency which is a factor of r lower than the input sampling frequency. A number of filters are described in which for each value of r and N (N being the number of filter coefficients) the time which is required to calculate an output sample is based on the output sampling period T.sub.u. This is achieved by using a storage device in the input circuit.

REFERENCES:
patent: 3234545 (1966-02-01), James et al.
patent: 3599108 (1971-08-01), Gardner
patent: 3613030 (1971-10-01), Fjalibrant
patent: 3622916 (1971-12-01), Fjalibrant
patent: 3904965 (1975-09-01), Leuthold

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