Multipurpose adaptive filter

Details Multipurpose adaptive filter Multipurpose adaptive filter

1986-04-02

1989-05-23

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 1531

Patent

active

048336343

ABSTRACT:
This rate dependent filter has a two-portion continuous filter function which optimizes noise filtering and minimizes detrimental lag or degradation characteristics. A first portion of the filter provides high filtering for low signal inputs below a first signal value. A second portion of the filter provides for a monotonically changing filter characteristic above the first signal values. The filter is especially useful in non-continuous transmissions, as radio, telephone, musical or other acoustical communication. It may also readily be applied to digital data transmission.

REFERENCES:
patent: 4636863 (1987-01-01), Kaizaki et al.
patent: 4646153 (1987-02-01), Fukuda et al.
patent: 4674062 (1987-06-01), Premerlani
Jazwinski, "Adaptive Filtering", Automatica, vol. 5, pp. 475-485, 1969.
Glaser, "Signal-Detection by Adaptive Filters;" IRE Trans. on Information Theory, Apr. 1961, pp. 87-98.
Ahuja et al, "Variable Digital Filters," IEEE Trans. on Circuits and Systems, vol. CAS 27, #9, Sep. 1980 336-338.

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