Circuit for controlling tap gains at rapid speed in an adaptive

Details Circuit for controlling tap gains at rapid speed in an adaptive Circuit for controlling tap gains at rapid speed in an adaptive

1991-03-15

1993-06-08

Nguyen, Long T.

Boots, shoes, and leggings

G06F 1531

Patent

active

052185605

ABSTRACT:
In a tap control circuit for use in an adaptive filter for filtering a received signal into a filtered signal in accordance with first through N-th controllable tap gains which are produced by a producing section dependent upon the filtered signal and a control parameter, where N represents a positive integer which is not less than one, a first generating section is for generating a first parameter and a second generating section, for generating a second parameter which is greater than the first parameter. A selecting section selects one of the first and the second generating sections to selectively supply the first and the second parameters as the control parameter to the producing section in accordance with the first through the N-th controllable tap gains. Preferably, the tap control circuit has a controlling unit for controlling the producing section to select selected ones of the first through the N-th controllable tap gains in accordance with the first through the N-th controllable tap gains. As soon as the adaptive filter is put into operation, the selecting section selects the first generating section to supply the first parameter to the producing section. When the selecting section selects the second generating section to supply the second parameter to the producing section, the controlling unit is put into operation and selects the selected ones of the first through the N-th controllable tap gains.

REFERENCES:
patent: 4843583 (1989-06-01), White et al.

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