Gain control in post filtering process using scaling

Details Gain control in post filtering process using scaling Gain control in post filtering process using scaling

1997-05-21

2000-06-06

Le, Amanda T.

Pulse or digital communications

Receivers

Automatic gain control

375349, 375350, 704225, 4552351, G10L10112

Patent

active

060728442

ABSTRACT:
A second post filter having characteristics similar to those of a first post filter used in the signal path is prepared and a gain of the first post filter is preliminarily presumed from an input and an output of the second post filter. An optimum scaling value when performing a filtering operation in the first post filter is set by using the gain obtained from the input and output of the second post filter, so that an optimum gain when controlling a gain fluctuation caused by the first post filter is set.

REFERENCES:
patent: 5752222 (1998-05-01), Nishiguchi et al.

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