Digital filter circuit and signal processing method for the same

Details Digital filter circuit and signal processing method for the same Digital filter circuit and signal processing method for the same

1995-06-06

1997-11-11

Ramirez, Ellis B.

Boots, shoes, and leggings

364553, 36472403, 36472416, 36472417, H03H 1500

Patent

active

056871015

ABSTRACT:
In a digital IIR filter having a predetermined transfer function, a transfer function of an all-pass filter having the same amplitude as a first pole coefficient of the transfer function and the opposite sign is set. By synthesizing the transfer function and the transfer function of the set all-pass filter, a new transfer function, in which the first pole is eliminated, is calculated such that an input signal is processed by the new transfer function.

REFERENCES:
patent: 4698680 (1987-10-01), Lewis, Jr. et al.
patent: 5224170 (1993-06-01), Waite, Jr.
patent: 5331416 (1994-07-01), Patel et al.

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