Filter circuit with switchable finite impulse response and infin

Details Filter circuit with switchable finite impulse response and infin Filter circuit with switchable finite impulse response and infin

1993-11-18

1995-02-07

Mai, Tan V.

Boots, shoes, and leggings

36472413, 364825, G06F 1531, G06G 702

Patent

active

053880633

ABSTRACT:
A filter which can operate as a digital filter of the finite impulse response type or the infinite impulse response type using one circuit. The signal to be filtered is multiplied and added using a first calculation circuit and a second calculation circuit. The outputs of the calculation circuits are added using addition circuits. Either the output of the addition circuit or the input of the first calculation circuit is applied by a switching element to the first calculation circuit.

REFERENCES:
patent: 4422156 (1983-12-01), Sano
patent: 4495591 (1985-01-01), Loomis, Jr.
Jackson et al., "An Approach to the Implementation of Digital Filters", IEEE Trans. on Audio and Electroacoustics, Sep. 1968, pp. 413-420.
Massara, "Synthesis of Low-Pass Forms", The Electrical Engineering Handbook, Apr. 3, 1993, pp. 674-691.

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