Finite impulse response filter

Details Finite impulse response filter Finite impulse response filter

1996-07-01

1999-10-12

Ngo, Chuong Dinh

Boots, shoes, and leggings

3647241, 36472413, G06F 1710, G06F 1717

Patent

active

059663146

ABSTRACT:
A finite impulse response filter and its filtering method are disclosed including a first delay portion for delaying input data, a second delay portion for receiving a final delay output from the first delay portion and delaying it, a first ROM bank having a plurality of ROMs for storing filter state values, a second ROM bank having a plurality of ROMs for storing filter state values, a first address generator for generating data as a first address, a second address generator for generating data as a second address, a first multiplexer for sequentially multiplexing the filter state values output from the ROMs of the first ROM bank, a second multiplexer for sequentially multiplexing the filter state values output from the ROMs of the second ROM bank, and an adder for summing the outputs of the first and second multiplexers and outputting the result as filter output data.

REFERENCES:
patent: 5027306 (1991-06-01), Dattorro et al.
patent: 5313412 (1994-05-01), Nukui
patent: 5374931 (1994-12-01), Wiener
patent: 5379242 (1995-01-01), Rose et al.
patent: 5381357 (1995-01-01), Wedgwood et al.
patent: 5404322 (1995-04-01), Gehring
patent: 5487084 (1996-01-01), Misaizu et al.

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