Title:
FIR DIGITAL FILTER DEVICE
Document Type and Number:
WIPO Patent Application WO/1989/005544
Kind Code:
A1
Abstract:
An FIR digital filter device of the symmetrical coefficient type or the antisymmetrical coefficient type which processes digital data signals such as digital audio signals. In the FIR digital filter device, an input digital data is transferred in the forward direction through a plurality of digital signal processors (F, B) connected in cascade and is then transferred in the reverse direction to form M pieces of delayed digital data. The digital signal processor in each stage effects the algebraic addition of said delayed digital data and the input digital data through a first operation unit (46), effects the multiplication through a multiplier (47), adds up the multiplied result through a second operation unit (37), and transfers the obtained data as carry-over data to the next stage.
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Inventors:
TANAKA YOSHIAKI (JP)
Application Number:
PCT/JP1988/001218
Publication Date:
June 15, 1989
Filing Date:
December 01, 1988
Export Citation:
Assignee:
VICTOR COMPANY OF JAPAN (JP)
International Classes:
G06F17/10; H03H17/02; H03H17/06; (IPC1-7): H03H17/02
Foreign References:
| JPS57208722A | 1982-12-21 | |||
| JPS59220879A | 1984-12-12 | |||
| JPS62131618A | 1987-06-13 | |||
| JPH06291010A | 1994-10-18 |
Other References:
Electronic Design (28 May 1987) DAVE BURSKY (Tuned Architectures Boost DSP Performance) p. 31-36
See also references of EP 0344326A4
See also references of EP 0344326A4
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