Digital filter device

Details Digital filter device Digital filter device

2003-08-22

2008-12-16

Do, Chat C (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

07467171

ABSTRACT:
In a digital filter device which filters a plurality of signals by a single digital filter, an input data memory stores the input data strings generated by computing processors, and a digital filter reads the input data strings in a predetermined sequence to be filtered and generates output data strings. An output data memory stores the output data strings, and a data processor reads the output data strings in a predetermined sequence to be processed. Furthermore, a filter memory and coefficient memories respectively store data-under-calculation and a filter coefficient in a delay circuit included in the digital filter.

REFERENCES:
patent: 4805129 (1989-02-01), David
patent: 4939684 (1990-07-01), Gehrig et al.
patent: 5262972 (1993-11-01), Holden et al.
patent: 5311459 (1994-05-01), D'Luna et al.
patent: 5586068 (1996-12-01), Rakib
patent: 5898731 (1999-04-01), Kwak
patent: 6018755 (2000-01-01), Gonikberg et al.
patent: 6510444 (2003-01-01), Mackre et al.
patent: 63-132517 (1988-06-01), None
patent: 2-121513 (1990-05-01), None
Notification of Reason(s) for Refusal dated Sep. 9, 2008, from the corresponding Japanese Application.

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