Filtering integrated circuit

Details Filtering integrated circuit Filtering integrated circuit

2011-04-05

2011-04-05

Ngo, Chuong D (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S320000

Reexamination Certificate

active

07921147

ABSTRACT:
A filtering integrated circuit comprises: a storing circuit; a filter coefficient calculating unit configured to receive frequency information that identifies a characteristic frequency of an output signal in a filtering process, and to set filter coefficients calculated based on the frequency information in the storing circuit; and a filtering unit configured to output the output signal after applying a filtering process to an inputted signal based on the filter coefficients set in the storing circuit.

REFERENCES:
patent: 4467440 (1984-08-01), Sano et al.
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patent: 5355329 (1994-10-01), Lyon
patent: 5530660 (1996-06-01), Sun et al.
patent: 6446103 (2002-09-01), Schollhorn
patent: 6581080 (2003-06-01), Richards
patent: 7565389 (2009-07-01), Runze
patent: 2002-058153 (2002-02-01), None
patent: 2000-0020491 (2000-04-01), None
Korean Intellectual Property Office, Office Action for Application No. 10-2007-70039. Mail date of Aug. 26, 2008.

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