Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Reexamination Certificate
2008-07-22
2008-07-22
Mai, Tan V (Department: 2193)
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
Reexamination Certificate
active
10856024
ABSTRACT:
A method for designing an interpolation filter begins by partitioning interpolation filtering into a plurality of interpolation filtering stages that are cascaded together. Each of the plurality of interpolation filtering stages includes an up sampling stage and a filtering stage. The method continues by manipulating a first one of the interpolation filtering stages based on a first digital signal processing identity to produce a first equivalent interpolation filtering stage. The method continues by manipulating a second one of the interpolation filtering stages based on the first digital signal processing identity to produce a second equivalent interpolation filtering stage. The method continues by simplifying the first and second equivalent interpolation filtering stages to produce at least a simplified portion of the interpolation filter.
REFERENCES:
patent: 4270026 (1981-05-01), Shenoi et al.
patent: 5574572 (1996-11-01), Malinowski et al.
patent: 5717617 (1998-02-01), Chester
patent: 2002/0116427 (2002-08-01), Jiang et al.
Broadcom Corporation
Garlick & Harrison & Markison
Mai Tan V
Markison Timothy W.
Smith Kevin L.
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