Digital multirate filtering

Details Digital multirate filtering Digital multirate filtering

2008-01-22

2008-01-22

Ngo, Chuong D (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S714000

Reexamination Certificate

active

07321913

ABSTRACT:
A method of determining filter coefficients for filter stages in a multirate digital filter device to achieve a desired filter response. The method includes the step of determining a first plurality of evenly spaced sample points representing the desired response function on a logarithmic time scale, such that the sample points of the first plurality have an increasing spacing when viewed in a linear time scale. The method further includes the step determining filter coefficients for each filter stage from an associated group of sample points out of the first plurality of sample points.

REFERENCES:
patent: 5272656 (1993-12-01), Genereux
patent: 5732002 (1998-03-01), Lee et al.
patent: 6680972 (2004-01-01), Liljeryd et al.
D.B. Keele, Jr. “Log Sampling in Time and Frequency: Preliminary Theory and Application.” Proceedings of the 97th Convention of the Audio Engineering Society (Nov. 10-13, 1994). San Francisco, CA.
Pseudoinverse, from Wikipedia, available at en.wikipedia.org/wiki/Pseudo—inverse retrieved on Aug. 22, 2007.
Weisstein, Eric W. “Moore-Penrose Matrix Inverse.” From MathWorld—A Wolfram Web Resource, available at mathworld.wolfram.com/Moore-PenroseMatrixInverse.html retrieved on Aug. 22, 2007, 2007.

Affiliated with

Also associated with

Rating

Digital multirate filtering does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital multirate filtering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital multirate filtering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2814884