Method of designing polynomials for controlling the slewing...

Details Method of designing polynomials for controlling the slewing... Method of designing polynomials for controlling the slewing...

2006-01-17

2006-01-17

Mai, Tan V. (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S322000

Reexamination Certificate

active

06988116

ABSTRACT:
A method for deriving a polynomial for generating filter coefficients to be used in a digital filter in an electronic unit having a digital signal processor. The digital filter has a plurality of reconfigurable filter sections to achieve a desired bandwidth characteristic between a first characteristic with a first cutoff frequency and a second characteristic with a second cutoff frequency. A first set of filter coefficients is determined for providing the first characteristic. A second set of filter coefficients is determined for providing the second characteristic. A third set of filter coefficients is determined for providing a third characteristic having a third cutoff frequency between the first and second cutoff frequencies. A polynomial is determined having solutions substantially matching the first, second, and third sets of filter coefficients with respect to an index varying from a first index value to a second index value corresponding to the first cutoff frequency and the second cutoff frequency, respectively.

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patent: 5646569 (1997-07-01), Bruhns et al.
patent: 5856934 (1999-01-01), Nakajima et al.
patent: 6154547 (2000-11-01), Whitecar
patent: 2003/0102991 (2003-06-01), Pasquier
patent: 1313219 (2003-05-01), None

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