Digital Signal Processor With One Or More Non-Linear Functions Using Factorized Polynomial Interpolation
AssigneeIntel Corporation
InventorsKameran Azadet, Jian-Guo Chen, Samer Hijazi, Joseph Williams
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Abstract
A digital signal processor and method are disclosed with one or more non-linear functions using factorized polynomial interpolation. A digital signal processor evaluates a non-linear function for a value, x, by obtaining two or more values from at least one look-up table for said non-linear function that are near said value, x; and interpolating said two or more obtained values to obtain a value, y, using a factorized polynomial interpolation.
Claims9
A method performed by a digital signal processor for evaluating a non-linear function for a value, x, comprising:
- obtaining at least two values from at least one look-up table for said non-linear function that are near said value, x;
- and
- interpolating said at least two obtained values to obtain a value, y, using a factorized polynomial interpolation.
A digital signal processor, comprising:
- at least one look-up table that stores a subset of values for a non-linear function;
- and
- an interpolator that interpolates at least two values obtained from said at least one look-up table to obtain a result using a factorized polynomial interpolation.
An integrated circuit, comprising:
- a digital signal processor, comprising:
- at least one look-up table that stores a subset of values for a non-linear function;
- and
- an interpolator that interpolates at least two values obtained from said at least one look-up table to obtain a result using a factorized polynomial interpolation.
Dependencies are inferred from the claim text.