Patent ID: 6640237
Filing Date: 2003-10-28
Classification: G06F

Abstract:
A method for determining a trigonometric value for an angle, comprising:receiving an input angle; separating the input angle into a first component angle and a second component angle at an angle separator; establishing one or more trigonometric values of a set of trigonometric values associated with the first component angle and the second component angle, at least one trigonometric value established according to a procedure selected from a group consisting of: comparing the second component angle to a predetermined threshold to determine the at least one trigonometric value; and determine the at least one trigonometric value at a sine beta device; generating one or more intermediate values of a set of intermediate values at one or more multipliers in accordance with the one or more trigonometric values; and determining an output trigonometric value of a set of output trigonometric values at one or more adders in accordance with the one or more intermediate values.