Apparatus and method for optimal implementation of the...

Details Apparatus and method for optimal implementation of the... Apparatus and method for optimal implementation of the...

2011-01-11

2011-01-11

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

07870179

ABSTRACT:
A Coordinate Rotation Digital Computer (CORDIC) circuit capable of performing precise vector rotation, including a pre-rotation stage configured to selectively rotate an input vector by ±90 degrees and to produce a pre-rotated vector. A first stage is configured to perform a first set of iterative CORDIC calculations on the pre-rotated vector and to produce a first rotated vector and a remaining rotation value. A second stage configured to perform a second set of iterative CORDIC calculations on the first rotated vector and to produce a second rotated vector, the second rotated vector corresponding to the input vector.

REFERENCES:
patent: 2006/0093070 (2006-05-01), Ibrahim et al.

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