Pipelined vectoring-mode CORDIC

Patent metadata

Field	Value
Publication number	US-9047148-B2
Application number	US-201213525170-A
Country	US
Kind code	B2
Filing date	Jun 15, 2012
Priority date	Jun 15, 2012
Publication date	Jun 2, 2015
Grant date	Jun 2, 2015

Abstract

Various embodiments of the present invention provide pipelined vectoring-mode CORDICS including a coordinate converter operable to yield a converted vector based on an input vector, wherein an x coordinate value of the converted vector is positive, a y coordinate value of the converted vector is positive, and the x coordinate value is greater than or equal to the y coordinate value, a pipeline of vector rotators operable to perform a series of successive rotations of the converted vector to yield a rotated vector and to store rotation directions of the series of successive rotations, and at least one lookup table operable to yield an angle of rotation based on the rotation directions.

First claim

What is claimed is:

1. A coordinate rotation digital computer comprising:
a coordinate converter operable to yield a converted vector based on an input vector, wherein an x coordinate value of the converted vector is positive, a y coordinate value of the converted vector is positive, and the x coordinate value is greater than or equal to the y coordinate value;
a pipeline of vector rotators in an integrated circuit operable to perform a series of successive rotations of the conv…

Assignees

• Li Zhibin
• Zhao Yao
• Lsi Corp

Inventors

• Li Zhibin
• Zhao Yao

Classifications

• G11B5/09

  Physics · mapped topic

• G06F2207/3884

  Physics · mapped topic

• G11B5/5547

  Physics · mapped topic

• G06F7/5446 Primary

  Physics · mapped topic