The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2009
Filed:
Dec. 20, 2002
Koushik Maharatna, Bristol, GB;
Eckhard Grass, Berlin, DE;
Banerjee Swapna, In-Kharagpur, IN;
Dhar Anindya Sundar, In-Kharagpur, IN;
Koushik Maharatna, Bristol, GB;
Eckhard Grass, Berlin, DE;
Banerjee Swapna, In-Kharagpur, IN;
Dhar Anindya Sundar, In-Kharagpur, IN;
Abstract
A CORDIC unit for the iterative approximation of a vector rotation through a rotary angle θ by a number of elementary rotations through elementary angles α, including elementary rotation stages for respectively affecting an elementary rotation through an elementary angle αas an iteration step in the iterative approximation. After such an elementary rotation there remains a residual angle through which rotation is still to be affected. The elementary rotation stages of the CORDIC unit are adapted for rotation through elementary angles αgiven by powers of two with a negative integral exponent. The CORDIC unit can also include a triggering device for triggering the elementary rotations, a triggering device which is adapted prior to each iteration step to compare the residual angle to at least one of the elementary angles and to omit those elementary rotation stages whose elementary angles are greater than the residual angle.