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:
Apr. 17, 2001
Filed:
Feb. 18, 2000
Philip A. DesJardins, Nevada City, CA (US);
Ravi G. Mantri, Grass Valley, CA (US);
3Com Corporation, Santa Clara, CA (US);
Abstract
A method and device for calculating syndromes used in forward-error-correction codes. To calculate syndromes more quickly using a computer with memory access latency, the polynomial equation C(X) is divided by a generator polynomial G(X) to form a remainder polynomial R(X). The remainder polynomial R(X) is then used to speed the calculation of the syndromes. A method of dividing a Nth order dividend polynomial by a 2R order divisor polynomial is also described. In addition, to further speed the calculation of syndromes, the generating polynomial is split into a number of sub-polynomials G,(X) to yield a number of remainder sub-polynomials R,(X) used to calculate the syndromes. Calculation of syndromes using evaluation by Horner's rule and a generalization thereof is also described.