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. 19, 2021
Filed:
Jun. 23, 2020
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventor:
Ishai Ilani, Dolev, IL;
Assignee:
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 13/11 (2006.01); H03M 13/00 (2006.01); H03M 13/29 (2006.01); H03M 13/15 (2006.01);
U.S. Cl.
CPC ...
H03M 13/1174 (2013.01); H03M 13/1168 (2013.01); H03M 13/15 (2013.01); H03M 13/2903 (2013.01); H03M 13/616 (2013.01);
Abstract
A data storage device has a controller that is configured to generate SECDED codes based on a plurality (at least 2) of codes, where each of the constituent codes is a cyclic code over a finite field of size 2for some integer m. Any 2 constituent codes are associated with 2and 2, where m1 and m2 are coprime (i.e., gcd(m1,m2)=1) where gcd is the greatest common divisor. In such a case, it is possible to generate a cyclic code of length (2−1)*(2−1), which will be a long code, but enjoy the complexity, in encoding and decoding, of the small fields of the constituent codes.