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:
Sep. 15, 2009
Filed:
Aug. 05, 2005
Shaohua Yang, San Jose, CA (US);
Mario Blaum, San Jose, CA (US);
Richard Leo Galbraith, Rochester, MN (US);
Ksenija Lakovic, San Jose, CA (US);
Yuan Xing Lee, San Jose, CA (US);
Travis Oenning, Rochester, MN (US);
Jongseung Park, Rochester, MN (US);
Hideki Sawaguchi, Sunnyvale, CA (US);
Shaohua Yang, San Jose, CA (US);
Mario Blaum, San Jose, CA (US);
Richard Leo Galbraith, Rochester, MN (US);
Ksenija Lakovic, San Jose, CA (US);
Yuan Xing Lee, San Jose, CA (US);
Travis Oenning, Rochester, MN (US);
Jongseung Park, Rochester, MN (US);
Hideki Sawaguchi, Sunnyvale, CA (US);
Hitachi Global Storage Technologies Netherlands, B.V., Amsterdam, NL;
Abstract
An error correction encoder inserts redundant parity information into a data stream to improve system reliability. The encoder can generate the redundant parity information using a composite code. Dummy bits are inserted into the data stream in locations reserved for parity information generated by subsequent encoding. The error correction code can have a uniform or a non-uniform span. The span corresponds to consecutive channel bits that are within a single block of a smaller parity code that is used to form a composite code. The span lengths can be variant across the whole codeword by inserting dummy bits in less than all of the spans.