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:
Mar. 06, 2012
Filed:
Dec. 06, 2007
Ryoheita Hattori, San Jose, CA (US);
David H. Jen, San Jose, CA (US);
Bernd Lamberts, Cupertino, CA (US);
Remmelt Pit, Palo Alto, CA (US);
Kris Schouterden, San Jose, CA (US);
Ryoheita Hattori, San Jose, CA (US);
David H. Jen, San Jose, CA (US);
Bernd Lamberts, Cupertino, CA (US);
Remmelt Pit, Palo Alto, CA (US);
Kris Schouterden, San Jose, CA (US);
Hitachi Global Storage Technologies, Netherlands B.V., Amsterdam, NL;
Abstract
A data formatting system and method to improve data efficiency and integrity in a hard disk are disclosed. One embodiment provides a disk drive system having a plurality of lookup tables which store a plurality of randomizer seeds which may be dynamically encoded into the preamble field of a customer data block if the customer data is deemed marginal. Encoding the randomizer seed into the preamble field prevents adjacent data track mis-writes and mis-reads.