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:
Jun. 03, 2003
Filed:
Jan. 08, 1999
Peter I. Vasiliev, Cupertino, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
The invention relates to apparatus and method that provide an improved media codeword and which can distinguish an uncorrectable data error from a wrong block address error and permit the address to be recovered from readback data. In accordance with one embodiment of the invention, method for generating parity is provided in which a sequences representing address and data are received. The address sequence is multiplied by a set of multiplier symbols to generate a first sequence of product symbols. A first portion is added to the data sequence prior to generating a first parity sequence and second portion is added directly to the first parity sequence to generate the final parity sequence. A corresponding method of generating syndromes from readback data is provided. System and apparatus incorporating the inventive method are also provided.