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:
Dec. 03, 2013
Filed:
Apr. 30, 2008
Richard Leo Galbraith, Rochester, MN (US);
Weldon Mark Hanson, Rochester, MN (US);
Travis Roger Oenning, Rochester, MN (US);
Todd Carter Truax, Rochester, MN (US);
Richard Leo Galbraith, Rochester, MN (US);
Weldon Mark Hanson, Rochester, MN (US);
Travis Roger Oenning, Rochester, MN (US);
Todd Carter Truax, Rochester, MN (US);
HGST Netherlands B.V., Amsterdam, NL;
Abstract
Embodiments of the present invention relate to the detection of synchronization marks in data storage and retrieval. According to one embodiment, synchronization marks are detected from the output of a matched filter, upstream of the Viterbi detector. This approach avoids the delay associated with the latency of the Viterbi output, thereby allowing time to align parity framing and to properly start the time-varying trellis. Certain embodiments disclose 34- and 20-bit primary synchronization marks located at the beginning of a data region. Other embodiments disclose 16-, 20-, and 24-bit embedded synchronization marks located within a data region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile