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. 24, 2008
Filed:
Aug. 28, 2006
Matthew P. Dugas, St. Paul, MN (US);
Theodore A. Schwarz, St. Paul, MN (US);
Gregory L. Wagner, Arden Hills, MN (US);
Matthew P. Dugas, St. Paul, MN (US);
Theodore A. Schwarz, St. Paul, MN (US);
Gregory L. Wagner, Arden Hills, MN (US);
Advanced Research Corporation, White Bear, MN (US);
Abstract
Methods and systems for data recording and reading for increasing overall tape data storage density, especially for data written in azimuth style. The principles of the invention provide servo formats and systems that allow accurate on track guidance for higher density applications and that are less sensitive to off track error. Preferred embodiments of the invention offer servo formats and systems of the invention that allows positive track and group identification at the beginning, end, and optionally periodically along the length of a tape.