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:
Feb. 05, 2002
Filed:
Nov. 02, 2000
Applicant:
Inventors:
Masahiko Katada, Hyogo, JP;
Yoshinori Nagai, Hyogo, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 ; G11B 2/104 ; G11B 1/546 ;
U.S. Cl.
CPC ...
G11B 5/09 ; G11B 2/104 ; G11B 1/546 ;
Abstract
A magnetic tape unit includes a magnetic tape, a magnetic head, a phase-locked loop (PLL) and a desynchronized track detector. The magnetic tape is provided with a plurality of tracks. The magnetic head is arranged to simultaneously read out data from the tracks on the tape. The PLL is arranged to perform bit synchronization of data read out from each of the tracks on the tape. The detector is arranged to detect a desynchronized track by comparing transmission speeds of data read out from the respective tracks on the tape.