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.:

US 8873184 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 28, 2014

Filed:

Jun. 21, 2012
Applicant:

Junichi Sato, Kawasaki, JP;

Inventor:

Junichi Sato, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/008 (2006.01); G11B 20/10 (2006.01); G11B 15/02 (2006.01); G11B 23/04 (2006.01); G11B 15/68 (2006.01);
U.S. Cl.
CPC ...
G11B 20/10 (2013.01); G11B 2020/10981 (2013.01); G11B 2220/90 (2013.01); G11B 15/02 (2013.01); G11B 23/042 (2013.01); G11B 2220/60 (2013.01); G11B 2220/45 (2013.01); G11B 15/689 (2013.01);
Abstract

A tape drive device for storing data in a tape cartridge includes a comparison unit that compares a transfer speed of the data transmitted from a host machine to the tape drive device with a speed threshold, a speed determination unit that determines a writing speed to a tape cartridge using the speed threshold, and a data write unit that writes data to the tape cartridge, the data write unit writing data to the magnetic tape provided for the tape cartridge when the determined writing speed is higher than the speed threshold, and the data write unit writing subsequent data following data written to the magnetic tape to the non-volatile semiconductor memory provided for the tape cartridge when the determined writing speed is lower than the speed threshold.


Find Patent Forward Citations

Sato, Junichi. (2014). Tape drive device, tape library device, and data storing method (U.S. Patent No. 8873184). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8873184

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