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:
Sep. 08, 1998
Filed:
Oct. 21, 1996
Seigo Kotani, Kawasaki, JP;
Keiichi Murakami, Kawasaki, JP;
Shinichi Yoshimoto, Kawasaki, JP;
Kouichi Kanamoto, Kawasaki, JP;
Tatsuro Masuda, Kawasaki, JP;
Makoto Yoshioka, Kawasaki, JP;
Masao Fujiwara, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The CPU in the processing unit of an external storage device transmits data between an information processing device and a storage medium, determines whether or not the information processing device can access the storage medium of the external storage device, decrypts data encrypted in the storage medium, etc. using a program loaded into RAM through an interface or a read/write unit. Changing the data loaded into the RAM efficiently and flexibly guarantees the security of the data stored on the storage medium.