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. 19, 2006
Filed:
May. 28, 2003
Yuji Oishi, Nagoya, JP;
Kimitoshi Nakamura, Nagoya, JP;
Megumi Tokunaga, Nagoya, JP;
Kaoru Miyazaki, Nagoya, JP;
Kaihei Ito, Nagoya, JP;
Naoki Fujita, Nagoya, JP;
Yuji Oishi, Nagoya, JP;
Kimitoshi Nakamura, Nagoya, JP;
Megumi Tokunaga, Nagoya, JP;
Kaoru Miyazaki, Nagoya, JP;
Kaihei Ito, Nagoya, JP;
Naoki Fujita, Nagoya, JP;
Hagiwara Sys-Com Co., Ltd., Nagoya, JP;
Abstract
A USB storage device having the function of preventing stored software from being deleted by mistake achieved with as simple a structure as possible. In the USB storage device, the storage area is divided into an area in which execution of reading, writing and deleting is allowed and an area in which only execution of reading is allowed. Information to make a USB mass storage class driver recognize these areas as areas corresponding, respectively, to logical unit numbers defined in the SCSI command set of the USB mass storage class driver owned by the host is stored in the USB storage device. The information includes logical unit numbers, formats, writing/deleting allowed/not allowed flag, logical block numbers and physical block numbers. By this, the USB mass storage class driver recognizes the USB storage device as a SCSI device having two logical units.