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:
Jul. 22, 2014
Filed:
Jun. 24, 2013
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toru Kambayashi, Kanagawa, JP;
Akihiro Kasahara, Chiba, JP;
Shinichi Matsukawa, Tokyo, JP;
Hiroyuki Sakamoto, Tokyo, JP;
Taku Kato, Kanagawa, JP;
Hiroshi Sukegawa, Tokyo, JP;
Yoshihiko Hirose, Kanagawa, JP;
Atsushi Shimbo, Tokyo, JP;
Koichi Fujisaki, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
According to one embodiment, a memory chip, which is connected to a controller that controls reading and writing of data in response to a request from an external device, includes: a memory including a special area that is a predetermined data storage area; a key storage unit that stores therein a second key that corresponds to a first key used by the external device to convert the data; a converting unit that receives, from the controller, data to be written into the special area and generates converted data by converting the data to be written using the second key; and a writing unit that writes the converted data into the special area.