Patent Number: 8,879,349

Title: Storage device

Abstract: A storage device according to an embodiment includes first and second non-volatile semiconductor memories. In addition, the storage device includes first controller that controls the first non-volatile memory to cause the first non-volatile memory to perform processes. In addition, the storage device includes second controller that controls the second non-volatile memory to cause the second non-volatile memory to perform processes. The storage device further includes a signal line which is connected to the first controller and the second controller and through which a token is transmitted between the first controller and the second controller. The first controller is capable of controlling the first non-volatile memory while holding the token and the second controller is capable of controlling the second non-volatile memory while holding the token.

Inventors: Yoshii; Kenichiro (Tokyo, JP), Magaki; Ikuo (Kanagawa, JP), Oshiyama; Naoto (Tokyo, JP), Hara; Tokumasa (Kanagawa, JP), Yamaga; Akira (Kanagawa, JP), Yamaki; Ryo (Kanagawa, JP), Yasufuku; Kenta (Tokyo, JP), Takeda; Naomi (Kanagawa, JP), Nakanishi; Yu (Kanagawa, JP), Miyamoto; Arata (Tokyo, JP), Kokubun; Naoaki (Kanagawa, JP), Iwai; Daisuke (Kanagawa, JP)

Assignee: Kabushiki Kaisha Toshiba

International Classification: G11C 5/14 (20060101)

Expiration Date: 2019-11-04 0:00:00