Kioxia Corporation

Toshiba Memory Corporation

Yuki Kanbe

Naoko Yamada

Mari Hikichi

A memory system is communicable with a plurality of hosts. The memory system includes a nonvolatile memory and a controller electrically connected to the nonvolatile memory. The controller receives an authentication request command from a first host, and transmits a first authentication code when authentication of the first host is successful. The controller receives an access command, which includes a second authentication code, for accessing the nonvolatile memory from a second host. The controller permits an access to the nonvolatile memory in accordance with the access command when the second authentication code matches the first authentication code, and prohibits an access to the nonvolatile memory in accordance with the access command when the second authentication code is different from the first authentication code.

Memory system

A communication system includes a host, and a memory system including a non-volatile memory and a controller configured to execute operations including writing of data to the non-volatile memory based on a request from the host. Information is transmitted by one of the host or the memory system after a predetermined period has elapsed while power is supplied from the host to the non-volatile memory. The information includes a number for identifying either the host or the memory system that transmitted the information and diagnostic information used for determining if there is a risk of loss of data stored in the non-volatile memory.

Receiving terminal, communication system, and program

According to one embodiment, an electronic apparatus includes a first processor, a second processor with a security capability higher than a security capability of the first processor, a first nonvolatile memory to store a program which is to be executed by the first processor, and a volatile second memory to store the program and data that is to be referred to by the first processor while the first processor executes the program. The second processor is configured to authenticate a rewrite command requesting to change the data in the second memory and selectively execute the rewrite command based on the authentication.

Growing community of inventors

Fujisawa Kanagawa, Japan

Yuki Kanbe