Patent ID: 11882209
Assignee: SK HYNIX INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 9:
10. A controller comprising:
an access manager configured to receive a plurality of access requests for accessing a same zone from a plurality of hosts, select one host that outputs an access request of which an input order is the earliest among the plurality of access requests, among the plurality of hosts, output a reject signal to unselected hosts excluding the selected host among the plurality of hosts, and output, to the selected host, a key for confirming the selected host;
a key generator configured to store a plurality of keys and to output one of the plurality of keys as the key in response to a key generation signal;
a key manager configured to transmit the key generation signal to the key generator and transmit the key output from the key generator to the access manager according to a request of the access manager; and
a key comparator configured to check the key included in an operation request when the selected host outputs the operation request including the key.