Patent ID: 11889416
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Digital communication (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 8:
9. An information processing system comprising a host device, a first information processing apparatus, and a second information processing apparatus, wherein the first information processing apparatus comprises:
a first device interface configured to transmit and receive data to and from a terminal device;
a first network interface configured to transmit and receive data to and from a network;
a power supply part configured to supply electric power from an external power supply;
a battery configured to supply electric power when a power supply from the power supply part is stopped; and
a first control part configured to:
perform a first conversion process on data from the terminal device, and transmit the data to the network; and
when the power supply from the power supply part is stopped, transmit, to the host device through the first network interface, a first message indicating that a pass-through mode in which data is relayed between the terminal device and the network without being subjected to the first conversion process is set, and set the pass-through mode,

wherein the second information processing apparatus comprises:
a second device interface configured to transmit and receive data to and from the host device;
a second network interface configured to transmit and receive data to and from the terminal device through the network; and
a second control part configured to:
perform a second conversion process corresponding to the first conversion process on data from the first information processing apparatus, and transmit the data to the host device; and
when a command indicating that the first information processing apparatus is operating in the pass-through mode, transmit the data from the first information processing apparatus to the host device without performing the second conversion process, and

wherein the host device includes:
a communication part configured to transmit and receive data to and from the second information processing apparatus; and
a processor configured to transmit the command to the second information processing apparatus through the communication part when the first message is received through the communication part.