H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 29/04 (2006.01) H04L 12/66 (2006.01) H04M 11/06 (2006.01) H04Q 3/64 (2006.01)
Patent
CA 2578978
According to one embodiment, a communication system includes a first terminal to be connected to a first communication network, assigned a terminal ID and driven by power supplied from a battery, a server apparatus to be connected to a second communication network differing from the first network, to periodically confirm presences of the first terminal and a second terminal to be connected to the second communication network, and to communication-connect between the first and the second terminals in the case of presences thereof, and a controller which makes the server apparatus monitor that the first terminal is present on the first communication network by a second period longer than a first period monitoring that the second terminal is present on the second communication network.
Araki Motohisa
Kitazawa Kenichi
Fetherstonhaugh & Co.
Kabushiki Kaisha Toshiba
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