An information processing device comprises wireless communication, GPS, vibration determination, control and power input units, the latter configured to receive power from a power source and to supply power to each of the other units; and wherein, in a power saving mode of the information processing device, the control unit supplies power to at least the vibration determination unit and the control unit, and to switch off supply of power to the wireless communication unit; and wherein, in a work mode, the control unit controls the power input unit to supply power to at least the wireless communication the control units. In use the power is supplied to the communications and GPS units when vibration is detected, and a user authentication may be sought via wireless communications. If no authentication is received the alarm is triggered is the GPS location lies outside a defined area. The device may also be switched on is a voltage above a threshold level is detected.
Information processing device
2023-03-15
Patent
Electronic Resource
English
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