Patent ID: 8370670
Filing Date: 2013-02-05
Classification: G06F,H04L,Y02D

Abstract:
1. An electronic apparatus, comprising: a first communication unit configured to connect the electronic apparatus and an external device in a one-to-one relationship for data communications; a second communication unit configured to connect the electronic apparatus and one or more other external devices via a network for data communications; a first detection unit configured to detect a connection status of the first communication unit; a second detection unit configured to detect a connection status of the second communication unit; and a power control unit configured to control power to the electronic apparatus, wherein the first detection unit is configured to determine the connection status of the first communication unit when the electronic apparatus is turned on, the power control unit is configured to monitor the connection statuses of the first communication unit and the second communication unit via the first detection unit and the second detection unit after the first detection unit detects a connection to the first communication unit and to keep the electronic apparatus turned on while a connection to at least one of the first communication unit and the second communication unit is detected, and if connections to both the first communication unit and the second communication unit become undetectable after an initial connection to the first communication unit is detected by the first detection unit after the electronic apparatus is turned on and if a time period from when the connection to the first communication unit has become undetectable to when the connection to the second communication unit has become undetectable is greater than or equal to a predetermined time period, the power control unit is configured to return to an initial state where the power control unit waits until the first detection unit detects a connection to the first communication unit.