Patent ID: 8368527

Claim:
An electronic device controlling system comprising: a first electronic device including: a first data communication unit for effecting the reception of a control signal, the control signal including subject device information identifying at least one of a mobile phone, a personal digital assistant (PDA) and a mobile game device as a subject device, the control signal further including a command for the subject device; a first electrode for receiving the control signal for the first data communication unit from outside of the first electronic device; an operating unit; a first control unit that determines whether the first electronic device is the subject device or not from the subject device information included in the control signal, and, if the first electronic device is the subject device, executes the command included in the control signal; a system register storing information; a recording unit configured to save the information of said system register upon the first control unit determining that the first electronic device is the subject device; a timer configured to start counting to a predetermined value upon the first control unit determining that the first electronic device is the subject device; wherein in a case where an ensuing control signal is not received by the first electrode until said timer has counted to the predetermined value, a value of said system register is reset to a stored value; and wherein in a case where the ensuing control signal is received by the first electrode during the counting by the timer but before said timer has counted to the predetermined value, the timer is reset upon reception of the ensuing control signal by the first electrode and before said timer has counted to the predetermined value, and the counting is resumed upon resetting said timer; and a second electronic device including: a second control unit; a second data communication unit for effecting the transmission of the control signal, which includes the subject device information and the command for the subject device, and said ensuing control signal on the basis of control by the second control unit; and an electrode for human body communication for sending the control signal, which includes the subject device information and the command for the subject device, and the ensuing control signal from the second data communication unit to the outside of the first electronic device, wherein when the first electrode and the electrode for human body communication are electromagnetically coupled to each other, the first electronic device receives the control signal, which includes the subject device information and the command for the subject device, from the second electronic device via the electrode for human body communication.