Patent ID: 8334621

Claim:
An electronic equipment comprising: a data transmission unit that transmits content data to an external equipment over a transmission line or receives the content data from the external equipment over the transmission line; a power supply turned-on information acquisition unit that acquires power supply turned-on information concerning the external equipment; an information-on-manipulation acquisition unit that acquires information on a power supply turning-on manipulation; and a power supply state control unit that controls a power supply state into any of an off state, a standby state, and an on state, wherein when the power supply turned-on information acquisition unit acquires the power supply turned-on information concerning the external equipment with the power supply state set to the off state, the power supply state control unit changes the power supply state from the off state to the standby state; and when the information-on-manipulation acquisition unit acquires the information on the power supply turning-on manipulation with the power supply state set to the standby state, the power supply state control unit changes the power supply state from the standby state to the on state, wherein the power supply turned-on information acquisition unit acquires the power supply turned-on information concerning the external equipment on the basis of a voltage change in a predetermined line included in the transmission line, and wherein the predetermined line includes a facility that notifies the connected state of the external equipment according to a dc bias voltage.