Patent ID: 6657534
Filing Date: 2003-12-02
Classification: G06F

Abstract:
An electronic device adapted to be coupled to other devices in a communication link, the electronic device comprising:at least two ports configured to communicate to the other devices over the communication link; and a controller coupled to the at least two ports, the controller configured to: cause the electronic device to enter a standby power mode if a shutdown command is received by the electronic device and there is a cessation of signal activity at any one of the at least two ports; cause the electronic device to retransmit the shutdown command to at least one of the other devices in the communication link; cause the electronic device to enter a restored power mode if communication is received at an inactive port, the inactive port being one of the at least two ports in an inactive mode; and cause the electronic device to remain in the standby power mode if communication is received at an active port, the active port being one of the at least two ports in an active mode.