Patent ID: 8112127

Claim:
A communication system capable of adjusting power consumed thereby, said communication system being adapted for receiving connection information, and comprising: a first transceiving device comprising a transmitting end and a service end for receiving the connection information; and a second transceiving device including a receiving end capable of forming a communications link with said transmitting end; wherein: a power state of each of said first and second transceiving devices is switchable between a power-supplied mode and a power-saving mode, said power state altering status of the communications link; the power state of each of said first and second transceiving devices switches between said power-supplied mode and said power-saving mode according to whether or not said service end receives the connection information; when said service end of said first transceiving device no longer detects receipt of the connection information, said first transceiving device switches said transmitting end to said power-saving mode, so as to cause said second transceiving device to switch said receiving end to said power-saving mode, thereby disabling communication between said first and second transceiving devices; and when said service end of said first transceiving device detects receipt of the connection information, said first transceiving device switches said transmitting end to said power-supplied mode, so as to cause said second transceiving device to switch said receiving end to said power-supplied mode, thereby enabling communication between said first and second transceiving devices such that said receiving end is able to receive information.