Patent ID: 7673212

Claim:
A power control device for a DMB (multimedia broadcasting) receiver, for receiving a multiplexed broadcast signal transmitted from a DMB, the device comprising: N CDM/FEC (code division multiplexing/forward error correction) parts for demodulating the received broadcast signal into up to N CDM channel signals and error-correcting the demodulated up to N CDM channel signals in order to generate at least one of a pilot payload signal or a transport stream; a plurality of clock switches for controlling clock signals supplied to the N CDM/FEC parts configured to selectively control an operation of the demodulated channel of the N CDM/FEC parts; a clock switch controller for controlling the plurality of clock switches; and a CPU (central processing unit) for controlling the clock switch controller to operate the N CDM/FEC parts to interface with at least one of a broadcast channel comprising channel information or a broadcast channel selected by a user, wherein the channel information of the CDM/FEC parts is determined by the existence of a predetermined code wherein the N CDM/FEC parts are configured to demodulate the received broadcast signal into up to N CDM channel signals.