Patent ID: 8392944

Claim:
A start-up method for a digital broadcasting receiving apparatus, the start-up method comprising: simultaneously performing a booting operation related to a central processing unit (CPU) and a channel digital decoding operation related to a channel of a received digital broadcast signal to be displayed when the digital broadcasting receiving apparatus is powered on; wherein the channel digital decoding operation comprises: extracting channel information stored in a nonvolatile memory with respect to a channel to be displayed after an initialization of the CPU booting operation; digitally decoding the channel using the extracted channel information during the initialization of the CPU; determining whether the CPU booting operation is finished; if the CPU booting operation not finished, notifying to the CPU that the channel decoding operation is finished by sending a signal representing that the digital decoding of the channel is finished to the CPU; if the CPU booting operation is finished, providing the channel decoded by the channel digital decoding operation to the CPU; and displaying a decoded channel signal when the CPU booting operation and the channel digital decoding operation are finished.