Patent ID: 7266341
Filing Date: 2007-09-04
Classification: H03J,H04H,H04N

Abstract:
1. A digital broadcast receiving apparatus comprising: a tuner for receiving a coded digital broadcast signal, wherein the tuner scans carrier frequencies of the digital broadcast signal to receive a first carrier frequency; a decoding unit for decoding and outputting the received digital broadcast signal at the first carrier frequency; an extraction unit for extracting service information of each of a plurality of channels from the decoded digital broadcast signal at the first carrier frequency; and a memory for storing the extracted service information, wherein after the memory stores the extracted service information, the tuner automatically scans the carrier frequencies to receive a second carrier frequency different from the first carrier frequency, the decoding unit decodes and outputs a second received digital broadcast signal at the second carrier frequency, and the extraction unit extracts service information of each of a plurality of channels from a decoded second digital broadcast signal at the second carrier frequency.