Patent ID: 7505087
Filing Date: 2009-03-17
Classification: H03J,H04N

Abstract:
1. A broadcasting receiver having at least two tuners and a function capable of simultaneously displaying broadcasting signals of at least two channels, the broadcasting receiver comprising: a plurality of tuners configured to convert RF signals selected from among a plurality of received RF signals into IF signals; a plurality of demodulators configured to demodulate the IF signals from the tuners to output video signals; and an interference controller configured to read data used to control oscillation frequencies for respective channels to select a specific channel with reference to a channel frequency of a currently selected and displayed broadcasting signal and to operate at least one other tuner according to the read data when a broadcasting signal received by said at least one other tuner is not displayed, and wherein the interference controller supplies a PLL data of a frequency bandwidth channel reducing or preventing an interference with the selected channel to said at least one other tuner.