Patent ID: 8437716

Claim:
A broadcast receiver, comprising: a tuner circuit for tuning a radio frequency (RF) signal to output an intermediate frequency (IF) signal; and a demodulator circuit for demodulating the IF signal from the tuner circuit and outputting a command signal based on the quality of the IF signal, for changing a take over point (TOP) value in the tuner circuit; wherein the tuner circuit comprises a RF amplifier followed by an IF amplifier and the demodulator circuit sets the TOP value according to the RF amplifier at different gain values, the gain values of the IF amplifier respectively correspond to the gain values of the RF amplifier, the gain values of the IF amplifier are weighted based on weights corresponding to the quality of the IF signal when the quality of the IF signal is over a predetermined threshold, and the TOP value is set by accumulating the weighted gain values of the IF amplifier.