Patent ID: 8525932

Claim:
A method for reducing signal distortion during analog television (TV) signal receiving method, comprising: receiving an analog radio-frequency (RF) TV signal by a tuner; generating an analog frequency down conversion signal according to the analog RF TV signal; generating a digital frequency down conversion signal according to the analog frequency down conversion signal; generating a digital demodulated signal according to the digital frequency down conversion signal; correcting the digital demodulated signal utilizing an equalizer to generate a digital receiving signal, with the equalizer comprising a plurality of correction coefficients generated according to a predetermined rule; providing a simulation analog TV signal by an analog TV receiving circuit; generating a digital reference signal according to the simulation analog TV signal; generating a simulation analog RF TV signal according to the simulation analog TV signal, and transmitting the simulation analog RF TV signal to the tuner, with the simulation analog RF TV signal being processed to generate a simulation digital receiving signal; and generating the plurality of correction coefficients according to the predetermined rule, the digital reference signal, and the simulation digital receiving signal.