Patent ID: 8619199

Claim:
A demodulator, comprising: an analog to digital converter configured to receive a television signal from a tuner and output a corresponding digitized television signal, wherein the television signal received by the analog to digital converter comprises a digital television signal or an analog television signal; a first gain module configured to generate, based on the digitized television signal, a first feedback for adjusting the television signal provided to the analog to digital converter by the tuner, wherein the first feedback is applied to the television signal regardless of whether the television signal is a digital television signal or an analog television signal; and a second gain module configured to generate second feedback for further adjusting the television signal provided to the analog to digital converter by the tuner, wherein the second feedback is provided to further adjust the television signal only when the television signal is an analog television signal, wherein the first feedback is applied to an analog television signal at initialization, and wherein the second feedback is applied when the analog to digital converter is not saturated more than a threshold number of times during a period of time.