Patent ID: 7627030

Claim:
A radio receiver including an equalizer that is configured to be selectively and automatically disabled, the radio receiver comprising: a radio frequency (RF) section coupled to an intermediate frequency (IF) section configured to provide a received signal, the radio frequency section tunable to a plurality of stations; an equalizer, coupled to the IF section and configured to perform an algorithm corresponding to a constant modulus algorithm (CMA) on the received signal; a demodulator coupled to the equalizer and configured to demodulate a frequency modulated (FM) received signal to provide a demodulated signal for audio processing; and an offset detector configured to determine an offset associated with the demodulated signal at an output of the demodulator, the offset being representative of a frequency offset, and to selectively disable the equalizer in accordance with the offset wherein the offset detector further comprises a direct current (DC) level detector configured to provide a DC level corresponding to the demodulated signal; and wherein the offset detector further comprises a comparator configured to compare the DC level to a threshold and provide a control signal to disable the equalizer when the threshold is satisfied.