Patent ID: 8867748

Claim:
A personal listening system, comprising: (a) a base unit including: a source of an audio signal; a user control for selecting an FM channel; a modulator for modulating the audio signal onto the selected FM channel to produce a modulated audio signal with encoded right and left stereo channels; and an FM transmitter for wirelessly transmitting the modulated audio signal over the selected FM channel; and (b) physically separate, entirely self-contained, battery-operated right-ear and left-ear listening units worn by a user, each listening unit thereof including: an FM stereo tuner; an apparatus for tuning the FM stereo tuner to the selected FM channel to receive the modulated audio signal with the encoded right and left stereo channels; a demodulator for demodulating the received modulated audio signal modulated onto the selected FM channel to produce a demodulated audio signal; an amplifier in the right-ear listening unit for amplifying the demodulated audio signal associated with the encoded right stereo channel to produce an amplified audio signal associated with the encoded right stereo channel; an amplifier in the left-ear listening unit for amplifying the demodulated audio signal associated with the encoded left stereo channel to produce an amplified audio signal associated with the encoded left stereo channel; a transducer in the right-ear listening unit for converting the amplified audio signal associated with the encoded right stereo channel into sound for the right ear of the user; and a transducer in the left-ear listening unit for converting the amplified audio signal associated with the encoded left stereo channel into sound for the left ear of the user.