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Wireless personal listening system and method

  • US 8,867,748 B2
  • Filed: 12/19/2011
  • Issued: 10/21/2014
  • Est. Priority Date: 12/21/2010
  • Status: Expired due to Fees
First Claim
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1. 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.

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