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Wireless signal transmission systems, methods and apparatus

  • US 5,410,735 A
  • Filed: 06/13/1994
  • Issued: 04/25/1995
  • Est. Priority Date: 01/17/1992
  • Status: Expired due to Term
First Claim
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1. A local wireless audio signal transmission system for transmitting audio signals within a local signal transmission area, comprising:

  • local radio transmitter means for transmitting the audio signals wirelessly within the local signal transmission area in the form of frequency modulated radio signals within a first, relatively high frequency band; and

    wireless receiver means for receiving the frequency modulated radio signals for reproducing the audio signals therefrom, the wireless receiver means comprising;

    an antenna for receiving the locally transmitted frequency modulated radio signals;

    a fixed frequency downconverter coupled with the antenna to receive the locally transmitted frequency modulated radio signals therefrom and operative to downconvert the received frequency modulated radio signals to a second frequency band including signal frequencies lower than signal frequencies included in the first, relatively high frequency band, said second frequency band being an FM frequency band which when supplied to an FM radio produces said audio signals therefrom; and

    frequency modulation receiver means in said FM radio connected to said downconverter to receive the downconverted frequency modulated radio signals and reproduce the audio signals therefrom.

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