Wireless signal transmission systems, methods and apparatus

A wireless receiver unit for receiving locally transmitted frequency modulated audio signals produced by a local wireless audio signal transmitter, the locally transmitted signals being produced within a first, relatively high frequency band, comprising:

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

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 audio signals therefrom;
• and
• a frequency modulation integrated circuit receiver having an input connected to the downconverter to receive the downconverted frequency modulated radio signals and operative to reproduce the audio signals therefrom.

A wireless receiver unit for receiving locally transmitted frequency modulated audio signals produced by a local wireless audio signal transmitter, the locally transmitted signals being produced within a first, relatively high frequency band, comprising:

• an antenna for receiving the locally transmitted signals;
• a fixed frequency downconverter coupled with the antenna to receive the locally transmitted frequency modulated audio signals therefrom and operative to downconvert the received locally transmitted frequency modulated audio signals to a second frequency band including signal frequencies lower than signal frequencies included in the first, relatively high frequency band of the received locally transmitted frequency modulated audio signals;
• and
• a frequency modulation integrated circuit receiver having an input connected to the downconverter to receive the downconverted frequency modulated audio signals and operative to reproduce the audio signals therefrom, said second frequency band being an FM frequency band which when supplied to an FM radio produces audio signals therefrom.