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Radio communication system for a selected one of a plurality of terminal units of different kinds

  • US 5,349,698 A
  • Filed: 12/02/1992
  • Issued: 09/20/1994
  • Est. Priority Date: 12/26/1989
  • Status: Expired due to Term
First Claim
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1. A radio communication apparatus for use in combination with a selected terminal unit, the selected terminal unit being selected from a plurality of terminal units of different kinds, the selected terminal unit being a selected kind, said radio communication apparatus including receiving means for receiving a radio signal to produce a received signal and adjusting means for adjusting said received signal to produce an adjusted signal, said radio communication apparatus comprising:

  • detecting means for detecting the kind of said selected terminal unit from among the different kinds and for producing a type signal representative of the selected kind; and

    control means coupled to said adjusting means and said detecting means for controlling said adjusting means to make said adjusted signal have a selected level which is appropriate for said selected terminal unit in accordance with said type signal, said selected terminal unit comprising one of a hands-free terminal unit, a terminal unit having a control unit responsive to said control means and further being responsive to a manually operated volume control and a terminal unit which is not responsive to said control means and having an adjustable volume control for adjusting the volume of an output audio signal independently of said control means.

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