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RADIO CONTROL AND REPEATER COMMUNICATION SYSTEM

  • US 3,699,443 A
  • Filed: 03/02/1970
  • Issued: 10/17/1972
  • Est. Priority Date: 03/02/1970
  • Status: Expired due to Term
First Claim
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1. In a communications system, the combination including a portable radio transmitter, a mobile radio receiver adapted to receive radio frequency signals emanating from said portable transmitter and having an output, a mobile radio transmitter having an input selectively connectable to said output of said mobile receiver, said portable and mobile transmitters transmitting on different frequencies, said mobile transmitter being adapted to receive and transmit signals received from said output of said mobile receiver, code generating means operatively associated with said portable transmitter, decoding means controlled by said code generator means, and switching means controlled by said decoding means and operable to energize the mobile transmitter and to connect said output of said mobile receiver to said input of said mobile transmitter.

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