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Mixed mode transceiver system

  • US 6,006,104 A
  • Filed: 04/30/1997
  • Issued: 12/21/1999
  • Est. Priority Date: 10/09/1987
  • Status: Expired due to Fees
First Claim
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1. A method of controlling a cellular radiotelephone including a controller, transceiver circuitry coupled to the controller to communicate with a fixed radio site, and a receptive coupler coupled to the controller to receive an external intercoupler, comprising the steps of:

  • communicating through the receptive coupler with a microprocessor associated with the external intercoupler to obtain a code of a data set;

    establishing via the transceiver a communication link with the fixed radio site using the code while said receptive coupler receives said external intercoupler; and

    precluding, by the controller, the establishment of a subscriber communication link with the fixed site using the code upon disconnection of the external intercoupler from the receptive coupler.

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