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Multi-mode radiotelephone having a multiple battery arrangement

  • US 6,021,332 A
  • Filed: 04/01/1997
  • Issued: 02/01/2000
  • Est. Priority Date: 04/01/1997
  • Status: Expired due to Term
First Claim
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1. A method for operating a radiotelephone, the radiotelephone including a main battery, the method comprising the steps of:

  • detecting presence of a removable module;

    identifying the removable module as one of an auxiliary battery and a radio frequency (RF) communication circuit;

    if the removable module comprises the auxiliary battery, selecting one of the main battery and the auxiliary battery for powering the radiotelephone; and

    if the removable module comprises the RF communication circuit, operating the RF communication circuit.

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