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Automatic sensing of communication or accessories for mobile terminals

  • US 6,285,890 B1
  • Filed: 01/26/1999
  • Issued: 09/04/2001
  • Est. Priority Date: 01/26/1999
  • Status: Expired due to Term
First Claim
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1. A mobile communication device comprising:

  • a.) a transceiver for transmitting and receiving signals;

    b.) a modem operatively connected to said transceiver;

    c.) a configurable system interface comprising a plurality of electrical contacts and a switching circuit, said system interface having a default configuration corresponding to a default mode of operation for connecting said mobile communication device to an external phone accessory, and a communication configuration corresponding to a communication mode of operation for connecting said mobile communication device to an external communication terminal capable of data, fax and/or voice communications, wherein said switching circuit connects said contacts to said transceiver according to a first mapping in said default mode and according to a second mapping in said communication mode;

    d.) a control unit operative in said default mode of operation to enable use of a connected phone accessory and in said communications mode to enable data, fax and voice communications by a connected communications terminal via said modem; and

    e.) wherein said control unit is operative to change said system interface from said default configuration to said communication configuration in response to receipt of a first predetermined input signal on a data input circuit of said system interface from said connected communication terminal.

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