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Modem for connection to a telephone line through a either portable computer connector or a docking station

  • US 5,931,929 A
  • Filed: 12/31/1996
  • Issued: 08/03/1999
  • Est. Priority Date: 12/31/1996
  • Status: Expired due to Fees
First Claim
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1. A computer system comprising:

  • a portable computer having a housing;

    a docking station for receiving said portable computer, the docking station including electrical connecting paths making connection between said portable computer and said docking station;

    a modem in said portable computer, the modem including signal processing circuits and including a first phone jack for making direct connection to a telephone line, with coupling between said first phone jack and said signal processing circuits, wherein said coupling includes a first isolation unit for coupling said first phone jack to said signal processing circuits to isolate high voltages appearing on said telephone line and first phone jack from said signal processing circuits;

    a phone line connection in said docking station including a second phone jack;

    a second isolation unit in said docking station; and

    said connecting paths coupling said second phone jack of said docking station to said signal processing circuits in said portable computer via said coupling.

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