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Modem for tight coupling between a computer and a cellular telephone

  • US 5,428,671 A
  • Filed: 11/09/1992
  • Issued: 06/27/1995
  • Est. Priority Date: 11/09/1992
  • Status: Expired due to Term
First Claim
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1. A modem for connection with a cellular phone and a host computer, the host computer for providing commands according to the conventional land line AT command set to the modem, the modem comprising:

  • a host computer communications port for connection with the host computer for receiving commands from the host computer;

    a cellular phone communications port for connection with the cellular phone for allowing transfer of data and commands; and

    means connected to said host computer and said cellular phone communication ports for receiving commands, including land line AT dial commands, from the host computer and providing commands to the cellular phone, said means for receiving converting received commands that are land line AT dial commands to appropriate cellular phone commands and transmitting said appropriate cellular phone commands to the cellular phone after conversion of said land line AT dial commands,wherein said means for receiving converts received land line AT dial commands by transmitting signal elements to the cellular phone until a delaying dial modifier is received, then transmitting a SEND command, and then performing the operation corresponding to the received delaying dial modifier.

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