×

METHOD AND SYSTEM FOR MODEM PROTOCOL DISCRIMINATION

  • US 20070207835A1
  • Filed: 05/04/2007
  • Published: 09/06/2007
  • Est. Priority Date: 01/31/2002
  • Status: Active Grant
First Claim
Patent Images

1. A method of selecting a modem carrier type for data transmission over a wireless communication system, comprising:

  • receiving an incoming call from a mobile vehicle;

    sending an initial carrier tone to the mobile vehicle in response to the incoming call;

    receiving a modem response signal from a vehicle modem in response to the initial carrier tone;

    determining whether the modem response signal is one of an analog modem response signal or a digital modem response signal; and

    connecting the call to one of an analog modem or a digital modem based on the modem response signal determination.

View all claims
  • 13 Assignments
Timeline View
Assignment View
    ×
    ×