METHOD AND SYSTEM FOR MODEM PROTOCOL DISCRIMINATION
First Claim
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.
13 Assignments
0 Petitions
Accused Products
Abstract
The invention provides a method of selecting a modem carrier type for data transmission over a wireless communication system. An incoming call is received from a mobile vehicle and then an initial carrier tone is sent to a mobile vehicle in response to the incoming call. A modem response signal is received from a vehicle modem in response to the initial carrier tone. The modem response signal is determined to be either an analog modem response signal or a digital modem response signal, and then the call is connected to either the analog modem or digital modem based on the modem response signal determination.
-
Citations
19 Claims
-
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 Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A wireless modem system for selecting a modem carrier type comprising:
-
means for receiving an incoming call from a mobile vehicle;
means for sending an initial carrier tone to the mobile vehicle in response to the incoming call;
means for receiving a modem response signal from a vehicle modem in response to the initial carrier tone;
means for determining whether the modem response signal is one of an analog modem response signal or a digital modem response signal; and
means for connecting the call to one of an analog modem or a digital modem based on the modem response signal determination. - View Dependent Claims (10, 11, 12)
-
-
13. A computer usable medium including a program for selecting a modem carrier type, comprising:
-
computer program code for receiving an incoming call from a mobile vehicle;
computer program code for sending an initial carrier tone to the mobile vehicle in response to the incoming call;
computer program code for receiving a modem response signal from a vehicle modem in response to the initial carrier tone;
computer program code for determining whether the modem response signal is one of an analog modem response signal or a digital modem response signal; and
computer program code for connecting the call to one of an analog modem or a digital modem based on the modem response signal determination. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
Specification