Vehicle locating and communicating method and apparatus
Assignee@Track Communications, Inc.
InventorLarry C. Wortham
Life of this patent
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Abstract
A method and apparatus for locating and communicating with vehicles is provided, including at least one mobile cellular unit connected to at least one microprocessor and installed within a vehicle. The microprocessor interrogates the mobile cellular unit to obtain location information from an overhead message stream transmitted from cellular telephone transmitter sites. The location is displayed on a display located in the vehicle or the microprocessor periodically instructs the mobile cellular unit to initiate a call to a host controller and, upon receipt of transmitting instructions from the host controller, transmits the location information for display on a screen connected to the host controller.
Claims24
A system for communicating using a cellular telephone network, comprising:
- a host controller comprising a communication device coupled to a cellular telephone network and operable to communicate a system identification number list using the cellular telephone network;
- and
- a mobile unit remotely disposed from the host controller and coupled to the cellular telephone network, the mobile unit operable to receive the system identification number list communicated by the host controller, the mobile unit further comprising a memory operable to store the system identification number list and a processor operable to access the system identification number list stored in memory to determine if the mobile unit is authorized to dial out in a particular cellular system area providing service to the mobile unit.
A mobile unit for communicating using a cellular telephone network, comprising:
- a communication device operable to receive a system identification number list from a host controller remotely disposed from the mobile unit;
- a memory coupled to the communication device and operable to store the system identification number list;
- and
- a processor coupled to the memory and operable to access the system identification number list to determine if the mobile unit is authorized to dial out in a particular cellular system service area providing service to the mobile unit.
The method for communicating using a cellular telephone network, the method comprising the following steps performed at a mobile unit;
- receiving a system identification number list from a host controller remotely disposed from the mobile unit;
- storing the system identification number list in a memory;
- and
- accessing the system identification number list to determine if the mobile unit is authorized to dial out in a particular cellular system service area providing service to the mobile unit.
Dependencies are inferred from the claim text.