Vehicle locating and communicating method and apparatus using cellular telephone network
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United States of America Patent
Stats
-
Mar 29, 1994
Issued Date -
N/A
app pub date -
Jul 28, 1992
filing date -
Jan 17, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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