System and method for communicating location and direction specific information to a vehicle
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United States of America Patent
Stats
-
May 4, 1999
Grant Date -
N/A
app pub date -
Aug 1, 1996
filing date -
Aug 1, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system and method for providing information to the operator of a land, water or airborne vehicle includes a wide-area message transmitter for transmitting messages to the vehicle and a vehicle-based receiver system. Each message includes identification information specifying a location (including a direction of travel) for which the message is intended. The receiver system on the vehicle computes its position and direction of travel and compares the position of the vehicle to the intended location indicated by each message. When a match is found, the receiver system provides the matching message to the operator of the vehicle. The messages are digitized voice messages. In a preferred embodiment, the vehicle-based receiver system calculates its position and direction of travel using either GPS or signals received from a local transmitter site.
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