Cellular telecommunication switching system for providing public emergency call location information
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United States of America Patent
Stats
-
Feb 7, 1995
Grant Date -
N/A
app pub date -
Aug 30, 1993
filing date -
Aug 30, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cellular telecommunication switching system responsive to an emergency call from a cellular telephone to request that the geo-coordinates be transmitted from the cellular telephone and to convert those coordinates into conventional municipality or rural address location information. In one embodiment, the cellular telecommunication switching system utilizes an internal database to convert the geo-coordinates to location information. In another embodiment, the cellular telecommunication switching system utilizes an external database to perform this conversion. In yet a third embodiment, a cellular telephone performs the conversion and transmits to the cellular telecommunication switching system the location information.
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