Radio telephone apparatus having a service area confirmation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 22, 1995
Issued Date -
N/A
app pub date -
Apr 18, 1994
filing date -
Mar 23, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A radio telecommunication apparatus includes a storage for storing a system identification data of a system to which the apparatus belongs to and provides an indication relating to where the apparatus is present on the basis of a result of a comparison between the system identification data stored in the storage and a system identification data received through a control channel which is established immediately before a speech communication link is established. According to the present invention, even if the user's apparatus moves, at the time of calling, from the home area to the roam area or from the roam area to the home area, the area confirmation data corresponding to the current position of the apparatus is accurately displayed.
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Family
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Cited Art Landscape
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