Portable radio telephone having power saver
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 20, 1990
Grant Date -
N/A
app pub date -
Jul 23, 1987
filing date -
Jul 26, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A battery-powered portable radio telephone for use in a mobile telephone network receives signals from the network and judges from the received signal whether the radio telephone is inside or outside of the service area of the network. A battery saver is provided to periodically interrupt the battery power of the telephone when the latter is judged as being outside of the service area.
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Family
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Cited Art Landscape
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