Portable radio apparatus having battery saved channel scanning function
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United States of America Patent
Stats
-
Dec 11, 1990
Grant Date -
N/A
app pub date -
Feb 19, 1988
filing date -
Feb 20, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A portable radio apparatus may operate in a battery saving mode on any one of a plurality of channels, in order to communicate with a central office. The apparatus selects a channel for its use on a basis of the strength of the electrical fields on the various channels. During an initial period the apparatus scans continuously for a channel. If no channel is found during the initial period, the apparatus switches to an intermittent scan, with power down between the intermittent scan, thus providing the battery saving mode.
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Family
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