H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/117
H04B 1/16 (2006.01) H04B 1/40 (2006.01) H04M 1/73 (2006.01) H04Q 7/32 (2006.01)
Patent
CA 1319958
Abstract of the Disclosure A portable radio apparatus comprises a receiving section capable of being tuned to any of a plurality of channels, a switch circuit for controlling supply of power from ? battery to the receiving section and a detector circuit for detecting strength of electric fields which are developed on said channels. A control section is connected to said receiving section and the switch circuit and constructed such that, in response to an output of said detector circuit, the control section executes channel scanning for tuning the receiving section sequentially to the channels while, at this instant, controlling said switch circuit to feed power continuously to the receiving section and, when no data has appeared on said channels within a first predetermined period of time during the channel scanning, executes saving scanning for repeating a cycle in which said channels are sequentially scanned by one round and, then, the scanning is interrupted for a second predetermined period of time while, at this instant, controlling the switch circuit to feed power to the receiving section in synchronism with the saving scanning.
559465
Corporation Nec
G. Ronald Bell & Associates
LandOfFree
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