Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1992-09-30
1996-03-05
Pham, Chi H.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455 321, 455 671, 4551661, 4551861, H04B 116
Patent
active
054975085
ABSTRACT:
A method and apparatus for efficiently monitoring a plurality of radio channels in a data communication system in which mobile message receiving devices are programmed to receive messages on a plurality of channels by selecting a group of channels for scanning, based upon detection of signal activity in the radio channels.
REFERENCES:
patent: 4903320 (1990-02-01), Hanawa
patent: 5093926 (1992-03-01), Sasuta
patent: 5189413 (1993-02-01), Gaskill et al.
Pham Chi H.
Uniden America Corporation
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