Radio subscriber system with efficient use of radio frequency carrier waves
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 8, 1983
Grant Date -
N/A
app pub date -
Jun 9, 1980
filing date -
Jun 12, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A radio subscriber system switches between a plurality of radio link channels and seizes one responsive to an idle tone appearing thereon. A control circuit uses a microprocessor to select transmit and receive carrier frequencies for the seized channel. This selection is made by storing the channel identification in a random access memory while interrogating a read-only memory for channel frequency assignments. The control circuit identifies the seized circuit by channel signals which are demodulated when the seizure occurs.
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Cited Art Landscape
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