Telecommunications – Transmitter and receiver at separate stations – Optimum frequency selection
Patent
1994-10-31
1996-06-04
Urban, Edward F.
Telecommunications
Transmitter and receiver at separate stations
Optimum frequency selection
455 331, 455 561, H04B 1500, H04B 1700
Patent
active
055242804
ABSTRACT:
In a general frequency reuse data communications system including infrastructure 100 and a subscriber terminal 115 a method of acquiring a channel includes: fast scanning 199 a predetermined list of data channels to identify a fast scanned channel; intermediate scanning 200, when the fast scanned channel is not identified, the predetermined list of channels to identify an intermediate scanned channel where a channel from the predetermined list of channels is evaluated for a first time period; and slow scanning 500, when the intermediate scanned channel is not identified, the predetermined list of channels to identify a slow scanned channel where a channel from the predetermined list of channels is evaluated for a second time period.
REFERENCES:
patent: 4481670 (1984-11-01), Freeburg
patent: 4723302 (1988-02-01), Fulmer et al.
patent: 5093926 (1992-03-01), Sasuta
patent: 5212803 (1993-05-01), Uddenfeldt et al.
patent: 5261117 (1993-11-01), Olson
Douthitt Brian L.
Rupolo Russ M.
Sek Stephen
Banks-Harold Marsha D.
Bethards Charles W.
Motorola Inc.
Urban Edward F.
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