H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/95
H04B 7/08 (2006.01)
Patent
CA 1110708
SECTORED ANTENNA RECEIVING SYSTEM ABSTRACT OF THE DISCLOSURE A plurality of horizontally directive antenna sectors are arranged in configuration to receive signals from remote transmitters over a given angle in the horizontal plane. A scanning system is operative in one of several modes to sequentially couple each sector to a receiver. In its first mode, each sector is sequentially scanned with the output signal level therefrom being compared to a reference level. If the signal level on any sector exceeds the reference level the scanner activates to its second mode wherein scanning continues for a predetermined interval. At the end of the interval, scanning is inhibited and the receiver is coupled to that sector which produced the strongest signal level during the second mode scanning cycle. In the inhibit scan mode, if the signal level from the sector falls to a minimum level for a given time period the system reverts to the first scanning mode.
298517
Craig Timothy P.
Stimple James R.
Gowling Lafleur Henderson Llp
Motorola Inc.
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