Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1995-11-13
1998-10-06
Eisenzopf, Reinhard J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
455562, 455101, 455135, 455272, 375347, H04Q 730
Patent
active
058191828
ABSTRACT:
A method and apparatus for improving the signal-to-interference ratio and signal-to-noise ratio of a signal transmitted on a reverse channel from a mobile transmitter in a land mobile communications system by using a sectored cell in which the same channel is received by each sector of the cell. Each directional antenna is coupled to a unique associated receiver tuned to the same frequency or frequencies as the other receivers associated with each other directional antenna within the same sectored cell. Depending upon the location of the mobile end system with respect to the antenna pattern of each directional antenna, each signal will typically be redundantly received over more than one, but less than all, of the antennas. In accordance with the present invention, only one of the received signals is to be communicated from the base station to an intermediate system and all others are to be discarded. If multiple copies of the same message are received, then the control computer couples only one such copy to the intermediate system and discards each of the others.
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patent: 5095535 (1992-03-01), Freeburg
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patent: 5341375 (1994-08-01), Buchholz et al.
patent: 5390342 (1995-02-01), Takayama et al.
patent: 5463646 (1995-10-01), Dillon et al.
Gardner Steven H.
Hardin Carl Thomas
Eisenzopf Reinhard J.
Pacific Communication Sciences, Inc.
Sobutka Philip J.
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