Dynamically reconfigurable frequency division multiplexer and mo

Details Dynamically reconfigurable frequency division multiplexer and mo Dynamically reconfigurable frequency division multiplexer and mo

1995-09-27

1997-03-04

Safourek, Benedict V.

Multiplex communications

Trasmultiplexers

370330, 370484, H04J 400

Patent

active

056087241

ABSTRACT:
A dynamically reconfigurable frequency division multiplexer and modulator accepts multiple input signals, each of which is individually time division multiplexed. Each input signal is used to modulate a carrier signal having a unique frequency. Switches are used to selectively form one or more groups from the modulated signals, and the signals in each group are frequency division multiplexed by summing them together. In a Personal Communication Service environment, the output for each group may be fed to a respective antenna and the switches and carrier signals controlled to selectively associate inputs signals, carrier frequencies and antennas to implement antenna diversity operations and compensate for signal degradation due to multipath propagation effects.

REFERENCES:
patent: 4813035 (1989-03-01), Bishop et al.
patent: 4922483 (1990-05-01), Kobayashi
patent: 5175878 (1992-12-01), Davis et al.
patent: 5210771 (1993-05-01), Schaeffer et al.
patent: 5274627 (1993-12-01), De Santis
patent: 5311504 (1994-05-01), Colamonico et al.
patent: 5406553 (1995-04-01), Smith et al.

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