Diversity receiver

Details Diversity receiver Diversity receiver

1995-11-29

1998-06-02

Au, Amelia

Telecommunications

Receiver or analog modulated signal frequency converter

Plural receivers

455273, H04B 708

Patent

active

057616132

ABSTRACT:
A diversity receiver for receiving digital signals, particularly, but not exclusively, digital private mobile radio signals, comprises first and second reception branches (10,12) which frequency down convert respective input signals to the zero IF signals which are digitized and combined in a maximal ratio combiner (22) and the result is applied to a digital demodulator (23). The first and second branches are asymmetrical with the first branch (10) being fully specified and the second branch (12) being deliberately degraded relative to the first branch (10).

REFERENCES:
patent: 3383599 (1968-05-01), Miyagi
patent: 4715048 (1987-12-01), Masamura
patent: 4849990 (1989-07-01), Ikegami et al.
patent: 5031193 (1991-07-01), Atkinson et al.
patent: 5335251 (1994-08-01), Onishi et al.
patent: 5461646 (1995-10-01), Anvari
patent: 5481570 (1996-01-01), Winters
patent: 5504786 (1996-04-01), Gardner
patent: 5553102 (1996-09-01), Jasper et al.

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