Diversity receiver

Details Diversity receiver Diversity receiver

2005-09-06

2005-09-06

Le, Amanda T. (Department: 2634)

Pulse or digital communications

Receivers

Interference or noise reduction

C455S273000

Reexamination Certificate

active

06940932

ABSTRACT:
The present invention relates to receivers, and, more particularly, to improved diversity receivers.In some environments, such as those subject to multipath reflection or shadowing, some carriers may be received with low power. In these cases, diversity receivers may provide an improvement of around 3 dB to 6 dB, the latter figure referring to cases where the communication channel is under severe multipath fading and in mobile reception. A diversity receiver effectively comprises two or more separate receivers, or diversity branches, each with its own antenna. Each set of received carriers from each diversity branch is then combined.The present invention provides an improved method and apparatus for receiving multi-carrier signals.

REFERENCES:
patent: 6128355 (2000-10-01), Backman et al.
patent: 6141393 (2000-10-01), Thomas et al.
patent: 6151372 (2000-11-01), Yamamoto
patent: 6512738 (2003-01-01), Namekata et al.
patent: 6654429 (2003-11-01), Li
patent: 2003/0007582 (2003-01-01), Ghazi-Moghadam et al.
patent: 1028556 (2000-08-01), None
patent: 2307830 (1997-06-01), None
patent: 2307831 (1997-06-01), None
patent: 97/08841 (1997-03-01), None

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