Telecommunications – Receiver or analog modulated signal frequency converter – Plural receivers
Reexamination Certificate
2004-10-15
2011-11-01
Urban, Edward (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Plural receivers
C455S276100, C455S304000
Reexamination Certificate
active
08050640
ABSTRACT:
An improved antenna diversity system is provided. The antenna diversity system has at least two spaced-apart antennas, with each antenna providing a respective antenna signal. The signal(s) may be processed and scaled according to its respective power level. The phase difference is determined between the signals, and the phase difference reduced by using phase rotation. The signals, which are now substantially in-phase, are summed to generate a combined antenna signal.
REFERENCES:
patent: 3593147 (1971-07-01), Gurak et al.
patent: 3641437 (1972-02-01), Gurak et al.
patent: 4752941 (1988-06-01), Takahara et al.
patent: 5263180 (1993-11-01), Hirayama et al.
patent: 5465271 (1995-11-01), Hladik et al.
patent: 5697083 (1997-12-01), Sano
patent: 5757858 (1998-05-01), Black et al.
patent: 6571090 (2003-05-01), Moriyama et al.
patent: 2003/0026365 (2003-02-01), Ho et al.
patent: 2003/0186660 (2003-10-01), Lee
patent: 2003/0189917 (2003-10-01), Sudo
patent: 2005/0078649 (2005-04-01), Tehrani et al.
Avaak, Inc.
de la Cerra Manuel F.
Hu Rui
Urban Edward
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