Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Reexamination Certificate
2007-07-10
2007-07-10
Le, Lana N. (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
C455S234100, C455S245100
Reexamination Certificate
active
10869761
ABSTRACT:
A gain processor circuit calculates a first AGC signal for a first one of a number of receive chains, each including a gain-controlled front-end circuit, and derives one or more additional AGC signals from the calculation of that first AGC signal for any remaining chains. The first AGC signal may be calculated by tracking received power for one or more of the receive chains. An AGC signal may be derived for each additional receive chain by assuming that its received power is the same, i.e., the same AGC command is used. Alternatively, an additional AGC command is derived based on a scaling value determined from a ratio of received powers for the first and additional receive chains. Such powers may be expressed as channel tap powers, which may be available from other circuit elements associated with signal demodulation. Alternatively, the scaling value further incorporates received interference and/or noise powers.
REFERENCES:
patent: 3934204 (1976-01-01), Hill
patent: 4255816 (1981-03-01), Grunza et al.
patent: 4641141 (1987-02-01), Masak
patent: 5768698 (1998-06-01), Kinoshita
patent: 6201954 (2001-03-01), Soliman
patent: 6628932 (2003-09-01), Myers
patent: 6748200 (2004-06-01), Webster et al.
patent: 6799024 (2004-09-01), Wang et al.
patent: 7116955 (2006-10-01), Schaffer et al.
patent: 2002/0061738 (2002-05-01), Simmons et al.
patent: 2002/0181627 (2002-12-01), Wengler
patent: 2003/0100281 (2003-05-01), Zipper
patent: 2003/0114126 (2003-06-01), Wang et al.
patent: 2003/0152173 (2003-08-01), Strolle et al.
patent: 2003/0169706 (2003-09-01), Poegel et al.
patent: 2004/0152429 (2004-08-01), Haub et al.
patent: 2005/0143117 (2005-06-01), Jalloul et al.
patent: 0859462 (1998-08-01), None
patent: 1 091 447 (2001-04-01), None
patent: 1209870 (2002-05-01), None
patent: 04-249431 (1992-09-01), None
patent: 05235861 (1993-09-01), None
patent: 08-223098 (1996-08-01), None
patent: 2002-217914 (2002-08-01), None
patent: WO 02/054625 (2002-07-01), None
Coats & Bennett P.L.L.C.
Telefonaktiebolaget LM Ericsson (publ)
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