Wireless receiver apparatus provided with gain control...

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation

Reexamination Certificate

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Details

C455S234100, C455S241100, C455S250100, C330S278000

Reexamination Certificate

active

07920840

ABSTRACT:
In a wireless receiver apparatus including a gain control amplifier for controlling a gain of a reception signal, a maintaining device compulsorily maintains the gain of the gain control amplifier at a predetermined fixed value only in a predetermined specified interval. The maintaining device includes a latch circuit for maintaining a gain set value immediately prior to the specified interval. A start timing of the specified interval is determined by an edge of a predetermined timer start signal, and a duration of the specified interval is determined on the basis of a count of a predetermined timer clock signal and a count of a predetermined timer count set bus signal.

REFERENCES:
patent: 6205189 (2001-03-01), Ha
patent: 6621345 (2003-09-01), Matsugatani et al.
patent: 6798286 (2004-09-01), Dauphinee et al.
patent: 6823025 (2004-11-01), Lee et al.
patent: 7005922 (2006-02-01), Oshima et al.
patent: 7046078 (2006-05-01), Nguyen et al.
patent: 7076223 (2006-07-01), Matsugatani et al.
patent: 7495513 (2009-02-01), Dally et al.
patent: 2001-292189 (2001-10-01), None
patent: 2002-290177 (2002-10-01), None
patent: 2004-23708 (2004-01-01), None

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