Method and apparatus in a wireless communication device for...

Details Method and apparatus in a wireless communication device for... Method and apparatus in a wireless communication device for...

2005-04-26

2005-04-26

Urban, Edward F. (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C455S232100, C455S250100

Reexamination Certificate

active

06885852

ABSTRACT:
A power measurement element (106) measures (302) the wide-band received signal power of a receiver (102), and a wide-band AGC system (108) transfers (306) receiver gain control from an on-channel AGC system (110) to the wide-band AGC system, when the wide-band received signal power exceeds a pre-programmed threshold for longer than a pre-programmed delay time. The wide-band AGC system is arranged and programmed to decrease (308) a front-end gain of the receiver through a plurality of gain steps of a pre-programmed size (208) applied at a pre-programmed rate until the received wide-band signal power falls below the pre-programmed threshold.

REFERENCES:
patent: 5563916 (1996-10-01), Scarpa
patent: 5742899 (1998-04-01), Blackburn et al.
patent: 5917865 (1999-06-01), Kopmeiners et al.
patent: 6670901 (2003-12-01), Brueske et al.

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