Wireless terminal device

Details Wireless terminal device Wireless terminal device

2005-12-27

2005-12-27

Fan, Chieh M. (Department: 2638)

Pulse or digital communications

Receivers

Automatic gain control

C375S316000, C455S245100

Reexamination Certificate

active

06980610

ABSTRACT:
A level of a base band signal at an input side of a variable gain amplification circuit is detected by a logarithmic amplifier having a wide input voltage range at a start of an operation, a control unit then performs a coarse feedforward control on a gain of the variable gain amplifier based on the detected level and finds a level of an output of an A/D converter by a mean square deriving circuit and inputs the resulting signal to the control unit. Then the control unit performs a fine feedback control on the variable gain amplifier based on the detected level.

REFERENCES:
patent: 5095536 (1992-03-01), Loper
patent: 5204976 (1993-04-01), Baldwin et al.
patent: 5748681 (1998-05-01), Comino et al.
patent: 5787126 (1998-07-01), Itoh et al.
patent: 6163685 (2000-12-01), Dilling et al.
patent: 6212244 (2001-04-01), Davidovici et al.
patent: 0 831 663 (1998-03-01), None
patent: 61-169030 (1986-07-01), None
patent: 63-67024 (1988-03-01), None
patent: 4-189035 (1992-07-01), None
patent: 6-260861 (1994-09-01), None
patent: 10-51252 (1998-02-01), None
patent: 10-56343 (1998-02-01), None

Affiliated with

Also associated with

Rating

Wireless terminal device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wireless terminal device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wireless terminal device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3496262