Gain control methods and systems in an amplifier assembly

Details Gain control methods and systems in an amplifier assembly Gain control methods and systems in an amplifier assembly

2011-06-28

2011-06-28

Choe, Henry K (Department: 2817)

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

C330S279000

Reexamination Certificate

active

07969241

ABSTRACT:
A Variable Gain Amplifier (VGA) amplifies an input signal according to a gain, to produce an amplified signal. A detector module detects a power indicative of a power of the amplified signal. A comparator module compares the detected power to a high threshold, a low threshold and a target threshold intermediate the high and low thresholds. A controller module changes the gain of the VGA so as to drive the detected power in a direction toward the middle threshold when the comparator module indicates the detected power is not between the high and low thresholds.

REFERENCES:
patent: 4066977 (1978-01-01), Chambers et al.
patent: 4159514 (1979-06-01), Kakalec
patent: 4177819 (1979-12-01), Kofsky et al.
patent: 4354216 (1982-10-01), Volta
patent: 4402089 (1983-08-01), Knight et al.
patent: 4796142 (1989-01-01), Libert
patent: 4870372 (1989-09-01), Suter
patent: 4943706 (1990-07-01), Lyall et al.
patent: 5077541 (1991-12-01), Gilbert
patent: 5150123 (1992-09-01), Orlowski et al.
patent: 5432478 (1995-07-01), Gilbert
patent: 5469115 (1995-11-01), Peterzell et al.
patent: 5621355 (1997-04-01), Williams et al.
patent: 5684431 (1997-11-01), Gilbert et al.
patent: 5734974 (1998-03-01), Callaway et al.
patent: 5764655 (1998-06-01), Kirihata et al.
patent: 5774319 (1998-06-01), Carter et al.
patent: 5781766 (1998-07-01), Davis
patent: 5831446 (1998-11-01), So et al.
patent: 6002356 (1999-12-01), Cooper
patent: 6040737 (2000-03-01), Ranjan et al.
patent: 6088806 (2000-07-01), Chee
patent: 6154715 (2000-11-01), Dinteman et al.
patent: 6163862 (2000-12-01), Adams et al.
patent: 6232908 (2001-05-01), Nakaigawa
patent: 6239603 (2001-05-01), Ukei et al.
patent: 6255906 (2001-07-01), Eidson et al.
patent: 6282038 (2001-08-01), Bonaccio et al.
patent: 6288609 (2001-09-01), Brueske et al.
patent: 6357025 (2002-03-01), Tuttle
patent: 6369618 (2002-04-01), Bloodworth et al.
patent: 6377117 (2002-04-01), Oskowsky et al.
patent: 6535013 (2003-03-01), Samaan
patent: 6538507 (2003-03-01), Prentice et al.
patent: 6577196 (2003-06-01), Hart
patent: 6597898 (2003-07-01), Iwata et al.
patent: 6600374 (2003-07-01), Nguyen et al.
patent: 6608524 (2003-08-01), Kawabe et al.
patent: 6621345 (2003-09-01), Matsugatani et al.
patent: 6625433 (2003-09-01), Poirier et al.
patent: 6714036 (2004-03-01), Figueras et al.
patent: 6727759 (2004-04-01), Nguyen et al.
patent: 6769081 (2004-07-01), Parulkar
patent: 6785626 (2004-08-01), Corr
patent: 6798286 (2004-09-01), Dauphinee et al.
patent: 6853315 (2005-02-01), Schiller et al.
patent: 6879816 (2005-04-01), Bult et al.
patent: 7068100 (2006-06-01), Dauphinee et al.
patent: 7183845 (2007-02-01), Dauphinee et al.
patent: 7260377 (2007-08-01), Burns et al.
patent: 7501888 (2009-03-01), Dauphinee et al.
patent: 7791412 (2010-09-01), Dauphinee et al.
patent: 2002/0042256 (2002-04-01), Baldwin et al.
patent: 2002/0131533 (2002-09-01), Koizumi
patent: 2002/0160711 (2002-10-01), Carlson et al.
patent: 2002/0180521 (2002-12-01), Taylor
patent: 2003/0034838 (2003-02-01), Fanous et al.
patent: 2004/0013209 (2004-01-01), Zehavi et al.
patent: 2004/0077326 (2004-04-01), Shi
patent: 2004/0104740 (2004-06-01), Burns et al.
patent: 2004/0105033 (2004-06-01), Dauphinee et al.
patent: 2004/0108866 (2004-06-01), Burns et al.
patent: 2004/0166799 (2004-08-01), Kral
patent: 2004/0189382 (2004-09-01), Dauphinee et al.
patent: 2005/0062491 (2005-03-01), Burns et al.
patent: 2005/0130617 (2005-06-01), Burns et al.
patent: 2005/0208910 (2005-09-01), Burns et al.
patent: 2007/0159244 (2007-07-01), Dauphinee et al.
patent: 2009/0066414 (2009-03-01), Dauphinee et al.
patent: 8203979 (1984-05-01), None
Allen, P. et al., “CMOS Analog Circuit Design”, Saunders College Publishing , 1987, pp. 58-66 and 76-86.
International Search Report for Patent Application No. PCT/US01/21022, issued Aug. 28, 2002, 6 pages.
Johns, D., et al., “Analog Integrated Circuit Design”, John Wiley & Sons, Inc., 1997, pp. 16-39 and 57-60.
Sam, B. “Direct Conversion Receiver for Wide-band CDMA,” Wireless Symposium, pp. 105, (Spring 2000).

Affiliated with

Also associated with

Rating

Gain control methods and systems in an amplifier assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gain control methods and systems in an amplifier assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gain control methods and systems in an amplifier assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2695835