Telecommunications – Transmitter – Power control – power supply – or bias voltage supply
Reexamination Certificate
2007-03-13
2007-03-13
Gauthier, Gerald (Department: 2614)
Telecommunications
Transmitter
Power control, power supply, or bias voltage supply
C455S234100, C455S423000, C455S425000, C323S222000, C324S095000, C330S285000, C375S297000
Reexamination Certificate
active
09952524
ABSTRACT:
The present invention provides an efficient way to detect the transmit power provided by an amplifier. A power sense signal indicative of the transmit power of the amplifier is generated and fed back to a control system, which will react accordingly to control input signal levels, bias, gain, or a combination thereof for the amplifier in traditional fashion to control transmit power. Detection circuitry representing a scaled version of the amplifier receives the radio frequency (RF) drive in parallel with the amplifier to provide a scaled output signal. The scaled output signal is rectified and filtered to generate the power sense signal.
REFERENCES:
patent: 3109992 (1963-11-01), Elliott
patent: 3449680 (1969-06-01), Schilb et al.
patent: 4122400 (1978-10-01), Medendorp et al.
patent: 4233474 (1980-11-01), Hishinuma et al.
patent: 4523155 (1985-06-01), Walczak et al.
patent: 4924194 (1990-05-01), Opas et al.
patent: 5122760 (1992-06-01), Nishijima
patent: 5126688 (1992-06-01), Nakanishi et al.
patent: 5138274 (1992-08-01), Nakanishi et al.
patent: 5196806 (1993-03-01), Ichihara
patent: 5337006 (1994-08-01), Miyazaki
patent: 5367268 (1994-11-01), Baba
patent: 5629648 (1997-05-01), Pratt
patent: 5678209 (1997-10-01), Strakovsky
patent: 5854971 (1998-12-01), Nagoya et al.
patent: 5898337 (1999-04-01), Inahasi
patent: 5923153 (1999-07-01), Liu
patent: 5956627 (1999-09-01), Goos
patent: 6084920 (2000-07-01), Ferdinandsen
patent: 6108527 (2000-08-01), Urban et al.
patent: 6211735 (2001-04-01), Luu
patent: 6262630 (2001-07-01), Eriksson
patent: 6272336 (2001-08-01), Appel et al.
patent: 6434374 (2002-08-01), Muterspaugh
patent: 6528983 (2003-03-01), Augustine
patent: 6624702 (2003-09-01), Dening
patent: 6822515 (2004-11-01), Ichitsubo et al.
patent: 0 527 617 (1993-07-01), None
patent: WO 01/56176 (2001-08-01), None
Motorola datasheet: “Advanced Mobile Phone System,” 68P81039E25-A, Aug. 1979.
Gauthier Gerald
RF Micro Devices, Inc.
Withrow & Terranova , PLLC
LandOfFree
Amplifier power detection circuitry does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Amplifier power detection circuitry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier power detection circuitry will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3761015