Amplifiers – With amplifier condition indicating or testing means
Patent
1998-08-31
2000-04-18
Pascal, Robert
Amplifiers
With amplifier condition indicating or testing means
330 52, 330151, H03G 330, H03F 366
Patent
active
06052023&
ABSTRACT:
A calibration system for a feed forward distortion reduction system periodically uses a pilot signal to calibrate the pilotless feed forward reduction system. In calibrating the feed forward distortion reduction system, the calibration system periodically injects the pilot signal onto a signal path, for example, when no signal is present on the signal path. A portion of the pilot signal on the signal path is provided to a feed forward path of the feed forward distortion reduction system. The pilot signal on the feed forward path is combined with the pilot signal on the signal path, and the calibration system adjusts the relative phase and amplitude between the pilot signal on the feed forward path and the pilot signal on the signal path to achieve the desired combination of the pilot signals. Thus, the calibration system calibrates the feed forward distortion reduction system to provide improved combination of the pilot signals, thereby improving the distortion reduction for the feed forward distortion reduction system.
REFERENCES:
patent: 3922617 (1975-11-01), Denniston et al.
patent: 4580105 (1986-04-01), Myer
patent: 4583049 (1986-04-01), Powell
patent: 4885551 (1989-12-01), Myer
patent: 4926136 (1990-05-01), Olver
patent: 5012490 (1991-04-01), Myer
patent: 5166634 (1992-11-01), Narahashi et al.
patent: 5304945 (1994-04-01), Myer
patent: 5307022 (1994-04-01), Tattersall, Jr. et al.
patent: 5430893 (1995-07-01), Myer
patent: 5455537 (1995-10-01), Larkin et al.
patent: 5508657 (1996-04-01), Behan
patent: 5515000 (1996-05-01), Maruyama et al.
patent: 5610554 (1997-03-01), Anvari
patent: 5619168 (1997-04-01), Myer
patent: 5847603 (1998-12-01), Myer
Garceran Julio A.
Lucent Technologies - Inc.
Nguyen Khanh Van
Pascal Robert
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