Method of continuously calibrating the gain for a multi-path...

Details Method of continuously calibrating the gain for a multi-path... Method of continuously calibrating the gain for a multi-path...

2005-11-15

2009-12-22

Odom, Curtis B (Department: 2611)

Pulse or digital communications

Transceivers

Modems

C375S271000, C375S345000, C332S127000

Reexamination Certificate

active

07636386

ABSTRACT:
A multiple path angle modulator includes a closed secondary loop added to a main control loop to automatically adjust a scaling factor related to high frequency gain. The main control loop is configured as a primary path to process the low frequency portion of the angle modulation signal, and the secondary loop is configured as an auxiliary path to process the high frequency portions of the angle modulation signal. The secondary loop senses calibration information and uses it to continuously calibrate the gain within the modulation loop in real time while the system performs its primary operation, thereby eliminating the need for a system shut down or calibration specific timing, such as a lapse time, to balance the modulation paths. Calibration is continuously performed as a background process. The angle modulator is applicable to all modulation type systems.

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patent: WO 99/07065 (1999-02-01), None
patent: WO 01/20774 (2001-03-01), None

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