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Class Information
Number: 332/157
Name: Modulators > Amplitude modulator > Percent modulation control or automatic amplitude control of carrier or modulating signal > Average carrier amplitude controlled by modulating signal
Description: Subject matter in which the average unmodulated carrier amplitude is adjusted to reflect the average modulating signal amplitude.

Patents under this class:

Patent Number Title Of Patent Date Issued
7933320 Communication system using length shift keying modulation method Apr. 26, 2011
7382208 Operating method for the resonant operation of high-pressure lamps in longitudinal mode, and an associated system and electronic ballast Jun. 3, 2008
6937108 Methods and apparatus for offset chirp modulation Aug. 30, 2005
5896182 Amplitude modulator Apr. 20, 1999
5661442 Amplitude control system having parallel integrating signal paths Aug. 26, 1997
5054116 Feed-forward automatic level control circuit for a high-frequency source Oct. 1, 1991
4864635 Amplitude modulated broadcast transmitter Sep. 5, 1989
4633512 Amplitude-modulated transmitter with controlled carrier value Dec. 30, 1986

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