Automatic volume control for amplitude modulated signals

Details Automatic volume control for amplitude modulated signals Automatic volume control for amplitude modulated signals

2006-09-28

2009-08-04

Nguyen, Tony T (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Local control of receiver operation

C455S260000, C455S309000

Reexamination Certificate

active

07570933

ABSTRACT:
In one aspect, the present invention includes an automatic volume control (AVC) circuit to receive a demodulated signal and provide an output signal at a substantially constant volume. The circuit may be implemented in hardware, software, and/or firmware to perform digital demodulation, programmable amplification, and high pass filtering to provide a substantially constant volume output.

REFERENCES:
U.S. Appl. No. 11/529,076, filed Sep. 29, 2006, entitled “Performing A Coordinate Rotation Digital Computer (CORDIC) Operation For Amplitude Modulation (AM) Demodulation,” by Dana Taipale and Javier Elenes.
U.S. Appl. No. 11/396,097, filed Mar. 31, 2006, entitled “Transceiver Having Multiple Signal Processing Modes Of Operation,” by Lawrence Der et al.

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