Performing a coordinate rotation digital computer (CORDIC)...

Details Performing a coordinate rotation digital computer (CORDIC)... Performing a coordinate rotation digital computer (CORDIC)...

2006-09-28

2008-10-14

Mis, David (Department: 2817)

Demodulators

Amplitude modulation demodulator

Input signal combined with local oscillator or carrier...

C455S337000

Reexamination Certificate

active

07436252

ABSTRACT:
In one aspect, the present invention includes a method for receiving an amplitude modulation (AM) signal in a receiver and performing a coordinate rotation digital computer (CORDIC) operation in obtaining a demodulated AM signal. The demodulated AM signal may be obtained from a magnitude output of the CORDIC operation or as a real output of a multiplication between a complex baseband signal and a demodulating carrier signal generated in a feedback loop.

REFERENCES:
patent: 5561716 (1996-10-01), Kasser et al.
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.
U.S. Appl. No. 11/529,066, filed Sep. 28, 2006, entitled “Automatic Volume Control For Amplitude Modulated Signals,” by Dana Taipale and Javier Elenes.

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