Demodulation method and arrangement

Details Demodulation method and arrangement Demodulation method and arrangement

1999-04-01

2000-06-13

Mis, David

Demodulators

Phase shift keying or quadrature amplitude demodulator

329300, 329318, 329349, 329353, 375346, 375349, 375350, H03D 300, H04L 2700

Patent

active

060754095

ABSTRACT:
A method for demodulating a radio frequency signal having a frequency, by oscillating a demodulator at a frequency different from the signal frequency, and measuring a DC offset value at this different frequency, the DC offset value being associated with interference. Then the demodulator is oscillated at the signal, thereby providing a demodulated signal. The DC offset value is subtracted from the demodulated signal in order to provide a demodulated signal with a substantially reduced DC component. The demodulated signal is then monitored for further DC offset components, and these further DC offset components are subtracted from the demodulated signal.

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patent: 5724653 (1998-03-01), Baker et al.
patent: 5881376 (1999-03-01), Lundberg et al.
patent: 5953643 (1999-09-01), Speake et al.
patent: 6009126 (1999-12-01), Van Bezooijen

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