Envelope detector with DC level shifting

Details Envelope detector with DC level shifting Envelope detector with DC level shifting

2007-11-06

2007-11-06

Kinkead, Arnold (Department: 2817)

Demodulators

Amplitude modulation demodulator

C329S365000, C329S366000, C455S214000, C455S336000

Reexamination Certificate

active

10924699

ABSTRACT:
An envelope detector that does not generate an undesirable DC offset at its DC output signal. An envelope detector according to the present teachings includes a circuit for performing a DC level shift on an AC input signal applied to the envelope detector such that a magnitude of the DC level shift is proportional to a peak envelope of the AC input signal.

REFERENCES:
patent: 6265940 (2001-07-01), Adachi

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