Method and device for signal amplitude detection

Details Method and device for signal amplitude detection Method and device for signal amplitude detection

2007-06-26

2007-06-26

Benson, Walter (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S606000

Reexamination Certificate

active

10531400

ABSTRACT:
A method and a device (1) for detecting signal amplitudes by removing any DC component from the signal and then shifting the signal by a shift amount so as to produce a shifted signal having a first signal level equal to a reference level (Vref). The shift amount provides an indication of the amplitude of the signal. To this end, the device (1) includes a decoupling circuit (2), a shift circuit (3) and an output terminal (4). Optionally the device further includes a differential amplifier (5) coupled to receive the reference level (Vref) and an indication of the power of the shifted signal, and a signal power determination circuit (6) coupled between the shift circuit (3) and the differential amplifier (5).

REFERENCES:
patent: 2798198 (1957-07-01), Dauphinee
patent: 4363977 (1982-12-01), Tsuda et al.
patent: 6324232 (2001-11-01), Mirfakhraei
patent: 6462558 (2002-10-01), Taurand

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