Signal detection circuit with deglitch and method thereof

Details Signal detection circuit with deglitch and method thereof Signal detection circuit with deglitch and method thereof

2008-02-29

2010-11-02

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By pulse width or spacing

C327S077000, C327S058000, C327S065000

Reexamination Certificate

active

07825697

ABSTRACT:
A signal detection circuit is used for detecting signal squelch of a differential input signal to generate a corresponding digital output signal. The signal detection circuit includes: a reference voltage generator for generating a reference voltage of which the common mode voltage tracks the common mode voltage of the input signal; a real-time signal judgment circuit, real-time rectifying and amplifying a difference between the input signal and the reference voltage; and a deglitch circuit, sampling and/or amplifying an output signal of the real-time signal judgment circuit, and transforming sampling results into the digital output signal to reflect signal squelch of the differential input signal.

REFERENCES:
patent: 4101789 (1978-07-01), Ruhnau
patent: 5736875 (1998-04-01), Sakamoto et al.
patent: 5856750 (1999-01-01), Koseki
patent: 6590429 (2003-07-01), Choi et al.

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