Signal detector

Details Signal detector Signal detector

2007-11-20

2007-11-20

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

C324S076480, C365S207000

Reexamination Certificate

active

10144928

ABSTRACT:
A circuit for detecting whether an intermittent clock waveform signal of 50 MHz is received or not includes an offset receiver, a charge pump, a capacitor and a hysteresis comparator. A circuit for detecting whether a random data waveform signal of 500 MHz is received or not includes an offset-less receiver, a transition counter, a delay circuit and an AND circuit. An OR circuit outputs as a signal detection signal a signal indicating the OR operation result of respective outputs of the hysteresis comparator and the AND circuit.

REFERENCES:
patent: 3099800 (1963-07-01), Vinson et al.
patent: 3715518 (1973-02-01), Campbell et al.
patent: 4381563 (1983-04-01), Groom et al.
patent: 4504786 (1985-03-01), Slaughter
patent: 4547727 (1985-10-01), Tsui et al.
patent: 4593379 (1986-06-01), Fourcade et al.
patent: 5300896 (1994-04-01), Suesserman
patent: 5325355 (1994-06-01), Oprescu et al.
patent: 5384769 (1995-01-01), Oprescu et al.
patent: 5461305 (1995-10-01), Kim
patent: 5517134 (1996-05-01), Yaklin
patent: 5563835 (1996-10-01), Oldham
patent: 5737273 (1998-04-01), Fujiwara et al.
patent: 6781905 (2004-08-01), Fujiwara
patent: 7199579 (2007-04-01), Scheller et al.
patent: 2006/0140318 (2006-06-01), Farjad-rad
patent: 6-104460 (1994-04-01), None
patent: 08-331185 (1996-12-01), None
patent: 2002-344540 (2002-11-01), None

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