Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1997-04-17
1999-05-11
Hofsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
Specific condition
340635, 340649, 324 72, 324457, G08B17/12
Patent
active
059032200
ABSTRACT:
Detection of the existence, magnitude, and frequency of occurrence of a plurality of ESD events is achieved by using an envelope detector to process signals generated by ESD events and received by an antenna. The ESD event detector includes an antenna for producing a signal waveform in response to electromagnetic fields incident thereupon, a demodulator coupled to the antenna for generating an envelope waveform that is related to the envelope of the signal waveform, a threshold window discriminator coupled to the demodulator for generating an indication signal if the envelope detected by the demodulator has a magnitude between a first and a second threshold, and a counter coupled to the threshold window discriminator for counting the number of indication signals received from the threshold window detector.
REFERENCES:
patent: 4249131 (1981-02-01), Owen
patent: 4386315 (1983-05-01), Young et al.
patent: 4631473 (1986-12-01), Honda
patent: 4714915 (1987-12-01), Hascal et al.
patent: 4926285 (1990-05-01), Reinhardt et al.
patent: 4975686 (1990-12-01), Delcourt
patent: 5123102 (1992-06-01), Puckette
patent: 5128622 (1992-07-01), Masuda et al.
patent: 5138380 (1992-08-01), Umeda et al.
patent: 5166624 (1992-11-01), Abernathy
patent: 5182596 (1993-01-01), Nakazawa et al.
patent: 5315255 (1994-05-01), Bettinger
patent: 5359319 (1994-10-01), Campbell et al.
patent: 5376879 (1994-12-01), Schrimpf et al.
patent: 5461369 (1995-10-01), Campbell et al.
patent: 5463379 (1995-10-01), Campbell et al.
patent: 5488301 (1996-01-01), Werner, Jr. et al.
patent: 5509036 (1996-04-01), Nakata
"Electromagnetic Field in the Vicinity of Low Voltage ESD Wave Source: Unipolarity and Ultra-Widewand," M. Honda., 1990 EOS/ESD Symposium Proceeings, pp. 107-110.
"ESD Process Control & Measurement," J. D. Campbell, Reprinted from EMC Test & Design, Sep./Oct. 1992, 5 page copies unnumbered.
"Static Event Detection System," Product Sheet, 3M Company distribution, pp. 1-7.
Jon Min-Chung
Palazzo Vito
Bartholomew Steven R.
Hofsass Jeffery A.
Lucent Technologies - Inc.
Pham Toan N.
LandOfFree
Electrostatic discharge event detector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrostatic discharge event detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrostatic discharge event detector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-248252