Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Particular stable state circuit
Patent
1998-01-22
2000-08-29
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Particular stable state circuit
327 74, 327166, 327374, H03K 3356, H03K 1704
Patent
active
06111443&
ABSTRACT:
Generally speaking, steep signal edges are required for the processing of digital signals; however, notably externally supplied signals which are conducted, for example, via long cables are liable to have comparatively flat signal edges. By selecting appropriate switching thresholds, delays between an input signal and an output signal of a circuit can be minimized. The circuit selects the first switching threshold at a low value of the input signal and switches the first threshold value to a second, higher threshold value when the input signal exceeds a further, higher threshold value. Thus, an output signal is generated comparatively quickly after the beginning of the positive-going or negative-going edge of the input signal. This can be realized by switching over the switching threshold of a comparator or by utilizing two comparators. Switching over to the various switching thresholds, or the various comparators, is provided by a further control circuit which may also be driven by the comparators themselves. A particularly high insensitivity to interference is achieved when use is made of two comparators which themselves are constructed as Schmitt triggers.
REFERENCES:
patent: 4479266 (1984-10-01), Eumurian et al.
patent: 4549220 (1985-10-01), Suzuki
patent: 4585952 (1986-04-01), Yamamoto
patent: 4639681 (1987-01-01), Hasegawa
patent: 4700357 (1987-10-01), Ast
patent: 5003196 (1991-03-01), Kawaguchi
patent: 5373400 (1994-12-01), Kovacs
patent: 5418409 (1995-05-01), Kuhn
patent: 5539340 (1996-07-01), Van Leeuwen et al.
patent: 5673282 (1997-09-01), Wurst
"Halbleiter-Schaltungstechnik", Springe-Verlag. 1978. pp. 134, 135, 412-415 .
Eisele Harald
Mores Robert
Biren Steven R.
Callahan Timothy P.
Englund Terry L.
U.S. Philips Corporation
LandOfFree
Accelerated switching by selection of various threshold levels does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Accelerated switching by selection of various threshold levels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Accelerated switching by selection of various threshold levels will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1253737