Integrated level detector

Details Integrated level detector Integrated level detector

1996-02-28

1996-10-08

Beausoliel, Jr., Robert W.

Excavating

360 39, H03M 1300

Patent

active

055638937

ABSTRACT:
A digital loss-of-signal ("LOS") detector having a trough circuit and a smearing circuit is described. The trough circuit generates a logic output whenever an incoming communication signal is within a predefined voltage range. The output of the trough circuit is applied to the smearing circuit, which generates an LOS output whenever the output of the trough circuit remains at a predefined logic level for a predetermined length of time. In a second embodiment, a state machine is coupled to the output of the smearing circuit, the trough circuit, and a clock, the state machine generating the LOS indication if the output from the smearing circuit remains at the predetermined logic level for at least a predetermined number of clock cycles.

REFERENCES:
patent: 4439848 (1984-03-01), Ceshkovsky et al.
patent: 4545055 (1985-10-01), Patel
patent: 4716323 (1987-12-01), Wada et al.
patent: 4727592 (1988-02-01), Okada et al.
patent: 4750179 (1988-06-01), Davidon et al.
patent: 4800564 (1989-01-01), DeFazio et al.
patent: 4813044 (1989-03-01), Kumar et al.
patent: 4841232 (1989-06-01), Graham et al.
patent: 4893002 (1990-01-01), Kollanyi
patent: 4922493 (1990-05-01), Kase
patent: 4946244 (1990-08-01), Schembri
patent: 4962509 (1990-10-01), Itoh
patent: 5055707 (1991-10-01), Beard
patent: 5138636 (1992-08-01), Bardin
patent: 5144469 (1992-09-01), Brahms et al.
patent: 5259041 (1993-11-01), Kato et al.
patent: 5267325 (1993-11-01), Barron et al.
patent: 5293384 (1994-03-01), Keeley et al.
patent: 5315597 (1994-05-01), Yang et al.
patent: 5400341 (1995-03-01), Makino et al.
patent: 5428471 (1995-06-01), McDermott
Schilling et al. "Electronic Circuit", Mc Graw Hill, textbook, 1989.
Esman et al. "Feedback Induced Microwave Signal Dropout in 0.83 .mu.m Fibre-optic links".

Affiliated with

Also associated with

Rating

Integrated level 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 Integrated level detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated level detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-62900