Simplified monitoring apparatus for sensors in motor vehicles

Details Simplified monitoring apparatus for sensors in motor vehicles Simplified monitoring apparatus for sensors in motor vehicles

1980-12-22

1983-10-04

Chin, Gary

Boots, shoes, and leggings

307234, 340658, H03K 520

Patent

active

044082894

ABSTRACT:
The leading edge of each pulse of an incoming signal sequence starts a first monostable multivibrator whose period is equal to the period of the pulse sequence when the pulse sequence has the desired frequency. The input signal sequence and the output signal from the multivibrator are applied to two inputs of an exclusive OR gate. The latter furnishes an output signal corresponding to the difference in pulse width between the signal applied to the two inputs. The leading edge of the difference signal then starts a second monostable multivibrator whose pulse width corresponds to the maximum allowable frequency deviation. The output signal of the second monostable multivibrator is applied to an inverting input of an AND gate. The direct input of the AND gate receives the difference signal. The AND gate, therefore, only furnishes an output signal when the difference signal has a greater pulse width than the output signal of the second multivibrator, i.e. when the frequency deviation in the incoming signal sequence exceeds the maximum permissible frequency deviation.

REFERENCES:
patent: 3600688 (1971-08-01), Booth
patent: 3778727 (1973-12-01), Williams
patent: 3803599 (1974-04-01), McLean et al.
patent: 3906379 (1975-09-01), Tuhro
patent: 3943382 (1976-03-01), Hermansdorfer et al.
patent: 3950705 (1976-04-01), Fuerherm
patent: 4031464 (1977-06-01), Norberg
patent: 4070618 (1978-01-01), Thomas
patent: 4072927 (1978-02-01), O'Neil
patent: 4222045 (1980-09-01), Cholin

Affiliated with

Also associated with

Rating

Simplified monitoring apparatus for sensors in motor vehicles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Simplified monitoring apparatus for sensors in motor vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simplified monitoring apparatus for sensors in motor vehicles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-977003