Vehicle detector method and system

Details Vehicle detector method and system Vehicle detector method and system

1989-04-04

1991-07-02

Orsino, Joseph A.

Communications: electrical

Vehicle detectors

Environmental or drift compensation

377 9, 340941, G08G 101

Patent

active

050289217

ABSTRACT:
A method of updating the reference count in a period shift measurement vehicle detector permits conditional reference count updating in the No Call direction whenever the sample count minus reference count difference value lies between the upper limit of a jitter/vibration guard and band and a positive freeze reference threshold. Decrementing of the reference count is permitted in the call direction whenever the sample count minus reference count lies in a range from 0 to a negative freeze reference threshold. Variable hysteresis for call
o call signal generation is provided in a single vehicle detector, with the call direction threshold selectable between two values.

REFERENCES:
patent: 3868626 (1975-02-01), Masher
patent: 3943339 (1976-03-01), Koerner et al.
patent: 3989939 (1976-11-01), Koerner
patent: 4131848 (1978-12-01), Battle
patent: 4391119 (1983-07-01), Price et al.
patent: 4491841 (1985-01-01), Clark
patent: 4668951 (1987-05-01), Duley et al.

Affiliated with

Also associated with

Rating

Vehicle detector method and system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vehicle detector method and system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle detector method and system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1250125