Field generation and reception system for electronic article sur

Details Field generation and reception system for electronic article sur Field generation and reception system for electronic article sur

1990-04-05

1991-04-02

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340572, G08B 1324

Patent

active

050050010

ABSTRACT:
An electronic surveillance system includes a signal generator for generating a magnetic field, a signal receiver within the influence of the magnetic field, and a ferromagnetic marker adapted to pass in the field for detection. The signal received includes an arrangement for generating a non-rotating field at a first frequency, and a rotating field at a second frequency that is lower than the first frequency.

REFERENCES:
patent: 3747086 (1973-07-01), Peterson
patent: 3983552 (1976-09-01), Bakeman, Jr. et al.
patent: 4139844 (1979-02-01), Reeder
patent: 4710752 (1987-12-01), Cordery
patent: 4872018 (1989-10-01), Feltz et al.

Affiliated with

Also associated with

Rating

Field generation and reception system for electronic article sur does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Field generation and reception system for electronic article sur, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Field generation and reception system for electronic article sur will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-328838