E.A.S. tag having a control component with selectively magnetize

Details E.A.S. tag having a control component with selectively magnetize E.A.S. tag having a control component with selectively magnetize

1989-08-09

1990-09-11

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340572, G08B 1324

Patent

active

049566369

ABSTRACT:
A tag for use with an electromagnetic identification system includes a magnetic control component 1, having alternating regions 10, 20 of, respectively, high and medium coercivity material, and an element 30 of magnetically soft material. The element 30 may be polarized so as to deactivate the tag by, for example, selectively demagnetizing the regions 20 of medium coercivity, such as by exposing the tag to an alternating magnetic field having an initial field strength which is intermediate between the coercivity of the regions 10, 20, which may be formed as a striped coating or from a number of discrete magnetic components.

REFERENCES:
patent: 4746908 (1988-05-01), Montean
patent: 4799045 (1989-01-01), Fearon et al.

Affiliated with

Also associated with

Rating

E.A.S. tag having a control component with selectively magnetize does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with E.A.S. tag having a control component with selectively magnetize, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and E.A.S. tag having a control component with selectively magnetize will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1187058