Enclosure tamper detection and protection

Details Enclosure tamper detection and protection Enclosure tamper detection and protection

2007-04-20

2008-12-23

Bugg, George A (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S561000, C340S565000, C340S568100, C340S643000

Reexamination Certificate

active

07468664

ABSTRACT:
A tamper detecting enclosure arrangement for enclosures containing an interior space in which a protected item is positioned having a magnetoresistive sensing memory storage cell positioned in or near the protected item in the enclosure having a two state offset magnetoresistance versus externally applied magnetic field. A magnet is positioned at a selected separation distance from the magnetoresistive sensing memory storage cell to thereby provide a magnetic field about the magnetoresistive sensing memory storage cell if said enclosure has not been opened in such a manner as to result in substantially increasing said separation distance.

REFERENCES:
patent: 3971916 (1976-07-01), Moreno
patent: 4401944 (1983-08-01), Narimatsu et al.
patent: 4860351 (1989-08-01), Weingart
patent: 5117457 (1992-05-01), Comerford et al.
patent: 5159629 (1992-10-01), Double et al.
patent: 5233505 (1993-08-01), Chang et al.
patent: 5602381 (1997-02-01), Hoshino et al.
patent: 5675319 (1997-10-01), Rivenberg et al.
patent: 5790670 (1998-08-01), Bramlett
patent: 5910774 (1999-06-01), Capriotti et al.
patent: 6233339 (2001-05-01), Kawano et al.
patent: 6264108 (2001-07-01), Baentsch
patent: 6310549 (2001-10-01), Loftin et al.
patent: 6462979 (2002-10-01), Schlosser et al.
patent: 6501390 (2002-12-01), Chainer et al.
patent: 6592034 (2003-07-01), Millard et al.
patent: 6753775 (2004-06-01), Auerbach et al.
patent: 6774807 (2004-08-01), Lehfeldt et al.
patent: 6778083 (2004-08-01), Auerbach et al.
patent: 6784796 (2004-08-01), Johnston et al.
patent: 6891474 (2005-05-01), Fletcher
patent: 2001/0030839 (2001-10-01), Zhong et al.
patent: 2001/0033012 (2001-10-01), Kömmerling et al.
patent: 2003/0212871 (2003-11-01), Suzuki et al.
patent: 2004/0134994 (2004-07-01), Zaba et al.
patent: 2005/0047543 (2005-03-01), Sandstrom
patent: 2005/0051624 (2005-03-01), Kipp et al.
patent: 2005/0066168 (2005-03-01), Walmsley
patent: 2005/0151777 (2005-07-01), Silverbrook
patent: 2006/0092020 (2006-05-01), Wilson et al.
patent: 2006/0108668 (2006-05-01), Knudsen
patent: 2006/0146597 (2006-07-01), Lenssen et al.
patent: 2006/0179490 (2006-08-01), Lenssen et al.
patent: 2008/0088996 (2008-04-01), Bonvalot et al.

Affiliated with

Also associated with

Rating

Enclosure tamper detection and protection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Enclosure tamper detection and protection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enclosure tamper detection and protection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4051606