EP 1023707 A1 20000802 - TAMPER RESPONDENT ENCLOSURE
Title (en)
TAMPER RESPONDENT ENCLOSURE
Title (de)
SICHERHEITSVERSCHLUSS
Title (fr)
ENCEINTE SENSIBLE A TOUTE TENTATIVE DE VIOLATION
Publication
Application
Priority
- GB 9803125 W 19981019
- GB 9721932 A 19971017
Abstract (en)
[origin: WO9921142A1] A tamper respondent enclosure (10) comprises a wall including at least two layers (34, 35; 34, 24). A first layer of the wall (34) comprises a sheet of insulating material (36) having lines of conductive material (38, 39) on first and second sides thereof, the lines forming part of a sensor circuit. A detector (16) is provided part of a sensor circuit. A detector (16) is provided for detecting an interruption in the circuit. A second layer of the wall (35; 24) comprises an area of conductive material (40, 41; 24) separated from the lines (38, 39) by insulating material. The detector (16) will also detect an electrical connection between the lines and the conductive area. The layers of the wall are arranged such that, at any point in the wall, the wall section includes at least one of the lines and the conductive area.
IPC 1-7
IPC 8 full level
G08B 13/22 (2006.01); G08B 13/12 (2006.01)
CPC (source: EP)
G08B 13/128 (2013.01)
Citation (search report)
See references of WO 9921142A1
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
WO 9921142 A1 19990429; AU 9453598 A 19990510; CA 2306101 A1 19990429; EP 1023707 A1 20000802; GB 9721932 D0 19971217; JP 2001521231 A 20011106
DOCDB simple family (application)
GB 9803125 W 19981019; AU 9453598 A 19981019; CA 2306101 A 19981019; EP 98947701 A 19981019; GB 9721932 A 19971017; JP 2000517388 A 19981019