Global Patent Index - EP 1023707 A1

EP 1023707 A1 2000-08-02 - TAMPER RESPONDENT ENCLOSURE

Title (en)

TAMPER RESPONDENT ENCLOSURE

Title (de)

SICHERHEITSVERSCHLUSS

Title (fr)

ENCEINTE SENSIBLE A TOUTE TENTATIVE DE VIOLATION

Publication

EP 1023707 A1 (EN)

Application

EP 98947701 A

Priority

  • GB 9803125 W
  • GB 9721932 A

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 (main, further and additional classification)

G08B 13/12

IPC 8 full level (invention and additional information)

G08B 13/22 (2006.01); G08B 13/12 (2006.01)

CPC (invention and additional information)

G08B 13/128 (2013.01)

Citation (search report)

See references of WO 9921142A1

Designated contracting state (EPC)

DE ES FR GB IT SE

EPO simple patent family

WO 9921142 A1 19990429; AU 9453598 A 19990510; CA 2306101 A1 19990429; EP 1023707 A1 20000802; GB 9721932 D0 19971217; JP 2001521231 A 20011106

INPADOC legal status


2002-07-24 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020118

2001-10-24 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010907

2000-08-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000515

2000-08-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB IT SE