IP Library Granted Patent US 7,098,792
Granted Patent B1
US 7,098,792 · App. 10/844,036 · Granted Aug 29, 2006

Tamper proof system and method

Assignee: RF Technologies, Inc.
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Quick Facts
Patent No.
US 7,098,792
App. No.
10/844,036
Granted
Aug 29, 2006
Kind
B1
Abstract

A monitoring, tracking or security system includes a tamper detection system or employs a tamper detection method. A tamper detection system can include a member having a first surface and a second surface, the second surface being attached to a piece of equipment. The sensing element is disposed on the first surface of the member. The housing is attached to the first surface. A circuit is electrically coupled to the sensing element. The circuit provides an alarm signal in response to the sensing element being distorted.

Claims (30)

1. A tamper detection system for an electronic monitoring or security device, the system comprising:

a member having a first surface and a second surface, the second surface for being attached to a piece of equipment;

a sensing element disposed on the first surface of the member;

a housing attached to the first surface; and

a circuit electrically coupled to the sensing element, the circuit providing an alarm signal in response to the sensing element being distorted, the circuit being disposed within the housing, the housing containing at least one circuit board and IC.

2. The tamper detection system of claim 1 , further comprising a first adhesive disposed on the first surface, the first adhesive being used to attach the first surface to the housing.

3. The tamper detection system of claim 2 , further comprising a second adhesive disposed on the second surface, the second surface being attached to the piece of equipment by the second adhesive.

4. The tamper detection system of claim 3 , wherein the first adhesive has a first bond between the first adhesive and the housing and the second adhesive has a second bond between the second adhesive and the piece of equipment, the first bond being weaker than the second bond.

5. The tamper detection system of claim 1 , wherein the member is a high bond coated acrylic foam tape.

6. The tamper detection system of claim 1 , wherein the sensing element is a conductive trace.

7. The tamper detection system of claim 6 , wherein the conductive trace includes an S-shaped portion.

8. The tamper detection system of claim 7 , wherein the conductive trace is a foil material.

9. The tamper detection system of claim 7 , wherein the circuit is coupled to the sensing element by a plurality of contacts.

10. The tamper detection system of claim 1 , wherein the circuit determines if the resistance associated with the sensing element has changed.

11. An electronic monitoring or security system, the system comprising:

an electronic device for monitoring or securing a person or thing, the electronic device being an RF device in a housing, the housing containing a circuit board and an IC;

a member having a first surface and a second surface, the second surface being attached to the person or thing;

a sensing element disposed on the first surface of the member, the housing of the electronic device being attached to the first surface; and

a circuit electrically coupled to the sensing element, the circuit providing an alarm signal in response to the sensing element being distorted.

12. The electronic monitoring or security system of claim 11 , wherein the circuit is disposed in the electronic device.

13. The electronic monitoring or security system of claim 11 , wherein the member is flexible and the sensing element is a conductive trace disposed on the member.

14. The electronic monitoring or security system of claim 11 , further comprising:

a monitoring center, wherein the electronic device provides the alarm signal to the monitoring center.

15. The electronic monitoring or security system of claim 11 , further comprising:

a first adhesive disposed on the first surface, the first adhesive being used to attach the first surface to the electronic device;

a second adhesive disposed on the second surface, the second surface being attached to the person or thing by the second adhesive, wherein the first adhesive has a first bond between the first adhesive and the housing and the second adhesive has a second bond between the second adhesive and the person or thing, the first bond being weaker than the second bond.

16. A tamper detection system for an electronic monitoring or security device, the system comprising:

a housing for being attached to a piece of equipment by a means for attaching, the housing holding a circuit board and IC associated with an electronic monitoring or security device or tag, the housing being configured so that the electronic monitoring or security device or tag covers the means for attaching when held in the housing;

a sensing element disposed on the housing between the electronic monitoring or security device or tag and the housing; and

a circuit disposed with the electronic monitoring or security device or tag is electrically coupled to the sensing element, the circuit providing an alarm signal in response to the sensing element being uncoupled from the electronic monitoring or security device or tag.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2013
From: PINPOINT TECHNOLOGIES INC.
To: RF TECHNOLOGIES, INC.
Reel/Frame 029981/0561 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 24, 2011
From: RF TECHNOLOGIES, INC.
To: PINPOINT TECHNOLOGIES INC.
Reel/Frame 025683/0169 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 5, 2004
From: AHLF, PAUL R.; HAENSGEN, GREGG J.; HURRLE, DAN L.; GILBERTSON, MARK A.; NITZ, WILLIAM J.
To: RF TECHNOLOGIES, INC.
Reel/Frame 015220/0166 →
Continuity (1)
Provisional Application 6047046700 · May 14, 2003