CA2309507A1 - Method for making security systems more tamper resistant and a security system - Google Patents

Method for making security systems more tamper resistant and a security system Download PDF

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Publication number
CA2309507A1
CA2309507A1 CA 2309507 CA2309507A CA2309507A1 CA 2309507 A1 CA2309507 A1 CA 2309507A1 CA 2309507 CA2309507 CA 2309507 CA 2309507 A CA2309507 A CA 2309507A CA 2309507 A1 CA2309507 A1 CA 2309507A1
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CA
Canada
Prior art keywords
tamper resistant
security system
making
security
reference characteristic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2309507
Other languages
French (fr)
Other versions
CA2309507C (en
Inventor
David Darrell Unterschultz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA 2309507 priority Critical patent/CA2309507C/en
Publication of CA2309507A1 publication Critical patent/CA2309507A1/en
Application granted granted Critical
Publication of CA2309507C publication Critical patent/CA2309507C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G08B29/046—Monitoring of the detection circuits prevention of tampering with detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)

Abstract

A method for making a security system more tamper resistant involving the step of monitoring an electric reference characteristic in a detection circuit of a security system and generating random periodic changes to the electrical reference characteristic in order to detect any tampering with the electric reference characteristic in the detection circuit.
CA 2309507 2000-05-25 2000-05-25 Method for making security systems more tamper resistant and a security system Expired - Lifetime CA2309507C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2309507 CA2309507C (en) 2000-05-25 2000-05-25 Method for making security systems more tamper resistant and a security system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2309507 CA2309507C (en) 2000-05-25 2000-05-25 Method for making security systems more tamper resistant and a security system

Publications (2)

Publication Number Publication Date
CA2309507A1 true CA2309507A1 (en) 2001-11-25
CA2309507C CA2309507C (en) 2003-07-08

Family

ID=4166251

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2309507 Expired - Lifetime CA2309507C (en) 2000-05-25 2000-05-25 Method for making security systems more tamper resistant and a security system

Country Status (1)

Country Link
CA (1) CA2309507C (en)

Also Published As

Publication number Publication date
CA2309507C (en) 2003-07-08

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Effective date: 20200525