SE9202706D0 - A PREALARM SYSTEM FOR BURGLAR-PROOF ALARM - Google Patents

A PREALARM SYSTEM FOR BURGLAR-PROOF ALARM

Info

Publication number
SE9202706D0
SE9202706D0 SE19929202706A SE9202706A SE9202706D0 SE 9202706 D0 SE9202706 D0 SE 9202706D0 SE 19929202706 A SE19929202706 A SE 19929202706A SE 9202706 A SE9202706 A SE 9202706A SE 9202706 D0 SE9202706 D0 SE 9202706D0
Authority
SE
Sweden
Prior art keywords
circuit
signal
alarm
flashing
light
Prior art date
Application number
SE19929202706A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE510719C3 (en
SE9202706L (en
SE510719C2 (en
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
Priority to US07/848,199 priority Critical patent/US5216407A/en
Application filed filed Critical
Priority to SE9202706A priority patent/SE510719C2/en
Publication of SE9202706D0 publication Critical patent/SE9202706D0/en
Priority to GB9220157A priority patent/GB2271009B/en
Publication of SE510719C3 publication Critical patent/SE510719C3/en
Publication of SE9202706L publication Critical patent/SE9202706L/en
Publication of SE510719C2 publication Critical patent/SE510719C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
    • B60R25/104—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device characterised by the type of theft warning signal, e.g. visual or audible signals with special characteristics

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Burglar Alarm Systems (AREA)
  • Alarm Systems (AREA)

Abstract

The pre-alarm system is provided for an anti-theft alarm where a signal from a displacement/vibration detector is picked up by a one-shot timer circuit. If no other activation signal is picked up after the first signal is received, a main control alarm circuit is activated for driving a siren circuit to generate a short chirp sound as an audible warning. A flashing circuit emits a light signal for a preset period of time as a visible warning. If the number of activation signals received subsequent to the first are greater than a predetermined threshold number, or the activation signal continues for a predetermined period of time, the main control alarm circuit is activated for driving, the siren circuit to give a normal audible signal alarm, and both, the flashing circuit for flashing a light and the dome light control to provide visible signals.
SE9202706A 1992-03-10 1992-09-17 Pre-alarm system for antitheft alarm SE510719C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US07/848,199 US5216407A (en) 1992-03-10 1992-03-10 Prealarm system for an anti-theft alarm
SE9202706A SE510719C2 (en) 1992-09-17 1992-09-17 Pre-alarm system for antitheft alarm
GB9220157A GB2271009B (en) 1992-03-10 1992-09-24 Anti-theft alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9202706A SE510719C2 (en) 1992-09-17 1992-09-17 Pre-alarm system for antitheft alarm

Publications (4)

Publication Number Publication Date
SE9202706D0 true SE9202706D0 (en) 1992-09-17
SE510719C3 SE510719C3 (en) 1994-03-18
SE9202706L SE9202706L (en) 1994-03-18
SE510719C2 SE510719C2 (en) 1999-06-14

Family

ID=20387219

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9202706A SE510719C2 (en) 1992-03-10 1992-09-17 Pre-alarm system for antitheft alarm

Country Status (1)

Country Link
SE (1) SE510719C2 (en)

Also Published As

Publication number Publication date
SE9202706L (en) 1994-03-18
SE510719C2 (en) 1999-06-14

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Legal Events

Date Code Title Description
NUG Patent has lapsed