EP0896311A2 - Elektronische Diebstahl- und /oder Verlustsicherungsvorrichtung - Google Patents

Elektronische Diebstahl- und /oder Verlustsicherungsvorrichtung Download PDF

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Publication number
EP0896311A2
EP0896311A2 EP98830410A EP98830410A EP0896311A2 EP 0896311 A2 EP0896311 A2 EP 0896311A2 EP 98830410 A EP98830410 A EP 98830410A EP 98830410 A EP98830410 A EP 98830410A EP 0896311 A2 EP0896311 A2 EP 0896311A2
Authority
EP
European Patent Office
Prior art keywords
transmitter
receiver
unit
signalling
fact
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.)
Withdrawn
Application number
EP98830410A
Other languages
English (en)
French (fr)
Other versions
EP0896311A3 (de
Inventor
designation of the inventor has not yet been filed The
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.)
Arata Igor
Original Assignee
Arata Igor
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 Arata Igor filed Critical Arata Igor
Publication of EP0896311A2 publication Critical patent/EP0896311A2/de
Publication of EP0896311A3 publication Critical patent/EP0896311A3/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1427—Mechanical actuation by lifting or attempted removal of hand-portable articles with transmitter-receiver for distance detection

Definitions

  • This invention relates to an anti-loss and/or anti-theft electronic device and its objective is to provide a simple, compact and low-priced portable device which would enable to verify that an object or a person (for instance a child) constantly stays within a fixed range of action in relation to the person checking the device.
  • the electronic device includes two separate and portable apparatuses: a transmitter and a receiver.
  • the transmitter can be integrated with or fixed to an object to be watched or it can be carried by or applied to a person to be kept an eye on.
  • the transmitter generates and gives off a radio signal with a fixed range of action.
  • the receiver does not receive the radio signal coming from its linked transmitter it means that the transmitter and the receiver have moved away for a distance which is higher than the range of action of the transmitter. This circumstance is signalled by the activation of a signalling device carried by the receiver.
  • the radio signal is coded by the transmitter and is decoded by the receiver.
  • a decoding system located on the receiver sees to the activation of the signalling device when it does not recognise the signal code of its linked transmitter.
  • the electronic device is essentially made up of a transmitter 1 and a receiver 2.
  • the transmitter 1 includes a current generator or power supply 3, an on/off switch 4, a transmission unit for giving off the radio signal and by a coding unit 6.
  • the radiofrequency part of the transmitter consists of an oscillator using a superficial acoustic wave (SAW) device for frequency stabilisation.
  • a radiating element 7 consists of a loop antenna directly cut into a printed circuit.
  • the effective radiated power (ERP) will be lower than about 10 mW, which represents the limit imposed by Law for this type of application.
  • the transmitter device 1 can be integrated with an object to be watched, such as for instance a portable phone or computer or with any other commonly used object which normally stays within the user's immediate proximity (suitcases, handbags, etc.). Should the transmitter be integrated with an object equipped with a power supply, the power for the transmitter could be supplied by the object to be watched. As an alternative, the transmitter 1 might be physically separated from the object to be watched and it could be equipped with means for connecting it to such an object.
  • the transmitter 1 could also be applied to a person (particularly to a child) to prevent this person from moving excessively away from the person watching him, for example, to prevent loosing a child in crowded places.
  • the transmitter could be equipped with a bracelet or small chain to be applied on the person that needs keeping an eye on.
  • the receiver 2 includes an antenna 8, a receiving unit 9 and a decoding unit 10.
  • the radiofrequency part of the receiver preferably consists of a hybrid integrated circuit with an integrated antenna, of the type available on the market.
  • the decoding unit 10 can also be composed of an integrated circuit which is commercially available.
  • the receiver 2 includes a power source 13, an on/off switch 11 and a signalling device 15 which can for instance be activated by an actuator 12, 14.
  • the actuator 15 can be made up of a piezoelectric buzzer or by a luminous LED and possibly by a small alphanumeric display for visualising an alarm message.
  • the decoding unit 10 of the receiver 2 recognises the code signal of its linked transmitter and keeps the signalling device 15 disconnected.
  • Figure 2 illustrates a situation where the receiver 2 is outside the transmission range 16 of the signal given off by the transmitter 1. In this condition the receiver 2 no longer picks up a signal from the transmitter 1.
  • the decoding unit 10 of the receiver is set up to relay the connection of the signalling device 15 when it does not recognise the signal code of its linked transmitter.
  • the connection of the signalling device alerts, through an acoustic and/or visual signal, the user to the fact that the distance between himself and the object or person to be watched has gone over the safety limit. As a result of the signal, the user will then be able to take the necessary measures to avoid losing the object or the person to be watched.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transceivers (AREA)
  • Burglar Alarm Systems (AREA)
EP98830410A 1997-07-09 1998-07-03 Elektronische Diebstahl- und /oder Verlustsicherungsvorrichtung Withdrawn EP0896311A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITGE970058 1997-07-09
IT97GE000058A ITGE970058A1 (it) 1997-07-09 1997-07-09 Dispositivo eletronico antismarrimento e/o antifurto.

Publications (2)

Publication Number Publication Date
EP0896311A2 true EP0896311A2 (de) 1999-02-10
EP0896311A3 EP0896311A3 (de) 1999-08-04

Family

ID=11355051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830410A Withdrawn EP0896311A3 (de) 1997-07-09 1998-07-03 Elektronische Diebstahl- und /oder Verlustsicherungsvorrichtung

Country Status (2)

Country Link
EP (1) EP0896311A3 (de)
IT (1) ITGE970058A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1256916A3 (de) * 2001-05-08 2003-07-23 Vladimiro Teagno Diebstahlschutzvorrichtung
GB2389945A (en) * 2002-06-20 2003-12-24 John Edward Hallam Article loss detection system
EP1447779A1 (de) * 2003-02-12 2004-08-18 Francisco Cabrera Castro Warnungsvorrichtung für Verlustsicherung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH657466A5 (en) * 1984-03-02 1986-08-29 Quadim S A Apparatus for monitoring the nearness of an object
DE4241277A1 (de) * 1992-12-08 1994-06-09 Peter Prof Dr Gottwald System zur Alarmierung im Fall des Entfernens mindestens zweier Gegenstände voneinander
GB9414256D0 (en) * 1994-07-14 1994-08-31 Duffy Brian Range detection
DE4436991A1 (de) * 1994-10-06 1996-04-11 Deutsch Wilhelm Selektive Überwachungseinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1256916A3 (de) * 2001-05-08 2003-07-23 Vladimiro Teagno Diebstahlschutzvorrichtung
GB2389945A (en) * 2002-06-20 2003-12-24 John Edward Hallam Article loss detection system
EP1447779A1 (de) * 2003-02-12 2004-08-18 Francisco Cabrera Castro Warnungsvorrichtung für Verlustsicherung

Also Published As

Publication number Publication date
EP0896311A3 (de) 1999-08-04
ITGE970058A1 (it) 1999-01-11

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