EP0108270A1 - Elektronische, von einem Diebstahl abhaltende Sicherheitsvorrichtung für ein elektronisches Gerät - Google Patents

Elektronische, von einem Diebstahl abhaltende Sicherheitsvorrichtung für ein elektronisches Gerät Download PDF

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Publication number
EP0108270A1
EP0108270A1 EP83110057A EP83110057A EP0108270A1 EP 0108270 A1 EP0108270 A1 EP 0108270A1 EP 83110057 A EP83110057 A EP 83110057A EP 83110057 A EP83110057 A EP 83110057A EP 0108270 A1 EP0108270 A1 EP 0108270A1
Authority
EP
European Patent Office
Prior art keywords
circuit means
radio set
installation
car radio
safeguarding device
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Withdrawn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
EP83110057A
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English (en)
French (fr)
Inventor
Roberto Carnevale Bonino
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
Publication of EP0108270A1 publication Critical patent/EP0108270A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00714—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with passive electrical components, e.g. resistor, capacitor, inductor

Definitions

  • This invention relates to a theft discouraging safeguarding device for application on electronic apparatus of any kind for the purpose of discouraging unauthorized tempering of such apparatus.
  • the invention relates to a safeguarding device associable with radio sets installed on automibile vehicles, useful to only permit their utilization on predetermined automobile vehicles.
  • antitheft devices for car-mounted radio sets are of a mechanical type and in general relatively ineffective, while their cost is a prohibitive one, sometimes exceeding that of the radio set itself.
  • An antitheft device of the mentioned type has been studied, which is based on the principle of removably associating to the radio set an operative circuit block indispensable for the operation of the radio itself, which block is removed by the user with the car in a parked condition.
  • This device has the drawback that, after the mentioned operative block has been removed from the radio and relocated therein many times, it may be irreparably damaged because of falls, shocks and the like, thereby preventing the overall radio set from operating.
  • a block is a rather cumbersome component to be held in the pocket.
  • Another antitheft device has been studied for car radio sets based on a microprocessor to be built in as a main code controller in the radio and which is in turn controlled by a radiation emitting stick at disposal of the user for enabling and respectively disabling the radio from operating, at will.
  • Such an antitheft device proved to be very expensive and moreover makes very complex the circuitry of the radio.
  • the task of the present invention is to provide a safeguarding device for application on electric and electronic apparatus of any kind, in particular car radios, to only enable their utilization in preset conditions, and only in a selected installation environment, in particular only on one selected automobile vehicle.
  • a further object of the invention is to provide a safeguarding device as above, which is of relatively low cost, requires virtually no maintenance, and can be manufactured from commercially readily available components and/or materials.
  • a safeguarding device for electric and electronic apparatus in general and in particular for car radio sets provided for only allowing such apparatus to be used upon the occurrence of predetermined installation conditions, characterized in that it comprises first circuit means for installation at a preset location, in particular within an automobile vehicle, and second circuit means adapted to cooperate functionally with said first circuit means and for installation on the inside of said apparatus and/or car radio set, said second circuit means being adapted for functional interconnection with said first circuit means upon installation of said apparatus or car radio set at the operative location thereof to only enable operation of said apparatus or car radio set after a predetermined coded coupling relationship has been established between said first and second circuit means.
  • this device of an electronic character, is functionally comprised of three blocks, namely: a first unit 1 which contains specific coding means for that unit indicated in the diagram at Rx and comprising, for example, a mere resistor; a second block or unit 2 which contains the decoder means capable of reading out only that preset code as set in the unit 1; and a third block or unit 3 comprising essentially, in accordance with this invention, a circuit which inhibits or in all cases disallows the normal operation of the radio set.
  • the unit 1 may be installed in any desired portion of the automobile vehicle, e.g. in the engine compartment thereof, tne units 2 and j being intended for installation inside the radio set, or preferably, in the circuit of the radio set.
  • the integrated circuit TCA 965 which, as aforesaid, is readily available commercially, controls the voltage applied at the terminals 6 and 7 to keep it within set limits; thus, if the value is maintained within the design range, then a peak positive voltage appears at the terminal 3 of the integrated circuit, whereas, if the voltage applied to the terminal 8 is outside of the design range, then the operation of the electric apparatus or car radio set is prevented.
  • the relay in the energized state thereof, will pass a positive voltage to transistors, in turn feeding specific portions of the radio set.
  • the invention achieves its objects.
  • a simple encoding means in the form of a mere resistor, susceptible of millions different values, it can be easily concealed at a selected location in the car, and by providing the radio set with a simple decoding circuitry, the radio set itself, when removed from the automobile vehicle, is rendered virtually unnsable, thus discouraging burglary acts.
  • the inventive device is simple circuit-wise, readily adaptable on any existing types of car radio sets, and may be produced commercially for a very low cost.
  • the inventive device may be easily adapted for the protection of the storage battery of the car, by inserting the mentioned integrated circuit and the driving circuitry therefor in the battery itself in the making shop, or for the protection of other electronic devices of the car, such as the modern computers in the form of processor blocks controlling the fuel delivery rate according to the driving conditions.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
EP83110057A 1982-10-14 1983-10-08 Elektronische, von einem Diebstahl abhaltende Sicherheitsvorrichtung für ein elektronisches Gerät Withdrawn EP0108270A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2317982U IT8223179V0 (it) 1982-10-14 1982-10-14 Dispositivo di sicurezza applicabile ad apparecchiature elettroniche in genere per consentire l'impiego solo in condizioni prefissate.
IT2317982U 1982-10-14

Publications (1)

Publication Number Publication Date
EP0108270A1 true EP0108270A1 (de) 1984-05-16

Family

ID=11204592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110057A Withdrawn EP0108270A1 (de) 1982-10-14 1983-10-08 Elektronische, von einem Diebstahl abhaltende Sicherheitsvorrichtung für ein elektronisches Gerät

Country Status (2)

Country Link
EP (1) EP0108270A1 (de)
IT (1) IT8223179V0 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249028A1 (de) * 1986-05-13 1987-12-16 FIAT AUTO S.p.A. Kraftfahrzeug mit einem Instrumentenbrett mit eingebautem Funkempfänger und einem Gehäuse für ein ausziehbares und kodifizierbares Kassettengerät
EP0253947A2 (de) * 1986-07-22 1988-01-27 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Auto-Rundfunkgerät
EP0269965A1 (de) * 1986-12-02 1988-06-08 f+g megamos Sicherheitselektronik GmbH Verfahren und Schaltungsanordnung zur Diebstahlsicherung von Geräten, insbesondere Autoradiogeräten
EP0281674A1 (de) * 1987-02-27 1988-09-14 Valeo Neiman Verfahren zur Diebstahlsicherung von Rundfunkempfängern
EP0291827A2 (de) * 1987-05-21 1988-11-23 Blaupunkt-Werke GmbH Autoradio mit einer elektronischen Diebstahlsicherung
FR2625009A1 (fr) * 1987-12-16 1989-06-23 Rolland Marie Christine Systeme de securite electronique via support portable
FR2626927A1 (fr) * 1988-02-05 1989-08-11 Sgs Thomson Microelectronics Protection d'autoradio par carte a puce
GB2237159A (en) * 1989-09-29 1991-04-24 Pioneer Electronic Corp Anti-theft device for vehicular electric apparatus
EP0567106A1 (de) * 1992-04-23 1993-10-27 Pioneer Electronic Corporation Antidiebstahlsystem für Autostereogerät mit abnehmbarem Vorderteil
WO1999009662A1 (de) * 1997-08-13 1999-02-25 Robert Bosch Gmbh Autoradio mit einer fernbedienung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078182A (en) * 1975-07-11 1978-03-07 Arney D B Destructive mechanism for automobile tape decks, radios and the like
US4148372A (en) * 1977-09-21 1979-04-10 General Motors Corporation Resistor coded theft deterrent system
DE2846343A1 (de) * 1978-10-25 1980-05-08 Sachs Systemtechnik Gmbh Elektronische warnanlage
EP0010870A1 (de) * 1978-10-04 1980-05-14 Glynwed Group Services Limited Elektronisches Schloss mit Schlüssel und damit verbundenes Alarmsystem
DE3006539A1 (de) * 1980-02-21 1981-08-27 Peter 6369 Nidderau Stock Vorrichtung zur diebstahlsicherung von gegenstaenden die auf bzw. an kraftfahrzeugen befestigt sind
DE3043593A1 (de) * 1979-06-29 1982-06-24 Daimler-Benz Ag, 7000 Stuttgart Vorrichtung zum verhindern einer unbefugten benutzung eines fahrzeuges, insbesondere eines kraftfahrzeuges

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078182A (en) * 1975-07-11 1978-03-07 Arney D B Destructive mechanism for automobile tape decks, radios and the like
US4148372A (en) * 1977-09-21 1979-04-10 General Motors Corporation Resistor coded theft deterrent system
EP0010870A1 (de) * 1978-10-04 1980-05-14 Glynwed Group Services Limited Elektronisches Schloss mit Schlüssel und damit verbundenes Alarmsystem
DE2846343A1 (de) * 1978-10-25 1980-05-08 Sachs Systemtechnik Gmbh Elektronische warnanlage
DE3043593A1 (de) * 1979-06-29 1982-06-24 Daimler-Benz Ag, 7000 Stuttgart Vorrichtung zum verhindern einer unbefugten benutzung eines fahrzeuges, insbesondere eines kraftfahrzeuges
DE3006539A1 (de) * 1980-02-21 1981-08-27 Peter 6369 Nidderau Stock Vorrichtung zur diebstahlsicherung von gegenstaenden die auf bzw. an kraftfahrzeugen befestigt sind

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ELO, 1977, no. 2, "TCA 965 Fensterdiskriminator", pages 41- 42 *
SIEMENS "Integrierte Schaltungen für Industrielle Anwendungen", Datunbuch 1982/83, pages 224-230 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249028A1 (de) * 1986-05-13 1987-12-16 FIAT AUTO S.p.A. Kraftfahrzeug mit einem Instrumentenbrett mit eingebautem Funkempfänger und einem Gehäuse für ein ausziehbares und kodifizierbares Kassettengerät
EP0253947A2 (de) * 1986-07-22 1988-01-27 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Auto-Rundfunkgerät
EP0253947A3 (en) * 1986-07-22 1988-10-05 Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig & Co. Kg. Broadcast apparatus for cars
EP0269965A1 (de) * 1986-12-02 1988-06-08 f+g megamos Sicherheitselektronik GmbH Verfahren und Schaltungsanordnung zur Diebstahlsicherung von Geräten, insbesondere Autoradiogeräten
EP0281674A1 (de) * 1987-02-27 1988-09-14 Valeo Neiman Verfahren zur Diebstahlsicherung von Rundfunkempfängern
EP0291827A2 (de) * 1987-05-21 1988-11-23 Blaupunkt-Werke GmbH Autoradio mit einer elektronischen Diebstahlsicherung
EP0291827A3 (de) * 1987-05-21 1989-03-01 Blaupunkt-Werke GmbH Autoradio mit einer elektronischen Diebstahlsicherung
FR2625009A1 (fr) * 1987-12-16 1989-06-23 Rolland Marie Christine Systeme de securite electronique via support portable
FR2626927A1 (fr) * 1988-02-05 1989-08-11 Sgs Thomson Microelectronics Protection d'autoradio par carte a puce
EP0329513A1 (de) * 1988-02-05 1989-08-23 STMicroelectronics S.A. Diebstahlsicherungssystem mit Chipkarte für ein Autoradio
GB2237159A (en) * 1989-09-29 1991-04-24 Pioneer Electronic Corp Anti-theft device for vehicular electric apparatus
US5091724A (en) * 1989-09-29 1992-02-25 Pioneer Electronic Corporation Anti-theft device for a vehicular electric apparatus
GB2237159B (en) * 1989-09-29 1994-03-23 Pioneer Electronic Corp Anti-theft device for a vehicular electric apparatus
EP0567106A1 (de) * 1992-04-23 1993-10-27 Pioneer Electronic Corporation Antidiebstahlsystem für Autostereogerät mit abnehmbarem Vorderteil
US5323139A (en) * 1992-04-23 1994-06-21 Pioneer Electronic Corporation Antitheft system for a car stereo having a detachable grille
WO1999009662A1 (de) * 1997-08-13 1999-02-25 Robert Bosch Gmbh Autoradio mit einer fernbedienung

Also Published As

Publication number Publication date
IT8223179V0 (it) 1982-10-14

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Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB LI NL

17P Request for examination filed

Effective date: 19841108

17Q First examination report despatched

Effective date: 19860808

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19861219