GB2217885A - A security system for electrical apparatus - Google Patents

A security system for electrical apparatus Download PDF

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Publication number
GB2217885A
GB2217885A GB8821548A GB8821548A GB2217885A GB 2217885 A GB2217885 A GB 2217885A GB 8821548 A GB8821548 A GB 8821548A GB 8821548 A GB8821548 A GB 8821548A GB 2217885 A GB2217885 A GB 2217885A
Authority
GB
United Kingdom
Prior art keywords
security system
control circuit
electrical apparatus
electrical
vehicle
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
GB8821548A
Other versions
GB8821548D0 (en
GB2217885B (en
Inventor
Bernhard Jensen
Albert Williams
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 GB8821548D0 publication Critical patent/GB8821548D0/en
Publication of GB2217885A publication Critical patent/GB2217885A/en
Application granted granted Critical
Publication of GB2217885B publication Critical patent/GB2217885B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/04—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor
    • B60R25/045—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the propulsion system, e.g. engine or drive motor by limiting or cutting the electrical supply to the propulsion unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/10—Registration, licensing, or like devices
    • 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
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
    • G07C9/23—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder by means of a password

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical 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)
  • Lock And Its Accessories (AREA)

Abstract

A security system for immobilizing electrical apparatus e.g. the electrical circuits of a motor vehicle. A signal generating unit 1 produces a coded electrical signal which is applied to a control unit 2. The insertion of a unique electronically coded card 3 in a slot 4 in the control unit causes it to respond and energise the ignition circuit 6 and liquid crystal displays 10 of the vehicle registration number on the front and rear number plates 7 and 8. The security system can be applied to other electrical apparatus such as a television set, a video recorder, a hi-fi system or a music centre. <IMAGE>

Description

A security system for electrical apparatus This invention relates to a security system for electrical apparatus and particularly though not exclusively to a security system for the electrical circuits of a motor vehicle.
Every year thousands of motor vehicles are stolen by thieves who break into the vehicle and tamper with the ignition circuit to enable them to drive the vehicle away. Apart from the loss and inconvenience to the owner of the motor vehicle the many thefts of vehicle result in increases in insurance premiums for all vehicle owners. Moreover, much expensive electrical apparatus such as television sets, video decks and music centres have become the target of thieves, since such apparatus seems to find a ready market once it has been stolen..
It is an object of this invention to provide a security system for electrical apparatus which will render the apparatus inoperable by a thief and thus act as a deterrent to a thief.
According to the present invention a security system for an electrical apparatus comprises a signal generating circuit arranged to apply an electrical signal to a control circuit arranged to respond when a unique code is entered therein, and on receipt of such a code to render the otherwise inoperable electrical apparatus operable.
Preferably the unique code is entered in the control circuit by inserting an electrically coded card.
The electrical apparatus which is rendered operable by the control circuit may be the ignition circuit of a motor vehicle and/or apparatus for displaying the registration number of a motor vehicle.
When the apparatus which is rendered operable by the control circuit is apparatus for displaying the registration number of the vehicle it may include a liquid crystal display device.
The electrical apparatus which is rendered operable by the control circuit may also be a television receiver, a video deck for recording television programmes, a so-called hi-fi apparatus or a music centre.
The signal generating circuit and the control circuit may comprise integrated circuits or so-called micro-chips.
The signal generating circuit may be arranged to apply a unique pulse coded signal to the control circuit which may be arranged to respond only when an identical code is entered therein.
The invention will now be described, by way of example, with reference to the accompanying drawings in which: Figure 1 is a block schematic diagram of an electrical circuit of a motor vehicle embodying the invention; and Figure 2 is a block schematic diagram of an electrical circuit of a television set embodying the invention.
Referring in the first instance to Figure 1, an electrical apparatus of a motor vehicle is provided with a security system comprising a signal generating unit 1 arranged to apply an electrical signal to a control unit 2. The signal generating unit 1 which comprises an integrated circuit or so-called micro-chip produces a coded electrical signal in the form of a train of pulses indicative of the registration number of the motor vehicle and applies them to the control unit 2.
An electronically coded card 3 unique to the motor vehicle and indicative of the registration number of the motor vehicle is arranged to be inserted in a slot 4 in the control unit 2. The control unit 2, with which the electronically coded card 3 co-operates comprises an integrated circuit or so-called micro-chip. On the insertion of the uniquely coded card 3 the control unit 2 responds and energises the ignition circuit 6 of the motor vehicle to start its engine. At the same time the control unit 2 responds and energises the electrical circuit of the front number plate 7 of the vehicle and the electrical circuit of the rear number plate 8 of the vehicle both of which incorporate liquid crystal display device 10 showing the registration number of the vehicle.
It is an advantage of the embodiment of the invention shown in Figure 1 that if the vehicle is broken into it could not be started without the uniquely coded card 3. Thus a thief not in possession of the coded card 3 would be thwarted. If a thief did manage to tamper with and by-pass the ignition circuit then it would be clear to the police that the car had been stolen since without the insertion of the uniquely coded card 3 the registration number of the vehicle would not be displayed by the display devices 10. When the vehicle is parked the tax disc shows the registration number of the vehicle for the benefit of traffic wardens or the police.
It is envisaged that the security system would be installed by the motor vehicle manufacturer who would be allocated a block of registration numbers and would issue the uniquely coded card 3 with the vehicle when it is sold. No other card would be able to be used to start the vehicle thus ensuring that the system was virtually thief-proof. While it is preferable that the front and rear number plates 7 and 8 should be liquid crystal display devices 10, it will be appreciated that other forms of display device are not precluded from the invention.
Turning now to Figure 2 which illustrates the invention applied to a television set comprising a signal generating unit 11 arranged to apply an electrical signal to a control unit 12. The signal generating unit 11 which comprises an integrated circuit or so-called micro-chip produces a coded electrical signal in the form of a train of pulses indicative of the manufacturer's serial number of the television set anl applies them to the control unit 12.
An electronically coded card 13 unique to the television set and indicative of the manufacturer's serial number is arranged to be inserted in a slot 14 in the control unit 12. On the insertion of the uniquely coded card 13 the control unit 12 responds and renders the electrical circuit 16 of the television set fully operative so that programmes can be received. When the television set is not in use, for example, when the owner is away on holiday, removal of the uniquely coded card 13 ensures that the television set cannot be operated. A potential thief would therefore be discouraged from stealing the television set.
It is envisaged that the security system would be installed in the television set by the manufacturer who would issue the uniquely coded card 3 with the television set when it is sold. The control unit 12 would be arranged to immobilize several stages of the electrical circuit 16 of the set thus making it extremely difficult to circumvent the security system.
It will be appreciated that the security system of the invention is eminently applicable to many other types of electrical apparatus, for example, video decks, hi-fi systems and music centres and can readily be applied to them for protection against potential thieves.
Also while the security systems in both the illustrated embodiments comprises several separate distinct stages it will be appreciated that two or more of these stages may be provided by one complex integrated circuit.

Claims (8)

1. A security system for an electrical apparatus comprising, a signal generating circuit arranged to apply an electrical signal to a control circuit arranged to respond when a unique code is entered therin, and on receipt of such a code to render the otherwise inoperable apparatus operable.
2. A security system as claimed in Claim 1, wherein the unique code is entered in the control circuit by inserting an electronically coded card.
3. A security system as claimed in Claim 1 or Claim 2, wherein the electrical apparatus rendered operable by the control is the ignition circuit of a motor vehicle.
4. A security system as claimed in any preceeding claim, wherein the electrical apparatus rendered operable by the control circuit is an apparatus for displaying the registration number of a motor vehicle.
5. A security system as claimed in Claim 4, wherein the apparatus for displaying the registration number of the motor vehicle includes a liquid crystal display device.
6. A security system as claimed in Claim 1 or Claim 2, wherein the electrical apparatus rendered operable by the control circuit is a television receiver.
7. A security system as claimed in Claim 1 or Claim 2. wherein the electrical apparatus rendered operable by the control circuit is a video deck for recording television programmes and for playing recorded material.
8. A security system for displaying the registration number of a motor vehicle substantially as hereinbefore described with reference to the accompanying drawing
8. A security system as claimed in Claim 1 or Claim 2, wherein the electrical apparatus rendered operable by the control circuit is a hi-fi apparatus or a music centre.
9. A security system as claimed in any preceeding claim, wherein the signal generating circuit includes an integrated circuit or so-called micro-chip.
10. A security system as claimed in any preceeding claim, wherein the control circuit includes an integrated circuit or so-called micro-chip.
11. A security system as claimed in any preceeding claim, wherein the signal generating circuit applies a unique pulse coded signal to the control circuit which responds only when an identical code is entered therein.
12. A security system substantially as hereinbefore described with reference to Figure 1 or Figure 2 of the accompanying drawings.
Amendments to the claims have been filed as follows 1. A security system for a motor vehicle comprising, a signal generating circuit arranged to apply an electrical signal to a control circuit arranged to respond when a unique code is entered therein, and on receipt of such a code to render operable an otherwise inoperable apperatus for displaying the registration number of the vehicle.: 2. A security system as claimed in Claim 1, wherein the entering of the unique code into the control circuit energises electrical apparatus of a front number plate and a rear number plate of the vehicle causing them to display the registration number of the vehicle.
3. A security system as claimed in Claim 1 or Claim 2, wherein the apparatus for displaying the registration number of the vehicle includes a liquid crystal display device.
4. A security system as claimed in any preceding claim, wherein the unique code is entered in the control circuit by inserting an electronically coded card.
5. A security system as claimed in any preceding claim, wherein the signal generating circuit includes an integrated circuit or so-called micro-chip.
6. A security system as claimed in any preceding claim, wherein the control circuit includes an integrated circuit or so-called micro-chip.
7. A security system as claimed in any preceding claim, wherein the signal generating circuit applies a unique pulse coded signal to the control circuit which responds only when an identical code is entered therein.
GB8821548A 1988-07-08 1988-09-14 A security system for a motor vehicle Expired - Lifetime GB2217885B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888816371A GB8816371D0 (en) 1988-07-08 1988-07-08 Liquid crystal display theft deterent & detection device

Publications (3)

Publication Number Publication Date
GB8821548D0 GB8821548D0 (en) 1988-10-12
GB2217885A true GB2217885A (en) 1989-11-01
GB2217885B GB2217885B (en) 1990-05-02

Family

ID=10640173

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888816371A Pending GB8816371D0 (en) 1988-07-08 1988-07-08 Liquid crystal display theft deterent & detection device
GB8821548A Expired - Lifetime GB2217885B (en) 1988-07-08 1988-09-14 A security system for a motor vehicle

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888816371A Pending GB8816371D0 (en) 1988-07-08 1988-07-08 Liquid crystal display theft deterent & detection device

Country Status (1)

Country Link
GB (2) GB8816371D0 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466314A2 (en) * 1990-07-13 1992-01-15 MORISAWA &amp; COMPANY LTD Parking time display device
WO1992013737A1 (en) * 1991-02-04 1992-08-20 Wilhelm Heinrich Hofmann Device for marking motor vehicles
FR2712541A1 (en) * 1993-11-15 1995-05-24 Ennahdi El Idrissi Driss Identification marking for anti-theft protection of motor vehicles
US5446266A (en) * 1991-08-01 1995-08-29 U.S. Philips Corporation Security system for an apparatus
ES2111461A1 (en) * 1995-05-29 1998-03-01 Ahmed Gumaa Bushara Electronic, anti-theft starter system
GB2325549A (en) * 1997-05-23 1998-11-25 Richard Michael Langfor Knight Security and immobilisation system
CN103963720A (en) * 2013-11-28 2014-08-06 伍越 Combined antitheft license plate device

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803551A (en) * 1971-09-08 1974-04-09 H Jordan Vehicle operator identification system
GB2002158A (en) * 1977-08-03 1979-02-14 Essex Transducers Keyless entrysystem
GB2018482A (en) * 1978-04-06 1979-10-17 Rossi G Electronic antitheft device
GB2023897A (en) * 1977-09-22 1980-01-03 Licentia Gmbh Security systems
GB2041599A (en) * 1979-01-11 1980-09-10 Hewit J Digitally coded device for theft protection
GB2046827A (en) * 1979-02-21 1980-11-19 Pan Eng Ltd Electronic coded locks
GB2051442A (en) * 1979-03-30 1981-01-14 Howard J A A security system
GB2119548A (en) * 1982-03-17 1983-11-16 John Robert Carter Locking system
GB2130773A (en) * 1982-11-26 1984-06-06 Henry Hagan Anti-theft device
US4494114A (en) * 1983-12-05 1985-01-15 International Electronic Technology Corp. Security arrangement for and method of rendering microprocessor-controlled electronic equipment inoperative after occurrence of disabling event
GB2149550A (en) * 1983-11-08 1985-06-12 Alpine Electronics Inc Device for deterring theft of audio equipment in vehicles
WO1987001229A1 (en) * 1985-08-14 1987-02-26 Dunn, Jeffrey Security device
US4720700A (en) * 1985-03-16 1988-01-19 Blaupunkt-Werke Gmbh Security system and method for electronic apparatus, particularly car radios or similar automotive audio equipment

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803551A (en) * 1971-09-08 1974-04-09 H Jordan Vehicle operator identification system
GB2002158A (en) * 1977-08-03 1979-02-14 Essex Transducers Keyless entrysystem
GB2023897A (en) * 1977-09-22 1980-01-03 Licentia Gmbh Security systems
GB2018482A (en) * 1978-04-06 1979-10-17 Rossi G Electronic antitheft device
GB2041599A (en) * 1979-01-11 1980-09-10 Hewit J Digitally coded device for theft protection
GB2046827A (en) * 1979-02-21 1980-11-19 Pan Eng Ltd Electronic coded locks
GB2051442A (en) * 1979-03-30 1981-01-14 Howard J A A security system
GB2119548A (en) * 1982-03-17 1983-11-16 John Robert Carter Locking system
GB2130773A (en) * 1982-11-26 1984-06-06 Henry Hagan Anti-theft device
GB2149550A (en) * 1983-11-08 1985-06-12 Alpine Electronics Inc Device for deterring theft of audio equipment in vehicles
US4494114A (en) * 1983-12-05 1985-01-15 International Electronic Technology Corp. Security arrangement for and method of rendering microprocessor-controlled electronic equipment inoperative after occurrence of disabling event
US4494114B1 (en) * 1983-12-05 1996-10-15 Int Electronic Tech Security arrangement for and method of rendering microprocessor-controlled electronic equipment inoperative after occurrence of disabling event
US4720700A (en) * 1985-03-16 1988-01-19 Blaupunkt-Werke Gmbh Security system and method for electronic apparatus, particularly car radios or similar automotive audio equipment
WO1987001229A1 (en) * 1985-08-14 1987-02-26 Dunn, Jeffrey Security device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0466314A2 (en) * 1990-07-13 1992-01-15 MORISAWA &amp; COMPANY LTD Parking time display device
EP0466314A3 (en) * 1990-07-13 1992-07-08 Morisawa & Company Ltd Parking time display device
WO1992013737A1 (en) * 1991-02-04 1992-08-20 Wilhelm Heinrich Hofmann Device for marking motor vehicles
DE4103267A1 (en) * 1991-02-04 1992-09-03 Hofmann Wilhelm Heinrich ARRANGEMENT FOR LABELING MOTOR VEHICLES
TR25869A (en) * 1991-02-04 1993-09-01 Hofmann Wilhelm Heinrich REGISTRATION SYSTEM FOR REGISTERING MOTOR VEHICLE INFORMATION.
US5396233A (en) * 1991-02-04 1995-03-07 Hofmann; Wilhelm H. Arrangement for identifying motor vehicles
US5446266A (en) * 1991-08-01 1995-08-29 U.S. Philips Corporation Security system for an apparatus
FR2712541A1 (en) * 1993-11-15 1995-05-24 Ennahdi El Idrissi Driss Identification marking for anti-theft protection of motor vehicles
ES2111461A1 (en) * 1995-05-29 1998-03-01 Ahmed Gumaa Bushara Electronic, anti-theft starter system
GB2325549A (en) * 1997-05-23 1998-11-25 Richard Michael Langfor Knight Security and immobilisation system
CN103963720A (en) * 2013-11-28 2014-08-06 伍越 Combined antitheft license plate device
CN103963720B (en) * 2013-11-28 2015-05-27 伍越 Combined antitheft license plate device

Also Published As

Publication number Publication date
GB8816371D0 (en) 1988-08-10
GB8821548D0 (en) 1988-10-12
GB2217885B (en) 1990-05-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920914