WO1998052789A1 - Vehicle signalling system - Google Patents

Vehicle signalling system Download PDF

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Publication number
WO1998052789A1
WO1998052789A1 PCT/GB1998/001292 GB9801292W WO9852789A1 WO 1998052789 A1 WO1998052789 A1 WO 1998052789A1 GB 9801292 W GB9801292 W GB 9801292W WO 9852789 A1 WO9852789 A1 WO 9852789A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
display means
control unit
display
vehicle signalling
Prior art date
Application number
PCT/GB1998/001292
Other languages
French (fr)
Inventor
Robbie Alexander Crawford
Original Assignee
Urbane Systems Limited
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 Urbane Systems Limited filed Critical Urbane Systems Limited
Priority to AU73423/98A priority Critical patent/AU7342398A/en
Publication of WO1998052789A1 publication Critical patent/WO1998052789A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/503—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text
    • B60Q1/5035—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text electronic displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/549—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for expressing greetings, gratitude or emotions

Definitions

  • This invention relates to a signalling system for use in a road vehicle for selectively displaying messages and/or symbols to other road users.
  • hand gestures have been used to indicate thanks to another driver who has, for example, let another driver pull out of a side road or change lane on a motorway. When a driver is thanked, it reinforces helpful driving, and both drivers are then more likely to be considerate of other road users.
  • hand gestures of thanks can be open to misinterpretation, especially since most insulting gestures between drivers also involve the use of hands.
  • a vehicle signalling system comprising a display means arranged to display any of a plurality of predetermined messages or symbols, means for attaching the display means to the inside surface of a vehicle win- dow so that the display means may be viewed from outside the vehicle, and a remote control unit having means for selecting the message or symbol to be displayed by the display means and signalling to the display means to display the selected message or symbol.
  • the display means is connected to the remote control unit by a trail- ing wire or wires.
  • the remote control unit may also be connectable to the vehicle's battery by way of a separate wire or wires, for example having a plug to establish an electrical connection with an outlet such as a cigarette lighter socket.
  • the remote control unit has no physical connection to the display means, but instead signals to the display means by infra red or radio signals.
  • the display means may therefore be provided in this embodiment with internal batteries.
  • the batteries may be replaceable dry cells, removable rechargeable cells, or even cells recharged by solar panels mounted on or near the display means.
  • the remote control unit preferably has separate buttons or other touch- responsive areas for each message or symbol to be displayed by the display means, to simplify operation and therefore minimise distraction for the driver.
  • the control unit may be shaped so that the driver may readily distinguish the different control buttons or areas by touch, but they may also be colour-coded as well as having identifying words and/or symbols thereon. As the control unit is not fixed to the vehicle or built in to the vehicle's existing controls, it can readily be placed in a position convenient to the indi- vidual driver, thus enabling him or her to use the control quickly in circumstances where a rapid reaction is required, either to say SORRY or THANKS.
  • the display can also serve as an additional brake warning light visible in the rear window of a vehicle. This may be achieved by providing the device with separate lights linked to the vehicle's braking system, or by providing a matrix of individual lights, such as light-emitting diodes (LEDs), which can be selectively switched on and off to display different words or symbols , all the lights in the array being lit when the brake-warning function is oper- ated.
  • LEDs light-emitting diodes
  • the display means is preferably configured as a body rotatably mounted between two brackets which attach adhesively to the surface of the window, for example by resilient adhesive pads.
  • the brackets preferably are each provided with a plug formation insertable into a socket in the respective end of the body of the display means.
  • the plugs are preferably held in place by resilient means within the socket.
  • the resilient means preferably comprise radially-directed resilient members bearing inwardly on the plugs so as to ensure that there is sufficient friction on the plugs to hold the display means, in use, at the selected orientation relative to the window so that the displayed message or symbol is readily visible to other motorists.
  • the device of the invention is simple to install in a vehicle without the use of tools, and may therefore be sold as an accessory for installation by the user, rather than having to be installed during construction of the vehicle.
  • Figure 1 is a perspective view of the display device
  • Figure 2 is a perspective view of the remote control unit
  • Figure 3 is an enlarged cross-sectional elevation of the connection between a mounting bracket and one half of the body of the display device, the other half being omitted for the sake of clarity; and
  • Figure 4 is a simplified circuit diagram of the device.
  • the display device comprises a plastics casing 1 , the front portion 2 of which is moulded in a transparent material to enclose an array 3 of LEDs arranged so as to be capable of alternatively displaying one of three different mes- sages, which in the example illustrated are SORRY, THANKS, and HELP.
  • SORRY SORRY
  • THANKS THANKS
  • HELP HELP
  • the invention is not limited to the use of LEDs, arrays of other types of lamp being possible, as well as other arrangements to display symbols or words, for example illuminated masks or liquid crystal displays.
  • the casing is rotatably mounted between two mounting brackets 4, each of which has a flat surface 5 by which, using resilient self-adhesive pads, for example, the brackets may be securely mounted on the inside surface of a window of the vehicle, preferably the rear window or windscreen.
  • the mounting brackets 4 When the mounting brackets 4 have been attached to the window, the casing is rotated to ensure that the LED array 3 can be seen at the eye level of other motorists who might be following the vehicle in which the device is mounted.
  • a hand-held remote control device 7 Attached to the display device 1 by means of a flexible insulated cable 6 is a hand-held remote control device 7, as shown in Figure 2.
  • the device 7 has a second flexible cable 8 attached thereto, the cable 8 having a plug (not shown) at the end thereof which provides an electrical power connection to a power output socket in the car, for example that used for an electric cigarette lighter of the type found in most motor cars.
  • the cable 8 thus provides the power for operation of the remote control device and the display device.
  • the remote control device 7 is provided with three press-buttons 9, 10 and 1 1 , each of which, when pressed, causes a respective one of the three selected messages to be displayed by the display device.
  • the press-buttons 9, 10 and 1 1 are shaped and positioned so that the user may readily distinguish between them by feel alone, although they are also differently-coloured to distinguish them from each other, and have the relevant messages printed alongside them.
  • a warning lamp 12 is also set into the unit 7 to confirm, when any of the buttons 9-1 1 is pressed, that the display device is operating correctly.
  • each mounting bracket 4 is formed with a plug 13 extending therefrom with an enlarged domed end 14.
  • the plug is received in a socket 15 in the respective end of the body of the display device, the socket 15 having moulded into its opposed sides a recess 16, the opposed recesses 16 each supporting a shaped block 17 of a resiliently-compressible material, for example of a hard elastomer.
  • the blocks 17 each have a semi-circular recess therein which, in use, bears against and grips a side of the plug 13, retaining it, with the aid of the flange 14, within the socket 15 unless an axial outward force is applied to the plug above a predetermined level.
  • the blocks 17 exert friction on the plug 13, preventing it from rotating freely, but instead allowing it only to be rotated when the user applies a rotational force to the body above a predetermined level sufficient to ensure that, in use, the display device remains in the chosen orientation and is not caused to rotate out of position by the vibration or shocks experienced during motion of the vehicle.
  • each push-button in the remote control unit is connected to the display device through a separate control wire 20, 21 or 22 within the cable 6, a common ground wire 23 being provided to complete the circuit in each case.
  • a button 9, 10 or 1 1 is pressed, the circuit is closed to send a signal to a respective latching circuit 24, 25 or 26 which sends a control voltage to a respective relay 27, 28 or 29 in the display device 1 for a predetermined period, causing the relay to close and to cause a current flow through a predetermined group 30, 31 or 32 of the LEDs, in a pattern corresponding to the chosen word.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

A vehicle signalling system comprises a display means (1) arranged to display any of a plurality of predetermined messages or symbols, means (4) for attaching the display means to the inside surface of a vehicle window so that the display means may be viewed from outside the vehicle, and a remote control unit (7) having means (9, 10 and 11) for selecting the message or symbol to be displayed by the display means and signalling to the display means to display the selected message or symbol.

Description

VEHICLE SIGNALLING SYSTEM Field of the invention
This invention relates to a signalling system for use in a road vehicle for selectively displaying messages and/or symbols to other road users. Background to the Invention
As road use increases, the driving of vehicles becomes increasingly stressful. Violent and aggressive driving, often referred to as 'road rage', is also becoming increasingly common, perhaps as a result. The majority of violent and aggressive acts on the road arise from criticism, reaction to criticism and miscommunication between driv- ers.
Traditionally, hand gestures have been used to indicate thanks to another driver who has, for example, let another driver pull out of a side road or change lane on a motorway. When a driver is thanked, it reinforces helpful driving, and both drivers are then more likely to be considerate of other road users. Unfortunately, hand gestures of thanks can be open to misinterpretation, especially since most insulting gestures between drivers also involve the use of hands.
A large number of road rage incidents occur because of one driver's reaction to another driver's error. Pulling out too closely in front of another car, or failing to indicate when changing lanes are typical acts which can annoy other motorists. While the intention behind these manoeuvres is not aggressive, drivers often react angrily to criticism. If a driver is able immediately to acknowledge his or her mistake, then the situation is defused. Even if another driver expresses displeasure at an error, an admission of being in the wrong will end a potentially aggressive situation. However, there is no universally understood hand gesture which will convey an apology without risk of misin- terpretation.
There is therefore a need for some means of easily signalling different messages to other drivers clearly and unambiguously.
While signalling systems for motor vehicles are known, for example taxi 'for hire' signs, and those used in police vehicles to signal another driver to stop, these are installed when the vehicle is modified for police use and are not readily applicable to private vehicles. Summary of the Invention
According to the invention, there is provided a vehicle signalling system, comprising a display means arranged to display any of a plurality of predetermined messages or symbols, means for attaching the display means to the inside surface of a vehicle win- dow so that the display means may be viewed from outside the vehicle, and a remote control unit having means for selecting the message or symbol to be displayed by the display means and signalling to the display means to display the selected message or symbol.
Preferably, the display means is connected to the remote control unit by a trail- ing wire or wires. The remote control unit may also be connectable to the vehicle's battery by way of a separate wire or wires, for example having a plug to establish an electrical connection with an outlet such as a cigarette lighter socket. In an alternative embodiment, the remote control unit has no physical connection to the display means, but instead signals to the display means by infra red or radio signals. The display means may therefore be provided in this embodiment with internal batteries. The batteries may be replaceable dry cells, removable rechargeable cells, or even cells recharged by solar panels mounted on or near the display means.
The remote control unit preferably has separate buttons or other touch- responsive areas for each message or symbol to be displayed by the display means, to simplify operation and therefore minimise distraction for the driver. The control unit may be shaped so that the driver may readily distinguish the different control buttons or areas by touch, but they may also be colour-coded as well as having identifying words and/or symbols thereon. As the control unit is not fixed to the vehicle or built in to the vehicle's existing controls, it can readily be placed in a position convenient to the indi- vidual driver, thus enabling him or her to use the control quickly in circumstances where a rapid reaction is required, either to say SORRY or THANKS. In addition to these two words (or symbols conveying the same ideas) other words may be provided for, such as HELP, to summon help when stranded, but it is desirable that the number of choices is kept to a minimum, to ensure that the device is straightforward to operate. Where vehicle construction and use regulations permit, the display can also serve as an additional brake warning light visible in the rear window of a vehicle. This may be achieved by providing the device with separate lights linked to the vehicle's braking system, or by providing a matrix of individual lights, such as light-emitting diodes (LEDs), which can be selectively switched on and off to display different words or symbols , all the lights in the array being lit when the brake-warning function is oper- ated.
The display means is preferably configured as a body rotatably mounted between two brackets which attach adhesively to the surface of the window, for example by resilient adhesive pads. The brackets preferably are each provided with a plug formation insertable into a socket in the respective end of the body of the display means. The plugs are preferably held in place by resilient means within the socket. The resilient means preferably comprise radially-directed resilient members bearing inwardly on the plugs so as to ensure that there is sufficient friction on the plugs to hold the display means, in use, at the selected orientation relative to the window so that the displayed message or symbol is readily visible to other motorists. The device of the invention is simple to install in a vehicle without the use of tools, and may therefore be sold as an accessory for installation by the user, rather than having to be installed during construction of the vehicle. Brief Description of the Drawings
In the drawings, which illustrate an exemplary embodiment of the invention: Figure 1 is a perspective view of the display device;
Figure 2 is a perspective view of the remote control unit;
Figure 3 is an enlarged cross-sectional elevation of the connection between a mounting bracket and one half of the body of the display device, the other half being omitted for the sake of clarity; and Figure 4 is a simplified circuit diagram of the device.
Detailed Description of the Illustrated Embodiment
Referring first to Figure 1 , the display device comprises a plastics casing 1 , the front portion 2 of which is moulded in a transparent material to enclose an array 3 of LEDs arranged so as to be capable of alternatively displaying one of three different mes- sages, which in the example illustrated are SORRY, THANKS, and HELP. By illuminating different combinations of LEDs, the different messages become visible. It will be ap- preciated that the invention is not limited to the use of LEDs, arrays of other types of lamp being possible, as well as other arrangements to display symbols or words, for example illuminated masks or liquid crystal displays.
The casing is rotatably mounted between two mounting brackets 4, each of which has a flat surface 5 by which, using resilient self-adhesive pads, for example, the brackets may be securely mounted on the inside surface of a window of the vehicle, preferably the rear window or windscreen. When the mounting brackets 4 have been attached to the window, the casing is rotated to ensure that the LED array 3 can be seen at the eye level of other motorists who might be following the vehicle in which the device is mounted.
Attached to the display device 1 by means of a flexible insulated cable 6 is a hand-held remote control device 7, as shown in Figure 2. The device 7 has a second flexible cable 8 attached thereto, the cable 8 having a plug (not shown) at the end thereof which provides an electrical power connection to a power output socket in the car, for example that used for an electric cigarette lighter of the type found in most motor cars. The cable 8 thus provides the power for operation of the remote control device and the display device.
The remote control device 7 is provided with three press-buttons 9, 10 and 1 1 , each of which, when pressed, causes a respective one of the three selected messages to be displayed by the display device. The press-buttons 9, 10 and 1 1 are shaped and positioned so that the user may readily distinguish between them by feel alone, although they are also differently-coloured to distinguish them from each other, and have the relevant messages printed alongside them. A warning lamp 12 is also set into the unit 7 to confirm, when any of the buttons 9-1 1 is pressed, that the display device is operating correctly.
Referring now to Figure 3, each mounting bracket 4 is formed with a plug 13 extending therefrom with an enlarged domed end 14. The plug is received in a socket 15 in the respective end of the body of the display device, the socket 15 having moulded into its opposed sides a recess 16, the opposed recesses 16 each supporting a shaped block 17 of a resiliently-compressible material, for example of a hard elastomer. The blocks 17 each have a semi-circular recess therein which, in use, bears against and grips a side of the plug 13, retaining it, with the aid of the flange 14, within the socket 15 unless an axial outward force is applied to the plug above a predetermined level. In addition, the blocks 17 exert friction on the plug 13, preventing it from rotating freely, but instead allowing it only to be rotated when the user applies a rotational force to the body above a predetermined level sufficient to ensure that, in use, the display device remains in the chosen orientation and is not caused to rotate out of position by the vibration or shocks experienced during motion of the vehicle.
The circuit diagram shown in Figure 4 shows that each push-button in the remote control unit is connected to the display device through a separate control wire 20, 21 or 22 within the cable 6, a common ground wire 23 being provided to complete the circuit in each case. When a button 9, 10 or 1 1 is pressed, the circuit is closed to send a signal to a respective latching circuit 24, 25 or 26 which sends a control voltage to a respective relay 27, 28 or 29 in the display device 1 for a predetermined period, causing the relay to close and to cause a current flow through a predetermined group 30, 31 or 32 of the LEDs, in a pattern corresponding to the chosen word. It will be appreciated that by careful positioning of the LEDs, certain of them can be used for more than one word, reducing costs and simplifying the circuit board upon which they are mounted. After the predetermined delay from pressing the button, the control voltage is dropped, allowing the relay to open and the LED array to be switched off.

Claims

1. A vehicle signalling system, comprising a display means arranged to display any of a plurality of predetermined messages or symbols, means for attaching the display means to the inside surface of a vehicle window so that the display means may be viewed from outside the vehicle, and a remote control unit having means for selecting the message or symbol to be displayed by the display means and signalling to the display means to display the selected message or symbol.
2. A vehicle signalling system according to Claim 1, wherein the display means is connected to the remote control unit by a trailing wire or wires.
3. A vehicle signalling system according to Claim 2, wherein the remote control unit is connectable to the vehicle's battery by way of a separate wire or wires
4. A vehicle signalling system according to Claim 1 , 2 or 3, wherein the remote control unit has separate buttons or other touch-responsive areas for each message or symbol to be displayed by the display means.
5. A vehicle signalling system according to Claim 4, wherein the control unit is shaped so that the user may readily distinguish the different control buttons or areas by touch.
6. A vehicle signalling system according to Claim 4 or 5, wherein the buttons or areas are colour-coded to distinguish one from another.
7. A vehicle signalling system according to Claim 4, 5 or 6, wherein the control unit has words and/or symbols thereon identifying the buttons or areas.
8. A vehicle signalling system according to any preceding claim, wherein the display means comprises an array of lamps selectively illuminable to display different messages or symbols.
9. A vehicle signalling device according to Claim 8, wherein the lamps are light-emitting diodes.
10. A vehicle signalling device according to any preceding claim, wherein the display means is configured as a body rotatably mounted between two brackets which attach adhesively to the surface of a window.
1 1. A vehicle signalling device according to Claim 10, wherein the brackets are each provided with a plug formation insertable into a socket in the respective end of the body of the display means.
12. A vehicle signalling device according to Claim 1 1 , wherein the plugs are held in place by resilient means within the socket.
13. A vehicle signalling device according to Claim 12, wherein the resilient means comprise radially-directed resilient members bearing inwardly on the plugs.
PCT/GB1998/001292 1997-05-21 1998-05-01 Vehicle signalling system WO1998052789A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU73423/98A AU7342398A (en) 1997-05-21 1998-05-01 Vehicle signalling system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9710299.0 1997-05-21
GBGB9710299.0A GB9710299D0 (en) 1997-05-21 1997-05-21 Vehicle brake light system

Publications (1)

Publication Number Publication Date
WO1998052789A1 true WO1998052789A1 (en) 1998-11-26

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ID=10812682

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/001292 WO1998052789A1 (en) 1997-05-21 1998-05-01 Vehicle signalling system

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AU (1) AU7342398A (en)
GB (1) GB9710299D0 (en)
WO (1) WO1998052789A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6243685B1 (en) 1999-02-08 2001-06-05 Rick C. Bergman Voice operated interactive message display system for vehicles
GB2359915A (en) * 2000-03-01 2001-09-05 David William Walsh Information display for vehicle drivers

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3127941A1 (en) * 1981-07-15 1983-02-03 Fritz 7513 Stutensee Seeger Electro-optical illuminated panel
US4574269A (en) * 1985-04-10 1986-03-04 Miller Gregory R Vehicle communicator
US4602320A (en) * 1985-02-21 1986-07-22 Redondo Investment Limited Adjustable safety lamp for vehicle windows
US4928084A (en) * 1989-01-23 1990-05-22 Reiser Steven M Combined message display and brake light
US4974354A (en) * 1989-04-21 1990-12-04 Hembrook Jr Norbert Visual display device for vehicles
EP0511494A2 (en) * 1991-03-29 1992-11-04 Franco Menichini A multi-purpose signalling device for vehicles, in particular cars
US5426414A (en) * 1993-11-10 1995-06-20 Flatin; Jerry Enhanced auxiliary signaling device
DE4431190A1 (en) * 1994-09-01 1996-03-07 Schmidt Andrea Constanze Device for visual on-the-road communication between automobiles, trucks etc
US5500638A (en) * 1994-01-26 1996-03-19 George; Ikoma A. V. Vehicular goodwill message system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3127941A1 (en) * 1981-07-15 1983-02-03 Fritz 7513 Stutensee Seeger Electro-optical illuminated panel
US4602320A (en) * 1985-02-21 1986-07-22 Redondo Investment Limited Adjustable safety lamp for vehicle windows
US4574269A (en) * 1985-04-10 1986-03-04 Miller Gregory R Vehicle communicator
US4928084A (en) * 1989-01-23 1990-05-22 Reiser Steven M Combined message display and brake light
US4974354A (en) * 1989-04-21 1990-12-04 Hembrook Jr Norbert Visual display device for vehicles
EP0511494A2 (en) * 1991-03-29 1992-11-04 Franco Menichini A multi-purpose signalling device for vehicles, in particular cars
US5426414A (en) * 1993-11-10 1995-06-20 Flatin; Jerry Enhanced auxiliary signaling device
US5500638A (en) * 1994-01-26 1996-03-19 George; Ikoma A. V. Vehicular goodwill message system
DE4431190A1 (en) * 1994-09-01 1996-03-07 Schmidt Andrea Constanze Device for visual on-the-road communication between automobiles, trucks etc

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6243685B1 (en) 1999-02-08 2001-06-05 Rick C. Bergman Voice operated interactive message display system for vehicles
GB2359915A (en) * 2000-03-01 2001-09-05 David William Walsh Information display for vehicle drivers

Also Published As

Publication number Publication date
AU7342398A (en) 1998-12-11
GB9710299D0 (en) 1997-07-16

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