EP0135551A1 - Tailgating prevention apparatus - Google Patents
Tailgating prevention apparatusInfo
- Publication number
- EP0135551A1 EP0135551A1 EP84900932A EP84900932A EP0135551A1 EP 0135551 A1 EP0135551 A1 EP 0135551A1 EP 84900932 A EP84900932 A EP 84900932A EP 84900932 A EP84900932 A EP 84900932A EP 0135551 A1 EP0135551 A1 EP 0135551A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- type
- provisioned
- speed
- motion detecting
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/07—Indicating devices, e.g. for remote indication
- G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
Definitions
- TAILGATING PREVENTION APPARATUS Summary of invention The primary objective of this instant invention is to provision a motor vehicle with motion detecting (transceiver) type apparatus, such as: Radar, Photoelectric, Ultrasonic, Passive Infrared, or Microwave, etc.
- motion detecting (transceiver) type apparatus such as: Radar, Photoelectric, Ultrasonic, Passive Infrared, or Microwave, etc.
- a switch-means located within the said motion detecting device which will instantly dis ⁇ charge a signal to detect any other vehicle directly within its path and/or, range -- and, simultaneously emit a warning signal to the operator of said vehicle, in the event that he is too close and traveling too fast to stop should an unexpect ⁇ ed emergency arise.
- Another object of said invention is to provision a vehi ⁇ cle with speed calculating apparatus (i.e., speedometer) which is calibrated to operate in conjunction with the range and sensitivity controls of a motion detecting apparatus — so that, whenever the operator of a vehicle (so provisioned) moves within a predetermined and designated 'danger-zone' behind a preceeding vehicle, sai'd operator will be given a warning signal;
- Said speed calculating apparatus and the range control of the motion detecting device is to be so calibrated that movement of the speed-indicator (i.e., speedometer needle) will, both: I.- automatically energize (i.e., switch-on) the said motion detecting apparatus whenever a certain speed is
- Still yet another object of said invention is to cali ⁇ brate the above described apparatus, so that: both the Sensi ⁇ tivity and Range controls are locked-in (according to pre ⁇ scribed Department of Motor Vehicles' safety Speed and Range standard specifications)— so as to give a warning signal alerting the operator of a moving vehicle, whenever said operator might occasionally and/or, accidently exceed the pre ⁇ determined safety margin as established by said D.M.V. , supra...
- An additional object of said invention is to provide a (mechanically-operated) speedometer, connected by means of a flexible drive cable from the gearbox tail shaft of the transmission(or such other suitable location), provisioned with a variable resistor means — so that said speedometer will function and operate in similar fashion to a rheostat or potentiometer; And, to connect said speedometer in parallel with the Range and/or. Sensitivity Controls of a motion de ⁇ tecting apparatus; So that. Movement of the vehicle at speeds in excess of 35 m.p.h. provide mechanical displacement which, in turn, activates a potentiometer device by means of a cable attached to the transmission (built within a speedometer) which then converts said displacement into an electrical signal. This signal is then transmitted by wire to the transducers located within the transceiver and adjusts the range of de ⁇ tection according to the rate of speed at which said vehicle is traveling.
- a further objective of said invention is to connect such motion detecting (transceiver) apparatus to the vehicle's power source; and, to provision such device with a warning 'Buzzer' or other signalling means.
- a further object of said invention is to, provision all new vehicles with this safe-guard apparatus, before said vehicles leave the factory; And/or, provision vehicles present ⁇ ly in service with this said safe-guard device by means of either replacing their speedometers or by adding an additional speedometer — and, to calibrate said replacement or additional speedometer by fully magnetizing the magnets therein and then demagnetizing them until the desired readings and/or ratios have been obtained.
- SUBSTITUTE SHEET ' of said transmitter-receiver, supervisory circuitry and power supply fit into one small 3 3/4 X 4 inch space.
- the unit also contains a pulse-modulated solid-state light source whose life rating is in excess of 25 years; It has an adjustable range from 3 to 75 feet; And, the beam may be aimed at a bounce- back reflector.
- Said unit is therefore capable of reaching out with an invisible beam so as to detect the presence of any vehicle within its path and range; Simply by aiming the beam at a bounce-back reflector — since said reflector, without any adjustment of any kind, bounces the invisible beam from the transmitter back to the receiver...
- Fig. 1 illustrates a procession of four (4) vehicles (A-I, A-2, A-3, and A-4) travelling along a length of highway at varied distances apart.
- A-5 represents the beam or waves which may be emitted from the antenna of a motion detecting (transceiver) apparatus (such as: Radar, Photoelectric, Ultra ⁇ sonic, Infrared or Microwave, etc.), which might be located within the front section of an automobile.
- a motion detecting (transceiver) apparatus such as: Radar, Photoelectric, Ultra ⁇ sonic, Infrared or Microwave, etc.
- Fig. 2 shows a specially designed and constructed speedo ⁇ meter, provisioned with a strip of electric conducting material B-I — secured to a portion of the face of said speedometer by non-electric conducting means;
- B-2 shows an electric conducting lead B-3 connected at said junction B-2;
- B-4 represents a speed indicator needle (or finger) provisioned with a small nipple-contact (B-5) secured to the underside thereof, further connected by (insulated) electric conducting means (B-6) to lead B-7...
- Fig. 3 illustrates (generally) amotion detecting (trans ⁇ ceiver apparatus provisioned with an alarm (Buzzer) signalling means C-I (further marked with a large letter 'B'); Buzzer ('B') C-I is further shown connected by two (2) leads C-2 and C-3 to terminal (junction) points 4 and 5 — located within said motion detecting (transceiver) apparatus; Terminal point #5, here, represents 'Relay, Common 1 ; And, whereas, terminal point #4 represents 'Relay, Normall-open' . Terminal points #1 and #2 are connected directly to the primary (vehicle)
- SUBSTITUTE SHEET ( /jf - ⁇ ? ⁇ power supply (and, may also be used to recharge the stand-by auxiliary battery, power pack, contained within the said motion detecting apparatus) .
- C-4 represents a manually operated Sensitivity ⁇ 'S') control means;
- C-5 (figs. and ) shows a manually operated Range ('R') control means - with two leads C-6 and C-7, which may be connected to leads B-3 and B-7, des ⁇ cribed and referred to previously above.
- C-8 represents the antenna which emits a beam or wave #C-9...
- Fig. 4 illustrates an enlarged view of the manually operated Range ('R') control means C-5 shown in 'Fig. 3'; and, shows the manner in which leads C-6 and C-7 may be con ⁇ nected in parallel with the said Range ('R') control apparatus #C-5 — so that, even when said control C-5 may be manually switched-off, the input to the integrator and range control portion of the motion detecting (transceiver) apparatus may still be transmitted by means of the said parallel connecting leads #C-6 and C-7...
- a significant feature is that the device is designed to operate automatically — so that, while the motion detecting (trans ⁇ ceiver) device would normally remain dormant during normal City use; Still, as soon as the predetermined (danger) speed
- the speedometer will automatically switch-on the motion detecting device which has been pre-set to detect any other vehicle within its path
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
- Traffic Control Systems (AREA)
Abstract
Dispositif amélioré grâce auquel le chauffeur d'un véhicule à moteur peut être averti (C-1) lorsque le véhicule, en fonction de la vitesse à laquelle il se déplace, roule à une distance trop rapprochée d'un autre véhicule. Le chauffeur peut actionner les freins et arrêter à temps de manière à empêcher une collision ou un accident. Le système utilise un appareil de détection de mouvement incorporé dans le véhicule et travaillant en combinaison avec un compteur de vitesse spécialement construit (B), qui mesure la vitesse, calcule la distance relative entre les deux véhicules, émet automatiquement un rayon (C-9), une onde ou un signal de détection permettant de détecter tout véhicule dangereusement proche sur sa trajectoire et produit un signal d'avertissement (C-1).Improved device by which the driver of a motor vehicle can be notified (C-1) when the vehicle, depending on the speed at which it is traveling, is traveling too close to another vehicle. The driver can apply the brakes and stop in time to prevent a collision or accident. The system uses a motion detection device incorporated in the vehicle and working in combination with a specially constructed speedometer (B), which measures speed, calculates the relative distance between the two vehicles, automatically emits a ray (C-9 ), a wave or a detection signal making it possible to detect any dangerously close vehicle on its trajectory and produces a warning signal (C-1).
Description
TAILGATING PREVENTION APPARATUS Summary of invention The primary objective of this instant invention is to provision a motor vehicle with motion detecting (transceiver) type apparatus, such as: Radar, Photoelectric, Ultrasonic, Passive Infrared, or Microwave, etc. , connected and co-oper¬ able with a specially designed and constructed speedometer— so that, whenever the speed of such vehicle reaches a certain designated, predetermined rate, a switch-means (located within the said motion detecting device) which will instantly dis¬ charge a signal to detect any other vehicle directly within its path and/or, range -- and, simultaneously emit a warning signal to the operator of said vehicle, in the event that he is too close and traveling too fast to stop should an unexpect¬ ed emergency arise.
Another object of said invention is to provision a vehi¬ cle with speed calculating apparatus (i.e., speedometer) which is calibrated to operate in conjunction with the range and sensitivity controls of a motion detecting apparatus — so that, whenever the operator of a vehicle (so provisioned) moves within a predetermined and designated 'danger-zone' behind a preceeding vehicle, sai'd operator will be given a warning signal; Said speed calculating apparatus and the range control of the motion detecting device is to be so calibrated that movement of the speed-indicator (i.e., speedometer needle) will, both: I.- automatically energize (i.e., switch-on) the said motion detecting apparatus whenever a certain speed is
SUBSTITUTE SHEET - O PI
attained; and, 2.- control the range of detection according to the relative speed of the vehicle so provisioned.
Still yet another object of said invention is to cali¬ brate the above described apparatus, so that: both the Sensi¬ tivity and Range controls are locked-in (according to pre¬ scribed Department of Motor Vehicles' safety Speed and Range standard specifications)— so as to give a warning signal alerting the operator of a moving vehicle, whenever said operator might occasionally and/or, accidently exceed the pre¬ determined safety margin as established by said D.M.V. , supra...
An additional object of said invention is to provide a (mechanically-operated) speedometer, connected by means of a flexible drive cable from the gearbox tail shaft of the transmission(or such other suitable location), provisioned with a variable resistor means — so that said speedometer will function and operate in similar fashion to a rheostat or potentiometer; And, to connect said speedometer in parallel with the Range and/or. Sensitivity Controls of a motion de¬ tecting apparatus; So that. Movement of the vehicle at speeds in excess of 35 m.p.h. provide mechanical displacement which, in turn, activates a potentiometer device by means of a cable attached to the transmission (built within a speedometer) which then converts said displacement into an electrical signal. This signal is then transmitted by wire to the transducers located within the transceiver and adjusts the range of de¬ tection according to the rate of speed at which said vehicle
is traveling.
A further objective of said invention is to connect such motion detecting (transceiver) apparatus to the vehicle's power source; and, to provision such device with a warning 'Buzzer' or other signalling means.
A further object of said invention is to, provision all new vehicles with this safe-guard apparatus, before said vehicles leave the factory; And/or, provision vehicles present¬ ly in service with this said safe-guard device by means of either replacing their speedometers or by adding an additional speedometer — and, to calibrate said replacement or additional speedometer by fully magnetizing the magnets therein and then demagnetizing them until the desired readings and/or ratios have been obtained.
It is important to note, here, that: While there may be a wide (vast) variety of detecting type apparatus presently on the market, being developed and/or, that will or may be developed; All such detecting apparatus (if, and when, utilized to achieve the results and purposes of this instant invention) must utilize the basic, inherent co-operable features, rela¬ tionships and means contemplated by this instant invention. For example, it would be possible to utilize a "Photoelectric System' , similar to the No. 1355 "Single-ended" transceiver; Said system is a completely solid-state pulsed beam (intrusion) detector — and is said to be the latest and most advanced single-ended photoelectric system developed by 'Ademco1 Manufacturing Corporation of New York. All of the components
T&E ϊ
SUBSTITUTE SHEET ' ^
of said transmitter-receiver, supervisory circuitry and power supply fit into one small 3 3/4 X 4 inch space. The unit also contains a pulse-modulated solid-state light source whose life rating is in excess of 25 years; It has an adjustable range from 3 to 75 feet; And, the beam may be aimed at a bounce- back reflector. Said unit is therefore capable of reaching out with an invisible beam so as to detect the presence of any vehicle within its path and range; Simply by aiming the beam at a bounce-back reflector — since said reflector, without any adjustment of any kind, bounces the invisible beam from the transmitter back to the receiver... Of course, it would probably develop into a situation where each car owner would be personally responsible for his own rear-end — so to speak, if photoelectric means should be employed in this regard.
Another example may be noticed in the field of 'Optoelectronics', where much research still goes on with regard to the improvement of detectors which use light emitt¬ ing diodes and Lasers, which produce a very intense narrow beam of light, in range finding; And, especially for civilian applications under the name 'tellurometers' . One method employed by such detectors for determining range measures the time difference between an outgoing light pulse and the arrival of the reflected pulse from the target.
Other objects, advantages, features and novel aspects of the invention reside in certain detailes of construction as well as the co-operative relationship of the various parts
'SUBSTITUT — - O PI
of the illustrative imbodiment described hereinafter in view of the annexed drawings, in which:
Fig. 1 illustrates a procession of four (4) vehicles (A-I, A-2, A-3, and A-4) travelling along a length of highway at varied distances apart. A-5 represents the beam or waves which may be emitted from the antenna of a motion detecting (transceiver) apparatus (such as: Radar, Photoelectric, Ultra¬ sonic, Infrared or Microwave, etc.), which might be located within the front section of an automobile.
Fig. 2 shows a specially designed and constructed speedo¬ meter, provisioned with a strip of electric conducting material B-I — secured to a portion of the face of said speedometer by non-electric conducting means; B-2 shows an electric conducting lead B-3 connected at said junction B-2; B-4 represents a speed indicator needle (or finger) provisioned with a small nipple-contact (B-5) secured to the underside thereof, further connected by (insulated) electric conducting means (B-6) to lead B-7...
Fig. 3 illustrates (generally) amotion detecting (trans¬ ceiver apparatus provisioned with an alarm (Buzzer) signalling means C-I (further marked with a large letter 'B'); Buzzer ('B') C-I is further shown connected by two (2) leads C-2 and C-3 to terminal (junction) points 4 and 5 — located within said motion detecting (transceiver) apparatus; Terminal point #5, here, represents 'Relay, Common1; And, whereas, terminal point #4 represents 'Relay, Normall-open' . Terminal points #1 and #2 are connected directly to the primary (vehicle)
SUBSTITUTE SHEET (/jf -^?§
power supply (and, may also be used to recharge the stand-by auxiliary battery, power pack, contained within the said motion detecting apparatus) . C-4 represents a manually operated Sensitivity {'S') control means; And, C-5 (figs. and ) shows a manually operated Range ('R') control means - with two leads C-6 and C-7, which may be connected to leads B-3 and B-7, des¬ cribed and referred to previously above. C-8 represents the antenna which emits a beam or wave #C-9...
Fig. 4 illustrates an enlarged view of the manually operated Range ('R') control means C-5 shown in 'Fig. 3'; and, shows the manner in which leads C-6 and C-7 may be con¬ nected in parallel with the said Range ('R') control apparatus #C-5 — so that, even when said control C-5 may be manually switched-off, the input to the integrator and range control portion of the motion detecting (transceiver) apparatus may still be transmitted by means of the said parallel connecting leads #C-6 and C-7...
Obviously, then, whenever a vehicle provisioned with this instant invention is put into use it will provide the operator with a significant margin of safety heretofore not provided. A significant feature is that the device is designed to operate automatically — so that, while the motion detecting (trans¬ ceiver) device would normally remain dormant during normal City use; Still, as soon as the predetermined (danger) speed
(here, set at M.P.H.) has been attained, the speedometer will automatically switch-on the motion detecting device which has been pre-set to detect any other vehicle within its path
SUBSTITUTE SHEET , O
and range... Then, should our operator increase his speed (movement of the speedometer needle will instantly decrease the resistance within the potentiometer, and) the range of detection will automatically increase in like proportion — as previously calibrated; Whenever a potentially dangerous condition develops, a warning signal will immediately alert the operator; Of course, as soon as speed is reduced below the pre-set danger speed the motion detecting device will automatically shut-off and become dormant — until it is again called-upon by an increase in speed.
After reading the preceeding specification and scrutinizing the appended drawings it may appear that the various advantages and objects of the invention might be accomplished by modifications of the particular embodiment specifically described herein; and it is intended that the annexed claims shall include all equivalent arrangements fairly coming within their call.
SUBSTITUTE SH
Claims
Having thus described my invention what I claim as new and desire to protect by letters patent is:
I.- In automatic, automotive sensing and/or detecting 'Tailgating Prevention Apparatus' of the class and type hereto¬ fore setforth, described, and referred to within the preceed- ing specification and annexed drawings; A motor vehicle pro¬ visioned with a motion detecting and/or sensing device, co- acting, • co-operable and connected in conjunction with a speedometer type device which is so designed and constructed that it operates and functions in similar fashion to a var¬ iable resistor (in the capacity of either a rheostat or a potentiometer) ; so that, when connected in parallel with the (manually operated) Sensitivity and/or Range Controls of the said motion detecting device, the combined unit will sense or detect any other vehicle within its path and range whenever accident-causing speed conditions shall develop — and, to then cause a warning signal to alert the operator of said vehicle.
2.- In automatic, automotive sensing and/or detecting 'Tailgating Prevention Apparatus' of the type and class hereto¬ fore setforth, described, and referred to within the pre- ceeding specification and annexed drawings; A gauge (or instru¬ ment) provisioned with a variable resistor type mechanism which, when connected by cable means to the transmission of an automobile, etc. , measures the rate of speed at which said vehicle is traveling; and, by means of electrical con-
- ϊZEX - - -- . OMPI tacts transmits said movement in the form of an electrical signal through the wires connected in parallel with the Sensi¬ tivity and/or Range controls of a co-acting motion detecting transceiver.
3.- In 'Tailgating Prevention Apparatus* of the class & type heretofore setforth, described, and referred to within the preceeding specification and annexed drawings; A motor vehicle provisioned with a motion detecting (transceiver) type device connected in conjunction with a speed measuring type apparatus — so that whenever a vehicle is traveling too close and fast behind another vehicle a warning signal alerts the operator of said vehicle to the potential danger.
4.- In Tailgating Prevention Apparatus' of the type and class heretofore setforth, described, and referred to within the preceeding specification and annexed drawings; A motor vehicle provisioned with either or both; I.- An automatically operated 'Photoelectric' transceiver type apparatus secured within the front end of said vehicle so as to detect any other vehicle in its path whenever the so provisioned vehicle reaches a predetermined rate of speed; and, 2.- A strip of Photoelectric reflecting material secured to the back portion of such vehicle.
5.- A motor vehicle provisioned with any of the above described type apparatus co-acting and functioning in such a manner as to achieve the results described and desired within
- U £ SUBSTITUTE SHEET ' - MH this instant patent application.
6.- Any combination or rearrangement of the above described type apparatus which will achieve the same end result as anticipated by this instant patent application.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/467,368 US4635123A (en) | 1982-02-26 | 1983-02-17 | Image pick-up device for use with an illuminating device |
| US467368 | 1983-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0135551A1 true EP0135551A1 (en) | 1985-04-03 |
Family
ID=23855412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84900932A Withdrawn EP0135551A1 (en) | 1983-02-17 | 1984-01-31 | Tailgating prevention apparatus |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0135551A1 (en) |
| WO (1) | WO1984003383A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4861976A (en) * | 1988-06-06 | 1989-08-29 | American Telephone And Telegraph Company, At&T Bell Laboratories | Optical or opto-electronic device having a trapping layer in contact with a semiconductive layer |
| GB2222710A (en) * | 1988-09-09 | 1990-03-14 | John Home | Vehicle monitoring systems |
| DE4317831C1 (en) * | 1993-05-28 | 1994-07-07 | Daimler Benz Ag | Display to show the danger of the current driving situation of a motor vehicle |
| CN113628476B (en) * | 2021-06-24 | 2022-10-21 | 山东高速股份有限公司 | Method for preventing vehicles on highway from rear-end collision |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662328A (en) * | 1969-04-30 | 1972-05-09 | David Spivak | Apparatus for determining the proximity of moving vehicles |
| DE2156001B2 (en) * | 1971-11-11 | 1975-10-16 | Daimler-Benz Ag, 7000 Stuttgart | Distance warning device for vehicles |
| US4026654A (en) * | 1972-10-09 | 1977-05-31 | Engins Matra | System for detecting the presence of a possibly moving object |
| JPS5728911B2 (en) * | 1974-02-11 | 1982-06-19 | ||
| US4015232A (en) * | 1975-08-05 | 1977-03-29 | Thomas Sindle | Ultrasonic distance detector for vehicles |
-
1984
- 1984-01-31 WO PCT/US1984/000146 patent/WO1984003383A1/en unknown
- 1984-01-31 EP EP84900932A patent/EP0135551A1/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8403383A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1984003383A1 (en) | 1984-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6326887B1 (en) | Vehicle parking aid system | |
| US5905457A (en) | Vehicle radar safety apparatus | |
| US5701122A (en) | Electronic curb feeler | |
| US4833469A (en) | Obstacle proximity detector for moving vehicles and method for use thereof | |
| US4015232A (en) | Ultrasonic distance detector for vehicles | |
| US6014601A (en) | Driver alert system | |
| US3760414A (en) | Base band vehicle safety apparatus | |
| US6094148A (en) | Vehicular emergency vehicle alarm apparatus | |
| KR950703158A (en) | SMART BLIND SPOT SENSOR | |
| US5659290A (en) | Speed minder | |
| US5568137A (en) | Vehicle lane guide and alerting device | |
| US20030210173A1 (en) | Device for searching a parking space | |
| AU6315796A (en) | Obstacle detection system for vehicles moving in reverse | |
| JPH03277988A (en) | Apparatus for controlling distance between cars | |
| KR100349073B1 (en) | System for traffic information acquisition in vehicles | |
| JPS625878B2 (en) | ||
| WO2001047772A1 (en) | Icing detector for aircraft | |
| EP0135551A1 (en) | Tailgating prevention apparatus | |
| GB2260209A (en) | Braking distance indicating and warning device | |
| WO2001048726A1 (en) | Following distance warning system for a vehicle | |
| US2771597A (en) | Speed warning | |
| KR20040046088A (en) | The collision alarming system of vehicle and method thereof | |
| GB2034472A (en) | Vehicle warning device | |
| JPH0680436B2 (en) | Airborne particle detector | |
| GB2038132A (en) | Distance indicating system |
Legal Events
| 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 BE CH DE FR GB LI LU NL SE |
|
| 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: 19850122 |