Patents
Sitemap › G08 - Signalling › G08G - Traffic control systems › G08G 1 - Traffic control systems for road vehicles
Patents for G08G 1 - Traffic control systems for road vehicles (61,183)
10/1991
10/16/1991EP0451482A1 Car hire system
10/15/1991US5057831 Vehicle simulation circuit for loop traffic signal control system
10/15/1991US5056884 Fiber optic load sensing device
10/15/1991CA1290847C Vehicle antenna with shiftable gain patterns
10/12/1991WO1991015838A1 Method of determining optimal detection beam locations using reflective feature mapping
10/11/1991WO1991015788A1 Fiber optic switch
10/10/1991DE4011037A1 Traffic light system using solar energy - uses solar powers providing power in day and short wave radio signals to coordinate lights
10/09/1991EP0451117A2 An improved electronic safety device for trucks
10/09/1991EP0450426A1 Method for generating a signal to attract attention
10/09/1991EP0450160A2 Junction control apparatus with handling device for road traffic engineering
10/09/1991EP0449827A1 Digital data processing
10/08/1991US5055832 Display element with notched disk
10/08/1991CA1290428C Traffic monitoring device
10/06/1991CA2039282A1 Electronic safety device for trucks
10/05/1991CA2039671A1 Method for generating an attention attracting signal
10/02/1991CN1055074A Fully automatic highway traffic control method and system
10/01/1991US5053768 Golf cart control system
09/1991
09/26/1991DE4042258A1 Traffic light system with electronic and computer control - uses camera and/or other read device to monitor traffic conditions
09/24/1991US5052048 Crime deterrent system
09/19/1991WO1991014247A1 Mass-transit communication system
09/19/1991WO1991014154A1 Navigation system
09/19/1991DE4008460A1 Navigationssystem Navigation system
09/19/1991DE4007944A1 Vehicle speed limit indication memory device - has displays for different speed limits or traffic restrictions controlled via manual on-off buttons
09/19/1991DE4004816A1 Vehicle accident warning system - uses transmitter mounted on outside of each vehicle and receiver within each approaching vehicle
09/18/1991EP0446985A1 Method of transmitting radio data system signals with traffic program identification and receiver for such radio data system signals
09/18/1991EP0446519A2 Noncontact integrated circuit card
09/11/1991EP0446163A1 Inter-vehicle communication apparatus by means of infrared rays
09/11/1991EP0445907A2 A collision detector for a vehicle
09/11/1991EP0393089A4 Transponder
09/11/1991EP0390822A4 Identification apparatus and methods
09/10/1991US5047962 Event occurrence time and frequency detection and recording apparatus
09/05/1991WO1991013420A2 Vehicle-pedestrian communication system
09/05/1991WO1991013418A1 Traffic flow monitor apparatus
09/03/1991CA1288497C Prefabricated continuous road marking tape having optical and electromagnetic function
08/1991
08/29/1991DE4105180A1 Autonomous motor vehicle navigation system - records and plays back directional information using pulse trains to measure path lengths
08/28/1991EP0443644A1 Adaptive cruise control system
08/27/1991US5043850 Direction dependent line light source
08/27/1991CA1288135C Wideband device for transmitting informations and/or instructions between a mobile element and a control station
08/22/1991DE4005445A1 Car warning signal generator on aerial - provides warning signal with clear text, repeated cyclically on selected frequency in relevant frequency region
08/21/1991WO1991013419A2 Method and device for rationalizing private journeys
08/21/1991CN2083313U Intelligent collision avoidance display for automobiles
08/21/1991CA2053915A1 Method and device for rationalizing private journeys
08/20/1991US5041983 Method and apparatus for searching for route
08/20/1991US5041837 Directional antennas for a roadside beacon system
08/20/1991US5041828 Device for monitoring traffic violating and for recording traffic statistics
08/20/1991US5041762 Luminous panel
08/14/1991EP0441613A2 Fog warning device
08/14/1991EP0441576A2 Crash warning system
08/14/1991DE4003753A1 Bus stop information system - has on board transmitter to influence display to indicate delay
08/10/1991CA2036016A1 Crash warning system
08/07/1991EP0439489A1 Warning device in a motor vehicle for detection of unintentional change of course
07/1991
07/31/1991EP0438521A1 Vehicle status monitor and management system employing satellite communication.
07/26/1991CA2013073A1 Street crossing signal
07/24/1991EP0438250A1 System for reading and writing data from and into remote tags
07/23/1991WO1991010579A1 A parking-aid device
07/23/1991CA2074067A1 Parking-aid device
07/18/1991DE4000630A1 One-way street warning electronic system for vehicle - detecting vehicle direction with sensors along road and operating warning lights and road blocks
07/17/1991EP0437396A1 Management and control system for different independant apparatus
07/17/1991EP0437069A1 Direction dependent line light source
07/17/1991CN2081115U 多功能指挥棒 Multifunction baton
07/17/1991CN1053138A Scheme of automatic safety system operated by centrifugal force
07/16/1991US5032963 Lens for traffic lights and method of making same
07/16/1991CA1286390C Method of and system and apparatus for locating and/or tracking stolen or missing vehicles and the like
07/10/1991CN1052961A Multifunctional vehicle tester
07/09/1991US5030807 System for reading and writing data from and into remote tags
07/03/1991EP0435055A1 Time-measuring device for vehicles
07/02/1991US5029234 Mobile
07/02/1991US5028921 Vehicle detector method and system
07/02/1991CA1285542C Optical guidance system and apparatus
06/1991
06/30/1991WO1991010213A1 An autovehicle check system
06/30/1991CA2072600A1 Autovehicle check system
06/27/1991WO1991009375A1 Integrated vehicle positioning and navigation system, apparatus and method
06/27/1991CA2032913A1 Arrangement for timing moving objects
06/26/1991EP0433740A2 Device for the administration of a multitude of vehicles
06/26/1991EP0433596A2 Method and apparatus for suppressing undesired automatic transmitter change-over
06/26/1991EP0433351A1 Automatic anti-collision process and device for autonomous vehicles.
06/26/1991EP0433300A1 Speed detector
06/25/1991US5027302 Device for switching vehicle operating characteristics
06/25/1991US5027114 Ground guidance system for airplanes
06/22/1991WO1991009757A1 Golf cart control system
06/20/1991DE3941887A1 Traffic warning and guidance system - has measurement and indication equipment fixed to bridges spanning fast lanes
06/20/1991DE3941402A1 Collision warning system for vehicle - evaluates transmitted HF signal modulated with information representative of vehicle speed and acceleration
06/19/1991EP0432626A2 Circuit for monitoring an alternating current supplied light signal by direct voltages
06/19/1991EP0432625A1 Main-standby filament switch for AC driven two-filament lamps in traffic signalling devices
06/18/1991US5025324 Method of and apparatus for recording information on both a main recording medium and an endless recording medium for repeated event monitoring
06/18/1991US5025261 Mobile object navigation system
06/18/1991US5025253 System and method for remotely monitoring the connect/disconnect status of a multiple part vehicle
06/18/1991CA1285051C Roadside beacon system
06/18/1991CA1285050C Roadside beacon system
06/18/1991CA1285049C Single chip transponder device
06/13/1991WO1991008557A2 Highway vehicle identification system with high gain antenna
06/13/1991DE4031431A1 Traffic information radio car receiver - switches from stereo to mono reproduction mode when traffic announcement is detected
06/12/1991WO1991009275A2 Integrated vehicle positioning and navigation system, apparatus and method
06/12/1991EP0432043A1 Management system for parking space and the like
06/12/1991EP0431032A1 An indicator system
06/12/1991CN1052204A Method and apparatus for automatic recognition and accounting of car models
06/12/1991CA2071831A1 Integrated vehicle positioning and navigation system, apparatus and method
06/11/1991US5023798 Method of and apparatus for determining a position of a land vehicle
06/05/1991EP0430869A1 Baton for signalling
06/05/1991EP0429543A1 Directional information system
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