Patents
Patents for G08G 1 - Traffic control systems for road vehicles (61,183)
06/1988
06/30/1988DE3639024A1 Traffic signal system and method for operationally monitoring it
06/29/1988EP0272877A2 Display system for vehicle
06/29/1988EP0272251A1 Device to facilitate improved road safety
06/23/1988DE3642196A1 Optoelectronic collision protection device for vehicles
06/22/1988EP0272077A2 Apparatus for displaying travel path
06/22/1988EP0271842A2 Roadside beacon system
06/22/1988EP0271499A1 Audio-tactile pedestrian push button signalling system
06/16/1988DE3725903A1 Car radio for traffic radio reception
06/16/1988DE3641268A1 Radio hazard-warning system for motor vehicles
06/15/1988EP0271128A2 Infra-red transmit/receive unit for omnidirectional transmission in horizontal direction, and infra-red communication system provided with a number of said units
06/15/1988CN87107846A Roadway sign
06/14/1988US4751649 Motor vehicle with driving status discrimination device
06/14/1988CA1238076A1 Ceramic envelope device for high-pressure discharge lamp
06/09/1988DE3639119A1 Supplementary device, serving as an engine shut-off aid, for a traffic light controlling road traffic and pedestrians
06/08/1988EP0270396A1 Rolling-zone area-measuring device on a road
06/07/1988US4750129 Method of controlling a traffic control system and a traffic control system for use of the method
06/02/1988WO1988004029A1 System for guiding a vehicle inside a road network
06/01/1988EP0269327A2 Roadway sign
06/01/1988DE3640109A1 Leitsystem fuer ein fahrzeug innerhalb eines strassennetzes Control system for a vehicle within a road network
05/1988
05/25/1988EP0268060A1 Traffic signalling system
05/24/1988US4747064 Approaching vehicle informing system and method
05/24/1988US4745960 Collapsible partition assembly
05/19/1988WO1988003687A1 Identification system
05/19/1988DE3637600A1 Traffic radio receiving device
05/11/1988EP0267032A2 Vehicle sensing device
05/05/1988WO1988003303A1 Process for the provision of induction loops on railway track surfaces, heat or humidity detecting layers and control tracks for unmanned vehicles
05/05/1988DE3636137A1 Supply circuit arrangement for lighting means in road traffic signal transmitters
04/1988
04/28/1988DE3636258A1 Information system
04/21/1988DE3702122A1 Light signal device
04/20/1988EP0264056A2 Vehicle antenna with shiftable gain patterns
04/19/1988CA1235508A1 Adaptive inertial vehicle navigation system
04/14/1988DE3633368A1 Transmission system for switching off sources of sound in motor vehicles when an emergency vehicle approaches
04/13/1988EP0263804A2 Traffic lights
04/13/1988EP0263332A2 Receiver for radio traffic transmissions
04/13/1988EP0263303A2 Traffic control device for road vehicles
04/12/1988US4737977 Device and method for switching communications among taxis
04/12/1988US4737916 Electronic map display system
04/12/1988US4737758 Personal security and electronic parking system
04/07/1988DE3733096A1 Data demodulating circuit for an FM multiplex radio receiver
04/07/1988DE3632179A1 Circuit for monitoring signal lamps
04/07/1988DE3631603A1 Device for the temporary blocking of roads
04/07/1988DE3631315A1 Device for blocking thoroughfares and entrances
04/06/1988EP0262621A2 Vehicle detector for the determination of traffic magnitudes in road traffic
04/06/1988CN87205945U Monitoring unit for high way traffic flow
04/05/1988US4736303 On-vehicle navigation system
03/1988
03/31/1988DE3632316A1 Vehicle detector
03/30/1988EP0261450A1 Guiding system for individual traffic
03/30/1988EP0261404A1 Navigation device for a vehicle
03/29/1988US4734881 For the validation of repetitive signals
03/29/1988US4734862 Conflict monitor
03/29/1988US4734725 Apparatus for photographing objects and/or persons simultaneously with the occurrence of a predetermined event
03/23/1988CN87207036U Vehicle speed indicator lamp
03/23/1988CN87206602U Fully-automatic display and control system for traffic signal of highway
03/22/1988US4733356 Control device for a vehicle route guidance system
03/17/1988DE3630623A1 Additional traffic light display
03/17/1988DE3630228A1 Electric display device
03/16/1988EP0259523A1 Apparatus for dynamic statistical weighing of vehicles and/or for counting the axles of trucks or lorries
03/16/1988EP0259445A1 Object detection method and apparatus employing electro-optics.
03/16/1988EP0259334A1 Road traffic sign.
03/15/1988US4731867 Vehicle communication system using existing roadway loops
03/09/1988EP0258876A2 Passenger information system for a public transport means
03/09/1988CN86105883A Monitor for overspeed driving car
03/01/1988US4729076 Signal light unit having heat dissipating function
03/01/1988US4728922 Vehicle monitoring system
02/1988
02/24/1988EP0256998A2 System to control and temporarily adapt semaphoric regulation
02/24/1988EP0256483A1 Traffic guidance and information system
02/24/1988EP0256287A2 Demodulator for the demodulation of input signals
02/24/1988CN86210950U Energy-saving combined traffic directing light
02/23/1988US4727372 Detection system
02/23/1988US4727371 Traffic control system and devices for alleviating traffic flow problems at roadway junction
02/23/1988US4727331 Warning tone signal generator
02/23/1988US4726134 Roadway sign
02/17/1988CN87105498A System to control and temporarily adapt semaphoric regulation
02/11/1988DE3700085A1 Method for stopping vehicles travelling in the wrong direction of travel on motorways, highways and other roads
02/09/1988US4724427 Transponder device
02/09/1988US4723737 Process and device for transmitting data between vehicles moving over a track
02/09/1988CA1232655A1 Location identification arrangement for vehicle guidance systems
02/04/1988DE3721279A1 Digital storage of information, particularly traffic radio announcements in broadcast receivers
01/1988
01/28/1988WO1988000785A1 Transponder device
01/28/1988DE3625153A1 Combination of audio devices for a motor vehicle
01/27/1988EP0254061A2 Digital demodulator
01/27/1988EP0253835A1 Traffic control system
01/21/1988DE3722578A1 Electrical lamp unit for traffic lights or other similar light signal devices
01/13/1988EP0252773A1 Method and device for monitoring the movement of objects, particularly of motor vehicles
01/07/1988EP0251097A1 Monitoring device for signal lights of a road traffic signal arrangement
01/07/1988DE3621842A1 Method for traffic-dependent determination of the green time in road traffic signal installations
01/07/1988DE3621456A1 Arrangement for representing traffic situations
01/05/1988US4717915 Method and apparatus for the graphic registration of moving vehicles
12/1987
12/29/1987US4716413 Drunk driver detection system
12/23/1987EP0249951A1 Roadside beacon system
12/22/1987US4714925 Loop data link
12/16/1987EP0249487A2 Apparatus and method for locating a vehicle in a working area and for the on-board measuring of parameters indicative of vehicle performance
12/16/1987EP0248794A1 Traffic signal light control for emergency vehicles
12/16/1987CN86207811U Traffic commanding system with micro computer control and digital display
12/15/1987US4713661 Transportation vehicle location monitor generating unique audible messages
12/10/1987DE3618863A1 Optical toy/model signal device
11/1987
11/25/1987EP0246530A2 Decoding system of data signals
11/25/1987EP0246452A2 Computerized trip planner and automotive navigator
11/19/1987WO1987007057A1 Apparatus for reading a license plate
11/19/1987EP0245555A1 Method of and system and apparatus for locating and/or tracking stolen or missing vehicles and the like