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)
12/1990
12/05/1990CN1047580A Remote control system and method for traffic safety
12/04/1990CA1277400C Anti-theft and locating system
11/1990
11/29/1990WO1990014640A1 Image processed optical toll gate voucher
11/29/1990WO1990014634A1 Digital data processing
11/27/1990US4974170 Electronic directory for identifying a selected group of subscribers
11/27/1990CA1277040C Microprocessor controlled signal discrimination circuitry
11/27/1990CA1277015C Directional antennas for a roadside beacon system
11/27/1990CA1277014C Roadside beacon system
11/22/1990DE4014365A1 Automatic road vehicle steering system - provides integrated control of hydraulic braking mechanism on all wheels in response to preset distance from defined track
11/21/1990CN2066173U Combined colour lamp signal mechanism
11/20/1990US4972185 Radiant energy signal transmitter
11/20/1990CA1276459C Roadway sign
11/15/1990WO1990013882A1 Broadcast receiver, in particular for vehicles
11/15/1990DE3915099A1 Mobile traffic warning system - transmits signals with local effectiveness in non-audible and non-visible wavelength range
11/15/1990DE3914104A1 Rundfunkempfaenger, insbesondere fahrzeugempfaenger Rundfunkempfaenger, especially fahrzeugempfaenger
11/14/1990EP0396558A1 Process for inputting starting and destination points into navigation systems.
11/14/1990CN2065781U Automatic computer testing controller on vehicles
11/14/1990CN1046995A Digital display electronic brain control system for traffic signal
11/13/1990US4970652 System and method for displaying present position for moving object
11/13/1990US4970509 Alarm system for warning a land motor vehicle driver of the presence of a roadway edge
11/13/1990US4970389 Vehicle identification system
11/07/1990EP0396432A2 Monitoring apparatus
11/07/1990CN1010350B Roadway sign
11/06/1990US4968979 Vehicle detecting system
11/05/1990CA2016088A1 Monitoring apparatus
11/01/1990WO1990013190A1 Technique for using a subcarrier frequency of a radio station to transmit, receive and display a message together with audio reproduction of the radio program
11/01/1990WO1990013183A1 Current carrier tractor-trailer data link
10/1990
10/31/1990EP0395371A2 Automatic alteration of the operation of a radiant energy transmitter
10/31/1990DE3914247A1 Road traffic safety system - uses transmitted information and on board receiver coupled to microprocessor
10/31/1990CN1046630A Automatic monitoring and controlling instrument for automobile's overspeed and inertia
10/28/1990CA2013739A1 Automatic alteration of the operation of a radiant energy transmitter
10/28/1990CA2013579A1 Radiant energy signal transmitter
10/25/1990DE3912945A1 Car radio receiving traffic broadcast - uses recorded text for traffic information supplied when radio is switched off
10/24/1990EP0393444A2 Method and device for the position-dependent operation of at least an element in a vehicle
10/24/1990EP0393089A1 Transponder.
10/18/1990WO1990012382A1 Road traffic signalling system
10/18/1990WO1990012381A1 Process for the provision of cut-out protection for lights in decentralized traffic-light installations
10/18/1990DE3930877C1 Traffic signal system safety circuit - has two processors receiving signal state combinations for checking their reliability
10/17/1990EP0392953A1 Microprogrammable electronic anticollision alarm control and aid for driving road motor vehicles
10/17/1990EP0392736A2 Treadle assembly
10/17/1990EP0392374A1 Method for the transmission of guide information
10/16/1990US4963723 Automatic toll collector for toll roads
10/16/1990US4963705 Treadle assembly
10/11/1990WO1990013103A1 Collision avoidance system for vehicles
10/11/1990CA2011733A1 Treadle assembly
10/10/1990EP0390822A1 Identification apparatus and methods.
10/09/1990US4962457 Intelligent vehicle-highway system
10/09/1990US4962450 Light signalling device
10/03/1990EP0390757A2 Lens for traffic lights and method of making same
10/03/1990EP0389488A1 Vehicle location systems.
09/1990
09/27/1990DE3910194A1 Control system for guiding road users
09/27/1990DE3908785A1 Method and devices for measuring the speed of motor vehicles
09/26/1990EP0389325A1 Method and apparatus for assisting land vehicle traffic
09/26/1990EP0388423A1 Luminous panel
09/26/1990EP0388409A1 A device for the screening in the fog with 100 to 7000 micron electromagnetic waves and microcell screen
09/20/1990DE3908069A1 Device and circuit arrangement for measuring, recording and displaying the speed of a moving object, for example a vehicle
09/12/1990EP0387093A2 Traffic detection cable installation
09/12/1990EP0387092A2 Traffic monitoring equipment
09/12/1990EP0386835A1 Method of processing a radio data signal, and receiver for performing said method
09/12/1990CN2062094U Separated magnetic-electric inducting transducer
09/11/1990US4956866 Emergency signal warning system
09/11/1990US4956777 Automatic vehicle control system
09/07/1990WO1990010294A1 Snap-in housing for backup alarm
09/06/1990DE3904826C1 Arrangement for displaying the state of occupation of a parking area
09/05/1990EP0385147A2 Apparatus for controlling the reception capacity of radio alarm receivers
09/04/1990US4954959 Navigation system
09/04/1990US4954958 System for providing routing directions for travel between locations
09/04/1990US4954822 Traffic signal using light-emitting diodes
08/1990
08/30/1990DE4005480A1 Traffic light signalling system - has multiple lamps with word instructions displayed and with additional flash lamp units
08/30/1990DE3905493A1 Locating and navigating system for land vehicles
08/30/1990DE3904181A1 Broadcast receiving device for motor vehicles
08/29/1990EP0384874A2 Device for the detection of passing vehicles on a road with a piezoelectric film
08/29/1990EP0384794A1 Traffic and parking information collecting and broadcasting system for transport vehicles, especially for motorists
08/29/1990EP0384368A2 Method for the surveillance of several traffic radio transmitters
08/28/1990US4952931 Signal adaptive processor
08/21/1990US4951212 Automobile driving guide apparatus
08/21/1990US4951211 Electronic guiding and information system for traffic
08/16/1990EP0381937A2 Warning messages reproduction system
08/14/1990US4949186 Vehicle mounted surveillance system
08/14/1990US4949067 Warning system for racetrack
08/09/1990WO1990009014A1 Method and apparatus for surveying traffic conditions
08/09/1990DE4009683A1 Digital storage arrangement for traffic messages - has bandwidth low-pass filter limiting without loss of information
08/09/1990DE4001980A1 Marking stud for road surfaces - has head with surface directed upwards provided with solar cells and light-responsive sensor switch
08/07/1990US4947353 Automatic vehicle detecting system
08/03/1990CA2008789A1 System for collecting and disseminating information on traffic and on parking of transport vehicles (in particular for car drivers)
08/02/1990DE4002337A1 Traffic warning lights with solar power devices - signals when vehicles go down one-way streets in wrong direction
08/02/1990DE3902582A1 Method for local traffic data acquisition and evaluation
08/01/1990EP0379532A1 A method of evaluating digitally encoded traffic information received in a data telegram and radio receivers
07/1990
07/31/1990US4945356 Strip material for and a surface mounted inductive loop
07/31/1990CA1272052A1 Multi-bulb light source
07/25/1990EP0379198A2 Mobile object navigation system
07/25/1990CN2059752U Contactless signal box for level crossing
07/24/1990US4943805 Conduit-enclosed induction loop for a vehicle detector
07/18/1990EP0378271A1 Method for the perspective display of a part of a topographic map, and device suitable for performing such a method
07/18/1990EP0377700A1 Method and device for the surveillance of warehouses and goods depots
07/17/1990US4941770 Method for applying a conductor layer on a road surface and arrangement of a heating layer on a road surface
07/12/1990WO1990007763A1 Speed monitoring device for road vehicles
07/11/1990EP0377480A2 Procedure for setting up and keeping up-to-date data files for road traffic
07/04/1990EP0376800A1 Automatic site monitoring process and apparatus
07/04/1990EP0375817A1 Navigation apparatus
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