Patents
Patents for G08G 1 - Traffic control systems for road vehicles (61,183)
07/1993
07/15/1993DE4200448A1 Motor vehicle speed monitoring appts. with on-board warning system - receives speed limit data and compares with actual speed to activate warning if limit is exceeded.
07/14/1993EP0550852A1 Apparatus and method for detecting and warning of possible collision with rear of vehicle in front
07/14/1993CN2138317Y Computer controlling vehicle communication display
07/14/1993CN2138062Y Alarming device against colliding
07/13/1993US5227803 Transponder location and tracking system and method
07/08/1993WO1993013510A1 Passenger information system
07/08/1993WO1993013503A1 Commuter notification system for mass transit applications
07/08/1993DE4200061A1 Verfahren zur bestimmung der fahrzeugquergeschwindigkeit und/oder des schwimmwinkels Method for determining the vehicle lateral velocity and / or the float angle
07/07/1993EP0550101A1 Image registration process
07/06/1993US5225827 Warning device in a motor vehicle for detection of unintentional change of course
06/1993
06/30/1993EP0548829A1 Process for determining the occupation state of a path that can be crossed by any kind of object
06/29/1993US5223907 Guard rail detecting device
06/24/1993WO1993013385A2 Vehicle navigation apparatus
06/24/1993DE4141597A1 IC card for travel plan of passenger bus - loading data from central station onto chip card which is used to enter data into specific vehicle unit
06/24/1993CA2101158A1 Vehicle navigation apparatus
06/23/1993EP0547548A1 Travel guiding apparatus for vehicle
06/23/1993EP0547197A1 Car park management method and system.
06/23/1993CN2136931Y Indicator lamp for communication and engineering
06/22/1993US5221925 Position identification system
06/17/1993DE4242387A1 Vehicle navigation system - has map display on which map is shown with current vehicle direction pointing upwards
06/16/1993EP0546928A1 On a motor vehicle mounted device for detecting and identifying obstacles
06/16/1993EP0546758A2 Mobile unit tracking system
06/15/1993US5220677 Method and apparatus for establishing communication paths with requesting customer stations
06/15/1993US5220509 Vehicle navigation apparatus
06/15/1993US5220497 Method and apparatus for controlling high speed vehicles
06/15/1993US5220321 Method for the provision of malfunction protection for lights in decentralized traffic-light installations
06/15/1993CA2013663C Display element with notched disk
06/10/1993WO1993011443A1 Method and apparatus for controlling vehicle movements
06/09/1993EP0530307A4 Method of determining optimal detection beam locations using reflective feature mapping
06/09/1993DE4210170C1 Traffic hold up warning system for motorway - uses inductive loop for monitoring road speed of successive vehicles to activate warning devices.
06/09/1993CN1073029A Stop-announcement device for suburban bus
06/08/1993US5218629 Communication system for message display onboard mass transit vehicles
06/08/1993US5218543 Digital movement recording apparatus with reduced memory consumption
06/08/1993US5218367 Vehicle tracking system
06/03/1993DE4139581A1 Vehicle navigation system - transmits information w.r.t. starting location and destination to central command station which determines route plans
06/02/1993EP0543904A1 Surveillance apparatus particularly for use in viewing vehicle number-plates
06/02/1993CN1072808A Communicating and controlling method for motor vehicle in running
06/01/1993US5215159 System for controlling a driving device of a vehicle
05/1993
05/27/1993DE4138200A1 Individual road traffic system guide track - has wheeled vehicles following central guide with additional guides provided for turning at junctions
05/27/1993DE4138050A1 Traffic information indication identification system for road vehicle - has on board active transponder and cooperating passive transponder adjacent traffic information indication
05/26/1993EP0543543A1 Location detecting apparatus with overspeed predicting means
05/25/1993US5214793 Electronic billboard and vehicle traffic control communication system
05/19/1993EP0542509A2 System and method for reviewing path of travel
05/19/1993EP0542421A2 Motor vehicle driving analytically diagnosing method and device
05/19/1993EP0542331A1 Navigation device and vehicle comprising the device
05/19/1993DE4137898A1 Traffic warning of no entry in one direction - has hinged panel supported on channel inset into road with warning symbols along front raised edge.
05/18/1993US5212643 Vehicle-mounted navigation apparatus
05/18/1993CA1318009C Roadside beacon system with polarized beams
05/13/1993WO1993009524A1 Liquid crystal lens assembly
05/13/1993WO1993009523A1 Video-based object acquisition, identification and velocimetry
05/13/1993WO1993009511A1 A vehicle route planning system
05/13/1993WO1993009510A1 A vehicle route guidance system
05/13/1993WO1993009509A1 An improved accuracy sensory system for vehicle navigation
05/13/1993DE4237803A1 Vehicle navigation system using cartographic data stored in memory - includes memories contg. data related to destination classification, characteristics, names and geographical locations etc.
05/13/1993DE4136802A1 Car radio with receiver for traffic signals - has additional speech memory with interrogator of spoken messages
05/12/1993CN1072034A Automatic station name announcing system for trains
05/11/1993US5210772 Approximate figures measuring system
05/05/1993EP0540226A2 System and method for transmitting data in an optical traffic preemption system
05/05/1993CN2132230Y Electronic traffic signpost
05/04/1993US5208586 Ultrasonic vehicle positioning apparatus and method
05/04/1993US5208584 Traffic light and back-up traffic controller
04/1993
04/29/1993DE4140662C1 Wildlife presence warning appts. - warns vehicle driver of presence of wildlife near road, or about to cross road, using ultrasound detectors near road-side
04/28/1993EP0539146A2 Navigation system
04/28/1993EP0539145A1 Navigation device
04/28/1993EP0538514A1 Information and guidance system for public transport
04/28/1993EP0538281A1 A method to control traffic for prt/pgrt and an arrangement for carrying out the method
04/27/1993US5206811 Navigation system for automotive vehicle
04/27/1993US5206643 System for managing a plurality of motor vehicles
04/27/1993US5206642 Device for detecting data relating to the passage of vehicles on a road
04/27/1993US5206641 Portable traffic congestion radio
04/21/1993EP0513146A4 A parking-aid device
04/21/1993CN1020357C Method and apparatus for automatic recognition and accounting of car models
04/20/1993US5204817 Car mounted navigation system
04/20/1993US5204536 Electro-optical monitoring system utilizing optical signal transmitters in predetermined geometrical patterns
04/20/1993CA1316583C Traffic monitoring device
04/17/1993CA2057469A1 Electronic anti-collision device installed aboard a vehicle
04/15/1993WO1993007603A1 Approaching emergency vehicle warning system
04/15/1993DE4133449A1 Road junction traffic lights circuit - uses sensor, e.g. radar type, working on IR or microwave basis
04/14/1993CN2129954Y Induction traffic control information transceiver
04/13/1993US5203017 Method and apparatus for establishing wireless communication with multiple customer stations
04/13/1993US5202683 For receiving pulses of light from an emergency vehicle
04/08/1993DE4123857A1 Vehicle identification appts. for transmission by police vehicle warning - transmits in coded form to be received by private vehicle on board unit with decoder
04/01/1993DE4134601A1 Providing warning, road and travel information to drivers - transmitting signal over inductive loop set into road surface and detected by loop within motor vehicle
04/01/1993DE4132389A1 Signal light control and function monitoring circuit - uses test voltage applied across transducer supplying signal lamp function monitor.
03/1993
03/31/1993EP0534755A2 Navigation device
03/31/1993EP0534533A1 Device and method for displaying cartographic information in vehicular navigation
03/31/1993EP0534532A1 Axle detector built in the surface of a multi-lane road
03/30/1993US5198811 Vehicle communication system using existing roadway loops wherein the physical integrity of the loop is kept intact
03/23/1993US5196846 Moving vehicle identification system
03/18/1993WO1993005492A1 Method for automatic routing, navigation, protection and guidance for vehicle drivers
03/17/1993EP0532158A1 Navigation apparatus
03/17/1993CN2128401Y Multifunctional infrared reflection type vehicle tester
03/10/1993EP0531045A1 Optical signal emitter assembly
03/10/1993EP0530307A1 Method of determining optimal detection beam locations using reflective feature mapping
03/09/1993US5193214 Vehicular radio receiver with standard traffic problem database
03/09/1993US5192954 Roadway antennae
03/09/1993CA2052421A1 Customer activity monitor
03/04/1993DE4203930A1 Radio controlled mobile warning system for motor vehicle - has short range channels for receiving warning of hazard conditions with transmitter for relaying signals
03/04/1993DE4128312A1 Detecting motor vehicle movements and traffic density in traffic monitoring system - using video camera coupled to digital image memory for comparison of stored with actual images to identify motion with further comparison to identify vehicle types
03/03/1993EP0396558B1 Process for inputting starting and destination points into navigation systems