Patents
Patents for G08G 1 - Traffic control systems for road vehicles (61,183)
06/1983
06/28/1983US4390880 Radio communication system and transmitter and receiver equipment therefor
06/23/1983WO1983002165A1 A position indicating system
06/14/1983US4388608 Vehicle location monitoring system
05/1983
05/24/1983CA1147025A1 Traffic radia system
05/17/1983US4384271 Traffic light
05/11/1983WO1983001698A1 Calling installation for public transport on request by modification of the route
05/10/1983US4383290 Signal lamp
05/10/1983US4383240 Recorder of the status of a traffic control system
05/10/1983US4383239 Detector for detecting the passage of heavy objects on a roadway
04/1983
04/19/1983US4380821 Traffic broadcasting system
04/19/1983US4380762 Polyfunction programmable data receiver
04/12/1983US4379497 Vehicle collision avoidance system
03/1983
03/16/1983EP0074330A1 System for the identification and the determination of the passing moment of a plurality of moving objects at a predetermined point of their travel path
02/1983
02/16/1983EP0071873A2 Circuit for object detection with a conductive loop
02/01/1983US4371935 Navigation instrument
02/01/1983US4371863 Traffic-actuated control systems providing an advance signal to indicate when the direction of traffic will change
01/1983
01/25/1983US4370718 Responsive traffic light control system and method based on conservation of aggregate momentum
01/18/1983US4369429 Traffic signal housing adapter
01/18/1983US4369427 Method and circuit arrangement for determining the entry and/or exit of a vehicle, in particular a traffic vehicle, into and out of a predetermined monitoring zone
01/18/1983US4369426 Emergency distress signal system for motor vehicles
01/18/1983US4368979 Automobile identification system
01/12/1983EP0069213A2 Combined car radio cassette unit
01/11/1983US4368428 Method and arrangement for determining the velocity of a vehicle
01/11/1983US4367975 Traffic barriers
01/04/1983US4367453 Automotive driving direction and position indicator apparatus
01/04/1983CA1138951A1 Traffic control system
12/1982
12/29/1982EP0067905A1 Method and device for the evaluation of signals in a velocity measuring unit
12/29/1982EP0067843A1 Route-indicating system
12/14/1982US4364043 Efficient object identification system
12/14/1982CA1137586A1 Device for automatically monitoring the charge state of power supplies independently of the mains system
12/08/1982EP0066037A1 UHF receiver for a traffic information radio broadcasting system
12/01/1982EP0065616A1 UHF transmitter for a traffic information radio broadcasting system
12/01/1982EP0065615A1 UHF receiver for a traffic information radio broadcasting system
11/1982
11/16/1982US4359712 Communications system for automotive vehicles
11/09/1982US4358749 Object detection
11/02/1982US4357593 Guidance system for individual traffic
10/1982
10/26/1982US4356485 Device for the signal-technical secure control and monitoring of electrical loads
10/26/1982US4356484 Method for transmitting data in a time multiplex transmission
10/19/1982US4355295 Method and device for connecting terminals of a traffic control unit
10/19/1982CA1134012A1 Apparatus for providing a time-controlled output
10/19/1982CA1133990A1 Optical signal transmitter
10/06/1982EP0061963A1 Traffic control device by light signals
10/05/1982US4353054 Stop sign watcher, a device for monitoring vehicles at full stop sign intersections
09/1982
09/28/1982USRE31044 Traffic coordinator for arterial traffic system
09/28/1982US4352089 Voice warning system for an automotive vehicle
09/28/1982US4352086 Method and a circuit arrangement for modifying control information in a traffic signal system, particularly a street traffic signal system
09/21/1982US4350970 Method for traffic determination in a routing and information system for individual motor vehicle traffic
09/21/1982US4350969 Vehicle identification and position signalling system in a public transportation system
09/21/1982CA1132005A1 Street crossing signal device for blind persons
09/08/1982EP0059225A1 Sleeping driver warning device for vehicle
09/07/1982US4348652 Driver alert system
08/1982
08/25/1982EP0058596A1 Selective transmission system for traffic information
08/24/1982US4346293 Optical electronic distance sensor with a parallel beam of light and adjustable detector-emitter separation
08/24/1982CA1130406A1 Device for detecting unwanted signal combinations of two signal lamps in traffic lights
08/24/1982CA1130405A1 Device for controlling a traffic-light installation
07/1982
07/27/1982US4342023 Noise level controlled voice warning system for an automotive vehicle
07/20/1982CA1128168A1 Method of installing magnetic sensor loops in a multiple lane highway
07/08/1982WO1982002271A1 Route-indicating system
07/06/1982US4338587 Toll collection system
06/1982
06/22/1982US4336596 Method and apparatus for electronically rotating a heading signal
06/16/1982EP0053734A1 Device for the registration and playback of traffic news
06/08/1982US4334320 Traffic information radio signal receiver
06/02/1982EP0052933A1 Object detector
06/01/1982US4332503 Apparatus for signaling direction of travel on a road bed
05/1982
05/26/1982EP0052263A1 Device to keep track-bound vehicles at a distance from one another
05/11/1982US4329677 Signal-light systems, especially for a series of emergency-phone stations distributed along the length of a highway, or the like
05/11/1982US4329625 Light-responsive light-emitting diode display
05/05/1982EP0050623A1 Solar powered street lighting system
04/1982
04/27/1982CA1122678A1 Wire-guidance apparatus
04/27/1982CA1122671A1 Device for identifying objects and persons
04/21/1982EP0049949A2 Apparatus for detecting a ferromagnetic material
04/20/1982CA1122300A1 Pressure sensitive device
04/13/1982US4325146 Non-synchronous object identification system
04/13/1982US4325057 School bus approach notification method and apparatus
04/06/1982US4323970 Method and circuit arrangement for generating setting signals for signal generators of a traffic signal system, particularly a street traffic signal system
03/1982
03/30/1982US4322801 Method for controlling traffic flow
03/23/1982US4321589 Detection system for emergency vehicles with signal preemption means
03/18/1982WO1982000802A1 Sleeping driver warning device for vehicle
03/16/1982US4320380 Electronically controlled safety mechanism for highway exit ramp
02/1982
02/23/1982US4317163 Luminaire for an electric lamp
02/23/1982CA1118862A1 Vehicle position indicator
02/23/1982CA1118861A1 Vehicle position indicator
02/03/1982EP0045044A1 Signalling device for signalling street vehicles going in the wrong direction
01/1982
01/19/1982US4311876 Route guidance system for roadway vehicles
01/12/1982US4310862 Magnetic control strip recording device for roadway control system
01/12/1982CA1116241A1 Radio broadcasting system with code signaling
01/05/1982CA1115800A1 Driver alert system
12/1981
12/09/1981EP0041471A2 Apparatus for stop-related output of information and data to displaying or processing devices in vehicles
12/02/1981EP0040839A2 Identification system for motor vehicles, method and apparatus for realizing such a system, and method and apparatus for reproducing coded information contained in such a system
12/01/1981US4303905 Method and apparatus for calculating the green light time in traffic-dependently controllable street traffic signal systems
11/1981
11/25/1981EP0040544A2 Coded information arrangement
11/24/1981US4302746 Self-powered vehicle detection system
11/24/1981US4302665 Circuit for measuring the duration of a pulse train, its use and circuit for its use
11/17/1981US4301506 Auto routing computer for eliminating the need for maps or travel instructions
11/12/1981WO1981003215A1 Solar powered street lighting system
11/10/1981CA1112340A1 Object identification system
11/10/1981CA1112323A1 Traffic coordinator for arterial traffic system
11/03/1981US4298869 Light-emitting diode display
10/1981
10/28/1981EP0038539A1 Arrangement for road signalling dependent on the speed and dimensions of the vehicle
10/27/1981US4297672 Early warning system for approaching transportation vehicles