G08G 1 - Traffic control systems for road vehicles

Patents for G08G 1 - Traffic control systems for road vehicles (61,183)
10/1977
10/04/1977	US4052595 Automatic vehicle monitoring system
09/1977
09/27/1977	US4050834 Internally powered traffic control device
09/13/1977	US4048613 Alarm system for emergency braking
09/13/1977	US4047799 Multi-color hand signal
08/1977
08/09/1977	US4041393 Vehicle voice data link
07/1977
07/26/1977	US4038633 Detection system for automobiles and other motor-driven objects
06/1977
06/28/1977	US4032883 Portable traffic signal
06/21/1977	US4031507 Traffic controller, electromechanical sequencer for a traffic controller
06/07/1977	US4028662 Passing vehicle signalling apparatus
06/07/1977	US4028531 System for displaying information aboard a moving object
05/1977
05/31/1977	US4027249 Vehicle radio control unit
05/24/1977	US4025922 Traffic control system
05/24/1977	US4025791 Object identification system
05/17/1977	US4024475 Decoder for frequency-modulated tones of two different lengths
05/10/1977	US4023109 Sequence control system with timed operations
05/10/1977	US4023017 Electronic traffic control system
05/03/1977	US4021793 Detector device for converting A.C. inputs to an D.C. output and a system for using the same
04/1977
04/19/1977	US4019170 Adapter unit for pedestrian traffic control signal
04/12/1977	US4017825 Intersection emergency warning system
04/05/1977	US4016532 Emergency traffic control system with security transmission coding
04/05/1977	US4016528 Moving target detector
04/05/1977	US4015349 Changeable message highway sign machine
03/1977
03/22/1977	US4013994 Vehicle warning system
03/15/1977	US4012635 Light barrier system
03/08/1977	US4010925 Adjustable traffic signal mounting assembly
03/01/1977	US4010404 Traffic error correcting circuit for traffic dispatching system
02/1977
02/22/1977	US4009375 Monitoring system for vehicles
02/15/1977	US4008404 Interval timer
02/01/1977	US4006447 Audibility-control system for radio receiver
01/1977
01/25/1977	US4005384 Vehicle detector
01/11/1977	US4002983 Vehicle-emergency call system
01/04/1977	US4001822 Electronic license plate for motor vehicles
12/1976
12/21/1976	US3999160 Modular traffic signal apparatus
12/14/1976	US3997868 Emergency vehicle warning system
12/07/1976	US3996555 Identification of vehicles
12/07/1976	US3996554 Data transmission system
12/07/1976	US3996518 Inductive carrier communication systems
11/1976
11/16/1976	US3992671 Circuit arrangement for automatic monitoring of protection time periods in street traffic signal systems
11/16/1976	US3992656 Siren detector
11/09/1976	US3991400 Traffic light housing
11/02/1976	US3989932 Inductive loop vehicle detector
10/1976
10/12/1976	US3986167 Communication apparatus for communicating between a first and a second object
10/12/1976	US3986119 Emergency communication system
10/12/1976	US3985195 Vehicle speed-limiting system
10/05/1976	US3984836 Relative distance indicating speedometer for a vehicle
10/05/1976	US3984810 Direction warning indicator energizing circuit
10/05/1976	US3984807 Vehicle location system
10/05/1976	US3984806 Location systems
10/05/1976	US3984764 Inductive loop structure for detecting the presence of vehicles over a roadway
09/1976
09/28/1976	US3983532 Traffic control signal apparatus
09/28/1976	US3983531 Vehicle-responsive signal means
09/14/1976	US3980867 Traffic signal loop monitoring system
08/1976
08/31/1976	US3978481 Anti-collision vehicular radar system
08/31/1976	US3978447 Safety transmitting device
08/31/1976	US3978321 Portable hand-carried automobile counting device
08/31/1976	US3977641 Adjustable fitting for rigid attachment of traffic signals to mounting members
08/24/1976	US3977008 Method and an apparatus for detecting and recording the number of phenomena
08/24/1976	US3976970 Process and device for analizing and validating signals usable in warning systems for road-signs
07/1976
07/27/1976	US3972021 System for monitoring spaces by electro-optical means
07/20/1976	US3970988 Conveyor-type traffic signal device
07/06/1976	US3968395 Two filament electric bulb traffic light
06/1976
06/29/1976	US3967245 Traffic signal control device with core memory
06/29/1976	US3967240 Directional signal
06/22/1976	US3964702 Anti-collision safety device for a passenger transport system on tracks
06/15/1976	US3964063 Traffic-surveillance system
06/08/1976	USRE28852 Traffic signal with directional indicator
06/08/1976	US3962676 Control system for ohmic loads, preferably signal lamps in a road traffic system
05/1976
05/25/1976	US3959768 Dual direction indicator
04/1976
04/13/1976	US3950725 Automobile detecting and announcing device
04/13/1976	US3950098 Safe distance visual warning device
04/06/1976	US3949401 Frequency identification circuit for broadcast traffic information reception systems
04/06/1976	US3949355 Sensor for vehicular traffic data accumulating systems
04/06/1976	US3949300 Emergency radio frequency warning device
03/1976
03/30/1976	US3947807 Vehicle location systems
03/16/1976	US3944912 Magnetic detection means for sensing mobile ferromagnetic masses including pulse shaper circuit for generating a single pulse output
03/16/1976	US3944906 Detector device for converting A.C. inputs to an D.C. output and a system for using the same
03/09/1976	US3943339 Inductive loop detector system
03/02/1976	US3942108 Digital test instrument
03/02/1976	US3941201 Traffic merging method and means
02/1976
02/24/1976	US3940630 Vehicle locator
02/10/1976	US3938080 System for the programmed flashing of warning lights
01/1976
01/27/1976	US3935561 Signal lamp configuration for directing high speed traffic and sequencing means therefor
01/06/1976	US3930735 Traffic survey system

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