System for providing information to the vehicles' driver, including a coding and decoding system

Claim 2

A prefabricated road-marking strip installed on the edges of roads or highways for transmitting information about the road to moving vehicles and operative in conjunction with active electronic components located on a movable vehicle and provided with energy emitting and energy receiving means, comprising passive electrical components located on the lower side of the strip, said passive components being so arranged that they are able to receive radiant energy from said active components in the direction which is perpendicular to the line of motion of the vehicle and send said energy back to the energy receiving means so as to obtain precise information from said passive components in the form of signals; and light re flecting horizontal markings providing a vehicle driver with clear visual information about the road.

Claim 3

The strip as defined in claim 1, wherein said passive components are attached to the road-marking strip.

Claim 4

The strip as defined in claim 1, wherein said passive components consist of dipoles of such dimensions and ar- rangemant as to reflect radiant energy in the direction of the energy receiving means of said active components, and which are formed of thin metallic plates.

Claim 5

A road surface marking system comprising a prefabricated road-marking strip installed on the edges of roads or highways for transmitting information about the road to moving vehicles and including a plurality of light reflecting horizontal markings providing a vehicle driver with clear visual information about the road and a plurality of passive electrical components located on the lower side of the strip; and active electronic components located on a movable vehicle and provided with energy emitting and energy receiving means, passive electrical components being operative for receiving electric energy from said electronic means, reemitting this energy and returning the same to said active electronic means for provision of positive electromagnetic information in the form of signals about the road to the vehicle driver.

Claim 6

A road surface marking system comprising a prefabricated road-marking strip installed on the edges of roads or highways for transmitting information about the road to moving vehicles and including a plurality of light reflecting horizontal markings providing a vehicle driver with clear visual information about the road and a plurality of passive electrical components located on the lower side of the strip; and active electronic components located on a movable vehicle and provided with energy emitting and energy receiving means, passive electrical components being operative for receiving electric energy from said electronic means, reemitting this energy and returning the same to said active electronic means for provision of positive electromagnetic information in the form of signals about the road to the vehicle driver.

Claim 7

The system as defined in claim 4, wherein said active elctronic means located on a movable vehicle include a secondary radar for emitting energy to the road and an antenna for receiving said reemitted energy from said passive components.

Claim 11

The method as defined in claim 7, further compri-' sing the step of irradiating an infrared energy from an infrared source arranged on the vehicle to a part of said light reflecting markings selectively arranged on the road and receiving the modulated returning signals therefrom to obtain a complemental information about the road.

Claim 12

In a system for providing a driver information, comprising a prefabricated road-marking strip installed on the edges of roads or highways for transmitting information about the road.to moving vehicles; active electronic components located on a movable vehicle and provided with energy emitting and energy receiving means and operated in conjunction with said strip; passive electrical components located on the lower side of the strip, said passive components being so arranged that they are able to receive radiant energy from said active components in the direction which is perpendicular to the direction of motion of the vehicle and send said energy back to the energy receiving means so as to obtain precise information from said passive components in the form of signals; and light reflecting horizontal markings providing a vehicle driver with clear visual information about the road, the improvement comprising an automatic system providing informations to the driver and including a coding and decoding arrangement including synchronizing marking compo- nehts, key marking components and code marking components, said key marking components and said code marking components being positioned on said marking strip one after another.

Claim 13

In a system for providing a driver information, comprising a prefabricated road-marking strip installed on the edges of roads or highways for transmitting information about the road.to moving vehicles; active electronic components located on a movable vehicle and provided with energy emitting and energy receiving means and operated in conjunction with said strip; passive electrical components located on the lower side of the strip, said passive components being so arranged that they are able to receive radiant energy from said active components in the direction which is perpendicular to the direction of motion of the vehicle and send said energy back to the energy receiving means so as to obtain precise information from said passive components in the form of signals; and light reflecting horizontal markings providing a vehicle driver with clear visual information about the road, the improvement comprising an automatic system providing informations to the driver and including a coding and decoding arrangement including synchronizing marking compo- nehts, key marking components and code marking components, said key marking components and said code marking components being positioned on said marking strip one after another.