Control system for vehicle traffic signals

Claim 1

A SYSTEM FOR CONTROLLING A PLURALITY OF TRAFFIC SIGNALS RESPECTIVELY GOVERNING TRAFFIC AT SPACED INTERSECTIONS FROM A CONTROL OFFICE COMPRISING IN COMBINATION, CONTROLLER APPARATUS FOR THE TRAFFIC SIGNAL AT EACH OF SAID INTERSECTIONS, AT LEAST ONE COMMUNICATION CIRCUIT EXTENDING BETWEEN SAID CONTROL OFFICE AND EACH SAID CONTROLLER APPARATUS, MEANS AT SAID CONTROL OFFICE FOR TRANSMITTING OVER SAID COMMUNICATION CIRCUIT TO EACH OF SAID CONTROLLER APPARATUS SUCCESSIVE GROUPS OF REPETITIVE DISCRETE SIGNALS OF A PREDETERMINED NUMBER AND WITH THE SUCCESSIVE GROUPS DEMARCATED BY A DISTINCTIVE SYNCHRONIZING SIGNAL, DIGITAL COUNTING MEANS INCLUDED WITHIN EACH SAID CONTROLLER MEANS FOR COUNTING THE DISCRETE SIGNALS RECEIVED FROM SAID CONTROL OFFICE AND INCLUDING MEANS RESPONSIVE TO EACH SAID DISTINCTIVE SYNCHRONIZING SIGNAL FOR OPERATING SAID COUNTING MEANS TO A PREDETERMINED COUNT, MEANS FOR EACH SAID CONTROLLER APPARATUS AND OPERABLE TO EACH OF A PLURALITY OF DIFFERENT CONDITIONS FOR SELECTING THE MEANS RESPONSIVE TO THE ATTAINMENT BY SAID COUNTING MEANS OF A FIRST PREDETERMINED COUNT FOR GOVERNING THE RESPECTIVE TRAFFIC SIGNAL TO INITIATE THE DISPLAY OF A FIRST COMBINATION OF SIGNAL INDICATIONS AND BEING ALSO RESPONSIVE TO THE ATTAINMENT BY SAID COUNTING MEANS OF DIFFERENT SECOND PREDETERMINED COUNT FOR GOVERNING THE RESPECTIVE TRAFFIC SIGNAL TO INITIATE DISPLAY OF A SECOND COMBINATION OF SIGNAL INDICATIONS.

Claim 2

A SYSTEM FOR CONTROLLING A PLURALITY OF TRAFFIC SIGNALS RESPECTIVELY GOVERNING TRAFFIC AT SPACED INTERSECTIONS FROM A CONTROL OFFICE COMPRISING IN COMBINATION, CONTROLLER APPARATUS FOR THE TRAFFIC SIGNAL AT EACH OF SAID INTERSECTIONS, AT LEAST ONE COMMUNICATION CIRCUIT EXTENDING BETWEEN SAID CONTROL OFFICE AND EACH SAID CONTROLLER APPARATUS, MEANS AT SAID CONTROL OFFICE FOR TRANSMITTING OVER SAID COMMUNICATION CIRCUIT TO EACH OF SAID CONTROLLER APPARATUS SUCCESSIVE GROUPS OF REPETITIVE DISCRETE SIGNALS OF A PREDETERMINED NUMBER AND WITH THE SUCCESSIVE GROUPS DEMARCATED BY A DISTINCTIVE SYNCHRONIZING SIGNAL, DIGITAL COUNTING MEANS INCLUDED WITHIN EACH SAID CONTROLLER MEANS FOR COUNTING THE DISCRETE SIGNALS RECEIVED FROM SAID CONTROL OFFICE AND INCLUDING MEANS RESPONSIVE TO EACH SAID DISTINCTIVE SYNCHRONIZING SIGNAL FOR OPERATING SAID COUNTING MEANS TO A PREDETERMINED COUNT, MEANS FOR EACH SAID CONTROLLER APPARATUS AND OPERABLE TO EACH OF A PLURALITY OF DIFFERENT CONDITIONS FOR SELECTING THE MEANS RESPONSIVE TO THE ATTAINMENT BY SAID COUNTING MEANS OF A FIRST PREDETERMINED COUNT FOR GOVERNING THE RESPECTIVE TRAFFIC SIGNAL TO INITIATE THE DISPLAY OF A FIRST COMBINATION OF SIGNAL INDICATIONS AND BEING ALSO RESPONSIVE TO THE ATTAINMENT BY SAID COUNTING MEANS OF DIFFERENT SECOND PREDETERMINED COUNT FOR GOVERNING THE RESPECTIVE TRAFFIC SIGNAL TO INITIATE DISPLAY OF A SECOND COMBINATION OF SIGNAL INDICATIONS.