Electronic traffic control system
Device for indicating speed levels for motor vehicles
Cellular radiotelephone system structured for flexible use of different cell sizes
Vehicular direction guidance system, particularly for interchange of information between road mounted units and vehicle mounted equipment
Auto routing computer for eliminating the need for maps or travel instructions
Method for traffic determination in a routing and information system for individual motor vehicle traffic
Road vehicle control system
Course guidance and display apparatus for vehicles
Traffic speed surveillance system
Current location indication apparatus for use in an automotive vehicle
ApplicationNo. 436892 filed on 05/08/1995
US Classes:455/456.5, At system equipment (i.e., base station)340/905, Highway information (e.g., weather, speed limits, etc.)340/989, At remote location701/23, Automatic route guidance vehicle701/82Antispin, traction control, or drive slip control
ExaminersPrimary: Trans, Vincent N.
Attorney, Agent or Firm
International ClassG06F 165/00
AbstractA method and apparatus for determining and communicating shortest elapsed time route information to users wherein information of desired origin and destination combinations is received from the users in a central processor or computer, instant rates of travel on multiple route segments interconnecting various possible origins and destinations being monitored and transferred to the central processor which then calculates the route segment or segment combination providing shortest elapsed time routes for each origin-destination combination and transmitting that information to the respective user. Communication between the central processor and the users is preferably by telephone and more preferably by cellular telephone.