Electronic vehicle toll collection system and method
May 17, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3602881 RF data exchange system Universally applicable, in-motion and automatic toll paying system using microwaves Toll collection system Batteryless, portable, frequency divider useful as a transponder of electromagnetic radiation Verification system, for example for passing through a toll point Remotely interrogated transponder Electronic identification system Patent #: 4937581 InventorsApplicationNo. 525103 filed on 05/17/1990US Classes:705/13, Transportation facility access (e.g., fare, toll, parking)235/384, Transportation340/928Combined (e.g., toll systems, one-way)ExaminersPrimary: Shaw, Dale M.Assistant: Huntley, David Attorney, Agent or FirmForeign Patent References
International ClassesG06F 015/21G07B 015/00 G08G 001/00 AbstractA system for automatic collection of tolls includes a toll facility, an in-vehicle toll processor having memory for storing a toll-money-available quantity purchased by the user, and a toll-facility-identification site that transmits a toll-facility-identifier signal indicating the identity of the upcoming toll facility and the toll to be collected. As the vehicle approaches the identification site, the in-vehicle processor receives the identifier signal and calculates the toll to be debited. When the vehicle passes through the toll facility, the facility transmits a toll-collect signal instructing the in-vehicle toll processor to debit the calculated toll from memory. The in-vehicle processor debits the calculated amount and transmits an acknowledgement signal to the toll facility.Other References
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