Patent ID: 9530254
Filing Date: 2016-12-27
CPC Classification: G07B

Claim Text:
1. A method for programming a transponder in a moving vehicle in a roadway, the roadway having an electronic toll collection system that includes a plurality of antennas, the plurality of antennas are mounted to a gantry spanning the roadway such that each antenna defines a coverage area, and adjacent coverage areas are distinct but partly overlap, the transponder having a memory, the method comprising: transmitting, in a normal mode, a programming signal from one of the antennas over its coverage area to instruct the transponder to store data in its memory, the data being contained in the programming signal, wherein the transponder is to transmit a response signal after storing the data in its memory; determining that the transponder did not store the data in its memory by determining that the response signal was not received within a predetermined time of transmission of the programming signal in the normal mode; and based on the determination that the transponder did not store the data in its memory, selecting an antenna adjacent to said one of the antennas and transmitting the programming signal from the selected adjacent antenna over its coverage area.