Communications: electrical – Traffic control indicator – Combined
Reexamination Certificate
2011-08-16
2011-08-16
Hunnings, Travis (Department: 2612)
Communications: electrical
Traffic control indicator
Combined
C340S909000
Reexamination Certificate
active
07999697
ABSTRACT:
A no-stop electronic toll collection (ETC) system based on WLAN is disclosed in the present invention. The system includes an on-board equipment, roadside equipments, a multiple access carriageway control system and a toll balance center. The communication is implemented between the on-board equipment and the roadside equipments according to the demand determined by the wireless local network protocol. The system offered in the present invention applies several technology means to effectively overcome the technology prejudice that the WLAN technology is not suitable for the ETC system. Compared with the existing technology, the present ETC system has the advantages of low cost, high efficiency, complete function and good performance index, therefore the present invention is very meaningful for the application and extension of the ETC system and the improvement of the industrial technology.
REFERENCES:
patent: 2003/0053433 (2003-03-01), Chun
patent: 2003/0053564 (2003-03-01), Kim et al.
patent: 2006/0071816 (2006-04-01), Tang et al.
patent: 1188288 (1998-07-01), None
patent: 1598880 (2005-03-01), None
patent: 1598882 (2005-03-01), None
International Search Report issued in Patent Application No. PCT/CN2006/001954 dated on Nov. 30, 2006.
Gao Xiang
Jia Lin
Li Yong
Beijing Watch Data System Co., Ltd.
Hunnings Travis
McDermott Will & Emery LLP
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