PROBLEM TO BE SOLVED: To provide an automatic ticket examination machine, an IC card processor and an automatic ticket examination system, capable of improving the convenience of a passenger, and easily and certainly deciding operation abnormality of equipment by improving the reliability of processing.;SOLUTION: This automatic ticket examination system 1 has a plurality of automatic ticket examination machines 2 and a monitor 4. By holding an IC card to an antenna part 12 of the automatic ticket examination machine 2, processing data on a preceding transaction is read through a R/W 13. The same arithmetic processing as the preceding transaction is executed to execute collation in a CPU 10. As a result of the collation, when the data do not coincide, a gate 14 is closed to forbid passage, and the abnormality is displayed through a display part 15.;COPYRIGHT: (C)2005,JPO&NCIPI
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