| 摘要 |
PURPOSE:To add an accurate date or time information to a trade information by providing a clock means that generate at least either a date or a time information which is not able to be easily modified of its setting from the external. CONSTITUTION:The titled equipment is provided with the clock means 6, 15 which generate at least either a data or a time information whose setting is not able to be easily modified from the external, and a means 11 to store a trade information in a data memory 12 at the time of trading after adding the information generated by the clock means 6, 15. Accordingly to add an accurate date or a time information to a trade information is made possible, and the reliability of the memory content of the trade information is remarkably improved. Since the information in the clock means 6, 15 is impossible to be modified from the external, the information can not be put out of order purposely and not be used for an illegal purpose, and the reliability for the use of the titled portable equipment can be remarkably improved. |
