Title: Tax controller
Application Number: 200510101917 Application Date: 2005.12.08
Publication Number: 1979571 Publication Date: 2007.06.13
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G07G1/12;G07G1/00
Applicant(s) Name: Changcheng Development Science-Technology Co., Ltd Address:
Inventor(s) Name: Huang Xin;Wang Hongxing;Wei Youkun
Attorney & Agent: guowei gang
Abstract:
    The invention relates to a tax-controlled cash register, comprising power supply, master control module, data storage module, real-time clock module, user card module, tax-control card module, and communication interface module, where the power supply module is connected with the data storage module through filter and supplies power to the data storage module. Because of adding special anti-interference devices at the power supply port of the data memory in the data storage course, it can largely inhibit interference factors caused by the power supply, thus improving data storage reliability and the operating reliability of the whole machine; it adopts self-recovery fuse to protect the user card power supply circuit, and when the third party makes various physical attacks to the user card seat, this can cause supply current of the user card to suddenly increase, and when the current exceeds the design value, the fuse will automatically break to assure not influencing the normal operations of the other module in system; and when the physical attacks are removed, the fuse will self-recover so that operation on the user card can return to normal.
Time: 7
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