Conversion method for double interface IC card contact type/non-contact type working mode
A non-contact, working-mode technology, applied to record carriers used by machines, instruments, induction record carriers, etc., can solve problems such as difficulty in ensuring correct conversion
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[0007] As shown in Figure 1, the conversion method of the contact type / non-contact mode of operation of dual-interface IC card of the present invention comprises the following steps:
[0008] When the system is powered on and reset, it works on the non-contact interface by default;
[0009] Determine whether there is a contact reset signal:
[0010] If so, the system will switch to the contact mode of operation, and the system will still work in the contact mode regardless of whether a non-contact field strength (ie: radio frequency electromagnetic field) is generated during the contact transaction. If the IC card is pulled out, When the radio frequency electromagnetic field is still maintained, it is still in the contact mode but the contact transaction is stopped, and no contactless transaction will be carried out; when the radio frequency electromagnetic field jumps, it will switch to the non-contact working mode for contactless transaction;
[0011] If not, the system mai...
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