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Method for using card slot contact as I/O interface circuit and contact card equipment thereof
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An interface circuit and contact card technology, applied in the field of smart cards, can solve the problems of other equipment damage, inconvenience, inconvenient use, etc., and achieve the effect of expanding the interactive interface
Active Publication Date: 2009-05-13
FEITIAN TECHNOLOGIES
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Abstract
Description
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Problems solved by technology
[0005] However, when the contact card device performs some operations such as upgrading, emulation or data extraction, it is generally necessary to open the shell of the contact card device, which is very inconvenient
It is more difficult when the contact card device is embedded in other devices, and it may cause damage to other devices, and it is very inconvenient to use
Method used
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Embodiment 1
[0046] see figure 1 , an embodiment of the present invention provides a method for applying a card slot contact as an I / O interface circuit, the method comprising:
[0047] Step 101: The contact card device establishes a connection with the access device.
[0048] Step 102: Judging whether the card slot contacts of the contact card device meet the conditions for being an I / O interface circuit, if so, go to step 103; otherwise, go to step 104.
[0049] Wherein, when the contact card device judges that the contact of the card slot satisfies the conditions for being applied as an I / O interface circuit, the access device is a special device for upgrading, simulating or extracting data from the contact card device;
[0050] When the contact card device judges that the contacts of the card slot do not meet the conditions for switching to the I / O interface, the access device is a standard IC card.
[0051] Step 103: Apply the contacts of the card slot as an I / O interface circuit to...
Embodiment 2
[0074] see image 3 , the embodiment of the present invention provides a contact card device 200, the contact card device 200 includes: a communication module 201, a judgment module 202, a first switching module 203, a second switching module 204;
[0075] A communication module 201, configured to establish a connection with an access device;
[0076] Judging module 202, used for judging whether the card slot contact of the contact card device satisfies the condition of being applied as an I / O interface circuit after the communication module 201 establishes a connection with the access device, and if so, notifies the first switching Module 203; otherwise, notify the second switching module 204;
[0077] The first switching module 203 is configured to apply the card slot contact as an I / O interface circuit after receiving the notification from the judging module 202;
[0078] Wherein, when the contact of the card slot is applied as an I / O interface circuit, the access device ...
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Abstract
The invention discloses a method for applying a card slot contact as an I / O interface circuit and a contact card device, and belongs to the smart card field. The method comprises the following steps: establishing connection between the contact card device and an access device; judging whether the card slot contact of the contact card device satisfies conditions for being applied as the I / O interface circuit, if yes, applying the card slot contact as the I / O interface circuit; otherwise, applying the card slot contact as an I / C card processing circuit. The contact card device comprises a first communication module, a first judgment module, a first switching module and a second switching module. The card slot contact of the contact card device is applied as the I / O interface circuit so that the contact card device is not required to be opened while performing special operations such as upgrade, simulation or data extraction and the like, thus expanding the interactive interface between an internal circuit of the card contact device and the access device without changing the performance and the technical indexes of the contact card device.
Description
technical field [0001] The invention relates to the field of smart cards, in particular to a method for applying a card slot contact as an I / O interface circuit and a contact card device. Background technique [0002] In recent years, the rapid development of information technology has brought people into an era of high-speed information dissemination. Of course, contact card equipment will be produced, such as a card reader, which is small and easy to carry. It is a standard PC peripheral. Specifically, it can be controlled by a computer and can complete the card reading operation. . Another example is the SIM card holder. [0003] The I / O interface is responsible for realizing that the CPU connects the IO circuit and peripheral devices through the systembus. According to the complexity of the circuit and equipment, the hardware of the I / O interface is mainly divided into two categories: 1) I / O interface chips, these Most of the chips are integrated circuits. Different ...
Claims
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Application Information
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