CN101315660A - Double-interface intelligent memory card, read-write system and its operation mode conversion method - Google Patents
Double-interface intelligent memory card, read-write system and its operation mode conversion method Download PDFInfo
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Abstract
The invention discloses a converting method of the work pattern of a double interface intelligent memory card, which comprises the steps that: when the work pattern of the double interface intelligent memory card is judged to need to be converted from contact pattern into non-contact pattern, the power of the double interface intelligent memory card under the contact work pattern is cut off; when the work pattern of the double interface intelligent memory card is judged to need to be converted from the non-contact pattern into the contact pattern, the power of the double interface intelligent memory card under the contact work pattern is switched on. The invention also discloses a double interface intelligent memory card and a double interface intelligent memory card read-write system. By adopting the invention, the conversion of the work pattern of the double interface intelligent memory card can be realized under the condition of not carrying out inserting/pullout.
Description
Technical field
The present invention relates to the intelligent memory card technical field, particularly the mode switching method of double-interface intelligent memory card, read-write system and double-interface intelligent memory card.
Background technology
Smart card is IC-card (Integrated Circuit Card), is that one or more integrated circuit are encapsulated in the card, thereby possesses the card of functions such as information stores, logic determines and computing.Communication interface mode according between smart card and the read-write equipment equipment of read/write operation (that is: be used for smart card is carried out) can be divided into smart card: contact intelligent card, contactless smart card and double-interface smart card (contact combines with contactless).Wherein:
1) contact intelligent card, be contact with contact on the read-write equipment by the contact on the card obtain power supply energy, clock, the line data communication of going forward side by side, card must insert in the deck of read-write equipment and could normally use.For example: the IC phonecard just belongs to contact intelligent card.
2) contactless smart card, REID and IC-card technology have been merged, its inside is provided with radio frequency (RF) module, radio-frequency antenna and radio frequency contact, carries out data communication by radiowave and read-write equipment, thereby can maintain a certain distance between card and the read-write equipment.For example: the Bus Card that is widely used at present in the public transport field just belongs to contactless smart card.Because the restriction of IC-card size, in the contactless smart card power-supply system can not be arranged, need power by wireless mode by read-write equipment, therefore, when contact type intelligent card is carried out read-write operation, the signal that read-write equipment sends is made up of two parts stack: a part is a power supply signal, and this power supply signal produces the required direct supply of chip operation in the card after handling through the mu balanced circuit in the card; Another part then is instruction and data-signal, in the commander card chip finish the reading of data, revise, operation such as storage.
3) double-interface smart card, normally on the basis of contact intelligent card, add radio-frequency module and radio-frequency antenna, drawing radio frequency contact forms, this card possesses contact and contactless two kinds of communication interfaces simultaneously, can either work according to the mode of contact, can work according to non-contacting mode again.
Along with people are strong day by day to the demand of multifunction card, I take charge of the intelligent memory card that has proposed to integrate intelligent card function and memory card function, this card communicates by memory card interface and read-write equipment with the form encapsulation of storage card, and the storage space of more common smart card is bigger.Correspondingly, the card that integrates double-interface smart card function and memory card function is referred to as double-interface intelligent memory card.Fig. 1 is the inner structure synoptic diagram of existing double-interface intelligent memory card.Referring to Fig. 1, this double-interface intelligent memory card comprises: double-interface smart card, memory card controller, storage unit and memory card interface, also may comprise path selector switch (MUX), wherein:
The double-interface smart card that is used for double-interface intelligent memory card, be with the difference of double-interface smart card independently: when being operated in contact working method following time, not directly to contact with read-write equipment by the contact, but link to each other with memory card controller by the contact, obtain power supply energy, clock from memory card controller, and under the control of memory card controller, finish read/write operation;
Memory card controller is used for obtaining power supply energy, clock by memory card interface from read-write equipment, and communicates with read-write equipment, and control is to the read/write operation of double-interface smart card and storage unit;
Between memory card controller and the double-interface smart card may between link to each other, shown in dotted portion among the figure, also may set up physical path by MUX;
Memory card interface is the communication interface between double-interface intelligent memory card and the read-write equipment;
Storage unit is used to store data.
Because there is interference in the electric current and voltage on the contact contact to the transmission of radiofrequency signal, therefore, generally, double-interface smart card no matter, or double-interface intelligent memory card, all can not be operated in simultaneously under the way of contact and the noncontact mode, this just relates to the problem that how to realize double-interface smart card and the conversion of double-interface intelligent memory card working method.
The patent No. is the conversion method that the Chinese patent of CN1218268C discloses a kind of contact type working method of double-interface IC card, and this method comprises: during system power-on reset, acquiescence is operated in contactless interface; Judged whether contact reset signal: if contact reset signal is arranged, then system will transfer the contact working method to, and, when carrying out the contact transaction, no matter whether produce radio frequency electromagnetic field, system still is operated in the contact state, if IC-card is extracted, when radio frequency electromagnetic field still keeps, then still be in the contact mode state but stop contact and conclude the business, also can not carry out contactless transaction; When radio frequency electromagnetic field has saltus step, then be transformed into contactless working method and carry out contactless transaction; If non-contact type reset signal, then system keeps contactless working method, then insert contact card reader (being described read-write equipment), system is transformed into the contact state under the effect of contact clock and reset signal, under the effect of reset signal, make operation system of software enter reset mode, thereby enter the contact transaction.
Above-mentioned prior art scheme is when the conversion of the working method that realizes double-interface smart card, must realize power supply/outage by double-interface smart card being carried out plug/unplug to double-interface smart card, and plug repeatedly the serviceable life that not only will influence double-interface smart card, and bring very big inconvenience for people's use, be unfavorable for applying of double-interface smart card.Same problem also is present in the transfer process of existing double-interface intelligent memory card working method.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide the mode switching method of a kind of double-interface intelligent memory card, a kind of double-interface intelligent memory card read-write system and a kind of double-interface intelligent memory card, not carry out under the situation of plug/unplug, realize the conversion of double-interface intelligent memory card working method.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of mode switching method of double-interface intelligent memory card comprises:
The working method of double-interface intelligent memory card need be converted to when contactless by contact when judging, cut off the power supply of described double-interface intelligent memory card under the contact working method;
The working method of double-interface intelligent memory card when being converted to contact, need be connected the power supply of described double-interface intelligent memory card under the contact working method by contactless when judging.
This method may further include: on the user interface of read-write equipment, be provided with in advance expression by contact be converted to contactless conversion options and the expression by the contactless conversion options that is converted to contact;
Described judgment mode can comprise:
Read-write equipment is to described conversion options selected detection the whether;
Be converted to contactless conversion options when selected when detecting expression by contact, judge and to be converted to the working method of double-interface intelligent memory card contactless by contact;
When detecting expression by the contactless conversion options that is converted to contact when selected, judging need be with the working method of double-interface intelligent memory card by the contactless contact that is converted to.
This method may further include: the radio-frequency antenna induction radio frequency electromagnetic field in the described double-interface intelligent memory card;
Described judgment mode can comprise:
When radio-frequency antenna is sensed the radio frequency electromagnetic field generation, judge and to be converted to the working method of double-interface intelligent memory card contactless by contact;
When radio-frequency antenna was sensed radio frequency electromagnetic field and disappeared, judging need be with the working method of double-interface intelligent memory card by the contactless contact that is converted to.
Described mode of cutting off the electricity supply can comprise: described read-write equipment cuts off the power supply to described double-interface intelligent memory card;
The mode of described energized can comprise: described read-write equipment is powered to described double-interface intelligent memory card.
Described mode of cutting off the electricity supply can comprise: described read-write equipment instructs the memory card controller in the described double-interface intelligent memory card that described double-interface smart card is cut off the power supply;
The mode of described energized can comprise: described read-write equipment instructs the memory card controller in the described double-interface intelligent memory card that described double-interface smart card is powered.
Described mode of cutting off the electricity supply can comprise: radio-frequency module instructs the memory card controller in the described double-interface intelligent memory card that described double-interface smart card is cut off the power supply;
The mode of described energized can comprise: radio-frequency module instructs the memory card controller in the described double-interface intelligent memory card that described double-interface smart card is powered.
In the technique scheme, when setting up physical path by the path selector switch between the contact of memory card controller in the described double-interface intelligent memory card and double-interface smart card;
The mode of described outage can comprise: the described path selector switch of described memory card controller is set to disarmed state;
The mode of described power supply can comprise: the described path selector switch of described memory card controller is set to effective status.
In the technique scheme, between the contact of memory card controller in the described double-interface intelligent memory card and double-interface smart card, directly set up physical path, when described memory card controller self has path selector switch function;
The mode of described outage can comprise: the physical path between the contact of described memory card controller cut-out and described double-interface intelligent memory card;
The mode of described power supply can comprise: the physical path between the contact of described memory card controller connection and described double-interface intelligent memory card.
Preferably, radio-frequency module instruct the memory card controller in the described double-interface intelligent memory card mode can for: instruct by the input and output control line.
A kind of double-interface intelligent memory card comprises: double-interface smart card and memory card controller;
Comprise in the described double-interface smart card: radio-frequency antenna and radio-frequency module;
Wherein,
Described radio-frequency antenna is used to respond to the generation and the disappearance of radio frequency electromagnetic field;
Described radio-frequency module, be used for when radio-frequency antenna is sensed the radio frequency electromagnetic field generation, instruct described memory card controller that described double-interface smart card is cut off the power supply, when radio-frequency antenna is sensed the radio frequency electromagnetic field disappearance, instruct described memory card controller that described double-interface smart card is powered;
Described memory card controller is used for according to the instruction of radio-frequency module described double-interface smart card being cut off the power supply or power supply.
May further include in the described double-interface intelligent memory card: the path selector switch is used for setting up physical path between the contact of described memory card controller and double-interface smart card;
Described memory card controller can also be used for being set to disarmed state by described path selector switch and come the double-interface smart card outage is set to effective status by described path selector switch and comes double-interface smart card is powered.
Can directly set up physical path between the contact of described memory card controller and double-interface smart card;
Described memory card controller, can also be used for coming the double-interface smart card outage is come double-interface smart card is powered by the physical path between the contact of connection and described double-interface intelligent memory card by the physical path between the contact of cut-out and described double-interface intelligent memory card.
Described radio-frequency module can be used for instructing by the described memory card controller of input and output control pair.
A kind of double-interface intelligent memory card read-write system comprises: read-write equipment and double-interface intelligent memory card;
Described read-write equipment comprises user interface and judge module, wherein:
Described user interface, be used to provide expression by contact be converted to contactless conversion options and the expression by the contactless conversion options that is converted to contact;
Described judge module, be used for described conversion options selected detection the whether, be converted to contactless conversion options when selected by contact detecting expression, to described double-interface intelligent memory card outage, detecting expression by the contactless conversion options that is converted to contact when selected, to described double-interface intelligent memory card power supply.
Can comprise in the described double-interface intelligent memory card: memory card controller and double-interface smart card;
Described judge module, can also be used for being converted to contactless conversion options when selected by contact detecting expression, instruct described memory card controller that described double-interface smart card is cut off the power supply, when selected, instruct described memory card controller that described double-interface smart card is powered by the contactless conversion options that is converted to contact detecting expression;
Described memory card controller can be used for according to the instruction of judge module described double-interface smart card being cut off the power supply or power supply.
May further include in the described double-interface intelligent memory card: the path selector switch is used for setting up physical path between the contact of described memory card controller and double-interface smart card;
Described memory card controller can also be used for being set to disarmed state by described path selector switch and come the double-interface smart card outage is set to effective status by described path selector switch and comes double-interface smart card is powered.
Can directly set up physical path between the contact of described memory card controller and double-interface smart card;
Described memory card controller, can also be used for coming the double-interface smart card outage is come double-interface smart card is powered by the physical path between the contact of connection and described double-interface intelligent memory card by the physical path between the contact of cut-out and described double-interface intelligent memory card.
As seen from the above technical solution, the mode switching method of double-interface intelligent memory card provided by the invention, by cutting off or connect the power supply of double-interface intelligent memory card under the contact working method, realized contact and contactless between automatic conversion, need not in the described transfer process double-interface intelligent memory card is carried out plug/unplug, thereby can prolong the serviceable life of double-interface smart card, and offer convenience for people's use.
Double-interface intelligent memory card provided by the invention, generation and disappearance by radio-frequency antenna induction radio frequency electromagnetic field, and by radio-frequency module when radio-frequency antenna is sensed that radio frequency electromagnetic field produces or is disappeared, by cutting off or connect the power supply of double-interface intelligent memory card under the contact working method, thereby realized contact and contactless between automatic conversion, need not in the described transfer process double-interface intelligent memory card is carried out plug/unplug, thereby can prolong the serviceable life of double-interface smart card, and offer convenience for people's use.
Double-interface intelligent memory card read-write system provided by the invention, by on the user interface of read-write equipment, providing expression to be converted to contactless conversion options by contact, and expression is by the contactless conversion options that is converted to contact, and by judge module to selected detection the whether of conversion options in the user interface, detecting corresponding conversion options when selected, by cutting off or connect the power supply of double-interface intelligent memory card under the contact working method, realized contact and contactless between automatic conversion, need not in the described transfer process double-interface intelligent memory card is carried out plug/unplug, thereby can prolong the serviceable life of double-interface smart card, and offer convenience for people's use.
In addition, the enforcement of technical solution of the present invention is all very little to the change of existing read-write equipment and double-interface intelligent memory card, and cost is lower.For example: read-write equipment itself provide and the user between mutual user interface, the present invention only needs to be provided for to represent to ask the conversion options changed on existing user interface, the user just can select corresponding conversion options when needed, the notice read-write equipment is changed, and read-write equipment is detecting after the user selected conversion options, only needs to cut off by appointment or connect the power supply of double-interface intelligent memory card under the contact working method getting final product.
Description of drawings
Fig. 1 is the inner structure synoptic diagram of existing double-interface intelligent memory card;
Fig. 2 is the synoptic diagram of the mode switching method of double-interface intelligent memory card of the present invention;
Fig. 3 is the synoptic diagram of the mode switching method of double-interface intelligent memory card in the embodiment of the invention one;
Fig. 4 is the synoptic diagram of the mode switching method of double-interface intelligent memory card in the embodiment of the invention two;
Fig. 5 is the synoptic diagram of the mode switching method of double-interface intelligent memory card in the embodiment of the invention three.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Main thought of the present invention is to cut off or connect the power supply of double-interface intelligent memory card under the contact working method by being in due course, thereby double-interface intelligent memory card is carried out under the situation of plug/unplug need not, realize contact and contactless between automatic conversion.
When concrete enforcement is of the present invention, can adopt multiple mode to judge whether to carry out the conversion of working method and judge which kind of working method to be transformed into which kind of working method from.For two read-write equipment and the less example of double-interface intelligent memory card change are described below:
First kind of mode that triggers conversion: can on the user interface of read-write equipment, conversion options be set in advance, comprise that expression is converted to contactless conversion options and expression by the contactless conversion options that is converted to contact by contact; And in the course of work of double-interface intelligent memory card, by read-write equipment to described conversion options selected detection the whether: be converted to contactless conversion options when selected when detecting expression by contact, judgement need be converted to the working method of double-interface intelligent memory card contactless by contact, carry out the operation of cutting off the power supply of double-interface intelligent memory card under the contact working method subsequently; When detecting expression by the contactless conversion options that is converted to contact when selected, judgement need be carried out the operation of connecting the power supply of double-interface intelligent memory card under the contact working method subsequently with the working method of double-interface intelligent memory card by the contactless contact that is converted to.
Second kind of mode that triggers conversion: because the radio-frequency antenna in the double-interface intelligent memory card can be responded to the generation and the disappearance of radio frequency electromagnetic field, therefore, can utilize this point in the course of work of double-interface intelligent memory card, by radio-frequency antenna radio frequency electromagnetic field is responded to: when sensing the radio frequency electromagnetic field generation, judgement need be converted to the working method of double-interface intelligent memory card contactless by contact, carry out the operation of cutting off the power supply of double-interface intelligent memory card under the contact working method subsequently; When sensing radio frequency electromagnetic field and disappear, judgement need be carried out the operation of connecting the power supply of double-interface intelligent memory card under the contact working method subsequently with the working method of double-interface intelligent memory card by the contactless contact that is converted to.
After judgement need be carried out the conversion of working method, need cut off or connect the power supply of double-interface intelligent memory card under the contact working method, for this reason, the invention provides the mode of the power supply of three kinds of cut-out/connection double-interface intelligent memory cards under the contact working method, specifically see also the mode switching method synoptic diagram of double-interface intelligent memory card of the present invention shown in Figure 2.Wherein:
First kind of mode that realizes conversion:
As Fig. 2 1. shown in, when the working method of double-interface intelligent memory card being converted to when contactless by contact, directly double-interface intelligent memory card is cut off the power supply by read-write equipment, at this moment, memory card controller can't by and memory card interface between memory card bus obtain power supply from read-write equipment, double-interface intelligent memory card will enter contactless working method, wait for that radiofrequency signal provides power supply;
When need be with the working method of double-interface intelligent memory card by contactless when being converted to contact, read-write equipment recovers the power supply to double-interface intelligent memory card, at this moment, memory card controller will by and memory card interface between memory card bus obtain power supply from read-write equipment, thereby enter the contact working method.
Second kind of mode that realizes conversion:
As Fig. 2 2. shown in, suppose to set up physical path by path selector switch (MUX) between the contact of memory card controller in the double-interface intelligent memory card and double-interface smart card;
When the working method of double-interface intelligent memory card being converted to when contactless by contact, this MUX is set to disarmed state by memory card controller, at this moment, though read-write equipment is still being powered to double-interface intelligent memory card, but because the physical path between memory card controller and the double-interface intelligent memory card is cut off, double-interface intelligent memory card can't obtain to be used to support the power supply of contact working method from read-write equipment, thereby, to enter contactless working method, wait for that radiofrequency signal provides power supply;
When need be with the working method of double-interface intelligent memory card by contactless when being converted to contact, this MUX is set to effective status by memory card controller, at this moment, the power supply signal that comes from read-write equipment will be supplied to double-interface intelligent memory card and be used to support the contact working method, and double-interface intelligent memory card enters the contact working method.
The third realizes the mode of conversion:
As Fig. 2 3. shown in, suppose directly to set up physical path between the contact of memory card controller in the double-interface intelligent memory card and double-interface smart card, at this moment, this memory card controller self has the MUX function;
When the working method of double-interface intelligent memory card being converted to when contactless by contact, by the physical path between the contact of memory card controller cut-out and double-interface intelligent memory card, at this moment, though read-write equipment is still being powered to double-interface intelligent memory card, but because the physical path between memory card controller and the double-interface intelligent memory card is cut off, double-interface intelligent memory card can't obtain to be used to support the power supply of contact working method from read-write equipment, thereby, to enter contactless working method, wait for that radiofrequency signal provides power supply;
When need be with the working method of double-interface intelligent memory card by contactless when being converted to contact, by the physical path between the contact of memory card controller connection and double-interface intelligent memory card, at this moment, the power supply signal that comes from read-write equipment will be supplied to double-interface intelligent memory card and be used to support the contact working method, and double-interface intelligent memory card enters the contact working method.
Above-mentioned first kind of mode that triggers conversion all can be used in combination with above-mentioned three kinds of modes that realize conversion, that is: read-write equipment detects conversion options when selected, can cut off/connect the power supply of double-interface intelligent memory card voluntarily, also memory card controller be can notify, invalid/effective status or the direct physical path between cut-out/connection and the double-interface intelligent memory card are set to by memory card controller path selector switch.And above-mentioned second kind of mode that triggers conversion preferably can be used in combination with above-mentioned second kind or the third mode that realizes conversion, that is: when radio-frequency antenna is sensed radio frequency electromagnetic field generation/disappearance, by radio-frequency module notice memory card controller, and be set to invalid/effective status or the direct physical path between cut-out/connection and the double-interface intelligent memory card by memory card controller path selector switch.
Below by three preferred embodiments the mode of how to carry out the above-mentioned triggering conversion of the present invention is further described with the combining of mode of realizing conversion.
Embodiment one:
In the present embodiment, described first kind mode that triggers conversion is used in combination with first kind of mode that realizes conversion.Fig. 3 is the synoptic diagram of the mode switching method of double-interface intelligent memory card in the embodiment of the invention one, among Fig. 3, is that example describes to be converted to contactless by contact:
Left-half is the user interface signal in the read-write equipment, in the function choosing-item that user interface provided, relates to the option that double-interface intelligent memory card is provided with " radio-frequency enabled selection " by name, and it is contactless that this option represents that request is converted to by contact;
Right half part is the enlarged drawing of double-interface intelligent memory card;
What connect read-write equipment and double-interface intelligent memory card is: data signal line and power supply (VCC) line etc.
When read-write equipment detects the user and has selected the option of described " radio-frequency enabled selection ", directly cut off and double-interface intelligent memory card between the VCC physical path, thereby cut off the power supply of double-interface intelligent memory card under the contact working method, subsequently, double-interface intelligent memory card will enter the contactless pattern after sensing radio frequency electromagnetic field.
Above in conjunction with Fig. 3 to being converted to contactless being illustrated by contact, realizing by contactless when being converted to contact, can carry out with reference to as above process.For example: the option that " contact function selecting " by name can be set, this option represents that request is by the contactless contact that is converted to, when read-write equipment detects the user and has selected the option of described " contact function selecting ", VCC physical path between connection and the double-interface intelligent memory card, thereby recover the power supply of double-interface intelligent memory card under the contact working method, subsequently, double-interface intelligent memory card enters the contact mode of operation.
Embodiment two:
In the present embodiment, described second kind mode that triggers conversion is used in combination with second kind of mode that realizes conversion.Fig. 4 is the synoptic diagram of the mode switching method of double-interface intelligent memory card in the embodiment of the invention two, referring to Fig. 4:
Left-half is a read-write equipment; Though present embodiment adopts the mode by radio-frequency antenna induction radio frequency electromagnetic field to trigger conversion, but present embodiment also can provide in user interface as the option of the option of " the radio-frequency enabled selection " of embodiment one and " contacting function selecting " and select for the user;
Right half part is the enlarged drawing of double-interface intelligent memory card;
What connect read-write equipment and double-interface intelligent memory card is: data signal line and VCC line etc.;
Link to each other by bus between MUX and the memory card controller;
Also link to each other between MUX and the double-interface intelligent memory card by bus;
Described bus comprises the interface line between I/O control line and memory card controller and the double-interface intelligent memory card, wherein, the I/O control line is used for transmitting instruction between memory card controller and double-interface intelligent memory card, interface line is the physical path between memory card controller and the double-interface intelligent memory card, in the present embodiment, be example with 7816 interface lines.
When radio-frequency antenna is sensed the radio frequency electromagnetic field generation, send the instruction notification memory card controller by radio-frequency module by the I/O control line and cut off 7816 physical paths, after memory card controller receives described instruction, MUX is set to disarmed state, thereby cut off this 7816 physical path, make double-interface intelligent memory card can't obtain to be used to support the power supply of contact working method, thereby, contactless working method will be entered;
When radio-frequency antenna is sensed the radio frequency electromagnetic field disappearance, send the instruction notification memory card controller by radio-frequency module by the I/O control line and connect 7816 physical paths, after memory card controller receives described instruction, MUX is set to effective status, thereby connected this 7816 physical path, make double-interface intelligent memory card can obtain to be used to support the power supply of contact working method, thereby, the contact working method will be entered.
Described I/O control line can increase, be exclusively used in the I/O control line that transmits conversion instruction of the present invention newly in double-interface intelligent memory card, also can be the expanded application to existing I/O control line.
Embodiment three:
In the present embodiment, described first kind mode that triggers conversion is used in combination with the third mode that realizes conversion.Fig. 5 is the synoptic diagram of the mode switching method of double-interface intelligent memory card in the embodiment of the invention three, among Fig. 5, is that example describes to be converted to contactless by contact:
Left-half is the user interface signal in the read-write equipment, in the function choosing-item that user interface provided, relates to the option that double-interface intelligent memory card is provided with " radio-frequency enabled selection " by name, and it is contactless that this option represents that request is converted to by contact;
Right half part is the enlarged drawing of double-interface intelligent memory card;
What connect read-write equipment and double-interface intelligent memory card is: data signal line and VCC line etc.;
Link to each other by bus between memory card controller and the double-interface intelligent memory card;
Described bus comprises the interface line between I/O control line and memory card controller and the double-interface intelligent memory card, wherein, the I/O control line is used for transmitting instruction between memory card controller and double-interface intelligent memory card, interface line is the physical path between memory card controller and the double-interface intelligent memory card, in the present embodiment, be example with 7816 interface lines.
When read-write equipment detects the user and has selected the option of described " radio-frequency enabled selection ", send the instruction notification memory card controller by data signal line and cut off 7816 physical paths, after memory card controller receives described instruction, directly cut off and double-interface smart card between 7816 physical paths, thereby cut off the power supply of double-interface intelligent memory card under the contact working method, subsequently, double-interface intelligent memory card will enter the contactless pattern after sensing radio frequency electromagnetic field.
Above in conjunction with Fig. 5 to being converted to contactless being illustrated by contact, realizing by contactless when being converted to contact, can carry out with reference to as above process.For example: the option that " contact function selecting " by name can be set, this option represents that request is by the contactless contact that is converted to, when read-write equipment detects the user and has selected the option of described " contact function selecting ", send the instruction notification memory card controller by data signal line and connect 7816 physical paths, thereby recover the power supply of double-interface intelligent memory card under the contact working method, subsequently, double-interface intelligent memory card enters the contact mode of operation.
Corresponding to said method, the present invention also provides a kind of double-interface intelligent memory card and a kind of double-interface intelligent memory card read-write system, is illustrated respectively below.
The composition structure of double-interface intelligent memory card provided by the present invention and existing double-interface intelligent memory card shown in Figure 1 is basic identical, comprising: double-interface smart card and memory card controller; And, comprise in the described double-interface smart card: radio-frequency antenna and radio-frequency module; Wherein,
Described radio-frequency antenna is used to respond to the generation and the disappearance of radio frequency electromagnetic field;
Described radio-frequency module, be used for when radio-frequency antenna is sensed the radio frequency electromagnetic field generation, instruct described memory card controller that described double-interface smart card is cut off the power supply, when radio-frequency antenna is sensed the radio frequency electromagnetic field disappearance, instruct described memory card controller that described double-interface smart card is powered;
Described memory card controller is used for according to the instruction of radio-frequency module described double-interface smart card being cut off the power supply or power supply.
May further include in the described double-interface intelligent memory card: the path selector switch is used for setting up physical path between the contact of described memory card controller and double-interface smart card; At this moment, described memory card controller can also be used for being set to disarmed state by described path selector switch and come the double-interface smart card outage is set to effective status by described path selector switch and comes double-interface smart card is powered.
The same with prior art, also can directly set up physical path between the contact of described memory card controller and double-interface smart card; At this moment, described memory card controller, can also be used for coming the double-interface smart card outage is come double-interface smart card is powered by the physical path between the contact of connection and described double-interface intelligent memory card by the physical path between the contact of cut-out and described double-interface intelligent memory card.
Preferably, described radio-frequency module can be used for instructing by the described memory card controller of input and output control pair.Described input and output control line can increase, be exclusively used in the input and output control line that transmits instruction of the present invention newly in double-interface intelligent memory card, also can be the expanded application to existing input and output control line.
Double-interface intelligent memory card read-write system provided by the invention comprises: read-write equipment and double-interface intelligent memory card; And described read-write equipment comprises user interface and judge module, wherein:
Described user interface, be used to provide expression by contact be converted to contactless conversion options and the expression by the contactless conversion options that is converted to contact;
Described judge module, be used for described conversion options selected detection the whether, be converted to contactless conversion options when selected by contact detecting expression, to described double-interface intelligent memory card outage, detecting expression by the contactless conversion options that is converted to contact when selected, to described double-interface intelligent memory card power supply.
Can comprise in the described double-interface intelligent memory card: memory card controller and double-interface smart card;
Described judge module, can also be used for being converted to contactless conversion options when selected by contact detecting expression, instruct described memory card controller that described double-interface smart card is cut off the power supply, when selected, instruct described memory card controller that described double-interface smart card is powered by the contactless conversion options that is converted to contact detecting expression;
Described memory card controller can be used for according to the instruction of judge module described double-interface smart card being cut off the power supply or power supply.
May further include in the described double-interface intelligent memory card: the path selector switch is used for setting up physical path between the contact of described memory card controller and double-interface smart card; At this moment, described memory card controller can also be used for being set to disarmed state by described path selector switch and come the double-interface smart card outage is set to effective status by described path selector switch and comes double-interface smart card is powered.
Also can directly set up physical path between the contact of described memory card controller and double-interface smart card; At this moment, described memory card controller, can also be used for coming the double-interface smart card outage is come double-interface smart card is powered by the physical path between the contact of connection and described double-interface intelligent memory card by the physical path between the contact of cut-out and described double-interface intelligent memory card.
As seen from the above technical solution, the mode switching method of double-interface intelligent memory card provided by the invention, by cutting off or connect the power supply of double-interface intelligent memory card under the contact working method, realized contact and contactless between automatic conversion, need not in the described transfer process double-interface intelligent memory card is carried out plug/unplug, thereby can prolong the serviceable life of double-interface smart card, and offer convenience for people's use.
Double-interface intelligent memory card provided by the invention, generation and disappearance by radio-frequency antenna induction radio frequency electromagnetic field, and by radio-frequency module when radio-frequency antenna is sensed that radio frequency electromagnetic field produces or is disappeared, by cutting off or connect the power supply of double-interface intelligent memory card under the contact working method, thereby realized contact and contactless between automatic conversion, need not in the described transfer process double-interface intelligent memory card is carried out plug/unplug, thereby can prolong the serviceable life of double-interface smart card, and offer convenience for people's use.
Double-interface intelligent memory card read-write system provided by the invention, by on the user interface of read-write equipment, providing expression to be converted to contactless conversion options by contact, and expression is by the contactless conversion options that is converted to contact, and by judge module to selected detection the whether of conversion options in the user interface, detecting corresponding conversion options when selected, by cutting off or connect the power supply of double-interface intelligent memory card under the contact working method, realized contact and contactless between automatic conversion, need not in the described transfer process double-interface intelligent memory card is carried out plug/unplug, thereby can prolong the serviceable life of double-interface smart card, and offer convenience for people's use.
In addition, the enforcement of technical solution of the present invention is all very little to the change of existing read-write equipment and double-interface intelligent memory card, and cost is lower.For example: read-write equipment itself provide and the user between mutual user interface, the present invention only needs to be provided for to represent to ask the conversion options changed on existing user interface, the user just can select corresponding conversion options when needed, the notice read-write equipment is changed, and read-write equipment is detecting after the user selected conversion options, only needs to cut off by appointment or connect the power supply of double-interface intelligent memory card under the contact working method getting final product.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1, a kind of mode switching method of double-interface intelligent memory card is characterized in that, comprising:
The working method of double-interface intelligent memory card need be converted to when contactless by contact when judging, cut off the power supply of described double-interface intelligent memory card under the contact working method;
The working method of double-interface intelligent memory card when being converted to contact, need be connected the power supply of described double-interface intelligent memory card under the contact working method by contactless when judging.
2, method according to claim 1, it is characterized in that this method further comprises: on the user interface of read-write equipment, be provided with in advance expression by contact be converted to contactless conversion options and the expression by the contactless conversion options that is converted to contact;
Described judgment mode comprises:
Read-write equipment is to described conversion options selected detection the whether;
Be converted to contactless conversion options when selected when detecting expression by contact, judge and to be converted to the working method of double-interface intelligent memory card contactless by contact;
When detecting expression by the contactless conversion options that is converted to contact when selected, judging need be with the working method of double-interface intelligent memory card by the contactless contact that is converted to.
3, method according to claim 1 is characterized in that, this method further comprises: the radio-frequency antenna induction radio frequency electromagnetic field in the described double-interface intelligent memory card;
Described judgment mode comprises:
When radio-frequency antenna is sensed the radio frequency electromagnetic field generation, judge and to be converted to the working method of double-interface intelligent memory card contactless by contact;
When radio-frequency antenna was sensed radio frequency electromagnetic field and disappeared, judging need be with the working method of double-interface intelligent memory card by the contactless contact that is converted to.
4, method according to claim 2 is characterized in that:
Described mode of cutting off the electricity supply comprises: described read-write equipment cuts off the power supply to described double-interface intelligent memory card;
The mode of described energized comprises: described read-write equipment is powered to described double-interface intelligent memory card.
5, method according to claim 2 is characterized in that:
Described mode of cutting off the electricity supply comprises: described read-write equipment instructs the memory card controller in the described double-interface intelligent memory card that described double-interface smart card is cut off the power supply;
The mode of described energized comprises: described read-write equipment instructs the memory card controller in the described double-interface intelligent memory card that described double-interface smart card is powered.
6, method according to claim 3 is characterized in that:
Described mode of cutting off the electricity supply comprises: radio-frequency module instructs the memory card controller in the described double-interface intelligent memory card that described double-interface smart card is cut off the power supply;
The mode of described energized comprises: radio-frequency module instructs the memory card controller in the described double-interface intelligent memory card that described double-interface smart card is powered.
7, according to claim 5 or 6 described methods, it is characterized in that, when setting up physical path by the path selector switch between the contact of memory card controller in the described double-interface intelligent memory card and double-interface smart card,
The mode of described outage comprises: the described path selector switch of described memory card controller is set to disarmed state;
The mode of described power supply comprises: the described path selector switch of described memory card controller is set to effective status.
8, according to claim 5 or 6 described methods, it is characterized in that, between the contact of memory card controller in the described double-interface intelligent memory card and double-interface smart card, directly set up physical path, when described memory card controller self has path selector switch function
The mode of described outage comprises: the physical path between the contact of described memory card controller cut-out and described double-interface intelligent memory card;
The mode of described power supply comprises: the physical path between the contact of described memory card controller connection and described double-interface intelligent memory card.
9, method according to claim 6 is characterized in that:
Radio-frequency module instructs the mode of the memory card controller in the described double-interface intelligent memory card to be: instruct by the input and output control line.
10, a kind of double-interface intelligent memory card comprises: double-interface smart card and memory card controller;
Comprise in the described double-interface smart card: radio-frequency antenna and radio-frequency module;
It is characterized in that:
Described radio-frequency antenna is used to respond to the generation and the disappearance of radio frequency electromagnetic field;
Described radio-frequency module, be used for when radio-frequency antenna is sensed the radio frequency electromagnetic field generation, instruct described memory card controller that described double-interface smart card is cut off the power supply, when radio-frequency antenna is sensed the radio frequency electromagnetic field disappearance, instruct described memory card controller that described double-interface smart card is powered;
Described memory card controller is used for according to the instruction of radio-frequency module described double-interface smart card being cut off the power supply or power supply.
11, double-interface intelligent memory card according to claim 10 is characterized in that:
Further comprise in the described double-interface intelligent memory card: the path selector switch is used for setting up physical path between the contact of described memory card controller and double-interface smart card;
Described memory card controller also is used for being set to disarmed state by described path selector switch and comes the double-interface smart card outage is set to effective status by described path selector switch and comes double-interface smart card is powered.
12, double-interface intelligent memory card according to claim 10 is characterized in that:
Directly set up physical path between the contact of described memory card controller and double-interface smart card;
Described memory card controller, also be used for coming the double-interface smart card outage is come double-interface smart card is powered by the physical path between the contact of connection and described double-interface intelligent memory card by the physical path between the contact of cut-out and described double-interface intelligent memory card.
13, according to each described double-interface intelligent memory card of claim 10 to 12, it is characterized in that:
Described radio-frequency module is used for instructing by the described memory card controller of input and output control pair.
14, a kind of double-interface intelligent memory card read-write system comprises: read-write equipment and double-interface intelligent memory card;
It is characterized in that:
Described read-write equipment comprises user interface and judge module, wherein:
Described user interface, be used to provide expression by contact be converted to contactless conversion options and the expression by the contactless conversion options that is converted to contact;
Described judge module, be used for described conversion options selected detection the whether, be converted to contactless conversion options when selected by contact detecting expression, to described double-interface intelligent memory card outage, detecting expression by the contactless conversion options that is converted to contact when selected, to described double-interface intelligent memory card power supply.
15, double-interface intelligent memory card read-write system according to claim 14 is characterized in that:
Comprise in the described double-interface intelligent memory card: memory card controller and double-interface smart card;
Described judge module, also be used for being converted to contactless conversion options when selected by contact detecting expression, instruct described memory card controller that described double-interface smart card is cut off the power supply, when selected, instruct described memory card controller that described double-interface smart card is powered by the contactless conversion options that is converted to contact detecting expression;
Described memory card controller is used for according to the instruction of judge module described double-interface smart card being cut off the power supply or power supply.
16, double-interface intelligent memory card read-write system according to claim 15 is characterized in that:
Further comprise in the described double-interface intelligent memory card: the path selector switch is used for setting up physical path between the contact of described memory card controller and double-interface smart card;
Described memory card controller also is used for being set to disarmed state by described path selector switch and comes the double-interface smart card outage is set to effective status by described path selector switch and comes double-interface smart card is powered.
17, double-interface intelligent memory card read-write system according to claim 15 is characterized in that:
Directly set up physical path between the contact of described memory card controller and double-interface smart card;
Described memory card controller, also be used for coming the double-interface smart card outage is come double-interface smart card is powered by the physical path between the contact of connection and described double-interface intelligent memory card by the physical path between the contact of cut-out and described double-interface intelligent memory card.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101162281A CN101315660B (en) | 2008-07-07 | 2008-07-07 | Double-interface intelligent memory card, read-write system and its operation mode conversion method |
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| CN2008101162281A CN101315660B (en) | 2008-07-07 | 2008-07-07 | Double-interface intelligent memory card, read-write system and its operation mode conversion method |
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| CN101315660A true CN101315660A (en) | 2008-12-03 |
| CN101315660B CN101315660B (en) | 2010-09-08 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254137A (en) * | 2011-07-15 | 2011-11-23 | 北京握奇数据系统有限公司 | Dual-interface smart card and data communication method thereof |
| CN102622635A (en) * | 2011-01-27 | 2012-08-01 | 中国移动通信集团公司 | Dual interface SIM card and non-contact communication method |
| CN102799393A (en) * | 2012-06-27 | 2012-11-28 | 大唐微电子技术有限公司 | Method and device for working condition management on dual-interface smart card chip |
| CN102810175A (en) * | 2011-06-24 | 2012-12-05 | 深圳光启高等理工研究院 | SD (secure digital) card and radio frequency identification system thereof |
| CN103679250A (en) * | 2012-08-31 | 2014-03-26 | Nxp股份有限公司 | Interface arbitration for wired tag |
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2008
- 2008-07-07 CN CN2008101162281A patent/CN101315660B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622635A (en) * | 2011-01-27 | 2012-08-01 | 中国移动通信集团公司 | Dual interface SIM card and non-contact communication method |
| CN102810175A (en) * | 2011-06-24 | 2012-12-05 | 深圳光启高等理工研究院 | SD (secure digital) card and radio frequency identification system thereof |
| CN102810175B (en) * | 2011-06-24 | 2015-11-04 | 深圳光启高等理工研究院 | A kind of SD card and radio-frequency recognition system thereof |
| CN102254137A (en) * | 2011-07-15 | 2011-11-23 | 北京握奇数据系统有限公司 | Dual-interface smart card and data communication method thereof |
| CN102799393A (en) * | 2012-06-27 | 2012-11-28 | 大唐微电子技术有限公司 | Method and device for working condition management on dual-interface smart card chip |
| CN102799393B (en) * | 2012-06-27 | 2015-09-30 | 大唐微电子技术有限公司 | Double interface intelligent card chip working state administration method and apparatus |
| CN103679250A (en) * | 2012-08-31 | 2014-03-26 | Nxp股份有限公司 | Interface arbitration for wired tag |
| US9514067B2 (en) | 2012-08-31 | 2016-12-06 | Nxp B.V. | Interface arbitration for a wired tag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101315660B (en) | 2010-09-08 |
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