CN106203574A - A kind of smart card and write card mode - Google Patents
A kind of smart card and write card mode Download PDFInfo
- Publication number
- CN106203574A CN106203574A CN201610475985.2A CN201610475985A CN106203574A CN 106203574 A CN106203574 A CN 106203574A CN 201610475985 A CN201610475985 A CN 201610475985A CN 106203574 A CN106203574 A CN 106203574A
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- microprocessor
- contact
- functional chip
- interface module
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0716—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising a sensor or an interface to a sensor
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
- G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
- G06K1/128—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by electric registration, e.g. electrolytic, spark erosion
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Credit Cards Or The Like (AREA)
Abstract
The application provides a kind of smart card and writes card mode, relates to technical field of intelligent card, solves the technical problem that smart card communications speed is low and communication stability is poor.This smart card includes card interface module, microprocessor and functional chip, card interface module includes first group of contact and second group of contact, microprocessor includes first group of signal end and second group of signal end: wherein, first group of contact of card interface module is connected with first group of signal end of microprocessor, second group of signal end of microprocessor is connected with each signal end of functional chip, second group of contact of card interface module is connected with each signal end of functional chip, and is connected with second group of signal end of microprocessor.This invention is used for improving smart card communications speed and communication stability.
Description
Technical field
The application relates to technical field of intelligent card, particularly a kind of smart card and write card mode.
Background technology
Not only there is due to smart card preferable information processing capability, also have that volume is little and portable advantage, from
And it is widely applied in information security field.Generally, smart card includes card interface module, MCU (Micro
Controller Unite, microprocessor), and functional chip (such as, there is RF function or security function).
In the smart card with said structure, MCU is responsible for communicating with outside, and configures functional chip.
In prior art, as follows to the configuration process of functional chip: card reader and card interface module communication, card interface module is led to MCU
Letter, MCU and functional chip communication, and then realize the configuration to functional chip.
From the above, in prior art, the configuration process of functional chip is loaded down with trivial details, so cause traffic rate low and
Communication stability is poor.
Summary of the invention
It is an object of the invention to provide a kind of smart card, it is possible to increase communication news speed and communication stability.
For reaching above-mentioned purpose, the present invention provides a kind of smart card, adopts the following technical scheme that
This smart card includes card interface module, microprocessor and functional chip, and wherein card interface module includes that first group is touched
Point and second group of contact, microprocessor includes first group of signal end and second group of signal end；Further, the of card interface module
One group of contact is connected with first group of signal end of microprocessor, and second group of signal end of microprocessor is believed with each of functional chip
Number end connects, and second group of contact of card interface module is connected with each signal end of functional chip, and with second group of microprocessor
Signal end connects.
Wherein, card interface module includes contact C1～C8, and wherein, contact C4, C6 and C8 are second group of contact, with function core
Each signal end of sheet connects so that being SPI interface between card interface module and functional chip, contact C4, C6 and C8 also with micro-place
Second group of signal end of reason device connects, so that being SPI interface between card interface module and microprocessor, and contact C1, C2, C3, C5
Being first group of contact with C7, being connected with first group of signal end of microprocessor, so that between microprocessor and card interface module being
7816 interfaces.
Described functional chip also includes memorizer, is used for storing different types of data and application software.
Described microprocessor also includes CPU and internal memory, for controlling the read-write of card interface module；Calling function chip is deposited
The data of storage；And the application software stored on operation function chip.
Preferably, described card interface module also includes receiving FIFO (First In First Out, first in first out) caching
District and transmission FIFO buffer area, wherein: receive FIFO buffer area for receiving data from microprocessor and/or functional chip；Send out
Send FIFO buffer area for microprocessor and/or functional chip will be sent to from the external data of external reception.
Preferably, described card interface module also includes that receiving terminal arranges depositor and transmitting terminal arranges depositor, wherein: connect
Receiving end arranges depositor for the address receiving FIFO buffer area is mapped to microprocessor and/or functional chip；Transmitting terminal sets
Put depositor for the address sending FIFO buffer area is mapped to described microprocessor and/or functional chip.
The smart card that the present invention provides has structure as above, so that between card interface module and functional chip
Can directly communicate, and then have only to make card reader and card interface module communication, and card interface module is led to functional chip
Letter, can complete the configuration to functional chip, and then can be effectively improved traffic rate and communication stability.
The application also provides for a kind of writing smart card mode, adopts the following technical scheme that
This writing smart card mode is applied to the smart card with structure described above, and this writing smart card mode includes:
By the interface between card interface module and functional chip, functional chip is directly configured.
Further, described writing smart card mode includes especially by card interface module contact C4, C6 and C8 and merit
SPI interface between energy chip, directly configures functional chip.
Preferably, described writing smart card mode also includes: contact C4, C6 and C8 of being included by card interface module are with micro-
SPI interface between processor, carries out COS system loads to microprocessor.
Preferably, described writing smart card mode also includes: by the signal pair on the contact C2 that card interface module includes
7816 or SPI interface between card interface module and functional chip or microprocessor carries out Selection and call, wherein, on the C2 of contact
When signal is high level, 7816 interfaces are carried out Selection and call, when the signal on the C2 of contact is low level, SPI interface is carried out
Selection and call；Or, when the signal on the C2 of contact is low level, 7816 interfaces are carried out Selection and call, the signal on the C2 of contact
During for high level, SPI interface is carried out Selection and call.
Preferably, described writing smart card mode also includes: receive FIFO buffer area from microprocessor and/or functional chip
Receive data；Send FIFO buffer area and will be sent to microprocessor and/or functional chip from the external data of external reception.
Preferably, described writing smart card mode also includes: receiving terminal arranges depositor and will receive the ground of FIFO buffer area
Location is mapped to microprocessor and/or functional chip；Transmitting terminal arranges depositor and is mapped to micro-by the address sending FIFO buffer area
Processor and/or functional chip.
In the writing smart card mode that the present invention provides, can directly lead between card interface module and functional chip
Letter, and then have only to make card reader and card interface module communication, and card interface module and functional chip communication, can complete merit
The configuration of energy chip, and then traffic rate and communication stability can be effectively improved.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments described in application, for those of ordinary skill in the art, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structure chart of smart card；
Fig. 2 is smartcard internal communication link map interlinking；
Fig. 3 is SPI interface communication sequential chart；
Fig. 4 is the flow chart directly configured functional chip by SPI interface；
Fig. 5 is the flow chart that microprocessor is carried out COS system loads by SPI interface；
Fig. 6 be smart card write card mode flow chart.
Description of reference numerals:
1-smart card；2-microprocessor；3-functional chip；4-card interface module；5-7816 interface；6-SPI interface；7-number
According to output point；8-data acquisition sampling point；First group of contact of 501-；601-refers to second group of contact；First group of signal end of 201-；202-
Two groups of signal ends；301-functional chip signal end；The memorizer of 302-functional chip；203-internal memory；204-CPU；602-receives
Depositor is set；603-sends and arranges depositor；604-receives FIFO buffer area；605-sends FIFO buffer area；401-SSEL
(device selection line)；402-SCLK (clock line)；403-MOSI (output signal line)；404-MISO (input signal cable).
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is a part of embodiment of the present invention rather than whole embodiments wholely.Based on this
Embodiment in bright, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into the scope of protection of the invention.
Embodiments provide a kind of smart card, as it is shown in figure 1, this smart card 1 includes microprocessor 2, function core
Sheet 3 and card interface module 4, wherein card interface module 4 includes first group of contact 501 and second group of contact 601, and microprocessor 2 wraps
Include first group of signal end 201 and second group of signal end 201；Further, first group of contact 501 and Wei Chu of card interface module 4
First group of signal end 201 of reason device 2 connects, and second group of signal end 202 of microprocessor 2 is with each signal end of functional chip 3 even
Connecing 301, second group of contact 601 of card interface module 4 is connected with each signal end 301 of functional chip 3, and with microprocessor 2
Second group of signal end 202 connects.
Exemplarily, smart card can be that financial IC card, health card, mobile payment card, ETC are quickly through card and public
Transportation cards etc. can meet the IC-card of a certain functional management, wherein, when smart card be ETC quickly through card time, comprise car owner in card
Information and supplement remaining sum etc. with money, user only needs to drive slowly, when vehicle arrives soon toll station window, ETC card reader and user
ETC in car carries out radio communication quickly through card, and bar of blocking the way while system deduction enforcement travelling expenses lifts, directly by i.e.
Can.Those skilled in the art can select according to actual needs, and this is not defined by the present embodiment.
Specifically, as in figure 2 it is shown, card interface module 4 includes contact C1～C8, wherein, contact C4, C6 and C8 are second group
Contact 601, contact of the prior art C4, C6 and C8 are RFU (Reserved for Further Use) contact, in the future
Function Extension and design, the present invention just contact C4, C6 and C8 have been carried out extension be used, make contact C4, C6 and C8 with
Each signal end 301 of functional chip 3 connects, so that being SPI interface 6 between card interface module 4 and functional chip 3, and then improves
The communication stability of smart card；Contact C4, C6 and C8 are also connected with second group of signal end 202 of microprocessor 2, so that clamping
It is SPI interface 6 between mouth die block 4 and microprocessor 2, and then improves the communication speed of smart card；Contact C1, C2, C3, C5 and
C7 is first group of contact 501, is connected with first group of signal end 201 of microprocessor 2, so that microprocessor 2 and card interface module 4
Between be 7816 interfaces 5.
Further, by the signal on the C2 of contact between card interface module 4 and functional chip 3 or microprocessor 2
7816 or SPI interface carry out Selection and call, wherein, when the signal on the C2 of contact is high level, 7816 interfaces are carried out select adjust
With, when the signal on the C2 of contact is low level, SPI interface is carried out Selection and call；Or, the signal on the C2 of contact is low level
Time, 7816 interfaces are carried out Selection and call, when the signal on the C2 of contact is high level, SPI interface is carried out Selection and call.
Wherein, the SPI interface 6 described in the present embodiment is a kind of high speed, full duplex, synchronous communication bus, according to Fig. 2, expands
It is SSEL (device selection line) 401, SCLK (clock line) 402, MOSI (output respectively that exhibition realizes four holding wires of SPI interface
Holding wire) 403 and MISO (input signal cables) 404, wherein, SSEL: enable signal, if being low electricity from equipment from the choosing of equipment sheet
If flat enable, after dragging down this pin, will be selected from equipment, main frame and this selected communicating from machine；
SCLK: clock signal；MOSI: main frame is given and is sent instruction or the passage of data from machine；MISO: main frame read from the state of machine or
The passage of person's data.
Concrete, Fig. 3 is SPI interface communication succession figure, after CPOL=1 represents when data do not send and is sent,
SLCK is high level, carries out data input when SLCK first is along 7, MOSI and MISO can change, when to SLCK
Two along 8 time be read out data.
Further, functional chip 3 also includes memorizer 302, is used for storing different types of data and application algorithm.Can
Selection of land, storage content includes the algorithm verifying card reader authority, the key being verified, card number and data field etc..Exemplarily,
Data field includes again preserving remaining sum, applying for card the date, user information etc..
Further, microprocessor 2 also includes CPU204 and internal memory 203, and wherein, internal memory 203 is used for storing COS and instructs generation
Intermediate data in code and calculating process；When smart card 1 performs read-write operation, CPU loads outside COS system command, and response
The instruction that card is sent by boundary's equipment.Exemplarily, calculate including checking, read and write data, Card Reader number, write key, lock number
According to district, the relevant setting of illegal operation auto-destruct card, the operation of checking card reader authority etc..
Preferably, card interface module 4 also includes receiving FIFO buffer area 604 and sending FIFO buffer area 605, wherein, connects
Receive FIFO buffer area 604 for receiving the data of transmission from microprocessor 2 or functional chip 3；Send FIFO buffer area 605 to use
In the external data received from card interface module 4 being sent to microprocessor 2 or functional chip 3.
Further, card interface module 4 also includes that receiving terminal arranges depositor and transmitting terminal arranges depositor, wherein, connects
Receive and depositor is set for the address receiving FIFO buffer area is mapped to microprocessor 2 and the address space of functional chip 3；Send out
Send arrange depositor for by send FIFO buffer area address be mapped to microprocessor 2 and the address space of functional chip 3, should
By the way of address maps, make CPU that data fifo buffer in be can be used directly, be not required to carry out the operation of data-moving,
In making smart card 1, data transmission bauds is fast, efficiently with flexible.
It addition, the embodiment of the present invention also provides for a kind of writing smart card mode, this writing smart card mode is applied to be had
The smart card of structure described above, this writing smart card mode includes: by the interface between card interface module and functional chip,
Functional chip is directly configured.
Wherein, contact C4, C6 and C8 that described writing smart card mode includes especially by card interface module and function core
SPI interface between sheet, directly configures functional chip, and as shown in Figure 4, above-mentioned steps specifically includes:
Smart card, near smart card, is powered up by step S301, card reader；
Step S302, by setting up SPI interface communication between contact C2 selection card interface module and functional chip；
Step S303, when SPI enables, functional module directly receives configuration information by input signal cable；
Step S304, functional module pass through output signal line synchronism output confirmation；
Step S305, until data end of transmission, SPI goes to enable.
By above step it can be seen that can directly communicate between card interface module and functional chip, and then only need
Card reader to be made and card interface module communication, and card interface module and functional chip communication, can complete to join functional chip
Put, and then traffic rate and communication stability can be effectively improved.
Preferably, described writing smart card mode also includes: contact C4, C6 and C8 of being included by card interface module are with micro-
SPI interface between processor, carries out COS system loads to microprocessor, as it is shown in figure 5, above-mentioned steps specifically includes:
Smart card, near smart card, is powered up by step S201, card reader；
Step S202, by setting up SPI interface communication between contact C2 selection card interface module and microprocessor；
Step S203, when SPI enables, CPU pass through input signal cable, load COS instruction, response external card reader is to it
The instruction sent；
Step S204, microprocessor pass through output signal line synchronism output result；
Step S205, until data end of transmission, SPI goes to enable.
Preferably, described writing smart card mode also includes: by the signal pair on the contact C2 that card interface module includes
7816 or SPI interface between card interface module and functional chip or microprocessor carries out Selection and call, wherein, on the C2 of contact
When signal is high level, 7816 interfaces are carried out Selection and call, when the signal on the C2 of contact is low level, SPI interface is carried out
Selection and call；Or, when the signal on the C2 of contact is low level, 7816 interfaces are carried out Selection and call, the signal on the C2 of contact
During for high level, SPI interface is carried out Selection and call.
Preferably, described writing smart card mode also includes: receive FIFO buffer area from microprocessor and/or function core
Sheet receives data；Send FIFO buffer area and will be sent to microprocessor and/or functional chip from the external data of external reception.
Preferably, described writing smart card mode also includes: receiving terminal arranges depositor and will receive the ground of FIFO buffer area
Location is mapped to microprocessor and/or functional chip；Transmitting terminal arranges depositor and is mapped to micro-by the address sending FIFO buffer area
Processor and/or functional chip.
Exemplarily, as shown in Figure 6, the smart card receiving FIFO buffer area with sending FIFO buffer area it is provided with as mentioned above
Card mode of writing include:
Step S1, card reader are communicated with SPI interface foundation by contact or cordless；
Step S2, the data of card reader end are temporarily stored in transmission FIFO buffer area；
Step S3, send and depositor is set the address sending FIFO buffer area is mapped to the internal memory of described microprocessor
Address space；
Step S4, CPU directly access the external data sending FIFO buffer area by ground mapping address；
Step S5, receive and depositor is set the address receiving FIFO buffer area is mapped to the internal memory of described microprocessor
Address space；
Step S6, reception FIFO buffer area directly receive CPU operational data by mapping address.
Although having been described for the preferred embodiment of the application, but those skilled in the art once know basic creation
Property concept, then can make other change and amendment to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into all changes and the amendment of the application scope.Obviously, those skilled in the art can be to the application
Carry out various change and modification without deviating from spirit and scope.So, if these of the application are revised and modification
Belong within the scope of the application claim and equivalent technologies thereof, then the application is also intended to comprise these changes and modification exists
In.
Claims (10)
1. a smart card, it is characterised in that: including card interface module, microprocessor and functional chip, card interface module includes
First group of contact and second group of contact, microprocessor includes first group of signal end and second group of signal end；Wherein, card interface module
First group of contact be connected with first group of signal end of microprocessor, second group of signal end of microprocessor is each with functional chip
Signal end connect, second group of contact of card interface module is connected with each signal end of functional chip, and with the second of microprocessor
Group signal end connects.
2. smart card as claimed in claim 1, it is characterised in that: card interface module includes contact C1～C8, wherein, contact
C4, C6 and C8 are second group of contact, are connected with each signal end of functional chip, so that between card interface module and functional chip being
SPI interface, contact C4, C6 and C8 are also connected with second group of signal end of microprocessor, so that card interface module and microprocessor
Between be SPI interface, contact C1, C2, C3, C5 and C7 are first group of contact, are connected with first group of signal end of microprocessor, with
Make to be 7816 interfaces between microprocessor and card interface module.
3. the smart card as described in any one of claim 1～2, it is characterised in that: described card interface module also includes receiving
FIFO buffer area and transmission FIFO buffer area, wherein:
Receive FIFO buffer area for receiving data from microprocessor and/or functional chip；
Send FIFO buffer area for microprocessor and/or functional chip will be sent to from the external data of external reception.
4. smart card as claimed in claim 3, it is characterised in that: described card interface module also includes that receiving terminal arranges depositor
Depositor is set with transmitting terminal, wherein:
Receiving terminal arranges depositor for the address receiving FIFO buffer area is mapped to microprocessor and/or functional chip；
Transmitting terminal arranges depositor for the address sending FIFO buffer area is mapped to microprocessor and/or functional chip.
5. a writing smart card mode, it is characterised in that: application smart card as described in any one of Claims 1 to 4, described
Writing smart card mode includes:
By the interface between card interface module and functional chip, functional chip is directly configured.
6. writing smart card mode as claimed in claim 5, it is characterised in that: the contact C4 that included by card interface module,
SPI interface between C6 and C8 and functional chip, directly configures functional chip.
7. writing smart card mode as claimed in claim 5, it is characterised in that: also include: included by card interface module
SPI interface between contact C4, C6 and C8 and microprocessor, carries out COS system loads to microprocessor.
8. writing smart card mode as claimed in claim 5, it is characterised in that: also include: included by card interface module
Between card interface module and functional chip or microprocessor 7816 or SPI interface are carried out selecting to adjust by the signal on the C2 of contact
With, wherein, when the signal on the C2 of contact is high level, 7816 interfaces being carried out Selection and call, the signal on the C2 of contact is low electricity
At ordinary times, SPI interface is carried out Selection and call；Or, when the signal on the C2 of contact is low level, carry out 7816 interfaces selecting to adjust
With, when the signal on the C2 of contact is high level, SPI interface is carried out Selection and call.
9. writing smart card mode as claimed in claim 5, it is characterised in that: also include:
Receive FIFO buffer area and receive data from microprocessor and/or functional chip；
Send FIFO buffer area and will be sent to microprocessor and/or functional chip from the external data of external reception.
10. writing smart card mode as claimed in claim 9, it is characterised in that: also include:
Receiving terminal arranges depositor and the address receiving FIFO buffer area is mapped to microprocessor and/or functional chip；
Transmitting terminal arranges depositor and the address sending FIFO buffer area is mapped to microprocessor and/or functional chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610475985.2A CN106203574B (en) | 2016-06-24 | 2016-06-24 | A kind of smart card and its write card mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610475985.2A CN106203574B (en) | 2016-06-24 | 2016-06-24 | A kind of smart card and its write card mode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106203574A true CN106203574A (en) | 2016-12-07 |
| CN106203574B CN106203574B (en) | 2019-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610475985.2A Active CN106203574B (en) | 2016-06-24 | 2016-06-24 | A kind of smart card and its write card mode |
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| Country | Link |
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| CN (1) | CN106203574B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107315975A (en) * | 2017-06-01 | 2017-11-03 | 华南理工大学 | Principal and subordinate's cooperative control system and method in a kind of large-scale card maker of IC-card |
| CN109726605A (en) * | 2018-12-27 | 2019-05-07 | 恒宝股份有限公司 | A kind of eSIM smart card and its working method |
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| CN1873634A (en) * | 2005-06-01 | 2006-12-06 | 上海奇码数字信息有限公司 | Card controller, and method for controlling IC card |
| CN101004798A (en) * | 2006-12-30 | 2007-07-25 | 凤凰微电子（中国）有限公司 | Smart card of supporting high performance computing, large capacity storage, high-speed transmission, and new type application |
| US20080320187A1 (en) * | 2006-02-17 | 2008-12-25 | Ktfreetel Co.,Ltd. | Ic card, terminal with ic card and initializing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1873634A (en) * | 2005-06-01 | 2006-12-06 | 上海奇码数字信息有限公司 | Card controller, and method for controlling IC card |
| US20080320187A1 (en) * | 2006-02-17 | 2008-12-25 | Ktfreetel Co.,Ltd. | Ic card, terminal with ic card and initializing method thereof |
| CN101004798A (en) * | 2006-12-30 | 2007-07-25 | 凤凰微电子（中国）有限公司 | Smart card of supporting high performance computing, large capacity storage, high-speed transmission, and new type application |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107315975A (en) * | 2017-06-01 | 2017-11-03 | 华南理工大学 | Principal and subordinate's cooperative control system and method in a kind of large-scale card maker of IC-card |
| CN107315975B (en) * | 2017-06-01 | 2019-08-20 | 华南理工大学 | Principal and subordinate's cooperative control system and method in a kind of IC card large size card maker |
| CN109726605A (en) * | 2018-12-27 | 2019-05-07 | 恒宝股份有限公司 | A kind of eSIM smart card and its working method |
| CN109726605B (en) * | 2018-12-27 | 2022-06-10 | 恒宝股份有限公司 | eSIM intelligent card and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106203574B (en) | 2019-05-24 |
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