KR20110125758A - Data storing device for near field communication - Google Patents
Data storing device for near field communication Download PDFInfo
- Publication number
- KR20110125758A KR20110125758A KR1020100045295A KR20100045295A KR20110125758A KR 20110125758 A KR20110125758 A KR 20110125758A KR 1020100045295 A KR1020100045295 A KR 1020100045295A KR 20100045295 A KR20100045295 A KR 20100045295A KR 20110125758 A KR20110125758 A KR 20110125758A
- Authority
- KR
- South Korea
- Prior art keywords
- nfc
- contact
- storage device
- data storage
- interface
- Prior art date
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06K19/0723—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 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
Abstract
Description
BACKGROUND OF THE
Near Field Communication (NFC) technology is a kind of contactless short-range wireless communication technology that can transmit data at low power in a short distance by using RFID technology using a frequency of 13.56 MHz band, proposed by the NFC Forum. Using the NFC protocol. With NFC communication technology, when two or more terminals are brought close together without the user's artificial manipulation, various contents data as well as authentication data can be exchanged.
On the other hand, the third generation mobile communication terminal must be equipped with a USIM card to be authenticated, and payment through NFC and NFC technology is possible. Since data can be transmitted and received, the USIM card and the NFC communication apparatus must exist in the mobile communication terminal for authentication and data transmission and reception using the mobile communication terminal.
However, most older mobile communication terminals are not able to attach such USIM cards, and even in the latest mobile communication terminals, the USIM card can be attached but the NFC communication device is not built in many times. In order to make payment through authentication data and to transmit / receive various contents data in the USIM card with other terminals, it is possible to attach a USIM card and purchase a new mobile communication terminal with a built-in NFC communication device.
In order to solve the problems of the conventional mobile communication terminal, an embodiment in which the
However, in the prior art as shown in FIG. 6, since the integrated
An object of the present invention is to provide a data storage device that provides a short range wireless communication function such as NFC to a specific electronic device while being inserted into a slot of a specific electronic device.
A data storage device according to an aspect of the present invention includes a memory card interface for performing data input and output according to a predetermined memory card protocol; An NFC interface for performing short range wireless communication according to a predetermined RF communication protocol according to a signal applied to the memory card interface; And a storage unit which stores data input through the memory card interface.
Herein, the NFC interface selects one of a passive mode (Card Emulation mode), an active mode (Reader / Writer mode), and a peer-to-peer mode according to a signal applied to the memory card interface. And, in the selected mode, it is possible to perform short-range wireless communication according to the NFC protocol.
The data storage device may further include a security module that can be accessed through a predetermined authentication process through the NFC interface.
Here, the data storage device may further comprise a protocol conversion unit for converting a signal applied to the memory card interface into an NFC control signal and transferring it to the NFC interface.
Here, the protocol conversion unit, a control file storage unit for storing a file input through the memory card interface; And an NFC control signal generator for analyzing the file stored in the control file storage to generate the NFC control signal.
The control file storage unit may be a partial region of the storage unit.
The protocol conversion unit may further include an NFC response unit for storing a response to performing an NFC operation in the control file storage unit.
Here, the data storage device may have a form of conductor strips arranged in a line, and may further include a memory card slot contact portion connecting an external memory card slot to the memory card interface.
Here, the data storage device has a form of a pair of conductor strips, and further comprises an RF antenna contact portion connecting the external RF antenna and the NFC interface, or has a form of a conductor strip, the external RF Transmitting and receiving a signal, and may further comprise an RF strip antenna connected to the NFC interface.
The data storage device may include a contact interface for performing data communication according to a predetermined contact IC protocol; And a contact pad having six conductor strip shapes and connecting an external contact IC slot to the contact interface.
The contact interface may receive identification information or an encryption key of the data storage device and record the identification information or an encryption key in the security module or the storage unit.
According to another aspect of the present invention, a data storage device includes a case having a rectangular plate-like shape; A memory card slot contact portion having a form of conductor strips arranged in a line near one side of one surface of the case and being in contact with an external memory card slot; A contact pad having a shape of six conductor strips formed on one surface of the case and capable of contacting an external contact IC slot; An RF antenna contact having a form of a pair of conductor strips formed on one side or the other side of the case and connected to an external RF antenna; And an internal circuit block mounted in the case and storing information obtained by processing signals input to the memory card slot contact, the contact pad, and the RF antenna contact.
The data storage device may further include a conversion case having an external shape of the USIM and having a groove into which the case may be inserted.
According to another aspect of the present invention, a data storage device includes a case having a rectangular plate-like shape; A memory card slot contact portion having a form of conductor strips arranged in a line near one side of one surface of the case and being in contact with an external memory card slot; A contact pad having a shape of six conductor strips formed on one surface of the case and capable of contacting an external contact IC slot; An RF strip antenna positioned at an opposite side of the memory card slot contact portion of the case to transmit and receive an RF signal for NFC wireless communication; And an internal circuit block mounted in the case and storing information obtained by processing signals input to the memory card slot contact, the contact pad, and the RF strip antenna.
The data storage device may further include a conversion case having an external shape of the USIM and having a groove into which the case may be inserted.
The data storage device of the present invention according to the above configuration has an advantage of easily providing a short range wireless communication function to the specific electronic device by inserting it into a memory card slot or the like of a specific electronic device.
1 is a block diagram illustrating a detailed configuration of a data storage device that may be implemented as an SD card type according to an embodiment of the present invention.
FIG. 2 is a conceptual diagram illustrating an example of a detailed configuration of the protocol converter of FIG. 1 and a software hierarchy of an external device corresponding thereto; FIG.
3 is a plan view showing the external appearance of the data storage device according to an embodiment of the present invention;
4 is a conceptual diagram illustrating a shape in which the data storage device of FIG. 3 is coupled to a conversion case so as to be used as a USIM card.
5A and 5B are a plan view and a rear view of an external view of a data storage device according to another embodiment of the present invention.
Figure 6 is a block diagram showing a battery pack for giving the NFC function to the mobile phone according to the prior art.
1 illustrates a detailed configuration of a data storage device that may be implemented as an SD card type according to an embodiment of the present invention.
The illustrated
The
The
The
The
The
The
The
At the present time, the key to implementing NFC devices is a dedicated IC called an NFC chip. The NFC chip, sometimes called the NFC controller or NFC router, is being developed and marketed by several companies.
In order for the
In NFC, when two devices to communicate with each other enter an operating volume, the intention to communicate with each other is assumed, and a communication procedure is started. This concept maximizes user convenience.
NFC devices usually operate in three modes. One is a reader / writer mode in which the device acts as a terminal, the other is a peer-to-peer mode in which the device exchanges data with each other, and a passive device in which the device behaves like a contactless card. Mode (Card Emulation mode).
Active mode allows NFC devices to read cards, tags, and smart posters, and P2P mode to send and receive large amounts of data such as business cards and digital content with other NFC devices. Finally, it is possible to make a payment by touching a card terminal with a NFC-enabled mobile phone using the manual mode.
The
The
To this end, the illustrated
Meanwhile, the
The
However, the current situation of dissemination of a terminal for a contact IC card is not good, so the
2 illustrates an example of a detailed configuration of the
The SD protocol is for recording data in a relatively large memory, and the
In this embodiment, a specific area of the storage space allocated to the
In the illustrated embodiment, the control
In another implementation, the control
Meanwhile, in another implementation, the
The external device 1000 (for example, mobile phone or PC) connected to the
The NFC
The above description will be specifically described as an operation when the data storage device according to the spirit of the present invention is mounted in the micro SD card slot of the mobile phone as the
A user of the mobile phone wants to transmit an image stored in another mobile phone using the PtoP function of NFC. That is, the
Next, when the NFC control
The
The
According to the above-described process, the
Here, according to the storage location of the image to be transmitted, the form of sending information on the image to be transmitted may be one of the following three types.
First, when the image to be transmitted is stored in an area directly accessible by the
Second, when the image to be transmitted is stored in an area where the
In the above descriptions, the area in which the NFC command file is stored in the control
3 illustrates the appearance of an embodiment of a data storage device according to the spirit of the present invention.
The illustrated data storage device 100-1 includes a
Here, the
The
The micro SD card
The illustrated micro SD card
The illustrated RF antenna contact has a form of a pair of conductor strips as1 and as2, and is a physical structure that connects an external RF antenna to an NFC interface in the
The illustrated contact pad has the form of six conductor strips cs1 to cs6, and is a physical structure that connects an external contact IC slot with a contact IC interface in the
The contact pad of
First, the USIM will be briefly described. A subscriber identify module (SIM) card is a form of use of a smart card defined as above, and is a smart card for authentication of a terminal user mounted on a mobile communication terminal, and provides various services such as billing and security functions. Can provide. Here, the subscriber identity module (SIM) card is started in Europe adopting the Global System for Mobile communication (GSM) scheme, while the code division multiple access (CDMA) camp proposes a functionally identical smart card. The term UIM (user identify module) is used to distinguish it from the SIM. In addition, USIM (user subscriber identify)
module) is a more extended term that accepts both SIM and UIM. As ITU-2000's IMT-2000 radio access standard is approved in synchronous and asynchronous manner, it is now possible to implement roaming using different radio access standards. As a practical method, the USIM standard for user authentication is actively being promoted. In this specification, SIM uses USIM, a term that can collectively refer to UIM.
The data storage device 100-1 of this embodiment corresponds to the position of six contacts in use of the contact pad of the
The contact pad provided in the data storage device 100-1 of this embodiment may have a purpose for use as a contact smart card, and may also have a purpose for use as a USIM card which is widely used at present. have. However, since the micro SD card and the USIM card differ in appearance, they can use a kind of adapter case without being used as it is.
FIG. 4 illustrates a shape in which the data storage device 100-1 of FIG. 3 is coupled to the
Compared to the six conductor strips cs1 to cs6 constituting the contact pad of the data storage device and the contact pad 2100 of the
The data storage device 100-1 coupled to the
The issuer of the USIM card according to the prior art, which has been widely spread, performs an issuing task by using a contact card method of the
That is, when the data storage device 100-1 shown in FIGS. 3 and 4 is inserted into a micro SD card slot of an electronic device (eg, a mobile phone) without an NFC interface, the data storage device 100-1 may support the NFC function. While effective, there is an advantage that can be issued at a low cost by using the issuer of the USIM card according to the prior art.
For example, the data storage device 100-1 shown in FIGS. 3 and 4 may be used to provide an NFC function to the mobile phone by being inserted into a micro SD card slot of the mobile phone. In this case, the mobile phone does not need to implement hardware for the NFC function, but the
Since the
However, the data storage device according to the embodiment shown in FIG. 3 requires a mobile phone equipped with a loop antenna for RF communication, which acts as a limitation in granting an NFC function to a mobile phone without a conventional NFC function.
The data storage device 100-2 according to another embodiment illustrated in FIGS. 5A and 5B may provide an NFC function to all mobile phones in which a micro SD slot exists and in which additional applications can be installed.
The illustrated data storage device 100-2 includes a
The data storage device 100-2 of FIG. 5 is also coupled to the
Components other than the RF strip antenna SA are similar to those of FIG. 3, and thus detailed descriptions thereof will be omitted.
A general micro SD card is inserted into a micro SD card slot of an external device by a user pushing the opposite side of the micro SD card slot contact. As a result, the opposite side of the micro SD card slot contact portion is often exposed from the micro SD card slot of the external device. In this embodiment, the RF strip antenna SA is formed on the opposite side of the micro SD card slot contact, thereby improving transmission and reception sensitivity of the RF strip antenna SA.
The RF strip antenna SA may be manufactured in a shape having high transmission and reception sensitivity in a frequency band (for example, 13.56 MHz) for NFC communication.
It should be noted that the above embodiment is for the purpose of illustration and not for the purpose of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.
100: data storage device 120: SD card slot contact
140: RF antenna 160: contact pad
200: internal circuit block 210: SD card interface
220: NFC interface 230: storage unit
240: security module 260: protocol conversion unit
Claims (15)
An NFC interface for performing short range wireless communication according to a predetermined RF communication protocol according to a signal applied to the memory card interface; And
A storage unit for storing data input through the memory card interface
Data storage device comprising a.
The NFC interface,
And selecting one of a passive mode, an active mode, and a PtoP mode according to a signal applied to the memory card interface, and performing short-range wireless communication according to NFC protocol in the selected mode.
Security module that can be accessed through a predetermined authentication process through the NFC interface
Data storage device further comprising.
Protocol conversion unit for converting the signal applied to the memory card interface to the NFC control signal to transfer to the NFC interface
Data storage device further comprising.
The protocol conversion unit,
A control file storage unit for storing a file input through the memory card interface; And
NFC control signal generation unit for generating the NFC control signal by analyzing the file stored in the control file storage unit
Data storage device comprising a.
The control file storage unit,
The data storage device is a partial area of the storage unit.
The protocol conversion unit,
NFC response unit for storing a response to the NFC operation to the control file storage unit
Data storage device further comprising.
Memory card slot contacts that have the form of conductor strips arranged in a line and connect an external memory card slot with the memory card interface
Data storage device further comprising.
RF antenna contacts having a pair of conductor strips and connecting an external RF antenna to the NFC interface
Data storage device further comprising.
An RF strip antenna having a conductor strip shape, transmitting and receiving an external RF signal, and connected to the NFC interface.
Data storage device further comprising.
A contact interface for performing data communication in accordance with a predetermined contact IC protocol; And
Contact pads in the form of six conductor strips that connect an external contact IC slot to the contact interface
Data storage device further comprising.
The contact interface,
And receiving identification information or an encryption key of the data storage device and writing the identification information or the encryption key to the security module or the storage unit.
A memory card slot contact portion having a form of conductor strips arranged in a line near one side of one surface of the case and being in contact with an external memory card slot;
A contact pad having a shape of six conductor strips formed on one surface of the case and capable of contacting an external contact IC slot;
An RF antenna contact having a form of a pair of conductor strips formed on one side or the other side of the case and connected to an external RF antenna; And
An internal circuit block mounted inside the case and storing information obtained by processing signals input to the memory card slot contact, the contact pad, and the RF antenna contact;
Data storage device comprising a.
A memory card slot contact portion having a form of conductor strips arranged in a line near one side of one surface of the case and being in contact with an external memory card slot;
A contact pad having a shape of six conductor strips formed on one surface of the case and capable of contacting an external contact IC slot;
An RF strip antenna positioned at an opposite side of the memory card slot contact portion of the case to transmit and receive an RF signal for NFC wireless communication; And
An internal circuit block mounted inside the case and storing information obtained by processing signals input to the memory card slot contact, a contact pad, and an RF strip antenna
Data storage device comprising a.
Conversion case having a contour of the USIM and having a groove into which the case can be fitted
Data storage device further comprising.
Priority Applications (1)
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KR1020100045295A KR20110125758A (en) | 2010-05-14 | 2010-05-14 | Data storing device for near field communication |
Applications Claiming Priority (1)
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KR1020100045295A KR20110125758A (en) | 2010-05-14 | 2010-05-14 | Data storing device for near field communication |
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KR1020100045295A KR20110125758A (en) | 2010-05-14 | 2010-05-14 | Data storing device for near field communication |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160139511A (en) | 2015-05-28 | 2016-12-07 | 권순원 | Smart phone memory cover |
KR102072676B1 (en) * | 2018-10-08 | 2020-02-03 | 이현우 | Smart phone case with card and music album with video and music |
US11452206B2 (en) | 2020-01-07 | 2022-09-20 | Samsung Electronics Co., Ltd. | Card-type solid state drive |
-
2010
- 2010-05-14 KR KR1020100045295A patent/KR20110125758A/en not_active Application Discontinuation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160139511A (en) | 2015-05-28 | 2016-12-07 | 권순원 | Smart phone memory cover |
KR102072676B1 (en) * | 2018-10-08 | 2020-02-03 | 이현우 | Smart phone case with card and music album with video and music |
US11452206B2 (en) | 2020-01-07 | 2022-09-20 | Samsung Electronics Co., Ltd. | Card-type solid state drive |
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