KR20160074214A - RFID reader for smart cards - Google Patents

RFID reader for smart cards Download PDF

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Publication number
KR20160074214A
KR20160074214A KR1020140183250A KR20140183250A KR20160074214A KR 20160074214 A KR20160074214 A KR 20160074214A KR 1020140183250 A KR1020140183250 A KR 1020140183250A KR 20140183250 A KR20140183250 A KR 20140183250A KR 20160074214 A KR20160074214 A KR 20160074214A
Authority
KR
South Korea
Prior art keywords
display
loop antenna
smart card
rfid reader
terminal
Prior art date
Application number
KR1020140183250A
Other languages
Korean (ko)
Inventor
윤용훈
Original Assignee
(주)에이텍티앤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)에이텍티앤 filed Critical (주)에이텍티앤
Priority to KR1020140183250A priority Critical patent/KR20160074214A/en
Publication of KR20160074214A publication Critical patent/KR20160074214A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0003—Automatic card files incorporating selecting, conveying and possibly reading and/or writing operations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0003—Automatic card files incorporating selecting, conveying and possibly reading and/or writing operations
    • G06K17/0006—Automatic card files incorporating selecting, conveying and possibly reading and/or writing operations with random access selection of a record carrier from the card-file, e.g. the carriers are suspended on the selection device which in part of the card magazine

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)

Abstract

A loop antenna formed on an outer surface of a front surface of a display unit of a mobile terminal, the RFID reader being mounted on a terminal; And an electromagnetic wave shielding part formed on a rear surface of the display to remove electromagnetic interference, wherein the loop antenna is protruded from the display, and the electromagnetic wave shielding part is formed on the display bezel part .

Description

{RFID reader for smart cards}

The present invention relates to a RFID (radio frequency identification) reader for a smart card, and more particularly, to an RFID reader for a smart card that improves the performance of an RFID loop antenna by minimizing electromagnetic interference caused by peripheral circuits and metal components.

Generally, a terminal (especially a traffic terminal) having an RFID reader for a smart card using 13.56 MHz is configured with a display including an FND or a small LCD and a loop antenna for RFID, without a display for displaying smart card information.

Here, a smart card is an electronic credit card that can store a large amount of information by mounting an IC (integrated circuit) memory device. The ISO standard refers to all cards having one or more ICs. Developed in France, it is used in financial institutions, medical insurance cards, transportation cards, credit cards, and so on. It is also called an IC card or a chip card. Compared to existing magnetic cards (magnetic cards), it has a very large memory capacity, high functionality and stability.

Smart cards are classified into memory-type smart cards, microprocessor-embedded smart cards, and interactive smart cards.

A memory type smart card is a smart card that does not have a built-in microprocessor, and includes a security logic in addition to a memory used mainly in a field that can be treated as a security such as a public telephone card or a purchase ticket. There is also a method in which only memory is stored for pure data storage such as medical insurance card.

The microprocessor-embedded smart card is a smart card that performs high-level functions such as judgment, calculation, and data protection by embedding a microprocessor and memory. The interactive smart card includes a microprocessor, a memory, an I / O protocol, A smart card capable of interactive transmission of information.

In recent years, with the development of display technology and the development of UI and product design in a terminal equipped with an RFID reader for a smart card, the size of the RFID antenna has become relatively small due to the tendency that the size of the display is increased as the size of the front surface of the terminal.

The prior art for a smart card reader is disclosed in the following Patent Document 1: Publication No. 10-2009-0058758 (published on Jun. 10, 2009).

In the conventional technology disclosed in Patent Document 1, a smart card COB (chip on board) provided in a smart card and a smart card COB are electrically separated from each other and provided in a smart card, and a flash memory having a plurality of input / Display such as e-ink that maintains the final display status even when there is no power supply Universal serial of personal computer in the form of a plurality of electrical contacts for exchanging information with the COB of the COB, the smart card COB and the flash memory and the display means And a bus-connected reader.

This reader is installed in a personal computer, and the information requiring protection according to the user's operation is separated from the information not requiring protection and is read or read. When it is necessary to read the information requiring protection, Inquires about the accident of the credit card, and approves or denies the reading.

Korean Patent Publication No. 10-2009-0058758 (published on Jun. 10, 2009)

However, the RFID reader and smart card reader of the related art tend to be larger in size of the front surface of the terminal due to development of display technology, UI, product design, etc., There is a drawback that the performance is deteriorated.

Therefore, the present invention has been proposed in order to overcome the above-described general problems of the RFID reader for smart card and the related art, minimizing electromagnetic wave interference due to peripheral circuits and metal components, thereby improving the performance of the RFID loop antenna And a RFID reader for a smart card.

Another object of the present invention is to provide an RFID reader for a smart card, which realizes an RFID loop antenna by enclosing a display front portion of a terminal, thereby improving antenna performance.

According to another aspect of the present invention, there is provided an RFID reader for a smart card, comprising: a loop antenna formed on an outer surface of a display front surface of a terminal; And an electromagnetic wave shielding part formed on a rear surface of the display to remove electromagnetic interference.

The loop antenna may protrude from the display.

The electromagnetic wave shielding portion is formed on the display bezel.

The electromagnetic wave shielding unit may be embodied as an absorber.

According to the present invention, there is an advantage that the performance of the RFID loop antenna can be improved by minimizing electromagnetic interference caused by peripheral circuits and metal components.

In addition, according to the present invention, the RFID loop antenna is implemented by wrapping the front surface of the display of the terminal, so that the loop antenna can be extended to improve the antenna performance.

1 is a schematic configuration diagram of a terminal incorporating an RFID reader for a smart card according to the present invention;
Fig. 2 is a detailed configuration diagram of the display rear portion of Fig. 1. Fig.

Hereinafter, an RFID reader for a smart card according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an RFID reader for a smart card according to a preferred embodiment of the present invention.

The RFID reader for a smart card according to the present invention is provided with a display 11 for providing information on the whole body of the smart card terminal 10. Here, the display 11 may be implemented by an FND or a liquid crystal display (LCD).

A loop antenna 12 is formed on the outer surface of the front portion of the display 11. It is preferable that the loop antenna 12 is formed to protrude from the display 11.

In addition, an electromagnetic wave shielding part 13 for eliminating electromagnetic wave interference is formed on the rear surface of the display 11. Preferably, the electromagnetic wave shielding portion 13 is formed on the rear portion of the display 11, and is formed on the display bezel portion.

The operation of the RFID reader for a smart card according to the preferred embodiment of the present invention will now be described in detail.

First, the RFID reader for a smart card mainly comprises a loop antenna 12, a reader connected to the loop antenna 12, and a reader for reading information of a smart card contacted or not in contact with the loop antenna 12.

It is preferable that the reader is built in the body of the smart card terminal and is implemented by an IC. One end of the loop antenna 12 is connected to one end of the input terminal of the IC so that information of the smart card read from the loop antenna 12 is inputted to the IC through the input terminal.

Here, a display 11 for displaying information is provided on the front surface of the body of the terminal, and a loop antenna 12 is formed on the outer surface of the display 11. If the loop antenna 12 is formed on the outer surface of the display 11, the overall loop antenna size can be enlarged, and the extension sensitivity can be increased and the performance of the antenna can be improved.

The loop antenna installed in the conventional terminal has a smaller size of the overall loop antenna when the terminal is miniaturized and there is no display or a small FND is installed. As a result, the sensitivity is deteriorated, which causes deterioration of performance of the antenna.

In contrast, the loop antenna 12 of the present invention extends the size of the overall loop antenna 12 by forming the loop antenna 12 so as to surround the outer surface of the display 11 even when the size of the terminal is small . The size of the loop antenna is directly related to the reception sensitivity, and consequently the reception sensitivity means the performance of the antenna.

In addition, the loop antenna 12 preferably protrudes (higher) from the display 11 provided on the front surface of the body of the terminal. By protruding from the display 11, the performance of the RFID loop antenna can be prevented from being deteriorated by the magnetic field due to the metal component of the display LCD bubble part. For example, since RFID is a device for reading information of a smart card in a wireless manner, if there is metal in the periphery, electromagnetic interference may occur and the recognition rate may be lowered.

Therefore, in order to prevent such electromagnetic interference, the loop antenna 12 is formed so as to protrude higher than the display 11 in the present invention, thereby suppressing the electromagnetic interference that may be caused by the magnetic field due to the metal component of the LCD bugle portion for display .

Meanwhile, the loop antenna 12 is installed inside the cover 14 of the terminal body. At this time, an LCD bezel for displaying various electronic circuits and metal components is provided inside the terminal body. The LCD bezel portion for the display of such an electronic circuit or metal component is made of a conductor and can generate electromagnetic interference.

Such electromagnetic interference degrades the RFID recognition rate as a result.

Therefore, in order to prevent the deterioration of the recognition rate of the RFID, in the present invention, the electromagnetic wave shielding part 13 is formed inside the body in which the loop antenna 12 is embedded, thereby eliminating the electromagnetic wave interference of the loop antenna 12. Here, the electromagnetic wave shielding part 13 may be formed on the LCD bezel for display or enclose the loop antenna 12.

Here, the electromagnetic wave shielding part 13 may use an absorber. Absorbers can use Digitizer Absorber films or Electromagnetic Interference (EMI) films.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

The present invention is applied to RFID reader technology for smart cards using 13.56 MHz.

10: Terminal
11: Display
12: Loop antenna
13: Electromagnetic wave shielding part
14: cover

Claims (4)

A loop antenna formed on an outer surface of a display front portion of the terminal; And
And an electromagnetic wave shielding part formed on a rear surface of the display to remove electromagnetic interference.
The RFID reader of claim 1, wherein the loop antenna protrudes from the display.
The RFID reader for a smart card according to claim 1, wherein the electromagnetic wave shielding part is formed on the display bezel part.
The RFID reader for a smart card according to claim 1 or 3, wherein the electromagnetic wave shielding unit is embodied as an absorber.


KR1020140183250A 2014-12-18 2014-12-18 RFID reader for smart cards KR20160074214A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140183250A KR20160074214A (en) 2014-12-18 2014-12-18 RFID reader for smart cards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140183250A KR20160074214A (en) 2014-12-18 2014-12-18 RFID reader for smart cards

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KR20160074214A true KR20160074214A (en) 2016-06-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11223072B2 (en) 2017-09-25 2022-01-11 Lg Chem, Ltd. Apparatus for assigning identification information to slave battery management units

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090058758A (en) 2007-12-05 2009-06-10 슬림디스크 주식회사 Smart card with flash memory and display, card reader of smart card, drm method using that

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090058758A (en) 2007-12-05 2009-06-10 슬림디스크 주식회사 Smart card with flash memory and display, card reader of smart card, drm method using that

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11223072B2 (en) 2017-09-25 2022-01-11 Lg Chem, Ltd. Apparatus for assigning identification information to slave battery management units

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N231 Notification of change of applicant
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E601 Decision to refuse application