NFC communication device

Abstract

To provide an NFC communication device capable of reliably reading a specific NFC card. [Solution] An NFC communication device 10 for reading data from a specific area of ​​an NFC card 30 comprises a card reading board 12 having a card access coil 14 on its surface, a card holder 16 provided on the card reading board 12 and having an insertion slot 18 for the NFC card 30, a first sheet 20 provided on the top surface 16A of the card holder 16, and a second sheet 22 provided on the bottom surface of the card reading board 12, the first sheet 20 and second sheet 22 corresponding in size to the card access coil 14 and formed from a material that generates eddy currents due to magnetic changes.

Description

[Technical Field]

[0001] The present invention relates to a communication device using NFC (Near Field Communication) technology, and more specifically to an NFC communication device suitable for use in a limited NFC reading area. [Background technology]

[0002] NFC (Near Field Communication) is a short-range wireless communication technology that can communicate over extremely short distances, specifically within a few centimeters. By utilizing this function, it can be used for various purposes, such as short-distance data communication.

[0003] One example of such short-range wireless communication technology is a card reader device disclosed in Patent Document 1 below. The card reader device in Patent Document 1 includes a main body housing a communication unit including an antenna for communicating with a contactless IC card, an input operation unit disposed on the outer surface of the main body for switching or setting various functions including a function for reading card information, and a control unit housed in the main body and including a storage unit for storing information read from the contactless IC card, with the antenna disposed opposite the inner surface of the main body and communicating with the contactless IC card via the main body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-63368 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in conventional communication devices such as those in Patent Document 1 mentioned above, when a specific card has a wide reading area, such as a 5 cm range around the coil, the reading area cannot be limited by simply holding the card over the device, so data outside the specific area may be read, making it impossible to reliably read the specific card.

[0006] The present invention addresses the above points and aims to provide an NFC communication device that can reliably read a specific NFC card. [Means for solving the problem]

[0007] The first invention is an NFC communication device for reading data from a specific area of ​​an NFC card, comprising a card reading board with a card access coil on its surface, a card holder mounted on the card reading board and having an insertion slot for an NFC card, a first sheet mounted on the top surface of the card holder, and a second sheet mounted on the bottom surface of the card reading board, wherein the first sheet and second sheet are sized to correspond to the card access coil and are formed from a material that generates eddy currents due to magnetic changes.

[0008] The second invention is characterized in that, in the first invention, the first sheet and the second sheet are metal sheets or ferrite sheets.

[0009] The third invention is characterized in that, in the first invention, the first sheet and the second sheet are aluminum sheets.

[0010] The above and other objects, features and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings. [Effects of the Invention]

[0011] The NFC communication device of the present invention for reading data from a specific area of ​​an NFC card comprises a card reading board with a card access coil on its surface, a card holder mounted on the card reading board and having an insertion slot for an NFC card, a first sheet mounted on the top surface of the card holder, and a second sheet mounted on the bottom surface of the card reading board, wherein the first sheet and second sheet are sized to correspond to the size of the card access coil and are made of a material that generates eddy currents due to magnetic changes.

[0012] These configurations prevent the magnetic field from leaking outside and only pass through the card holder, so even if the card is outside the card holder, that part will not be read. In other words, the reading area is limited, making it possible to reliably read specific cards. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is an exploded perspective view showing the configuration of an NFC communication device according to an embodiment of the present invention; [Figure 2] 2 is a cross-sectional view of the stacked state of the NFC communication device of FIG. 1 taken along line #A-#A and viewed in the direction of the arrows. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] A best mode for carrying out the present invention will be described below with reference to Figures 1 and 2. Figure 1 is an exploded perspective view showing the configuration of an NFC communication device of this embodiment. Figure 2 is a cross-sectional view of the stacked state of the NFC communication device of Figure 1 taken along line #A-#A and viewed in the direction of the arrows.

[0015] The NFC communication device 10 of this embodiment is a device for reading data from a specific area of ​​an NFC card 30, and as shown in Figures 1 and 2, has a structure in which a card reading board 12 having a card access coil 14 on its surface, a card holder 16 provided on the card reading board 12 and having an insertion slot 18 for the NFC card 30, a first sheet 20 provided on the top surface 16A of the card holder 16, and a second sheet 22 provided on the bottom surface of the card reading board 12 are stacked.

[0016] The first sheet 20 and the second sheet 22 are sized to correspond to the size of the card access coil 14 and are made of a material that generates eddy currents due to magnetic changes. Specifically, an aluminum sheet, a metal sheet, a ferrite sheet, or the like is used.

[0017] With these configurations, when the NFC card 30 is inserted into the card holder 16, the magnetic field does not leak out and only passes through the card holder, so even if the card is outside the card holder, that part will not be read. In other words, the reading area is limited, and specific cards can be read reliably.

[0018] <Effects> As described above, the NFC communication device 10 of this embodiment comprises a card reading board 12 having a card access coil 14 on its surface, a card holder 16 provided on the card reading board 12 and having an insertion slot 18 for an NFC card 30, a first sheet 20 provided on an upper surface 16A of the card holder 16, and a second sheet 22 provided on the bottom surface of the card reading board 12, and the first sheet 20 and second sheet 22 are configured to correspond in size to the card access coil and to be made of a material that generates eddy currents due to magnetic changes.

[0019] These configurations prevent the magnetic field from leaking outside and only pass through the card holder, so even if the card is outside the card holder, that part will not be read. In other words, the reading area is limited, making it possible to reliably read specific cards.

[0020] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention. For example, in the above embodiment, aluminum sheets are used as the material for the first sheet 20 and the second sheet 22, but this is only an example, and other metal sheets may be used as long as they achieve the same effect. Furthermore, although the first sheet 20 and the second sheet 22 are made of the same material, they may be made of different materials. [Industrial Applicability]

[0021] The NFC communication device of the present invention for reading data from a specific area of ​​an NFC card comprises a card reading board with a card access coil on its surface, a card holder mounted on the card reading board and having an insertion slot for an NFC card, a first sheet mounted on the top surface of the card holder, and a second sheet mounted on the bottom surface of the card reading board, the first sheet and second sheet being equivalent in size to the card access coil and made of a material that generates eddy currents due to magnetic changes.

[0022] These configurations prevent the magnetic field from leaking outside and allow it to pass only through the card holder, so even if a card is placed outside the card holder, that part will not be read. In other words, this is suitable for use in NFC communication devices that limit the reading area and ensure that specific cards are read reliably. [Explanation of symbols]

[0023] 10:NFC communication device 12: Card reader board 14: Card access coil 16: Card holder 16A:Top surface 16B: Bottom 18: Insertion port 20: First sheet 22: Second sheet 30: NFC card

Claims

1. An NFC communication device for reading data in a specific area of ​​an NFC card, a card reading board having a card access coil on its surface; a card holder provided on the card reading board and having an insertion slot for the NFC card; a first sheet provided on an upper surface of the card holder; a second sheet provided on the bottom surface of the card reading board; It is equipped with The NFC communication device is characterized in that the first sheet and the second sheet correspond in size to the card access coil and are made of a material in which eddy currents are generated due to magnetic changes.

2. 2. The NFC communication device according to claim 1, wherein the first sheet and the second sheet are metal sheets or ferrite sheets.

3. 2. The NFC communication device according to claim 1, wherein the first sheet and the second sheet are aluminum sheets.

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