KR101122603B1 - radio frequency electronic card having sound emission function - Google Patents

Abstract

The present invention provides a certain sound when the card is used without a separate power supply, thereby increasing the user's interest and advertising effects, as well as providing an RF electronic card that can easily recognize its use without directly checking the corresponding card. It is about.

Specifically, the present invention is an RF electronic card which is provided with a first antenna and an IC chip to perform radio communication with a terminal emitting radio frequency signals, the second antenna being insulated from the first antenna and forming an electromagnetic field by the radio frequency signal. An antenna; A circuit unit electrically connected to the second antenna to induce a driving current from the electromagnetic field; Provided is an RF electronic card having a sound transmitting function including a speaker electrically connected to the circuit unit for transmitting a sound through the driving current.

As a result, the RF electronic card according to the present invention provides convenience for maximizing the advertising effect according to the interest of the user and easily recognizing the use thereof without directly checking the corresponding card. Furthermore, the RF electronic card according to the present invention is characterized by being capable of displaying an image with a predetermined luminance or more in addition to the auditory sound, thereby further improving the effect.

Description

RF electronic card having a sound emitting function {radio frequency electronic card having sound emission function}

The present invention relates to a radio frequency electronic card (radio frequency electronic card) having a sound transmission function, and more specifically, to increase the user's interest and advertising effect by transmitting a certain sound when the card is used without a separate power source (전원). Of course, the present invention relates to an RF electronic card that can be used easily without checking the card directly.

In general, an RF electronic card refers to a contactless type electronic card medium using a radio frequency.

Recently, integrated circuit cards with high confidentiality, security, and stability have been introduced based on the improvement of semiconductor mounting technology and RFID module.The public, financial, medical / The demand is rapidly increasing in all sectors of our industry, such as welfare and security.

Such an IC card is also called a smart card, and is a hybrid type of contact type, a contactless type, and a simple merging of both, depending on whether the terminal is in contact with the terminal. And it can be divided into a combi type (combi type) that can share the components.

Among them, contactless, hybrid, and combination IC cards, which are widely used in transportation cards, ID cards, logistics cards, bank cards, public phone cards, and multifunction composite cards, do not need to be in direct contact with terminals when using cards. All of them are a kind of RF electronic card and are based on 'RFID (Radio Frequency identification)', a next generation recognition technology.

In general, 'RFID' is a radio frequency identification technology that identifies an object by using electromagnetic or electrostatic coupling in the radio frequency band, and reads a tag or a transponder that is a data storage medium. A means, the reader, is an essential component. In this case, the tag includes a memory for storing data, a chip for communication control, a tag antenna for wireless communication, and the reader includes a logic operation circuit for signal conversion and information verification, and wireless communication. And a reader antenna for the same.

Accordingly, 'RFID' assigns a tag to which a certain data is stored to an object to identify a tag through radio data communication in a radio frequency band. Microwave frequency band of 5GHz or more is used from the low frequency band of 150KHz or less, such as 2.45Ghz.

On the other hand, when the RFID is applied to the RF electronic card, the tag corresponds to the RF electronic card, and the reader corresponds to the terminal, respectively, and includes contactless (hybrid and combination) as an example of the RF electronic card. The IC card includes an integrated circuit chip and an antenna electrically connected thereto.

At this time, the IC chip includes an electronic card operating system (COS: Chip Operation System), a security algorithm (DES, RAS, SEED, T-DES, etc.), a microprocessor unit (MPU: Micro Processor Unit), EEPROM, RAM, etc. And a memory such as a ROM and the like, the antenna activates the IC chip through the radio frequency of the terminal and simultaneously receives and radiates a data signal for wireless communication.

Therefore, when the IC card is close to the terminal, the IC chip is activated by the antenna, and wireless communication is performed between the IC chip and the terminal.

For reference, RF e-cards are divided into active type with battery and passive type without battery according to the presence or absence of power, and mono type of single memory. The hybrid memory is divided into a hybrid type in which the above memories are operated separately, and a combi type in which two or more memories are interoperated with each other.

Meanwhile, as the spread of RF electronic cards spreads rapidly, various various convenience functions are added. As a good example, patent application No. 10-2004-0102796 by the present applicant discloses an RF electronic card using an LED display module.

However, if the spread and use of the RF electronic card is expected to increase rapidly in the future, the scope of use is substantially infinite, and various various forms may be introduced.

Accordingly, the present invention intends to present an improved form of the RF electronic card, specifically, to raise the user's interest and advertising effect, as well as to increase the user's interest by sending a certain sound when using the card without a separate power source The present invention aims to provide an RF electronic card that can easily recognize the use without checking the card directly.

In order to achieve the above object, the present invention is an RF electronic card that is provided with a first antenna and an IC chip to perform a radio communication with a terminal that emits a radio frequency signal, insulated from the first antenna and to the radio frequency signal A second antenna forming an electromagnetic field by the second antenna; A circuit unit electrically connected to the second antenna to induce a driving current from the electromagnetic field; Provided is an RF electronic card having a sound transmitting function including a speaker electrically connected to the circuit unit for transmitting a sound through the driving current.

At this time, the IC chip includes at least one memory of EEPROM, RAM, ROM, the memory is characterized in that the sound information for the sound is stored. In addition, the speaker is a piezoelectric speaker, characterized in that connected to the circuit portion and the first tax wire.

In addition, the display unit is electrically connected to the circuit unit further comprises a LED display module for displaying a constant brightness image through the drive current, the LED display module, the bottom surface to provide a flat surface of the silver or white A reflector sheet of; At least one LED disposed on one side of the reflector sheet and emitting light in parallel to the reflector sheet when the driving current is applied; A light guide plate seated on the reflector sheet so that light of the LED is incident on one side; The printing pattern for the image is provided to cover the upper surface of the light guide plate, characterized in that it comprises a print layer exposed to the outside.

The IC chip may further include a Vcc terminal for power input and a GND terminal of a ground potential, and the circuit unit may be electrically connected to the Vcc terminal and the GND terminal. The circuit unit may include a Vcc terminal and the And a second tax wire connected to the GND terminal.

As described above, the present invention provides an RF electronic card capable of transmitting a specific sound when the card is used without a separate power source.

As a result, the RF electronic card according to the present invention provides convenience for maximizing the advertising effect according to the interest of the user and easily recognizing the use thereof without directly checking the corresponding card.

Furthermore, the RF electronic card according to the present invention is characterized by being capable of displaying an image with a predetermined luminance or more in addition to the auditory sound, thereby further improving the effect.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an RF electronic card 10 having a sound transmitting function (hereinafter, simply referred to as an 'RF electronic card 10') according to the present invention. 20 and the IC chip 30, and a second antenna 40, a circuit portion 45 and a speaker (speaker: 50) electrically connected to them separately.

Looking at each of them in detail as follows.

First, the first antenna 20 and the IC chip 30 are components similar to those of a general RF electronic card to perform wireless communication with an external terminal.

That is, the first antenna 20 activates the IC chip 30 through a radio frequency signal generated from an external terminal and receives and radiates a data signal for wireless communication. In this case, preferably, the first antenna 20 may be a loop inductive coil that surrounds the RF electronic card 10 to provide signal radiation in a predetermined direction and to secure a stable power supply. ) Is connected in parallel to obtain a resonant frequency signal equal to the external radio frequency.

The IC chip 30 is activated by the first antenna 20 to perform contactless wireless communication with an external terminal, and includes a microprocessor and a memory therefor. In this case, the microprocessor is preferably equipped with an electronic card operating system, a security algorithm, arithmetic functions, etc. in software, and the memory is formed of at least one of an EEPROM, a RAM, and a ROM, and is integrated in the IC chip 30 together with the microprocessor.

Next, the second antenna 40, the circuit portion 45, and the speaker 50 are parts for transmitting a predetermined sound when the card is used as a unique component according to the present invention.

First, the second antenna 40 forms a predetermined electromagnetic field through the radio frequency signal of the external terminal. The second antenna 40 for this purpose may be a loop inductive coil insulated from the first antenna 20, and the capacitors may be connected in parallel.

At this time, the position of the second antenna 40 is not particularly limited, but may be disposed in the same inlay as the first antenna 20, and preferably in order to prevent unnecessary damage such as disconnection due to external pressure. In the case of an outer or magnetic card deviating from the embossed position of the card surface such as the expiration date, it may be arranged at an overlapped position on the magnetic bar.

Next, the circuit unit 45 induces a driving current from the electromagnetic field of the second antenna 40 to drive the speaker 50 to be described later. The circuit unit 45 for this purpose includes an LC element (inductance, capacitance, etc.), an OP amplifier (Op-Amp), a rectifying element, etc. on a printed circuit board (PCB) electrically connected to the second antenna 40. It can show the mounted form.

In this case, if necessary, a separate memory may be mounted in the circuit unit 45 to store acoustic data for transmission to the outside through the speaker 50, but preferably, the audio data is required for thinning and miniaturization of the circuit unit 45. May be stored in the memory of the IC chip 30 described above, and the type of sound data has no practical limitations such as advertisements, commercial message songs, beeps, and announcements appropriate for the purpose of the card.

Next, the speaker 50 transmits the acoustic data of the memory as an audible sound through the driving current of the circuit unit 45. For this purpose, the speaker 50 may be a piezoelectric speaker or a piezo speaker, which is a thinly known element as much as possible. The circuit part 45 and the speaker 50 may have a high conductive tax wire having a predetermined diameter (for example, 0.16 mm). It can be wire bonded with gold wire (70).

As a result, when the RF electronic card 10 according to the present invention enters into the effective distance of the terminal, wireless communication is performed by the first antenna 20 and the IC chip 30 and at the same time, due to the electromagnetic field of the second antenna 40. In the circuit part 45, a driving current is induced and transmitted to the speaker 50. Accordingly, the speaker 50 transmits a predetermined auditory sound, so as to obtain an advertisement effect according to the interest of the user, as well as the corresponding card. You can easily recognize the use without checking it yourself.

2 to 5 are each a view showing a preferred embodiment of the RF electronic card according to the present invention, Figure 2 is an external perspective view, Figure 3 is a plan perspective view, Figure 4 is a partial exploded perspective view, 6 corresponds to sectional drawing, respectively.

As shown, the RF electronic card 10 according to the present invention may be composed of a base plate (80) of a synthetic resin material and first and second protective films (85,90) attached to both surfaces thereof. .

At this time, the material of the base plate 80 and the first and second protective films (85,90) may be the same as the general one, for example, the base plate 80 is a PETG (Glycol Modified Polyethylene Terephthalate), the first and The second protective films 85 and 90 may be made of polyvinyl chloride (PVC), and the overall size of the RF electronic card 10 may also be about 85.6 mm long, 54 mm short, and 0.76 mm thick, similar to the general size. Can be represented.

The first and second antennas 20 and 40 are arranged to be insulated from each other in the inlay of the base plate 80, and the speaker 50 is installed to be exposed from one of the first and second protective films 85 and 90. do.

In this case, in particular, the speaker 50 may be inserted into the base plate 80 through one of the first or second protective films 85 and 90, and the base plate 80 corresponding to the bottom of the speaker 50 may be inserted into the base plate 80. It is preferable that the hole 52 having a smaller diameter than the speaker 50 is indented to support the edge of the speaker 50. It is electrically connected to the tax line 70, and secures a vibration space for sound transmission of the hole 82 to maintain a constant distance with the speaker 50. That is, the hole 82 defining a predetermined vibration space at the lower end of the speaker 50 serves as a ring to which the sound transmitted from the speaker 50 can ring from the inside of the RF electronic card 10.

At this time, an anisotropic conductive film (ACF) 54 is interposed between the edge of the speaker 50 and the outside of the hole 82 which are in close contact with each other to fix the speaker 50 and at the same time the speaker 50 and the first. The tax line 70 may be electrically connected. Here, the anisotropic conductive film 54 refers to a known conductive adhesive medium in which fine conductive particles are dispersed into a resin material and processed into a tape.

In addition, the IC chip 30 may be exposed from one of the first or second protective films 85 and 90 under the premise of a chip on board (COB) shape as shown in the drawing. In this case, it will be apparent to those skilled in the art that the IC chip 30 may be embedded in the base plate 80 or covered with one of the first and second protective films 85 and 90.

In addition, the driving current is connected to the second antenna 40 and the first tax wire 70 to generate a driving current through the electromagnetic field of the second antenna 40, and then transmitted to the speaker 50 through the first tax wire 70. The circuit unit 45 may be freely changed in position if necessary, and this will be obvious to those skilled in the art without further explanation.

On the other hand, Figure 6 is a diagram showing an RF electronic card 10 according to a first modification of the present invention, shown in the form of a plan view similar to Figure 3 for convenience, and performs the same role as the above-described content Since the same reference numerals are given to the same parts, redundant descriptions are omitted.

As shown, if the RF electronic card 10 according to the first modification of the present invention is a hybrid or combination type, the speaker 50 is a Vcc terminal for power supply among a plurality of terminals provided in the IC chip 30 and The GND terminal of the ground potential and the second tax line 75 are separately connected to achieve a stable power supply.

That is, in the general hybrid or combination IC card 10, an IC chip 30 of a COB (chip on board) type exposed to the outside for contact communication with a terminal is used, which includes a Vcc for power supply. Terminal, GND terminal of ground potential, RST terminal for reset signal input, Vpp terminal for programming voltage input, CLK terminal for clock signal input, I / O terminal for data input and output, one or more spares An RFU terminal is provided.

Therefore, the RF electronic card 10 according to the first modification of the present invention uses a separate second tax line 75, and connects the Vcc terminal and the GND terminal of the IC chip 20 with the speaker 50, respectively. In addition to (45), it can be used as another power source. In this case, the material and the diameter of the second tax line 75 may be the same as the first tax line 70.

On the other hand, Figure 7 is a diagram showing an RF electronic card according to a second modification of the present invention, shown in the form of a plan view similar to FIG. 3 for convenience, the same as performing the same as previously described Parts are given the same reference numerals.

As shown, the RF electronic card 10 according to the second modification of the present invention includes a separate LED display module 110 connected to the circuit unit 45.

At this time, the LED display module 110 includes at least one LED (Light Emitting Diode: 116), which can be mounted directly on the circuit unit 45, the LED display module 110 is the circuit unit 45 By using the drive current of the image of the constant luminance to the front of the RF electronic card 10 is displayed. Therefore, the RF electronic card 10 according to the second modification of the present invention displays a visual image through the LED display module 110 together with the auditory sound through the speaker 50.

8 and 9 are cross-sectional views and exploded perspective views showing the LED display module 110 of the RF electronic card 10 according to the second modification of the present invention, respectively.

As shown, the LED display module 110 of the RF electronic card 10 according to the second modification of the present invention is a reflector sheet (112) laid on the bottom of a predetermined indentation groove provided in the base plate 80, The light guide plate 117 (LGP) mounted on the upper portion, the at least one LED 116 mounted on the circuit part 45 and disposed on one side of the light guide plate 117 and the light guide plate 117 are covered. It includes a printing layer 118 exposed to the outside through one of the first or second protective film (85,90).

In this case, the reflector sheet 112 provides a plane having a high reflectivity of white or silver as a substantial bottom surface of the LED display module 110, and the light guide plate 117 seated thereon reflects light incident from one side to the front. It plays a role. At least one LED 116 is positioned on one side of the light guide plate 117 to emit light using a driving current of the circuit unit 45, and a printing layer in which a predetermined color pattern such as advertisement text is engraved on the upper surface of the light guide plate 117 ( 118) is covered.

As a result, when the RF electronic card 10 according to the second modification of the present invention enters into the effective distance of the terminal, the speaker 50 transmits an audible sound through the driving current of the circuit 45 and at the same time the LED ( 116 emits light, and the light is reflected by the reflector sheet 112 and the light guide plate 117 to the front to display the print pattern of the printing layer 118 to the outside as an image of a constant luminance.

Therefore, the user can recognize the image of a certain luminance along with the sound transmitted from the card at the same time as the normal use of the RF electronic card 10, through which it is possible to easily recognize the use of the card with the advertising effect according to the interest. have.

On the other hand, the above description is only a few examples of the present invention, it will be apparent to those skilled in the art that the details can be variously modified. However, if these modifications fall within the spirit of the present invention, it should be included in the scope of the present invention, and the scope of the present invention can be clearly interpreted through the following claims.

1 is a block diagram of an RF electronic card in accordance with the present invention.

2 is a perspective view of an RF electronic card according to the present invention.

3 is a plan perspective view of an RF electronic card according to the present invention;

Figure 4 is an exploded perspective view of a part of the RF electronic card according to the present invention.

5 is a cross-sectional view of an RF electronic card according to the present invention.

6 is a plan perspective view of an RF electronic card according to a first modification of the present invention;

7 is a plan perspective view of an RF electronic card according to a second modification of the present invention.

8 is a sectional view of an RF electronic card according to a second modification of the present invention;

Figure 9 is an exploded perspective view of the LED display module of the RF electronic card according to a second modification of the present invention.

<Description of the symbols for the main parts of the drawings>

10: RF electronic card 20: the first antenna

30 IC chip 40 second antenna

45: circuit part 50: speaker

70: tax ship

Claims (7)

An RF card comprising a base plate on which a first antenna and an IC chip are mounted to perform radio communication with a terminal emitting radio frequency signals, and first and second protective films attached to both sides of the base plate. A second antenna mounted on the base plate and electrically insulated from the first antenna to form an electromagnetic field by the radio frequency signal; A circuit unit mounted on the base plate and electrically connected to the second antenna to induce a driving current from the electromagnetic field; Is inserted into the base plate through the first or second protective film and electrically connected to the circuit portion includes a speaker for transmitting sound through the drive current, The speaker is a piezoelectric speaker, a hole having a diameter smaller than that of the speaker is inserted into the base plate at the bottom of the speaker to send the sound to the outside, and the speaker is mounted on the base plate of the first tax wire and the speaker. And an RF card having a sound transmitting function electrically connected to the circuit unit via an anisotropic conductive film interposed along an edge and an outer portion of the hole. The method according to claim 1, The IC chip includes at least one memory of EEPROM, RAM, ROM, the memory having a sound transmitting function for storing the sound information for the sound electronic card. The method according to claim 1, And an LED display module mounted on the base plate and electrically connected to the circuit unit to display an image of a constant luminance through the driving current. The method of claim 3, The LED display module, A bottom reflector sheet providing a silver or white plane; At least one LED disposed on one side of the reflector sheet and emitting light in parallel to the reflector sheet when the driving current is applied; A light guide plate seated on the reflector sheet so that light of the LED is incident on one side; And a printing pattern for the image, the RF electronic card having a sound transmitting function including a printing layer covering the upper surface of the light guide plate. The method according to any one of claims 1 to 4, The IC chip further includes a Vcc terminal for power input and a GND terminal of a ground potential, and the circuit unit has a sound transmitting function electrically connected to the Vcc terminal and the GND terminal. The method according to claim 5, And the circuit unit has a sound transmitting function connected to the Vcc terminal and the GND terminal by a second tax wire. delete

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