KR20020026305A - Compact disk equipped with RFID tag - Google Patents

Abstract

PURPOSE: A compact disc including RFID tag having an identification sign and specific data is provided to prevent the compact disc from being robbed when the disc is placed on show and to keep the data stored in the disc from being reproduced illegally. CONSTITUTION: A compact disc having RFID tag includes a loop coil(11) wound at a non-data-storing region(5) placed around a circular hole(7) formed at the center of the disc, and an RFID transponder chip(13) electrically connected to both ends of the loop coil. The RFID transponder chip contains an identification sign and special information. The loop coil and RFID transponder chip are located at the center of the disc and fixed by fixing plates(15a,15b). Otherwise, the loop coil and RFID transponder chip are placed on a recess on the surface of the disc and fixed by a fixing plate.

Description

Compact disk equipped with RFID tag

The present invention is built into a compact disc (CD) or a compact disc card (CD CARD) by embedding an RFID tag having a unique identifier or specific data (RFID TAG), to prevent theft when the product is displayed in the store, duplication of stored data The present invention relates to a compact disc having an RFID ID tag that can be used for various purposes, such as a card for preventing or counterfeiting.

Compact Disc (CD) or Digital Versatile Disc (DVD) (hereinafter referred to as "Compact Disc") is a storage medium for storing digital data, which is usually a large capacity of 650MB to 800MB, in the case of DVD, several gigabytes (GB) Data can be saved. Compared with the video tape or audio tape which stores the conventional video information or audio information, it is easy to carry, easy to store, and the volume is remarkably reduced, while the conventional magnetic recording is possible because of the dramatically increased information capacity. It is rapidly replacing the tape of the method. Such compact discs are used not only for audio CDs, video CDs (V-CDs), DVDs, but also for CD cards. In the following description, a compact disc should be understood to include all of the above types.

Due to the compactness and portability of the compact disk, and the characteristics of data to be stored, theft is more easily stolen. This can easily be stolen while being displayed in a store for sale, and because of the characteristics of digital data, it can be easily copied or forged, which causes great damage to original authors of content.

In order to solve the problem of the compact disc, the store attaches a recognition device to the case of the compact disc, but since the recognition device is not attached to the compact disc itself, there is a disadvantage that it is easy to remove.

In addition, various copy protection technologies have been developed and applied to prevent the copying of digital data stored on compact discs.However, copy protection technology focuses only on the processing method of digital data stored on compact discs. Or they are having difficulty preventing counterfeiting. Moreover, due to the popularization of CD-RW, CD-R, etc., the copying device of compact discs, copy protection is becoming increasingly difficult. Therefore, there is an increasing demand for anti-theft and copy protection methods that are more advanced than conventional methods. This applies equally not only to compact discs but also to other media using compact discs, for example CD cards.

The present invention is to solve the above problems, an object of the present invention is to embed the RFID tag having a unique identifier or specific data (RFID TAG) in a compact disc (CD) or a compact disc card (CD CARD), It is to provide a compact disc with RFID ID tag that can be used for various purposes such as anti-theft, copying of stored data, and access card that is difficult to counterfeit when commercialized and displayed in the store.

The compact disc incorporating the RFID tag of the present invention for achieving the above object is a loop wound in a circular shape around a non-data storage area around a circular hole formed in the center of the compact disc or the compact disc. A coil and an RFID transponder chip electrically connected to both ends of the roof coil and having a unique identifier or other type of special information are installed. The loop coil and the RFID transponder chip are located at the center. The upper and lower portions are each fixed by separate fixing plates or form grooves cut in the upper side surface and are fixed by the fixing plate from the upper side.

1 is a plan view of a conventional compact disc,

2 is a plan view of a CD card using a conventionally used compact disc,

3 is a plan view of the RFID tag according to the present invention,

4 is a cross-sectional view illustrating an installation structure of a roof coil and a transponder chip of the present invention;

Figure 5 is a cross-sectional view of another installation structure of the roof coil and transponder chip of the present invention.

※ Explanation of symbols about main part of drawing ※

1: Compact disc 3: Data storage area

5: non-data storage area 7: circular hole

11: roof coil 13: (RFID) transponder chip

15a: upper fixing plate 15b: lower fixing plate

17: fixing plate 19: groove

19a: chip fixing surface 19b: coil fixing groove

Hereinafter, a compact disc incorporating the RFID tag of the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIGS. 1 and 2, a schematic structure of the CDs 1 and 1a, which are conventionally applied compact discs and compact discs, will be described. The compact disc 1 is manufactured in the form of a circular shape (having two kinds of sizes) or a part of an arc cut in accordance with a standard of a CD-ROM driver that is commonly used, and has a circular hole 7 formed in the center thereof. In addition, the non-data storage region 5 and the data storage region 3, which are also circular in shape, are formed separately from the circular hole 7.

The data storage area 3 is coated with a coating material for identifying the marking state using a laser light and a lens provided in the CD-ROM driver. The non-data storage area 5 is made of polycarbonate or the like. It consists of a transparent layer of the same material. Although not shown, a general compact disc is composed of a plurality of layers such as a labeling layer, a protective layer, a data storage layer, and a protective layer. In the present invention, since the non-data storage area 5 of the compact disc is used, there is no problem in storing or reading data. The CD card 1a has the same structure as the compact disc 1 of Fig. 1 except that the peripheral shape is rectangular.

The loop coil 11 and the (RFID) transponder chip 13 are attached to the non-data storage area 5 of the compact disc 1 or the CD card 1a having the above configuration. 3 is a plan view showing a coupling state of the roof coil 11 and the RFID transponder chip 13 according to the present invention. The loop coil 11 is configured by winding a coil in a plurality of member types, and serves as an antenna, and the RFID transponder chip 13 has a unique identifier or specially written information therein, for example, an encrypted member number and a social security number. Etc., and an integrated circuit chip having a circuit for transmitting a unique identifier or information into data.

RFID transponder chip 13 does not have its own operating power, and uses a method of wirelessly propagating unique identifiers or special information by acquiring energy by radio waves input from the roof coil 11 from the outside. In other words, the RFID transponder chip 13 has a built-in memory for storing a unique identifier or special information therein, and wirelessly from an external device such as a wireless ID reader through a loop coil 11 serving as an antenna. And a circuit for receiving the frequency signal, obtaining the operating energy from the received radio waves, and wirelessly transmitting the data stored in the memory through the loop coil 11.

An example of the configuration of an external device is a coil antenna and a demodulator for transmitting a radio frequency signal to the RFID transponder chip 13 and receiving a radio signal including specific data conveyed from the RFID transponder chip 13. And an RF ID reader including a frequency regulator and a signal detection circuit, and an interface unit for converting specific data output from the RF ID reader into readable data. Of course, the external device may further include a monitor capable of displaying a unique identifier according to its purpose of use, and may also be configured to display specific information stored on the compact disc when applied to a playback device of the compact disc. It is obvious.

The loop coil 11 and the RFID transponder chip 13 configured as described above have the circular holes 7 of the compact discs and CD cards 1 and 1a shown in FIGS. Is installed around. After the installation as described above, the roof coil 11 and the RFID transponder chip 13 is shielded from the outside. This shielding prevents the removal of the loop coil 11 and the RFID transponder chip 13 for forgery or modulation. In particular, if the loop coil 11 and the RFID transponder chip 13 are to be separated for forgery, modulation, or duplication, the loop coil 11 or the RFID transponder chip 13 is configured to be damaged, thereby effectively preventing illegal acts. You can prevent it.

4 and 5 are cross-sectional views showing the installation state of the roof coil 11 and the RFID transponder chip 13 according to the present invention. Each cross section is cut through the center of the circle of the compact disc.

First, referring to FIG. 4, the loop coil 11 and the RF-ID transponder chip 13 are positioned in the non-data storage area 5 of the center, and the upper fixing plate 15a and the lower fixing plate are respectively disposed on the upper side and the lower side. After placing 15b), the state of bonding using ultrasonic fusion, high frequency fusion, vibration fusion or adhesive is shown. The upper fixing plate 15a and the lower fixing plate 15b are discs of the same shape, and the circular hole 7 is formed in the center.

Briefly, ultrasonic fusion is a fusion of plastic plastic, FILM, or synthetic fiber using ultrasonic waves, which converts the power into electrical energy of 15,000 Hz or 28,000 Hz, converts it into mechanical vibration energy through a converter, and then boosts it. The ultrasonic vibration energy formed by adjusting the amplitude of the log is transmitted to the fusion through the horn, and the plastic is melted and bonded by the instantaneous frictional heat generated at the bonding surface of the fusion to generate a strong molecular bond. Generally no solvents or adhesives are used.

In addition, the high-frequency fusion is briefly described as a method of welding a current having a high frequency of about 450 kHz to the object to be welded with heat generated at this time, and divided into two types according to the current supply method. There are high frequency resistance welding which obtains heat and high frequency induction welding which uses heat of current induced in the base metal by the induction coil without directly sending a current to the welded material.

When fully combined, it has the same shape as a conventional compact disc. Attempting to separate the upper fixing plate 15a or the lower fixing plate 15b in the state of ultrasonic fusion, high frequency fusion, vibration fusion, or adhesive may cause the loop coil 11 or RFID transponder chip 13 to be damaged. Do not.

FIG. 5 shows a state in which a groove 19 is formed on the upper surface of the non-data storage area 5 of the compact disc and the roof coil 11 and the RFID transponder chip 13 are installed. The fixing plate 17 is brought into close contact with the roof coil 11 and the upper side of the RFID transponder chip 13 and is also brought into close contact using ultrasonic welding, high frequency welding, vibration welding or adhesive. In this case, the inner surface of the groove 19 is divided into a flat portion and a semi-circular groove, wherein the flat portion is a chip fixing surface 19a on which the RFID transponder chip 13 is located, and the semi-circular groove is a loop coil 11. The coil fixing groove 19b is fixed. Of course, it is also possible to form only the chip fixing surface 19a and the coil fixing groove 19b.

In the fixed state as described above, the fixed plate 17 is moved from the direction of the arrow to be compressed, and then the outer circumferential surface of the fixed plate 17 and the inner circumferential surface of the groove 19 are fixed using ultrasonic fusion, high frequency fusion, vibration fusion, or adhesive. Alternatively, the fixing plate 17 may be manufactured and attached to a material such as a strong tape without using the same material as the compact disc.

In the figure, the chip fixing surface 19a and the coil fixing groove 19b are formed only on the inner surface of the groove 19, but the chip is symmetrically positioned at a position corresponding to the inner surface of the fixing plate 17 fixed to the upper side. It is also possible to form the fixed surface 19a and the coil fixing groove 19b. As such, when the chip fixing surface and the coil fixing groove are formed in the fixing plate 17 and the groove 19, the fixing plate 17 and the groove 19 have a form that is completely in close contact with each other. This type increases the bondability and thus increases the likelihood of breakage of the loop coil 11 or the RFID tag 13 in the case of separation, thereby increasing the forgery and copying prevention effect, and also allows the fixing plates 15a, 15b and 17 to be separated. It may have a structure to damage the roof coil 11 or the transponder chip 13 when separated. In addition, it is apparent that the chip fixing surface 19a and the coil fixing groove 19b can be formed in the upper fixing plate and the lower fixing plate 15a and 15b shown in FIG. 4.

In addition, the chip fixing surface 19a also forms a space for accommodating the RFID ID transponder chip 13 as well as a plane (which can be changed depending on the shape of the RFID ID transponder chip 13). (13) This compact disc can be prevented from moving even if it rotates at high speed. This configuration can maintain stable operation.

The compact disc having the RFID ID tag configured as described above may be used in various forms such as an anti-theft, anti-counterfeiting, copy protection exhibition pass or credit card. For example, to prevent theft of expensive compact discs by providing an external device that can read data stored in the RFID ID tag at the store entrance, and searching for and warning the compact discs beyond a certain distance. have.

In addition, a compact disc player (CDP, CD-ROM) is provided with a device capable of reading information embedded in the RFID transponder chip 13 during reproduction or duplication of the compact disc. Allowing or disallowing can prevent duplication. In this case, forgery can be confirmed by storing the same information stored in the RFID transponder chip 13 in the storage area of the compact disc and comparing them with each other.

In addition, when the member registration number is stored in the RFID transponder chip 13, the compact disc can be miniaturized and used in the form of a credit card. At this time, in order to record the change of the member information, it is possible to use a compact disc that can be repeatedly recorded.

In addition, the compact disc of the present invention can be used in the form of a square CD card (1a) as shown in FIG. In other words, the ID of the card stores the unique ID allowed to allow access to the ID tag, and the RFID ID tag attached to the compact disc worn by the spectator passing through the door is retrieved from the ID ID reader for permission. It is determined whether or not they are visitors.

As described above, it is apparent that the present invention can be applied to any product employing a compact disc such as an audio CD, a video CD, a DVD, or a compact disc, regardless of size, and such modifications and variations are within the scope of the present invention. can do.

As described above, according to the present invention, an RFID tag having a unique identifier or special information is embedded in each compact disc to prevent theft when displayed in a store, and to prevent copying or forging data stored on the compact disc. It can be used for various purposes such as using as a pass at exhibitions.

Claims (3)

In applying a compact disk or a compact disk, A loop coil 11 of a shape wound in a circular shape in a non-data storage area 5 around a circular hole 7 formed in the center portion, and electrically connected to both ends of the loop coil 11 and having a unique identifier or other form. It is configured by installing the RFID transponder chip (13) embedded with the special information of the The roof coil 11 and the RFID transponder chip 13 are formed at the center and formed by grooves 19 which are fixed by the fixing plates 15a and 15b separated from the upper and lower portions, or cut into the upper side surface. A compact disc having an RFID tag, which is fixed by the fixing plate 17 from an upper side thereof. The method of claim 1, Compact disc with an RFID tag, characterized in that the chip fixing surface (19a) and the coil fixing groove (19b) is formed on the upper and lower fixing plates (15a, 15b) or the surface of the groove (19). The method according to claim 1 or 2, The upper and lower fixing plate (15a, 15b) and the fixed plate 17 is a compact disc with an RFID tag, characterized in that coupled by ultrasonic fusion, high frequency fusion, vibration fusion or adhesive.