JP4360276B2 - Optical disc having wireless IC tag and optical disc reproducing apparatus - Google Patents

Optical disc having wireless IC tag and optical disc reproducing apparatus Download PDF

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Publication number
JP4360276B2
JP4360276B2 JP2004164730A JP2004164730A JP4360276B2 JP 4360276 B2 JP4360276 B2 JP 4360276B2 JP 2004164730 A JP2004164730 A JP 2004164730A JP 2004164730 A JP2004164730 A JP 2004164730A JP 4360276 B2 JP4360276 B2 JP 4360276B2
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Prior art keywords
ic tag
optical disc
wireless ic
key information
disc
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Expired - Fee Related
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JP2004164730A
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JP2005346820A (en
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雅則 氏野
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船井電機株式会社
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Description

  The present invention relates to an optical disc such as a DVD (Digital Versatile Disc) and a CD (Compact Disc), and an optical disc reproducing apparatus.

  Conventionally, enormous music software, video software, and the like have been widely used as optical disc content. Under such circumstances, as one of the services to the user, it is conceivable that the user of the content of the recording medium such as an optical disc can view the bonus track.

  In a conventional music service, in a system in which music data is purchased through a server system, the previous purchaser's data is recorded on the recording medium and the server system, and when the purchase is made again, the purchaser himself / herself is purchased by the server system. It is known that a new service is provided only to a purchaser who uses a genuinely purchased content by checking the contents of the recording medium (see Patent Document 1). In addition, there is known a service that provides bonus music services by recording bonus music such as karaoke and BGM separately from the original music on a DVD audio disc and permitting playback by interactive data. (See Patent Document 2).

However, in the conventional bonus track service for music, provision of bonus tracks on DVDs, CDs, and the like has a problem of being performed over a network or requiring a dedicated audio decoder. In this case, authentication work such as a special ID number or personal identification number is also required for identity verification, which is very complicated and often unfamiliar to general users. Therefore, it has been desired to provide a bonus track service with a simple configuration and high confidentiality.
JP 2002-330395 A JP 2002-352511 A

  The present invention has been made to solve the above problems, and has a wireless IC tag capable of providing a service for additional content such as a highly sensitive bonus track with a simple configuration. An object is to provide an optical disc and an optical disc reproducing apparatus.

In order to achieve the above object, the invention according to claim 1 is directed to a reader device for reading key information recorded on a wireless IC tag of an optical disk having a wireless IC tag, and content recorded on the disk main body of the optical disk. reproducing means for reproducing, by combining part of the key information read from the wireless IC tag of the plurality of the optical disc by the pre-SL reader device, which can be reproduced by having no optical disk reproducing apparatus reader device of a wireless IC tag Key information generating means for generating combined key information necessary for reproducing additional titles other than titles, and key information for determining whether the combined key information generated by the key information generating means is valid and determination means, only when the combination key information is determined to be valid by the key information determining means, data of the optical disc The additional titles recorded on the disk main body is obtained by a reproduction control means for reproducing by the reproduction means.

A second aspect of the present invention, in the optical disk reproducing apparatus according to claim 1, wherein the reader device, on the central axis of the optical disc, having an antenna for receiving the control information recorded in the radio IC tag Is.

According to the first aspect of the present invention, the optical disc playback apparatus generates key information by combining a part of key information read from the wireless IC tags of a plurality of optical discs, and when the key information is valid. As long as the title can be played back by an optical disk playback device that does not have a wireless IC tag reader device, additional titles can be played back. Accordingly, an additional title can be reproduced with key information generated from a combination of a plurality of key information read from the wireless IC tags of the plurality of optical disks. Therefore, by applying this key information, it is possible to reproduce the titles of other optical discs other than the plurality of optical discs, and it is possible to perform selective services such as specifying optical discs to be serviced, thereby expanding the range of services. be able to.

According to the second aspect of the invention, the antenna for the wireless IC tag formed on the circumference of the optical disk has the same direction along the center axis of the disk even when the optical disk rotates. By providing the antenna in the reader device on the central axis, stable transmission / reception with less fluctuation of radio waves can be realized in transmission / reception of data recorded in the wireless IC tag.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an optical disc 2 (hereinafter abbreviated as an optical disc) having a wireless IC tag 3 and an optical disc playback apparatus 1 with a radio IC tag reader (hereinafter abbreviated as an optical disc playback device) according to the present embodiment. The optical disk reproducing device 1 has a built-in wireless IC tag reader device 5. The surface of the optical disk 2 is formed with a wireless IC tag 3 and a circular shape on the surface of the optical disk connected to the wireless IC tag 3. An antenna 4 is provided.

  FIG. 2 shows an electric block diagram of the optical disc reproducing apparatus 1. In this figure, when the optical disc 2 having the wireless IC tag 3 is inserted into the optical disc reproducing apparatus 1, the disc management information recorded on the wireless IC tag 3 attached to the optical disc 2 is in the vicinity of the wireless IC tag 3. The wireless IC tag reader device (hereinafter abbreviated as a reader device) 5 is used for reading through wireless communication. An antenna (not shown) in the reader device 5 is arranged in parallel with the surface of the optical disc 2 so that the center of the antenna is spatially on the central axis of the disc of the optical disc 2 in order to increase transmission / reception sensitivity. Has been. The disc management information read by the reader device 5 is sent from the reader device 5 to the overall control unit 10. Further, the disc management information recorded on the innermost circumference of the disc main body 21 (see FIG. 3A) of the optical disc 2 is sent to the overall control unit 10 via the optical pickup 6 and the signal processing unit 7. Using the disc management information, the overall control unit 10 starts the reproduction operation of the content in the optical disc 2, reads the information recorded in the optical disc 2, and reproduces the content. The signal processing unit 7 controls the servo control unit 8 by generating a focus control signal and a tracking control signal based on the RF signal from the optical pickup 6 amplified by the RF amplification unit 12. The information reproducing unit 9 is a decoder that reproduces video and audio information from the RF signal. In addition to the above functions, the overall control unit 10 includes a spindle motor 13, a moving motor unit 15, a laser driving unit 14, a signal processing unit 7, a servo control unit 8, an information reproducing unit 9, and a memory that stores information necessary for control. 11 etc. are controlled and the whole apparatus is controlled.

  3A and 3B are diagrams for explaining the relationship among the disk main body 21, the wireless IC tag 3, the antenna 4 and the like in the optical disk 2. FIG. In FIG. 3A, the disk main body 21 of the optical disk 2 shows the structure of a two-layer disk here, 22a and 22b are substrates provided on both sides of the disk main body 21, and 24a and 24b are two-layered disks. A recording layer 23 is a space layer provided between the recording layers 24a and 24b. A center hole 25 is provided at the center of the disc main body 21, and a clamping area 26 is not used for recording in the disc main body 21. The wireless IC tag 3 may be placed anywhere on the label surface 27 opposite to the recording surface 28 irradiated with the laser light, but here is mounted on the clamping area 26 surface. The antenna 4 may be disposed anywhere on the label surface 27, but is disposed on the clamping area 26 here. The antenna 4 and the wireless IC tag 3 are electrically connected, and the wireless IC tag 3 transmits and receives information via the antenna 4. Although the wireless IC tag 3 is attached to the surface of the label surface 27, it can be embedded in the disk main body 21, for example, in the substrate 22a, and the antenna 4 can be embedded in the same manner.

  FIG. 3B is a plan view of the optical disc 2 shown in FIG. The antenna 4 in the figure may be formed by printing a metal on the surface. Further, since the antenna 4 is formed on the circumference, even if the optical disk 2 rotates, the direction of radio wave radiation is the same along the disk central axis. By providing the internal antenna (not shown), stable transmission / reception with less fluctuation of radio waves can be realized in transmission / reception of data recorded in the wireless IC tag 3.

  Next, with reference to FIGS. 4A and 4B, the relationship between the wireless IC tag 3 in which the disk management information is recorded and the disk body 21 in the optical disk 2 provided with the wireless IC tag 3 will be described. . FIG. 4A shows a conventional optical disc 102 in which disc management information necessary for content playback control is recorded on the innermost track 129 (the line hatched portion in FIG. 4A). A conventional optical disc reproducing apparatus first reads the disc management information and reproduces content using the disc management information. Accordingly, the content cannot be reproduced without this disc management information.

  FIG. 4B shows the optical disc 2 provided with the wireless IC tag 3 of the present invention. The innermost track 29 of the optical disc 2 (the point hatched portion in FIG. 3B, the track surface is the back side of the paper surface) ) Does not include part or all of the disc management information necessary for controlling the reproduction of the content, and part or all of the disc management information is recorded in the wireless IC tag 3. That is, even if the optical disc 2 having the wireless IC tag 3 according to the present embodiment is to be played back by an optical disc playback device that does not have a conventional wireless IC tag reader device, the optical disc 2 contains part or all of the disc management information. Therefore, some or all of the titles stored on the optical disc 2 cannot be reproduced.

  Next, an optical disc and an optical disc reproducing apparatus according to another embodiment of the present invention will be described with reference to FIG. In the figure, a plurality of optical disks 2a, 2b, 2c are equipped with wireless IC tags 2a, 2b, 2c and antennas 4a, 4b, 4c, respectively. Now, when the optical discs 2a and 2b including different key information are inserted into the optical disc playback apparatus 1 with the wireless IC tag reader, key information is received from the wireless IC tags 3a and 3b of the optical discs 2a and 2b by the reader device 5. It is read out and new key information is generated by combining these key information. Using this key information, a title in the optical disc 3a that cannot be played back by an optical disc playback device without a conventional wireless IC tag is played back by the optical disc playback device 1 with a wireless IC tag reader. Therefore, the user who owns the optical discs 2a and 2b can receive a service for new contents (additional titles) when purchasing these optical discs 2c.

  A specific example of the above embodiment will be described. If you have a single CD A and a single CD B with a music CD with a radio IC tag, record each key information in the radio IC tag of each of the single CD A and single CD B. Two key information extracted from the single board A and the single board B is read, and new key information is generated by combining them. Using this new key information, playback of special music software (for example, the 13th song of the album) built in the third music CD (for example, another album with a wireless IC tag) Enable. As described above, the optical disc playback apparatus 1 with the wireless IC tag reader can provide the user with a privilege that provides additional content services while maintaining compatibility with the optical disc playback apparatus that does not have the wireless IC tag reader. Therefore, it can contribute to the demand promotion of the player with the wireless IC tag function.

  As described above, according to the optical IC tag-equipped optical disc 2 and the radio IC tag reader-equipped optical disc playback apparatus 1 according to the present embodiment, control information necessary for controlling playback of a part or all of the titles in disc management information. Is recorded not on the optical disc 2 but on the wireless IC tag 3, and this control information is read by the reader device 5 dedicated to the wireless IC tag 3. With this configuration, a title that cannot be played back by an optical disc playback device that does not include a conventional wireless IC tag reader device can be played back using information read from the wireless IC tag 3. As a result, it is possible to provide an additional content service that cannot be played back by a conventional optical disc playback apparatus. That is, only a user who has an optical disk playback device with a wireless IC tag reader can receive a new content service. Also, since this content playback does not require a complicated configuration such as special personal authentication work or a dedicated AV decoder, it is possible to provide additional content services with a simple configuration. Become. Also, the level of services such as the number of content titles can be freely changed and provided.

  Also, since part or all of the disc management information is recorded on the wireless IC tag, not the disc body, even if the contents of the disc body are illegally copied in some way, the wireless IC tag 3 The disk management information is not copied. Therefore, since the copy destination disc has at least a part of the disc management information, and the content recorded on the optical disc can be reproduced at least in part, the confidentiality is kept high.

  In addition, this invention is not restricted to the said embodiment, Various deformation | transformation are possible. As described above, it is possible to newly generate key information using the key information of the two optical discs 2a and 2b, and to play a special title in the third optical disc 2c. However, for example, the number of optical disks may be four or more, and each key information is not limited to one, and may be plural.

  Further, for example, in the above-described embodiment, the wireless IC tag 3 and the antenna 4 are mounted on the surface of the clamping area 26 of the label surface 27, but may be mounted anywhere on the label surface 27. Further, the wireless IC tag 3 may be embedded in the vicinity of the label surface 27 in the substrate 22a of the disc body 21. In this case, the wireless IC tag 3 is protected by the substrate 22a, and is not easily removed, and the wireless IC tag 3 can be mounted substantially safely and reliably. Furthermore, the shape of the antenna 4 is not necessarily circular, but may be a polygonal shape or the like as long as it is formed symmetrically with respect to the center of the optical disc 2. Also, the antenna in the reader device on the optical disk playback device side, like the antenna in the wireless IC tag, can be configured with a circular or polygonal shape symmetrically on the central axis of the optical disk, thereby improving the transmission / reception sensitivity and making it more stable. The device can be controlled.

  Further, by separately encrypting the disc management information recorded in the wireless IC tag, strong copy protection can be performed. Furthermore, it is also possible to add a new service by recording information other than the disc management information as information to be recorded in the IC tag.

1 is an external view of an optical disc having a wireless IC tag and an optical disc playback apparatus according to an embodiment of the present invention. FIG. 2 is an electrical block diagram of the optical disc playback apparatus. (a), (b) is the perspective view and top view of the said optical disk, respectively. (a), (b) is explanatory drawing of the storage place of the disc management information in the conventional optical disc and the said optical disc, respectively. FIG. 6 is an external view of an optical disc having a wireless IC tag and an optical disc playback apparatus according to another embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical disk reproducing device with a wireless IC tag reader 2 Optical disk having a wireless IC tag 3 Wireless IC tag 4 Antenna 5 Wireless IC tag reader device 10 Overall control unit 21 Disc body 26 Clamping area 27 Label surface 28 Recording surface 29 Innermost track 22a, 22b disk substrate

Claims (2)

  1. A reader device for reading key information recorded on the wireless IC tag of an optical disc having a wireless IC tag;
    Playback means for playing back the content recorded on the disc body of the optical disc ;
    By combining a part of the pre-Symbol key information read from the wireless IC tag of the plurality of the optical disc by a reader device, except playable titles no optical disk reproducing apparatus reader device of a wireless IC tag, additional Key information generating means for generating combination key information necessary for reproducing the title ;
    Key information determination means for determining whether or not the combination key information generated by the key information generation means is valid ;
    Reproduction control means for controlling the reproduction means to reproduce the additional title recorded on the disc body of the optical disk only when the combination key information is determined to be valid by the key information determination means. optical disk reproducing apparatus characterized by comprising and.
  2. 2. The optical disc reproducing apparatus according to claim 1 , wherein the reader device has an antenna for receiving control information recorded in the wireless IC tag on a central axis of the optical disc.
JP2004164730A 2004-06-02 2004-06-02 Optical disc having wireless IC tag and optical disc reproducing apparatus Expired - Fee Related JP4360276B2 (en)

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JP2004164730A JP4360276B2 (en) 2004-06-02 2004-06-02 Optical disc having wireless IC tag and optical disc reproducing apparatus
US11/137,489 US7317396B2 (en) 2004-05-26 2005-05-26 Optical disc having RFID tag, optical disc apparatus, and system for preventing unauthorized copying

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CN204189963U (en) 2011-07-19 2015-03-04 株式会社村田制作所 The antenna apparatus and a communication terminal apparatus
WO2013035821A1 (en) 2011-09-09 2013-03-14 株式会社村田製作所 Antenna device and wireless device
JP5344108B1 (en) 2011-12-01 2013-11-20 株式会社村田製作所 Wireless IC device and manufacturing method thereof
EP2688145A1 (en) 2012-01-30 2014-01-22 Murata Manufacturing Co., Ltd. Wireless ic device
WO2013125610A1 (en) 2012-02-24 2013-08-29 株式会社村田製作所 Antenna device and wireless communication device
JP5304975B1 (en) 2012-04-13 2013-10-02 株式会社村田製作所 RFID tag inspection method and inspection apparatus

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