JP2003058850A - Information recording medium and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To write or read out data in/from an information recording medium in a non-contact state from the outside of a case, a package or the like even when the recording medium is covered with the case or the like as to an information recording medium such as a CD and a DVD for writing data by a laser beam or the like. SOLUTION: The information recording medium such as a CD and a DVD constituted of laminating a resin member and a metallic film is provided with an antenna part 21 formed by surrounding a metallic member around it, a storage part for storing data and an I/O part connected to the antenna part 21 and capable of inputting/outputting an electric signal generated in the antenna part 21 to/from the storage part as data. The storage part and the I/O part are constituted as an integrated IC chip.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording medium such as a CD and a DVD, which is formed by laminating a resin member and a metal film, and a manufacturing method thereof.

[0002]

2. Description of the Related Art Conventionally, there are CDs and DVDs as information recording media on which contents such as video, audio, character data, and programs are recorded, and these CDs and DVDs are formed by laminating a resin member and a metal film. It is generally done. That is, in general CDs and DVDs, a reflective layer formed of a metal film such as aluminum or a recording layer formed of an organic dye is laminated on a substrate made of a resin such as polycarbonate, and the polycarbonate is formed on these. It is configured by stacking protective layers formed of resin such as.

In such a conventional information recording medium, data is recorded by irradiating a laser from the substrate side to change the organic dye in the recording layer, and irradiating a laser from the substrate side from the reflective layer. Data is read by reading the reflected light of.

[0004]

However, as described above, in the conventional information recording medium, the data is recorded by directly irradiating the information recording medium with the laser. Therefore, for example, the information recording is performed. When the medium is stored in the case and wrapped with vinyl, etc.,
There was a problem that data could not be recorded / played back.

In particular, in recent years, the information recording medium produced by a maker such as a content producing company reaches the final consumer through a complicated distribution channel.
There is a request to record the management information at each distribution stage on the information recording medium.

The present invention is intended to solve such a problem, and in an information recording medium in which a resin member and a metal film are laminated and data is written by a laser or the like, the information recording medium is covered with a case, a packaging or the like. It is an object of the present invention to provide an information recording medium and a method for manufacturing the same that allow data to be written in and read from the outside of a case or the like in a contactless manner even in the opened state.

[0007]

In order to solve the above problems, the present invention provides an information recording medium having a resin member and a metal film laminated, and an antenna portion formed by winding a metal member. And a storage unit that stores data, and an input / output unit that is connected to the antenna unit and that inputs / outputs an electric signal generated in the antenna unit as data to the storage unit.

According to such an invention, it is possible to write and read data to and from the storage portion in a contactless manner by the radio waves input to and output from the antenna portion, so that the information recording medium is housed in, for example, a case. Data can be input / output to / from the information recording medium even when it is wrapped in vinyl.

In the present invention, it is preferable that the storage unit and the input / output unit are integrated into an IC chip, and the IC chip and the antenna unit are attached to the surface of the information recording medium. In this case, it is conventional
The information recording medium of the present invention can be realized only by attaching the IC chip and the antenna to the surface of the information recording medium such as a CD or a DVD.

Further, in the present invention, the storage section and the input / output section which are made into an IC chip are attached to the surface of the information recording medium, and the antenna section is arranged in the layer in which the metal film is laminated, A connection part may be provided between the IC chip attached to the surface and the antenna part arranged in the layer to electrically connect them. In this case, since the antenna part is formed in a layer in which a metal film such as a reflection layer is laminated, the antenna part can be formed at the same time when other components (reflection layer, etc.) are formed, and the number of manufacturing steps is reduced. Therefore, the manufacturing cost can be reduced.

Further, in the present invention, the IC chip is
The IC chip is attached to the surface of the information recording medium, a part of the antenna part is arranged in a layer in which the metal film is laminated, and the other part is arranged on the surface of the information recording medium. A connection part may be provided between the antenna part and the antenna part for electrically connecting them. In this case, the antenna part can be made to circulate from the surface of the information recording medium to the inside thereof, so that a coiled antenna part having a large number of windings can be formed.

The connecting portion preferably includes a connecting hole formed by penetrating the resin member or the metal film, and a conductive member disposed in the connecting hole. According to this, the antenna part wired on the front and back of the information recording medium can be electrically connected through the connection hole penetrating the information recording medium, so that the total length of the antenna part can be increased.

Further, it is preferable that the IC chip and the connection hole are arranged so that the center of gravity of the information recording medium is located at the rotation center of the information recording medium. IC
By attaching the chip, the center of gravity is moved by the weight of the IC chip, but by forming the connection hole, the weight of the cross-section defect is reduced.
The weight of the chip can be offset by the weight of the cross-sectional defect, the center of gravity of the information recording medium can be positioned at the center of rotation (center of gravity), and stable rotation of the information recording medium can be ensured.

In the information recording medium, a step of forming a groove portion having the same shape as the antenna portion on the resin member,
It is preferable to manufacture by a manufacturing method including a step of forming a metal film on the surface of the resin member including the groove portion and a step of scraping off the metal film in the vicinity of the groove portion while leaving the metal film in the groove portion.

In this case, since the antenna portion can be formed at the same time as the formation of the metal film such as the reflection layer, the manufacturing cost can be reduced. In particular, since the metal material is made to flow into the groove to form the antenna portion, the antenna portion can be easily formed even in a complicated shape such as a spiral shape.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION [Basic Configuration of Information Recording Medium] An embodiment of the information recording medium according to the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of an information recording medium according to the present embodiment, (a) is an external perspective view showing the basic configuration of the information recording medium 1, and (b) is a recording / reproducing device 141.
It is a block diagram showing the internal structure of.

The information recording medium 1 according to the present embodiment is a disc-shaped member formed by laminating a resin member and a metal film, and is a substrate made of a resin such as polycarbonate such as CD and DVD. A reflective layer formed by vapor-depositing a metal film such as aluminum or a recording layer formed of an organic dye is laminated on top, and a protective layer formed of a resin such as polycarbonate is laminated on these. Thus, the light beam can record and hold contents including video, audio, character data, programs, and the like.

Then, the information recording medium 1 according to the present embodiment.
As shown in FIG. 1A, has a content recording section 3 for recording content and a management data recording section 2 for recording management data. The content recording section 3 is an area for irradiating the reflective layer with a light beam to write and read data. On the other hand, the management data recording unit 2 is composed of an IC chip 22 provided near the center of the disc body (inside the content recording unit 3) and an antenna unit 21,
In the IC chip 22, a data storage unit configured by a storage element such as a memory, a data input / output unit that inputs / outputs management data to / from the data storage unit, and management data input / output by the data input / output unit are stored. A data transmission / reception unit that transmits and receives via radio waves is provided.

In this embodiment, the antenna portion 21 is a coil formed by winding a metal member such as aluminum around the opening 1b at the center of the disk body, and an IC chip is formed on the circumference of the antenna portion 21. 22 are arranged. When an electromagnetic wave is input, the antenna section 21 generates a current due to electromagnetic induction, and the management data I
It is recorded in the storage unit in the C chip 22.

According to the information recording medium 1 according to the present embodiment as described above, it is possible to write and read data to and from the storage portion in a contactless manner by the radio waves input to and output from the antenna portion 21. Even when the recording medium 1 is housed in a case or wrapped with vinyl, data can be input / output to / from the information recording medium.

[Mode of Management Data Recording Unit] (Mode 1) An embodiment of the management data recording unit 2 will be described in more detail. FIG. 2 shows a first form of the information recording medium 1 according to the present embodiment. In the figure, (a) is a top view of the information recording medium, and (b) is
FIG. 7A is an enlarged view showing the vicinity of the center of the information recording medium shown in FIG.
[FIG. 6] is an enlarged view showing the periphery of the IC chip of the management data recording unit shown in FIG.

As shown in FIGS. 1A to 1C, the management data recording section 2 is arranged in the central portion (inner area of the content recording section 3) 1a of the disc-shaped information recording medium 1. The IC chip 22 and the antenna section 21 are attached to the surface (label side) of the information recording medium 1.

In the first embodiment, the antenna portion 21 is spirally wound around the opening 1b provided in the central portion 1a of the recording medium 1, and both end portions 23 and 23 of the antenna portion 21 are ICs.
Each of them is connected to the data input / output unit of the chip 22. At this time, since the antenna portion 21 is spirally wound, as shown in FIG.
Are arranged so as to straddle the antenna part 21 in the middle thereof. In the present embodiment, the antenna part 21 and the metal film of the reflection layer are arranged so as not to overlap in the stacking direction, and the reflection layer does not affect the radio wave reception in the antenna part 21. ing.

According to the management data recording unit according to the first embodiment, since the antenna unit 21 and the IC chip 22 are attached to the surface of the information recording medium 1, the existing C
On the surface of an information recording medium such as a D or a DVD, an antenna portion or I
By sticking the C chip, the information recording medium of Embodiment 1 can be manufactured.

(Mode 2) Next, another mode of the management data recording unit 2 will be described. 3A is an enlarged view showing the vicinity of the central portion of the information recording medium in an enlarged manner, and FIG.
FIG. 7 is an enlarged view showing the periphery of the management data recording section shown in FIG. 4 is a sectional view of the information recording medium according to the second embodiment.

As shown in FIGS. 3A, 3B and 4, in the second embodiment, the IC chip 22 is the information recording medium 1
The antenna part 21 is attached to the surface (label side) of the above, and the antenna part 21 is arranged on the substrate 11 on which the metal film inside the information recording medium 1 is laminated. That is, the information recording medium 1 includes the substrate 11
There is a reflection layer and an antenna portion 21 formed by vapor-depositing a metal film on the top, the reflection layer and the antenna portion 21 are formed, and the protective layer 12 is formed on the reflection layer and the antenna portion 21.
And the IC chip 22 is attached to the upper surface of the protective layer 12.

As shown in FIG. 4, in this mode 2, the IC chip 22 attached to the surface of the protective layer 12,
Between the antenna part 21 arranged on the substrate 11, there are provided connection parts 24, 24 which penetrate the protective layer 12 and electrically connect the IC chip 22 and the antenna part 21. The connecting portion 24 includes a connecting hole 24c formed by penetrating the protective layer 12, a conductive member 25 provided on the inner wall surface of the connecting hole 24c, and an IC chip 22 on the surface of the protective layer 12. It is composed of a joint portion 26 that electrically connects the conductive member 25 and a joint portion 27 that electrically connects the conductive member 25 and the antenna portion 21 on the substrate 11.

According to the management data recording section of the second aspect, since the antenna section 21 is arranged between the substrate 11 and the protective layer 12, the antenna section 21 is protected by the protective layer 12. It is possible to prevent the antenna part 21 from being damaged. Further, according to this mode 2, the antenna unit 2
Since 1 and the reflective layer can be collectively deposited on the substrate, the manufacturing process of the information recording medium can be omitted,
The manufacturing cost can be reduced.

As a modified example of this mode 2, FIG.
As shown, the antenna section 21 can be attached to the lower surface of the information recording medium 1.

(Mode 3) Further, as a mode of the management data recording section, ones as shown in FIGS. 6 and 7 can be adopted. 6A is an enlarged view showing the vicinity of the central portion of the information recording medium in an enlarged manner, and FIG. 6B is an enlarged view showing the periphery of the management data recording portion shown in FIG. is there. FIG. 7 is a sectional view of the information recording medium according to the third embodiment.

In the third embodiment, the IC chip 22 is attached to the surface (label side) of the information recording medium 1 and the antenna section 2
A part 21b of No. 1 is arranged on the back surface (recording surface side) of the information recording medium 1, and another part 21a is arranged on the front surface (label side) of the information recording medium 1. Further, connection parts 23 and 24a for electrically connecting the IC chip 22 and the antenna parts 21a and 21b are provided.

The connecting portion 23 is solder or the like for joining the end of the antenna portion 21b arranged on the label side to the IC chip 22. The connecting portion 24a is the connecting portion 24 described above.
Similarly, the connection hole 24c formed by penetrating the information recording medium 1, the conductive member 25 provided on the inner wall surface of the connection hole 24c, and the IC chip 2 on the surface of the protective layer 12 are formed.
2 for electrically connecting the conductive member 25 with the conductive member 25.
And a joint portion 27 that electrically connects the conductive member 25 and the antenna portion 21 on the lower surface of the substrate 11.

Further, in the third embodiment, the IC chip 22
In the connection portion 24b on the opposite side of the opening 1b with respect to the position of, the antenna portion 21 has the information recording medium 1
Has moved from the front side to the back side. This connecting portion 24b is
Connection hole 24c formed by penetrating the information recording medium 1
And the conductive member 25 disposed on the inner wall surface of the connection hole 24c
And a joint portion 28 that electrically connects the antenna portion 21a and the conductive member 25 on the surface of the protective layer 12, and the substrate 1
On the lower surface of 1, the conductive member 25 and the joint portion 29 that electrically connects the antenna portion 21 are formed.

Since the antenna section 21 is a coil, there is no problem that the antenna section 21 laps around itself in an overlapping manner. Therefore, as shown in FIG. 8, the antenna section 21 is duplicated inside and outside the information recording medium 1. It may be configured to be wound.

According to the management data recording section of the third embodiment, since the antenna section 21 can be circulated from the front surface to the back surface of the information recording medium 1, a coiled antenna section having a large number of windings can be used. Can be formed, and transmission and reception of radio waves can be ensured.

(Mode 4) As an application example of mode 3,
It is also possible to adopt the form 4 as shown in FIG. Specifically, in the fourth embodiment, as shown in FIG. 9, the IC chip 22 is attached to the surface (label side) of the information recording medium 1 and the part 21b of the antenna portion 21 is attached to the information recording medium 1. It is arranged on the back surface (recording surface side), and the other portion 21a is arranged on the front surface (label side) of the information recording medium 1. In detail,
The antenna part 21 has both ends connected to the joint parts 31, 31 of the IC chip 22, and in the middle thereof, from the label side of the information recording medium 1 to the connection part 30a,
It is transferred to the back surface of the information recording medium 1 through 30b.

Like the above-mentioned connecting portion 24, the connecting portions 30a and 30b are formed by disposing a conductive member on the inner wall surface of the connecting hole formed by penetrating the information recording medium 1. Therefore, the bonding portion electrically connects the antenna portion 21a and the conductive member on the surface of the protective layer, and electrically connects the conductive member and the antenna portion 21b on the lower surface of the substrate.

In the form 4, the information recording medium 1
So that the center of gravity of is located at the center of rotation of the information recording medium 1,
The IC chip 22 and the connection holes 30a and 30b are arranged. More specifically, since the IC chip 22 is attached at a position deviated from the center position of the information recording medium 1, I
The center of gravity of the information recording medium 2 is biased by the weight of the C chip 22. On the other hand, since the connecting portions 30a and 30b have the connecting holes penetrating the information recording medium 1, the cross section is cut off by the amount of the connecting holes, and the weight is reduced by the amount of the missing portion. There is. Therefore, I
The weight increased by the C-tip 22 is increased by the connecting portion 30a,
The center of gravity of the entire information recording medium 1 is located at the centroid (center of rotation) of the information recording medium 1 by offsetting by the weight of the cross-section defect in 30b.

That is, as shown in FIG. 9A, the position of the center of gravity of the IC chip 22 and the center of the information recording medium 1 (center of the figure)
When the diameter passing through is represented by the one-dot chain line xx, the connecting portion 30
The a and 30b are arranged at positions that are line-symmetric with respect to xx, and at positions where the weight of the IC chip 22 and the moment due to the loss of the cross section are zero. In detail,
Let ya and yb be the perpendiculars from the respective connection portions 30a and 30b to xx, and at the position where ya = yb, the weight of the IC chip is wi, and the total weight loss due to the connection portions 30a and 30b is wab. And the respective distances in the xx direction from the center of the division recording medium 1 are x1 and x2, the division recording medium 1 is arranged at a position of wi × x1 = wab × x2.

According to the management data recording section of the fourth aspect, the center of gravity of the information recording medium 1 and the centroid of the information recording medium 1 can be matched to stabilize the rotation of the information recording medium 1 during recording and reproduction. .

[Manufacturing Method of Information Recording Medium] The above information recording medium is preferably manufactured by the following procedure. FIG. 10 is an explanatory view showing the method of manufacturing the information recording medium according to the present embodiment. Incidentally, this information recording medium 1
Is based on the premise that a reflective layer is formed by vapor-depositing a metal film of aluminum or the like on a substrate, and then a protective layer is laminated on the reflective layer.

In the present embodiment, when forming such a reflection layer, as shown in FIG. 10A, a groove portion 50 having the same shape as the antenna portion 21 is formed in the portion where the antenna portion 21 is formed on the upper surface of the substrate 11. To form. The groove 50 is formed on the substrate 11
May be formed at the time of forming, or may be formed by cutting after the substrate 11 is formed.

After that, a metal film 51 of aluminum or the like is vapor-deposited on the upper surface of the substrate 11 in which the groove 50 is formed. By this vapor deposition of aluminum, a metal film is formed on the upper surface of the substrate 11 and the inner surface of the groove portion 50. Then, FIG.
As shown in (b), the metal film 51b in the vicinity 1a of the groove 50 is removed while leaving the metal film 51 in the groove 50. The metal film left in the groove portion 50 becomes the antenna portion 21 as it is. At this time, the portion of the metal film 51a to be the reflection layer 3
Are also left on the surface of the resin member 11.

According to the method of manufacturing the information recording medium according to the present embodiment as described above, the antenna part 21 can be formed at the same time when the reflective layer is formed, so that the manufacturing cost can be reduced. In particular, since the metal material is made to flow into the groove portion 50 to form the antenna portion 21, even a complicated shape such as a spiral shape can be easily formed.

[Distribution Management System Using Information Recording Medium] (Overall Structure of Distribution Management System) A distribution management system using the information recording medium 1 having the above-described structure will be described with reference to the drawings. FIG. 11 is a block diagram showing a schematic configuration of the distribution management system according to this embodiment.

The distribution management system manages the distribution of the information recording medium 1 such as a CD or a DVD to the user 104 through the distribution stage from the content providing company 101 to the sales store 102 and the rental store 103. Yes, specifically, it is installed in the store 102 or the rental store 103,
The identifier recording means 121 or 131 for recording the distribution stage identification ID for identifying each distribution stage on the information recording medium 1, the recording / reproducing device 141 for reproducing the information recording medium 1, and the operation of the recording / reproducing device 141 are controlled. And a distribution management server 106 that charges the usage of the user 104.

The content providing company 101 is a record company, a distribution company or the like, and the produced information recording medium 1
Are sold to the store 102. Store 102
Pays the price of the purchased information recording medium 1 to the content providing company 101.

The store 102 is a content providing company 10.
It is a retail store that sells the information recording medium 1 purchased from item 1. The rental shop 103 pays the price to the shop 102 to purchase the information recording medium 1 from the shop 102,
A person who lends the information recording medium 1 to the user 104. Each time the user 104 rents the information recording medium 1 from the rental shop 103, the user 104 pays the rental price to the rental shop 103 and returns the borrowed information recording medium 1 within the lending period.

The user 104 is a person who reproduces the information recording medium 1 borrowed from the rental shop 103 by the recording / reproducing device 141 and views it. At this time, the user 104
Of the contents recorded on the information recording medium 1, only the contents desired to be viewed are selected and reproduced. The recording / playback device 141 is configured to display the title of the selected content and various I
By transmitting D, the distribution management server 106 is requested for the key information necessary for reproducing the selected content.

The distribution management server 106 is the user 104.
The recording / playback device 141 used by the user is connected to the recording / playback device 141 via a communication network such as the Internet. The key information 105 is provided to the recording / playback device 141 through the network, and the accounting information for each user is managed. Further, the distribution management server 106 is affiliated with the fee collection company 107, and collects the fee from the fee collection company 107 according to the billing information of the user 104. The fee collection company 107 is, for example, a card company or a bank, and is an institution that can collect the content price from the user 104.

Further, in the present embodiment, the distribution management server 106 is connected to the content providing company 101 through the communication network, and the content providing company 101
It is possible to receive distribution of the key information 105 from. Further, the distribution management server 106 uses the user 104
Part of the content price collected by charging
It has a function of paying to the content providing company 101 and the store 102.

(Structure of Distribution Management Server) In the present embodiment, the distribution management server 106 includes the user database 161, the key information transmitting means 162, and the identifier receiving means 1.
63, encryption means 164, and key information acquisition means 165
And a user management means 166 and a charge management means 167. The distribution management server 106 may be a single server computer, or each of the means 161 to 167 may be a separate server and may be composed of a plurality of server groups.

The user database 161 stores management information for managing each user, and stores key information, a recording / playback device ID (playback device identifier), and a store ID for each user. ing. In the present embodiment, the user database 161 also stores communication history, personal information, billing information, etc. for each user.

The key information transmitting means 162 is connected to a recording / reproducing apparatus used by each user via a communication network, and distributes the key information 105 to the recording / reproducing apparatus 141 by packet communication or the like. Here, the key information 105 controls the operation of the recording / reproducing apparatus, and in the present embodiment, it is set for each content and permits only the reproduction of the set content.

The identifier receiving means 163 is connected to each recording / reproducing device 141 through a communication network,
It receives a store ID and a recording / reproducing device ID transmitted from the recording / reproducing device 141. Each ID received by the identifier receiving means 163 is stored in the user database 161 via the user management means 166.

The encryption means 164 is for encrypting the key information 5 distributed to the user, and in the present embodiment, the key information 1 acquired from the content providing company 101.
05 is combined with the recording / reproducing device ID received from the recording / reproducing device 141 to perform encryption. As a result, only the recording / reproducing apparatus 141 that has transmitted the recording / reproducing apparatus ID can decrypt the encrypted key information 105.

The key information acquisition unit 165 is connected to each content providing company 101 through a communication line or the like, and requests the content providing company 101 to provide the key information 105 based on an instruction from the user management means 166. The key information 105 distributed in response to this request is acquired. The key information 105 acquired by the key information acquisition unit 165 is stored in the user database 16 through the user management means 166.
1 and is transmitted to the recording / reproducing apparatus 141 via the key information transmitting means 162.

The user management means 166 includes the respective means 163.
To 165, and analyzes the identifier received by the identifier receiving unit 163, and the key information acquisition unit 1
For example, an instruction to obtain key information is given to 65. The user management unit 166 also manages the input / output of data to / from the user database 161.

The charge management means 167 charges the user for the content fee according to the quantity of the key information 105 provided to the user, and the key information transmitting means 1
In response to the transmission of the key information 105 by 62, the billing information for the user is generated and stored in the user database 161. Further, the charging management means 167 collates the charging information in the user database 161 every predetermined period to total the content price for each user, and pays the price to the fee collection company 107 according to the result of the total. Request. In response to this request, the fee collection company 107 pays the price and requests the user to pay the fee.

(Structure of Recording / Reproducing Device) In the information recording medium 1 according to the present embodiment, data is written and read by the recording / reproducing device 141 as shown in FIG. FIG. 1B is a block diagram showing the internal structure of the recording / reproducing apparatus according to the present embodiment.

As shown in the figure, the recording / reproducing apparatus 141 is specifically, a management data transmitting / receiving circuit 141a, a management data recording / reproducing circuit 141b, and a reproducing pickup 1
41c, a signal reproduction circuit 141d, and a management data reproduction circuit 141e.

The management data transmission / reception circuit 141a transmits / receives management data to / from an external device. In this embodiment, the management data transmission / reception circuit 42a has a memory unit for storing and holding a recording / reproducing apparatus ID for identifying the reproducing apparatus, and recording / reproducing the management data when transmitting the management data to the outside. It has a function of adding a device ID and transmitting it.

The management data recording / reproducing circuit 141b reads / writes data from / to the management data recording section 2 of the information recording medium 1. Specifically, the management data recording / reproducing circuit 141b records the management data in a contactless manner with respect to the management data recording unit 2 of the information recording medium 1 by transmitting and receiving the management data via radio waves. That is, the management data recording / reproducing circuit 141b generates an electromagnetic wave to generate a current due to electromagnetic induction in the antenna section 21 of the information recording medium 1, supplies power to the IC chip 22, and at the same time, the IC chip uses an electric signal. Data is input / output to / from 22.

The reproducing pickup 141c is means for reading data from the information recording medium 1 by using a light beam. Specifically, the data is read from the content recording unit 3 of the information recording medium 1.

The signal reproducing circuit 141d is a reproducing means for reproducing the contents read by the recording / reproducing pickup 141c as video and audio.

The management data reproducing circuit 141e reproduces the management data recorded on the information recording medium 1.
The management data read by the management data recording / reproducing circuit 141b is acquired and sent to the management data transmitting / receiving circuit 141a, or the key information 5 included in the management data is reproduced by the signal reproducing circuit 14.
It is sent to 1d.

(Structure of Distribution Stage Management Device) The distribution stage management devices 121 and 131 distribute the information recording medium at each distribution stage (in this embodiment, the store 102 and the rental store 1).
03), for example, a store 1
02 and rental store 103 are used in the store. Specifically, the distribution stage management devices 121 and 131 include a memory for storing a store ID and a rental store ID, and I
A recording / reproducing pickup for recording D on the information recording medium 1 or for reading a title name etc. recorded on the information recording medium 1, and a title name etc. holding and recording means for recording and holding the read title name etc. ing.

The recording / reproducing pickup is a means for reading and writing management data such as a store ID with respect to the management data recording section 2 of the information recording medium 1 by a light beam. The recording / reproducing pickup according to the present embodiment also erases the data already recorded in the management data recording unit 2 as necessary.

Further, the distribution stage management device 121 or 131
Is a memory for storing a store ID and a rental store ID,
A management data recording / reproducing circuit for recording the store ID on the information recording medium 1 and reading the title name etc. recorded on the information recording medium 1, and a title name etc. holding and recording means for recording and holding the read title name etc. It has and.

The management data recording / reproducing circuit reads / writes data from / to the management data recording section 2. Specifically, this management data recording / reproducing circuit, by transmitting and receiving management data via radio waves,
Management data is recorded and read out from the management data recording unit 2 of the information recording medium 1 in a contactless manner. That is, the management data recording / reproducing circuit generates an electromagnetic wave to generate a current due to electromagnetic induction in the antenna section 21 of the information recording medium 1 to supply power to the IC chip 22, and at the same time, to the IC chip 22 by an electric signal. Input / output data to / from.

(Distribution Management Method by Distribution Management System)
A distribution management method using the distribution management system having the above configuration is performed according to the following procedure.

As shown in FIG. 11, the information recording medium 1 manufactured by the content providing company 101 is shipped to the store 102 while being housed in a case or the like and wrapped with vinyl or the like. At this time, it is assumed that the information recording medium 1 records a provider ID that identifies the content provider 101.

At the store 102, a store ID for identifying the store 102 is recorded on the delivered information recording medium 1. Since the management data recording unit 2 of the information recording medium 1 can write the management data in a contactless manner via radio waves, the management data can be written from the outside without opening the packaging of the information recording medium 1. it can.

Next, from the store 102 to the rental store 10
3, the information recording medium 1 is sold, and the sold information recording medium 1 is lent to the user 104. At the time of this lending, the rental shop 103 writes the rental shop ID in the information recording medium 1.

The user 4 who borrowed the information recording medium 1 inserts the information recording medium 1 into the recording / reproducing apparatus 141. At this time, the recording / reproducing apparatus 141 has the store ID, the provider ID, and the rental store I written in the information recording medium 1.
The D / D is read by the recording / reproducing pickup 142c, and the recording / reproducing apparatus ID for specifying the recording / reproducing apparatus 141 is combined with the read store ID and provider ID, and the distribution management server 106 via the management data transmitting / receiving circuit 142a.
Send to.

The distribution management server 106 extracts the provider company ID, the half beer store ID, and the recording / reproducing device ID from the received management data, registers them in the user database 161, and causes the key information acquisition unit 1165 to use the content provider company. The key information 105 is acquired from 101. The acquired key information 105 is registered in the user database 161, and encrypted by the encryption means 164.
It is returned to the recording / reproducing device 141 via the key information transmitting unit 162.

The recording / reproducing apparatus 141 decrypts the received key information 105 by using the recording / reproducing apparatus ID of its own device, and sends the decrypted key information 105 to the signal reproducing circuit 142e. The signal reproduction circuit 142e reproduces the content using the key information 105. The received key information 105 is recorded in the information recording medium 109. When the same content is used for the second time or later, the recorded key information 105 is used and the distribution management server 10 is used again.
No need to connect to 6.

The distribution management server 106 charges the user 104 using the management data of the user 104 stored in the user database 161. The charge management unit 167 requests the charge collection company 107 to pay the price based on the charge information accumulated in the user database 161. After that, the distribution management server 106 pays a part of the content price paid from the fee collection company 107 to the content providing company 101, the store 102, and the rental store 103.

The information recording medium 1 that has been viewed is returned to the rental store 103. Even if the returned information recording medium 1 is rented to a user other than the user 104, it cannot be reproduced unless the recording / reproducing device 141 has a unique recording / reproducing device ID. Even if the key information of the device 141 is recorded, another user cannot reproduce it. Therefore, even if another user borrows the information recording medium 1, the other user must obtain the key information suitable for the other recording / reproducing apparatus used by himself / herself, and thereby the copyright management can be performed. It will be done properly.

(Operation and Effect of Distribution Management System and Distribution Management Method) According to the distribution management system and distribution management method of the present embodiment, the user can reproduce the content by using the content providing company 101 and the dealer 102. The key information 1 for transmitting the ID for identifying the rental store 103 and the recording / reproducing apparatus ID for identifying the recording / reproducing apparatus 141 to the distribution management server 106 and reproducing the content by this transmission.
Get 05. By thus obtaining each ID, the distribution management server 106 can grasp the user 104 and the distribution route leading to the user 104.

The key information 10 is sent to the user 104.
User 1 to be charged according to the transmission of 5
It is possible to appropriately request the fee for use of the content No. 04 and distribute the fee for each distribution stage. As a result, it is possible to balance the profits of each store 102 and rental store 103 placed in a complicated distribution route. For example, even if the amount of content shipped to the rental store 103 is increased, the price depending on the use of the content is paid to the store 102.
The profit of the store 102 can be protected while reducing the opportunity loss in the rental store 103.

Further, since the key information 105 can be distributed at the time of reproduction to grasp the usage frequency of the content of the user 104, it is possible to request a fee only for the content actually used, The 104 does not need to pay unnecessary consideration for the content that is not used.

Further, since the content cannot be used without the key information 105, the frequency of use of the content can be accurately grasped by managing the key information 105, and an appropriate copyright fee is imposed, and content production is performed. It is possible to protect persons.

Further, in this embodiment, since the store ID of the store 102 is written in the information recording medium 1 without contact, it is not necessary to open the packaging of the information recording medium 1 and the information recording medium 1 Distribution management can be performed without delaying distribution.

As a modification of the distribution management system and method, the user 1 at the rental store 103
The information recording medium 1 may be distributed to 04 for free. In this case, the user 104 does not need to pay the price when renting the information recording medium 1 at the rental shop 103, and when using the content, pays the content fee including the rental fee to the fee collection company 107. You will have to pay. As a result, the user 104 does not have to pay the fee twice, and the convenience of the user 4 can be improved.

[Modification Example of Information Recording Medium] In the above-described embodiment, the shape of the information recording medium is shown in FIG.
Although the disc-shaped disc as shown in FIG. 4 and the like is used, the present invention is not limited to this and may be a card-shaped disc as shown in FIG.

That is, as shown in FIG. 12, the card 1
1 has a card shape whose outer shape is a rectangular shape, has an opening portion in the center thereof, and has a circular content recording portion 3 (a shaded portion in the drawing) cut out around the opening portion. It is provided. This content recording unit 3
The reflective layer is formed by vapor-depositing a metal film on a transparent substrate, and a protective layer is further laminated on the reflective layer, which is a portion for writing and reading data by a light beam or the like.

Further, in this modified example, the management data recording section 2 is arranged along the outer edge of the card 11. That is, as shown in FIG.
The IC chip 22 is rotated along the outer edge of the IC chip 22.
The outer edge 2 of the card 11 is located. In this case, as shown in FIG. 12, a part of the antenna part 21 overlaps with the content recording part 3 which is a metal part, but since it is only a part of the antenna part 21, the influence on radio wave reception is small.

According to the information recording medium of the present modification, which has such a card shape, since it has a card shape,
It has excellent portability and can be handled in the same way as other cards. In addition, the content recording unit 3 is a CD-ROM
Since it has the same data storage capacity as DVD and ROM,
A large amount of information data can be recorded. Further, since the management data recording unit 2 can write and read data in a contactless manner, it is possible to remotely input and output a large amount of information data and improve the convenience for the user.

[0090]

As described above, according to the present invention,
In an information recording medium which is formed by laminating a resin member and a metal film and in which data is written by a laser or the like,
Data can be written or read from the outside of the case or the like in a contactless manner with respect to the information recording medium even when it is covered with the case or the packaging. As a result, the management data can be written and read on the information recording medium in the package even at the distribution stage, and the distribution management can be easily performed.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an information recording medium according to an embodiment of the present invention, (a) is an external perspective view of the information recording medium,
(B) is a block diagram showing an internal structure of a recording / reproducing apparatus for an information recording medium.

FIG. 2 is an explanatory diagram showing a first form of a data recording section of the information recording medium according to the present embodiment, (a) is a top view of the information recording medium, and (b) is a center of the information recording medium. FIG. 3 is an enlarged view showing the vicinity of a portion, and FIG.
It is an enlarged view which expands and shows a chip.

FIG. 3 is an explanatory view showing a form 2 of a data recording section of the information recording medium according to the present embodiment, FIG. 3A is an enlarged view showing a central portion of the information recording medium in an enlarged manner, and FIG. )
FIG. 7 is an enlarged view showing an IC chip in an enlarged manner.

FIG. 4 is a sectional view showing a form 2 of the data recording section of the information recording medium according to the present embodiment.

FIG. 5 is a cross-sectional view showing a modified example of form 2 of the data recording section of the information recording medium according to the present embodiment.

FIG. 6 is an explanatory diagram showing a third form of a data recording unit of the information recording medium according to the present embodiment, FIG. 6A is an enlarged view showing a central portion of the information recording medium in an enlarged manner, and FIG. )
FIG. 7 is an enlarged view showing an IC chip in an enlarged manner.

FIG. 7 is a cross-sectional view showing a third form of a data recording section of the information recording medium according to the present embodiment.

FIG. 8 is an explanatory diagram showing a modified example of the form 3 of the data recording unit of the information recording medium according to the present embodiment, and FIG. 8A is an enlarged view showing the vicinity of the central portion of the information recording medium in an enlarged manner. ,
(B) is an enlarged view showing the IC chip in an enlarged manner.

FIG. 9 is an explanatory view showing a form 4 of the data recording section of the information recording medium according to the present embodiment, FIG. 9A is an enlarged view showing a central portion of the information recording medium in an enlarged manner, and FIG. )
FIG. 7 is an enlarged view showing an IC chip in an enlarged manner.

FIG. 10 is an explanatory diagram showing a procedure of a method for manufacturing an information recording medium according to the present embodiment.

FIG. 11 is a block diagram showing a schematic configuration of a distribution management system according to the present embodiment.

FIG. 12 is an external view showing a modification of the information recording medium according to the present embodiment.

[Explanation of symbols]

1 ... Information recording medium, 2 ... Management data recording section, 3 ... Content data recording section, 21 ... Antenna section, 22 ... IC chip

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H01Q 1/38 G06K 19/00 K 7/00 FF term (reference) 5B035 BA05 BB09 CA23 5D029 PA01 PA08 5D121 AA11 AA20 JJ05 5J046 AB11 PA01

Claims (8)

[Claims] 1. An information recording medium comprising a resin member and a metal film laminated, an antenna section formed by winding a metal member, a storage section for storing data, and the antenna section connected to the antenna section. An information recording medium, comprising: an input / output unit that inputs / outputs an electric signal generated in a unit as data to / from the storage unit. 2. The storage unit and the input / output unit are integrated into an IC chip, and the IC chip and the antenna unit are attached to the surface of the information recording medium. The information recording medium described in. 3. The memory unit and the input / output unit are integrated into an IC chip, the IC chip is attached to the surface of the information recording medium, and the antenna unit is a layer in which the metal film is laminated. A connection part is provided between the IC chip, which is disposed inside and is attached to the surface, and the antenna part, which is disposed inside the layer, for electrically connecting them. The information recording medium according to claim 1. 4. The memory unit and the input / output unit are integrated into an IC chip, the IC chip is attached to the surface of the information recording medium, and the antenna unit has a part of the metal film. The other part is arranged on the surface of the information recording medium, which is arranged in the laminated layers, and a connection part is provided between the IC chip and the antenna part for electrically connecting them. The information recording medium according to claim 1, wherein: 5. The connection portion includes a connection hole formed by penetrating the resin member or the metal film, and a conductive member arranged in the connection hole. The information recording medium according to claim 3 or 4. 6. The information recording medium is rotated to read data, and the IC chip and the connection are arranged so that a center of gravity of the information recording medium is located at a rotation center of the information recording medium. The information recording medium according to claim 5, wherein holes for use are arranged. 7. The information recording medium according to claim 1, wherein the antenna section and the metal film are arranged so as not to completely overlap each other in the stacking direction. 8. An antenna part formed by laminating a resin member and a metal film, the metal part being wound around, a memory part for recording data, and the antenna part connected to the antenna part. A method of manufacturing an information recording medium having an input / output unit for inputting / outputting an electric signal to / from the storage unit as data, comprising a step of forming a groove portion having the same shape as the antenna portion in the resin member, A method for manufacturing an information recording medium, comprising: a step of forming a metal film on a surface of a resin member; and a step of removing the metal film in the vicinity of the groove while leaving the metal film in the groove.