WO2005091434A1 - Recording medium ic tag sticking sheet and recording medium - Google Patents

Recording medium ic tag sticking sheet and recording medium Download PDF

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Publication number
WO2005091434A1
WO2005091434A1 PCT/JP2004/015419 JP2004015419W WO2005091434A1 WO 2005091434 A1 WO2005091434 A1 WO 2005091434A1 JP 2004015419 W JP2004015419 W JP 2004015419W WO 2005091434 A1 WO2005091434 A1 WO 2005091434A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording medium
antenna
ic tag
recording
sheet
Prior art date
Application number
PCT/JP2004/015419
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroki Morisaki
Takanori Suzuki
Tomohiro Ogata
Original Assignee
Uchida Yoko Co.,Ltd.
Nittoku Engineering Kabushikikaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2004087774 priority Critical
Priority to JP2004-087774 priority
Application filed by Uchida Yoko Co.,Ltd., Nittoku Engineering Kabushikikaisha filed Critical Uchida Yoko Co.,Ltd.
Publication of WO2005091434A1 publication Critical patent/WO2005091434A1/en

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Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/30Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus Intermediate mediums; Apparatus or processes specially adapted for their manufacture with provision for auxiliary signals
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/04Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the shape
    • G06K19/041Constructional details
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/04Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the shape
    • G06K19/041Constructional details
    • G06K19/042Constructional details the record carrier having a form factor of a credit card and including a small sized disc, e.g. a CD or DVD
    • G06K19/045Constructional details the record carrier having a form factor of a credit card and including a small sized disc, e.g. a CD or DVD the record carrier being of the non-contact type, e.g. RFID, and being specially adapted for attachment to a disc, e.g. a CD or DVD
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • G11B23/0028Details
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • G11B23/286Antitheft arrangements, e.g. Electronic Article Surveillance [EAS] tags
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Abstract

There is provided an IC tag which can be stuck directly to a CD. The IC tag comprises a thin planar sheet (10) formed into a shape fitted to the CD, a loop-shaped antenna (101) provided along the circumference of the CD, and an IC chip (102) performing noncontact communication through the antenna. The antenna (101) is formed of a conductor and arranged on the recording region of the CD. Communication has been conventionally impossible when the antenna is arranged on the recording region of the CD, but communication is enabled when an antenna is formed of a conductor.

Description

Specification

Recording medium for an IC tag attached sheet and the recording medium

Technical field

[0001] This invention relates to sheet over preparative and recording medium was affixed to the IC tag for attaching the IC tag to the disk-like recording medium such as a CD or a DVD, in particular, those suitable for library rental management system an object of the present invention is to provide a.

BACKGROUND

[0002] In recent years, attention is paid to the IC tag, Ru. An IC tag, a tiny IC (integrated circuit) chip and

, A compact device that combines an antenna for wireless communication, using the reader z writer and hump wireless communication device, write data to the IC chip, is that it is possible to read the data.

[0003] if you stick ic chip taken up in the product one by one to record specific information (identification information), respectively, since it becomes possible to literally "stock keeping unit", it has been widely studied mainly introduced in the distribution field. Conventionally, wider bar code in the distribution field have been used

, IC with tag allows the reading and writing of data in the non-contact-remote, storable data amount than using barcodes from increasing and can be applied to more advanced 'wide range of applications, we Te, Ru.

[0004] The library lending management system as a management system using the IC tag is Ru popular Tsutsua. Conventionally, for the purpose of streamlining spoon books such administration, have been introduced in many Library of the bar code type (optical code reading) and OCR (Optical Character Recognition) expression library such rental management system. According to the system using a bar code significant reduction chi spoon 'surely I spoon it becomes possible, you must read the book such in one volume book Dzu' scanner, to read the information of a plurality of books such once can not troublesome hunt force.

[0005] solve the above problems, in recent years, for the purpose of further rationalization I spoon books such management, affixed ic tag record and registers the information of books in Figure documents, ic chip reader Z Writer it has been performed to read the information such as recorded registration number to.

[0006] when a user borrows a book, placing the book information affixed to the IC tag to the book performs processing of reading lending on the reader Z writer writes information of lending the IC tag. For if you borrow a multiple of book, it must be performed processing for all of the plurality of books. When you do not read the information even any one of the plurality of books such at the time of the loan, it must be the ChikaraTsuta force confirmed Chiichi have manually such read information of any books class, very labor it takes. Therefore, in the library rental management system to be able to reliably communicate with the IC tag of all books sought.

[0007] By the way, increasing some places lend a music CD or a movie DVD with books in the library Eteiru. CD or a DVD (hereinafter, referred to as the collectively "recording medium") is also a force prior to attaching the IC tag to the managed is the etc. to affix the IC tag in the case of the recording medium is photon, record it has not been performed for affixing directly IC tag on the medium. By reader Z writer antenna and the antenna of the IC tag is bound to the electromagnetic, although it performs communication supplies power to the IC tag, the recording surface of the recording medium affixed directly IC tag on a recording medium (conductor made of a thin film of aluminum is, Ru due to the effects of) the electromagnetic coupling is not satisfactorily performed, it becomes impossible communication.

[0008] and to force, if you attached the IC tag to the case, when the contents of the case, such as that or be empty, the middle and the case body Irechiga', not be the correct management. Such a thing in order to make appropriate management taking into account the will, must be one by one matching the case and the contents of the recording medium, it takes great effort. This is becomes meaningless the introduction of the Setsuchikarabe IC tag. For this reason, it is required to affix directly to the IC tag to the recording medium.

[0009] Patent Document 1: JP-11 250 494 JP

[0010] Patent Document 1, you disclose integrating the non-contact IC chip on the disc-shaped recording medium. With paste or embed the non-contact IC chip of an electromagnetic coupling method in the vicinity of the central hole of a recording medium CD- ROM, so as to surround the central hole, or paste embedding antennas in CD- ROM, IC the chip, og to record information to confirm the authenticity of record contents of the identifying information and CD- ROM each medium is Umono.

Disclosure of the Invention

Problems that the Invention is to you'll solve

[0011] IC tag to be attached to the recording medium, Rukoto to transmitting and receiving source power and signal by electromagnetic coupling system, it is intended read-only or writable and read, rotational drive does not protrude to the surface of the recording medium do not interfere during, in addition to conditions such as, must satisfy the following conditions in order to conform to the management system began to lend library.

[0012] (1) Since in the library rental management system is the distance between the reader Z writer leaves approximately several tens cm, it must be capable of communicating even if such. Further, since the common gate interval for detecting the takeout 90cm, communication distance of the IC tag significantly shortened by the influence of the recording surface of the read distance of about 45 c m of half preferred (recording medium, at least It has been said that it is impossible to use by attaching directly IC tag on the recording medium in the library rental management system).

[0013] (2) Since there is a case to be lending a few books and a few pieces of the CD at the same time, even when there was location, the leader Z writer with books and CD also piled several books many pieces -, all books and CD IC tags and such must be able to communicate,.

[0014] (3) shall be applied to all of the recording medium handled by the library. To affix the IC tag to the recording medium in the library (nag of being stuck in the process of manufacturing the recording medium is afterwards affixed), IC tag shall those available for any recording medium, the force actually inventors that the communication performance of the IC tag varies greatly depending on the type of the recording medium was found. The size 'materials of standard recording medium is defined, in reality, records seem affected by printing the state of the medium surface (such as the type of printing thickness and ink) (particularly iron the size effect of the ink containing, as a is).

[0015] disclosed in Patent Document 1, the antenna so as to surround the provided central hole of the CD- ROM (Do affected, Do exist serial Rokumen aluminum thin film on this portion, so) an IC tag has a low antenna diameter reduced its communication capability provided around the central hole, (which is at most about 5 cm) which can not communicate with a little away. Accordingly, the (1) and (2) satisfy the conditions can not be the. Note that the force the paragraph placing antennas in paragraph 0018 of Patent Document 1 the outermost periphery of the recording medium is mentioned, the outer peripheral portion multi be contact member of the finger or CD- ROM drive since, now many opportunities to damage the IC chip, practically undesirable, and are also described. This Patent Document 1, and bound by the this providing an antenna portion, that the information part other than the recording area other than the recording surface of the § Rumi thin, Runode, Do only 1mm about the width, of the disc recording medium This is because there must be only set the antenna to the edge. Patent Document 1, the influence of the recording surface of the aluminum thin film in order to avoid, that the antenna is provided to the non-existent portion of the recording surface as a basic concept! /, Rukoto is suggesting.

[0016] In the invention disclosed in Patent Document 1, not even satisfactory condition (3). Referring to the entire description of Patent Document 1, the invention is intended to provide an IC tag in the manufacturing process of the recording medium, it is not intended to affix the retrospectively IC tag after shipping the product . Patent Document 1 is obtained by ignoring the effect of the printing surface of the important recording medium when sticking the different types Na instrument posteriori IC tag intended to be applied to a recording medium, a library rental management system can not be used.

[0017] The present invention satisfies the above condition (1) i (3), and an object thereof is to provide a particularly IC tag affixed sheet and recording medium suitable recording medium library rental management system. Means for Solving the Problems

[0018] The present invention, I a disc-shaped recording medium including a recording area for recording information therein

A sheet for attaching the C-tag, carried out with the recording medium formed in a shape adapted thin plate-shaped base, and a loop-shaped antenna provided on the base, the contactless communication through the antenna and an IC chip,

And forming the antenna substantially circular section, with conductors of a substantially regular polygon or substantially square

In a state of being attached to the recording medium, is characterized in that the position of the antenna on the recording area of ​​the recording medium.

[0019] 卷数 and spacing of the conductors of the antenna, is configured to contact the state of being attached to a plurality of types of recording medium, variations in the communication distance of the antenna Te decreases !, Rukoto are preferred.

[0020] Suitable examples of 卷数 and spacing of the conductors of the antenna are as follows.

• Using frequency 13. 56 MHz, when using the CD'DVD 12cm diameter as the recording medium, 卷数 of the conductors 4, the interval of the conductive wire is a 0. 35 mm or 0. 45 mm. However, the diameter of the antenna is 110 mm, cross-sectional diameter φ of the conductor is 0. 11 mm.

[0021] The resonant frequency of the antenna in a state before being attached to the recording medium, it is preferable to set higher than the frequency used for the IC chip.

[0022] The antenna is provided with arc-shaped plurality of circumferentially portion located circumferentially of the recording medium, and a plurality of non-circumferential portion located inside away circumference before type recording medium, together with the circumferential portion between the rotation center of the Symbol recording medium is arranged symmetrically, the non-circumferential portion to each other are arranged symmetrically, even in the so that Yo,.

[0023] The shape of the antenna, when the recording medium on which the IC tag is attached are stacked plurality, for antennas of the recording medium do not interfere with each other, it is preferable that a variety of different shapes. If the antenna is to include a non-circular portion, it can be arbitrarily set the shape of the non-circular portion can be realized a variety of shapes.

[0024] Furthermore, the recording ヽ good be provided with a counterweight which kicked setting the position of the location and symmetry of the IC chip with respect to the rotation center of the medium.

[0025] storage medium according to the present invention comprises a disc-shaped recording medium including a recording area for recording information therein, a loop-shaped antenna provided on the surface of the recording medium, non-contact through the § antenna in an IC chip for performing communication,

And forming the antenna conductors of a substantially circular or substantially square, characterized in that the position of the antenna on the recording area of ​​the recording medium.

Effect of the invention

According to [0026] the present invention, since the arranged along the circumference of the recording medium antenna to form the antenna conductor of substantially circular section or substantially square, was able to extend the communication distance to the extent practicable . Also mosquito ゝ, by appropriately selecting the 卷数 and spacing of the conductors constituting the antenna, can now be used by attaching to various recording media. BEST MODE FOR CARRYING OUT THE INVENTION

[0027] recording medium was affixed IC tag affixing sheet and this recording medium according to an embodiment of the present invention will be described with reference to the drawings.

Figure 1 is a diagram showing a recording medium for an IC tag attached sheet according to an embodiment of the present invention, FIG. 1 (a) is a plan view, FIG. 1 (b) cross section taken along the A- A line of a plan view it is a diagram. Note sectional view is correct there are respective thicknesses a schematic view, showing the scale, I,. Also it caused a deflection distortion Ya, Do not! / Plane on the assumption that ヽ 'shows a linear state. In Figure 1, 1 denotes a recording medium for an IC tag attached sheet according to an embodiment of the present invention. Recording medium for an IC tag attached sheet 1 has a slightly smaller disk-shaped sheet (base) 10 than in the same shape as the recording medium of the CD, etc. somewhat inside of the outer edge of the sheet 10: (eg about 2. 5 mm inside) and antenna 101 provided along the circumference, the IC chip 102 that communicates with the outside in non-contact through the antenna 101, and connecting lines 103 for connecting the antenna 101 to the IC chip 102, the rotation of the recording medium and a counterweight (counterweight) 104 for balancing rotation are symmetrically placed to the IC chip 102 for the center. The lower surface of the recording medium for the IC tag stuck sheet 1, double-sided tape 11 for attaching the sheet 1 to the recording medium (eg thickness = about 0. 05mm) and a separator for protecting an adhesive surface of the double-sided tape 11 12 is provided. Peeling the separator 12 pasting recording medium IC tag stuck sheet 1 to the recording medium.

[0028] sheet 10 be comprised a base for attaching the antenna 101 and IC chip 102, its shape is adapted to the recording medium. Specifically it has a circular shape. Since the diameter of the seat 10 is a recording medium and equal to or larger than the sheet 10 is likely to give trouble to the rotation of the recording medium, the diameter of the seat 10 is slightly smaller than the recording medium (eg diameter of the recording medium body = about 120111111, of the seat 10 diameter = about 115 mm). Inside the seat 10, the inner hole of larger diameter is provided than the inner hole so as not to block the bore for driving the rotation of the recording medium. In Figure 1, 10a denotes the outer edge of the sheet 10, 10b denotes an edge of the inner hole of the seat 10.

[0029] The sheet 10 has an opening portion is provided for accommodating the IC chip 102, the counterweight 104. For this reason the surface of the sheet 10 is flat. If the IC chip 102 is relatively thin casting, although the IC chip 102 does not protrude above the seat 10, no practical problem even slightly protrude (eg thickness of the sheet 10 of 榭脂 made (polycarbonate) = about 0 . 25 mm 0 body height = 0. 15 mm, but in the case of thick = 0. 08Mm the IC chip mounting portion does not protrude on the sheet 10, body height = 0. 3 mm, the mounting portion thickness = 0. slightly protruding for 08mm IC chip).

[0030] Antenna 101 (eg antenna diameter = about 110 mm) is obtained by forming a conductor of substantially circular section (walking substantially square goodness be substantially regular polygon ヽ) Te multiple Certificates ヽ. Although cross-section as the printed wiring is impossible communication to be a thin Ya foil shape in cross section by using the round wire was found to be able to communicate as described below. The cross-sectional shape is presumed to be usable as regular polygon or square in outside circle than. Resonance frequency of the antenna 101 is set higher than the frequency used in the IC chip 102. With this setting, record the lower the resonance frequency when the IC tag attached sheet 1 was stuck on the recording medium for medium, made to match the frequency used. As shown in FIG. 1 (a), to maximize the diameter of the antenna 101 by placing a circular along the antenna 101 outside edge of the sheet 10, it is Rukoto increase its gain. However, at least part of the antenna 101 to the shape shown in FIG 1 (a) V, lever (e.g. 10, see FIG. 11) required gain can be obtained.

[0031] FIG. 2 (a) shows a detailed cross-sectional view of a portion of the antenna 101. Antenna 101 is composed of four conductors 101- 1 101-4 disposed substantially concentrically. The diameter of the wire is about 0.1 1. Four conductors 101- 1 101 - 4 are arranged at regular intervals (pitch) P. § antenna 101 of that force above which constitutes a thin wire (1) is important to meet the conditions one (3). Reference numeral 101 in FIG. 2 (c) '- 1, 101' - if the thickness relative to the width of the conductor as 2 is small (when typically formed by etching or printing a conductor), affixed to the recording medium ChikaraTsuta such be able to communicate with the IC tag in the state. The reason for this, it is impossible to increase the difficulty instrument cross-sectional area increasing the thickness of the conductor if formed by etching or the like. Be formed forcibly thick would be one surface of the conductor (e.g., side) dwindling, it can not increase the cross-sectional area as conductors. Thus the resistance value becomes larger than the inductance characteristics of the coil is presumed to deteriorate.

In contrast, by forming the antenna in wire as shown in FIG. 2 (a), areas of the recording surface of the recording medium it is possible to provide the antenna 101 and the IC chip 102. Patent Document 1, such constraints are become unnecessary according to the provision of the antenna 101 and the IC chip 102 in a region where there is no exclusively recording surface to an embodiment of the disclosing power present invention.

[0032] FIG. 2 (b) shows a detailed cross-sectional view of a portion of the IC chip 102. Power IC chip 102 depends on the type of the IC chip 102 is provided with a mounting portion 102b which is a base body 102a. Mounting the IC chip 102 to the sheet 10 at the mounting portion 10 2b. Body 102a is accommodated in the opening was found provided on the sheet 10 described above. FIG. 2 (d) shows an example of a plan view of the IC chip 102. In this example comprises a mounting portion 102b which also serves as a connection terminal to the opposite ends of the body 102a. Antenna 101 is connected to these terminals. The portion of the counterweight 104 is also similar to FIG. 2 (b).

[0033] FIG. 3 is a view showing a state of attaching the recording medium for the IC tag attached sheet 1 to the recording medium, FIG. 3 (a) is a plan view, FIG. 3 (b) plan view A- A-line it is an arrow cross-sectional view. FIGS. 3 (a) as kana Akira et al from, a recording medium for an IC tag attached sheet 1 is not even protrude recording medium force. Therefore, does not impair the original function of the recording medium if within an acceptable range the thickness of the sheet 1 in the standard recording medium. Antenna 101 and the IC chip is a recording medium of the serial Rokumen provided on the (recording area) 21 as shown in FIG. 3 (b).

[0034] Next, a specific example of the embodiment of the present invention.

4 one 8 is measured data measured resonance frequency and communication distance by changing the number and spacing of 卷線 antenna 101 (pitch). Ru using a dip meter to measure the resonant frequency. Some of the dip meter contains the oscillation circuit, Te made To display so the oscillation energy to the meter! /, Ru. Closer the coil of the dip meter to the coil of the resonant circuit to be measured only, it will change the oscillation frequency little by little by turning the dial of the measuring instrument, the oscillation energy of the dip meter and ing to the resonant frequency resonant circuit of the measurement object blotted is, the needle of the meter falls. Measuring the frequency of the resonant circuit using this.

[0035] FIG. 4 is 卷数 = 4, shows a characteristic when the pitch = 0. 35 mm. 4 (a) is a graph showing the communication distance with the resonance frequency. Right vertical axis scale is the frequency of the graph (Unit: MHz) shows the communication is vertical scale on the left side distance (unit: mm) (The same applies to FIG. 5 and subsequent graph) showing the. The horizontal axis is the number of the recording medium was attached an IC tag to be measured. It is measured for 4 in 10 sheets of the recording medium. 10 sheets of the recording medium of Figure 4 is of the same type all. In contrast, the data of FIG. 5 and subsequent is measured for different types of recording medium. FIG. 4 (b) shows the measurement data. Graph of FIG. 4 (a) illustrates a graph table data in Fig. 4 (b) (hereinafter the same).

[0036] Chikararu I the following: According to FIG. 4.

• for all the same type of recording medium, a small field variability of the communication distance and the resonance frequency of each recording medium.

'Resonant frequency about 14. 5 MHz, the communication distance is about 260 mm.

[0037] Figure 5 卷数 = 4, pitch = 0. 35 mm, shows the properties for different types of recording medium. Next thing I Chikararu According to FIG. 5.

• different because it is the type of recording medium, variation is large Natsuta the communication distance and the resonance frequency of each recording medium.

'Resonant frequency 14. OMHz about the communication distance is 231- 270 mm.

[0038] Figure 6 to indicate 卷数 = 5, pitch = 0. 35 mm, the characteristics of the different types of recording medium. Chikararu the following: According to FIG. 6.

• different because it is the type of recording medium, variation is large Natsuta the communication distance and the resonance frequency of each recording medium. Especially very large variation in communication distance.

'Resonant frequency 15. 00- 15. 70 MHz, the communication distance is 222- 310 mm.

[0039] Figure 7 to indicate 卷数 = 5, pitch = 1. 35 mm, the characteristics of the different types of recording medium. Chikararu the following: According to FIG. 7.

• different because it is the type of recording medium, variation is large Natsuta the communication distance and the resonance frequency of each recording medium. Especially very large variation in communication distance.

'Resonant frequency 14. 10- 14. 40 MHz, the communication distance is 213- 309 mm.

[0040] Figure 8, to indicate 卷数 = 4, pitch = 0. 45 mm, the characteristics of the different types of recording medium. Next thing I Chikararu According to FIG. 8.

• different because it is the type of recording medium, variation is large Natsuta the communication distance and the resonance frequency of each recording medium.

'Resonant frequency 14. 0- 14. 50MHz, the communication distance is 241- 280mm.

[0041] When comparing Fig. 5 and FIG. 8, variation small tool and more of the communication distance in FIG. 8, it can be seen that the communication distance is extended. Figures 6 and 7, or increase from 4 to 卷数, when widen the pitch and 1. 35 mm, it can be seen that the variation in communication distance becomes very large. To meet the above-mentioned condition (3) is Do overextended pitch or increase 卷数, it is desired to U,.

[0042] From the viewpoint of use in library rental management system, 卷数 及 Beauty spacing of the conductors of the antenna 101 so as to satisfy the aforementioned conditions (1) to (3), that is, multiple types while ensuring a predetermined communication distance Although-out Baratsu communication distance of the antenna in the attached state on the recording medium is set to be less is preferable. Taken together the data, the example of FIG. 8 can be said to be most suitable for the condition of the above (1) and (3). [0043] In addition, the resonance frequency is found to be lower when sticking the antenna 101 to the recording medium. This is presumed to be caused by capacitive coupling between the recording surface of the antenna and the recording medium. Therefore, the resonance frequency of the antenna 101 in a state before being attached to the recording medium, using frequency (eg: 13. 56 MHz) of the IC chip 102 is preferably set higher than. It can exhibit optimal performance in the usage state of the IC tag so doing. It shows the characteristics of the patch before the antenna to a recording medium (CD) in FIG. FIG. 9 is a antenna of the same conditions as in FIG. 8. Resonant frequency of the paste before the antenna and paste it into 19. 2MHz der Ru force recording medium by a dip meter fall about 25% to 14. 00- 14. 50 MHz as shown in FIG.

[0044] Embodiments of the present invention is characterized in that constructed using conductors Nag in printing and etching the antenna. This is because in the printing and etching that is a ho a command not communicate while attached to the recording medium can communicate if lead is to be based on the finding of the inventor. Antenna according to conductors, that when printing or increased cost than the etching force diagram Shokan rental management system that extensive use since paste retrospectively IC tag to the recording medium in great problem in terms of cost Nag not not.

[0045] As described above, according to the embodiment of the present invention, since the arranged along the circumference of the recording medium antenna while shape formed antenna with a substantially circular section of the wire, the coiled antenna I was able to extend to the extent practicable the communication distance it is possible to increase the output can be increased outer diameter. By appropriate selection of 卷数 and spacing of the conductors constituting the antenna, it can now be used by attaching to various recording media. And force also results the output is increased, is possible to increase the reliability since the antenna can be placed record region of the recording medium in the attached state on the recording medium. It does can be placed on the recording area, in the conventional manner antenna inevitably formed on the outer peripheral portion, and contact members of the finger and the drive device, results in damage to the § antenna and IC chip, it is not about practical .

[0046] Incidentally, even when there was location, the leader Z writer scratch also overlapped several books' many sheets the above conditions (2) books and recording medium, it should be able to communicate with the IC tag of all books and recording medium a bur, the antenna can be satisfied by the structure described above. In order to be able to communicate more reliably IC tag, it is good preferable that interference between the IC tag occurs Do, so. With the size of the antenna as described above as a one way prepares the antenna Samaza Mana shape, is possible to prevent overlap § antenna adjacent ones when the stacked recording medium Conceivable. If I only antenna one type of Figure 1, will be very close to each other for the whole of the antenna in the case of repeated record media, the far-force that can communicate with people near ヽ the leader Z writer, better is near, law there is a possibility that the antenna becomes difficult communication interfere.

[0047] Even when the shape of the antenna are various, arbitrary preferable be arranged along the circumference of the recording medium at least part of the antenna to base Ku larger the area of ​​the antenna. Circular or shown in Figure 1 as a shape of the antenna, it is possible to adopt a non-circular. Although referred to herein noncircular and its at least a part is Na arc is arranged along the circumference of the recording medium, which part is disposed inside left the circumference 10 Ya those shown in FIG. 11 (a) is a kind of non-circular here. To maintain the balance of rotation, with the arc between which is arranged along the circumference is symmetrical with respect to the rotation center of the recording medium, that is disposed inside the circumference, Ru portions to each other is also symmetrical desired.

[0048] Antenna 101 of FIG. 10, and two arcs (circumferential portion) 101a of about 1Z4 circumference, the two parts having a shape bent approximately 1Z4 portion of the circumference to the inner (non-circumferential portion) It is composed of a 101b. Circumferential portion 101a between the rotation center of the recording medium are arranged symmetrically. Non circumference section 101b is similar. Antenna 101 of FIG. 10 is shaped like a so-called weight.

[0049] Figure 11 antenna 101 (a) is composed of two arcs (circumferential portion) 101a of the circumference of about 1Z6, a linear portion (non-circumferential portion) 101b which connects the end. The circumferential portion 101a and a non-circumferential portion 101b are arranged symmetrically is the same as FIG. 10. Antenna 10 has a shape close to a rectangular shape. In the case of Figure 11, sheet 10 may be a similar shape to the antenna 101 as indicated by a dotted line in FIG. 11 if e Yogu example may not disk-shaped. Sheet 10 is with a matching shape on the recording medium, the said shape includes later also the antenna shape similar in Figure 11.

[0050] In the above description, at least part of the antenna has been described as an example in which an arc is arranged along the circumference of the recording medium, without the portion along the circumference to the antenna even if the same operation and effect. Can most effectively use the area of ​​the recording medium arranged along the circumference of at least a portion of the record medium of the antenna, as long as it can increase the area of ​​the antenna, the essential points disposed along the circumference is not. Drawing

To 1 Kb) shows an example of such an antenna. The figure shows a case where the square antenna

[0051] The shape of the antenna 1, by a variety of shapes as shown in FIGS. 10 and 11, the antenna is reciprocal each recording medium even when the recording medium on which the IC tag is attached is superimposed plurality interfere can be prevented to. Viewpoint force of interference prevention, it is preferable that the different shapes for each recording medium the shape of the antenna. While in the case of circular antenna of FIG 1 there is a risk of interference of the antenna even by rotating the recording medium by rotating the recording medium have a shape of FIG. 10 and FIG. 11, a though the same shape it is possible to prevent the interference of the antenna. That is, even when using only the antenna one non-circular, in use practically no antenna since the recording medium body facing various directions completely overlap, the possibility of interference is low.

[0052] Although the above description has been described taking the use of the library rental management system as an example

The present invention is not limited to this application. For example, it can be applied to any application that needs to satisfy some or all of the conditions of the aforementioned (1) i (3).

[0053] The present invention is within the scope of the invention described in the scope of such ingredients claims be limited to the above embodiment, and various modifications may be made, which are encompassed within the scope of the present invention it is needless to say that those that.

BRIEF DESCRIPTION OF THE DRAWINGS

[0054] FIG. 1 is a diagram showing a recording medium for an IC tag attached sheet according to an embodiment of the present invention. Figure 1

(A) is a plan view, FIG. 1 (b) is a cross-sectional view taken along A- A line of a plan view.

[2] 2 (a) is detailed sectional view of an antenna portion according to the embodiment of the present invention, FIG. 2 (b) detailed sectional view of the IC chip portion, FIG. 2 (c) printing an antenna portion or detailed cross-sectional view of a case where the form shape by etching, FIG. 2 (d) is an example of a plan view of the IC chip.

3 is a diagram showing a state attaching a recording medium for an IC tag attached sheet to a recording medium according to an embodiment of the present invention. 1 (a) is a plan view, FIG. 1 (b) is a cross-sectional view taken along A- A line of a plan view.

圆 4 is a measured data of the communication distance and the resonance frequency of the antenna according to the embodiment of the present invention (homologous CD, the number of 卷線 = 4, spacing = 0. 35 mm) o

圆 5 is a actually measured data of a communication distance and the resonance frequency of the antenna according to the embodiment of the present invention (different CD, the number of 卷線 = 4, spacing = 0. 35 mm) o

圆 6 is a measured data of the communication distance and the resonance frequency of the antenna according to the embodiment of the present invention (different CD, the number of 卷線 = 5, distance = 0. 35 mm) o

圆 7 is a actually measured data of a communication distance and the resonance frequency of the antenna according to the embodiment of the present invention (different CD, the number of 卷線 = 5, distance = 1. 35 mm) o

圆 8 is a actually measured data of a communication distance and the resonance frequency of the antenna according to the embodiment of the present invention (different CD, the number of 卷線 = 4, spacing = 0. 45 mm).

圆 9] shows a characteristic before sticking the recording medium of an antenna according to the embodiment of the present invention.圆 10 is a plan view showing a non-circular shape of an antenna according to an embodiment of the present invention.圆 11] code description of a plan view illustrating another non-circular shape of an antenna according to an embodiment of the present invention

1 recording medium for the IC tag attached sheet

2 recording medium

The outer edge of 2a recording medium

Edge of the inner hole of 2b recording medium

10 sheets (base)

The outer edge of the sheet 10a

Edge of the inner hole of 10b sheets

11 double-sided tape

12 separator

The recording surface of the 21 recording medium (aluminum thin film)

101 Asotena

Non circumference section 102 IC chip circumference section 101b antennas 101a antenna

102a IC chip body

102b IC chip mounting portion 103 connecting wires

104 counterweight

Claims

The scope of the claims
[1] A sheet for a recording area for recording information attaching an IC tag to a disk-shaped recording medium, including the interior, the recording medium formed in a shape adapted thin plate-like base portion and the loop-shaped antenna provided on the base, and an IC chip for performing non-contact communication via the antenna, the antenna substantially circular section, so as to form a substantially regular polygon or conductors substantially square shape, the in the patch state on the recording medium, a recording medium for an IC tag attached sheet, which comprises positioning the antenna on the recording area of ​​the recording medium.
[2] 卷数 and spacing of the conductors of the antenna, it is configured to contact the state of being attached to a plurality of types of recording medium, variations in the communication distance of the antenna Te decreases !, and wherein Rukoto recording medium for an IC tag attached sheet of claim 1 wherein the.
[3] The resonant frequency of the antenna in a state before being attached to the recording medium, wherein
Recording medium for an IC tag attached sheet according to claim 1, wherein the set higher than the frequency used in the IC chip.
[4] The antenna is provided with arc-shaped plurality of circumferentially portion located circumferentially of the recording medium, and a plurality of non-circumferential portion located inside away circumference before type recording medium, wherein with circumferential portions with each other are arranged symmetrically with respect to the rotation center of the Symbol recording medium, claim 1 recording medium IC according to the non-circular portion with each other, characterized in that it is arranged symmetrically tag attached sheet.
[5] The recording medium claim 1 recording medium IC tag affixing sheet, wherein further comprising a counterweight provided at a position of the position and symmetry of the IC chip with respect to the rotation center of the.
A disk-shaped recording medium including a recording area for recording the [6] Information inside the loop antenna provided on the surface of the recording medium body, and an IC chip for performing non-contact communication via the antenna provided,
And forming the antenna conductors of a substantially circular or substantially square recording medium, characterized by positioning the antenna on the recording area of ​​the recording medium.
PCT/JP2004/015419 2004-03-24 2004-10-19 Recording medium ic tag sticking sheet and recording medium WO2005091434A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004087774 2004-03-24
JP2004-087774 2004-03-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005518814A JP4374346B2 (en) 2004-03-24 2004-10-19 ic tag attached sheet for an optical recording medium

Publications (1)

Publication Number Publication Date
WO2005091434A1 true WO2005091434A1 (en) 2005-09-29

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ID=34994012

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Country Status (4)

Country Link
JP (2) JP4374346B2 (en)
KR (1) KR20060135822A (en)
CN (1) CN1926721A (en)
WO (1) WO2005091434A1 (en)

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JP4374346B2 (en) 2009-12-02
CN1926721A (en) 2007-03-07
JPWO2005091434A1 (en) 2007-08-09
KR20060135822A (en) 2006-12-29
JP2009271932A (en) 2009-11-19
JP4970503B2 (en) 2012-07-11

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