JP2007328567A - Authenticity determination device, rfid tag and authenticity determination system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an authenticity determination device, an RFID tag and an authenticity determination system determining the authenticity of an article. <P>SOLUTION: This authenticity determination device is provided with: a first transmission means for transmitting request information for requesting the transmission of variable ID for identification stored in an RFID tag to the RFID tag; a means for receiving the variable ID for identification from the RFID tag; a second transmission means for adding inquiry request relating to the authenticity determination of the variable ID for identification received from the RFID tag, to the variable ID for identification, and for transmitting it to the database device; a reception means for receiving the collation result from the database device; a determination means for deciding the authenticity of the variable ID for identification based on the inquiry result received from the database device; and a display means for displaying the determination result from the determination means. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an authenticity determination apparatus, an RFID tag, and an authenticity determination system for determining the authenticity of an article.

  2. Description of the Related Art Conventionally, an authenticity determination system has been provided as a technique capable of identifying authenticity such as a branded product, an antique art object with antique value, an object that can be easily duplicated, an object that is easy to misread, and an object that is difficult to prove.

  As shown in FIG. 16A, for example, when a malicious person manufactures copy products 202a and 202b with respect to an original product 201 of a brand-made bag, the original product 201 and the copy products 202a and 202b are distinguished from each other. May not stick.

  Therefore, as shown in FIG. 16B, the manufacturer manufactures an original product 203 in which an integrated circuit holding the unique ID information is embedded, reads the unique ID information from the original product 203 using a reader, If the read unique ID information is inquired, it can be determined that the original product 203 is genuine.

  By the way, what is described in patent document 1 and patent document 2 is reported as a technique which hold | maintains unique ID information in this way. In Patent Document 1, unique ID information is assigned to a replacement part such as a toner cartridge at the time of shipment.

In Patent Document 2, a predetermined algorithm is applied to a unique code of each IC chip to generate a security code such as a check digit, and the generated security code is written to each IC chip, and a reader / writer is used. On the basis of the unique code and the security code read from each IC chip, it is determined whether each IC chip is a copied counterfeit, and consequently the authenticity of each IC chip. In particular, Patent Document 2 uses a serial number that is unique to each IC chip and is readable and non-rewritable as a unique code.
JP 2002-214981 A JP 2002-259936 A

  However, when a malicious person reads the unique ID information from the original product 203 and duplicates this unique ID information and embeds it in the copy product 204, the unique ID information of the original product 203 and the copy product 204 is the same. Based on the unique ID information read from the copied product 204, there is a problem that the copy product 204 is determined to be genuine even though it is a fake.

  As described above, when the technique described in Patent Document 1 is used, it becomes impossible to distinguish an original product from a copy product by an elaborate duplication technique, and when the original product is replaced with a copy product, the copy product is a copy. In spite of this, there was a problem that it was judged as genuine.

  In Patent Document 2, a serial number and a security code are written in each IC chip as a unique code. However, when a malicious person reads the serial number and the security code from the original product 203 and duplicates the serial number and the security code and embeds them in the copy product 204, the serial numbers of the original product 203 and the copy product 204 are Since the security code is the same, there is a problem that the copy product 204 is determined to be genuine even though the copy product 204 is a fake based on the serial number read from the copied product 204 and the security code.

  Therefore, for example, in a hotel cloakroom or airport, when searching for one's own bag from among a plurality of bags similar to the owner's bag, an authenticity determination device, RFID tag for determining the authenticity of the target bag And the proposal of the authentication system was desired.

  An object of the present invention is to provide an authenticity determination device, an RFID tag, and an authenticity determination system that can determine the authenticity of an article.

  In order to solve the above-described problem, the authentication apparatus of the present invention is for authenticity determination in which a variable ID for identification received from a database apparatus via a communication line is transmitted to an RFID tag attached to an article by wireless communication. A first transmitting means for transmitting request information for requesting transmission of the identification variable ID stored in the RFID tag to the RFID tag; and an identification variable ID from the RFID tag. Means for receiving, a second transmission means for adding an inquiry request for authenticity determination of the variable ID for identification received from the RFID tag to the variable ID for identification and transmitting it to the database apparatus; and a query result from the database apparatus Receiving means for receiving the information, and determining means for determining the authenticity of the variable ID for identification based on the inquiry result received from the database device; Characterized by comprising a display means for displaying a determination result by the determination unit.

  According to the present invention, the identification variable ID received from the database device is transmitted to the RFID tag attached to the article, and when authenticity is determined, transmission of the identification variable ID stored in the RFID tag is requested. The variable ID for identification is received from the RFID tag, and the inquiry request for authenticity determination of the variable ID for identification received from the RFID tag is added to the variable ID for identification and transmitted to the database device, and received from the database device. The authenticity of the article can be determined by determining the authenticity of the variable ID for identification based on the inquiry result and displaying the determination result.

  For example, when searching for one's own bag from among a plurality of bags similar to the owner's bag at a hotel cloakroom, airport, or the like, the authenticity of the bag that is the object of the authenticity determination can be reliably determined.

  In order to solve the above-described problem, the authenticity determination apparatus of the present invention has a second receiving means for receiving a newly generated identification variable ID from the database apparatus, and the determination result by the determination means is true. In some cases, a transmission means is provided for transmitting a new identification variable ID received from the database device to the RFID tag.

  According to the present invention, when the determination result is true, a new identification variable ID received from the database device is transmitted to the RFID tag, thereby updating the true RFID tag with a new identification variable ID. It is possible to determine the authenticity of the article with high accuracy.

  In order to solve the above-mentioned problem, the authentication system of the present invention is an RFID tag that is attached to an article and wirelessly communicates with an authentication device, and receives an identification variable ID from the authentication device. A memory means for storing; a first receiving means for receiving request information for requesting transmission of the variable ID for identification from the device for authenticating at the time of determination; and the memory when receiving the request information. Transmission means for transmitting the identification variable ID read from the means to the authenticity determination device.

  According to the present invention, the identification variable ID is received from the authenticity determination device and stored in the memory means, and the request information for requesting transmission of the identification variable ID from the authenticity determination device is determined at the time of determination. When receiving, the identification variable ID read from the memory means is transmitted to the authenticity determination device, and the identification variable ID stored in the RFID tag is transmitted, whereby the article having the identification variable ID. It is possible to determine the authenticity of

  In order to solve the above-described problems, the authentication system of the present invention receives a new variable ID for identification from the authentication device when the determination result of the authentication device is true, and the memory It memorize | stores in a means, It is characterized by the above-mentioned.

  According to this invention, when the determination result of the authenticity determination device is true, a new identification variable ID is received from the authenticity determination device and stored in the memory means, so that it is stored in the RFID tag. The variable ID for identification can be updated to the latest one.

  In order to solve the above problems, the RFID tag of the present invention has a plurality of memory cells in which data is stored, and when the data is read from the memory cell, the memory cell It is characterized by comprising a non-volatile memory that performs destructive reading without leaving the data read.

  According to the present invention, at the time of computation, destructive reading is performed without leaving the identification code stored in the non-volatile memory, so that RFID tag duplication can be prevented.

  In order to solve the above-described problem, the authentication system of the present invention transmits the identification variable ID received from the database device via the communication line to the RFID tag attached to the article by wireless communication from the authentication device. The RFID tag is stored in the memory means, and the RFID tag receives the identification variable ID from the authentication apparatus and stores the identification tag from the authentication apparatus at the time of determination. A first receiving means for receiving request information for requesting transmission of a variable ID; and a transmitting means for transmitting the identification variable ID read from the memory means to the authenticity determination device, wherein the database device comprises: Storage means for generating and storing a unique identification variable ID, identification variable ID received from the RFID tag, and authenticity determination of the identification variable ID Whether or not the storage means has a second receiving means for receiving an inquiry request related to the authenticity determination device and an identification variable ID that matches the identification variable ID received by the second receiving means. And a first transmission means for transmitting the result of the search as a query result to the authenticity determination device, wherein the authenticity determination device receives a query result relating to the identification variable ID from the database device. 3, receiving means for determining the authenticity of the variable ID for identification based on the inquiry result received from the database device, and display means for displaying the determination result by the determining means. It is characterized by that.

  According to this invention, the RFID tag receives the identification variable ID from the authenticity determination device and stores it in the memory means, and at the time of determination, according to the request information of the identification variable ID from the authenticity determination device. The identification variable ID read from the memory means is transmitted to the authenticity determination device, and the database device generates and stores a unique identification variable ID, and the identification variable ID received from the RFID tag and the identification variable ID. The inquiry request for authenticity determination is received from the authenticity determination device, and it is searched whether there is an identification variable ID that matches the received identification variable ID in the storage means, and the result of this search is a query result. To the authenticity determination device. The authenticity determination device receives the inquiry result regarding the identification variable ID from the database device, and based on the inquiry result received from the database device, By displaying the determination result by determining the authenticity of the identification variable ID, it is possible to display the results to determine the authenticity of the article.

  For example, in a hotel cloakroom, airport, or the like, when searching for one's own bag from among a plurality of bags similar to the owner's bag, the authenticity of the target bag can be reliably determined.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The authenticity determination system according to the present invention will be described as applied to a system for determining the authenticity of a bag, for example, as shown in FIG.

  In FIG. 1, the authenticity determination system 11 includes a bag 12 in which an RFID tag 13 is built, and an authenticity determination possessed by an owner or a store in order to determine the authenticity of the bag 12 by communicating with the RFID tag 13 at a close distance. Mobile phone 18 for mediating data communication using packet data between terminal 14 for authentication, terminal 14 for authenticity determination via dedicated cable 17 and authentication terminal 14 and store DB 15; Between the wireless communication line 19 for providing the wireless communication service to the mobile phone 18, the communication line 16 connected to the wireless communication line 19 for providing the communication service, and between the communication line 16 and the store DB 15 The router 20 for setting the communication path and the store that sells the bag 12 to provide the identification information and the variable ID for identification to the authentication terminal 14 are installed. And a is shop for DB (database) 15. Note that the mobile phone 18 has a function of performing the Internet and electronic mail.

  In FIG. 1, when the bag 12 is sold, for example, the bag 12, the authenticity determination terminal 14, the mobile phone 18, and the store DB 15 are present in the store.

  On the other hand, after purchasing the bag 12, the owner holds the authenticity determination terminal 14 and the mobile phone 18. For example, in the case of a hotel cloakroom or airport, when the owner searches for his / her own bag 12 from a plurality of bags similar to the bag 12, or the authenticity of the possession of the bag is surely determined by the owner. Therefore, the authenticity determination terminal 14 is used.

  In FIG. 2, an RFID tag 13 is attached to a bag 12, and power is generated in the RFID tag 13 when electric power is generated when a fluctuating magnetic field is received from the authentication terminal 14 side via a coil antenna 13a. Unit 13b, a ferroelectric memory unit 13f composed of a non-volatile memory for storing identification information and identification variable ID received from authentication terminal 14, and a ferroelectric memory when power is supplied from power generation unit 13b The control unit 13g that reads the identification variable ID stored in the unit 13f and applies it to the modulation unit 13d, and the frequency shift (FSK) of the sine wave signal having a constant frequency based on the identification variable ID from the control unit 13g. ) Modulating unit 13d that modulates to form a plurality of sine wave signals of different frequencies in a predetermined order, and the output signal of modulating unit 13d from coil antenna 13a A transmitting unit 13c that radiates between them to form a varying magnetic field, a receiving unit 13h that receives the varying magnetic field from the authenticity determination terminal 14 side via the coil antenna 13a and outputs a received signal, and a reception from the receiving unit 13h It comprises a demodulator 13i that demodulates a signal and gives an output signal to the controller 13g, and a ROM (Read Only Memory) 13e that stores a control program.

  The modulation unit 13d includes a local oscillator that generates a sine wave signal having a constant frequency. Further, FeRAM is used for the ferroelectric memory portion 13f, and is housed in a resin case (not shown) together with the coil antenna 13a.

  In FIG. 3, an authenticity determination terminal 14 oscillates a sine wave signal having a constant frequency from a coil antenna 14a into a space to form a variable magnetic field, and a variable magnetic field from the RFID tag 13 via the coil antenna 14a. Receiving unit 14c, receiving unit 14c output signal demodulated by frequency discrimination, demodulating unit 14d detecting frequency of fluctuating magnetic field from RFID tag 13, constant based on identification variable ID from control unit 14f A modulation unit 14n that forms a plurality of different frequency sine wave signals in a predetermined order by frequency-shift-modulating a frequency sine wave signal, and radiates the output signal of the modulation unit 14n from the coil antenna 14a to the space to change the magnetic field. And the identification information including the variable ID for identification given to the owner by the store when the bag 12 is purchased. An EEPROM (Electrically Erasable Programmable Read Only Memory) 14e and the variable ID for identification from the RFID tag 13 obtained from the demodulator 14d are transferred to the store DB 15 and inquired, and based on the inquiry result returned from the store DB 15 A control unit 14f for determining the authenticity of the identification variable ID, a display unit 14g for displaying the authenticity of the bag 12 according to the above-described inquiry result of the identification variable ID by the control unit 14f, and a dedicated unit connected to the connector 14r. A communication processing unit 14h for performing data communication using packet data with the mobile phone 18 via the cable 17, an operation unit 14i for inputting operation information to the control unit 14f, and current time information RTC (Real Time C) given to the controller 14f lock) 14j, a ROM 14k that stores a program used for authenticity determination, and a RAM 14m that is used as a work memory by the control unit 14f.

  In FIG. 4, the store DB (database) 15 inputs data for each detailed item of the identification information, for example, a display processing unit 15 b for displaying an identification information input form (to be described later) on the monitor 15 a when the bag 12 is sold. To the controller 15d, the control unit 15d for storing the input identification information in the HD (hard disk) 15e and controlling the identification information read from the HD 15e to the communication processing unit 15f, and the router 20 The communication processing unit 15f is connected to perform communication processing, the ROM 15g stores a program used for control, and the RAM 15h is used as a work memory by the control unit 15d.

  When the bag 12, the authentication determination terminal 14 and the mobile phone 18 are both carried by the owner and are located at a remote location from the store, the authentication determination terminal 14 and the store DB 15 are connected to the mobile phone 18, wireless Communication is performed by connecting to the communication line 19, the communication line 16, and the router 20.

<First Configuration Example of Ferroelectric Memory Part 13f>
Here, a first configuration example of the ferroelectric memory unit 13f will be described. As shown in FIG. 5, a plurality of ferroelectric memory portions 13f are arranged on a substrate (chip) 50 in a matrix form with memory cells 100 in which a ferroelectric material is configured as a data storage memory. A selection line (hereinafter referred to as a word line (WL, Word Line)) 101 to which a selection signal S 1 for selecting an arbitrary memory cell 100 from among the memory cells 100 is supplied, and the memory cell 100 with a first signal. A first voltage supply line (hereinafter referred to as a bit line (BL, Bit Line)) 102 to which the voltage V1 is supplied, and a second voltage supply line (to which the second voltage V2 is supplied to the memory cell 100). Hereinafter, a selection signal S1 is supplied via the memory cell group 51 composed of a plate line (PL, Plate Line) 103 and the WL 101, and an arbitrary memory is provided. A data writing unit 52 that selects the recell 100 and writes data to the memory cell 100, and a selection signal S1 is supplied via the WL 101 to select an arbitrary memory cell 100, which is then written to the memory cell 100. A data reading unit 53 for reading data and a control unit 54 for controlling a data writing operation by the data writing unit 52 and for controlling a data reading operation by the data reading unit 53 are provided.

  In the memory cell 100, after data is inverted and read by the data reading unit 53, the data rewrite operation is not performed, and the state (inverted state) is maintained.

  Here, the configuration of the memory cell group 51 will be described in detail. As shown in FIG. 6, the memory cell group 51 includes a plurality of memory cells 100, a WL driving unit 104 that supplies a selection signal S1 to WL101, a BL driving unit 105 that supplies a first voltage V1 to BL102, And a PL drive unit 106 that supplies the second voltage V2 to the PL 103.

  As illustrated in FIG. 7, the memory cell 100 includes a transistor 110 and a capacitor 111 including a ferroelectric film (hereinafter referred to as a ferroelectric capacitor). WL101 is connected, BL102 is connected to the drain terminal (or source terminal) of the transistor 110, one terminal of the capacitor 111 is connected to the source terminal (or drain terminal) of the transistor 110, and the capacitor PL 103 is connected to the other terminal of 111. As a material for the ferroelectric capacitor, a perovskite compound system such as PZT (lead zirconate titanate) or a layered perovskite compound system such as SBZ (barium titanate / strontium) is used. In this embodiment, the memory cell 100 is a so-called 1T / 1C type, but is not limited to this, and may be, for example, a 2T / 2C type.

  The WL drive unit 104 includes a row direction address decoder, and supplies a potential according to data writing or reading to the address-selected WL 101.

  The BL driving unit 105 includes a column-direction address decoder and a sense amplifier, and supplies a potential according to data writing or reading to the address-selected BL 102. In addition, when reading data, the BL driving unit 105 amplifies the voltage supplied to the sense amplifier via the BL 102 in the sense amplifier, and outputs the amplified signal to the outside.

  The PL driving unit 106 includes a row-direction address decoder, and supplies a potential corresponding to data writing or reading to the PL 103 selected for address.

  Here, an operation of writing data in the memory cell 100 will be described. The data writing unit 52 supplies predetermined signals to the WL driving unit 104, the BL driving unit 105, and the PL driving unit 106 of the memory cell group 51 in accordance with the writing control by the control unit 54. The WL driving unit 104 selects an arbitrary WL 101 according to the signal supplied from the data writing unit 52 and supplies a predetermined selection signal to the selected WL 101. In the memory cell 100 on the WL 101 selected by the WL driving unit 104, the selection signal is supplied to the gate terminal, so that the transistor 110 is turned on.

  In addition, the BL driving unit 105 selects an arbitrary BL 102 according to the signal supplied from the data writing unit 52, and supplies the first voltage V1 to the selected BL 102. Further, the PL driving unit 106 supplies a predetermined second voltage V <b> 2 to an arbitrary PL 103 in accordance with the signal supplied from the data writing unit 52.

  For example, when 0V is applied as the first voltage V1 to BL102 and Vcc is applied as the second voltage V2 to PL103, "0" is written in the capacitor 111, and the first voltage V1 is applied to BL102. When Vcc is applied as PL2 and 0V is applied as the second voltage V2 to PL103, “1” is written in the capacitor 111.

  The capacitor 111 holds the written data (state) even when the WL 101 is in a non-selected state (the transistor 110 is in an OFF state).

  Next, an operation of reading data written in the memory cell 100 will be described. First, an address signal and a read control signal for reading are supplied from the outside. The supplied address signal is decoded into an X decode signal for selecting WL101 and PL103 by an address decode circuit unit (not shown), and is decoded into a Y decode signal for selecting a sense amplifier circuit and BL102. .

  The X decode signal is supplied to the WL drive unit 104 provided in the WL 101 and the PL drive unit 106 provided in the PL 103. The WL driving unit 104 selects an arbitrary WL 101 based on the X decode signal. Further, the PL driving unit 106 selects an arbitrary PL 103 based on the X decode signal.

  The Y decode signal is supplied to the BL driving unit 105 provided in the BL 102. The BL drive unit 105 selects an arbitrary BL 102 and sense amplifier circuit based on the Y decode signal.

  Further, the memory cell 100 in which the WL 101 and the PL 103 are selected in accordance with an address signal supplied from the outside outputs a voltage on the BL 102 according to the data stored in the capacitor 111.

  On the other hand, a read control signal supplied from the outside is supplied to the control unit 54 and used as a signal for controlling the timing for operating the BL 102 and the BL drive unit 105 (sense amplifier circuit).

  The voltage output on the BL 102 is amplified according to the timing for selecting the BL 102 by the control unit 54 and the timing for operating the sense amplifier circuit, and then output to the outside as read data.

  Further, the BL driving unit 105 selects an arbitrary BL 102 in accordance with the signal supplied from the data reading unit 53, and supplies the first voltage V1 to the selected BL 102. Further, the PL driving unit 106 supplies a predetermined second voltage V <b> 2 to any PL 103 in accordance with the signal supplied from the data reading unit 53.

  For example, when 0V is applied as the first voltage V1 to BL102 and Vcc is applied as the second voltage V2 to PL103, the voltage corresponding to the polarization state of the capacitor 111 is sensed by the BL driver 105 via BL102. Supplied to the amplifier.

  The sense amplifier determines “1” or “0” according to the supplied voltage and outputs it to the outside.

  Further, when “1” is read, the capacitor 111 is inverted from the polarization state “1” to the state “0”, and so-called destructive reading is performed to maintain this inversion state. Note that when “0” is read, the polarization state of the capacitor 111 does not invert, so that “0” is maintained even after the data is read.

  Therefore, the memory unit 10A according to the present invention does not have a function of performing a data rewriting operation that has been conventionally performed when performing inversion reading. Therefore, the data reading unit 33 causes data to be read from any memory cell 100. Is inverted, the data rewrite operation is not performed on the memory cell 100, and a state where a plurality of identical data exists can be avoided. In the case of a conventional configuration in which the same data remains on the memory after the data is read from the memory, the same data exists as many times as the number of times the data is read. In this case, there is a problem that data existing in duplicate is misused, which is an obstacle to security.

  Further, the ferroelectric memory unit 13fA may be configured such that the control unit 54 is not provided on the substrate 50 and the same control is performed by the external control unit.

  According to such a configuration, since the function of controlling the data writing unit 52 and the data reading unit 53 is not mounted on the substrate 50, the substrate 50 can be reduced in scale. Also in such a configuration, after the data is read out from the arbitrary memory cell 100 by the data reading unit 53, the data rewrite operation is not performed on the memory cell 100, and a plurality of the same data is stored. It is possible to avoid the state of being present.

<Second Configuration Example of Ferroelectric Memory Part 13f>
Next, a second configuration example of the ferroelectric memory unit 13f will be described below. The same components as those of the ferroelectric memory unit 13fA described above are denoted by the same reference numerals and detailed description thereof is omitted.

  As shown in FIG. 8, the ferroelectric memory unit 13fB includes a memory cell 100 in which a ferroelectric material is configured as a data storage memory and a plurality of memory cells arranged in a matrix on a substrate 50. WL101 to which a selection signal S1 for selecting an arbitrary memory cell 100 from the cells 100 is supplied, BL102 to which the first voltage V1 is supplied to the memory cell 100, and a second voltage V2 to the memory cell 100 are supplied. A memory cell group 51 constituted by the PL 103, a selection signal S1 supplied via the WL 101 to select an arbitrary memory cell 100, and a data writing unit 52 for writing data into the memory cell 100, WL 101 The selection signal S1 is supplied through the memory cell 100, an arbitrary memory cell 100 is selected, and data written in the memory cell 100 is read out. The data reading unit 53 and the data writing unit 52 control the data writing operation, and the data reading unit 53 controls the data reading operation, and the data reading unit 53 reads the data. A data rewrite control unit 55 is provided for controlling the data writing unit 52 so that the same data as the read data is rewritten in any memory cell 100.

  The data rewrite control unit 55 performs the data rewrite operation only when the operation check inspection of the memory cell group 51 is performed, and otherwise performs the data write unit 32 so as not to perform the rewrite operation. Control.

  Here, a data rewrite operation in the case where the operation check inspection of the memory cell group 51 is performed will be described. When “1” is read from the capacitor 111, the potential of the BL 102 is Vcc. In addition, the rewrite operation is performed within a predetermined period after the data is inverted and read.

  The data writing unit 52 supplies a predetermined signal to the PL driving unit 106 in accordance with the data rewriting control by the data rewriting control unit 55. The PL driving unit 106 sets the potential of the PL 103 to which the inverted capacitor 111 is connected to 0V. Therefore, a reverse bias is applied to the capacitor 111, and the original state “1” is rewritten.

  Therefore, the memory unit 10B according to the present invention can use the data rewrite control unit 55 mounted on the substrate 50 when performing an operation check inspection of the memory cell group 51 at the time of factory shipment. In addition, after the inspection is completed, the function of the data rewrite control unit 55 can be disabled (restricted). Therefore, the memory unit 10B according to the present invention performs a data rewrite operation on the memory cell 100 after the data is read out from the arbitrary memory cell 100 by the data reading unit 53 after the test is completed. Therefore, it is possible to avoid a situation in which a plurality of identical data exists.

  Further, the memory unit 10B may be configured such that the control unit 54 and the data rewrite control unit 55 are not provided on the substrate 50, and the same control is performed by the external control unit.

  According to such a configuration, since the function of controlling the data writing unit 52 and the data reading unit 53 is not mounted on the substrate 50, the substrate 50 can be reduced in scale. Even in such a configuration, when performing an operation check inspection of the memory cell group 51 at the time of factory shipment, the data rewrite control unit 55 mounted on the substrate 50 can be used. After the inspection, the function of the data rewrite control unit 55 can be disabled (restricted). Also in this configuration, after the test is completed, data is rewritten from any memory cell 100 by the data reading unit 53 and then no data rewrite operation is performed on the memory cell 100. It is possible to avoid a state where a plurality of identical data exists.

<Operation explanation of store DB at the time of sale>
Next, the operation of the store DB 15 will be described with reference to the block diagram shown in FIG. 4, the flowchart shown in FIG. 9, and the sequence diagram shown in FIG.

  When the bag 12 is sold, sales management documents are created by the store clerk. The sales management document includes a variable ID for identification used for authenticity confirmation, a purchase store code, purchase price data, purchase date data and time data, purchaser name data, and a mobile phone 18 carried by the purchaser. Identification information such as a telephone number is described. Instead of the telephone number in the identification information, an e-mail address, Internet authentication ID and password may be used.

  Therefore, the store clerk activates the store DB 15 in order to input the contents described in the document into the store DB 15. First, in step S10, a control program is read from the ROM 15g by the control unit 15d, screen data of the input form is input to the display processing unit 15b, an image signal of the input form is formed by the display processing unit 15b, and the monitor 15a. An input form is displayed.

  Next, in step S20, when the identification information described above is input from the keyboard 15c by the store clerk, the control unit 15d develops the input identification information on the input form, and the display processing unit 15b adds the identification information to the input form. The image signal thus formed is formed and displayed on the monitor 15a. At the same time, the identification information input from the keyboard 15c is stored by adding a record number from the control unit 15d to the hard disk HD15e.

  Here, the store clerk places the bag 12 and the authenticity determination terminal 14 in the vicinity of the store DB 15 and prepares for information transfer described later.

  Next, in step S40, the control unit 15d determines whether or not a transfer button (not shown) displayed on the display screen is clicked and turned on in response to an operation of a mouse (not shown) by the store clerk.

  Next, when the transfer button is turned on, the process proceeds to step S50, where the control unit 15d controls the communication processing unit 15f to perform data communication by designating the mail address of the purchaser's mobile phone 18, The identification information to be given to the purchaser is read from the hard disk HD 15e, an e-mail including this identification information is generated, and sent from the communication processing unit 15f to the Internet provider (not shown) via the router 20, the communication line 16, and the wireless communication line 19. Then, the mobile phone 18 receives the e-mail via the Internet provider, and forwards it to the authentication terminal 14 via the mobile phone 18 (ST50).

<Explanation of authentication terminal operation at the time of sale>
Next, the operation of the authenticity determination terminal 14 will be described with reference to the block diagram shown in FIG. 3, the flowchart shown in FIG. 10, and the sequence diagram shown in FIG. As described above, the bag 12, the authenticity determination terminal 14, and the mobile phone 18 are placed in the vicinity of the store DB 15 during information transfer.

  As described above, the store DB 15 and the authenticity determination terminal 14 are indirectly connected via the router 20, the communication line 16, the wireless communication line 19, and the mobile phone 18, and data transmitted from the store DB 15 is transmitted. It is transferred to the authentication terminal 14.

  First, in steps S110 to S120, the control unit 14f inputs data from the communication processing unit 14h, and determines whether there is transfer data by e-mail. If there is transfer data, the process proceeds to step S130.

  In steps S130 to S140, the control unit 14f stores the identification information included in the electronic mail received by the communication processing unit 14h in the EEPROM 14e.

  Next, in step S150, the control unit 14f determines whether or not a transfer key (not shown) provided in the authenticity determination terminal 14 is pressed by a store clerk and turned on. If the transfer key is turned on, the process proceeds to step S160, and the control unit 14f reads the identification information stored in the EEPROM 14e and outputs it to the RFID tag 13 so as to output it to the modulation unit 14n (ST160).

  Here, in the modulation unit 14n, for example, based on the variable ID for identification from the control unit 14f, a sine wave signal having a constant frequency is frequency-shift-modulated to form a plurality of sine wave signals having different frequencies in a predetermined order, An output signal from the modulation unit 14n is radiated to the space from the coil antenna 14a of the transmission unit 14p to form a variable magnetic field.

<Description of RFID tag operation at the time of sale>
Next, the operation of the RFID tag 13 will be described with reference to the block diagram shown in FIG. 2, the flowchart shown in FIG. 11, and the sequence diagram shown in FIG. As described above, the bag 12 and the authenticity determination terminal 14 are placed in the vicinity of the store DB 15 during information transfer.

  The RFID tag 13 is built in the bag 12, and when a transfer key provided in the authenticity determination terminal 14 is pressed, a variable magnetic field is generated in the space by the coil antenna 14a provided in the authenticity determination terminal 14. It is formed.

  At this time, in the RFID tag 13, power is generated by the power generation circuit 13 b when a fluctuating magnetic field is received from the authenticity determination terminal 14 side via the coil antenna 13 a. The power from the power generation circuit 13b is supplied to each unit.

  At the same time, the magnetic field from the authentication terminal 14 side is received via the coil antenna 13a, and the receiving unit 13h outputs the received signal to the demodulating unit 13i. The demodulating unit 13i demodulates the received signal from the receiving unit 13h. Then, an output signal is given to the control unit 13g.

  In step S210, control unit 13g receives the identification information output from demodulation unit 13i as history information (ST50).

  Next, in step S220, the control unit 13g determines the free capacity of the ferroelectric memory unit 13f, and determines whether or not the received history information can be written to the ferroelectric memory unit 13f. If it is determined that the ferroelectric memory unit 13f has free space and the received history information can be written, the process proceeds to step S240. On the other hand, if there is no free space in the ferroelectric memory unit 13f, the process proceeds to step S230.

  If there is no free space in the ferroelectric memory unit 13f, in step S230, the control unit 13g deletes the history information with the oldest date from the ferroelectric memory unit 13f.

  Next, in step S240, the control unit 13g stores the received identification information as history information in the ferroelectric memory unit 13f.

  As a result, in the ferroelectric memory unit 13f provided in the RFID 13 built in the bag 12, a variable ID for identification, a purchase store code, purchase price data, purchase date data and time for use in authenticity confirmation are stored. Identification information such as data, purchaser name data, and telephone number is stored.

<Explanation of RFID tag operation when carried>
Next, the operation of the RFID tag 13 will be described with reference to the block diagram shown in FIG. 2, the flowchart shown in FIG. 12, and the sequence diagram shown in FIG. When the bag 12 is carried by the owner, the authenticity determination terminal 14 connected to the mobile phone 18 is placed in the vicinity of the bag 12 when determining the authenticity of the bag 12.

  When authenticity determination is performed, the RFID tag 13 receives a fluctuating magnetic field from the authenticity determination terminal 14 side via the coil antenna 13a, and power is generated by the power generation unit 13b. The power from the power generation circuit 13b is supplied to each unit. At the same time, the magnetic field from the authentication terminal 14 side is received via the coil antenna 13a, and the receiving unit 13h outputs the received signal to the demodulating unit 13i. The demodulating unit 13i demodulates the received signal from the receiving unit 13h. Then, an output signal is given to the control unit 13g.

  First, in step S310, control unit 13g determines whether or not an identification variable ID request has been received based on data output from demodulation unit 13i (ST430).

  Next, in step S320, the control unit 13g reads the identification variable ID from the history information stored in the ferroelectric memory unit 13f, outputs the identification variable ID to the modulation unit 13d, and outputs a constant frequency sine. The wave signal is frequency-shift-modulated to form a plurality of different frequency sine wave signals in a predetermined order, and the output signal from the modulation unit 13d is radiated to the space from the coil antenna 13a by the transmission unit 13c to generate a variable magnetic field. Form (ST320). If the ferroelectric memory unit 13f is FeRAM in step S320, a destructive read operation is performed from the FeRAM and the memory cell group is erased.

  Next, in step S330, control unit 13g receives a new identification variable ID output from demodulation unit 13i (ST560). Next, in step S340, the control unit 13g stores the received new identification variable ID in the ferroelectric memory unit 13f.

<Explanation of operation of terminal for authenticity determination when portable>
Next, the operation of the authenticity determination terminal 14 will be described with reference to the block diagram shown in FIG. 3, the flowchart shown in FIG. 13, and the sequence diagram shown in FIG.

  Note that the bag 12, the authenticity determination terminal 14 and the mobile phone 18 are both carried by the owner and are remote from the store.

  In the authenticity determination terminal 14, in step S410, the control unit 14f generates identification variable ID request information and transmits it to the RFID tag 13 so as to output it to the modulation unit 14n (ST410).

  Next, in step S420, the control unit 14f receives the identification variable ID transmitted from the RFID tag 13 by the demodulation unit 14d and stores it in the RAM 14m (ST320).

  Next, in step S430, the control unit 14f transmits the identification variable ID received from the RFID tag 13 and stored in the RAM 14m to the store DB 15 to make an inquiry request. At this time, when the control unit 14f specifies the URL address of the store DB 15 and gives this URL address to the communication processing unit 14h, the mobile phone 18 that has received the URL address from the communication processing unit 14h is connected to the wireless communication line 19. A call is made to connect to the store DB 15 via the wireless communication line 19, the communication line 16, and the router 20, and the communication processing unit 14h transmits the identification variable ID and the inquiry request information to the store DB 15. At this time, the communication processing unit 14h gives the authentication ID and password to the mobile phone 18, and the mobile phone 18 transmits these pieces of information to the store DB 15 (ST430).

  Next, in step S440, the control unit 14f receives the inquiry result (inquiry OK flag or inquiry NG flag) transmitted from the store DB 15 via the communication processing unit 14h and the update data for the new variable ID for identification. It is received and stored in the RAM 14m (ST560).

    In step S460, the control unit 14f determines whether the inquiry result stored in the RAM 14m is an inquiry OK flag. If the inquiry OK flag is received, the process proceeds to step S470. On the other hand, if the inquiry NG flag is received, the process proceeds to step S480.

  Next, when the inquiry OK flag is received, in step S470, the control unit 14f determines that the bag 12 incorporating the RFID tag 13 is genuine, and generates and displays message data indicating that it is genuine. Displayed on the part 14g.

  Next, in step S475, the control unit 14f reads the new identification variable ID stored in the RAM 14m, and transmits it to the RFID tag 13 so as to output it to the modulation unit 14n (ST475).

  On the other hand, when the inquiry NG flag is received, in step S480, the control unit 14f determines that the bag 12 is a bag, so generates message data indicating that it is a bag and displays it on the display unit 14g. To do.

<Operation explanation of store DB when carrying>
Next, the operation of the store DB 15 will be described with reference to the block diagram shown in FIG. 4, the flowchart shown in FIG. 14, and the sequence diagram shown in FIG.

  When the authenticity determination terminal 14 passes the URL address of the store DB 15 to the mobile phone 18, the mobile phone 18 makes a call to the wireless communication line 19, via the wireless communication line 19, the communication line 16, and the router 20. Connected to the store DB 15. Thereafter, the mobile phone 18 that has received the variable ID for identification and the inquiry request information from the authenticity determination terminal 14 transmits the information to the store DB 15 (ST430).

  On the other hand, in the store DB 15, the control unit 15d activates an authentication dialog in accordance with the designated URL address. Here, in step S510, the control unit 15d receives the authentication ID and password of the owner received from the authenticity determination terminal 14 via the communication processing unit 15f, performs authentication processing, and authenticates when the authentication result is correct. The variable ID for identification and the inquiry request information are received from the determination terminal 14 and stored in the RAM 15h.

  Next, in step S520, the control unit 15d stores the identification variable ID corresponding to the identification variable ID read from the RAM 15h in the hard disk 15e in accordance with the inquiry request information received from the authenticity determination terminal 14. Search whether it is on the record.

  If the identification variable ID corresponding to the identification variable ID is stored in the hard disk 15e, the control unit 15d proceeds to step S530, generates an inquiry OK flag, and proceeds to step S540.

  Next, in step S540, the control unit 15d generates a new identification variable ID, and stores and stores the new identification variable ID on the same record of the hard disk HD15e.

  Next, in step S550, the control unit 15d generates the created new identification variable ID and inquiry OK flag in the packet data by the communication processing unit 15f, transmits the packet data from the communication processing unit 15f to the mobile phone 18, and authenticates the authentication terminal. 14 (ST560).

  On the other hand, if the corresponding identification variable ID is not stored in the hard disk 15e, the process proceeds to step S560, an inquiry NG flag is generated, and the process proceeds to step S570.

  Next, in step S570, control unit 15d transmits an inquiry NG flag from communication processing unit 15f to mobile phone 18, and forwards it to authenticity determination terminal 14 (ST570).

  In this way, the identification variable ID received from the store DB 15 is transmitted to the RFID tag 13 attached to the article, and at the time of authenticity determination, the transmission of the identification variable ID stored in the RFID tag 13 is requested. Then, the identification variable ID is received from the RFID tag 13, and an inquiry request regarding the authenticity determination of the identification variable ID received from the RFID tag 13 is added to the identification variable ID and transmitted to the store DB 15. Based on the inquiry result received from the DB 15, the authenticity of the identification variable ID is determined, and by displaying this determination result, the authenticity of the bag that is the object of the authenticity determination can be reliably determined.

  For example, in a hotel cloakroom, airport, or the like, when searching for one's own bag from among a plurality of bags similar to the owner's bag, the authenticity of the target bag can be reliably determined.

  Further, when the determination result is true, the new identification variable ID received from the store DB 15 is transmitted to the RFID tag 13 to update the true RFID tag 13 with a new identification variable ID. Therefore, the authenticity of the article can be determined with high accuracy.

  A request for receiving a variable ID for identification from the authentication terminal 14 and storing it in the ferroelectric memory unit 13f, and requesting the transmission of the identification variable ID from the authentication terminal 14 at the time of determination. When the information is received, the identification variable ID read from the ferroelectric memory unit 13f is transmitted to the authenticity determination terminal 14 so that the identification variable ID stored in the RFID tag 13 is transmitted. The authenticity of the article having this identification variable ID can be determined.

  Further, when the determination result of the authenticity determination terminal 14 is true, a new identification variable ID is received from the authenticity determination terminal 14 and stored in the ferroelectric memory unit 13f, so that it is stored in the RFID tag 13. The identification variable ID can be updated to the latest one.

  Further, since the destructive reading is performed without leaving the identification code stored in the nonvolatile memory during the calculation, the RFID tag 13 can be prevented from being duplicated.

  The RFID tag 13 receives the identification variable ID from the authenticity determination terminal 14 and stores it in the ferroelectric memory unit 13f. At the time of determination, the identification variable ID request information from the authentication determination terminal 14 Accordingly, the identification variable ID read from the ferroelectric memory unit 13f is transmitted to the authenticity determination terminal 14, and the store DB 15 generates and stores a unique identification variable ID, and the identification received from the RFID tag. The identification variable ID and the inquiry request for authenticity determination of the identification variable ID are received from the authentication determination terminal 14, and whether or not the identification variable ID matching the received identification variable ID is present in the hard disk HD15e. The search result is transmitted to the authenticity determination terminal 14 as a result of the search, and the authenticity determination terminal 14 receives the inquiry result regarding the identification variable ID from the store DB 15. Based on the query results received from the store DB 15, by displaying the determination result by determining the authenticity of the identification variable ID, it is possible to reliably determine the authenticity of the bag to be authenticity determination.

  For example, in a hotel cloakroom, airport, or the like, when searching for one's own bag from among a plurality of bags similar to the owner's bag, the authenticity of the target bag can be reliably determined.

<Other embodiments>
In the above embodiment, the mobile phone 18 is used to mediate data communication using packet data between the authenticity determination terminal 14 and the store DB 15, but the present invention is in such a case. However, the present invention is not limited to this, and the authenticity determination terminal 14 may be built in the mobile phone 18.

  In the above embodiment, the mobile phone 18 is used to mediate data communication using packet data between the authenticity determination terminal 14 and the store DB 15. The data is not limited to the case, and file data or mail data may be used as data to be converted into packet data.

  In the above embodiment, the store DB 15 provided in a store such as a merchandise store is used. However, the present invention is not limited to such a case. A database device that is provided to the manufacturer of the product through the role and plays the same role as the store DB 15 may be used.

  Further, in the above embodiment, the inquiry process is performed based on the identification variable ID issued by the store DB 15, but the present invention is not limited to such a case, and is fixedly individually. The identification code assigned to the owner may be added to the variable ID for identification, and the inquiry process as described above may be performed.

It is a block diagram for demonstrating the structure of the authentication system which concerns on embodiment of this invention. It is a block diagram for demonstrating the structure of the RFID tag 13 shown in FIG. It is a block diagram for demonstrating the structure of the terminal 14 for authenticity determination shown in FIG. It is a block diagram for demonstrating the structure of DB15 for shops shown in FIG. FIG. 3 is a block diagram illustrating a first configuration example of a ferroelectric memory unit illustrated in FIG. 2. FIG. 6 is a block diagram illustrating a configuration of a memory unit provided in the ferroelectric memory unit illustrated in FIG. 5. FIG. 7 is a block diagram showing a configuration of a memory cell provided in the ferroelectric memory unit shown in FIG. 6. FIG. 3 is a block diagram illustrating a second configuration example of the ferroelectric memory unit illustrated in FIG. 2. It is a flowchart for demonstrating operation | movement at the time of sale of DB15 for stores which concerns on embodiment of this invention. It is a flowchart for demonstrating operation | movement at the time of sale of the terminal 14 for authenticity determination which concerns on embodiment of this invention. It is a flowchart for demonstrating the operation | movement at the time of sale of the RFID tag 13 which concerns on embodiment of this invention. It is a flowchart for demonstrating operation | movement at the time of carrying of the RFID tag 13 which concerns on embodiment of this invention. It is a flowchart for demonstrating the operation | movement at the time of the carrying of the authentication terminal 14 which concerns on embodiment of this invention. It is a flowchart for demonstrating operation | movement of DB15 for shops which concerns on embodiment of this invention. It is the sequence diagram (a) at the time of sale for demonstrating operation | movement of the authentication system which concerns on embodiment of this invention, and the sequence diagram (b) at the time of carrying. It is a figure for demonstrating the prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Authentication system, 12 ... Bag, 13 ... RFID tag, 13a ... Coil antenna, 13b ... Electric power generation circuit, 13c ... Transmission part, 13d ... Modulation part, 13e ... ROM, 13f ... Ferroelectric memory part, 13g ... Control unit, 13h ... receiving unit, 13i ... demodulating unit, 14 ... terminal for authenticity determination, 14a ... coil antenna, 14b ... oscillating unit, 14c ... receiving unit, 14d ... demodulating unit, 14e ... EEPROM, 14f ... control unit, 14g Display unit 14h Communication processing unit 14i Operation unit 14k ROM 14m RAM 14n Modulation unit 14p Transmission unit 15a Monitor 14r Connector 15b Display processing unit 15c Keyboard , 15d: control unit, 15f: communication processing unit, 15g: ROM, 15h: RAM, 16: communication line, 17 ... dedicated cable, 18 ... mobile phone , 19 ... wireless communication line, 20 ... router

Claims (6)

A device for authenticity determination that transmits a variable ID for identification received from a database device via a communication line to an RFID tag attached to an article by wireless communication,
First transmission means for transmitting request information for requesting transmission of the identification variable ID stored in the RFID tag to the RFID tag;
Means for receiving a variable ID for identification from the RFID tag;
A second transmission means for adding an inquiry request for authenticity determination of the identification variable ID received from the RFID tag to the identification variable ID and transmitting it to the database device;
Receiving means for receiving a query result from the database device;
Determination means for determining the authenticity of the variable ID for identification based on the inquiry result received from the database device;
An apparatus for authenticity determination, comprising: display means for displaying a determination result by the determination means. In the apparatus for authenticity determination according to claim 1,
Second receiving means for receiving a variable ID for identification newly generated from the database device;
An apparatus for authenticity determination, comprising: a transmission means for transmitting a new identification variable ID received from the database device to the RFID tag when the determination result by the determination means is true. An RFID tag that is attached to an article and wirelessly communicates with an authentication device,
Memory means for receiving and storing the identification variable ID from the authenticity determination device;
A first receiving means for receiving request information for requesting transmission of the identification variable ID from the authenticity determination device at the time of determination;
An RFID tag comprising: a transmission unit that transmits the identification variable ID read from the memory unit to the authenticity determination device when the request information is received. The RFID tag according to claim 3, wherein
An RFID tag, wherein when the determination result of the authenticity determination device is true, a new identification variable ID is received from the authenticity determination device and stored in the memory means. The RFID tag according to claim 3, wherein
The memory means includes
It comprises a non-volatile memory having a plurality of memory cells in which data is stored and performing destructive reading without leaving the read data in the memory cell when the data is read from the memory cell. RFID tag. An authentication system for transmitting a variable ID for identification received from a database device via a communication line to an RFID tag attached to an article by wireless communication from an authentication device and storing it in a memory means,
The RFID tag is
Memory means for receiving and storing the identification variable ID from the authenticity determination device;
A first receiving means for receiving request information for requesting transmission of the identification variable ID from the authenticity determination device at the time of determination;
Transmission means for transmitting the identification variable ID read from the memory means to the authenticity determination device,
The database device includes:
Storage means for generating and storing a unique identification variable ID;
A second receiving means for receiving the identification variable ID received from the RFID tag and the inquiry request for authenticity determination of the identification variable ID from the authenticity determination device;
Search means for searching whether the storage means has an identification variable ID that matches the identification variable ID received by the second reception means;
First search means for transmitting the result of this search to the device for authenticity determination as a query result,
The authenticity determination device includes:
Third receiving means for receiving a query result relating to an identification variable ID from the database device;
Determination means for determining the authenticity of the variable ID for identification based on the inquiry result received from the database device;
An apparatus for authenticity determination, comprising: display means for displaying a determination result by the determination means.

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