JP5504729B2 - Books with invisible marks - Google Patents

Description

  The present invention relates to a technique for preventing an erroneous purchase of an illegally acquired book or an erroneous return of a book in circulation of the book.

  Usually, a book is distributed and sold from a publisher to a bookstore through an agency. There are two types of book sales: consignment sales and responsible sales. In the case of consignment sales, unsold books can be returned to a secondary store, whereas in the case of responsible sales, the unsold books cannot be returned to a secondary store. Since a large number of books are returned from the bookstore to the agency, it is necessary to inspect whether or not it can be returned, and a technique for performing this inspection has also been proposed (see Patent Document 1). ).

JP 2003-48375 A

  On the other hand, the number of new and old book stores that purchase books once sold at book stores and sell them as new used books has been increasing for several years. A lot of books are brought into the Shinko bookstore, but there is a problem in that it cannot be determined whether or not the books brought in are illegally acquired by shoplifting or the like, and it must be bought. There is also a problem that when a book is returned from a bookstore, the book of responsible sales is mistakenly returned in the book of consignment sales.

In view of the above points, the present invention has an invisible mark that can discriminate illegally acquired books at a purchasing store such as a Shinko bookstore and prevent erroneous return to a brokerage store. it is an object of the present invention to provide a written citizenship.

In order to solve the above problems, in the present invention, the first invisible mark and the second invisible mark that are visualized by causing a predetermined action are formed on a part of the book, and the first invisible mark is formed by printing in agency, a bookstore code and transaction form is invisible bar codes recorded, the second invisible mark is characterized der Rukoto those formed by stamping the bookstore Books I will provide a.

  According to the book of the present invention, since the two invisible marks formed on a part of the book are visualized by causing a predetermined action, it can be purchased properly by confirming the number of visualized marks. Thus, it is possible to check whether or not the book is illegally purchased, and it is possible to prevent an illegally acquired book from being purchased by mistake.

  According to the book of the present invention, one of the two invisible marks formed on a part of the book is an invisible bar code, and the bookstore code and the transaction form are recorded. Thus, it can be confirmed whether the book has been properly returned, and erroneous return from the bookstore can be prevented.

  According to the present invention, in the book, the second invisible mark is an invisible bar code in which a bookstore code or a symbol that can identify the bookstore is recorded.

  According to the book of the present invention, the second invisible mark formed on a part of the book is an invisible barcode, and a bookstore code or a symbol that can identify the bookstore is recorded. By reading a bookstore code or a symbol that can be specified by the bookstore at the store, it is possible to confirm at which bookstore the item was purchased.

  ADVANTAGE OF THE INVENTION According to this invention, it is effective in the ability to discriminate | determine the illegally acquired book in a purchase store like a new old bookstore, and to prevent the erroneous return to an agency store.

It is a figure which shows the distribution channel of a book. 1 is an external perspective view of a book according to a first embodiment of the present invention. It is a block diagram of the book attribute discrimination | determination system which concerns on the 2nd Embodiment of this invention. It is a figure which shows the registration information of a book distribution database. It is an external appearance perspective view of the book which concerns on the 2nd Embodiment of this invention. It is an external appearance perspective view of the book which concerns on the 3rd, 4th embodiment of this invention. It is a block diagram of the book attribute discrimination | determination system which concerns on the 4th Embodiment of this invention.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
(1. Distribution of books)
First, the distribution of books including Shinko bookstore will be explained. FIG. 1 is a diagram showing a distribution route of books. Books issued by the publisher are sent to the agency, and further sent from the agency to each bookstore. Each bookstore sells books to readers. In some cases, the reader brings the book that has been read to a new old book store to be purchased. On the other hand, among the books that are unsold at the bookstore, those that are consigned are returned to the agency. The distribution channel of the books shown in FIG. 1 is common in the following embodiments. Hereinafter, four embodiments will be described with respect to erroneous purchase and return in the distribution channel of books.

(2. First Embodiment)
A first embodiment will be described. First, a bar code is printed on a target book with a special invisible ink at a dealer. In FIG. 2A, the dotted rectangle shown on the front cover of the book (either front cover or back cover is possible) indicates the barcode C1 printed with invisible ink. The invisible ink may be any ink that emits light by taking some means, but in the present embodiment, ultraviolet light emitting ink that emits light when irradiated with ultraviolet light is used. Since the barcode C1 is not visible in a normal state, the appearance of the book is not impaired. The barcode C1 is not limited to the cover as long as it is a part of the book, and the back and the back of the cover (when the front cover and the back cover are referred to as Table 1 and Table 4, respectively, the portions referred to as Table 2 and Table 3). It may be formed on the back, facing, etc. However, it is necessary to determine a location with the new old bookstore in order to identify the place where the ultraviolet rays are irradiated in the new old bookstore. In the bar code C1, a bookstore code for specifying the bookstore and a transaction form (either consignment sales or responsible sales) are recorded.

  The book on which the barcode C1 is printed is sent to the bookstore. In a bookstore, when selling a book, barcode C2 is given to the cover of the book with a stamp using invisible ink. As shown in FIG. 2B, a barcode C2 formed with invisible ink is applied. The barcode C1 and the barcode C2 are desirably formed close to each other so that they can be easily confirmed at a glance. The invisible ink that forms the barcode C2 may be any ink that emits light by taking some means, but it is desirable to use the same ink as the barcode C1. This is because two barcodes are visualized by taking one measure. Therefore, in the present embodiment, the same ultraviolet light emitting ink as the barcode C1 is used for the barcode C2. However, the barcode C1 is formed of ultraviolet light emitting ink, the barcode C2 is formed of infrared light emitting ink, or the barcode C1 is formed of infrared light emitting ink, and the barcode C2 is formed of ultraviolet light emitting ink. The code C1 and the bar code C2 may be formed of different invisible inks. In this case, only one bar code can be visualized by taking one means. However, a means for visualization is specified in the new old book store and the agency store, which will be described later, and one of the bar codes (new old book store) is specified. If the barcode C2 can be visualized, and the barcode C1) can be visualized at the agency, it can be confirmed that there is no fraud. In the barcode C2, a bookstore code for specifying the bookstore is recorded. When the reader purchases the barcode C2, the store clerk stamps it in exchange for the price. For this reason, the barcode C2 is not given to a book illegally acquired by shoplifting or the like. The barcode C2 may be printed by a known barcode printer.

  A reader may bring a book that has been read after purchase at a bookstore to a new old bookstore. In the Shinko bookstore, when buying a book that has been brought in, the store clerk irradiates the cover with ultraviolet rays using an ultraviolet light emitting device (for example, black light). By the light emission by the ultraviolet light emitting device, the barcode C1 and the barcode C2 formed of ultraviolet light emitting ink emit light as visible light. The store clerk confirms that the barcode C2 exists, determines that the book is a legitimately acquired book, and proceeds with the purchase operation. Since the bar code C1 is always given when shipped from the agency, the store clerk does not need to recognize that the bar code C2 exists, but recognizes that there are two bar codes. It's enough.

  If the barcode C2 cannot be confirmed when the cover is illuminated with black light, that is, if there is only one barcode, it is determined that the book has been obtained by unauthorized means, and the clerk Accepts or rejects the purchase. In this way, by buying only books that have been properly acquired, it is possible to prevent books acquired by unauthorized means from being accidentally purchased by a new old book store and distributed to the market.

  Next, prevention of erroneous return from the bookstore to the agency will be described. In order to prevent erroneous copying, a system in which a belt conveyor, a sorting mechanism, a barcode reader and the like are connected to a computer is used. The computer of this system incorporates a dedicated program for executing processing to be described later. When returning books from the bookstore to the agent store, a large number of books are brought in at the bookstore unit, so after entering the bookstore code in the above system, the agent book is placed on the belt conveyor with the cover facing up. Shed. When the system is activated, the books flowing on the belt conveyor are irradiated with ultraviolet rays by an ultraviolet light emitting device, and the emitted barcode C1 is read by a barcode reader. As such a barcode reader, a “high-speed barcode scanner” MS-9 manufactured by Microscan can be used. The computer acquires a bookstore code and a transaction form from the read barcode C1. Then, the computer collates the input bookstore code with the acquired bookstore code, and if the two do not match, the computer determines that the book is an incorrect return. Even if the input bookstore code matches the acquired bookstore code, it is determined whether the transaction form acquired from the barcode C1 indicates “consignment sale” or “responsible sales”. However, if it indicates “responsible sales,” it is determined that the book is an incorrect return. Note that either the determination based on the bookstore code or the determination based on the transaction form may be set to be performed first. This is because, in the end, if either one does not satisfy the condition, it may be determined that it is an erroneous return. Further, only the transaction form may be determined simply without collating the bookstore code. In this case, it is not necessary to input a bookstore code to the computer.

  In the present embodiment, the barcode C2 is used by a salesperson of a new old bookstore to confirm the presence thereof, and therefore may be a simple mark instead of a barcode. That is, it is only necessary that some form, pattern, or the like is formed with invisible ink. In this case, the mark corresponding to the barcode C2 is intended to be confirmed by the store clerk visually, so that the shape itself is easy to grasp and may be imitated. Therefore, it is desirable to change the shape of the mark corresponding to the barcode C2 at regular intervals such as half a year or one year. However, it is also possible to record information on the barcode C2 and use the information. For example, if a bar code stamp that records the book store code of the book store that sells the book is prepared and stamped at the time of sale, the bar code C2 added to the cover includes the book store code of the book store that sold the book. Is recorded. When purchasing at a new old bookstore, the bar code reader is used to read the bar code C2 and display the recorded bookstore code on the terminal of the new old bookstore. In addition to confirming whether the book is a book, it is also possible to confirm at which bookstore the book is sold.

(3. Second embodiment)
Next, a second embodiment will be described. In the second embodiment, a book attribute discrimination system as shown in FIG. 3 is used. In FIG. 3, 10 is a book distribution database, 20 is a management server, 30 is an agency terminal, 40 is a bookstore terminal, and 50 is a new old bookstore terminal. The book distribution database 10 is a database in which information on books distributed to the market via a dealer is recorded, and is realized by an external storage device such as a hard disk connected to the management server 20. As shown in FIG. 4, the book distribution database 10 includes a serial code that identifies each individual book, a bookstore code that identifies a bookstore, a transaction form that indicates consignment sales or responsible sales, and a sale that has been sold. Manage information items. The management server 20 manages the book distribution database 10, registers information in the book distribution database 10 in response to requests from the agency store terminal 30, the bookstore terminal 40, and the new old bookstore terminal 50, and stores information from the book distribution database 10. This is a computer to be extracted, and is realized by incorporating a dedicated program into a general-purpose computer. The agency store terminal 30, the bookstore terminal 40, and the new old bookstore terminal 50 are all connected to the management server 20 via a network such as the Internet so that data can be transmitted and received, and are realized by incorporating a dedicated program into a general-purpose computer. The The agency terminal 30 is connected to a barcode reader corresponding to invisible ink, an ultraviolet light emitting device, a belt conveyor, and a book sorting mechanism. The bookstore terminal 40 is connected with a barcode reader corresponding to invisible ink and an ultraviolet light emitting device. A bar code reader corresponding to invisible ink and an ultraviolet light emitting device are connected to the new old bookstore terminal 50.

  Also in the second embodiment, as in the first embodiment, barcodes are printed on the target book with a special invisible ink at the agency. In FIG. 5, a dotted rectangle shown on the cover of the book indicates a barcode C3 printed with invisible ink. As in the first embodiment, this invisible ink may be anything as long as it emits light by taking some means, but in this embodiment, it emits ultraviolet light that emits light when irradiated with ultraviolet light. Ink is used. Since the bar code C3 is not visible in a normal state, the appearance of the book is not impaired. A different serial code is recorded in the barcode C3 for each individual book. The barcode C3 in the second embodiment records a serial code unique to each individual, and it is not necessary to know the destination bookstore or transaction form, so the barcode in the first embodiment Unlike C1, it is not always necessary to print at an agency, and printing may be performed at a previous printing company or the like. In the second embodiment, unlike the first embodiment, when one barcode C3 is printed, the barcode is not given to the book thereafter.

  The agency stores the bookstore code and transaction form in the book distribution database in association with the serial code assigned to each individual. Specifically, when the bookstore code and transaction form are input together with the serial code to the agency store terminal 30 and a database registration instruction is given, the agency terminal 30 manages the input serial code, bookstore code, and transaction form. Send to server 20. The management server 20 registers the received serial code, bookstore code, and transaction form in the book distribution database 10 in association with each other. The bookstore code and transaction form are the same as those shown in the first embodiment. When registration in the book distribution database 10 is completed, the book on which the barcode C3 is printed is sent to the bookstore.

  In the bookstore, when selling a book, the management server 20 is accessed from the bookstore terminal 40 and the sold information is added to the book distribution database 10. Specifically, the serial code recorded on the barcode C3 is read from a predetermined position on the cover of the book with a barcode reader corresponding to the invisible ink connected to the bookstore terminal 40, and the store clerk enters the bookstore terminal 40. Give sold instructions to the customer. Then, the bookstore terminal 40 transmits a data registration request to the management server 20 together with the read serial code and sold information. The management server 20 registers the received serial code and the sold information in the book distribution database 10 in association with each other.

  When purchasing a book brought in from a reader at a new old bookstore, it is checked whether the book has been properly sold. Specifically, the barcode reader corresponding to the invisible ink connected to the new old bookstore terminal 50 reads the serial code recorded on the barcode C3 from a predetermined position on the cover of the book, and the store clerk reads the new old bookstore terminal. 50 is instructed to confirm sold information. Then, the new old bookstore terminal 50 transmits a request for transmitting sold information to the management server 20 together with the read serial code. The management server 20 acquires sold information corresponding to the received serial code from the book distribution database 10 and sends it back to the new old bookstore terminal 50.

  In the new old bookstore terminal 50, when the sold information is received, the received sold information is displayed on the screen. The sold information can be displayed in various ways that can be recognized by the store clerk. For example, if the received sold information indicates that it has already been sold, a display such as “Regularly sold” is displayed, and if the sold information indicates that it has not been sold yet. , “Not sold” is displayed. Thereby, the store clerk can confirm whether the brought-in book is what was purchased legally. As a result, only books that have been properly acquired are purchased, and books acquired by unauthorized means can be prevented from being accidentally purchased by new old book stores and distributed to the market.

  Next, prevention of erroneous return from the bookstore to the agency will be described. When a book is returned from the bookstore to the agent store, a large number of books are brought in at the bookstore unit. Therefore, after entering the bookstore code at the agent store terminal 30 at the agent store, the brought book is placed with the cover facing up and the belt. Flow on the conveyor. Based on a command from the agency terminal 30, the book flowing on the belt conveyor is irradiated with ultraviolet rays by an ultraviolet light emitting device, and the emitted barcode C3 is read by a barcode reader. The agency store terminal 30 acquires a serial code from the read barcode C3. The agency store terminal 30 transmits a corresponding information transmission request to the management server 20 together with the acquired serial code. The management server 20 acquires the bookstore code, transaction form, and sold information corresponding to the received serial code from the book distribution database 10, and sends it back to the agency terminal 30.

  The agency store terminal 30 collates the bookstore code acquired from the book distribution database 10 with the bookstore code directly input to the agency store terminal 30, and if the two do not match, the agency store terminal 30 determines that the book is an incorrect return. . When the received bookstore code matches the input bookstore code, the agency terminal 30 indicates whether the transaction form acquired from the book distribution database 10 indicates “consignment sale” or “responsible sale”. If it indicates “responsible sales”, it is determined that the book is an incorrect return. When the transaction form indicates “consignment sale”, the agency terminal 30 indicates whether the sold information acquired from the book distribution database 10 indicates “already sold” or “still sold”. It is determined whether or not the book is “not yet sold”, and if the book is “not yet sold”, it is determined that the book is an erroneous return.

  The determination based on the bookstore code, the determination based on the transaction form, and the determination based on the sold information may be performed in any order. This is because, when one of them does not satisfy the condition, it may be determined that it is an erroneous return. Further, for simplicity, any two or any one of these three items may be determined. If the bookstore code is not collated, it is not necessary to input the bookstore code to the agency terminal 30.

(4. Third embodiment)
Next, a third embodiment will be described. In the third embodiment, a non-contact IC tag (also referred to as an RFID tag) is used in place of the invisible barcode in the first embodiment. First, an IC tag T1 is added to each book at a printing / binding company. As an additional mode, various types can be used, but in this embodiment, the inside of the cover having a double structure is sealed. FIG. 6 shows an external perspective view of a book according to the third embodiment.

  In the agency store which received the book to which IC tag T1 was added, a bookstore code and a transaction form are given to IC tag T1 of each book. Specifically, the bookstore code and the transaction form are input to the terminal of the agency store, and the bookstore code and the transaction form are sequentially written in the user memory in each IC tag using an IC tag writer.

  The book whose bookstore code and transaction form are recorded on the IC tag T1 is sent to the bookstore. In the bookstore, when selling the book, the sold information is added to the IC tag T1 added to the cover of the book. Specifically, the sold information is recorded on the IC tag T1 using an IC tag writer connected to the terminal of the agency. Since sales information is recorded with 1-bit information indicating whether or not it has been sold, it can be recorded in various ways. For example, although it can be recorded at a predetermined position of the user memory in the IC tag, since the user memory takes time to process, in this embodiment, one bit of the functional area in the IC tag having a high processing speed is set. We are using. Therefore, in this embodiment, the sold information is recorded by changing the value of a predetermined bit of the functional area in the IC tag T1.

  When purchasing a book brought in from a reader at a new old bookstore, it is checked whether the book has been properly sold. Specifically, the sold information is read from the IC tag T1 added to the cover of the book with an IC tag reader connected to the terminal of the Shinko bookstore. As described above, in the present embodiment, the value of the predetermined bit in the functional area in the IC tag T1 is read. Then, the terminal of the new old bookstore displays the sold information read by the IC tag reader on the screen. The sold information can be displayed in various ways that can be recognized by the store clerk. For example, if the received sold information indicates that it has already been sold, a display such as “Regularly sold” is displayed, and if the sold information indicates that it has not been sold yet. , “Not sold” is displayed. Thereby, the store clerk can confirm whether the brought-in book is what was purchased legally. As a result, only books that have been properly acquired are purchased, and books acquired by unauthorized means can be prevented from being accidentally purchased by new old book stores and distributed to the market.

  Next, prevention of erroneous return from the bookstore to the agency will be described. In order to prevent erroneous return, a system in which a belt conveyor, a sorting mechanism, an IC tag reader, and the like are connected to a computer is used. The computer of this system incorporates a dedicated program for executing processing to be described later. When returning books from a bookstore to an agency, a large number of books are brought in at the bookstore unit, so after entering the bookstore code on the computer, the agency places the books on the belt conveyor with the cover facing up. Shed. When the system is activated, the IC tag reader reads information recorded on the IC tag T1 attached to the book flowing on the belt conveyor. Thereby, the computer acquires the bookstore code, the transaction form, and the sold information from the IC tag T1. Then, the computer collates the input bookstore code with the acquired bookstore code, and if the two do not match, the computer determines that the book is an incorrect return. When the input bookstore code matches the acquired bookstore code, the computer determines whether the transaction form acquired from the bar code C3 indicates “consignment sales” or “responsible sales”. If it indicates “responsible sales”, it is determined that the book is an incorrect return. When the transaction form indicates “consignment sale”, the computer indicates that the sold information acquired from the IC tag T1 indicates “already sold” or “not yet sold” If it indicates “not yet sold”, it is determined that the book is an incorrect return.

  In the third embodiment, as in the second embodiment, the determination based on the bookstore code, the determination based on the transaction form, and the determination based on the sold information may be performed in any order. This is because, when one of them does not satisfy the condition, it may be determined that it is an erroneous return. In addition, for simplicity, any two or any one of these three items may be determined. If the bookstore code is not collated, it is not necessary to input the bookstore code to the computer.

(5. Fourth embodiment)
Next, a fourth embodiment will be described. In the fourth embodiment, a book attribute discrimination system as shown in FIG. 7 is used. The book attribute discrimination system shown in FIG. 7 has substantially the same function as the book attribute discrimination system shown in FIG. 3, but differs only in the part corresponding to the IC tag attached to the book. In FIG. 7, the same components as those in the book attribute discrimination system shown in FIG. The agency store terminal 31 is connected to an IC tag reader, an IC tag writer, a belt conveyor, and a book sorting mechanism corresponding to the IC tag. Since an IC tag reader / writer that reads and writes is generally used as the IC tag reader and IC tag writer, this is actually used. An IC tag reader corresponding to the IC tag is connected to the bookstore terminal 41. An IC tag reader corresponding to an IC tag is connected to the new old bookstore terminal 51.

  In the fourth embodiment, an IC tag is used instead of the invisible barcode in the second embodiment. First, an IC tag T2 is added to each book at a printing / binding company. As an additional mode, various types can be used. In the present embodiment, as in the third embodiment, the cover is enclosed in a double cover.

  At the agency that received the book with the IC tag T2 added, a serial code is given to the IC tag T2 of each book. Specifically, the serial code is input to the agency terminal 31 and the serial code is sequentially written into the user memory in each IC tag using an IC tag writer. The IC tag T2 in the fourth embodiment records a serial code unique to each individual, and it is not necessary to know the bookstore of the destination and the transaction form, so the IC tag in the third embodiment Unlike T1, it is not always necessary to record a serial code, and it may be recorded by a printing company or the like before that. The IC tag has a unique ID recorded by the manufacturer of the IC tag, and this unique ID may be used as it is as a serial code. In this case, it is not necessary to input a serial code.

  The agency stores the bookstore code and transaction form in the book distribution database in association with the serial code recorded on each IC tag T2. Specifically, when the bookstore code and the transaction form are input together with the serial code to the agency store terminal 31 and the database registration instruction is given, the agency store terminal 31 manages the input serial code, bookstore code, and transaction form. Send to server 20. The management server 20 registers the received serial code, bookstore code, and transaction form in the book distribution database 10 in association with each other. The bookstore code and the transaction form are the same as those shown in the first to third embodiments. When registration in the book distribution database 10 is completed, the book with the IC tag T2 added is sent to the bookstore.

  In the bookstore, when selling a book, the management server 20 is accessed from the bookstore terminal 41 and the sold information is added to the book distribution database 10. Specifically, the IC tag reader connected to the bookstore terminal 41 reads the serial code recorded from the IC tag T2 attached to the cover of the book, and the store clerk gives a sold instruction to the bookstore terminal 41. give. Then, the bookstore terminal transmits a data registration request to the management server 20 together with the read serial code and sold information. The management server 20 registers the received serial code and the sold information in the book distribution database 10 in association with each other.

  When purchasing a book brought in from a reader at a new old bookstore, it is checked whether the book has been properly sold. Specifically, the serial code is read from the IC tag T2 added to the cover of the book by the IC tag reader connected to the new old bookstore terminal 51. As described above, in this embodiment, data is read from the user memory in the IC tag T2. Then, the store clerk gives an instruction to confirm the sold information to the new old book store terminal 51. Then, the new old bookstore terminal 51 transmits a request for transmitting sold information to the management server 20 together with the read serial code. Is sent to the book distribution database. The management server 20 acquires sold information corresponding to the received serial code from the book distribution database 10 and sends it back to the new old bookstore terminal 51.

  In the new old bookstore terminal 51, when the sold information is received, the received sold information is displayed on the screen. The sold information can be displayed in various ways that can be recognized by the store clerk. For example, if the received sold information indicates that it has already been sold, a display such as “Regularly sold” is displayed, and if the sold information indicates that it has not been sold yet. , “Not sold” is displayed. Thereby, the store clerk can confirm whether the brought-in book is what was purchased legally. As a result, only books that have been properly acquired are purchased, and books acquired by unauthorized means can be prevented from being accidentally purchased by new old book stores and distributed to the market.

  Next, prevention of erroneous return from the bookstore to the agency will be described. When a book is returned from the bookstore to the agent store, a large number of books are brought in at the bookstore unit. Therefore, after entering the bookstore code in the agent store terminal 31 at the agent store, the brought book is placed with the cover facing up and the belt. Flow on the conveyor. When the system is activated, information recorded on the IC tag T2 attached to the book flowing on the belt conveyor is read by an IC tag reader connected to the agency terminal 31. Thereby, the system acquires the serial code from the IC tag T2. The agency store terminal 31 transmits a request for transmitting the corresponding information to the management server 20 together with the acquired serial code. The management server 20 acquires the bookstore code, transaction form, and sold information corresponding to the received serial code from the book distribution database 10, and sends it back to the agency terminal 31.

  The agency store terminal 31 collates the bookstore code acquired from the book distribution database 10 with the bookstore code directly input to the agency store terminal 30, and determines that the book is an incorrect return if they do not match. . When the received bookstore code matches the input bookstore code, the agency terminal 31 indicates whether the transaction form acquired from the book distribution database 10 indicates “consignment sale” or “responsible sale”. If it indicates “responsible sales”, it is determined that the book is an incorrect return. When the transaction form indicates “consignment sale”, the agency terminal 31 indicates whether the sold information acquired from the book distribution database 10 indicates “already sold” or “still sold”. It is determined whether or not the book is “not yet sold”, and if the book is “not yet sold”, it is determined that the book is an erroneous return.

  In the fourth embodiment, as in the second and third embodiments, the determination based on the bookstore code, the determination based on the transaction form, and the determination based on the sold information may be performed in any order. . This is because, when one of them does not satisfy the condition, it may be determined that it is an erroneous return. In addition, for simplicity, any two or any one of these three items may be determined. If the bookstore code is not collated, it is not necessary to input the bookstore code to the agency terminal 31.

(6. Modifications)
The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made. For example, as the barcode shown in the first and second embodiments, a two-dimensional barcode such as a QR code may be used in addition to the one-dimensional barcode. In addition, a symbol that can identify the bookstore may be recorded in the barcode instead of the bookstore code or in addition to the bookstore code. Here, the symbol means a symbol such as an emblem, a logo mark, or a design. When recording a symbol, it is desirable to use a two-dimensional barcode having a large recording capacity as the barcode.

  INDUSTRIAL APPLICABILITY The present invention can be used for preventing erroneous purchase of an illegally acquired book and prevention of erroneous return from a book store to an agent store in a book distribution process.

DESCRIPTION OF SYMBOLS 10 ... Book distribution database 20 ... Management server 30, 31 ... Agency store terminal 40, 41 ... Bookstore terminal 50, 51 ... New old bookstore terminal C1-C3 ... Barcode T1, T2 ... IC tags

Claims (2)

A first invisible mark and a second invisible mark that are visualized by causing a predetermined action are formed on a part of the book,
The first invisible mark is formed by printing in agency, Ri Oh invisible bar code bookstores code and transaction form is recorded,
The second invisible mark, books, characterized in der Rukoto those formed by stamping in bookstores.   The book according to claim 1, wherein the second invisible mark is an invisible bar code in which a bookstore code or a symbol that can be specified by the bookstore is recorded.

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