JP2008046843A - Seal with authentication function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seal for forming an actual seal impression on an impress object such as paper, and for preventing the unauthorized use of the seal. <P>SOLUTION: The fingerprint information of the finger of a hand which grips a case 12 forming a seal 10 main body with an authentication function is acquired through a fingerprint authentication window 18 by a fingerprint detection sensor 40, and collated with the fingerprint information of a normal user preliminarily registered by a storage part 38. As the result of collation, only when it is confirmed that the user who grips the case 12 is the normal user of the seal 10 with the authentication function, a control part 36 controls an ink jet unit 26 to form a registered seal impression on an impress object such as paper. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an improvement of a seal, in particular, a seal that enables imprinting with an actual seal while preventing unauthorized use.

  Conventionally, a stamp with a predetermined seal has been used in order to prove that the written contents of the document have been confirmed or that the written contents have been approved. With this seal, the document creator, the document checker, and the third party can prove that the contents of the document have been approved by the sealant.

In recent years, a document is often created electronically and stored as an electronic file. In such a case, an electronic seal stamp system that electronically stamps on an electronic file is also actively used (see, for example, Patent Document 1). This system inserts seal data into an electronic file when the user to be stamped is authenticated as an authorized user of an electronic seal stamp.
JP 2004-214792 A

  However, in the case of electronic files, it is premised on the use of computer equipment, and a countermeasure system for preventing illegal acts such as tampering with electronic documents is also required. The reality is that it is limited to less important transactions. For this reason, particularly in important documents and contracts, there are many cases in which an actual seal is imprinted using ink (red) on printed paper. In such a case, the problem is illegal use in which a person other than the principal impersonates himself / herself and improperly uses the seal stamp itself.

  The present invention has been completed on the basis of the above problem recognition, and an object of the present invention is to provide a seal that can form an actual seal on a stamped object such as paper and can prevent unauthorized use. is there.

  In order to solve the above-mentioned problems, a seal stamp with an authentication function according to an aspect of the present invention includes a case that can be gripped by a user to be stamped, and a storage unit that holds fingerprint information of a regular user corresponding to an imprint formed by the stamp. An imprint forming unit that is stored in the case and forms an imprint on the object to be imprinted; a fingerprint information acquiring unit that acquires fingerprint information of a user holding the case through a fingerprint acquisition surface formed on the case; and fingerprint information Authentication means for authenticating whether the user holding the case is an authorized user based on the fingerprint information acquired by the acquisition means and the fingerprint information of the authorized user held in the storage means, and the user holding the case is the authorized user Control for controlling the imprint forming means so that an imprint corresponding to the authorized regular user is formed on the object to be stamped on the condition that the proper authentication indicating that it is It includes a stage, a.

  A regular user registers his / her fingerprint information in advance, for example, fingerprint information of a finger that touches the case when holding the case and the seal of his / her seal. An imprint can be a surname only, a full name, a surname, and a post. When the fingerprint information acquired by the fingerprint information acquisition unit matches the fingerprint information of the authorized user stored in the storage unit, the control unit controls the imprint forming unit to form an imprint corresponding to the authorized user on the stamped object. To do.

  Therefore, only a properly registered user can form an actual imprint on the stamped object.

  It should be noted that any combination of the above-described components and a representation of the present invention by a method or apparatus are also effective as an aspect of the present invention.

  According to the present invention, it is possible to form an actual imprint on a stamped object while preventing unauthorized use of a seal stamp.

  Embodiments of the present invention (hereinafter referred to as embodiments) will be described below with reference to the drawings.

  The seal stamp with an authentication function according to the present embodiment acquires fingerprint information of a finger of a hand that holds a case forming the seal stamp body, and compares it with fingerprint information of a regular user registered in advance. Only when it is confirmed that the user holding the case is a regular user of this seal stamp as a result of the collation, the seal imprinted by the regular user is formed on a stamped object such as paper.

  FIG. 1 is an explanatory diagram for explaining the external shape of a seal stamp 10 with an authentication function according to the present embodiment, FIG. 1 (a) is an external perspective view, and FIG. 1 (b) is a plan view of an imprint forming side end surface. FIG.1 (c) is a top view of the reverse side end surface facing FIG.1 (b). The seal 10 with an authentication function is covered with a cylindrical case 12 that can be formed of, for example, resin. The case 12 includes a grip portion 14 that a user mainly grips with a thumb and an index finger, and a tip portion 16 that slides at the time of stamping and provides a feeling of stamping. On the surface of the grip portion 14, a power switch 20 and a display device 24 are formed in addition to a fingerprint authentication window (fingerprint acquisition surface) 18 which is a characteristic configuration of the stamp 10 with an authentication function. In this embodiment, the regular user is a user registered in the stamp with authentication function 10 through a predetermined procedure, and will be described in detail later. The regular user is a person who owns the seal imprint to be formed. In addition, it is assumed that a proxy user who is permitted to use the seal stamp of the principal user is included.

  A fingerprint sensor of a well-known fingerprint authentication system is built in the fingerprint authentication window 18. For example, an optical fingerprint sensor, a capacitive semiconductor chip fingerprint sensor, or the like can be used. For example, if the user who uses the seal stamp 10 with the authentication function registers the fingerprint information of the index finger, when the user grips the grip portion 14, the user performs authentication of the person by bringing the index finger into contact with the fingerprint authentication window 18. Can do. The power switch 20 can be, for example, a slide switch with a lock mechanism, and prevents the power from being accidentally turned on when the stamp 10 with an authentication function is carried in a bag or pocket. In addition, it is preferable to have a design that suppresses battery consumption and prevents ink described later from being accidentally ejected. As the display device 24, for example, a liquid crystal display device can be used. The display device 24 can display, for example, an operation guide for the stamp 10 with an authentication function, a display of usage history, and other various messages.

  As shown in FIG. 1B, an ink jet unit 26 functioning as an imprint forming means housed in the tip 16 can be seen from the imprint forming side end face. A specific configuration of the inkjet unit 26 will be described later. Around the ink jet unit 26, a guard block 28 that slightly protrudes from the print head is disposed in order to prevent the print head, which is the tip of the ink jet unit 26, from coming into direct contact with a stamped object such as paper. . The guard block 28 can be formed of, for example, a rubber material or a resin, and can function as a slip stopper so that the relative position between the stamp 10 with an authentication function and the paper does not shift during the formation of the seal image. In the case of FIG. 1B, an example in which four guard blocks 28 are arranged around the inkjet unit 26 is shown, but the number to be arranged may be arbitrary as long as the above-described function can be realized. Note that a cap or cover that protects the inkjet unit 26 when the seal image is not formed may be attached to the distal end portion 16. The cap or cover may be configured to automatically open and close, or may be manually attached and detached.

  As shown in FIG. 1C, for example, a USB terminal 30 is arranged on the opposite end face opposite to the imprint forming end face on which the ink jet unit 26 is arranged as a connection terminal with an external device. For example, the user information, fingerprint information, imprint information, and other various setting information of the seal stamp with authentication function 10 are registered and edited using an external device, the data is stored in a USB memory, and the USB terminal 30 is used. It can be registered in the seal stamp 10 with the authentication function. Further, data generated on the side of the seal 10 with an authentication function, such as usage history, battery and ink remaining information, can be moved to the USB memory and managed by an external device. At this time, it is desirable to use a password or the like for the registration work. In addition, LEDs 32 and 34 are arranged on the end face of the gripping unit 14 as a display device that performs simple display. For example, the LED 32 can be lit in green when a fingerprint of a user who intends to use the stamp with authentication function 10 is properly authenticated, and can be lit in red when the fingerprint is not properly authenticated. The LED 34 can be lit in green when the imprint formed by the inkjet unit 26 is formed according to the registered imprint, for example, and can be lit in red when the imprint is not formed according to the registered imprint. . In addition, in the case of FIG.1 (c), although the example which arrange | positions two LED is shown, the arrangement number of LED is arbitrary. A plurality of notification contents can be displayed by combining lighting and blinking of a plurality of LEDs. For example, when the power switch 20 is turned on, the LED 32 or the LED 34 may be lit in a manner different from the above to indicate that the power switch is turned on. A mode selection switch 22 is disposed in the vicinity of the USB terminal 30. The mode selection switch 22 can be a dial-type changeover switch, for example. The mode contents will be described later in detail. For example, the standard mode forms only a standard seal set by a regular user, for example, a surname. There is a mode to add the title and date to the standard seal. In addition, when a surname + job title is set as a standard seal, there is a mode for adding a date or a place of use. As another function, there is a mode for displaying the usage history of the seal stamp with authentication function 10.

  FIG. 2 is a block diagram for explaining the internal configuration of the stamp 10 with an authentication function. Inside the stamp 10 with the authentication function, a control unit 36, a storage unit 38, a fingerprint detection sensor 40, an ink jet unit 26, an ink tank 42, a stamp sensor 44, a battery 46, an additional information receiving unit 48, and the like are housed.

  The control unit 36 is composed of elements such as a ROM and RAM for storing data and programs and a CPU used for arithmetic processing in terms of hardware, and is electrically connected to the storage unit 38, the fingerprint detection sensor 40, and the like. The storage unit 38 can hold fingerprint information of the principal user included in the authorized user, imprint information corresponding to the fingerprint information, additional imprint information to be added to the imprint such as the title of the principal user, and the like. In addition, when a proxy user who has authorized the principal user to use the stamp with authentication function 10 instead of the principal user is registered as a regular user, the fingerprint information of the proxy user, a permission period during which the proxy user can represent the principal user Can be held. In addition, history information, error information, and the like indicating the usage status of the seal stamp 10 with the authentication function can be held.

  In the case of the present embodiment, an example is shown in which one fingerprint detection sensor 40 is arranged for the index finger, but the type of finger authenticated by the fingerprint detection sensor and the number of fingers authenticated by the fingerprint detection sensor should be changed as appropriate. Can do. For example, a fingerprint detection sensor for thumb may be arranged instead of the index finger. Further, two fingerprint detection sensors for the index finger and the thumb may be arranged. In this case, if fingerprint matching is performed with both the index finger and the thumb, security is improved. Furthermore, the security can be further improved by using the middle finger fingerprint collation together. It is also possible to perform fingerprint verification with either the index finger or the thumb. In this case, for example, when one finger is injured or the finger surface is dry or rough, fingerprint collation can be performed with the other finger. In addition, if a predetermined finger cannot be used due to an injury, for example, if the index finger or thumb of the right hand is injured, multiple fingerprints are preliminarily registered so that other fingers can be authenticated. It is desirable. For example, it is also preferable to register the fingerprints of fingers other than the index finger and thumb, and the fingers of the opposite hand.

  The ink tank 42 stores ink protruding from the nozzles of the inkjet unit 26. The type of ink is arbitrary, but considering that the image to be formed is an imprint, it is preferably red or red. The ink may be single color or multicolor. Also, special ink can be used for the ink. For example, by using special ink containing a magnetic material, it can be proved by inspecting the characteristics of the ink that an imprint is formed by the seal stamp 10 with an authentication function. It is also possible to form only a part of the imprint with special ink, and the personal identification of the imprint can be improved.

  The imprint sensor 44 can be constituted by a limit switch fixed to the inner wall of the outer ring portion 50 of the front end portion 16 of the case 12. When the inner ring part 52 enters the outer ring part 50 during the stamping operation of the stamp 10 with the authentication function, the movable arm 44a of the stamp sensor 44 is pressed by a part of the inner ring part 52, Close the contact. For example, the internal contact is set so that the guard block 28 comes into contact with the paper that is the object to be stamped and the inner ring portion 52 is closed at a timing when the inner ring portion 52 slides toward the grip portion 14. That is, when the guard block 28 comes into contact with the paper and the inkjet unit 26 moves to a position optimal for ink ejection, a signal indicating that the contact is closed and preparation for forming an imprint is provided to the control unit 36. In addition, although the example using a limit switch as the imprint sensor 44 was shown in FIG. 2, if the sensor which can detect that the inkjet unit 26 moved to the optimal position for ink discharge, the kind of sensor is arbitrary, for example, A dip switch may be used, or an optical sensor or a magnetic sensor may be used.

  The battery 46 may be, for example, a disposable dry battery or a rechargeable battery. The battery 46 supplies power to the control unit 36 and also supplies power to the display device 24, the inkjet unit 26, the fingerprint detection sensor 40, the LEDs 32 and 34, and the like. Therefore, it is desirable that the control unit 36 automatically turns off the power or shifts to the sleep mode when the stamping operation is not performed for a predetermined time. The storage unit 38 preferably has a data backup battery in addition to the battery 46.

  The additional information receiving unit 48 receives, for example, the position information of the standard radio wave of the radio timepiece and the stamp 10 with the authentication function. By receiving the standard radio wave of the radio timepiece, the time when the stamp 10 with the authentication function is used can be accurately left in the usage history. Further, by receiving location information transmitted from a transmitter installed at a head office, a business office, a branch, etc. for each place where the stamp 10 with the authentication function is used, for example, in the case of a company, the stamp 10 with the authentication function is The used place can be left in the usage history. Further, if the additional information receiving unit 48 is equipped with a GPS function, a use history can be left at an arbitrary place by using a signal from a GPS satellite. In addition to this, the position information can also be obtained from base station information such as PHS and mobile phone.

  In the case of the present embodiment, the additional information receiving unit 48 can function as an additional information acquisition unit that acquires an additional imprint to be added to the imprint of the authorized user that the control unit 36 forms on the stamped object. That is, the additional information receiving unit 48 acquires standard radio waves and position information as additional information and provides them to the control unit 36. The control unit 36 controls the inkjet unit 26 by compositing an additional imprint such as a use time based on the additional information and an imprint imprinted with the result of fingerprint authentication. In addition, the control unit 36 can read additional information indicating a title, correction line, proxy mark, etc. from the storage unit 38 as necessary, and synthesize it with an imprint that is permitted as a result of fingerprint authentication. In this case, the control unit 36 functions as additional information acquisition means.

  FIG. 3 is a schematic diagram illustrating an example of the internal structure of the inkjet unit 26. The ink jet unit 26 includes a line type ink jet print head 54 formed by a plurality of nozzles arranged along the paper surface and a motor 56 for moving the ink jet print head 54 in the directions P1 and P2 in FIG. A pulley 58a is fixed to the rotating shaft 56a of the motor 56, and a drive belt 60 is wound between the pulley 58b arranged oppositely. The head housing 62 of the ink jet print head 54 is fixed to the drive belt 60 by a fixing portion 64, and moves the ink jet print head 54 in the directions of arrows P1 and P2 according to the rotation amount of the motor 56. The head housing 62 engages with the guide rail 66 and can move smoothly in the directions of arrows P1 and P2.

  When the conditions for permitting the formation of the seal impression are met, that is, when the fingerprint information detected by the fingerprint detection sensor 40 matches the registered fingerprint information, the control unit 36 starts controlling the motor 56 and the inkjet print head 54. To do. The motor 56 moves the head housing 62 in the directions of arrows P1 and P2 under the control of the control unit 36. At the same time, the ink jet print head 54 ejects ink from the ink tank 42 from the nozzles in accordance with an imprint formation signal from the control unit 36 output in synchronization with the rotation of the motor 56 to form a predetermined imprint. The imprint formation signal output from the control unit 36 may detect the position of the inkjet print head 54 and output it according to the position.

  FIG. 4 is a schematic diagram illustrating another configuration of the inkjet unit 26. Inside the inkjet unit 26, a line-type inkjet print head 54 similar to the example of FIG. 3 is fixedly disposed at a predetermined position. Further, a part of the tip of the inner ring portion 52 is retracted, and a part of the rotatable roller 68 protrudes. The roller 68 rotates while being in contact with the paper forming the impression. A gear that meshes with the gear of the distance measurement counter 70 is disposed inside the roller 68, and the distance measurement counter 70 accurately measures the rotation amount of the roller 68, that is, the movement amount of the inkjet unit 26. That is, the amount of movement when the stamp 10 with the authentication function is moved with respect to the paper can be detected. The detected movement amount is provided to the control unit 36. In accordance with the amount of movement, the control unit 36 outputs an imprint formation signal to the inkjet print head 54. When the user moves the position of the stamp 10 with the authentication function while bringing the roller 68 into contact with the paper, the ink jet print head 54 ejects ink corresponding to the movement and forms a print line according to the amount of movement. As a result, an imprint can be formed by moving the roller 68 by a predetermined amount. A user who uses the seal stamp with authentication function 10 can form a seal on the paper by holding the seal stamp with authentication function 10 and moving it so as to trace on the paper. If the conditions for permitting the formation of the seal imprint are not met, that is, if the fingerprint information detected by the fingerprint detection sensor 40 does not match the registered fingerprint information, the control unit 36 does not perform inkjet even if the roller 68 rotates. Control is not performed to eject ink to the print head 54. That is, the seal impression is not formed. In addition, as long as it is a sensor which can detect the moving amount | distance of the stamp 10 with an authentication function, structures other than the roller 68 may be sufficient. For example, the movement amount of the seal stamp with authentication function 10 may be detected using an optical sensor. In this case, the roller 68 and the gear as described above are not necessary, and the structure of the tip portion of the inner ring portion 52 is simplified. As a result, the operability and design of the stamp 10 with an authentication function can be improved. Note that the sensor that detects the amount of movement of the stamp with authentication function 10 may use a reading unit 76 (see FIG. 9) that reads a formed impression or detects a paper that forms the impression.

  3 and 4, the nozzles of the inkjet print head 54 are a line type arranged in a line along the paper surface. However, a plurality of nozzles of the inkjet print head are arranged in the vertical and horizontal directions. It may be a matrix type print head. In this case, it is not necessary to move the inkjet print head 54 in order to form an imprint, it is possible to form an imprint at once based on the imprint information supplied from the control unit 36, and the motor 56 and the distance measurement counter 70 It becomes unnecessary, and the structure of the seal stamp 10 with an authentication function can be simplified.

  Alternatively, the ink ejected from the nozzles may be deflected so as to spread in a two-dimensional manner to form an imprint similar to that when the inkjet print head 54 is moved. Specifically, two pairs of deflection electrode plates perpendicular to the line type nozzle are arranged between the nozzle of the inkjet print head 54 and the paper. The ink is ejected by being pressurized from the nozzle. At this time, the ink is atomized while being vibrated and simultaneously charged to a negative charge state. In this state, when passing between the positively charged deflection electrode plates, the ink that has received the deflection force according to the state of the positive charge of the deflection electrode plate bends during the flight. This deflection process can be controlled for each ink particle by changing the state of the positive charge of the deflection electrode plate, and the ink can be deposited at a desired position on the paper. As a result, an imprint having a two-dimensional extent can be formed without moving the inkjet print head 54, as in the configuration of FIGS.

  1A and 1B show an example in which a line type print head is used as the ink jet print head constituting the ink jet unit 26, the imprint formation region seen from the inner ring portion 52 is a quadrangle. ing. However, as described above, when the print head is of a matrix type or a deflection electrode plate is used, it is possible to make the imprint formation region visible from the inner ring portion 52 round. By making the seal imprint formation area round, the image of the conventional round seal is strengthened, and the uncomfortable feeling as a seal can be reduced. In addition, since the imprint formation area is rounded to match the actually formed imprint, there is an advantage that the imprint formation area can be used effectively.

  FIG. 5 is a schematic diagram illustrating still another configuration of the inkjet unit 26. As described above, by using the inkjet print head 54 as a matrix type, an imprint can be formed all at once. The example of FIG. 5 is an example in which an imprint is formed all at once with an easy configuration. In the case of FIG. 5, ink discharge grooves 72 corresponding to the imprint are formed in advance on the surface of the print head. In the case of FIG. 5, the surname “Toda” is carved out. Then, when the conditions for permitting the formation of the imprint are met, that is, when the fingerprint information detected by the fingerprint detection sensor 40 matches the registered fingerprint information, the control unit 36 forms the ink imprint. Ink is ejected simultaneously through the grooves 72. As a result, an imprint of “Toda” is formed.

  In the present embodiment, an example in which an ink jet printing method is employed as an imprint forming unit has been described. However, the present invention is not limited to the ink jet printing method, and for example, a similar imprint can be formed even in thermal transfer printing. In the case of the thermal transfer method, an ink ribbon supply mechanism is required inside the print head unit, or it is necessary to use a dedicated thermal transfer paper as an object to be stamped. As will be described in the present embodiment, by using an ink jet method or a thermal transfer method as an imprint forming means, it is possible to prevent a double pressing action that is possible with a general stamp. Inkjet method, unlike general seals using vermilion, etc., ink does not remain on the head surface after imprinting, so an imprint is formed even if the inkjet printhead is physically pressed against paper without fingerprint authentication. Not. In addition, it is possible to prevent the act of trying to seal with the remaining residue of the vermilion by blowing a breath often performed when there is no vermilion in a general seal. Similarly, even when the structure of the present embodiment is realized by the thermal transfer method, the heat for the thermal transfer disappears quickly, so that the above-described fraud can be prevented.

  Incidentally, as shown in FIGS. 3 and 4, when the inkjet print head 54 is used, the ink ejection control can be arbitrarily changed according to the imprint information, so that various imprints can be formed. In other words, fingerprint information and seal stamp information of a plurality of users can be registered, and a single seal stamp 10 with an authentication function can be used by a plurality of users. Further, when a plurality of users can be registered, it becomes possible to register a proxy user different from the principal user as a regular user. For example, a department manager's seal or the like is required for a payment document or the like, and as a special case, a section manager who is permitted to use the department manager's seal may use the department manager's seal as a substitute for the manager. In the case of the seal stamp 10 with the authentication function of the present embodiment, the use of the seal stamp requires the fingerprint authentication of the manager himself / herself, and only the manager himself / herself can use the seal stamp. Therefore, in the case of the seal stamp 10 with the authentication function of this embodiment, the fingerprint information of the proxy user who is permitted to use the seal stamp of the principal user can be registered instead of the principal user. Further, the seal stamp with authentication function 10 of the present embodiment can set a period during which the fingerprint information of the proxy user is valid in order to improve the security related to the seal.

  FIG. 6 is an explanatory diagram for explaining an example of the relationship between the “imprint” that can be formed and the “regular user”, “fingerprint information”, and “permission period” stored in the storage unit 38. In the case of FIG. 6, “A”, “B”, “C”, and “D” are shown as “imprints” that can be formed. Then, four persons “A1”, “B1”, “C1”, and “D1” who have registered seals as principal users included in the “regular user” are registered. In addition to the principal user A1, two authorized users, “A2” and “A3”, are registered as regular users who can use the “imprint A”. Further, the authorized user who can use the “imprint B” is only the principal user B1, and no proxy user is registered. Similarly, the authorized user who can use the “imprint C” is only the principal user C1, and no proxy user is registered. “D2” is registered as a proxy user in addition to the principal user D1 as an authorized user who can use “imprint D”. In FIG. 6, a subscript of (real person) is assigned to the principal user, and (substitute) is assigned to the proxy user so that the principal user and the proxy user can be easily identified.

  “A1” is registered as the fingerprint information of the principal user A1, and the validity period of the fingerprint information is “all”, that is, it is registered so that it can be used without limitation all day. Also, “a2” is registered as the fingerprint information of proxy user A2, “9 to 14:00” is registered as the valid period of the fingerprint information, “a3” is registered as fingerprint information of proxy user A3, The valid period of the fingerprint information is registered as “14:00 to 17:00”. That is, the principal user A1 can form his / her registered seal A at any time. On the other hand, the proxy user A2 can form an imprint A of the principal user A1 on behalf of the principal user A1 by authenticating his / her fingerprint from 9:00 to 14:00. Further, between 14:00 and 17:00, the proxy user A3 can authenticate his / her fingerprint to form the seal A as the proxy of the principal user A1. Since the principal user B1 and the principal user C1 have no proxy user setting, the imprint B registered by the principal user B1 and the imprint C registered by the principal user C1 are the principal user B1 having the fingerprint information b1, c1, Only the principal user C1 can use it. Further, “d1” is registered as fingerprint information of the principal user D1 who can use the seal imprint D, and “d2” is registered as fingerprint information of the proxy user D2. The proxy user D2 can form an imprint D on behalf of the principal user D1 on the whole day of August 20. Needless to say, the principal user D1 can form an imprint D on the whole day of August 20. When the stamp with authentication function 10 is used exclusively for the principal user A1, the storage unit 38 holds only “the principal user A1 (regular user), fingerprint information a1, permission period all”. . It is also possible for the principal user to permit the stamp only during working hours. In this case, the permission period is “9:00 to 17:00”.

  As described above, by allowing registration of a proxy user as a regular user who can form a seal, one seal stamp 10 with an authentication function can be used by a plurality of users.

  When using a seal, it is important in managing the seal to have a usage history of when the seal was used. Further, when there is a possibility that a plurality of users use the same seal as described above, or when a proxy user uses a seal, the use history of the seal is useful for business management. As a use history, only users can be stored sequentially in a simple manner. In addition, the additional information receiving unit 48 of the present embodiment can acquire the standard radio wave and position information of the radio timepiece and add the information to the usage history.

  FIG. 7 is an explanatory diagram showing an example of the usage history. The usage history includes “user” that can be confirmed by fingerprint authentication, “use date” and “use time” that can be confirmed based on the standard radio wave of the radio clock, “use place” that can be confirmed based on position information, and the control unit 36. It is possible to record “imprint” instructed to the inkjet print head 54. It should be noted that a calendar clock may be built in the stamp 10 with an authentication function, and “use date” and “use time” may be recorded. The position information can be acquired by receiving position information transmitted from a transmitter installed at the Tokyo head office, Kanagawa branch office, or the like. Further, if the additional information receiving unit 48 is equipped with a GPS function, the use place can be left in the use history at an arbitrary place using a signal from a GPS satellite. In this case, the latitude and longitude may be recorded directly, or a place name or the like may be recorded. In addition, as a method for acquiring the position information, the approximate position may be recorded by acquiring PHS or mobile phone base station information. In the case of FIG. 7, for example, it is recorded that the user A1 (the principal user A1) formed the seal A at the Tokyo headquarters at 9:32 on August 20, 2006.

  In this way, by keeping a history of forming seals, it is possible to manage seals efficiently. In addition, since the user is identified by fingerprint authentication, and when and where the seal stamp is used is recorded, the seal stamp with authentication function 10 can be utilized as the location verification device of the used user.

  The usage history information can be stored and managed in the storage unit 38. Further, the use history may be taken out to an external device via the USB terminal 30 and managed separately as appropriate.

  FIGS. 8A to 8G show an example of an imprint that can be formed by switching the imprint mode of the stamp 10 with an authentication function having the above-described configuration. In the case of this embodiment, the simplest imprint shown in FIG. 8 (a), which is only the surname of “Toda”, is used as a reference imprint, and additional job titles and use dates are added as necessary. An example will be described. It should be noted that the size of the seal impression can be set by, for example, initial setting.

  FIG. 8B shows a case where “Technical Department Manager” is set as an additional seal for the reference seal shown in FIG. The additional imprint is combined with the reference imprint by the control unit 36 using the additional information held in the storage unit 38. FIG. 8C shows the case where the use date “2006.8.20” of the seal stamp with authentication function 10 is set as the additional seal stamp. The control unit 36 may determine the use date and time based on the standard radio wave of the radio timepiece received by the additional information receiving unit 48 or may be determined based on the built-in calendar clock.

  FIG. 8D shows a case in which when the proxy user uses the seal of “Technical Manager Tokuda” who is the principal user, a “shiro” mark indicating proxy is set as an additional seal. This “price” mark is also stored in the storage unit 38, and is added when fingerprint authentication of the proxy user is performed and use of the seal stamp of the principal user is permitted.

  FIG. 8E shows a case where the use time “PM3: 46” of the seal 10 with the authentication function is set as an additional seal for the seal shown in FIG. The control unit 36 may determine the use time based on the standard radio wave of the radio clock received by the additional information receiving unit 48 or may be determined based on the built-in calendar clock. The time display may be a 12-hour display as shown in FIG. 8E or a 24-hour display. FIG. 8F shows a case where the use place “at Tokyo head office” of the seal 10 with the authentication function is set as an additional seal for the seal shown in FIG. The control unit 36 can determine the place of use based on the position information received by the additional information receiving unit 48. Note that the above-described composition of each additional imprint can be executed by a selection operation of the mode selection switch 22.

  FIG. 8G shows an imprint of the correction mark mode that can be selected by the mode selection switch 22. In this case, an imprint indicating the last name indicating the user who made the correction is formed small, and a correction line indicating the correction is also formed. In this correction seal mode, an additional stamp indicating the title, use date, and place of use may also be formed. Note that when an imprint is formed by adding the above-described additional seal, information to that effect may be left in the use history described with reference to FIG.

  As described above, in this embodiment, only when the fingerprint authentication is performed and the seal image formation is permitted, the inkjet unit 26 is controlled to form the seal image. At this time, since the ink jet print head 54 forms an imprint, various types of imprint can be formed according to the application. In addition, since the date of use of the stamp 10 with the authentication function can be automatically added, setting of the date of use is not required as in the case of the conventional dated stamp, and accurate use date insertion can be performed quickly. Moreover, although the example which performs mode switching by the mode selection switch 22 was shown in the above-mentioned example, this mode switching can also be performed by another means. For example, an imprint as shown in FIGS. 8A to 8G may be registered for each finger used for authentication, and the imprint may be selected by fingerprint authentication. For example, in the case of a right hand index finger, a section mark shown in FIG. 8B is formed. In the case of the middle finger of the right hand, an individual mark having only the last name shown in FIG. Similarly, individual impressions can be assigned to the ring finger and thumb. In addition, the imprint formed by performing fingerprint authentication continuously within a predetermined time may be switched. For example, the imprint shown in FIG. 8D may be formed by performing authentication twice with the index finger within 2 seconds. In addition, the imprint of FIG. 8G may be formed by performing authentication with the middle finger after the index finger within 2 seconds. The finger used for fingerprint authentication can be set with either the right hand or the left hand. In this way, if the mode switching is simply performed with the finger used for authentication, it is possible to omit the trouble of operating the mode selection switch 22 by changing the seal 10 with the authentication function when continuously stamping. Usability is improved.

  FIG. 9 is a conceptual configuration diagram illustrating another configuration of the inkjet unit 26 used in the seal stamp with authentication function 10 of the present embodiment. The basic configuration of the ink jet unit 26 shown in FIG. 9 is the same as that of the ink jet unit 26 shown in FIG. 3, and the same reference numerals are given to the same members, and the description thereof is omitted. The ink jet unit 26 shown in FIG. 9 has a reading unit 76 that reads an imprint formed on the stamp target line 4 (for example, paper). The reading unit 76 can be formed by a line type light emitting element 76 a and a line type light receiving element 76 b arranged in parallel with the nozzle arrangement of the inkjet print head 54. Further, the reading unit 76 is arranged on the rear side with respect to the direction of the imprint formation direction (arrow P1), and preferably in close contact with the ink jet print head 54 so that the imprints formed by the ink jet print head 54 can be sequentially read.

  When an imprint is formed by the ink jet print head 54, a blur 78 or fading 80 is generated as shown in FIG. 10A due to the material and state of the stamped object 74, the state of the ink to be ejected, and the compatibility with the stamped object 74. There is a case. Such blur 78 and blur 80 are not preferable as an imprint. Therefore, in this embodiment, the imprint formed by the ink jet print head 54 is sequentially read and the imprint information is provided to the control unit 36. The determination unit 82 of the control unit 36 compares the imprint information read from the storage unit 38 with the imprint information acquired by the reading unit 76 and determines the degree of coincidence between them. When the determination by the determination unit 82 does not reach a predetermined degree of coincidence, the error processing unit 84 included in the control unit 36 executes an error process indicating that the imprint formation has failed. In the error process, for example, the LED 34 can be lit red, a message indicating that the imprint formation has failed is displayed on the display device 24, or an alarm sound can be output using a speaker. In addition, a message for prompting confirmation of the stamped object 74 being used or confirmation of nozzle clogging of the inkjet print head 54 may be output. In addition, the seal stamp 10 with the authentication function or the stamped object 74 may move during the formation of the seal image, and the seal image may be doubled or discontinuous. Such an imprint formation error can also be detected by the imprint confirmation process by the reading unit 76 described above.

  The reading unit 76 that reads the formed imprint functions as an inspection unit that inspects whether or not the imprint can be formed on the stamped object 74. For example, the control unit 36 determines whether or not the line type light receiving element 76b can receive the light projected by the line type light emitting element 76a as to whether or not the stamped object 74 exists at a predetermined position facing the inkjet print head 54. Can be judged. In the case of the present embodiment, the seal sensor 44 detects the slide of the tip portion 16 to determine whether or not the stamp operation has been performed, thereby preventing the ink from being accidentally ejected. However, fingerprint authentication may be performed by touching the fingerprint authentication window 18 in a pocket or bag, and the tip 16 may slide further. Therefore, in addition to the condition that the fingerprint authentication is permitted and the seal sensor 44 is turned on, the control unit 36 further satisfies the seal permission condition when the line-type light receiving element 76b of the reading unit 76 receives reflected light of a predetermined intensity. It can be judged that it is complete. In this way, by setting a plurality of imprint permission conditions without causing a burden on the user's operation, it is possible to reliably prevent inadvertent ink ejection.

  By the way, the reading unit 76 can read a diagram printed on the stamped object 74. When stamping with a seal stamp, the stamping position may be indicated on the stamped object 74. For example, as shown in FIG. 11A, an imprint frame 86 may be shown as an area where an approval mark should be pressed. In addition, as shown in FIG. 11B, a signature line 88 and a mark mark 90 may be shown.

  In the present embodiment, the reading unit 76 detects an imprint frame 86, a signature line 88, a mark mark 90, and the like prior to stamping. The control unit 36 can further confirm the stamp position as the above-described stamp permission condition, in addition to the successful fingerprint authentication, the ON of the stamp sensor 44, and the confirmation of the stamp object 74 by the reading unit 76. That is, even if other conditions are met, if the tip 16 of the stamp with authentication function 10 is not within the imprint frame 86, the formation of the imprint is prohibited. In addition, when the front end portion 16 of the stamp with authentication function 10 is in a position where the signature line 88 and the mark mark 90 do not exist, the formation of the seal image is prohibited. That is, ink ejection is prohibited. Whether or not the distal end portion 16 is in the imprint frame 86 can be notified to the user by, for example, display by the LED 32, the LED 34, the display device 24, or the like, or output of an alarm sound. Moreover, guidance which guides to move the front-end | tip part 16 to an optimal position can also be performed using these alerting | reporting. Thus, by checking the stamping position by the reading unit 76 and determining whether or not the stamping is possible, it is possible to reliably prevent the wrong position from being stamped. Since the reading unit 76 is disposed at a fixed position with respect to the inkjet print head 54, the control unit 36 determines how much the imprint to be formed is inclined with respect to the detected imprint frame 86 and signature line 88. Can be detected. It is preferable that the normal stamping is performed in a posture inclined to the left. Therefore, the control unit 36 may add whether or not the impression posture is in an optimum state to the stamping permission condition. By adding this condition, for example, it is possible to reliably prevent the seal impression from being formed upside down or at an inappropriate angle.

  The reading unit 76 can also be applied to the configuration shown in FIG. 4. If the reading unit 76 is arranged on the rear side with respect to the imprint formation direction of the inkjet print head 54, the same effect as in FIG. 9 can be obtained. Further, when applied to the configuration of FIG. 4, the reading unit 76 is fixed to a position on the side of the print head as a type capable of reading over a wide range. However, in this case, since the imprint is scanned obliquely, it is necessary to correct the imprint information. As another method, a line-type reading unit 76 similar to that shown in FIG. 9 is fixed at a position on the side of the print head, and after the imprint is formed, the stamp 10 with an authentication function is moved on the imprint, and the formed imprint is scanned. You may do it. In this case, since the same result as in the example of FIG. 9 is obtained, no correction is necessary.

  Further, the scan of the formed imprint can be executed at another opportunity after the imprint is formed. In this case, it is possible to verify whether or not the seal imprint already formed on the stamped object 74 (paper or the like) is the one formed by the stamp 10 with authentication function that is currently held. Can also be used as an imprint confirmation device.

  FIG. 12 is a flowchart for explaining the seal image forming process of the seal stamp with authentication function 10 of the present embodiment configured as described above.

  A user who intends to use the seal stamp 10 with the authentication function first turns on the power switch 20 to bring the index finger into contact with the fingerprint authentication window 18. The control unit 36 performs fingerprint authentication based on the fingerprint information acquired through the fingerprint detection sensor 40 (S100). If the fingerprint information of the user whose index finger is in contact with the fingerprint authentication window 18 is not stored in the storage unit 38, that is, if the fingerprint authentication is denied (N in S100), the imprint formation is not performed even if any operation is performed. This flow is finished.

  If the fingerprint authentication is affirmed in S100 (Y in S100), the control unit 36 selects the imprint information corresponding to the authenticated fingerprint information from the storage unit 38 (S102). Subsequently, when the user has set addition of an imprint by the mode selection switch 22 (Y in S104), the control unit 36 displays corresponding additional information, for example, information indicating the date and time of use, information indicating the location of use, Get information that indicates The control unit 36 combines the acquired imprint information and the basic imprint of the authorized user (S106). In S104, when the user has not set an additional seal, the process of S106 is skipped.

  Subsequently, when the stamping object 74 (paper) is detected by the reading unit 76 (Y in S108), the control unit 36 performs a guide for the stamping position (S110). That is, guidance is executed so that the front end portion 16 is centered at an appropriate position with respect to the imprint frame 86 and the like. This stamp position guide is executed until the tip 16 is positioned at an appropriate position on the stamp object 74 by the detection of the reading unit 76 (N in S112). When it is confirmed that the distal end portion 16 is positioned at an appropriate position on the stamped object 74 (Y in S112) and a stamping operation is performed by the user (Y in S114), the control unit 36 selects or combines Ink ejection control based on the imprint information is executed (S116). At the same time, the imprints sequentially formed by the reading unit 76 are read (S118). The ink ejection process and the seal impression reading process in S116 are continued until the seal based on the selected or synthesized seal information is completed (N in S120). When the seal is completed (Y in S120), the control unit 36 cancels the authentication result acquired prior to the current stamping operation (S122). In other words, authentication is required every time an imprint is formed, and when the imprint is formed again, it is necessary to perform fingerprint authentication again to be recognized as an authorized user, and security can be improved.

  Thereafter, the control unit 36 obtains the degree of coincidence between the imprint information read in S118 and the imprint information selected in S102 or the imprint information synthesized in S106, and when it is determined that the two are more than a predetermined coincidence ( Y in S124), an OK process is performed to indicate that the seal impression has been formed normally (S126). In the OK process, for example, the LED 34 is lit in green, a message is displayed on the display device 24 informing the success of the imprint formation, or a voice informing the success of the imprint formation, for example, a short sound such as “beep” is output. Exit. If it is determined in step S124 that the two are not more than the predetermined degree of coincidence (N in S124), an NG process indicating that the imprint formation has not been performed normally is executed (S128). For example, the NG process turns on the LED 34 in red, displays a message notifying the formation of the imprint on the display device 24, or outputs a sound indicating the imprint formation failure, for example, “Peep”, and ends this flow. To do. Note that if the stamped object 74 (paper) cannot be detected even after a predetermined time (for example, 2 seconds) has elapsed in the process of S108 (N in S108), the process after S110 is skipped and a series of imprint formation is performed. The process ends. Further, if the stamping operation by the user is not executed even if a predetermined time (for example, 2 seconds) elapses in the process of S114 (N of S114), the process after S116 is skipped, and the series of stamp formation processes is ended.

  In the flowchart of FIG. 12, in order to cancel the authentication result after the fingerprint authentication is once affirmed, an imprint has to be formed. As another example, when fingerprint authentication is affirmed in the process of S100, the authentication result may be canceled after a predetermined time regardless of the presence or absence of the imprint formation. For example, when a legitimate user accidentally touches the fingerprint authentication window 18 of the seal stamp with authentication function 10 to execute fingerprint authentication and affirmation of authentication, it becomes possible to form an imprint. That is, a third party can form an imprint without fingerprint authentication. Therefore, if fingerprint authentication is affirmed in the processing of S100, unauthorized use by other than authorized users can be prevented by canceling the authentication result after elapse of a predetermined time, for example, 2 seconds after authentication, regardless of the presence or absence of imprinting. And security can be improved.

  In another example, when fingerprint authentication is affirmed in the process of S100, the authentication result may be canceled after a predetermined time regardless of the number of impression formations. For example, in the case of continuously imprinting a document with a plurality of sheets, once fingerprint authentication is affirmed, it is desired to continuously form a seal without performing fingerprint authentication. In this case, if the authentication result is canceled after the lapse of a predetermined time regardless of the number of impression formations, fingerprint authentication is omitted and a smooth stamping operation can be realized. In this case, the time until the authentication result is canceled, that is, the valid period of the authentication result can be arbitrarily set by the mode selection switch 22 or the like for a period sufficient for one impression formation, for example, 1 second to unlimited. You may do it. However, even within the set valid period, for example, when fingerprint authentication is performed again regardless of whether the power switch 20 is turned off or whether the user is a regular user, the previous authentication result is It is desirable not to execute the imprint formation until it is canceled and fingerprint authentication is newly affirmed.

  By the way, the seal stamp of the seal stamp with authentication function 10 of the present embodiment is strictly managed by fingerprint authentication. However, if the case 12 of the seal stamp 10 with the authentication function is opened and the storage unit 38 is taken out or the internal wiring is changed, the imprint information and fingerprint information may be leaked or illegally used. Therefore, the seal stamp 10 with the authentication function of the present embodiment can include means for preventing leakage of imprint information and unauthorized use when the case 12 is not opened using a predetermined procedure or a predetermined tool. FIG. 13 is a conceptual configuration diagram (a part) of a seal stamp 10 with an authentication function including a fraudulent signal generation unit 92 and a stamp imprint formation inhibition unit 94 as means for preventing leakage or improper use of imprint information. The illegal signal generator 92 generates an illegal signal when the case 12 is illegally accessed. For example, when the case 12 is damaged, the illegal signal generation unit 92 is caused to have a poor conduction and generate an illegal signal when the case 12 is damaged. Can do. In this case, it is desirable that the current used for detecting the damage is very small so that the battery 46 is not wasted. Further, it is possible to generate a fraud signal when the engagement portion of the case 12 is removed without inserting a tool having a predetermined shape into the fraud signal generation portion 92. Since the removal of the storage unit 38 and the change of the internal wiring all involve opening or breakage of the case 12, it is exposed to the risk of leakage of imprint information or unauthorized use by detecting unauthorized access to the case 12. Can be detected.

  Further, the storage unit 38 is configured to require a power source such as a DRAM, the case 12 cannot be disassembled unless the disassembling screw for the case 12 is disposed under the battery 46 or the battery case, and the battery 46 or the battery is removed. You may do it. In this case, in order to disassemble the case 12, it is necessary to remove the battery 46 and the battery, and the stored contents of the storage unit 38 are erased at that time, so that leakage of the imprint information can be surely prevented. In this case, it is desirable that a capacitor or the like is disposed so as to withstand momentary interruption so as to prevent erroneous operation and prevent the imprint information from being erased when the battery 46 or the battery is replaced.

  When the imprint formation inhibiting unit 94 acquires a fraud signal from the fraud signal generation unit 92, reading of the storage contents of the storage unit 38 can be prohibited. In this case, the prohibition of reading the stored contents includes a case where the calling of the stored contents is locked and a case where the stored contents themselves are erased. When locking the recall of the stored contents, it is necessary to execute an unlocking operation set by the user or the manufacturer, for example. Further, as shown in FIG. 5, when the storage unit 38 is not required to include specific imprint information in the type in which the ink discharge groove 72 is formed, the ink discharge surface of the inkjet unit 26 is physically deformed or destroyed. By doing so, the formation of an imprint may be inhibited. For example, when the imprint formation inhibiting unit 94 acquires a fraud signal from the fraud signal generation unit 92, a screw is screwed into the ink discharge groove 72 to break the shape of the ink discharge groove 72. By executing such an imprint formation inhibition process, leakage of the imprint protected by fingerprint authentication can be surely prevented, and the reliability of the stamp 10 with an authentication function can be improved.

  As described above, the same software effect can be obtained without including means for preventing leakage or improper use of seal imprint information. If the hardware blocking means is not included as described above, the storage unit 38 and the ink jet print head 54 may be taken out from the seal stamp with authentication function 10 and connected to another casing to form a seal image. . Therefore, a start signal and an output signal for fingerprint authentication that are sent before the operation of the inkjet print head 54 are set (unique). That is, the storage unit 38, the fingerprint detection sensor 40, and the ink jet print head 54 are made unique for each serial number assigned to each stamp 10 with an authentication function. For example, the start signal and the output signal are set at the time of manufacturing setting, and only when the combination of the start signal and the output signal is complete, the ink jet print head 54 functions to execute the impression creation operation. As a result, even if some parts such as the inkjet print head 54, the fingerprint detection sensor 40, and the storage unit 38 obtained illegally in the seal 10 with the authentication function having the same structure are replaced, the original fingerprint detection sensor 40 and the inkjet print head If it is not 54 pairs, it can be set not to operate. As a result, leakage of imprint information and unauthorized use can be prevented.

  In addition, it is desirable for security that the seal imprint information and fingerprint information registered in the stamp with authentication function 10 are collected by using, for example, a dedicated reading device and written in the ROM by the manufacturer of the seal stamp with authentication function. However, dedicated registration software may be distributed so that the user can add seal stamp information and fingerprint information. In particular, if the user can register the proxy user's fingerprint information and the proxy permission period, the usability is improved. Similarly, usability can be improved by allowing the user to additionally register the imprint information and fingerprint information of the principal user. In this case, the imprint information can be registered by reading the imprint imprinted using vermilion or the like by the reading unit 76. Similarly, fingerprint information can be registered by reading the user's fingerprint with the fingerprint detection sensor 40. However, in the case of imprint information, there is a possibility that a copy imprint or the like may be registered. Therefore, it is desirable that only those with specific authority can be registered, or that only the manufacturer can register.

  Also, the seal imprint information and fingerprint information can be downloaded or uploaded via the USB terminal 30. In this case, it is desirable that the original data of the seal imprint information and the fingerprint information can be created only by the manufacturer, and it is preferable in terms of security to set a password or the like when downloading or uploading.

  In addition, as an additional function of the seal stamp 10 with the authentication function described above, for example, a function for displaying the remaining amount of ink in the ink tank 42 or the remaining amount of charge in the battery 46 and a battery / ink supplement replacement alarm function may be added. In addition, a function for displaying the remaining number of times that the seal impression can be formed may be added based on the measurement of the remaining amount of ink.

  Moreover, although the case where the seal stamp 10 with the authentication function has a single structure has been described in the present embodiment, it may be combined with other articles. For example, it may be combined with a writing instrument or a mobile phone. Especially in the case of a mobile phone, it has excellent portability and has many advantages in terms of configuration because it includes many parts that can be shared, such as a fingerprint authentication system, calendar clock function, position information acquisition function, battery, and display device. Can contribute.

  Further, in the present embodiment, as shown in FIG. 1, the seal with an authentication function 10 has been described as an example of a type in which the seal is pinched with an index finger and a thumb, as in the case of a conventional small seal, but fingerprint authentication was performed. Above, what is necessary is just the structure which forms an imprint on the occasion of having been authenticated appropriately. For example, the gripping portion 14 may be formed thick and may be gripped with five fingers. In this case, the fingerprint authentication of the thumb can be performed on the top of the gripping unit 14, and the fingerprint authentication of the other four fingers can be performed on the side of the gripping unit 14. That is, fingerprint authentication can be performed with five fingers, and fingerprint authentication accuracy can be improved. In this case, authentication with only the thumb, authentication with only the index finger, or a combination thereof may be used.

  Further, in this embodiment, an example in which an imprint is formed only when fingerprint authentication of a regular user is properly authenticated has been described. However, when fingerprints of a plurality of users can be registered, as a result of the plurality of fingerprint authentications, all are properly authenticated. It is also possible to form an imprint indicating a solidarity seal when For example, it is possible to form one imprint only when fingerprint authentication of a plurality of persons is completed within a predetermined time. In this way, for example, the confirmation mark of solidarity cannot be formed unless the general manager and the section manager are at the same time. In such a case, a solidarity mark such as a surname or title may be added as an additional seal to the seal formed.

  The configuration shown in FIG. 2 of the present embodiment incorporates various optional functions. At the minimum, the function for executing fingerprint authentication and the imprint when an authorized user is authenticated as a result of the fingerprint authentication. Any function that can be formed is sufficient. That is, other sensors and display devices can be omitted or added as appropriate, and the seal stamp with authentication function 10 having a desired function can be configured.

  The present invention has been described based on the embodiments. It is to be understood by those skilled in the art that the embodiments are exemplifications, and that various modifications can be made to combinations of the respective components and processing processes, and such modifications are within the scope of the present invention.

  In addition to this, it should be understood by those skilled in the art that the functions to be fulfilled by the constituent elements described in the claims are realized by a single function block shown in the present embodiment or a combination thereof. .

It is explanatory drawing explaining the external appearance shape of the seal stamp with an authentication function which concerns on this embodiment. It is a block diagram explaining the internal structure of the seal stamp with an authentication function which concerns on this embodiment. It is the schematic which shows an example of the internal structure of the inkjet unit of the seal stamp with an authentication function which concerns on this embodiment. It is the schematic explaining the other structure of the inkjet unit of the seal stamp with an authentication function which concerns on this embodiment. It is the schematic explaining the other structure of the inkjet unit of the seal stamp with an authentication function which concerns on this embodiment. It is explanatory drawing explaining an example of the information hold | maintained at the memory | storage part of the seal | sticker with an authentication function which concerns on this embodiment. It is explanatory drawing which shows an example of the use log | history of the seal stamp with an authentication function which concerns on this embodiment. It is explanatory drawing which shows the example of the seal stamp which can be formed with the seal stamp with an authentication function which concerns on this embodiment. It is a conceptual block diagram explaining the other structure of the inkjet unit used for the seal stamp with an authentication function which concerns on this embodiment. It is explanatory drawing explaining the formation error of the imprint which forms an inkjet print head. It is explanatory drawing explaining the example of the diagram which shows the stamp position formed in the paper which forms a seal impression. It is a flowchart explaining the seal impression formation process of the seal stamp with an authentication function which concerns on this embodiment. It is a conceptual block diagram explaining the means to prevent the leakage of the imprint information of the seal stamp with an authentication function concerning this embodiment.

Explanation of symbols

  10 stamp with authentication function, 12 case, 14 gripping part, 16 tip, 18 fingerprint authentication window, 26 inkjet unit, 36 control part, 38 storage part, 40 fingerprint detection sensor, 54 inkjet print head, 74 stamped object.

Claims (11)

A case that can be gripped by the user to seal,
Storage means for holding fingerprint information of a legitimate user corresponding to the seal formed by the seal,
Imprint forming means that is housed in the case and forms an imprint on a stamped object;
Fingerprint information acquisition means for acquiring fingerprint information of a user holding the case through a fingerprint acquisition surface formed on the case;
Authentication means for determining whether or not a user holding the case is a regular user based on fingerprint information acquired by the fingerprint information acquisition means and fingerprint information of a regular user held in the storage means;
The imprint forming unit is configured to form an imprint corresponding to the authenticated regular user on the stamped object on condition that proper authentication indicating that the user holding the case is a regular user has been performed. Control means for controlling;
A seal with an authentication function, characterized in that The storage means further holds seal impression information corresponding to the fingerprint information,
The said control means controls the said imprint formation means so that an imprint may be formed on the said seal | sticker target object based on the imprint information of the regular user who was appropriately authenticated by the said authentication means. Seal with authentication function.   3. The seal stamp with an authentication function according to claim 2, wherein the storage unit holds a plurality of combinations of fingerprint information of the authorized user and seal information corresponding to the fingerprint information. The storage means holds the fingerprint information of the principal user corresponding to the imprint as the authorized user, and the fingerprint information of the proxy user who is permitted to use the imprint of the principal user instead of the principal user,
When the authentication unit authenticates the fingerprint information of the proxy user, the control unit sets the imprint forming unit so as to form an imprint of the principal user who is authorized to use the proxy user on the stamped object. The seal stamp with an authentication function according to any one of claims 1 to 3, wherein the seal stamp is controlled.   The storage unit holds authentication permission period information that allows the proxy user to be authenticated, and the authentication unit performs authentication processing using the fingerprint information of the proxy user only during the period when the authentication is permitted by the authentication permission period information. The seal stamp with an authentication function according to claim 4, which is made possible. Further, a reading means for reading a seal image formed on the stamped object,
A determination unit that compares the imprint read by the reading unit with the imprint read from the storage unit and determines the degree of coincidence between the two,
If the determination by the determination means does not reach a predetermined degree of coincidence, error processing means for executing error processing;
The seal stamp with an authentication function according to claim 1, wherein the seal stamp has an authentication function.   The sealant with an authentication function according to any one of claims 1 to 6, wherein the storage unit further holds a history that the control unit has formed an imprint based on authentication. Furthermore, an unauthorized signal generating means for generating an unauthorized signal when the case is illegally accessed,
When acquiring the fraud signal, prohibit reading of the storage contents of the storage means, or imprint formation inhibiting means for deforming the imprint formation means to inhibit imprint formation;
The seal stamp with an authentication function according to any one of claims 1 to 7, wherein the seal stamp has an authentication function.   The start signal used when the imprint formation unit executes imprint formation and the authentication determination output signal output by the authentication unit are uniquely set, and the imprint formation unit has a combination of the start signal and the output signal. The seal with an authentication function according to any one of claims 1 to 8, wherein the seal is set so as to function only when they are aligned. Furthermore, it includes additional information acquisition means for acquiring additional information for forming an additional seal added to the seal of the regular user,
The said control means controls the said imprint formation means to synthesize | combine and form the said imprint and the additional imprint on the said sealing target object, The any one of Claim 1 to 9 characterized by the above-mentioned. Seal with authentication function as described. Furthermore, it includes an inspection means for inspecting whether or not a stamp can be formed on the stamped object,
The control means, when it is determined that the inspection means can form an imprint, determines that the imprint permission conditions are met, and controls the imprint formation means to form the imprint on the stamped object. The seal stamp with an authentication function according to any one of claims 1 to 10.

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