JP2008146537A - Biological information reading unit and personal authentication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a biological information reading unit which fully prevents dust, dirt, or the like from accumulating on a biological information reading surface. <P>SOLUTION: A biological information reading part reads the finger vein pattern of a user as biological information and informs a controller of the finger vein pattern read. A reading table 30 is rotatably attached to a rotating shaft 30a. When the biological information of the user is authenticated, a biological information reading part 3 rotates and drives the reading table 30, and thus it becomes a reading status with the biological information reading surface faced outside the body, and when authentication of the biological information of the user is completed, it rotates and drives the reading table 30 again and returns the state to a standby state, with the biological information reading surface facing the inner side of the body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a biometric information reading unit that reads biometric information such as a fingerprint pattern, a finger vein pattern, and a palm vein pattern from a user, and a personal authentication device to which the biometric information reading unit is applied.

  Conventionally, there has been a biometric information authentication device that authenticates a user using biometric information such as a fingerprint pattern, a finger vein pattern, and a palm vein pattern. Since biometric information is information relating to a part of a user's individual body, the security against impersonation is high. Recently, this biometric authentication device is applied to an automated teller machine (ATM) installed in a financial institution such as a bank, an entrance / exit management device for restricting entrance / exit to a management area, and the like.

A personal authentication device that uses biometric information captures an image of a user's finger, palm, or the like facing a reading surface of a biometric information reading sensor (for example, an image sensor), and the user's biometric information (fingerprint pattern, Finger vein pattern, palm vein pattern, etc.). Further, in a general personal authentication device, the biometric information reading surface is provided upward in consideration of user operability when reading biometric information. For this reason, dust, dust, and the like are likely to adhere to the biometric information reading surface side. If dust or dirt adheres and accumulates on the reading surface side of the biological information, the biological information cannot be read properly. As a result, the authentication accuracy is reduced. Therefore, a personal authentication device is proposed that employs a configuration in which a cover is provided above the reading surface, and when the user presses the cover down with a finger, the cover opens and the user's finger faces the biometric information reading surface. (See Patent Document 1). In this configuration, when the biological information of the user is not read, the reading surface side is covered with the cover, so that it is possible to prevent dust and dirt from adhering to the reading surface side.
Japanese Patent Laid-Open No. 2005-253989

  However, in the configuration described in Patent Document 1, when the user's biometric information is not read, dust or dirt accumulates on the upper surface of the cover. When the user presses down the cover with his / her finger when reading the biometric information, dust or dust accumulated on the upper surface of the cover may fall to the biometric information reading surface side. Therefore, in the configuration of Patent Document 1, it is not sufficiently suppressed that dust or dirt or the like adheres to the biometric information reading surface side. As a result, a decrease in authentication accuracy due to dust or dirt adhering to the reading surface side is not sufficiently suppressed.

  An object of the present invention is to provide a biological information reading unit that can sufficiently suppress accumulation of dust or the like on the biological information reading surface side.

  In addition, the present invention provides a personal authentication device that can sufficiently suppress a decrease in authentication accuracy as a result of sufficiently suppressing the accumulation of dust or the like on the reading surface side of biometric information. Objective.

  The biological information reading unit of the present invention has the following configuration in order to solve the above problems.

(1) A biometric information reading unit that reads biometric information of a user,
A biological information reading table provided with a biological information reading sensor for reading the biological information of the user;
The biological information reading stand is driven, and the state thereof is between a first state in which the reading surface of the biological information reading sensor faces the outside of the main body and a second state in which the reading surface faces the inside of the main body. And a drive unit that changes in
The drive unit changes the biometric information reading table to the first state at the time of user authentication, and changes the biometric information reading table to the second state when authentication for the user is completed. Let

  In this configuration, the driving unit drives the biological information reading table, and the first state in which the reading surface of the biological information reading sensor provided on the biological information reading table faces the outside of the main body and the first state facing the inner side of the main body. Change between two states. The drive unit places the biometric information reading table in the first state when the user is authenticated, and sets the biometric information reading table in the second state when the user authentication is completed. As described above, when there is no need to read the biometric information of the user, the reading surface of the biometric information reading sensor is directed to the inside of the main body, so that it is possible to suppress the adhesion of dust or the like on the reading surface side. . Further, when reading biometric information of the user, even if dust or dirt adheres to the reading surface side, the biometric information reader is moved from the first state when the biometric authentication for the user is completed. Since the driving is performed in the second state, dust or dirt attached to the reading surface side due to vibrations or the like at this time can be dropped. Therefore, it is possible to sufficiently prevent dust and dirt from adhering and accumulating on the reading surface side of the biological information reading sensor. Thereby, a user's biometric information can be read appropriately.

(2) The biological information reading table is rotatably mounted,
The drive unit rotates the biological information reading table and changes the state between the first state and the second state.

  In this configuration, since a simple configuration in which the biological information reading table is rotatably attached is adopted, an increase in the cost of the main body can be suppressed.

  (3) When the biological information reading stand is in the second state, the biological information reading sensor is attached so that the reading surface of the biological information reading sensor faces downward.

  In this configuration, when the biological information reading table is in the second state, dust or dirt attached to the reading surface side of the biological information reading sensor can be dropped and removed. Therefore, it is possible to further sufficiently prevent dust and dirt from adhering and accumulating on the reading surface side of the biological information reading sensor.

  (4) A cleaning member is provided that contacts the surface of the biological information reading table when the driving unit is driving the biological information reading table from the first state to the second state.

  With this configuration, it is possible to efficiently remove dust or dirt adhering to the reading surface side of the biological information.

  (5) When the said biometric information reading part is a said 2nd state, the ventilation part which ventilates with respect to the surface of this biometric information reading stand is provided.

  In this configuration, similarly to the above (4), it is possible to efficiently remove dust and dirt adhering to the biological information reading surface side.

  The personal authentication apparatus of the present invention has the following configuration.

(1) a medium processing unit that receives a user's recording medium and reads medium information recorded on the recording medium;
A biological information reading table provided with a biological information reading sensor for reading the biological information of the user;
An authentication unit that authenticates the user using the medium information read by the medium processing unit and the user's biological information read by the biological information reading sensor;
The biological information reading stand is driven, and the state thereof is between a first state in which the reading surface of the biological information reading sensor faces the outside of the main body and a second state in which the reading surface faces the inside of the main body. And a drive unit that changes in
The drive unit changes the biometric information reading table to the first state at the time of user authentication, and changes the biometric information reading table to the second state when authentication for the user is completed. Let

  In this configuration, as described above, dust, dust, and the like adhere to and accumulate on the reading surface side of the biological information reading sensor, so that the biological information of the user can be read appropriately. Therefore, it is possible to sufficiently suppress a decrease in user authentication accuracy.

  (2) When biological information is included in the medium information read from the recording medium received by the medium processing unit, the biological information reading table is changed to the first state with respect to the driving unit. On the contrary, when the biological information is not included, there is provided a drive instruction unit that does not instruct the drive unit to change the biological information reading table to the first state.

  In this configuration, when biometric information is not recorded on the recording medium received by the medium processing unit, that is, when biometric authentication is not performed for the user, the biometric information reading table is set to the drive unit in the first state. Therefore, the driver does not wastefully drive the biological information reading table.

  (3) When the said drive part drives the said biometric information reading stand, the display part which displays that is provided.

  In this configuration, it is possible to notify the user that the biological information reading table is driven by the driving unit.

  According to the biometric information reading unit of the present invention, it is possible to prevent dust and dirt from adhering to the reading surface side of the biometric information reading sensor, and to efficiently remove dust and dust adhering to the reading surface side. it can. Therefore, the user's biological information can be read appropriately.

  Further, according to the personal authentication device of the present invention, it is possible to sufficiently suppress the deterioration of the user authentication accuracy due to the influence of dust or dirt adhering to the biometric information reading surface side.

  Hereinafter, a biometric information reading unit and a personal authentication device according to embodiments of the present invention will be described.

  FIG. 1 is a diagram showing a configuration of a main part of an automatic teller machine (hereinafter referred to as ATM) to which a personal authentication device according to an embodiment of the present invention is applied. The ATM 1 includes a control unit 2, a biological information reading unit 3, a card processing unit 4, a passbook processing unit 5, a cash processing unit 6, an operation unit 7, a display unit 8, and a communication unit 9. ing. ATM1 of this embodiment is installed in the store of financial institutions, such as a bank. ATM1 performs transactions such as deposit processing and withdrawal processing desired by the user. The control unit 2 controls the operation of each part of the ATM1 main body. The control unit 2 is provided with an authentication unit referred to in the present invention. The biometric information reading unit 3 reads the biometric information of the user. This biological information reading unit 3 is an embodiment of a biological information reading unit according to the present invention. The biometric information of the user read by the biometric information reading unit 3 may be any of a fingerprint pattern, a finger vein pattern, and a palm vein pattern. Here, a case where a finger vein pattern is read as biometric information will be described as an example. The card processing unit 4 accepts a cash card 10 (hereinafter simply referred to as a card 10) owned by a user, and receives card information (corresponding to medium information referred to in the present invention) recorded on the card 10. read. The card 10 may be any type such as a magnetic card, a contact type IC card, and a non-contact type IC card. The card processing unit 4 is configured to be able to read card information recorded on the card 10 and record card information on the card according to the type of the card 10 to be handled. The card processing unit 4 can also be configured to process a plurality of types of cards 10. Some cards 10 record user biometric information (finger vein pattern registration data) as card information, while others do not.

  The passbook processing unit 5 has a reading function for receiving a user's passbook, reading the passbook information recorded in the passbook, and a printing function for printing transaction contents on the passbook. Further, it has a statement slip issuing function for issuing a statement slip on which transaction details are printed when a passbook is not used during a transaction. The cash processing unit 6 processes coins and banknotes that are deposited and withdrawn. The operation unit 7 includes an input device (keyboard or touch panel) on which a user performs an input operation, and accepts the user's input operation on this input device. The display unit 8 displays an operation guidance screen for the user and assists the user's input operation. The communication unit 9 controls data communication with a host device (not shown). The embodiment of the personal authentication device according to the present invention includes the control unit 2, the biometric information reading unit 3, the card processing unit 4, and the display unit 8 described above.

  FIG. 2 is a diagram illustrating a configuration of the biological information reading unit. The biometric information reading unit 3 reads the user's finger vein pattern as biometric information and notifies the control unit 2 of the read finger vein pattern. The biometric information reading unit 3 has a reading table 30 on which a finger that a user reads as biometric information is placed. The reading table 30 is attached so as to be rotatable about a rotation shaft 30a. On one surface of the reading table 30, a guide member 30b is provided for guiding a position where a finger is placed on the user. A reading sensor 31 that reads a finger vein pattern of a user's finger is provided between the reading table 30 and the guide member 30b. The reading sensor 31 is an image sensor. The guide member 30b is made of a light transmissive member so that the finger vein pattern can be read by the reading sensor 31 from the user's finger placed on the guide member 30b. The side on which the guide member 30 b is disposed is the reading surface side of the reading sensor 31.

  Although not shown in FIG. 2, the reading table 30 has a light source (not shown) that emits illumination light when imaging the finger vein pattern of the user.

  The motor 32 is driven and controlled by the drive control unit 33. The drive control unit 33 controls the motor 32 in accordance with instructions from the control unit 2. The rotation shaft 32 a of the motor 32 is connected to the rotation shaft 30 a of the reading table 30. The reading table 30 is rotationally driven by a motor 32, and the reading state shown in FIG. 2A (first state referred to in the present invention) and the standby state illustrated in FIG. 2B (second state referred to in the present invention). State). In the reading state and the standby state, the panel surface of ATM1 and the surface of the reading table 30 located on the panel side of ATM1 are configured to substantially coincide. Further, in the standby state, the reading surface side on which the guide member 30b is provided is in a state of being housed inside the main body, so that dust, dust, etc. are sufficiently attached to the reading surface side in the standby state. Can be suppressed. Although FIG. 2 shows a case where the rotation shaft 32a of the motor 32 and the rotation shaft 30a of the reading table 30 are connected by a belt, they may be connected via a gear or the rotation shaft of the reading table 30. You may comprise 30a with the rotating shaft 32a of the motor 32. FIG.

  The reading table 30 is disposed on the operation panel of the ATM 1. As shown in FIG. 2 (A), the reading table 30 has a reading surface facing upward when the reading surface is in the reading state facing the outside of the main body. As shown in FIG. When in a standby state with the surface facing the inside of the main body, the reading surface faces downward. Therefore, dust, dust, and the like attached to the guide member 30b can be dropped when in the standby state. In the reading state, the reading surface of the reading sensor 31 faces upward, so that the operability for the user is not deteriorated.

  In addition, the reading table 30 has a sensor (not shown) that detects which state is shown in FIG. 2A or FIG. For example, a sensor that detects whether the state shown in FIG. 2A or 2B is in a state other than these, or a sensor that detects whether the guide member 30b is located inside the main body. And the state of the reading table 30 is detected based on the detection results of these sensors. The sensor may be a contact type sensor or a non-contact type sensor (for example, an optical sensor).

  Note that the finger vein pattern imaging method in the biological information reading unit 3 may be a reflected light method for imaging light reflected by the finger, or a transmitted light method for imaging light transmitted through the finger. Good. The light source is arranged according to this imaging method.

  Next, operation | movement of ATM1 of this embodiment is demonstrated. 3 and 4 are flowcharts showing the operation of the ATM of this embodiment. The ATM 1 holds the reading table 30 in the standby state shown in FIG. 2B during standby when no operation is performed by the user. When ATM 1 detects the presence of a user with a proximity sensor (not shown) provided on the main body (s1), ATM 1 displays a transaction menu screen shown in FIG. 5 on display unit 8 (s2). If ATM1 performs the selection input which selects the transaction classification which a user desires in the operation part 7 (s3), the insertion screen of the card | curd 10 shown in FIG. 6 will be displayed on the display part 8 (s4). When the card 10 is inserted into the card processing unit 4 (s5), the ATM 1 reads the card information recorded on the card 10 (s6). The card information read from the card 10 in which the card processing unit 4 is inserted is sent to the control unit 2.

  At this time, the ATM 1 may accept a passbook in the passbook processing unit 5. Further, depending on the type of transaction selected by the user, the card 10 may not be accepted. However, in this case, the description is omitted.

  ATM1 determines whether the card | curd information read by s6 contains biometric information (s7). The biometric information recorded on the card 10 is biometric information of the owner of the card 10. If the ATM 1 determines that the biometric information is included in the card information read from the card 10 this time, it determines that biometric authentication for the user is necessary. In other words, it is determined that the user is a user who desires biometric authentication at the time of transaction. The ATM 1 drives the reading table 30 and displays the driving screen shown in FIG. 7 on the display unit 8 in order to make the user recognize that the reading table 30 is changed from the standby state to the reading state (s8). Further, the ATM 1 instructs the biological information reading unit 3 to drive the reading table 30 from the standby state to the reading state (s9). This drive instruction is given to the drive control unit 33. The drive control unit 33 drives the motor 32 to change the reading table 30 from the standby state to the reading state. When the reading table 30 is in a reading state (s10), the drive control unit 33 stops driving the motor 32. When the reading table 30 enters the reading state, the ATM 1 displays the biometric information reading screen shown in FIG. 8 (s11), and guides the user to place the finger on which the biometric information is registered on the reading table 30. . Since the guide member 30b is arranged on the biometric information reading surface side as described above, the user can easily place the finger at the reading position of the reading sensor 31.

  The biometric information reading unit 3 notifies the control unit 2 of the read finger vein pattern of the user. When the biometric information reading unit 3 reads the finger vein pattern of the ATM 1 (S12), the ATM 1 reads the biometric information included in the card information read by the card processing unit 4 in s6, and the biometric information reading unit 3 The finger vein pattern of the user read in s12 is collated, and it is authenticated whether the user and the owner of the card 10 are the same person (s13). If the ATM 1 cannot authenticate that the user is the owner of the card 10 in s13, the predetermined number of times (for example, three times) that the authentication failure by the biometric information is predetermined for this user in the current transaction. Is determined (s14). If the ATM 1 determines that the predetermined number of times has not been reached in s14, the ATM 1 once removes the finger from the reading surface of the reading table 30 (see FIG. 9A), and again displays a screen for instructing to place the finger on the reading surface (FIG. 9). (See (B)) are sequentially displayed on the display unit 8 (s15), and the process returns to s12.

  When the ATM 1 authenticates that the user is the owner of the card 10 in s13, the ATM 1 displays a screen for notifying the user of the completion of authentication (s16). Thereafter, when the user lifts his / her finger from the reading surface of the reading table 30, the ATM 1 displays the drive screen shown in FIG. 10 in order to make the user recognize that the reading table 30 is driven and returned to the standby state. 8 is displayed (s17). Further, the ATM 1 instructs the biological information reading unit 3 to drive the reading table 30 from the reading state to the standby state (s18). This drive instruction is given to the drive control unit 33. The drive control unit 33 drives the motor 32 to change the reading table 30 from the reading state to the standby state. The drive control unit 33 stops driving the motor 32 when the reading table 30 enters a standby state.

  When the reading table 30 enters the standby state (s19), the ATM 1 displays the password input screen shown in FIG. 11 on the display unit 8 (s20). When the user inputs a personal identification number in the operation unit 7 (s21), the ATM 1 determines whether the personal identification number input this time is appropriate (s22). If the ATM 1 determines that the password is not appropriate in s22, the ATM 1 determines whether the number of times that the incorrect password is input in the current transaction has reached a predetermined number of times (for example, 3 times) (s23). . If the ATM 1 determines that the number of times that the wrong password is input in s23 has not reached the predetermined number, the ATM 1 displays a screen for requesting re-input of the password on the display unit 8 (s24). Return. Also, if the ATM 1 determines that the number of times the incorrect password is input in s23 has reached a predetermined number, the card 10 received by the card processing unit 4, the passbook received by the passbook processing unit 5, etc. Is terminated (s25), and the process is terminated. On the other hand, if the ATM 1 determines that the password entered in s22 is appropriate, the ATM 1 accepts the deposit amount, the withdrawal amount, etc., and executes a transaction process for performing the type of transaction selected in s3 (s26). This process ends. The cash processing unit 6 processes coins and banknotes deposited and withdrawn in this transaction process. In addition, the ATM 1 performs communication with the host device in the communication unit 9 as necessary. ATM1 returns the card 10 received in the card processing unit 4, the passbook received in the passbook processing unit 5 and the like to the user when the transaction processing related to s26 is completed.

  If the ATM 1 determines that no biometric information is recorded in the card 10 accepted this time in s7, the ATM1 performs the above-described processing after s20. If the ATM 1 determines that the authentication failure due to the biometric information in the current transaction has reached a predetermined number of times in s14, a screen (see FIG. 12) indicating the biometric authentication failure is displayed on the display unit 8. (S27), the user is instructed to remove his / her finger from the reading surface of the reading table 30. When the user removes his / her finger from the reading surface of the reading table 30, the ATM 1 displays the above-described driving screen shown in FIG. 8 is displayed (s28). The processing related to s28 is the same as s17 described above. Further, the ATM 1 instructs the biological information reading unit 3 to drive the reading table 30 from the reading state to the standby state (s29). The processing related to s29 is also the same as s18 described above. This drive instruction is given to the drive control unit 33. The drive control unit 33 drives the motor 32 to change the reading table 30 from the reading state to the standby state. The drive control unit 33 stops driving the motor 32 when the reading table 30 enters a standby state. When the reading table 30 enters a standby state (s30), the ATM 1 performs the transaction cancellation process at s25 described above, and ends this process.

  As described above, in the ATM 1 of this embodiment, when the biometric information is authenticated to the user, the reading table 30 is driven to rotate so that the biometric information reading surface faces the outside of the main body. When the authentication of the biometric information for the person is completed, the reading table 30 is rotated again to return to the standby state with the biometric information reading surface facing the inside of the main body. Therefore, when biometric information is not authenticated for the user, it is possible to sufficiently suppress the accumulation of dust or the like on the biometric information reading surface side. In addition, when reading the biometric information of the user, dust, dust, or the like attached to the biometric information reading surface side can be removed by vibration when the reading table 30 is driven from the reading state to the standby state. Furthermore, since the reading surface faces downward in the standby state, dust, dust, and the like attached to the reading surface side of the biometric information can be efficiently removed when the biometric information of the user is read. Therefore, the user's biometric information can be read appropriately, and the decrease in authentication accuracy can be suppressed.

  In addition, since the reading table 30 is simply mounted so as to be rotatable, the cost of the apparatus main body can be sufficiently suppressed.

  Further, when the reading table 30 is driven to rotate, the fact is displayed on the display unit 8, so that the user can be alerted and safety can be ensured.

  Furthermore, the biological information reading unit 3 may be configured as shown in FIG. 13 or FIG. 13 and 14, the illustration of the motor 32 and the like is omitted. FIG. 13 shows a configuration in which a brush 41 that abuts on the reading table 30 when the reading table 30 is driven to rotate is disposed. Therefore, when the reading table 31 is rotationally driven, dust and dirt adhering to the reading surface side can be swept away by the brush 41 when the reading table 30 is rotationally driven. In addition, dust, dust, and the like adhering to the biological information reading surface side can be more efficiently removed.

  FIG. 14 shows a configuration in which an air blowing unit 42 for blowing air to the reading surface when the reading table 30 is in a standby state. 14a shown in FIG. 14 is a blower hole through which the air blown from the blower 42 is passed. In this case, when the reading table 30 is in a standby state, the blower 42 may be driven at an appropriate timing. As a result, dust and dirt attached to the reading surface side can be blown off, and dust and dirt attached to the reading surface side of biological information can be further efficiently removed.

  Further, if both the brush 41 and the blower 42 are provided, dust or dirt attached to the biometric information reading surface side can be more efficiently removed.

  In the above-described embodiment, the reading table 30 is rotated by the motor 32. However, a solenoid or the like may be used as a driving unit that changes the reading table 30 between a standby state and a reading state. In the above embodiment, the present invention is applied to the ATM 1 as an example. However, the present invention can also be applied to other types of devices such as an entrance / exit management device.

It is a figure which shows the structure of the principal part of the automatic teller machine to which the personal authentication apparatus which is embodiment of this invention is applied. It is a figure which shows the structure of a biometric information reading part. It is a flowchart which shows operation | movement of ATM of this embodiment. It is a flowchart which shows operation | movement of ATM of this embodiment. It is a figure which shows the example of a display screen in a display part. It is a figure which shows the example of a display screen in a display part. It is a figure which shows the example of a display screen in a display part. It is a figure which shows the example of a display screen in a display part. It is a figure which shows the example of a display screen in a display part. It is a figure which shows the example of a display screen in a display part. It is a figure which shows the example of a display screen in a display part. It is a figure which shows the example of a display screen in a display part. It is a figure which shows the structure of the biometric information reading part concerning another embodiment. It is a figure which shows the structure of the biometric information reading part concerning another embodiment.

Explanation of symbols

1-ATM1
2-Control unit 3-Biometric information reading unit 4-Card processing unit 5-Passbook processing unit 6-Cash processing unit 7-Operation unit 8-Display unit 9-Communication unit 30-Reading table 30 a-Rotating shaft 30 b-Guide member 31 -Reading sensor 32-Motor 33-Drive control unit 41-Brush 42-Blower unit 42a-Blower hole

Claims (8)

A biometric information reading unit for reading biometric information of a user,
A biological information reading table provided with a biological information reading sensor for reading the biological information of the user;
The biological information reading stand is driven, and the state thereof is between a first state in which the reading surface of the biological information reading sensor faces the outside of the main body and a second state in which the reading surface faces the inside of the main body. And a drive unit that changes in
The drive unit changes the biometric information reading table to the first state at the time of user authentication, and changes the biometric information reading table to the second state when authentication for the user is completed. A biological information reading unit. The biological information reading table is rotatably mounted,
The biological information reading unit according to claim 1, wherein the driving unit rotates the biological information reading table and changes the state between the first state and the second state.   The biological information reading unit according to claim 1 or 2, wherein the biological information reading table is attached so that a reading surface of the biological information reading sensor faces downward when in the second state.   The said drive part was equipped with the cleaning member contact | abutted on the surface of this biological information reading stand, when driving the said biological information reading stand from the said 1st state to the said 2nd state. The biological information reading unit according to any one of the above.   The biological information reading unit according to any one of claims 1 to 4, further comprising a blower for blowing air to the surface of the biological information reading table when the biological information reading unit is in the second state. A medium processing unit that receives a user's recording medium and reads medium information recorded on the recording medium;
A biological information reading table provided with a biological information reading sensor for reading the biological information of the user;
An authentication unit that authenticates the user using the medium information read by the medium processing unit and the user's biological information read by the biological information reading sensor;
The biological information reading stand is driven, and the state thereof is between a first state in which the reading surface of the biological information reading sensor faces the outside of the main body and a second state in which the reading surface faces the inside of the main body. And a drive unit that changes in
The drive unit changes the biometric information reading table to the first state at the time of user authentication, and changes the biometric information reading table to the second state when authentication for the user is completed. Let the personal authentication device.   When the medium information read from the recording medium received by the medium processing unit includes biometric information, the drive unit is instructed to change the biometric information reading table to the first state. On the other hand, the apparatus includes a drive instruction unit that does not instruct the drive unit to change the biometric information reading table to the first state when biometric information is not included. The personal authentication device described.   The personal authentication device according to claim 6 or 7, further comprising a display unit that displays and outputs a message to the effect that the driving unit drives the biometric information reading table.

Images