JP2005242593A - Personal identification device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a personal identification device high in convenience having portability. <P>SOLUTION: A plurality of biological sensors are installed in order to acquire biological information. An identifying part identifies a user based on the biological information acquired from the plurality of biological sensors. In this case, the plurality of biological sensors are arranged so that input faces to accept the input of a user can be arranged in parallel or accumulated, and configured to almost simultaneously acquire biological information based on one time contact operation by the user. The biological information respectively acquired by the sensors which acquire the same type of biological information among the plurality of biological sensors is logically calculated so that the biological information may be compensated. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a personal authentication device, and more particularly to a portable personal authentication device.

  Identification methods can be broadly classified into three categories. One is authentication by possession such as a key or an ID card. However, security is threatened by the loss or theft of property authentication. The other is authentication based on knowledge such as passwords. However, knowledge authentication also has security problems due to forgetting and snooping. Another authentication method that has been attracting attention in recent years is biometric authentication using biometric information such as fingerprints, palm prints, faces, irises, and voice prints. In biometric authentication, security concerns due to “losing” associated with authentication based on the above-mentioned possession and knowledge are considerably suppressed. In addition, since the user does not need to have a thing or knowledge, it is easy to provide a highly convenient authentication system.

An authentication apparatus based on biometric authentication is expected to replace authentication by possession such as a key of a house or a car because of these advantages. In recent years, electronic commerce is becoming more active. Many of the authentication methods are based on knowledge authentication. In this field, the advent of a biometric authentication device with high convenience and safety is awaited.
Shigeru Ando, “Biometrics Key Technologies in the Safe and Rich Network Age”, 5th Automatic Recognition General Exhibition Seminar Session5, Japan, Japan Society for Automatic Recognition Systems, September 10, 2003

  In a personal authentication device based on biometric authentication, it is necessary to provide an interface for receiving an input for authentication. However, space limitations are a problem particularly in small devices such as mobile phones and PDAs (Personal Digital Assistance). In addition, there are many problems at the present stage for shortening the authentication time and improving the authentication accuracy.

  The present invention has been made in view of such problems, and an object thereof is to provide a highly convenient authentication device having portability.

  In order to solve the above problems, a personal authentication device according to an aspect of the present invention includes a plurality of biometric sensors provided to acquire biometric information and an authentication unit that authenticates a user based on the biometric information. The plurality of biometric sensors are arranged so that input surfaces for receiving user inputs are arranged in parallel or stacked, and each biometric sensor acquires biometric information based on a single contact operation by the user.

  ADVANTAGE OF THE INVENTION According to this invention, the highly convenient personal authentication apparatus which has portability can be provided.

(Example 1)
In the personal authentication device according to the present embodiment, a plurality of biometric sensors are provided to acquire biometric information. When the user performs an authentication operation once, the plurality of biometric sensors acquire biometric information. This apparatus includes a “composite sensor that includes a plurality of sensors and acquires authentication information with a single input”.

  FIG. 1 is a diagram illustrating a mode in which a plurality of types of biological information are acquired by juxtaposing biological sensors on a plane. In the figure, an optical sensor, a pressure sensor, an electrostatic sensor, and a skin sensor are disposed. An optical sensor is a sensor that acquires biological information about a user's fingerprint or palm print by detecting reflection or transmission of light. The pressure-sensitive sensor is a sensor that acquires biological information about a user's fingerprint or palm print by detecting pressure of a piezoelectric element or the like. An electrostatic sensor is a sensor that acquires biological information about a user's fingerprint or palm print by detecting capacitance. The skin sensor is a sensor that acquires biological information by measuring the thickness of the skin.

  As shown in the figure, when the user places a finger on the center of the four biological sensors, the four biological sensors respectively acquire biological information. This personal authentication device executes personal authentication processing based on biometric information obtained from four biometric sensors.

  Conventionally, in order to acquire a plurality of pieces of biometric information, a user has been required to perform a plurality of operations for a plurality of authentications. However, by arranging the biometric sensors side by side as shown in the figure, a plurality of pieces of biometric information are acquired simultaneously by a single operation by the user. Therefore, it is not only convenient for the user, but also has an effect of shortening the authentication time. Also, in the case of a single sensor, the authentication accuracy deteriorates depending on the situation at the time of authentication, and the user may have to perform an input operation for authentication many times. For example, in the case of an electrostatic sensor, biological information cannot be obtained with high accuracy if the detection surface of the sensor is wet. However, according to the personal authentication device of the present embodiment, even if any of the plurality of biometric sensors cannot acquire biometric information satisfactorily, other sensors play a complementary role, resulting in improved authentication accuracy. As a result, the convenience of the personal authentication device can be improved.

  FIG. 2 is a diagram illustrating an aspect in which a plurality of types of biological information are acquired by stacking and arranging biological sensors. In the figure, the detection surfaces of the electrostatic sensor, the pressure sensor, the optical sensor, and the skin sensor are stacked in order from the surface on which the user's finger contacts. As shown in the figure, when the user places a finger on the detection surface of the electrostatic sensor, each of the four biological sensors acquires biological information. Also in this case, this personal authentication device executes an authentication process based on biometric information obtained from the four biometric sensors.

  FIG. 3 is a diagram showing a mode in which a plurality of types of biological information are acquired by arranging biological sensors in parallel and stacked. With such an arrangement, the personal authentication device can acquire more biometric information. Moreover, this personal authentication apparatus performs an authentication process based on biometric information obtained from the plurality of biometric sensors.

  FIG. 4 is a diagram illustrating a mode in which a plurality of types of biometric information are acquired by stacking authentication LSIs in addition to biometric sensors. The personal authentication device executes authentication processing by comparing biometric information registered in advance with biometric information acquired from each biosensor. Authentication LSIs having a function of executing this authentication process may be bonded to the biosensors that are stacked. Thereby, the wiring connecting the biometric sensor and the authentication LSI can be shortened, and the volume of the personal authentication device can be reduced.

  FIG. 5 is a diagram illustrating an aspect of acquiring a plurality of types of biological information by sweeping and driving the biological sensor. In the figure, a plurality of biological sensors are arranged in a line. When the user places a finger in the form of a biosensor, the personal authentication device detects that the finger has been placed by an optical sensor. Then, the positions of the biosensors arranged in a row are swept and driven in a belt conveyor manner. Thereby, several biometric information is acquired by several biometric sensor only by a user putting a finger | toe. In addition, a plurality of biological sensors may acquire biological information by sliding a finger placed on the biological sensors arranged in a line in a predetermined direction.

(Example 2)
The personal authentication device in the present embodiment has a function of correcting biometric information by performing a logical operation on biometric information acquired from a plurality of biometric sensors. This apparatus is composed of “a plurality of authentication information collection means and a plurality of authentication algorithms, and authentication information collection means and authentication for authenticating each authentication method collection means and the result of the authentication algorithm and the information of the intermediate results supplementarily. The authentication process is executed by “algorithm”.

  FIG. 6 is a diagram illustrating an aspect in which biological information is synthesized by performing a logical operation on biological information acquired by a plurality of biological sensors. In the figure, biological information relating to three fingerprints is acquired by three biological sensors. The three biosensors may be biosensors based on the same detection principle, or may be biosensors based on different detection principles. Fingerprint images acquired from the three biometric sensors can successfully extract fingerprint features at the upper right part, upper left part and lower part, respectively. For example, the personal authentication device in this embodiment performs image processing by performing an AND operation or an OR operation on these three fingerprint images to generate an entire fingerprint image. When combining these three images, alignment for combining the images is performed based on the positions of the feature points obtained by overlapping with different biosensors among the feature points appearing in the respective fingerprint images.

  In the case of a personal authentication device composed of a single biometric sensor, it is difficult to properly execute authentication processing unless biometric information can be acquired satisfactorily. Further, even in the case of a personal authentication device composed of a plurality of biometric sensors, each biometric sensor individually acquires biometric information, and authentication processing is executed individually corresponding to the biometric information. However, even in this case, there is a possibility that none of the plurality of biometric sensors can acquire biometric information satisfactorily. In that case, since the authentication process corresponding to each biometric sensor is individually executed, there is a case where the normal authentication process cannot be executed as a result. According to the personal authentication device of the present embodiment, even if the biometric information obtained from a plurality of biometric sensors is insufficient, appropriate authentication processing is executed by synthesizing the acquired biometric information by logical operation. Necessary and sufficient biometric information can be acquired.

  FIG. 7 is a diagram illustrating another aspect of synthesizing biometric information by performing a logical operation on biometric information acquired by a plurality of biometric sensors. In FIG. 6, it is assumed that each of the plurality of biometric sensors is a sensor that acquires an image of the entire fingerprint. In FIG. 7, each of the plurality of biometric sensors is associated with a specific part of the fingerprint, and is set as a sensor for acquiring a fingerprint image and skin information at the specific part.

  A biosensor 1 (not shown) detects the center of the fingerprint and acquires a fingerprint image at the center. This personal authentication device determines a part of a fingerprint to be acquired by another biosensor as viewed from the center of the fingerprint. The biosensor 2 (not shown) acquires skin information at a specific location according to this determination. The personal authentication device extracts the features of biometric information obtained from a plurality of biometric sensors, and executes authentication processing.

(Example 3)
The personal authentication device according to the present embodiment acquires information for confirming whether the detection target is a living body (hereinafter referred to as “biometric determination information”). The authentication method executed by this device is: “Authentication of the person himself / herself, whether the authentication target is a living body by looking at the blood flow flowing through the body at the same time as the authentication, or by looking at the thickness of the eye lens. Method of determining ".

  FIG. 8 is a diagram illustrating a mode in which the biological determination information is acquired by the blood flow sensor. The blood flow sensor acquires biological determination information as, for example, the amount of change in hemoglobin in the blood vessel due to light irradiation. The skin sensor acquires biological information regarding the skin thickness of the finger that is the detection target in order to identify the living body. The blood flow sensor is a sensor that detects blood flow circulating inside the finger. The biological determination information acquired from the blood flow sensor is notified to the biological determination unit. The biometric determination unit determines whether the target is a living body before performing authentication. If it is not a living body, it is treated as an authentication failure. If it is a living body, the fact is notified to the comparison / collation unit. The comparison and collation unit executes an authentication process based on the biological information acquired from the skin sensor.

  In the case of a personal authentication device based on biometric authentication, it may be possible to impersonate the person with artificially created skin, retina, or iris that is not a living body. The personal authentication device according to the present embodiment has a function of determining whether or not an authentication target is a living body. Therefore, since the impersonation by artificially created biological information is prevented, the safety of the apparatus is improved. In addition to this, various determination materials such as the thickness of the eye lens and the body temperature can be considered as the biological determination information.

Example 4
The personal authentication device according to the present embodiment includes an environment sensor that acquires external environment information when acquiring biometric information, and an environment correction unit that corrects the biometric information using the external environment information. The authentication method by this apparatus is “a method of correcting biometric information using information obtained from a sensor different from the sensor that collects biometric information, which is the original purpose”. Including.

  FIG. 9 is a diagram illustrating an aspect in which fingerprint information is corrected according to the pressure applied from the finger when collecting fingerprint information. The fingerprint sensor shown in the figure may be a known sensor for acquiring fingerprint information such as an optical sensor or a pressure sensor. When the fingerprint sensor acquires fingerprint information, the pressure sensor detects the pressure applied from the finger. The pressure sensor measures pressure with a piezoelectric element or the like. This personal authentication device corrects fingerprint information acquired by a fingerprint sensor in accordance with a pressure value applied from a finger. Alternatively, the amount of water contained in the finger may be measured when fingerprint information is collected, and the fingerprint information may be adjusted according to the amount of water. In addition, the biological information may be corrected based on external environment information such as the amount of light, humidity, and temperature when acquiring the biological information.

  In biometric authentication, since biometric information is affected by the external environment, the same biometric information is not always obtained from the same biometric. The personal authentication device according to the present embodiment includes an environmental sensor for detecting the influence of the external environment in addition to the biological sensor that acquires the original biological information. Then, by correcting the biological information so as to suppress the influence of the external environment on the biological information, the biological information can be stably acquired regardless of changes in the external environment.

(Example 5)
The personal authentication apparatus according to the present embodiment is configured by separating a sensor unit that acquires biometric information and an authentication input unit that executes authentication processing. This device is “a personal authentication device that authenticates the person using optical means and guides the light output from the light emitting source to the authentication information input unit through an optical fiber. Alternatively, the authentication information is input. It is an authentication device that guides the light input from the unit to the sensor with an optical fiber, or “the authentication device using the above two”.

  FIG. 10 is a diagram illustrating a configuration of an optical sensor that acquires biometric information and an authentication information input unit that inputs information for authentication. As shown in the figure, the biological information acquired by the biological sensor is input to the authentication information input unit by the optical fiber. A sensor having a size independent of the size of the authentication information input unit can be used by transmitting and receiving signals by connecting the authentication information input unit and the sensor with an optical fiber. Since a general-purpose biosensor can be used, it is effective in reducing the production cost of the personal authentication device.

(Example 6)
The personal authentication device according to the present embodiment includes a division processing unit that divides a signal reflected from a living body into a plurality of frequency bands, and the authentication processing unit performs an authentication process by processing the signal for each divided frequency band. Execute. This apparatus is an “authentication apparatus that authenticates an individual using an optical means and that separates light input to an authentication information input unit with a spectroscope”.

  FIG. 11 is a diagram illustrating an aspect in which reflected light from a living body is spectrally received. The irradiation unit irradiates the living body with white light. The irradiating unit may irradiate light in which a plurality of wavelengths are mixed instead of white light. The white light reflected by the living body goes to the spectroscope as reflected light. The spectroscope classifies the reflected light into respective ranges of near infrared, near ultraviolet and visible light. Sensors corresponding to the respective frequency ranges are provided. The personal authentication device performs an authentication process using the biometric information acquired from these sensors. In a conventional personal authentication device, it is normal to irradiate light that has been divided into a plurality of frequency ranges in advance. And the optical sensor which detects light according to each of these frequency ranges is provided. The personal authentication device according to the present embodiment can acquire biological information by irradiating white light regardless of the frequency range detected by the sensor using the spectroscope.

(Example 7)
The personal authentication device according to the present embodiment includes “a wave generation device that outputs a wave reflected by a living body to be authenticated, a reflected wave detection device that detects a reflected wave, and an authentication device that performs authentication based on the state of the reflected wave. It is an apparatus characterized by using waves that are transmitted and reflected even when there is an object.

  FIG. 12 is a diagram illustrating a mode in which the personal authentication device performs authentication via a glove. The generator outputs a detection signal in a frequency band that can pass through an obstacle such as a glove. The detection signal may be electromagnetic waves, light, ultrasonic waves, or the like. The detection signal passes through the glove and is reflected by the user's finger or palm. The detector detects this reflected wave. The sensor acquires biological information such as fingerprints and palm prints by the reflected waves.

  FIG. 13 is a diagram illustrating a mode in which the personal authentication device performs authentication via clothes. In the same manner, the generator outputs a detection signal in a frequency band that can be transmitted through the clothes. The detection signal passes through the clothes and is reflected by the user's skin. The detector detects this reflected wave. The sensor acquires biological information such as fingerprints and palm prints by the reflected waves.

  In a conventional personal authentication device, in any type of contact detection or non-contact detection, authentication is usually impossible if there is any obstacle between the device and the living body. The personal authentication apparatus according to the present embodiment can perform authentication using fingerprints or skin while wearing gloves or clothes. Thereby, since the user can perform authentication while wearing gloves and clothes, convenience is enhanced.

(Example 8)
The personal authentication device according to the present embodiment includes a biosensor in which a plurality of protruding pressure detection elements having a function of detecting pressure are arranged. This apparatus includes an “authentication sensor including a plurality of protrusion-shaped sensors”.

  FIG. 14 is a diagram illustrating a mode in which biological information is acquired by a protrusion-shaped pressure detection element. The user places a finger on the sensor as shown in FIG. Each pressure detection element of the sensor detects the pressure at the respective position. The personal authentication device according to the present embodiment acquires biometric information such as fingerprints and palm prints by combining these pressures to detect the unevenness of the fingers.

  FIG. 15 is a diagram illustrating another aspect in which biological information is acquired by a protrusion-shaped pressure detection element. As shown in the figure, each pressure detection element of the biological sensor penetrates clothes and detects pressure from the user's skin. Alternatively, the detection unit of the biological sensor may be formed in a protruding shape and configured to be able to acquire biological information from the living body through an obstacle such as clothes.

  In a conventional personal authentication device, in any type of contact detection or non-contact detection, authentication is usually impossible if there is any obstacle between the device and the living body. In the personal authentication device according to the present embodiment, since the biosensor has a protruding contact surface, authentication using fingerprints or skin is possible even while wearing gloves or clothes. Thereby, since the user can perform authentication while wearing gloves and clothes, convenience is enhanced. In addition, although the example which used the pressure sensor was shown in the present Example, you may use a skin sensor instead of a pressure sensor.

Example 9
The personal authentication device in this embodiment is composed of a “wave generator that outputs a wave reflected by authentication information, a reflected wave detector that detects a reflected wave, and an authentication device that authenticates based on the state of the reflected wave. The device is characterized in that it uses waves that are transmitted and reflected even when the cover is on.

  FIG. 16 is a diagram showing a mode in which the personal authentication device is installed in the mobile phone. This personal authentication device is embedded in the side surface of the mobile phone. Therefore, the personal authentication device cannot be visually recognized from the outside. This authentication device outputs a detection signal in a frequency band that can pass through the cover of the mobile phone. The detection signal may be electromagnetic waves, light, ultrasonic waves, or the like. The detection signal passes through the cover and is reflected by the user's finger or palm. The detector of the personal authentication device detects this reflected wave. The sensor of the personal authentication device acquires biometric information such as a fingerprint and a palm print by this reflected wave. The personal authentication device may be provided at a plurality of locations of the mobile phone.

  Since the detection signal output from the personal authentication device passes through the cover of the mobile phone, the design of the mobile phone is not affected by the personal authentication device. In addition, since the personal authentication device is embedded under the cover, it is difficult for dirt to adhere to the personal authentication device, and it is possible to prevent external impact on the personal authentication device. If a personal authentication device is embedded at a position where biometric information such as fingerprints and palm prints can be acquired naturally when the user has a mobile phone, authentication processing can be executed without making the user aware of it.

  FIG. 17 is a diagram illustrating a mode in which the personal authentication device is installed at the entrance of the elevator. The personal authentication device is embedded in a wall portion next to the elevator door. Therefore, the mechanism of the personal authentication device cannot be visually recognized from the outside. This authentication device outputs a detection signal in a frequency band that can be transmitted through the wall surface. The detection signal may be electromagnetic waves, light, ultrasonic waves, or the like. The detection signal passes through the wall surface and is reflected by the user's finger or palm. The detector of the personal authentication device detects this reflected wave. The sensor of the personal authentication device acquires biometric information such as a fingerprint and a palm print by this reflected wave. The personal authentication device may be provided at a plurality of locations on the wall surface.

  FIG. 18 is a diagram showing another aspect in which the personal authentication device is installed at the entrance of the elevator. The personal authentication device is embedded in the door portion of the elevator. Therefore, the mechanism of the personal authentication device cannot be visually recognized from the outside. This authentication device outputs a detection signal in a frequency band that can pass through the door. The detection signal may be electromagnetic waves, light, ultrasonic waves, or the like. The detection signal passes through the wall surface and is reflected by the user's finger or palm. The detector of the personal authentication device detects this reflected wave. The sensor of the personal authentication device acquires biometric information such as a fingerprint and a palm print by this reflected wave. The personal authentication device may be provided at a plurality of locations on the door.

  The conventional personal authentication device in which the sensor portion is exposed to the outside has a problem that dirt easily accumulates on the contact surface with the living body. In addition, it is necessary to make a hole or the like in the device on which the personal authentication device is mounted, and the aesthetic appearance is easily impaired. The personal authentication device in the present embodiment is effective in solving such problems. It is not essential that the personal authentication device is not visible from the outside. For example, the location of the personal authentication device may be shown to the user by making the personal authentication device visible from the outside through a transparent or translucent cover or wall surface.

(Example 10)
The personal authentication device according to the present embodiment is provided in the accessory and includes a transmission unit that transmits an authentication result based on the acquired biometric information to an external device. This device is “a device that collects and authenticates biometric information and is worn on the body and transmits a signal that can be used to confirm the identity of the person at the time of identity authentication”.

  FIG. 19 is a diagram illustrating a mode in which personal authentication is executed by a biometric sensor built in a ring. The personal authentication device in the present embodiment built in the ring acquires biometric information from the user by a biometric sensor and executes authentication processing. The personal authentication device transmits the result of authentication to an external device. At this time, the ring may encrypt and transmit the authentication result.

  As a conventional personal authentication device, there is a device that possesses a wireless tag and authenticates the person by transmitting the ID of the wireless tag. However, there is a weakness that a wireless tag can be easily impersonated by someone else. In the personal authentication device according to the present embodiment, a biometric sensor is built in an accessory such as the back of a watch, glasses, a ring, a pendant, or a seal that is in close contact with the body. For this reason, even if another person uses these accessories, authentication is not successful because it cannot be matched with biometric information. Therefore, safety is higher than authentication by possession such as a wireless tag.

(Example 11)
The personal authentication device in the present embodiment includes a biometric information conversion device that converts biometric information into a predetermined format. This personal authentication device is an “authentication device that uses a personal filter between biometric information and a sensor”.

  FIG. 20 is a diagram illustrating a mode in which personal authentication is performed by a personal filter. The biometric sensor acquires biometric information through a personal filter. The personal filter is installed between the living body and the sensor, and transmits detection signals such as light and ultrasonic waves. At this time, the personal filter cuts off a part of the detection signal or changes the wavelength. This personal authentication device executes an authentication process based on the biometric information after the biometric information is changed by the personal filter. In other words, even a user who can be authenticated is not authenticated in a state where there is no personal filter.

  According to the personal authentication device of the present embodiment, even a person who is not adapted for biometric authentication can be adapted by blocking or correcting information that is not suitable for use by using a personal filter. Become. An information pattern necessary for authentication may be recorded in the personal filter. The personal authentication device reads the light reflected by irradiating the personal filter with a built-in optical sensor. When performing personal authentication, authentication may be performed by combining reflected light information and acquired biological information. That is, even in this case, authentication is not performed in the state where there is no personal filter. The light reflected by the personal filter may be light having a wavelength that is not reflected by the human body, and light that passes through the filter may be used for normal skin authentication.

(Example 12)
The personal authentication device according to the present embodiment includes a control unit that transmits a control signal to the toy in order to control the game content of the toy based on the authentication result. This personal authentication device transmits a control signal corresponding to the acquired biometric information to the toy. This apparatus is an “authentication apparatus that controls a toy using an authentication result”.

  FIG. 21 is a diagram illustrating a mode in which a toy is controlled by authentication. In the figure, a belt-like toy includes a personal authentication device. The authentication process is executed when the biometric sensor installed on the belt unit acquires biometric information. If the authentication is successful, the rotating body provided at the center of the belt rotates.

  FIG. 22 is a diagram illustrating another aspect of controlling the toy by authentication. In the figure, a biosensor is installed on the front surface of the game machine. When the biometric sensor acquires biometric information, the authentication processing unit built in the game machine executes an authentication process. If the authentication is successful, the character displayed on the game screen starts to move. The personal authentication device may detect the physiological state of the authenticated user, and the action content of the character may be changed based on the physiological state.

  According to the personal authentication device of the present embodiment, since a toy such as a transformation belt has a personal authentication function, it can be controlled not to operate even if a person other than the user tries to use the toy. Further, in a game machine that executes a game of a type in which a user nurtures a game character and battles with the cultivated game character, the user's biological information may be stored in association with the game character. When a user who is not a user who nurtures the game character executes the game or tries to operate the game character, the game character is controlled so that it cannot be used normally, such as in a behavior stop state. Also good.

(Example 13)
When receiving the signal from the external authentication device, the proving device according to the present embodiment converts the signal into a signal unique to the own device and transmits the signal to the external authentication device. This proving device is a “device having a part that reflects a unique light pattern”. The proving apparatus according to the present embodiment has a portion that reflects a unique pattern when light is applied to a card or key used for authentication.

  FIG. 23 is a diagram illustrating an appearance of a card-type proving device. The card-type proving device is provided with a reflecting portion, and reflects a light pattern unique to the proving device. A general key is identified by its shape, but in the case of the card type proving apparatus of this embodiment, the key is identified by the reflected light pattern. Therefore, since it is difficult to identify by shape compared to a key, it is highly effective in preventing forgery.

  FIG. 24 is a diagram illustrating an appearance of a key-type proof device. The key-type proving device is also provided with a reflecting portion, and reflects a light pattern unique to the proving device.

  FIG. 25 is a diagram illustrating an aspect of authentication by the proving device. When the certification device shown in FIG. 23 or FIG. 24 is inserted into an authentication device having an irradiation unit, the irradiation unit of the authentication device irradiates light. The light may be white light or a predetermined light pattern. The reflection unit of the proving device reflects light emitted from the irradiation unit. At this time, the proving device reflects a light pattern unique to the own device. The authentication device acquires reflected light with a sensor. Authentication processing is performed by collating the acquired reflected light pattern with a previously registered reflected light pattern. The authentication device performs unlocking processing if authentication is successful.

(Example 14)
The authentication device according to the present embodiment is configured to be detachable from the sensor. This authentication device is an “authentication device capable of exchanging sensors”.

  FIG. 26 is a diagram illustrating a mode in which the sensor of the authentication device is replaced. As shown in the drawing, the sensor of the authentication device is configured to be detachable from the base portion of the authentication device. Therefore, even if a sensor breaks down in the authentication device, it is not necessary to replace the entire authentication device body.

  When the conventional authentication device cannot be used due to a failure or the like, the entire authentication device including the sensor has to be replaced. However, even if the sensor cannot be used in the authentication device according to the present embodiment, only the sensor can be replaced. As a result, it is not necessary to replace the entire authentication apparatus, and the cost can be reduced.

(Example 15)
The authentication device according to the present embodiment is configured such that the sensor is detachable, and whether the sensor is a legitimate sensor compared to the identification information acquisition unit that reads the sensor identification information from the sensor and the sensor identification information registered in advance. The determination part which determines whether or not is provided. This authentication device is an “authentication device capable of detecting a counterfeit sensor”.

  FIG. 27 is a diagram illustrating a mode in which the authentication device detects a counterfeit sensor. An ID number is written on the surface of the sensor installed on the authentication device. The ID number here may be information that uniquely identifies the sensor, such as a barcode. The authentication device is provided with a reading device at a position where the ID number can be read. The ID number of the sensor that can be mounted in advance is recorded in the authentication device, and if the ID number read from the sensor matches the recorded ID number, the authentication device permits the mounting of the sensor. If they do not match, the authentication device notifies the user that it cannot be mounted by an alarm or warning display. Alternatively, the authentication device may perform control so that the sensor having the ID number that does not match the authentication processing unit is not electrically connected.

  FIG. 28 is a diagram illustrating another aspect in which the authentication device detects a counterfeit sensor. In this embodiment, the principle described in connection with the thirteenth embodiment is applied. That is, when the irradiating unit of the authentication device irradiates light to the reflecting unit of the sensor, the reflecting unit reflects the irradiation light with a light pattern unique to the sensor. And the light-receiving part of an authentication apparatus receives reflected light. The authentication device executes an authentication process related to sensor mounting by collating a light pattern of a sensor that is registered in advance with a received light pattern.

  According to the authentication apparatus in the present embodiment, it is possible to detect the mounting of the forgery sensor by providing the sensor with an ID number or a portion that reflects light with a specific light pattern.

(Example 16)
The authentication device in the present embodiment is “an authentication device that can detect an illegal signal input”. In this authentication device, even if a false signal is input as a biometric information signal directly to the terminal of the authentication device without using a sensor, a predetermined signal for verifying validity is included in the signal. If it is not installed, it will be detected to prevent fraud.

  FIG. 29 is a diagram illustrating a mode in which the authentication device detects an unauthorized signal. The sensor has an ID number, information unique to the sensor, and other parts that generate “information for indicating that the sensor is not an unauthorized sensor”. The signal output from the sensor includes not only biometric information for performing biometric authentication, but also “information for indicating that the sensor is not an unauthorized sensor”. An unauthorized input signal is detected by detecting whether the signal includes this information by an unauthorized signal detection device.

(Example 17)
The personal authentication device according to the present embodiment is an authentication device that acquires biometric information and executes an authentication process on the condition that a predetermined medium is interposed between the biometric device and the authentication device. At the site where dangerous goods are handled, it is certified when wearing gloves, and not certified with bare hands. This enables authentication including user equipment.

  In the above, this invention was demonstrated based on the Example. The present invention is not limited to this embodiment, and various modifications thereof are also effective as aspects of the present invention.

It is a figure which shows the aspect which acquires multiple types of biological information by arranging a biological sensor on a plane. It is a figure which shows the aspect which acquires multiple types of biometric information by carrying out the stacking | stacking arrangement | positioning of the biometric sensor. It is a figure which shows the aspect which acquires multiple types of biological information by arrange | positioning a biological sensor in parallel and stacking. It is a figure which shows the aspect which acquires multiple types of biometric information by carrying out the stacking | stacking arrangement | positioning of the authentication LSI in addition to a biometric sensor. It is a figure which shows the aspect which acquires multiple types of biological information by sweeping a biological sensor. It is a figure which shows the aspect which synthesize | combines biometric information by performing a logical operation on the biometric information acquired by the some biometric sensor. It is a figure which shows another aspect which synthesize | combines biometric information by performing a logical operation on the biometric information acquired by the some biometric sensor. It is a figure which shows the aspect which acquires biometric determination information with a blood-flow sensor. It is a figure which shows the aspect which corrects fingerprint information according to the pressure applied from the finger at the time of collection of fingerprint information. It is a figure which shows the structure of the optical information which acquires biometric information, and the authentication information input part which inputs the information for authentication. It is a figure which shows the aspect which spectrally receives the reflected light by a biological body. It is a figure which shows the aspect in which a personal authentication apparatus performs authentication through a glove. It is a figure which shows the aspect in which a personal authentication apparatus performs authentication via clothes. It is a figure which shows the aspect which acquires biometric information with a protrusion-shaped pressure detection element. It is a figure which shows another aspect which acquires biometric information with a pressure sensor element of a protrusion shape. It is a figure which shows the aspect which installs a personal authentication apparatus in a mobile telephone. It is a figure which shows the aspect which installs a personal authentication apparatus in the doorway of an elevator. It is a figure which shows another aspect which installs a personal authentication apparatus in the doorway of an elevator. It is a figure which shows the aspect which performs a personal authentication with the biometric sensor incorporated in a ring. It is a figure which shows the aspect which performs personal authentication by a private filter. It is a figure which shows the aspect which controls a toy by authentication. It is a figure which shows another aspect which controls a toy by authentication. It is a figure which shows the external appearance of a card-type certification | authentication apparatus. It is a figure which shows the external appearance of a key type | mold certification | authentication apparatus. It is a figure which shows the aspect of authentication by a certification | authentication apparatus. It is a figure which shows the aspect which replaces | exchanges the sensor of an authentication apparatus. It is a figure which shows the aspect which an authentication apparatus detects a forgery sensor. It is a figure which shows another aspect in which an authentication apparatus detects a forgery sensor. It is a figure which shows the aspect in which an authentication apparatus detects an unauthorized signal.

Claims (3)

A plurality of biological sensors provided to acquire biological information;
An authentication unit that authenticates a user based on the biometric information,
The plurality of biometric sensors are arranged such that input surfaces for receiving user inputs are arranged in parallel or stacked, and each biometric sensor acquires biometric information based on a single contact operation by the user. .   The personal authentication device according to claim 1, further comprising a synthesis correction unit that corrects the biological information by performing a logical operation on the biological information acquired from each of the plurality of biological sensors. An environmental sensor for acquiring external environmental information at the time of acquiring the biological information;
The personal authentication device according to claim 1, further comprising an environment correction unit that corrects the biological information with the external environment information.