JP2007007313A - Individual authenticating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a individual authenticating apparatus by which individual authenticating operation is carried out simply and speedily by simultaneously carrying out reading of fingerprint information and reading of personal information registered in advance in an IC chip without making a user feel insanitary. <P>SOLUTION: The individual authenticating apparatus consists of: an IC chip holder storing the personal information; an IC chip reader for reading the personal information in the IC chip without contacting while keeping the IC chip holder by a part of the fingers of the user; and a fingerprint reader for reading the fingerprint of a finger of the user without contacting at the same time of the reading operation of the IC chip reader. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a personal authentication device that uses a non-contact type fingerprint reader and a non-contact type IC chip reader.

  In order to prevent illegal intruders from entering the room and access to systems and devices by unqualified persons, a method using an IC card in which personal information is written is generally used. However, when high security is required, a personal authentication device of a type that also uses fingerprint information in addition to the IC card information is effective. For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 7-325949), an ID number is read by a card reader, a fingerprint is read by a fingerprint reader, and entry control is permitted only when the read data matches registered data. An apparatus is described.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 2005-38005) includes a fingerprint sensor unit for reading a user's fingerprint and a non-contact data reading / writing function unit for reading IC card data in a non-contact manner. The fingerprint information of the user's finger read by the sensor unit and the fingerprint information registered in advance in the non-contact IC card are compared and collated inside the computer to which the mouse is connected. It describes what the built-in authentication program works to allow the use of the computer.

  However, a sensor or reader that reads the fingerprint information is usually a so-called contact that places a human finger directly on the fingerprint detection plate and optically or electrically reads the presence or absence of contact between the skin and the detection plate. Because of the mold, the user's finger must be in direct contact with the fingerprint detection plate every time fingerprint information is read, giving the user unsanitary feeling and reducing the recognition rate due to the adhesion of finger grease. was there. In addition, since the fingerprint information reading operation and the personal information stored in the IC card must be performed separately, there is a problem that it takes time for the authentication work and it is difficult to improve the authentication efficiency.

Japanese Patent Laid-Open No. 7-325949 (see FIG. 1 and the explanation thereof) JP 2005-38005 A

  The present invention has been made to solve the above-described problems, and is designed to simultaneously perform reading of fingerprint information and reading of personal information pre-registered in the IC chip without giving the user unsanitary feelings. Thus, it is an object of the present invention to provide a personal authentication device that can perform a personal authentication operation in a short time.

  The personal authentication device according to the present invention includes an IC chip holder that holds an IC chip that stores personal information, and an individual in the IC chip in a state where the IC chip holder is held by a part of a user's finger. An IC chip reader that reads information in a non-contact manner and a fingerprint reader that reads the fingerprint of the same user's finger in a non-contact manner simultaneously with the reading operation of the IC chip reader.

  By using the non-contact type fingerprint reader and the non-contact type IC chip reader, the fingerprint information and the pre-registered personal information are simultaneously read without giving the user unsanitary feeling. By doing so, the personal authentication operation can be performed easily and in a short time.

Embodiment 1.
FIG. 1 shows a system configuration diagram of a personal authentication apparatus according to Embodiment 1 of the present invention. In the figure, reference numeral 1 denotes an IC chip holding body such as an IC card in which an IC chip is embedded on a part of the surface. The IC card 1 is sandwiched between user's fingers 3 and 4 (for example, index and middle fingers). Show. In this state, as will be described in detail later, fingerprint information is read by the non-contact type fingerprint reader 30 and personal information is read by the non-contact type IC chip reader 40 at the same time.

  First, the non-contact type fingerprint reader 30 will be described. The fingerprint reading device 30 includes a light source 5, an imaging unit 8, a control unit 10, a fingerprint image processing unit 11, a registered fingerprint database 12, and a fingerprint collation unit 13. The light source 5 has a light quantity adjustment function and is always lit dark when the system is in operation. For example, a laser, a light emitting diode, or a lamp light source is used to irradiate projection light including red light or near infrared light region projection light or red light or near infrared light region light. The light in the red light or near infrared light region preferably has a wavelength of 650 nm to 1400 nm.

  The fingertips 3 and 4 have a fingerprint having a concavo-convex pattern, and the light 6 emitted from the light source 5 passes through the fingertips 3 or 4 and becomes transmitted light 7. The transmitted light 7 is emitted as scattered light from the convex portion and the concave portion of the fingerprint. The imaging means 8 for imaging the transmitted light 7 may be a well-known one, and generally includes an imaging lens 81, an imaging element 82, and an image output circuit 83. The image pickup element 82 is, for example, a two-dimensional solid-state image pickup element (CCD, CMOS image sensor) or an image pickup tube, and has sensitivity to light that has passed through the fingerprint, that is, sensitivity to light in the red light to near infrared light region. The imaging means 8 is shielded from light other than the light from the fingers 3 and 4.

  Here, since the transmittance of light transmitted through the fingertip is higher in the concave portion than in the convex portion of the fingerprint, the intensity of the transmitted light 7 that has passed through the fingerprint on the fingertip is higher in the concave portion than in the convex portion of the fingerprint. The light intensity distribution corresponds to the uneven pattern. Then, the light intensity distribution of the light transmitted through the fingertip on the surface of the fingerprint is imaged on the imaging element 82 by the imaging lens 81 of the imaging means 8. In this way, a brighter fingerprint image is obtained in the concave portion than in the convex portion of the fingerprint.

  The control unit 10 receives the output image from the imaging device 8 and controls the light quantity of the light source 5 and the operation of the non-contact IC chip reader 9. The fingerprint image processing unit 11 receives the image input from the imaging device 8. The image is converted into an image suitable for fingerprint collation and output to the fingerprint collation unit 13. The registered fingerprint database 12 stores user's fingerprint information registered in advance, and the fingerprint collation unit 13 collates with the output image from the fingerprint image processing unit 11. The fingerprint collation unit 13 has a function of outputting only when the output image from the fingerprint image processing unit 11 matches the stored data of the registered fingerprint database 12.

  Next, the non-contact type IC card reader 40 is registered in advance with the non-contact type IC chip reader 9 having a function of reading the personal information of the user stored in advance in the IC chip 2 without directly touching the IC card 1. The personal information database 14 for storing the personal information of the user and the personal information matching unit 15 are configured. Reading and writing of information with respect to the IC chip 2 is performed using an electromagnetic induction phenomenon between a coil (not shown) in the IC chip 2 and an antenna provided in the IC chip reader 9. Data cannot be read or written unless the non-contact type IC chip 2 is within the communication range of the IC chip reader 9.

  The IC chip reader 9 is connected to a host computer (not shown) which is a host device, and various main processes are executed by this host computer. The personal information collation unit 15 has a function of collating the information stored in the IC chip 2 read by the non-contact IC chip reader 9 with the stored data in the personal information database 14 and outputting only when they match. . Reference numeral 16 denotes an AND circuit for inputting the output of the fingerprint collation unit 13 and the output of the personal information collation unit 15, and both the output of the fingerprint collation unit 13 and the output of the personal information collation unit 15 exist. Only in this case is OK, and personal authentication is established.

  Next, the user authentication procedure of the first embodiment will be described with reference to the flowchart of FIG. First, as shown in FIG. 1, the user holds the IC card 1 containing the IC chip 2 between the index finger 3 and the middle finger 4 so that the surface of the fingerprint on the fingertip is in a non-contact state ( (Step 1). Next, an operation is performed so that the fingerprints of the fingers 3 and 4 are positioned between the light source 5 and the imaging device (camera) 8 and the IC chip 2 falls within the readable range of the non-contact IC chip reader 9 (step 2). Then, the control unit 10 senses that the dark lighting of the light source 5 shown in the captured image is blocked (step 3), and issues a bright lighting command to the light source 5 to generate the transmitted light 7 including the fingerprint information. At the same time, a read command for reading the internal information of the IC chip 2 is output to the non-contact IC chip reader 9 to read the IC chip (step 4).

  In response to a command from the control unit 10, the light source 5 increases the amount of light, and transmitted light 7 including fingerprint information is generated, and the imaging device 8 outputs an output image including fingerprint information. Therefore, when the output image of the camera 8 includes fingerprint information and the internal information of the IC chip 2 is successfully read (step 5), the fingerprint image processing unit 11 converts the input image into an image suitable for fingerprint verification (step 5). 6). If the output image of the camera 8 includes fingerprint information in step 5 and the internal information of the IC chip 2 is not successfully read, the transmitted light 7 includes the fingerprint information, and the internal information of the IC chip 2 can be read. The positions of 3 and 4 are adjusted (step 7).

  Subsequently, an image obtained by imaging the transmitted light 7 is output to the fingerprint image processing unit 13, and the fingerprint image processing unit 13 collates the input image from the imaging device 8 with the stored data in the registered fingerprint database 12 (step 8). If the collation result (step 9) is OK, the personal information collation unit 15 collates the data built in the IC chip with the data stored in the personal information database 14 (step 10). If the collation result (step 11) is OK, a personal authentication signal is output from the AND circuit 16 (step 12). If the verification is NO, the final personal authentication is rejected (step 13).

  As described above, according to the first embodiment of the present invention, the function of reading the user's fingerprint information by imaging the transmitted light of the user's finger without directly touching the user's finger to read the fingerprint information. By simultaneously operating a non-contact type fingerprint reader 30 having a non-contact type IC chip reader 40 and a non-contact type IC chip reader 40 capable of reading personal information stored in the IC chip without directly touching the IC chip. The fingerprint information and the pre-registered personal information can be read at the same time without causing the person to feel unsanitary, and the personal authentication operation can be performed easily and in a short time.

Embodiment 2.
In the above-described first embodiment, the IC card is sandwiched between the fingers to operate the fingerprint information and the information stored in the IC chip are simultaneously read. Various other modified examples can be considered. FIG. 3 is a block diagram of the reading unit showing the simultaneous reading method according to the second embodiment. The other parts of the non-contact type fingerprint reading device 30 and the non-contact type IC chip reading device 40 are the same as those in the first embodiment. Since it is the same, explanation is omitted. According to this embodiment, as shown in the figure, the IC card 1 is held between the thumb 20 and the index finger 3 of the same hand, and fingerprint detection is performed with the remaining other finger (for example, the middle finger) 4. .

  Even in this way, reading of fingerprint information and reading of information stored in the IC chip can be performed simultaneously, and the IC card is located between the coil in the IC chip 2 and the antenna provided in the IC chip reader 9. Therefore, the degree of freedom is given to the relationship between the reading position of the fingerprint information and the reading position of the IC chip information, and the operability is improved and the design freedom is also improved. There is.

Embodiment 3.
In this embodiment, as shown in FIG. 4, the IC card 1 is held between the thumb 20 and the index finger 3 of the same hand as in the second embodiment, but the finger of the other hand 21 is for reading fingerprint information. Since the configuration of the other parts of the non-contact type fingerprint reader 30 and the non-contact type IC card reader 40 is the same as that of the first embodiment, description thereof is omitted. It goes without saying that the operability and the degree of design freedom are further improved by such a configuration.

Embodiment 4.
In this embodiment, as shown in FIG. 5, the IC chip 2 is built in or held in a ring base and the IC ring 22 is used as an IC chip holder. The user can simultaneously perform reading of the fingerprint information and reading of the information stored in the IC chip by operating the IC ring 22 while fitting the IC ring 22 on the finger 4 as shown in the figure. In this case, since the fingerprint information reading and the IC chip reader reading can be performed simultaneously only by holding one finger fitted with the IC ring at a predetermined position, the personal authentication operation can be further simplified and speeded up.

Embodiment 5.
In this embodiment, when the fingerprint information is read with the finger 21 of the other hand in the third embodiment, a plurality of fingers 21 and 23 are used as shown in FIG. is there. For this reason, the subject holding part 25 having the hole part 24 for holding the plurality of fingers in a predetermined position is used so that the fingerprint surface of each fingertip is in a non-contact state. By imaging the transmitted light from the plurality of fingers, fingerprint information of each finger and finger length difference information can be simultaneously read. The accuracy of personal authentication is verified by collating the fingerprint information and finger length difference information of each finger with the fingerprint information and finger length difference information registered in advance or stored in the IC chip. Can be further improved.

  Note that the present invention can be applied to various uses such as prevention of illegal intruders from entering the room, prevention of unauthorized persons from accessing the systems and devices, prevention of use of elevators by unqualified persons, and prevention of vehicle theft.

1 shows a system configuration diagram of a personal authentication device according to Embodiment 1 of the present invention. FIG. It is a flowchart which shows the user authentication procedure by Embodiment 1 of this invention. It is a reading part block diagram which shows the simultaneous read system by Embodiment 2 of this invention. It is a reading part block diagram which shows the simultaneous read system by Embodiment 3 of this invention. It is a reading part block diagram which shows the simultaneous read system by Embodiment 4 of this invention. It is a reading part block diagram which shows the simultaneous read system by Embodiment 5 of this invention.

Explanation of symbols

1 IC card,
2 IC chip,
3, 4 fingers,
5 light source,
6 Irradiation light,
7 Transmitted light,
8 imaging means,
9 Non-contact IC chip reader,
10 control unit,
11 Fingerprint image processing unit,
12 Registered fingerprint database,
13 Fingerprint verification part,
14 Personal information database,
15 Personal Information Verification Department,
16 AND circuit,
25 Subject holding part.

Claims (10)

  An IC chip holder that holds an IC chip storing personal information, and an IC chip reader that reads the personal information in the IC chip in a non-contact manner while the IC chip holder is held by a part of a user's finger. A personal authentication apparatus comprising: an apparatus; and a fingerprint reader that reads a fingerprint of the same user's finger in a non-contact manner simultaneously with a reading operation of the IC chip reader.   The fingerprint reader includes: a light source that emits light that passes through the fingertip; an imaging device that captures the transmitted light from the fingertip; and an output image from the imaging device that receives the light amount of the light source and the IC chip reader. The personal authentication device according to claim 1, further comprising a control device that controls the operation.   A personal information collation unit for collating the read output of the IC chip reader with stored data in a personal information database registered in advance; the read output of the fingerprint reader and stored data in a registered fingerprint database registered in advance The personal authentication device according to claim 1, further comprising: a fingerprint collation unit that collates with each other, and performing personal authentication when the personal information collation unit and the fingerprint collation unit are simultaneously established.   3. The personal authentication apparatus according to claim 1, wherein the IC chip holder is an IC card in which an IC chip is embedded.   3. The personal authentication apparatus according to claim 1, wherein the IC chip holder is an IC ring in which an IC chip is embedded in part.   The IC chip reader is read while the IC card is sandwiched between two fingers of the user, and the fingerprint reader is read through at least one of the two fingers or another finger. The personal authentication device according to claim 4, wherein the personal authentication device is configured as described above.   The IC chip reader is read while the IC card is sandwiched between two fingers of the user, and the fingerprint reader is read through at least one finger of the other user's hand. The personal authentication device according to claim 4, wherein the personal authentication device is configured as described above.   The IC chip reader is read while the IC ring is fitted on one finger of the user, and the fingerprint reader is read through at least one finger of the IC ring or the other hand. The personal authentication device according to claim 5, wherein operation is performed.   9. The personal authentication device according to claim 7 or 8, wherein the reading operation of the fingerprint reading device is performed by reading fingerprints of a plurality of fingers.   The personal authentication according to claim 1, wherein the fingerprint reading device includes a subject holding unit having a hole for holding the fingertip in a predetermined position so that a surface of the fingerprint is in a non-contact state. apparatus.

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