JPH0935060A - Fingerprint collation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a processing time by eliminating the wait time from the insertion of an optical card into a device to a read of medium discrimination information. SOLUTION: This fingerprint collation system, which has a host computer 50, an information recording and reproducing device 51 which reads fingerprint data out of the optical card 1, and a fingerprint input device and confirms whether or not a fingerprint input person is the bearer of the optical card 1 by collating fingerprint data from the fingerprint input device with the fingerprint data of the optical card 1, starts processing for fingerprint collation before the medium discrimination information for confirming whether or not the optical card 1 is proper is read out of the optical card 1 when the optical card 1 is inserted into the information recording and reproducing device 51.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fingerprint collation system for confirming the identity of a person by collating fingerprints.

[0002]

2. Description of the Related Art FIG. 7 is a block diagram showing a schematic configuration of a conventional fingerprint collation system. FIG. 7 shows an example of a system using the optical card 1. In FIG. 7, first, fingerprint information of the person (the owner of the optical card) is recorded on the optical card 1 in advance. The host computer 50 is a host controller, and is connected with an optical card information recording / reproducing device 51 and a fingerprint input device 52. The host computer 50 monitors whether or not the optical card 1 is inserted into the information recording / reproducing apparatus 51. When the optical card 1 is inserted, the fingerprint input device 52 is set in the fingerprint input state, and the owner of the optical card 1 Asks you to enter your fingerprint.

On the other hand, the host computer 50 instructs the information recording / reproducing apparatus 51 to read the fingerprint data of the optical card 1, and the read fingerprint data is transferred to the host computer 50. The optical card 1 is ejected out of the machine when the reading of the fingerprint data is completed. The host computer 50 waits for the fingerprint data to be transferred from the fingerprint input device 52, and when all the fingerprint data is received, the host computer 50 collates with the fingerprint data read from the optical card 1 to determine whether or not the user is the original person.

Since the optical card 1 is removable, the host computer 50 accesses the optical card 1 from the host computer 50 when the optical card 1 is not inserted in the information recording / reproducing apparatus 51. When a request is issued, it does not execute the instruction. In addition, the information recording / reproducing device 5
In order to prepare for accessing the optical card 1 immediately after the optical card 1 is inserted into the information recording / reproducing apparatus 1, the information recording / reproducing apparatus can be used even when the access request is issued from the host computer 50 before the preparation for the access is completed. 51 cannot execute the command.

Therefore, normally, in response to a command from the host computer 50, the information recording / reproducing apparatus 51 notifies the execution result of the command. The execution result includes an error code for identifying the cause when the error occurs, and the host computer 50 recognizes the cause of the error by referring to the error code. Also,
The information recording / reproducing apparatus 51 notifies the host computer 50 of a status indicating whether or not the optical card 1 can be accessed, and the host computer 50 refers to the status to judge whether or not the optical card 1 can be accessed.

FIG. 8 is a diagram showing error codes of such an information recording / reproducing apparatus 51. In FIG. 8, error code 00H is a code indicating that the command from the host computer 50 has been normally completed, and 01H is the optical card 1 not inserted in the device, or preparation for access to the optical card 1 is not completed. It is a code indicating that. 02
H is a code indicating that the illegal optical card 1 is inserted. When the optical card 1 is not inserted in the information recording / reproducing apparatus 51, an error code 01H is set and the host computer 50 is notified. Optical card 1
Even if the optical card 1 is inserted, until the optical card 1 is detected and the medium identification information of the optical card 1 is read to confirm that the optical card is not an illegal optical card, the error code 01H is similarly set. It Media identification information is optical card 1
Is information to confirm that is not illegal,
It is recorded in a predetermined area of the optical card 1.

On the other hand, if the medium identification information cannot be read, or if the optical card 1 is illegal from the read medium identification information, the error code of the execution result for the issued instruction is set to 02H and the host computer 50 will be notified. In addition, the medium identification information is normal,
00H is notified only when the issued instruction is correctly executed. As described above, the host computer 50 refers to the execution result from the information recording / reproducing apparatus 51 in response to the instruction to determine whether the optical card 1 can be accessed.

FIG. 9 is a diagram showing status codes of the information recording / reproducing apparatus 51. In FIG. 9, 901 is a card flag indicating whether or not the optical card 1 is set in the apparatus, and 902 is a medium identification flag indicating whether or not the medium identification information of the optical card 1 is correct. The card flag 901 is set to 0 when the optical card 1 is not inserted in the device or when the optical card 1 is inserted in the device and until the medium identification information is read. After reading the medium identification information of the optical card 1, the card flag 901 is set to 1. If the medium identification information of the optical card 1 cannot be read, or if the read medium identification information is an illegal optical card, the medium identification flag 902 is set to 0, and the medium identification information is correct only when the medium identification information is correct. The flag 902 is set to 1. The host computer 50 acquires such a status code from the information recording / reproducing apparatus 50 to determine whether the optical card 1 is inserted in the apparatus or whether the inserted optical card 1 can be accessed.

[0009]

However, in the above-mentioned conventional fingerprint collation system, when the optical card 1 is inserted into the information recording / reproducing apparatus 51, the error code 01H is set until the medium identification information is read, The card flag 901 is also set to 0. Therefore, until the reading of the medium identification information of the optical card 1 is completed, the host computer 50 cannot detect that the optical card 1 is inserted, and a waiting time occurs during this period, so that the system waits. There was a problem that the whole processing time was lengthened.

In view of the above conventional problems, it is an object of the present invention to provide a fingerprint collation system which eliminates the waiting time required to read out medium identification information and shortens the fingerprint collation processing time. Is.

[0011]

SUMMARY OF THE INVENTION An object of the present invention is to provide a host computer, a fingerprint input device connected to the host computer for inputting a fingerprint, and connected to the host computer, and previously recorded on an information recording medium. A fingerprint data reading device for reading the fingerprint data obtained,
By comparing the fingerprint data input from the fingerprint input device with the fingerprint data read from the recording medium, it is confirmed whether the person who entered the fingerprint into the fingerprint input device is the owner of the recording medium. In the fingerprint collation system, when the recording medium is inserted into the fingerprint data reading device, before reading the medium identification information for confirming that the medium recorded in the recording medium is authentic, It is achieved by a fingerprint matching system characterized by initiating a process for fingerprint matching.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. First, FIG. 1 is a diagram showing a configuration example of an information recording / reproducing apparatus used in the fingerprint collation system of the present embodiment. The overall configuration of the fingerprint collation system is the same as that of FIG. 7, and an example of the information recording / reproducing device 51 therein is shown in FIG. In FIG. 1, 63 is an MPU for controlling each unit in the apparatus. MPU6
Reference numeral 3 exchanges commands, data, error codes, etc. with the host computer 50. Further, the modulation / demodulation circuit 53 modulates the recording information and the reproduction information, the semiconductor laser driving circuit 54 drives the semiconductor laser provided in the optical head 56, and the AT / AF control circuit 55 uses the optical head 56.
The tracking and focus of the light spot emitted from the optical card 1 to the optical card 1 are controlled. In addition to the semiconductor laser, the optical head 56 is provided with various optical elements such as an objective lens that narrows the laser beam into a minute light spot and an optical sensor that detects the reflected light from the optical card 1.

The optical head 56 can be moved in the transverse direction of the track by driving the pulse motor 57, so that the optical spot can access a desired track of the optical card 1. The optical card 1 is reciprocally moved in the track direction by driving the DC motor 58, so that the optical spot from the optical head 56 scans the track of the optical card 1. A rotary encoder 59 is attached to the DC motor 58, and
The amount of movement of the optical card 1 is detected by detecting the amount of rotation of the C motor 58. The DC motor 58 is the PLL 6
It is controlled by 0 to rotate at a constant speed. An insertion sensor 61 is provided in the card insertion port to detect the inserted optical card 1, and a discrimination sensor 62 is provided in the vicinity of the optical card 1 inside the apparatus to detect the inserted optical card. It is detected whether 1 is inserted in the correct posture.

When the optical card 1 is inserted into the information recording / reproducing apparatus 51, the optical card 1 is detected by the insertion sensor 61 and a detection signal is sent to the MPU 63. Upon receiving the detection signal, the MPU 63 controls the DC motor 58 to convey the optical card 1 to a predetermined position in the device. That is, optical card 1
Is driven to a predetermined position by driving a DC motor 58 and guided by a transfer mechanism (not shown). In the discrimination sensor 62,
It is determined whether or not the optical card 1 is inserted in the proper posture during the transportation, and the determination result is notified to the MPU 63. M
Based on the result of the determination, the PU 63 determines that the DC motor 58 has not been inserted if there is an erroneous insertion such as insertion from the opposite direction.
Is reversed to eject the optical card 1 to the card insertion slot, and when the optical card 1 is inserted in a proper posture, the DC motor 58 is controlled as it is and conveyed to a predetermined position.

When the optical card 1 reaches a predetermined position, MP
U63 controls the semiconductor laser drive circuit 54 to turn on the semiconductor laser in the optical head 56. Then MPU63
Controls the AT / AF control circuit 55 to pull in the AF,
The optical card 1 is operated by pulling in the AT and then controlling each part.
The medium identification information of is reproduced. The medium identification information is information for determining whether the inserted optical card 1 is an unauthorized optical card. If it is a normal optical card, then the optical card 1 is accessed according to the instruction from the host computer 50.

FIG. 2 is a diagram showing an optical card 1 used in this embodiment. In FIG. 2, in the recording area 2 of the optical card 1, a large number of tracking tracks 3 _{1 to} 3 _n are arranged in parallel,
And they are provided at regular intervals. Between each tracking tracks, the information track 4 ₁ to 4 _n-1 is provided for recording information, for example, of the information track 1
Information 7 is recorded on one of them. Further, marks 5a to 5d (referred to as G marks) indicating reference positions are recorded at four predetermined positions in the recording area 2, and the two information tracks 4 ₃ and 4 _n-3 on which the G marks are recorded are recorded. Medium identification information 6a, 6
b is recorded. At a predetermined corner of the recording area 2, a home position 8 for initially pulling in the AF is provided.

FIG. 3 is a diagram showing a specific example of the fingerprint input device used in this embodiment, that is, the fingerprint input device 52 in the system of FIG. In FIG. 3, reference numeral 15 is a fingerprint reading unit for reading a fingerprint. The fingerprint data read by the fingerprint reading unit 15 is digitized by the A / D converter 13 and sent to the MPU 11. Reference numeral 20 is an RS232 CI / F that communicates with the host computer 50, and the MPU 11 sends and receives fingerprint data, commands, and the like to and from the host computer 50 via the RS232 CI / F 20.

FIG. 4 is a diagram showing error codes of the information recording / reproducing apparatus 51 used in this embodiment. In FIG.
00H is a code indicating that the command from the host computer 50 has been normally terminated, and 01H is a code indicating that the optical card 1 is not inserted. 02H is a code indicating that an unauthorized optical card has been inserted. Further, in the present embodiment, in addition to these codes, an error code 03 indicating that preparation for accessing the optical card is not completed
H is provided.

In the present embodiment, when the optical card 1 is not inserted, 01H is set as the error code of the execution result for the instruction issued from the host computer 50. Further, 03H is used as the error code of the execution result for the command issued from the host computer 50 after the optical sensor 1 is detected by the insertion sensor 61 and the reading of the medium identification information is completed. When the medium identification information of the optical card 1 cannot be read or the read medium identification information is incorrect, the error code of the execution result for the issued instruction is set to 02H. When the read medium identification information is normal and the issued instruction can be executed correctly, 00H is set.

Next, the operation of the fingerprint collation system of this embodiment will be described with reference to FIG. In this embodiment, it is assumed that the fingerprint collation system is used to manage entry into a confidential storage room of a company or the like. In FIG. 5, first, the MPU 63 monitors whether or not the optical card 1 is inserted in the information recording / reproducing device 51 (S1). In this state, the host computer 50 checks the execution result of issuing the command to the information recording / reproducing apparatus 51, and repeatedly issues the command until the error code becomes a code other than 01H indicating that the optical card 1 is not inserted. . When the insertion of the optical card 1 is detected, the information recording / reproducing apparatus 51 notifies the host computer 50 of the error code 03H as described above. When the host computer 50 receives the error code 03H, the fingerprint input apparatus 52 enters the room. The fingerprint of the person who wants to input is instructed, and the reading of the fingerprint is started (S2).

At the same time, the host computer 50 gives an instruction to read the medium identification information of the optical card 1 inserted in the information recording / reproducing apparatus 51, and the information recording / reproducing apparatus 51 makes a normal optical card based on the read medium identifying information. It is determined whether it is 1 (S3). If the optical card is an unauthorized one, the optical card is ejected out of the machine (S4), and the host computer 50 is notified of the error code 02H. In this case, the host computer 50 takes measures against the unauthorized use of the optical card, for example, by notifying the security room. On the other hand, if it is a normal optical card, the host computer 50 is notified of 00H and the host computer 5
When 0 is received, 0 instructs the information recording / reproducing device 51 to read out fingerprint collation data. As a result, the information recording / reproducing apparatus 51 reads the fingerprint collation data recorded on the optical card 1 and transfers it to the host computer 50 (S
5) When the reading of all fingerprint collation data is completed, the optical card 1 is ejected out of the machine (S6). In S7, it is judged whether or not the fingerprint collation data of the optical card 1 has been normally read out, and if the fingerprint collation data cannot be read out, S
The process returns to 1 and waits for the insertion of the optical card 1. When the fingerprint collation data is normally read, the host computer 50 is notified of 00H indicating that the command has been normally completed.

Next, the host computer 50 waits for the fingerprint data read by the fingerprint input device 52 to be transmitted (S8), and when all the fingerprint data is transmitted, this fingerprint data and the fingerprint collation of the optical card 1 are collated. The data is collated (S9). Then, it is determined whether or not the two fingerprint data match (S10), and if they match, the door of the confidential storage room is unlocked (S11), and the entry is permitted. On the other hand, if they do not match, the host computer 50 takes measures such as contacting a security room or the like to prevent unauthorized entry.

Next, another embodiment of the present invention will be described. FIG. 6 is a diagram showing status codes of the information recording / reproducing apparatus 51 used in this embodiment. In FIG. 6, 60
A card flag 1 indicates whether or not the optical card 1 is inserted in the information recording / reproducing apparatus 51. Card flag 6
01 is set to 0 when the optical card 1 is not inserted, and is set to 1 when the insertion sensor 61 detects insertion of the optical card 1. 602 is the information recording / reproducing apparatus 5
2 is a medium identification flag indicating whether the medium identification information of the optical card 1 inserted in 1 is correct. Medium identification flag 60
2 is set to 0 when the medium identification information cannot be read or the read medium identification information is incorrect, and is set to 1 when the medium identification information is correct. In the present embodiment, the optical card 1 inserted in the information recording / reproducing apparatus 51 is also used.
A ready flag 603 indicating that the reading of the medium identification information has been completed is provided. Ready flag 60
3 is set to 0 when the insertion card 61 detects the optical card 1, and is set to 1 when the reading of the medium identification information is completed.

Next, the operation of the fingerprint collation system of this embodiment will be described. Also in this embodiment, the processing is performed according to the flowchart of FIG. In FIG. 5, first, the optical card 1 waits until it is inserted (S1), and in this state, the information recording / reproducing apparatus 51 sets the card flag 601 to 0. When waiting for the insertion of the optical card 1, the host computer 50 repeatedly issues a command until the card flag 601 becomes 1. When the optical card 1 is inserted in S1, the information recording / reproducing apparatus 51 sets the card flag 601 to 1, and when the host computer 50 acquires it, the fingerprint input device 52 is input with the fingerprint of the person who is about to enter the room. Then, the fingerprint input device 52 starts reading the fingerprint (S
2). The host computer 50 also gives an instruction to read the medium identification information of the optical card 1 inserted in the information recording / reproducing apparatus 51, and waits until the preparation completion flag of the information recording / reproducing apparatus 51 becomes 1. That is, the information recording / reproducing apparatus 51 sets the ready flag to 1 when reading the medium identification information,
In addition, it is determined whether the optical card is illegal based on the medium identification information. If the card is an unauthorized optical card, the medium identification flag 602 is set to 0, and if the card is legitimate, 1 is set.

The host computer 50 refers to the medium identification flag to determine whether it is a normal optical card (S
3) If the optical card is an illegal optical card, the security room is informed that the illegal optical card has been used.
Further, the information recording / reproducing apparatus 51 ejects the optical card 1 out of the machine (S4). On the other hand, if it is a normal optical card,
The information recording / reproducing device 51 is instructed to read out the fingerprint collation data recorded on the optical card 1. As a result, the information recording / reproducing apparatus 51 reads out the fingerprint collation data of the optical card 1 (S5), transfers it to the host computer 50, and ejects the optical card 1 out of the machine when all the fingerprint data is read out (S6). The information recording / reproducing apparatus 51 is an optical card 1.
It is judged whether or not the fingerprint collation data of 1 has been normally read out (S7), and if it cannot be read out normally, the process returns to S1 and waits for the insertion of the optical card 1.

On the other hand, when the fingerprint collation data can be read normally, the host computer 50 waits for the fingerprint data input from the fingerprint input device 52 to be transmitted (S
8) When all the fingerprint data has been transmitted, the fingerprint collation data read from the optical card 1 is collated (S9). Then, it is determined whether the two fingerprint data match (S
10) If they match, the door of the confidential storage room is unlocked to permit entry, and if they do not match, the security room is contacted to take measures against unauthorized entry.

In the above embodiment, the information recording / reproducing device 51 is provided in the system to read the medium identification information of the optical card and the fingerprint collation data. However, the personal fingerprint data is recorded in the optical card 1. In this case, the fingerprint data is recorded on the optical card 1 by the recording function of the information recording / reproducing device 51. If you don't need to record, you only have to have the playback function.

[0028]

As described above, according to the present invention, when the recording medium is inserted, the fingerprint collation process is started immediately, so that the waiting time from the insertion of the recording medium until the medium identification information is read. There is an effect that time is not needed and the entire time required for fingerprint collation can be shortened.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of an information recording / reproducing apparatus used in a fingerprint collation system of the present invention.

FIG. 2 is a diagram showing an example of an optical card used in the fingerprint matching system of the present invention.

FIG. 3 is a block diagram showing an example of a fingerprint input device used in the fingerprint matching system of the present invention.

FIG. 4 is a diagram showing error codes used in the information recording / reproducing apparatus of FIG.

FIG. 5 is a flowchart showing an example of fingerprint collation processing in the fingerprint collation system of the present invention.

FIG. 6 is a diagram showing a status code used in another embodiment of the present invention.

FIG. 7 is a block diagram showing a schematic configuration of a fingerprint matching system.

FIG. 8 is a diagram showing error codes used in a conventional fingerprint matching system.

FIG. 9 is a diagram showing status codes used in a conventional fingerprint matching system.

[Explanation of symbols]

 1 Optical Card 50 Host Computer 51 Information Recording / Reproducing Device 52 Fingerprint Input Device 53 Modulation / Demodulation Circuit 54 Semiconductor Laser Driving Circuit 55 AT / AF Control Circuit 56 Optical Head 57 Pulse Motor 58 DC Motor 61 Insertion Sensor 62 Discrimination Sensor 63 MPU

Claims (1)

[Claims] 1. A host computer, a fingerprint input device connected to the host computer for inputting a fingerprint, and fingerprint data connected to the host computer for reading fingerprint data prerecorded on an information recording medium. The fingerprint input device has a reading device, and by comparing the fingerprint data input from the fingerprint input device with the fingerprint data read from the recording medium, the fingerprint input person to the fingerprint input device is the owner of the recording medium. In the fingerprint collation system for confirming whether or not, when the recording medium is inserted into the fingerprint data reading device, a medium for confirming that the medium recorded in the recording medium is authentic A fingerprint collation system characterized by starting a process for collating a fingerprint before reading identification information.