JP2000227902A - Portable device for personal identification and device and system for personal identification - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for improving the accuracy of personal identification by a person identifying portable device such as a card. SOLUTION: The personal identification system for identifying person by using the person identifying portable device 1 includes a measuring means included in the device 1 and capable of measuring physical quantity existing around the device 1 or impressed to the device 1, a recording means built in the device 1 and capable of continuously recording information related to the measured physical quantity and a checking means for built in a personal identification device 3 and capable of calculating similarity with reference information by using the information related to the physical quantity and received from the recording means. The portable device 1 is carried by its owner so as to record the change pattern of prescribed physical quantity. The device 3 compares a reference pattern with the recorded change pattern to identify the person himself (or herself).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for performing identity verification, and more particularly, to measure and record history information of a predetermined physical quantity that has been passed to a user in advance to perform identity verification. The present invention relates to a personal identification portable device, an identification device that performs personal identification using information measured and recorded by the personal identification portable device, and a personal identification system that combines the personal identification portable device and the personal identification device.

[0002]

2. Description of the Related Art For example, a genuine holder of a credit card or the like or an ATM (Automated
The so-called identity verification for confirming the identity of the account holder in, for example, Teller Machine is used in various situations. In addition to the above example, identity verification is performed when entering and exiting a specific facility, providing administrative services, using an information system, and the like. In many cases, such identification is based on the premise that a user of a service or the like brings a card or the like to a place where the service or the like is provided. However, in identity verification using only personal identification cards such as cards, a person other than the person can easily impersonate himself by acquiring another person's card, etc., and receive services and the like illegally. In some cases, however, the accuracy of identity verification needs to be slightly increased. In such a case, whether the user knows a pre-registered password or password, can enter the same signature as the signature recorded on the card, etc., matches the face photo printed on the card, etc., Whether physical features such as fingerprints and retinal patterns match are examined. These personal identification methods are used alone or in any combination thereof.

[0003] When such identification is performed by a machine without human intervention, a password is often used. However, the security code is illegally obtained in such a way that it is inadvertently revealed by the user, that he / she sees the place where he / she is typing, or that he / she sees the password memo written by himself / herself. In some cases. In some cases, the principal may teach another person for the sake of convenience, contrary to the intention of the identity verification requesting side. Even in the case of identity verification by a person, there is a case where the signature or the face photograph is not surely confirmed.

[0004] Further, if the accuracy of personal identification is to be further enhanced, the work or mental burden of humans, such as an increase in the number of digits of a personal identification number, is increased, and an inspection device based on physical characteristics such as fingerprints and retinal patterns is required. Or incur significant costs. Occasionally, there may be a case where the work for personal identification becomes a burden and the operation to be performed after the personal identification is avoided.

[0005]

As described above, the conventional method of identifying a person using a portable object such as a card has a variety of problems. The purpose of the present invention is
An object of the present invention is to provide a personal identification portable device, an identification device, and an identification system that can increase the accuracy of identification in personal identification using a personal identification portable object such as a card. Another object of the present invention is to provide a personal identification portable device, an identification device, and an identification system device that can reduce the work or mental burden for identification.

[0006]

Means for Solving the Problems A personal identification portable device used for solving the above-mentioned problems includes a measuring means for measuring a physical quantity around or added to the personal identification portable device, and a measured physical quantity. Recording means for successively recording information on the information. Thereby, the change of the physical quantity around the person carrying the personal identification portable device can be recorded, and this change is a change when the genuine holder carries it or when another person carries it. This is a material for judging whether or not the change has occurred.

[0007] The personal identification portable device may further include a confirmation means for judging the relevance to the reference information by using information recorded in the recording means. As a result, the personal identification processing can be executed only with the personal identification portable device.

The personal identification portable device may further include communication means for outputting information recorded in the recording means and receiving information from outside. Since a means for actually performing personal identification can be provided outside, the personal identification portable device is simplified.

When the personal identification portable device includes communication means, the communication means may operate using at least one component of the measurement means. This reduces the amount of hardware of the personal identification portable device.

On the other hand, an identity verification device for confirming that the holder of the personal identification portable device is the genuine holder of the personal identification portable device includes communication means for communicating with the personal identification portable device, and personal identification device. Confirmation means for determining the relevance to the reference information by using the history information of the physical quantity in the vicinity of the personal identification portable device or added to the personal identification portable device received by the communication means from the personal identification device. . As a result, it is possible to perform identity verification without inputting a password or the like. However, even when the present apparatus is used, an input of a personal identification number or the like may be required. Also in this case, the accuracy of the personal identification can be improved by a combination of a simple personal identification portable object and a password. When the input of the personal identification number or the like is not required, the work for confirming the identity or the mental burden is reduced.

The personal identification system for performing personal identification using the personal identification portable device is a measuring means for measuring a physical quantity around the personal identification portable device or added to the personal identification portable device; It includes a recording unit that records information successively, and a confirmation unit that determines the relevance to the reference information by using the information on the physical quantity received from the recording unit. The personal identification system is a combination of the personal identification portable device and the personal identification device. Which means (excluding the measuring means) is provided in which device depends on the business to which the personal identification system is applied. .

The measuring means is an acceleration measuring means,
It is conceivable that the recording means records information on the walking pitch of the person carrying the personal identification portable device, which is obtained from the change in the acceleration measured by the acceleration measuring means.

Further, the measuring means is acceleration measuring means,
It is also conceivable that the recording means records information on the amplitude change of the acceleration measured by the acceleration measuring means. The relevance is that the person is or not.
In addition to the determination of the stage, it is also possible to obtain the similarity or the probability xx%.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A personal identification portable device, an identification device and an identification system according to an embodiment of the present invention will be described with reference to FIGS. The basic concept in the present embodiment is that the identity is confirmed using a change in a physical quantity or the like unique to a certain person that appears in daily life. For example, a person who lives a relatively regular life performs certain actions such as getting up, eating, commuting, going to school, going to bed, etc. at almost a fixed time every day. This pattern includes a pattern unique to the person. On the other hand, even for a person who does not live regularly, a relatively short-time action, such as a walking pitch, includes a pattern unique to the person. Further, a short-time action, for example, a change in acceleration in the vertical direction that appears during one step walking, shows a pattern peculiar to the person because the physical characteristics of the person also appear. In the present embodiment, a change in a physical quantity or the like in which a human action is reflected is measured by the personal identification portable device, and the measurement result is compared with pre-extracted reference information of the person to determine whether the person is the person. Is to judge.

Next, how to confirm the identity will be described with reference to FIG. A portion of FIG. 1A shows a genuine holder 2 carrying the personal identification portable device 1. The personal identification verification portable device 1 can record a unique pattern in the daily life of the authentic holder 2 by being carried by the authentic holder 2 who receives the personal identification.
In order to record a unique pattern in the daily life of the genuine holder 2, it is preferable that the genuine holder 2 carry the personal identification portable device 1 as much as possible. However, it may not be always possible to carry it, so it may be stored as necessary to prevent theft. The shape of the personal identification portable device 1 is such that the genuine holder 2 does not burden the genuine holder 2 for a long time, for example, a key holder-shaped small tag, card, watch, ring, bracelet, or the like. FIG. 1A illustrates a state in which the genuine holder 2 holds the personal identification portable device 1 in his hand, but this is an example, and it is not necessary to hold it in his hand, and he / she wears it. Of course, it is possible to put it in a pocket or the like of a garment.

In FIG. 1B, the authentic holder 2 carrying the personal identification portable device 1 comes to the installation location of the personal identification device 3 where the personal identification requester 7 is present, for identification. Shows a scene where In addition, the personal identification portable device 1
The communication means 4 between the communication device 4 and the personal identification device 3 is indicated by an arrow, but a device such as an IC card reader as well as a wireless device may be used as described later. In addition, the identity verification device 3
Is connected to another system 5 via a communication line 6 (which is a communication line but may be wireless). Examples of the other system 5 include a bank online system and a computer network server.

The personal identification portable device 1 and the personal identification device 3 exchange necessary information. Then, the personal identification device 3 performs the personal identification, and transmits the result of the personal identification to the other system 5 via the communication line 6. The other system 5 performs a predetermined process using the result of the identity verification.

The personal identification device 3 does not perform personal identification, the personal identification device 3 receives necessary information from the personal identification portable device 1, transmits the information to another system 5 via the communication line 6, and The system 5 of this embodiment may perform identity verification and execute a process determined using the result of the identity verification.

In some cases, the result of the personal identification is merely presented to the requester 7 without transmitting it to the other system 5. Further, the principal requester 7 may be absent. further,
It is also conceivable that another system 5 transmits the personal identification result to the personal identification device 3 and presents the personal identification result to the personal identification requester 7. In addition, the personal identification portable device 1 may have a means for confirming the identity (confirmation means). In this case, the result may be transmitted to the personal identification device 3 via the communication means 4 or, if the personal identification portable device 1 has a display device or the like, the personal identification portable device 1 may be transmitted to the personal identification requester 7. Can be simply presented.

The result of the personal identification is not limited to the result of the identity or the non-identity, but may also include information effective for the personal identification requester. For example, it is information indicating the degree of certainty, such as “the similarity to the reference information is xx%”, or the like, with which the person is determined to be the person or not. In addition, since a credit card that has been illegally used is often a card that has not been used for a long period of time, information such as “this card is infrequently used” can also be effective additional information.

Now, the personal identification portable device 1 will be described in more detail. The personal identification portable device 1 basically has a function of presenting who is the genuine holder of the personal identification portable device 1. Therefore,
In the personal identification portable device 1, information for identifying the individual is recorded by printing, magnetic recording, electronic memory, or the like. At least the ID number of the person is required, and the name, address, date of birth, and the like are recorded as necessary.

The personal identification portable device 1 has measuring means for measuring at least one of temperature, humidity, acceleration, air pressure, electromagnetic waves (including light), sound waves, and the like. This measuring means is for detecting a physical state around the personal identification portable device 1. In addition, the personal identification portable device 1 has recording means for recording the information measured by the measuring means over time. The term “sequential recording” refers to a case where time (time) and information measured by the measuring means are recorded as a pair, and a case where only information measured by the measuring means for periodic measurement is recorded in the order of measurement. Including both. Thus, the recording unit records the history (history information) of the physical quantity measured by the measurement unit. Note that a recording unit for recording the history information may be provided not only in the personal identification portable device 1 but also in the personal identification device 3 or in another system 5. The amount of data that can be recorded in the personal identification portable device 1 may not be so large in some cases. However, it is better that the personal history information serving as the basis of the reference information be large. Device 3
When is communicated via the communication means 4, the history information recorded on the personal identification portable device 1 may be taken into the personal identification device 3 and recorded. If it is determined that the user is not the identity in the identity verification, the data is not recorded in the identity verification device 3 and / or the other system 5 because the data is not the original data of the reference information.

The confirmation means for determining whether or not the person holding the personal identification portable device 1 is the genuine holder, that is, the person, uses the history information recorded in the recording means to make the determination. I do. This confirmation means is provided in the personal identification device 3, the other system 5, or the personal identification portable device 1, as described above. If the genuine holder, that is, the person holds and detaches the personal identification portable device 1, the history information such as temperature, humidity, acceleration, atmospheric pressure, electromagnetic wave (including light), or sound wave shows genuine possession. A unique pattern appears.
The verification unit outputs a personal verification result indicating that the user has been verified if the authenticity-specific pattern unique to the holder appears in the history information when the personal verification is performed. On the other hand, if a genuine holder-specific pattern does not appear in the history information, an identity verification result indicating that the identity has been verified is not output. The authentic holder-specific pattern is generated based on past patterns recorded in the history information.

If the holder of the personal identification portable device 1 is not a genuine holder, a pattern unique to the genuine holder does not appear in the history information recorded in the recording means, and a different pattern is recorded. I have. Therefore, the confirmation means can determine that the user is not the principal, and can prevent unauthorized enjoyment of the service or the like. When the confirmation means determines the relevance to the authentic holder-specific pattern, the similarity and the like are presented to the identity verification requester 7 to make the final determination of the identity verification requester 7. Can provide useful information.

Next, several embodiments of the personal identification portable device 1 will be described. FIG. 2 shows a card-shaped personal identification portable device 1.
An example is shown below. The card outer shape 8 and the external terminal 9 shown in FIG. 2 are, for example, J, which is a shape standard of a contact type IC card.
It conforms to a standard IC card specified in ISX6303 or the like. Inside the personal identification portable device 1, a normal I
In addition to the configuration of the C card, a sensor 10 and a sensor signal processing circuit 11 serving as measuring means are provided. The IC 12 below the external terminal 9 in the thickness direction includes a CPU and a memory. IC
The memory in 12 is the recording means described above. IC12
CPU controls processing for communicating with the personal identification device 3 and processing for successively recording a signal from the sensor signal processing circuit 11. That is, the CP in the IC 12
U executes software that performs at least a part of the functions of the communication unit and the recording unit. Since time needs to be measured, the IC 12 also has a clock function.

FIG. 3 shows an example of the personal identification portable device 1 in the form of a key ring. The overall outer dimensions are, for example, total length 20 mm to 70 mm, width 10 mm to 30 mm,
Those having a thickness of about 3 mm to 20 mm are suitable dimensions to be carried as a key ring. The sensor 10, the sensor signal processing circuit 11, and the IC 12 are the same as those in the card shape shown in FIG. On the other hand, an infrared transceiver 13 including a light emitting diode and a light receiving element is used as the communication means 4 for communicating with the personal identification device 3. Sensor 10
Is a sensor that detects light, the sensor 10 is omitted,
By sharing the light receiving element of the infrared transceiver 13 as a sensor, the number of components can be reduced.

Other examples of the shape of the personal identification portable device 1 include a wristwatch, a ring, and a bracelet. The sensor 10, the sensor signal processing circuit 11, and the IC 12 are common as components of the personal identification portable device 1. Although not shown, the personal identification portable device 1 has a built-in battery for supplying power to the sensor 10, the sensor signal processing circuit 11, and the IC 12.

An electric contact, an infrared transceiver, an electromagnetic induction communication mechanism or an electrostatic induction communication mechanism is used as a mechanism for fulfilling the function of the communication means 4 in the present invention.

The sensor 10 detects temperature, humidity, acceleration, air pressure, electromagnetic waves (including light) and sound waves, or a combination thereof. When the sensor 10 is a temperature sensor, for example, a sensor that operates in a range from −20 ° C. to + 40 ° C. is used. When the sensor 10 is a humidity sensor, a sensor that operates in a range of humidity of 30% to 100% is used. When the sensor 10 is an atmospheric pressure sensor, a sensor that operates in a range of, for example, about 700 hPa to 1200 hPa is used. As a barometric pressure sensor, a micro sensor manufactured by micromachine technology or the like is a personal identification portable device 1.
Suitable for.

When the sensor 10 is an acceleration sensor, one that operates in the range of, for example, about -1 G to 5 G is suitable for the present invention. The measurement direction may be any direction, but three directions intersecting at right angles to each other,
If the information can be measured in each direction, the amount of obtained information can be increased, and the accuracy of identity verification can be improved. When detecting information related to walking, which will be described later, an acceleration sensor that measures vertical acceleration is suitable. Considering that the personal identification portable device 1 is to be carried, a minute device manufactured by micromachine technology or the like is suitable.

When an acceleration sensor is used, the sensor signal processing circuit 11 performs processing such as generating a pulse in accordance with the walking pitch when a person walks, and the person holding the personal identification portable device 1 It is also conceivable to measure information about walking of the subject and use this as history information for recording in the recording means.

FIG. 4 shows an example in which the sensor 10 is an electromagnetic wave sensor. In the case of FIG. 4, the personal identification portable device 1 has a card shape. The electromagnetic wave sensor can be formed by forming the coil 15 along the outer frame 14 of the card by a printing technique. This electromagnetic wave sensor functions as a sensor by detecting and measuring an electromotive force induced at both ends of the coil 15 by electromagnetic induction of an external electromagnetic wave. Further, when an electromagnetic induction communication mechanism is adopted as a mechanism of the communication means 4, the coil 15 can be used as a coil for sharing a magnetic field with the personal identification device 3.
That is, the communication unit 4 and the measurement unit can share the components. Further, the electromagnetic wave sensor draws a line on a soft magnetic core (in the case of the card-shaped personal identification device 1, the core is embedded in the card such that the major axis direction of the core is parallel to the card surface). A coil configured by winding can be used. In this case, the device functions as an electromagnetic wave sensor by detecting and measuring an electromotive force generated at both ends of the coil by electromagnetic induction of an external electromagnetic wave. The intensity of the output signals of these electromagnetic wave sensors or other electromagnetic wave sensors is detected and measured by the sensor signal processing circuit 11 only for a specific frequency. As the specific frequency, for example, a power supply frequency (50 Hz and 60 Hz) is used. The power supply frequency is a frequency of an electromagnetic wave suitable for the present invention because it is easily detected anywhere in daily life. A radio broadcast frequency can be used as the specific frequency. Radio broadcast waves, especially medium-wave broadcasts, can be received over a wide area and are suitable for knowing the person's movement behavior. GPS
(Global Positioning System
m) If a radio wave can be received, positional information can be obtained thereby, the movement behavior in the field can be accurately recorded, and a more accurate identity verification can be performed.

When the sensor is an optical sensor, for example, a photodiode or a phototransistor is used. In any case, these sensors detect and measure a physical quantity that changes in the daily life of the person, and if the genuine holder, that is, the person carries the personal identification portable device 1, According to the pattern of the lifestyle, the living behavior, or the exercise / movement movement, the unique pattern that can be used to identify the individual can be recorded on the recording device.

Next, an example of the personal identification device 3 according to the present invention will be described with reference to FIG. The personal identification device 3 in FIG. 5 is a personal computer 16 generally used. The personal computer 16 is provided with an IC card reader 17 serving as the communication means 4.
The IC card reader 17 makes an electrical contact with an external terminal 19 of a card 18 as the personal identification portable device 1 and exchanges information between the card 18 and the personal computer 16 as the personal identification device 3 by an electric signal. I do.
When an infrared transceiver 20 is provided in the personal computer 16, information is exchanged with the infrared transceiver of the personal identification portable device 1 as shown in FIG. Although not shown, the personal identification portable device 1 is not shown.
Communication means 4 using an electromagnetic induction communication mechanism or an electrostatic induction communication mechanism.

By connecting the personal identification device 3 to another personal identification device 3 or a host computer through, for example, a communication network, the same personal identification can be performed using any personal identification device.

The personal identification device 3 is a personal identification portable device 1.
The recording means for long-term recording of the history information recorded in the recording means for the purpose of extracting more appropriate reference information may be held. As the recording means for long-term recording, a storage device of another computer to which the personal identification device 3 is connected via a network may be used.

In the case of the personal identification device 3 as shown in FIG.
The confirmation means is realized by software. FIG. 6 is a diagram showing an example of the configuration of the checking means. The confirmation means in FIG. 6 uses the pattern unique to the principal and the pattern in the history information recorded in the recording means at the time of the principal confirmation to determine the similarity calculated by the pattern similarity calculation as the principal confirmation result. .

Examples of the personal identification pattern include: the temperature around the personal identification portable device when the genuine holder is carrying the personal identification portable device 1 or the temperature of itself. When the personal identification portable device 1 is put in a pocket and is held together with a commuter pass, the temperature changes at the time of bidding and bidding when commuting to work in the morning and evening. Records of the temperature and / or humidity of the living room (around the personal identification portable device) when the genuine holder is returning home from evening to night. -If the genuine holder regularly flies,
Periodic generation of sub-atmospheric pressure. -If the genuine owner's residence is, for example, the fifth floor, the change in air pressure accompanying going out and going up and down when returning home. When the genuine holder commutes to school, the acceleration change indicating walking is at a specific time of day.・ Acceleration change due to walking of the genuine holder. -The electromagnetic wave pattern where the genuine holder turns around. -GPS positioning data of the genuine holder's turnover. The time when the genuine holder wore the personal identification portable device 1 as a badge. And so on.

Each of the examples is a phenomenon characterized by the genuine holder, that is, the person's daily life. In addition to these, a pattern unique to the user can be set.
Further, by concealing what is used in the pattern that characterizes the person, it is more difficult to impersonate the impersonator who brought the personal identification portable device 1, and to prevent unauthorized use of the personal identification portable device 1. The effect can be enhanced.

In the above example, an example of the confirmation procedure when the acceleration change due to walking is adopted as a pattern unique to the subject will be described. First, the personal unique pattern is an average walking pitch Pa obtained by measuring and recording the acceleration applied to the personal identification portable device 1 for one day or more.
[Step / minute] and the average of the vertical acceleration Aa [G]. FIG. 7 shows an example of a chart relating to the time change of the walking pitch. FIG. 7A shows the walking pitch of the genuine holder. Note that the dotted line represents the average walking pitch of the genuine holder. By recording such a temporal change of the walking pitch, an average walking pitch can be obtained. FIG. 8 shows a vertical acceleration change while the genuine holder walks one step. By performing such recording, the average acceleration can be obtained. Although the acceleration has positive and negative values depending on the direction, an absolute value can be used here.

At the time of personal identification, for example, the pitch P and the amplitude A of the acceleration, which are the history information recorded in the recording means,
Are compared for several hours before the current time. Then, for example, for the pitch P, the pitch P
The ratio whose value is within 10% compared to a
70% or more of the total number of steps compared, and the ratio of the amplitude A that is a difference within 20% compared to the amplitude Aa is 60% or more of the total number of steps compared,
It is assumed that the result of the identity verification is the identity.

For example, FIG. 7B shows the walking pitch of a person who brings the personal identification portable device 1 falsely as a genuine holder. The dotted line in FIG.
Has the same meaning as that of When FIG. 7 (B) is recorded in the recording means of the personal identification portable device 1, the above-mentioned criterion is not satisfied, so that the identification result is "not an identity".

In the above example, the history information for several hours is used retroactively from the current time. However, in order to prevent theft and unauthorized use from being performed in a very short time, for example, a history of several minutes is used. It is also conceivable to make a determination based on similar criteria using information. On the other hand, whether you walk fast or walk at normal speed,
Even if the user walks slowly, the change in acceleration during one step has substantially the same waveform. Therefore, in the history information of several minutes retroactively from the current time, the change in acceleration during one step of the true holder ( For example, it may be checked whether or not an acceleration change substantially different from that in FIG. 8) has occurred. In the above example, the reference numerical value indicating that the user is the principal can be adjusted based on the actual erroneous determination.

For other patterns unique to the person, similarity calculation as to whether the person is the person is performed by setting a certain reference.
In addition, the result of the identity verification is not a determination of whether the user is the identity or the identity of the user, but is a numerical value such as the probability of identity from the relevance and similarity with the reference information. Can also be presented.

It is also possible to change the requirements for identity verification by numerical values such as probabilities. For example, if the probability is high, no additional requirement is determined, but if the probability is less than or equal to a predetermined threshold, an additional input of a password or the like can be determined. Further, when the probability is equal to or less than a predetermined threshold value, it is possible to take measures such as not providing a predetermined service unless the personal identification is received again after one hour.
Further, when the response is made only with the personal identification device 3 and the probability is equal to or less than a predetermined threshold, measures such as requesting a visit to a counter or a staff member appearing are also effective in preventing fraud. It is.

For example, when it is conventionally required to bring a personal identification portable object and input a personal identification number or the like, a more effective personal identification is carried out only by bringing the personal identification portable device of the present invention. Will be able to do it. This allows
The burden on the user is reduced. If it is necessary to enter a personal identification number or the like and bring the personal identification portable device of the present invention,
Even if the number of input digits such as a personal identification number is reduced, identity verification can be performed with similar accuracy.

[0047]

As described above, it is possible to provide a device for improving the accuracy of personal identification in personal identification using a personal identification card such as a card. Further, it is possible to provide a device for reducing the work or mental burden for personal identification.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating how identity verification is performed in an embodiment of the present invention. Part A shows a genuine holder carrying the personal identification portable device 1, and part B shows a genuine holder bringing the personal identification portable device 1 to the installation location of the personal identification device 3. Is shown.

FIG. 2 is a diagram showing an example of a personal identification portable device 1 in the form of a card according to an embodiment of the present invention.

FIG. 3 is a view showing an example of the personal identification portable device 1 in the shape of a key ring in one embodiment of the present invention.

FIG. 4 is a diagram showing an example of the personal identification portable device 1 including the electromagnetic wave sensor according to one embodiment of the present invention.

FIG. 5 shows an identification device 3 according to an embodiment of the present invention.
It is a figure showing an example of.

FIG. 6 is a diagram illustrating a configuration of a confirmation unit according to an embodiment of the present invention.

FIG. 7 is a diagram showing a temporal change of a walking pitch. (A)
Shows the time change of the walking pitch of the genuine holder, and (B) shows the time change of the walking pitch of the unauthorized holder.

FIG. 8 is a diagram showing a change in acceleration while a genuine holder walks one step.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Personal identification portable device 2 Authentic holder 3 Identity verification device 4 Communication means 5 Other system 6 Communication line 7 Identity verification requester 8 Card outline 9 External terminal 10 Sensor 11 Sensor signal processing circuit 12 IC 13 Infrared transceiver 14 Card outer frame 15 Coil 16 Personal computer 17 IC card reader 18 Card 19 External terminal 20 Infrared transceiver

Claims (7)

[Claims] 1. A personal identification portable device, comprising: measuring means for measuring a physical quantity around the personal identification portable device or added to the personal identification portable device; and information on the measured physical quantity. Recording means for temporally recording; and a personal identification portable device comprising: 2. Using information recorded in said recording means,
The personal identification portable device according to claim 1, further comprising a confirmation unit configured to determine relevance to the reference information. 3. The information recorded in said recording means is output,
The personal identification portable device according to claim 1, further comprising a communication unit that receives information from outside, wherein the communication unit operates by using at least one component of the measurement unit. 4. An identity verification device for confirming whether a holder of the personal identification portable device is a genuine holder of the personal identification portable device, and a communication means for communicating with the personal identification portable device. The communication means received from the personal identification portable device,
A verification unit that determines the relevance to reference information using history information of physical quantities around the personal identification portable device or added to the personal identification portable device. 5. A personal identification system for performing personal identification using a personal identification portable device, comprising: measuring means for measuring a physical quantity around the personal identification portable device or added to the personal identification portable device. A recording means for successively recording information on the measured physical quantity; and a confirming means for judging relevance to reference information using information on the physical quantity received from the recording means. system. 6. The walking pitch of a person carrying the personal identification portable device, wherein the measuring device is an acceleration measuring device, and the recording device is obtained from a change in acceleration measured by the acceleration measuring device. The personal identification system according to claim 5, wherein the information is recorded. 7. The identity verification system according to claim 5, wherein said measurement means is acceleration measurement means, and said recording means records information on a change in amplitude of vertical acceleration measured by said acceleration measurement means. .