JP2016042630A - Terminal device, information processing device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease the possibility of a third person utilizing a terminal device while lightening a load on a user involved in authentication.SOLUTION: A wearing type terminal device 10 measures the displacement of an arm of a user and the height of its own position, and sends displacement data and height data to a wireless communication terminal device 20 when being paired with a wireless communication terminal device 20. The wireless communication terminal device 20 measures its own displacement and the height of its own position (S1-S7). The wireless communication terminal device 20 makes determination on whether or not the wireless communication terminal device 20 is displaced, according to the variation in position of the arm AR (S9). In the step S9, if the determination is "YES", the wireless communication terminal device 20 determines an inter-terminal device distance (S10). On condition that the inter-terminal device distance thus determined is a given distance or less (S11; YES), the wireless communication terminal device 20 changes its own terminal device function from a locked state to an unlocked state (S12).SELECTED DRAWING: Figure 5

Description

  The present invention relates to a technique for reducing the possibility of a terminal device being used by a third party.

  Technologies relating to user authentication in a terminal device such as a smartphone are disclosed in Patent Documents 1 and 2. Japanese Patent Application Laid-Open No. 2004-151858 discloses that acceleration when a user moves an electronic device is measured, a password is calculated based on a combination of acceleration direction and magnitude, and is used for user authentication. Patent Document 2 is a three-dimensional signature authentication system that performs authentication based on a signature action in the air, and is based on a finger trajectory obtained from a stereo camera and acceleration data of a finger action obtained from a three-dimensional acceleration sensor. To perform personal authentication.

JP 2007-179169 A JP 2009-9280 A

In the technique described in Patent Document 1, since authentication using a password is required, the user needs to remember the password, and the burden on inputting the password is forced. In the technique described in Patent Document 2, since personal authentication is performed based on a trajectory drawn by a user's finger, the user must remember the authentication trajectory and accurately reproduce it.
On the other hand, an object of the present invention is to reduce the possibility that the terminal device is used by a third party while reducing the burden on the user related to authentication.

  In order to solve the above-described problem, the terminal device of the present invention includes a wireless communication unit that performs wireless communication with an external terminal device that measures the displacement of the user's arm or hand, a measurement unit that measures the displacement of the terminal device, Based on the acquired displacement data indicating the measured displacement of the arm or hand, and the measured displacement of the terminal device and the acquired displacement data, the arm or hand in a certain period. When the operation determination unit that determines whether or not the own terminal device is displaced according to the displacement and the execution of the function provided to the user is restricted, the own terminal device corresponds to the displacement of the arm or hand And a function control unit that releases the restriction when it is determined that the displacement has occurred.

In the terminal device of the present invention, when it is determined that the own terminal device has been displaced according to the displacement of the arm or hand, comprising a distance specifying unit for specifying the distance between the own terminal device and the external terminal device,
When it is determined that the terminal device has been displaced in accordance with the displacement of the arm or hand, the function control unit may cancel the restriction when determining that the specified distance satisfies a predetermined condition. Good.
In the terminal device of the present invention, the measurement unit further measures the height of the position where the terminal device is present, and the acquisition unit further acquires data indicating the height of the position where the arm or hand is present. The operation determination unit determines whether the own terminal device is displaced according to the displacement of the arm or hand based on the height of the position where the own terminal device and the external terminal device exist during the period. Also good.

The terminal device according to the present invention further includes a state determination unit that determines whether the external terminal device is in a usable state, and the function control unit is determined not to be in the usable state after releasing the restriction. If this happens, the restriction may be started.
In this terminal device, the state determination unit may determine that the state is usable when the user's biological information is measured by the external terminal device.

In the terminal device of the present invention, when the function control unit determines that the own terminal device is displaced according to the displacement of the arm or hand, the displacement of the own terminal device measured after the period is a specific operation. When it is determined that the above is indicated, the restriction may be released.
In the terminal device according to the present invention, the function control unit may change the control related to the release according to the length of the period.

  The terminal device according to the present invention includes an authentication unit that receives a user input operation and determines the validity of the user, and the function control unit determines that the displacement indicated by the displacement data is valid by the authentication unit. When it is determined that the operation of the input operation to be determined is indicated, the restriction may be released regardless of the determination of the operation determination unit.

  An information processing apparatus according to the present invention acquires displacement data indicating displacement of a user's arm or hand of a first terminal device, and displacement data indicating displacement of a second terminal device that performs wireless communication with the first terminal device. An acquisition unit, an operation determination unit that determines whether or not the second terminal device is displaced according to the displacement of the arm or hand in a certain period based on each of the acquired displacement data, and the first A function of canceling the restriction when it is determined that the second terminal device is displaced according to the displacement of the arm or hand when the execution of the function provided to the user is restricted in the two-terminal device. And a control unit.

  The program of the present invention is measured by a computer of a terminal device including a wireless communication unit that performs wireless communication with an external terminal device that measures the displacement of the user's arm or hand, and a measurement unit that measures the displacement of the terminal device. Based on the step of acquiring displacement data indicating the displacement of the arm or hand, the measured displacement of the terminal device, and the acquired displacement data, according to the displacement of the arm or hand in a certain period. Determining whether or not the terminal device has been displaced, and determining that the terminal device has been displaced according to the displacement of the arm or hand when the execution of the function provided to the user is restricted. Sometimes, a program for executing the step of releasing the restriction.

  ADVANTAGE OF THE INVENTION According to this invention, possibility that a terminal device will be utilized by the third party can be made low, reducing the user's burden concerning authentication.

The figure which shows the external appearance structure of the wearable terminal and radio | wireless communication terminal which concern on one Embodiment of this invention. The block diagram which shows the hardware constitutions of the wearable terminal which concerns on the embodiment. The block diagram which shows the hardware constitutions of the radio | wireless communication terminal which concerns on the same embodiment. The block diagram which shows the function structure of the wearable terminal which concerns on the same embodiment. The sequence diagram which shows the operation | movement of an operation | movement when unlocking the radio | wireless communication terminal of this embodiment. Explanatory drawing of the specific example of the operation | movement of the arm which concerns on the embodiment, and a radio | wireless communication terminal, and the locked / unlocked state of a radio | wireless communication terminal. The sequence diagram which shows operation | movement when shifting the radio | wireless communication terminal of this embodiment to a locked state. The flowchart which shows the operation | movement at the time of the unlocking | locking of the function of the radio | wireless communication terminal which concerns on the modification 1 of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram illustrating an external configuration of the wearable terminal 10 and the wireless communication terminal 20 according to the present embodiment. The wearable terminal 10 and the wireless communication terminal 20 are used (carried) by the same user in this embodiment. The wearable terminal 10 is a wearable terminal device (wearable computer), and here is a wristband type terminal device (first terminal device). The wearable terminal 10 includes a mounting portion 10A that is mounted on a user's arm AR (the right forearm portion in FIG. 1). The mounting portion 10A is a belt-like member formed of a deformable material such as bending or twisting, and is wound around the arm AR. The wireless communication terminal 20 is a terminal device (second terminal device) that is held and used by a user, and is a smartphone here. The wireless communication terminal 20 may be a terminal device other than a smartphone, for example, a terminal device that is held and used by a user, such as a feature phone. The wearable terminal 10 and the wireless communication terminal 20 are wirelessly connected to each other and perform short-range wireless communication. Short-range wireless communication is wireless communication performed without going through a network such as the Internet.
In the present embodiment, the arm refers to a portion from the human shoulder to the wrist, and the hand refers to a portion from the wrist to the fingertip.

FIG. 2 is a block diagram illustrating a hardware configuration of the wearable terminal 10. As shown in FIG. 2, the wearable terminal 10 includes a control unit 11, an operation unit 12, a sensor unit 13, a short-range wireless communication unit 14, and a storage unit 15.
The control unit 11 includes a microcomputer that includes a central processing unit (CPU) as an arithmetic processing device, a read only memory (ROM), and a random access memory (RAM). The CPU controls each part of the wearable terminal 10 by reading the program stored in the ROM or the storage unit 15 into the RAM and executing it. The operation unit 12 is an operation unit that includes, for example, a physical key and is operated by a user.

The sensor unit 13 is a measurement unit that measures the state of the user of the wearable terminal 10. In the present embodiment, the sensor unit 13 includes an acceleration sensor 131, a gyro sensor 132, an atmospheric pressure sensor 133, and a biological sensor 134.
The acceleration sensor 131 is, for example, a three-axis type acceleration sensor, measures the acceleration acting on the wearable terminal 10, and outputs acceleration data. The gyro sensor 132 is, for example, a three-axis gyro sensor (angular velocity sensor), measures the angular velocity acting on the wearable terminal 10, and outputs angular velocity data. The acceleration data and the angular velocity data are data indicating the displacement of the arm AR of the user wearing the wearable terminal 10. Hereinafter, the acceleration data and the angular velocity data may be collectively referred to as “displacement data”.

  The atmospheric pressure sensor 133 measures the atmospheric pressure acting on the wearable terminal 10 and outputs atmospheric pressure data. The atmospheric pressure sensor 133 is a sensor for specifying the height of the position where the wearable terminal 10 is present. The biosensor 134 is a sensor that measures biometric information of a user wearing the wearable terminal 10. The biological sensor 134 detects an electrical signal (biological signal) flowing through the living body in order to measure biological information such as a pulse wave or an electrocardiographic waveform. In addition, the biological sensor 134 may include a sensor that measures the length of the arm AR to which the wearable terminal 10 is attached in the circumferential direction.

The short-range wireless communication unit 14 has, for example, a wireless communication circuit and an antenna, and is connected to an external device set as a communication partner (that is, paired), and is short-range compliant with Bluetooth (registered trademark) A wireless communication unit that performs wireless communication. The short-range wireless communication unit 14 may perform other types of short-range wireless communication such as wireless LAN (Local Area Network) communication based on Wi-Fi (registered trademark). The storage unit 15 is a storage device such as an EEPROM (Electronically Erasable and Programmable ROM) or a flash memory, and stores information such as a program executed by the control unit 11, for example.
The wearable terminal 10 includes a battery (for example, a secondary battery) for operating the wearable terminal 10 in addition to the configuration described above.

FIG. 3 is a block diagram illustrating a hardware configuration of the wireless communication terminal 20. As illustrated in FIG. 3, the wireless communication terminal 20 includes a control unit 21, a UI unit 22, a sensor unit 23, a short-range wireless communication unit 24, a storage unit 25, and a network communication unit 26. The control unit 21 and the short-range wireless communication unit 24 may have the same hardware configuration as the means (element) having the same name in the wearable terminal 10.
The control unit 21 controls each unit of the wireless communication terminal 20. The UI unit 22 is a display device that employs, for example, a touch screen, and includes a display unit that displays an image and a user interface that includes an operation unit that receives a user operation using the touch screen.

The sensor unit 23 is a measurement unit that measures the state of the wireless communication terminal 20. In the present embodiment, the sensor unit 23 includes an acceleration sensor 231, a gyro sensor 232, an atmospheric pressure sensor 233, and a brightness sensor 234. The acceleration sensor 231, the gyro sensor 232, and the atmospheric pressure sensor 233 may be the same as the sensors of the same name provided in the wearable terminal 10. The brightness sensor 234 is a sensor that measures illuminance, for example, and is provided to measure the brightness around the display unit of the UI unit 22.
The storage unit 25 is a storage device such as an EEPROM or a flash memory, and stores, for example, an OS (Operating System) executed by the control unit 21 and an authentication application 251 operating on the OS. The authentication application 251 is an application program for authenticating the validity of the user who uses the wireless communication terminal 20.
The network communication unit 26 includes, for example, a wireless communication circuit and an antenna, and is connected to a network (not shown) such as the Internet.
The wireless communication terminal 20 includes a battery (for example, a secondary battery) for operating the wireless communication terminal 20 in addition to the configuration described above.

FIG. 4 is a block diagram illustrating a functional configuration of the wireless communication terminal 20.
The control unit 21 of the wireless communication terminal 20 corresponds to the acquisition unit 211, the operation determination unit 212, the distance determination unit 213, the function control unit 214, and the state determination unit 215 by executing the authentication application 251. Realize the function. The authentication unit 216 is a function according to Modification Example 1 described later, and is not related to the present embodiment.
The acquisition unit 211 acquires displacement data indicating the displacement of the arm AR of the user wearing the wearable terminal 10 from the wearable terminal 10 via the short-range wireless communication unit 24. The displacement of the arm AR is substantially the same as the displacement of the wearable terminal 10 attached to the arm AR. In addition, the acquisition unit 211 acquires height data indicating the height of the position where the wearable terminal 10 exists from the wearable terminal 10 via the short-range wireless communication unit 24. The height data is generated based on the atmospheric pressure data output from the atmospheric pressure sensor 233 here, but may be atmospheric pressure data itself.

  The operation determination unit 212 determines the identity of the operation of the arm AR and the wireless communication terminal 20 (more specifically, the operation in the real space). Based on the displacement data acquired by the acquisition unit 211 and the displacement of the wireless communication terminal 20 measured by the sensor unit 13, the motion determination unit 212 is a wireless communication terminal according to the displacement of the arm AR in a certain period. It is determined whether 20 has been displaced. At this time, the motion determination unit 212 uses the height data to determine the wireless communication terminal 20 according to the displacement of the arm AR based on the height of the position where the arm AR and the wireless communication terminal 20 exist in the above-described period. Determine whether or not is displaced.

  The distance specifying unit 213 determines the distance between the wireless communication terminal 20 and the wearable terminal 10 (hereinafter referred to as “inter-terminal distance”) when it is determined that the wireless communication terminal 20 is displaced according to the displacement of the arm AR. Identify. The distance specifying unit 213 specifies the distance between terminals based on the strength of radio waves in the short-range wireless communication performed by the short-range wireless communication unit 24, for example. The inter-terminal distance may be specified by a value serving as an index of distance in addition to the distance itself between the wireless communication terminal 20 and the wearable terminal 10.

  The function control unit 214 controls whether or not the function provided to the user by the wireless communication terminal 20 can be executed. When the function control unit 214 restricts execution of the function and the operation determination unit 212 determines that the wireless communication terminal 20 is displaced according to the displacement of the arm AR, the function control unit 214 releases the restriction. At this time, the function control unit 214 determines that the distance between the terminals specified by the distance specifying unit 213 is a predetermined distance when the operation determining unit 212 determines that the wireless communication terminal 20 is displaced according to the displacement of the arm AR. When the condition is met, the restriction is lifted.

  The state determination unit 215 determines whether or not the wearable terminal 10 is available. The state determination unit 215 includes, for example, a state in which the biological information of the user is measured by the biological sensor 134, a state in which a legitimate user has logged in to the wearable terminal 10, or a state in which the remaining battery level for operation is ensured. The wearable terminal 10 is determined to be usable. The function control unit 214 starts the restriction when the state determination unit 215 determines that the function is not usable after the restriction on the execution of the function is released.

Next, the operation of this embodiment will be described.
<A: Operation when unlocking>
FIG. 5 is a sequence diagram illustrating an operation when the wireless communication terminal 20 is unlocked. FIG. 6 is a diagram for explaining a specific example of the operation of the arm AR and the wireless communication terminal 20 and the locked / unlocked state of the function of the wireless communication terminal 20. Prior to the following operation, it is assumed that the control unit 21 of the wireless communication terminal 20 is executing the authentication application 251. Moreover, before the following operation | movement, the control part 21 of the radio | wireless communication terminal 20 makes a self-terminal device a locked state. The locked state refers to a state where execution of a predetermined function other than the function related to user authentication is restricted (for example, prohibited) when the wireless communication terminal 20 is not used by a user. As shown in FIG. 6A, when the wireless communication terminal 20 is not in use, the control unit 21 locks the own device.

  When in the locked state, the control unit 21 of the wireless communication terminal 20 determines whether or not the presence of the external terminal device is detected via the short-range wireless communication unit 24 (step S1). Here, the control unit 21 searches for devices existing in the vicinity using a communication address (Bluetooth address) of an external terminal device registered in advance. When the control unit 21 searches for a device (step S1; YES), the device is notified (step S2). Here, when searching for the wearable terminal 10 that is close to the distance at which the short-range wireless communication can be performed, the control unit 21 sends a signal to that effect via the short-range wireless communication unit 24 to the wireless communication terminal. 20 to send.

  The control unit 11 of the wearable terminal 10 detects the presence of the wireless communication terminal 20 based on the notification received via the short-range wireless communication unit 14 (step S3). Then, the wearable terminal 10 and the wireless communication terminal 20 perform pairing by setting each other as a communication partner for short-range wireless communication (step S4). Here, the pairing may be performed by a general method in short-range wireless communication based on Bluetooth (registered trademark). At this time, as shown in FIG. 6 (b), it is assumed that the wearable terminal 10 is attached to the user's arm AR and the wireless communication terminal 20 is held by the user's right hand. At this time, the wearable terminal 10 and the wireless communication terminal 20 can perform short-range wireless communication, while the wireless communication terminal 20 remains in a locked state.

  When pairing is performed, the control unit 21 of the wireless communication terminal 20 repeatedly performs measurement by the sensor unit 23 (step S5B), and stores (accumulates) the displacement data and the height data in the storage unit 15 (step S6B). . Moreover, the control part 11 of the wearable terminal 10 repeatedly measures with the sensor part 23 (step S5A), and memorize | stores (accumulates) the displacement data and height data in the memory | storage part 15 (step S6A). The control unit 11 of the wearable terminal 10 transmits the displacement data and height data stored in the storage unit 15 to the wireless communication terminal 20 via the short-range wireless communication unit 14 (step S7). For example, the control unit 11 transmits displacement data and height data at predetermined intervals.

  The control unit 21 of the wireless communication terminal 20 acquires displacement data and height data via the short-range wireless communication unit 24 (step S8). Next, based on the displacement data and the height data, the control unit 21 determines whether or not the wireless communication terminal 20 is displaced according to the displacement of the arm AR in a certain period (step S9). First, the control unit 21 includes the displacement between the arm AR and the wireless communication terminal 20 within a predetermined similar range based on the displacement data indicating the displacement of the arm AR and the displacement data indicating the displacement of the wireless communication terminal 20. In addition, it is determined whether or not both have moved upward (that is, a direction having a vertically upward component). An algorithm for determining whether or not the displacement between the arm AR and the wireless communication terminal 20 is similar may be a known algorithm. Furthermore, the control unit 21 includes, based on the height data, the height of the position where the arm AR exists within a predetermined similar range with respect to the height of the position where the wireless communication terminal 20 exists (for example, Whether the distance is less than the threshold).

As shown in FIG. 6C, when the wearable terminal 10 is worn on the user's right arm AR and the wireless communication terminal 20 is held with the right hand, the displacement between the arm AR and the wireless communication terminal 20 Should be similar. Therefore, the user moves the wireless communication terminal 20 upward while wearing the wearable terminal 10, thereby determining “YES” in step S <b> 9.
If the wireless communication terminal 20 is gripped by the hand on which the wearable terminal 10 is not worn, or the wearable terminal 10 and the wireless communication terminal 20 are not used by the same user, The possibility that the displacement between the AR and the wireless communication terminal 20 is similar is low, and “NO” is determined in the step S9. When it determines with "NO" at step S9, the control part 21 complete | finishes the process shown in FIG. 5, keeping the radio | wireless communication terminal 20 in a locked state.

When it determines with "YES" at step S9, the control part 21 specifies the distance between terminals (step S10). And the control part 21 determines whether the distance between terminals is below a predetermined distance (step S11). This predetermined distance is set to a distance that is presumed that the wireless communication terminal 20 is held by the hand on which the wearable terminal 10 is worn.
When the wearable terminal 10 and the wireless communication terminal 20 have a positioning function such as a satellite positioning system (for example, a GPS system), the distance between the terminals may be specified based on the position information obtained by the positioning function. . When it determines with "NO" at step S11, the control part 21 complete | finishes the process shown in FIG. 5, keeping the radio | wireless communication terminal 20 in a locked state. In this case, since the wireless communication terminal 20 and the wearable terminal 10 may be used by different users even if pairing is performed, the control unit 21 maintains the wireless communication terminal 20 in the locked state.

  When it determines with "YES" at step S11, the control part 21 cancels | releases the locked state of the radio | wireless communication terminal 20, and makes it an unlocked state (step S12). As shown in FIG. 6D, when pairing is performed, it is determined that the wireless communication terminal 20 is displaced according to the displacement of the arm AR, and the distance between the terminals is determined to be equal to or less than the predetermined distance. In that case, there is a high possibility that the wireless communication terminal 20 and the wearable terminal 10 are held by the same user. Furthermore, the wearable terminal 10 is likely to be worn by a legitimate user due to the nature of being worn by the user. Therefore, when it is determined “YES” in step S11, there is a high possibility that the wireless communication terminal 20 is also held by a legitimate user. For this reason, the control part 21 cancels | releases a locked state by step S12. After releasing the locked state, the control unit 21 permits execution of the function released from the locked state.

<Operation when locked>
FIG. 7 is a sequence diagram showing an operation when the wireless communication terminal 20 is shifted to the locked state.
When in the unlocked state, the control unit 21 of the wireless communication terminal 20 first determines whether pairing with the wearable terminal 10 is continuing (step S21). When it is determined that the pairing is not continuing (step S21; NO), the control unit 21 shifts the wireless communication terminal 20 to the locked state (step S28). In this case, since it is estimated that the wireless communication terminal 20 does not exist near the legitimate user, the control unit 21 places the wireless communication terminal 20 in the locked state.

  When it determines with pairing continuing in step S21 (step S21; YES), the control part 21 specifies the distance between terminals (step S22). And the control part 21 determines whether the distance between terminals is below a predetermined distance (step S23). The control unit 21 may specify the inter-terminal distance by the same method as in step S10. When it is determined that the distance between the terminals is not equal to or less than the predetermined distance (step S23; NO), the control unit 21 shifts the wireless communication terminal 20 to the locked state (step S28). In this case, since it is estimated that the wireless communication terminal 20 does not exist near the legitimate user, the control unit 21 places the wireless communication terminal 20 in the locked state.

  When it determines with the distance between terminals being below a predetermined distance by step S23 (step S23; YES), the control part 21 determines whether the radio | wireless communication terminal 20 is operating (step S24). The algorithm for determining whether or not the wireless communication terminal 20 is in operation may be a known algorithm. For example, when the control unit 21 determines that the display unit of the UI unit 22 of the wireless communication terminal 20 is placed face down based on data measured by the acceleration sensor 231 and the brightness sensor 234, the control unit 21 is operating. Otherwise, it is determined that the operation is in progress. In addition, the control unit 21 may determine that an operation is being performed when the elapsed time since the operation to the UI unit 22 has been received is less than a predetermined time, and that the operation is not being performed otherwise. When it is determined that the controller 21 is not operating (step S24; NO), the control unit 21 shifts the wireless communication terminal 20 to the locked state (step S28). In this case, since the wireless communication terminal 20 is not used by a legitimate user, it is estimated that it is not necessary to keep the unlocked state.

  When it determines with "YES" by step S24, the control part 21 inquires whether the biometric information is measured with the biosensor 134 of the wearable terminal 10 via the short-distance wireless communication part 24 (step S25). When receiving the inquiry via the short-range wireless communication unit 14, the control unit 11 of the wearable terminal 10 responds to the wireless communication terminal 20 via the short-range wireless communication unit 14 as to whether the biological information is being measured. (Step S26). For example, when a biological signal is detected or when the user's arm length direction indicates a valid user, the biological information of the user of the wearable terminal 10 is measured.

And the control part 21 of the radio | wireless communication terminal 20 determines whether the wearable terminal 10 is in a usable state (step S27). When the wearable terminal 10 is worn on the user's arm AR and the biological information is being measured, the control unit 21 determines that the wearable terminal 10 is available (step S27; YES), and performs wireless communication. The terminal 20 remains in the unlocked state. On the other hand, when the biological information is not being measured, it is estimated that the wearable terminal 10 has been removed from the user's arm AR. In this case, the control unit 21 determines that the wearable terminal 10 is not in a usable state (step S27; NO), and shifts the wireless communication terminal 20 to the locked state (step S28).
Note that the processes in steps S25 to S27 are performed by the wearable terminal 10 based on whether a legitimate user has logged into the wearable terminal 10 or whether the remaining battery level for operation has been secured. It is good also as a process which determines whether it is in a possible state.

  According to the embodiment described above, the wireless communication terminal 20 is not only paired with the wearable terminal 10 in the locked state, but is further displaced according to the displacement of the arm AR. The lock state is released subject to. Thereby, the locked state is easily released on the condition that the wearable terminal 10 and the wireless communication terminal 20 are used by the same user. Furthermore, it can be determined more accurately that the wearable terminal 10 and the wireless communication terminal 20 are used by the same user because the inter-terminal distance is equal to or less than the predetermined distance as a condition for unlocking.

Further, even after unlocking, the wireless communication terminal 20 is locked based on the presence / absence of pairing, the distance between terminals, whether or not it is in operation, and whether or not the wearable terminal 10 is available. Switch to state or unlocked state. Therefore, even after the lock state is released, the wireless communication terminal 20 can quickly shift to the locked state when there is a possibility that the wireless communication terminal 20 is used by a third party.
Moreover, in this embodiment, the user does not need to be aware of input of authentication information such as password input, and the wearable terminal 10 worn by the user is released from the locked state of the function of the wireless communication terminal 20. The wireless communication terminal 20 can be used immediately after the wireless communication terminal 20 is held. This also reduces the burden associated with user authentication.

[Modification]
The present invention can be implemented in a form different from the above-described embodiment. The present invention can also be implemented in the following forms, for example. Further, the following modifications may be combined as appropriate.

(Modification 1)
The user may hold the wireless communication terminal 20 with a hand that is not the hand wearing the wearable terminal 10. Even in this case, the wireless communication terminal 20 may have a configuration described below so as to release the locked state when held by a legitimate user.
The control unit 21 of the wireless communication terminal 20 according to the present modification implements a function corresponding to the authentication unit 216 in addition to the function described with reference to FIG. The authentication unit 216 may be a function realized by the OS, for example. The authentication unit 216 receives an input operation by a user's contact via the UI unit 22 and determines the validity of the user. In this case, the authentication unit 216 determines, based on an operation of drawing a predetermined locus on the display unit of the UI unit 22, whether or not the locus drawn by the operation indicates a pre-registered locus. I do. When it is determined that the user's arm or hand displacement indicates an operation of an input operation that is determined by the authentication unit 216 to be a valid user when short-range wireless communication is performed, Regardless of the determination by the operation determination unit 212, the restriction is released.

FIG. 8 is a flowchart showing processing executed by the wireless communication terminal 20. The wireless communication terminal 20 executes the process of FIG. 8 in parallel with the process described with reference to FIG. The same processing steps as those in FIG. 5 are denoted by the same reference numerals.
When it is determined “NO” in step S9, the control unit 21 determines whether the displacement of the arm AR indicated by the displacement data acquired from the wearable terminal 10 indicates the operation of the input operation registered for pattern authentication. (Step S13). Pattern authentication is an authentication technique in which input points are displayed on a display surface, and a user performs an operation input by touching the input points in the order registered in advance. Therefore, when the control unit 21 determines that the displacement of the arm AR indicates the operation of the input operation registered in the pattern authentication (step S13; YES), the control unit 21 proceeds to step S10. And the control part 21 specifies the distance between terminals (step S10), and when it determines with the specified distance between terminals being below a predetermined distance (step S11; YES), a locked state is cancelled | released (step S12). ). On the other hand, when it determines with "NO" by step S13, the control part 21 remains in a locked state.
According to this modification, even when the wireless communication terminal 20 is gripped by the hand that is not the hand that wears the wearable terminal 10, the wearable terminal 10 is attached to the hand during pattern authentication. By performing it by hand, the locked state can be released. Since only a legitimate user can know the registered pattern for pattern authentication, there is a low possibility that the locked state is released by a third party.

(Modification 2)
In addition to determining “YES” in step S9, the wireless communication terminal 20 further determines that the displacement measured after the period when it is determined that the wireless communication terminal 20 is displaced in accordance with the displacement of the arm AR indicates a specific operation. The locked state may be released on condition that it is shown. This specific operation indicates a specific displacement pattern such as, for example, rotating the wireless communication terminal 20 or applying vibration. This specific operation is determined by a user-specific operation, for example. Thereby, even if it is a case where the wearable terminal 10 and the radio | wireless communication terminal 20 are used by the third party, possibility that a locked state will be cancelled | released becomes low.

(Modification 3)
The wireless communication terminal 20 may release the locked state of the function according to the length of the period in which it is determined that the wireless communication terminal 20 is displaced according to the displacement of the arm AR. For example, when the period during which the wireless communication terminal 20 is determined to be displaced according to the displacement of the arm AR is a first period length, the wireless communication terminal 20 has a function with relatively low confidentiality such as a response to an incoming call. The locked state is released, and if the second period length is longer than the first period length, the highly confidential file can be accessed, and if the third period length is longer than the second period length, all That is, the restriction is removed. As a result, a function with higher importance can be used as the reliability that the wireless communication terminal 20 is used by a legitimate user increases.

In addition, when the relationship between the length of the period in which it is determined that the wireless communication terminal 20 is displaced according to the displacement of the arm AR and the control for canceling the function is fixed, this relationship may be constant, but the control unit 21 May change (correct) this period. For example, the control unit 21 may shorten the period for releasing the restriction of a certain function as the elapsed time from when the restriction is released in the past (for example, the previous time) is shorter. This is because it is estimated that the possibility that the wearable terminal 10 and the wireless communication terminal 20 are used by a third party is relatively low if the elapsed time from the time when the restriction is made in the past is short.
Moreover, the control part 21 may change the period for canceling | releasing a restriction | limiting of a certain function according to the present time. For example, the control unit 21 determines the time when the user often uses the wireless communication terminal 20 from the usage history, and shortens the period as the frequency of usage increases.
Moreover, the control part 21 may change the period for canceling | releasing a certain function according to the position of an own apparatus. For example, the control unit 21 shortens the period of the place that is likely to be used by a legitimate user, such as the user's home or work place. This position may be preset by the user, or the frequency that the user visits may be specified from the positioning history, and the period may be shortened as the frequency increases.
In this modification, the example in which the length of the period in which the wireless communication terminal 20 is determined to be displaced according to the displacement of the arm AR is classified into three stages, but is classified into two stages or four or more stages. May be. Further, the specific control for releasing the function restriction is not limited to the above-described control.

(Modification 4)
In embodiment mentioned above, the radio | wireless communication terminal 20 was cancelled | released the locked state, when the own apparatus and the wearable terminal 10 moved to the upper direction. Based on the displacement data at this time, the wireless communication terminal 20 may correct a condition for determining that the wireless communication terminal 20 is displaced according to the displacement of the arm AR. In this embodiment, the correction of this condition is a process of changing the above similar range in which it is determined that the displacement between the arm AR and the wireless communication terminal 20 is similar. Thereby, the radio | wireless communication terminal 20 can avoid the use by others with more precision by employ | adopting the determination conditions reflecting a user's habit.

(Modification 5)
The limitation of the function of the present invention is not limited to that described in the above embodiment. For example, in the present invention, only a part of functions such as an electronic money function may be restricted, and functions such as responses to incoming calls may always be permitted to be executed.
In addition, since the wireless communication terminal 20 is likely to be held by the user after releasing the locked state, the wireless communication terminal 20 may set the operation of the own device to perform the operation according to the situation. Good. For example, even when the wireless communication terminal 20 performs notification when there is an incoming call by voice output, if it is estimated that the user is gripped after releasing the lock state, the vibration function Set to alert by.
Further, when the wireless communication terminal 20 and the wearable terminal 10 are set to notify the same information (for example, notification that there is an incoming call), the user is gripped by the user after releasing the lock state. When estimated, the wireless communication terminal 20 may notify the self-terminal device and stop the notification by the wearable terminal 10.
In this modification, when it is determined that the wireless communication terminal 20 has not been gripped, the wireless communication terminal 20 cancels the operation when the wireless communication terminal 20 is gripped. May be released gradually. The predetermined time may be fixed or may be changed by a user or the like.

(Modification 6)
Only during a period when it is determined that the wireless communication terminal 20 has been displaced according to the displacement of the arm AR, the wireless communication terminal 20 may execute a predetermined process other than unlocking. For example, when the wireless communication terminal 20 outputs an alarm sound, the wireless communication terminal 20 stops the alarm sound only when the wireless communication terminal 20 is turned over with the wearable terminal 10 worn on the arm AR. At this time, combining the user authentication of the wearable terminal 10, the wireless communication terminal 20 can perform a hold operation when an incoming call is received, an alarm stop, etc. only when the person or a specific user wears the wearable terminal 10. An operation may be performed.

(Modification 7)
The functions realized by the control unit 21 of the wireless communication terminal 20 described above may be realized by the control unit 11 of the wearable terminal 10 or an information processing device such as a server device connected to a network.
Moreover, it replaces with the restriction | limiting of execution of the function of the radio | wireless communication terminal 20, or execution of the function of the wearable terminal 10 may be restrict | limited. In this case, the restriction on the execution of the function of the wearable terminal 10 is canceled, for example, under the same condition as the restriction on the execution of the function of the wireless communication terminal 20 is canceled.

(Modification 8)
The terminal device for measuring the displacement of the user's arm or hand according to the present invention is not limited to the wristband type terminal device, but is worn on the user's arm or hand and used in another form of a wearable terminal device ( Wearable computer). An example of a terminal device worn on the wrist is a wristwatch type terminal device. As an example of the terminal device worn on the hand, there are a ring-type terminal device and a glove-type (glove-type) terminal device. The terminal device for measuring the displacement of the user's arm or hand according to the present invention may be a device that is mounted on clothing such as a T-shirt and configured to measure the displacement of the arm or hand.
In addition, the wireless communication terminal 20 may be a wearable terminal device instead of a terminal device that is held and used by a user. As with the wearable terminal 10, this wearable terminal device may be worn on the user's arm or hand, or may be worn on other parts of the body such as glasses. Good.

(Modification 9)
A part of the configuration or operation described in each embodiment described above may be omitted.
For example, one or more measurements of acceleration, angular velocity, and atmospheric pressure may be omitted. When the height measurement is omitted, the wireless communication terminal 20 determines whether the wireless communication terminal 20 is displaced according to the displacement of the arm AR based only on the displacement between the arm AR and the wireless communication terminal 20. May be. Also, some processes such as identification of the distance between terminals, measurement of biological information, and determination of whether or not an operation is in progress may be omitted. Further, the sensor for measuring the height is not limited to the atmospheric pressure sensor, and may be a geomagnetic sensor or the like.
Moreover, the order of the processes described in the above-described embodiments may be changed.

(Modification 10)
The function realized by the control unit 21 of the wireless communication terminal 20 according to the above-described embodiment can be realized by a combination of a plurality of programs, or can be realized by linking a plurality of hardware resources. When the function of the control unit 21 is realized using a program, the program includes a magnetic recording medium (magnetic tape, magnetic disk (HDD (Hard Disk Drive), FD (Flexible Disk)), etc.), optical recording medium (optical disk). Etc.), may be provided in a state stored in a computer-readable recording medium such as a magneto-optical recording medium or a semiconductor memory, or distributed via a network. In addition, the present invention may be realized using cloud computing. The present invention can also be grasped as an information processing method.

DESCRIPTION OF SYMBOLS 10 ... Wear-type terminal, 11, 21 ... Control part, 12 ... Operation part, 13, 23 ... Sensor part, 131, 231 ... Acceleration sensor, 132, 232 ... Angular velocity sensor, 133, 233 ... Barometric pressure sensor, 134 ... Biosensor , 20 ... wireless communication terminal, 211 ... acquisition unit, 212 ... operation determination unit, 213 ... distance identification unit, 214 ... function control unit, 215 ... state determination unit, 216 ... authentication unit, 234 ... brightness sensor, 14, 24 ... near field communication unit, 15, 25 ... storage unit, 22 ... UI unit, 16, 26 ... network communication unit

Claims (10)

A wireless communication unit that performs wireless communication with an external terminal device that measures the displacement of the user's arm or hand;
A measuring unit for measuring the displacement of the terminal device;
An acquisition unit for acquiring displacement data indicating the measured displacement of the arm or hand;
Based on the measured displacement of the terminal device and the obtained displacement data, an operation determination unit that determines whether the terminal device has been displaced according to the displacement of the arm or hand in a certain period;
A function control unit that cancels the restriction when it is determined that the terminal device is displaced according to the displacement of the arm or hand when the execution of the function provided to the user is restricted; apparatus. A distance identifying unit that identifies the distance between the terminal device and the external terminal device when it is determined that the terminal device is displaced according to the displacement of the arm or hand;
The function controller is
The restriction is released when it is determined that the specified distance satisfies a predetermined condition when it is determined that the terminal device is displaced according to the displacement of the arm or hand. The terminal device according to 1. The measuring unit is
Furthermore, measure the height of the position where the terminal device exists,
The acquisition unit
Further, obtain data indicating the height of the position where the arm or hand is present,
The operation determination unit
2. It is determined whether or not the terminal device is displaced according to the displacement of the arm or hand based on the height of the position where the terminal device and the external terminal device exist during the period. Or the terminal device of Claim 2. A state determination unit that determines whether the external terminal device is available;
The function controller is
The terminal device according to any one of claims 1 to 3, wherein the restriction is started when it is determined that the state is not available after the restriction is released. The state determination unit
The terminal device according to claim 4, wherein when the user's biological information is measured by the external terminal device, the state is determined as the usable state. The function controller is
When it is determined that the terminal device has been displaced in accordance with the displacement of the arm or hand, when it is determined that the displacement of the terminal device measured after the period indicates a specific action, the restriction is released. The terminal device according to any one of claims 1 to 5, wherein: The function controller is
The terminal device according to any one of claims 1 to 6, wherein the control related to the release is changed according to the length of the period. An authentication unit that accepts a user's input operation and determines the legitimacy of the user;
The function controller is
When it is determined that the displacement indicated by the displacement data indicates the operation of the input operation determined by the authentication unit as a valid user, the restriction is released regardless of the determination of the operation determination unit. The terminal device according to claim 1, wherein: An acquisition unit that acquires displacement data indicating displacement of the arm or hand of the user of the first terminal device, and displacement data indicating displacement of the second terminal device that performs wireless communication with the first terminal device;
An operation determination unit that determines whether or not the second terminal device is displaced in accordance with the displacement of the arm or hand in a certain period based on each of the obtained displacement data;
When execution of a function provided to the user is restricted in the second terminal device, the restriction is released when it is determined that the second terminal device is displaced according to the displacement of the arm or hand. An information processing apparatus comprising: a function control unit. A wireless communication unit that performs wireless communication with an external terminal device that measures the displacement of the user's arm or hand;
A computer of the terminal device comprising a measuring unit for measuring the displacement of the terminal device;
Obtaining displacement data indicating the measured displacement of the arm or hand;
Determining whether or not the terminal apparatus is displaced according to the displacement of the arm or hand in a certain period based on the measured displacement of the terminal apparatus and the acquired displacement data;
When the execution of the function provided to the user is restricted, and when it is determined that the terminal device has been displaced according to the displacement of the arm or hand, the program for executing the step of releasing the restriction .

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