JP5580873B2 - Mobile terminal and unlocking method - Google Patents

Description

  The present invention relates to a portable terminal that performs unlocking using a touch panel, and a lock releasing method.

  In a conventional smartphone, the screen is generally locked in order to maintain security when there is no operation for a certain period of time or when returning from sleep. The method for unlocking the screen can be unlocked by a user defining in advance on the touch panel and performing an operation defined in the locked state. For example, Patent Document 1 describes that a lock release button is displayed on a touch panel.

JP 2011-198004 A

In the conventional touch panel input, there is a risk that the unlocking operation method may leak to a third party by seeing the operation method during the unlocking operation. In order to enhance security, it is conceivable to lengthen operations such as character input, but there is a problem that user input operations increase and convenience decreases.

  Therefore, an object of the present invention is to provide a mobile terminal and a lock release method that can release a locked state with a simple operation while improving security.

In order to solve the above-described problems, a portable terminal according to the present invention is a portable terminal in which a front surface touch panel is disposed on the front side of the apparatus and a rear surface touch panel is disposed on the rear surface thereof. A receiving unit that receives time difference information indicating a time difference from the touch operation a plurality of times; a storage unit that stores a maximum value and a minimum value as a lock release pattern among the plurality of time difference information received by the receiving unit; a detecting means for detecting a time difference between the touch operation on the back panel with a touch operation on said surface touch panel, shown with a time difference in the touch operation detected by the detecting means, the unlocking pattern stored in said storage means based on the difference in time, the lock solution Comprising a determining means for determining the propriety, the lock release is determined to be allowed by the determining means, and unlocking means for performing unlocking the.

Further, unlocking the method of the present invention, the surface touch panel disposed on the front side of the apparatus, the unlocking method of a portable terminal to place the rear surface touch panel on the rear surface, the touch operation on the back panel with a touch operation on said surface touch panel A reception step of accepting time difference information indicating a time difference with a plurality of times;
A registration step for storing a maximum value and a minimum value among a plurality of time difference information received in the reception step as a lock release pattern in a storage unit, and a touch operation on the front touch panel and a touch operation on the back touch panel at the time of unlocking Detecting step for determining whether or not unlocking is possible based on the touch operation detected by the detecting step and the time difference indicated by the unlocking pattern stored in the storage unit; A lock release step of releasing the lock when it is determined that the lock can be released in the determination step.

According to this invention, the unlocking pattern consisting of the touch operation on the front side touch panel and the back side touch panel on the front side of the apparatus is stored, and when unlocking, the touch operation on the front side touch panel and the touch operation on the back side touch panel are performed. To detect. Then, based on the detected touch operation and the time difference indicated by the stored unlocking pattern, it is determined whether or not unlocking is possible. When it is determined that unlocking is possible, unlocking is performed. Thereby, a high level of security can be realized with a simple operation using both the front and back touch panels. Furthermore, the lock release pattern can have a certain width, so that the security can be improved and the operability can be improved.

  In the mobile terminal of the present invention, the storage unit further stores a front surface touch position on the front surface touch panel and a back surface touch position on the rear surface touch panel as an unlock pattern, and the determination unit further includes a front surface touch position at the time of unlocking. Whether the lock can be released is determined based on the back surface touch position.

  According to the present invention, the front surface touch position on the front surface touch panel and the back surface touch position on the back surface touch panel are stored as an unlock pattern, and whether or not the lock can be unlocked is determined based on the front surface touch position and the back surface touch position. As a result, unlocking can be performed in consideration of the touch position as well as the time difference, and security can be further improved.

  In the mobile terminal of the present invention, the accepting unit further accepts time difference information, and accepts a front surface touch position and a back surface touch position, and the registration unit accepts the front surface touch position and the back surface touch received by the accepting unit. The position shift width is stored in the storage means as a lock release pattern.

  According to the present invention, in addition to the reception of time difference information, the front surface touch position and the rear surface touch position are received, and the shift width between the received front surface touch position and the rear surface touch position is stored as an unlock pattern, thereby improving security. In addition, the operability can be improved.

  In the mobile terminal of the present invention, the storage unit stores, as an unlock pattern, an unlock pattern including a touch track on the front surface touch panel and a touch track on the back surface touch panel, and the detection unit stores the touch track on the front surface touch panel. And a touch trajectory for the back touch panel, and the determination means determines whether or not the lock can be released based on the touch trajectory detected by the detection means and the unlock pattern stored in the storage means. .

  According to the present invention, a lock release pattern composed of a touch locus for the front surface touch panel and a touch locus for the back surface touch panel is stored as the unlock pattern, and the touch locus for the front surface touch panel and the touch locus for the back surface touch panel are detected and detected. Based on the touch trajectory and the stored unlock pattern, it is determined whether or not unlocking is possible. Thereby, a more complicated lock release pattern can be constructed and security can be improved.

  In the portable terminal of the present invention, a viewpoint detection unit that detects a viewpoint on the front surface of the user is arranged on the front side of the device as the input detection unit, and the storage unit is used as a viewpoint position on the front surface of the device. An unlocking pattern comprising an input operation position and a touch operation on the back touch panel is stored, and the detection means performs an operation position based on a viewpoint position on the front surface of the device and a touch operation on the back touch panel. And the determination means determines whether or not the lock can be released based on the operation position and touch operation detected by the detection means and the lock release pattern stored in the storage means.

  According to the present invention, an unlocking pattern including an operation position input as a viewpoint on the front surface of the apparatus and a touch operation on the rear touch panel is stored, and an operation input as a viewpoint on the front surface of the apparatus at the time of unlocking. A position and a touch operation on the back touch panel are detected. Then, based on the detected operation position and touch operation and the stored unlock pattern, it is determined whether or not the lock can be released. If it is determined that the lock can be released, the lock is released. Thereby, a high level of security can be realized by a simple operation using both the line-of-sight input and the back touch panel.

  According to the present invention, a high level of security can be realized by a simple operation using both the input detection means and the back touch panel.

It is a functional block diagram which shows the function of the portable terminal 100 which concerns on 1st Embodiment of this embodiment. 2 is a hardware configuration diagram of the mobile terminal 100. FIG. It is explanatory drawing which shows the registration method of the lock release pattern which consists of time difference information. It is a flowchart which shows the registration process of a lock release pattern. It is a flowchart which performs a lock release process. It is explanatory drawing when a touch locus | trajectory is used as a lock release pattern. It is a flowchart which shows a process when registering the unlocking pattern which is a touch locus | trajectory. It is a functional block diagram which shows the function of the portable terminal 200 which concerns on 2nd Embodiment of this embodiment. 2 is a hardware configuration diagram of a mobile terminal 200. FIG. It is explanatory drawing when a viewpoint locus | trajectory and a touch locus | trajectory are used as a lock release pattern. It is a functional block diagram which shows the function of the portable terminal 300 which concerns on 3rd Embodiment of this embodiment. It is a figure which shows an example of a data structure of the unlocking pattern registered by the portable terminal of FIG.

  Embodiments of the present invention will be described with reference to the accompanying drawings. Where possible, the same parts are denoted by the same reference numerals, and redundant description is omitted.

[First Embodiment]
FIG. 1 is a functional block diagram illustrating functions of the mobile terminal 100 according to the first embodiment of the present embodiment. As shown in FIG. 1, the portable terminal 100 includes a front touch panel display 101 (input detection means, detection means), a back touch panel 102 (detection means), an unlock pattern registration unit 103 (acceptance means, registration means), and unlock release. The pattern DB 104 (storage unit) and the lock release processing unit 105 (determination unit, lock release unit) are included. FIG. 2 is a hardware configuration diagram of the mobile terminal 100. As shown in FIG. 2, the portable terminal 100 shown in FIG. 1 physically includes a CPU 11, a RAM 12 and a ROM 13 that are main storage devices, an input device 14 such as a keyboard and a mouse that are input devices, and an output such as a display. The computer system includes a device 15, a communication module 16 that is a data transmission / reception device such as a network card, an auxiliary storage device 17 such as a semiconductor memory, and the like. Each function described in FIG. 1 has an input device 14, an output device 15, and a communication module 16 under the control of the CPU 11 by reading predetermined computer software on hardware such as the CPU 11 and the RAM 12 shown in FIG. 2. This is realized by reading and writing data in the RAM 12 and the auxiliary storage device 17. Hereinafter, each functional block will be described based on the functional blocks shown in FIG.

  The front touch panel display 101 is a part that is disposed on the front side of the apparatus and detects a touch position of a user's finger or the like (including a touch pen or the like) as an input operation. Furthermore, the front surface touch panel display 101 has a function as a display, and displays a registration screen for unlocking and a unlock screen. In addition, a menu screen or the like displaying a plurality of icons can be displayed.

  The back surface touch panel 102 is disposed on the opposite side where the front surface touch panel display 101 is disposed, and is a part for detecting a touch position of a user's finger or the like. The front surface touch panel display 101 and the back surface touch panel 102 are preferably in a mirror image relationship so that the same positional relationship can be taken. However, when only a time difference is used as the unlocking pattern, it is not necessary to have a mirror image relationship in particular. .

  The unlock pattern registration unit 103 is a part that stores in the unlock pattern DB 104 a unlock pattern for canceling the locked state, which includes operations on the front touch panel display 101 and the back touch panel 102. The unlock pattern registration unit 103 generates an unlock pattern indicating a time difference when the touch is made based on the touch position on the front touch panel display 101 and the touch position on the back touch panel 102, and generates the unlock pattern DB 104. Remember me.

  Here, a method for registering the unlock pattern will be described. FIG. 3 is an explanatory diagram showing a method for registering a lock release pattern. As shown in FIGS. 3A to 3C, in this embodiment, the touch operation is performed three times for generating the unlock pattern, and the unlock pattern is generated based on these operations. For example, in FIG. 3A, coordinates (100, 50) are input as the touch position on the front surface touch panel display 101. After 0.7 seconds, coordinates (60, 50) are input as touch positions on the back touch panel 102 and acquired by the unlock pattern registration unit 103.

  Similarly, also in FIGS. 3B and 3C, the unlock pattern registration unit 103 acquires the touch position of the front touch panel display 101, the touch position of the back touch panel 102, and time difference information thereof. Based on these pieces of information, the unlock pattern is generated by the unlock pattern registration unit 103. The generated unlocking pattern is stored in the unlocking pattern DB 104 as shown in FIG. 3D, the touch position on the front touch panel display 101 has a width of coordinates (100, 45) to (110, 65), and the touch position on the back touch panel 102 has coordinates (50, 50) to ( 60, 55), and the input time difference information has a width of 0.7 to 1.1 seconds. By providing these widths, a certain amount of input deviation is allowed. In this embodiment, the maximum value and the minimum value of the time difference and the maximum value and the minimum value of the position information are respectively used as the unlock pattern.

  The unlock registration unit 103 adds and subtracts a predetermined error value to the time difference information and the position information in order to give the time difference information and the position information a predetermined width based on one registration process. A value obtained by giving a width corresponding to a predetermined ratio (for example, a width of ± 10%) for the time difference information may be used as the unlock pattern. For example, if the time difference is 1 second, 0.9 to 1.1 seconds are registered in the unlock pattern DB104. Similarly, the position information may be a lock release pattern with an error tolerance of ± 10% for the absolute position. For example, when the coordinates (100, 50) are set, the error tolerance range of ± 10% may be a lock release pattern in a rectangular area connecting the coordinates (90, 40) to the coordinates (110, 60) with diagonal lines. .

  Further, when the front touch panel display 101 and the rear touch panel 102 are arranged in the same size and at the same opposing position as the unlock pattern, the relative position of the touch positions is not the absolute position but the unlock pattern. Also good.

  The unlock processing unit 105 is a part that performs unlocking based on a touch operation on the front touch panel display 101 and a touch operation on the back touch panel 102. More specifically, the unlock processing unit 105 refers to the unlock pattern DB 104 based on these touch operations, and the touch operation matches the unlock pattern or is included in the unlock pattern range. , It is a part for performing the unlocking process.

  In this way, the mobile terminal 100 can release the lock state based on the touch operation on the front touch panel display 101 and the back touch panel 102. As a premise, the portable terminal 100 is in a locked state in which input from the front surface touch panel display 101 and the back surface touch panel 102 cannot be accepted unless a touch operation is performed for a predetermined time. For example, it is assumed that a predetermined operation such as pressing of a lock state shift switch is performed to shift to the lock state.

  Next, a method for registering an unlock pattern in the mobile terminal 100 according to the present embodiment will be described. FIG. 4 is a flowchart showing the unlocking pattern registration process. First, an unlock pattern registration screen is displayed on the front touch panel display 101 by the unlock pattern registration unit 103 (S101). Next, the user performs a touch operation for unlocking pattern registration on the front touch panel display 101 and the back touch panel 102, and the unlocking pattern registration unit 103 performs the operation accepting process (S102).

  In the present embodiment, the touch operation acceptance process for registering the unlock pattern is performed a total of three times (S103, S104). Note that the number of times is not limited to three, and may be smaller or larger.

  Then, the unlock pattern registration unit 103 generates an unlock pattern, and the generated unlock pattern is stored in the unlock pattern DB 104 (S106).

  Next, processing for unlocking based on the unlock pattern stored in this way will be described. FIG. 5 is a flowchart for performing the unlocking process.

  When a predetermined time elapses after the touch operation or a lock state is instructed, the portable terminal 100 enters a lock state (S201). When the user wants to unlock, a screen for unlocking is displayed by user operation. In the release screen, a touch operation for a release operation is performed on the front touch panel display 101 and the back touch panel 102, and the touch operation is accepted (S202).

  Then, the unlock processing unit 105 performs a collation process between the accepted touch operation and the unlock pattern stored in the unlock pattern DB 104 (S203). When the unlock operation unit 105 determines that the touch operation matches the unlock pattern (or is included in the range indicated by the unlock pattern) (S204), the unlock is performed. The processing unit 105 releases the lock (S205). If the touch operation and the unlock pattern do not match (or are not included in the range of the unlock pattern), when the unlock processing unit 105 determines (S204), the unlock processing unit 105 The lock is not released (S205).

  In this way, unlocking based on the unlocking pattern using the time difference information can be performed.

  The above-described unlock pattern uses time difference information, but is not limited to this. The unlock pattern may use a touch locus.

  FIG. 6 is an explanatory diagram when a touch locus is used as the unlock pattern. As shown in FIG. 6A, a 3 × 3 object is displayed on the front touch panel display, and the user uses the front touch panel display 101 and the rear touch panel 102 to trace over this object. Thus, a predetermined unlock pattern can be input. In this example, the operability is better when the front touch panel display 101 and the back touch panel 102 have the same size and are in a mirror image relationship. In addition, the operability is improved if the front touch panel display 101 and the back touch panel 102 and the members of the present apparatus between them are transparent so that the touch state from the back touch panel 102 can be understood. Further, the matrix of objects is not limited to 3 × 3, and may be increased.

  The registration method will be described in detail. The unlock pattern registration unit 103 displays a 3 × 3 object on the front touch panel display 101. As shown in FIG. 6A, numbers “1” to “9” are assigned to the objects. In this example, the user traces the objects from the front touch panel display 101 in the order of “1” → “4” → “7” (reference numerals x1 and x2), and then “7” → “8” from the rear touch panel 102. The objects are traced in the order (reference x3), the objects are traced from the front touch panel display 101 in the order of “8” → “5” (reference x4), and finally the objects are traced from the rear touch panel 102 in the order of “5” → “9”. Tracing (symbol x5). In FIG. 6A, the input from the front touch panel display 101 is indicated by a solid line, and the input from the back touch panel 102 is indicated by a dotted line.

  By such a registration operation by the user, the unlock pattern shown in FIG. 6B is stored in the unlock pattern DB 104. Here, codes x1 to x5 are stored as trajectory numbers, and the object numbers of the start point and end point and the front and back types of the touch panel are stored in association with each other.

  This registration process will be described with reference to FIG. FIG. 7 is a flowchart showing a process for registering an unlock pattern. First, an unlock pattern registration screen is displayed on the front touch panel display 101 by the unlock pattern registration unit 103 (S301). The user performs an unlocking pattern input operation using the front touch panel display 101 and the back touch panel 102 according to the unlock pattern registration screen, and the input operation is accepted on the front touch panel display 101 and the back touch panel 102 (S302). . Then, the unlock pattern registration unit 103 stores the unlock pattern in the unlock pattern DB 104 (S303). Note that the input operation for the unlock pattern is determined to end when the finger does not move for a predetermined time or when the finger is removed, and the unlock pattern is stored at that timing.

  In this way, an unlock pattern can be input using the front surface touch panel display 101 and the back surface touch panel 102, and unlock processing with higher security can be realized.

  Next, functions and effects of the mobile terminal 100 of the present embodiment will be described. The unlock pattern DB 104 stores an unlock pattern including a touch operation on the front touch panel display 101 and a touch operation on the back touch panel 102.

  And the front surface touch panel display 101 and the back surface touch panel 102 detect touch operation with respect to each at the time of lock release. Based on the detected touch operation and the unlocking pattern stored in the unlocking pattern DB 104, the unlocking processing unit 105 determines whether or not the unlocking is possible and determines that the unlocking is possible. , Unlock. Thereby, a high level of security can be realized with a simple operation using both the front and back touch panels.

  For example, as the unlock pattern, the unlock pattern DB 104 stores time difference information indicating a time difference between the touch operation on the front touch panel display 101 and the touch operation on the back touch panel 102, and the unlock processing unit 105 performs the touch operation on the front touch panel. And a touch operation on the back touch panel are detected, and whether or not the lock can be released is determined based on the detected time difference and the time difference indicated in the unlock pattern stored in the storage unit. As a result, a high level of security can be realized with a simple operation using both the front and back touch panels.

  Further, according to the mobile terminal 100 of the present embodiment, the unlock pattern DB 104 further stores the front surface touch position on the front surface touch panel and the back surface touch position on the rear surface touch panel as an unlock pattern, and the unlock processing unit 105 further includes the front surface touch position. Based on the touch position and the back surface touch position, it is determined whether or not the lock can be released. As a result, unlocking can be performed in consideration of the touch position as well as the time difference, and security can be further improved.

  Further, according to the mobile terminal 100 of the present embodiment, the unlock pattern registration unit 103 receives the time difference information a plurality of times by touch operations from the front surface touch panel display 101 and the back surface touch panel 102, and the received plurality of time differences. Among them, the maximum value and the minimum value can be stored in the unlock pattern DB 104 as unlock patterns. As a result, the lock release pattern can have a certain width, and the security can be enhanced and the operability can be improved.

  In addition, according to the mobile terminal 100 of the present embodiment, the unlock pattern registration unit 103 further receives the time difference information and the front surface touch position and the back surface touch position, and the received deviation of the front surface touch position and the back surface touch position. By storing the width as an unlock pattern in the unlock pattern DB 104, it is possible to enhance security and improve operability.

  Further, according to the mobile terminal 100 of the present embodiment, the unlock pattern DB 104 stores an unlock pattern including a touch locus on the front touch panel display 101 and a touch locus on the back touch panel 102 as an unlock pattern. Then, a touch trajectory for the front touch panel display 101 and a touch trajectory for the back touch panel 102 are detected, respectively, and the unlock processing unit 105 performs unlocking based on the detected touch trajectory and the stored unlock pattern. Judgment is made. Thereby, a more complicated lock release pattern can be constructed and security can be improved.

[Second Embodiment]
FIG. 8 is a functional block diagram showing functions of the mobile terminal 200 according to the second embodiment of the present embodiment. As shown in FIG. 8, the difference in configuration of the mobile terminal 200 from the mobile terminal 100 according to the first embodiment is that the input detection means disposed at the end of the front surface touch panel display 101 on the front side of the apparatus. The viewpoint detection unit 201 (viewpoint detection means) is further provided. Further, the functional difference between the mobile terminal 200 and the mobile terminal 100 is that the contents of the unlock pattern stored in the unlock pattern DB 104 by the unlock pattern registration unit 103 and the unlock processing by the unlock processing unit 105 are as follows. Judgment logic.

  FIG. 9 is a hardware configuration diagram of the mobile terminal 200. As shown in FIG. 9, in addition to the components of the mobile terminal 100, the mobile terminal 200 includes a camera 18 that incorporates an image sensor such as a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS), and a light emission such as an LED. It further includes a lighting device 19 incorporating the element. The function of the viewpoint detection unit 201 shown in FIG. 8 is to operate the camera 18 and the illumination device 19 under the control of the CPU 11 by reading predetermined computer software on the hardware such as the CPU 11 and the RAM 12 shown in FIG. In addition, it is realized by reading and writing data in the RAM 12 and the auxiliary storage device 17.

  The viewpoint detection unit 201 acquires a face image of the user positioned facing the front touch panel display 101 disposed on the front side of the apparatus, and performs image processing on the face image to determine the viewpoint on the front touch panel display 101 of the user. To detect. Specifically, the viewpoint detection unit 201 irradiates the user with illumination light of a predetermined wavelength such as near infrared light toward the user by the illumination device 19 and simultaneously acquires the face image of the user irradiated with the illumination light by the camera 18. . The viewpoint detection unit 201 detects the viewpoint on the user's front touch panel display 101 based on the acquired face image. As this viewpoint detection method, it is known that a pupil position and a corneal reflection position are detected based on a face image, a user's gaze direction is detected from the detection result, and a viewpoint on the screen is detected based on the detected gaze direction. Technology is used.

  The unlock pattern registration unit 103 is a part that stores in the unlock pattern DB 104 a cancel pattern for canceling the lock state, which includes an operation on the viewpoint detection unit 201 and an operation on the back touch panel 102. The unlock pattern registration unit 103 generates an unlock pattern based on the operation position as the viewpoint on the front touch panel display 101 and the touch position on the back touch panel 102 input using the viewpoint detection unit 201, This is stored in the unlock pattern DB104.

  Here, a method for registering the unlock pattern will be described. FIG. 10 is an explanatory diagram showing a method for registering a lock release pattern. As shown in FIG. 10A, a 3 × 3 object is displayed on the front touch panel display, and the user uses the back touch panel 102 while following the object on the front touch panel display 101 with his eyes. By tracing over the object, a predetermined unlock pattern can be input. In this example, the operability is better when the front touch panel display 101 and the back touch panel 102 have the same size and are in a mirror image relationship. In addition, the operability is improved if the front touch panel display 101 and the back touch panel 102 and the members of the present apparatus between them are transparent so that the touch state from the back touch panel 102 can be understood. Further, the matrix of objects is not limited to 3 × 3, and may be increased.

  The registration method will be described in detail. The unlock pattern registration unit 103 displays a 3 × 3 object on the front touch panel display 101. As shown in FIG. 10A, numbers “1” to “9” are assigned to each object. In this example, the user moves the operation position by moving the viewpoint position between objects in the order of “1” → “4” → “7” on the front touch panel display 101 (reference numerals x11 and x12), and thereafter The object is traced from the rear touch panel 102 in the order of “7” → “8” (symbol x13), and the operation position is moved between the objects in the order of “8” → “5” on the front touch panel display 101 (symbol x14). The objects are traced from the rear touch panel 102 in the order of “5” → “9” (reference numeral x15). In FIG. 10A, the input operation on the front touch panel display 101 is indicated by a solid line, and the input from the back touch panel 102 is indicated by a dotted line.

  By such a registration operation by the user, the unlock pattern shown in FIG. 10B is stored in the unlock pattern DB 104. Here, as the unlock pattern, the trajectory number, the start and end object numbers corresponding to the input trajectory corresponding to the trajectory number, and whether the input trajectory is due to the trajectory of the viewpoint position on the front touch panel display 101, A trajectory type indicating whether or not a touch position trajectory on the back touch panel 102 is associated is stored.

  Note that the unlock pattern registration unit 103 is similar to the unlock pattern registration method illustrated in FIG. 3, and the operation position as the viewpoint on the front touch panel display 101 input using the viewpoint detection unit 201, An unlock pattern including a touch position on the back touch panel 102 and a time difference between operation and touch may be generated and stored in the unlock pattern DB 104.

  Further, the lock release processing unit 105 is a part that performs lock release based on the operation position as the viewpoint on the front touch panel display 101 and the touch operation on the back touch panel 102 input using the viewpoint detection unit 201. . Specifically, the lock release processing unit 105 refers to the lock release pattern DB 104 based on the operation position and the touch operation, and determines that the touch operation matches the lock release pattern. It is a part to do.

  According to the mobile terminal 200 of the present embodiment described above, an unlock pattern including an operation position input as a viewpoint and a touch operation on the back touch panel 102 is stored on the front surface of the device, An operation position input as a viewpoint on the front surface and a touch operation on the back touch panel 102 are detected. Then, based on the detected operation position and touch operation and the stored unlock pattern, it is determined whether or not the lock can be released. If it is determined that the lock can be released, the lock is released. Thereby, a high level of security can be realized by a simple operation using both the line-of-sight input and the back touch panel.

  In addition, this invention is not limited to embodiment mentioned above. For example, in the mobile terminal 100 described above, the unlocking is determined based on the touch positions of the front surface touch panel display 101 and the back surface touch panel 102, but other determination methods may be used.

  FIG. 11 is a functional block diagram showing functions of the mobile terminal 300 according to the modification of the present invention. As shown in FIG. 11, the difference in configuration of the mobile terminal 300 from the mobile terminal 100 according to the first embodiment is that a side input unit 301 (detection means) as input detection means arranged on the side of the apparatus. ). Specific examples of the side surface input unit 301 include a plurality of input keys such as a plurality of side keys arranged on the side surface. Further, the functional difference between the mobile terminal 300 and the mobile terminal 100 is that the contents of the unlock pattern stored in the unlock pattern DB 104 by the unlock pattern registration unit 103 and the unlock process by the unlock processor 105 are as follows. Judgment logic.

  Such registration of the unlock pattern by the mobile terminal 300 is executed in the same manner as the method shown in FIG. That is, the unlocking pattern registration unit 103 acquires the operation position of the plurality of keys of the side surface input unit 301, the touch position of the back touch panel 102, and the time difference information thereof, and the operation position, the touch position, and the time difference information Is generated and stored in the unlock pattern DB 104. More specifically, as shown in FIG. 12, the unlock pattern DB 104 includes position information indicating the operation position of the side surface input unit 301, coordinates of the touch position of the back touch panel 102 having a certain width, An unlock pattern including the input time difference information is stored. Similarly to the registration method illustrated in FIG. 6, information obtained by arranging the operation position of the side surface input unit 301 and the locus of the touch position of the back surface touch panel 102 in time series may be generated as a lock release pattern. The determination of the unlocking process by the portable terminal 300 is based on the detected operation position of the side input unit 301 and the touch operation on the back touch panel 102, and the operation position and touch operation are locked by referring to the unlock pattern DB104. This is done by determining whether it matches the release pattern or is included in the range of the lock release pattern.

  Even with such a portable terminal 300, a high level of security can be realized by a simple operation using both the side surface input unit and the back surface touch panel.

DESCRIPTION OF SYMBOLS 100,200,300 ... Portable terminal, 101 ... Front touch panel display, 102 ... Back touch panel, 103 ... Unlock pattern registration part, 104 ... Unlock pattern DB, 105 ... Unlock process part, 201 ... Viewpoint detection part, 301 ... Side input part.

Claims (7)

In a mobile terminal in which a front touch panel is placed on the front side of the device and a back touch panel is placed on the back side,
Receiving means for receiving time difference information indicating a time difference between the touch operation on the front touch panel and the touch operation on the back touch panel a plurality of times ;
Storage means for storing the maximum value and the minimum value among the plurality of time difference information received by the receiving means as an unlock pattern;
Detecting means for detecting a time difference between a touch operation on the front surface touch panel and a touch operation on the back surface touch panel when unlocking;
A determination unit that determines whether or not the lock can be released based on a time difference in the touch operation detected by the detection unit and a time difference indicated in the unlock pattern stored in the storage unit;
When the determination means determines that unlocking is possible, unlocking means for releasing the lock;
A mobile terminal comprising: The storage means further stores the front surface touch position on the front surface touch panel and the back surface touch position on the back surface touch panel as an unlock pattern,
The mobile terminal according to claim 1 , wherein the determination unit determines whether or not the lock can be released based on the front surface touch position and the back surface touch position when the lock is released. The accepting unit further accepts time difference information, accepts a front surface touch position and a back surface touch position,
The portable terminal according to claim 1 or 2 , wherein the storage unit further stores a shift width between the front surface touch position and the rear surface touch position received by the reception unit as a lock release pattern. The storage means further stores, as a lock release pattern, a lock release pattern consisting of a touch track on the front touch panel and a touch track on the back touch panel,
The detection means detects a touch locus for the front surface touch panel and a touch locus for the back surface touch panel,
The determination means according to claim wherein the time difference in the touch trace and the touch operation detected by the detecting means, based on the unlock pattern stored in the storage means, characterized in that to determine whether the unlocking The portable terminal as described in any one of 1-3 . In a mobile terminal in which a viewpoint detection unit that detects a viewpoint on the front surface of the user is disposed on the front side of the device, and a back surface touch panel is disposed on the back surface thereof,
Storage means for storing an unlock pattern including an operation position input as a viewpoint position on the front surface of the user on the front surface side of the apparatus and a touch operation on the back surface touch panel;
Detecting means for detecting an operation position based on a viewpoint position on the front surface of the device and a touch operation on the back surface touch panel when unlocking;
A determination unit that determines whether or not unlocking is possible based on the operation position and touch operation detected by the detection unit, and the unlocking pattern stored in the storage unit;
A portable terminal comprising: an unlocking unit that unlocks when the determining unit determines that the unlocking is possible. In the unlocking method of the mobile terminal in which the front surface touch panel is disposed on the front side of the device and the back surface touch panel is disposed on the back surface thereof,
A reception step of receiving a plurality of time difference information indicating a time difference between a touch operation on the front surface touch panel and a touch operation on the back surface touch panel;
A registration step of storing a maximum value and a minimum value among a plurality of time difference information received by the reception step in a storage unit as an unlock pattern;
A detection step of detecting a time difference between a touch operation on the front surface touch panel and a touch operation on the back surface touch panel when unlocking;
And time difference in the touch operation detected by the detecting step, on the basis of the time difference shown in unlock pattern stored in the storage unit, a determining step for determining whether it is possible to unlock,
When it is determined that the unlocking is possible in the determining step, the unlocking step for unlocking,
An unlocking method comprising: In the unlocking method of the mobile terminal in which the viewpoint detection means for detecting the viewpoint on the front surface of the user is disposed on the front surface side of the apparatus and the back surface touch panel is disposed on the back surface thereof,
  A storage step of storing in a storage unit an unlock pattern including an operation position input as a viewpoint position indicating a viewpoint detected by the viewpoint detection unit and a touch operation on the back surface touch panel;
  A detection step of detecting an operation position based on a viewpoint position on the front surface of the device and a touch operation on the back surface touch panel when unlocking;
  A determination step of determining whether or not unlocking is possible based on the operation position and touch operation detected in the detection step, and the unlocking pattern stored in the storage unit;
  An unlocking method comprising: an unlocking step of unlocking when it is determined in the determining step that unlocking is possible.

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