JP2015161981A - Control device, method of releasing function restriction, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the release of the restriction of a function with a releasing method that is hardly inferred by other people.SOLUTION: An electronic apparatus includes a detection unit (110) that detects the frequency of input operations to a display area for each of a plurality of subregions included in the display area, a determination unit (120) that determines a method of releasing the restriction of a function using the subregion on the basis of the frequency detected by the detection unit, and a function control unit (130) that releases the restriction of the function when an input operation according to the releasing method determined by the determination unit is performed while the function is restricted.

Description

  The present invention relates to a technique for releasing restrictions on functions of an electronic device.

  An electronic device may have a function for restricting a part of functions and operations and releasing the restriction. Such a function is also called a lock function / unlock function. For example, in Patent Document 1, in an information processing terminal that releases a lock by designating a predetermined locus (lock pattern) on the touch panel, the user changes the upper direction on the touch panel each time, so that the user can change the same position every time. It is described that there is no tracing.

JP2013-016115A

In the case of the technique described in Patent Document 1, the upward direction when the user operates changes, and as a result, the same position on the touch panel is not traced every time, but the lock pattern itself does not change. Therefore, there is still a possibility that the lock pattern itself is guessed by another person due to the fingerprint trace of the user.
An object of the present invention is to enable the function restriction to be released by a releasing method that is less likely to be guessed by others.

  In one aspect, the present invention provides a detection unit that detects the frequency of an input operation on a display region for each of a plurality of small regions included in the display region, and a function that is based on the frequency detected by the detection unit. When a determination unit that determines a release method using the small area of restriction and an input operation according to the release method determined by the determination unit when the function is restricted, the restriction of the function is restricted. A control device including a function control unit to be released is provided.

The cancellation method may be a method in which a user specifies an image displayed in a small area in which the frequency satisfies a predetermined condition among the plurality of small areas or a position of the image.
Further, the canceling method may be configured such that the image displayed in the small region whose frequency satisfies the predetermined condition is hidden, or the image corresponding to the image is displayed at another position. You may make a user specify the original display state.
The plurality of small regions may not have the same size or shape, and the input operation may include an input operation for designating a size or shape of the small region.
The determination unit may determine the release method so that the small region detected by the detection unit is used for the input operation.
Or the said determination part may determine the said cancellation | release method so that the said small area | region with a low frequency detected by the said detection part may be used for the said input operation.
Moreover, you may provide the alerting | reporting part which alert | reports the cancellation | release method determined by the said determination part, before the said function is restrict | limited.
The determination unit may change the release method at a predetermined timing in accordance with a change in the frequency for each small area detected by the detection unit.

  According to another aspect of the present invention, in another aspect, the frequency of an input operation with respect to a display area is detected for each of a plurality of small areas included in the display area, and the function restriction is reduced based on the detected frequency. Provided is a function restriction release method for determining a release method using an area and releasing the restriction of the function when an input operation is performed according to the determined release method when the function is restricted .

  Further, in yet another aspect, the present invention provides a computer based on the step of detecting the frequency of input operations on the display area for each of a plurality of small areas included in the display area, and the detected frequency. Determining a method for canceling function restriction using the small area, and releasing the function restriction when an input operation is performed according to the determined release method when the function is restricted A program for executing the steps is provided.

  According to the present invention, it is possible to release the function restriction by a releasing method that is less likely to be guessed by others than based on the frequency of input operations.

Block diagram showing hardware configuration of electronic device Figure showing an example of object display Figure showing another display example of the object The block diagram which shows the functional constitution regarding the unlocking function of the electronic equipment The flowchart which shows the process which determines the cancellation | release method of the restriction | limiting by a lock function Flow chart showing processing for releasing the lock function Figure illustrating lock screen Figure illustrating lock screen Figure illustrating lock screen Figure illustrating lock screen Figure illustrating lock screen Figure illustrating lock screen Figure illustrating lock screen Figure illustrating lock screen

[Example]
FIG. 1 is a block diagram showing a hardware configuration of an electronic device 10 according to an embodiment of the present invention. In the present embodiment, the electronic device 10 is a wireless communication terminal having a touch screen display, for example, a smartphone or a tablet computer. The electronic apparatus 10 includes a control unit 100, a storage unit 200, a communication unit 300, a touch screen unit 400, and an input unit 500. The electronic device 10 may be configured to include other components not shown, such as a speaker, a microphone, and a vibrator.

  The control unit 100 is means for controlling the operation of each unit of the electronic device 10. The control unit 100 includes an arithmetic processing device such as a CPU (Central Processing Unit) and an application processor, and a memory (main storage device), and controls the operation of each unit of the electronic device 10 by executing a program. Further, the control unit 100 realizes a lock function and an unlock function described later in cooperation with the touch screen unit 400.

  The storage unit 200 is means for storing data used in the electronic device 10. The storage unit 200 is configured by, for example, a flash memory or a hard disk. The storage unit 200 may include a reader / writer of a removable storage medium (removable medium) such as a memory card, and may exchange data with the storage medium. The storage unit 200 can store a program executed by the control unit 100 and data (image data, audio data, etc.) used when the program is executed. The storage unit 200 can also store an operation history described later.

  The communication unit 300 is means for transmitting / receiving data to / from an external device. The communication unit 300 performs communication via a network, for example. The network here is a mobile communication network, the Internet, a wireless LAN (Local Area Network), or the like. In this case, the communication unit 300 includes a baseband processor and an antenna, and transmits and receives data by performing modulation and demodulation according to a network to be communicated. Further, the communication unit 300 may include a configuration in which the communication unit 300 is directly connected to other electronic devices and peripheral devices (that is, not via a network) by NFC (Near Field Communication) or the like.

  The touch screen unit 400 is a means for displaying information and receiving user input operations. More specifically, the touch screen unit 400 includes a display unit 410 and a sensor unit 420. The display unit 410 includes a display panel including a liquid crystal element, an organic EL (electroluminescence) element, and the like and a driving circuit for the display panel, and displays an image corresponding to the image data supplied from the control unit 100. The sensor unit 420 includes a sensor that detects a user's input operation on the display area of the display unit 410 using a predetermined method (such as a resistance film method or a capacitance method), and inputs data indicating the user's input operation to the control unit 100. To supply. The input data here is, for example, data indicating a position (coordinates) on the display area.

  Note that the touch screen unit 400 is preferably compatible with multi-touch. That is, it is desirable that the touch screen unit 400 is configured to be able to accept operations such as “pinch-in” for bringing two fingers close and “pinch-out” for moving two fingers away.

  The input unit 500 is another means for receiving a user input operation. Unlike the touch screen unit 400, the input unit 500 includes a physical key. The input unit 500 supplies input data indicating the user's input operation to the control unit 100. An input operation on the input unit 500 is an operation of pressing a key. Therefore, the input data here is data indicating the pressed key.

  The hardware configuration of the electronic device 10 is as described above. Under this configuration, the electronic device 10 can display various images in the display area. The image displayed by the electronic device 10 includes an image arranged along a predetermined grid. In the following description, this image is particularly referred to as “object” to be distinguished from other images. The object here may be a window, an icon, or a so-called widget. The objects of this embodiment display information according to predetermined rules, and have different appearances so that the user can identify each. For example, each object displays different information such as news and weather forecast and updates the information at an appropriate timing.

  FIG. 2 is a diagram illustrating a display example of an object. In this example, 12 objects A to L are regularly arranged in 3 rows and 4 columns in the display area. The shape of the object is not particularly limited, and may be a rectangle or a circle. Further, the 3 × 4 display area does not have to have objects arranged in all of them, and there may be areas in which no objects are arranged. The display area shown in FIG. 2 may be the entire display area of the touch screen unit 400, or may be a part of the display area, and may be displayed together with other images not shown.

  FIG. 3 is a diagram illustrating another display example of the object. As shown in this example, the object sizes need not be the same. The object according to the present embodiment can have a size corresponding to one row and one column (hereinafter referred to as “1 × 1 size”) as a minimum unit and an integral multiple of the size. For example, in FIG. 3, the object A has a size corresponding to 1 row and 2 columns, and the object D has a size corresponding to 3 rows and 1 column. In the following, the size corresponding to m rows and n columns is referred to as “m × n size”.

  The user can select this object. The selection of the object is performed by a predetermined input operation on the object. For example, the user can select an object by tapping (lightly touching) the object. Note that the operation after selecting an object is not particularly limited, and may be different for each object.

  Further, the user can change the size of the object. For example, the user can increase the size by pinching out the object, and can decrease the size by pinching in the object. For example, when the user pinches out the object A in the horizontal direction in the display state shown in FIG. 2, the size of the object A can be changed as shown in FIG.

  Further, the electronic device 10 can use a lock function and an unlock function. Here, the lock function refers to restricting the use of at least a part of the functions available in the electronic device 10. The lock function may limit the acceptance of input operations so that the electronic device 10 housed in a bag or the like does not perform an unintended operation, and information that is not desired to be seen by others. The display may be restricted so that it cannot be browsed. Further, the unlock function is to release the function restriction by the lock function. The functions of the electronic device 10 restricted by the lock function may be determined in advance, but may be selected by the user as necessary.

  The unlock function of this embodiment is performed by using the arrangement of objects. Specifically, the unlock function of the present embodiment asks the user where an object frequently used by the user is displayed, and releases the lock function when the user correctly answers this. In order to realize such an unlock function, the electronic device 10 stores a history of input operations performed on the touch screen unit 400 by the user (hereinafter referred to as “operation history”), and a method for releasing the lock function based on the operation history. To decide.

  FIG. 4 is a block diagram illustrating a functional configuration related to the unlock function of the electronic device 10. The control unit 100 of the electronic device 10 implements a detection unit 110, a determination unit 120, a function control unit 130, and a notification unit 140 by executing a predetermined program. The unlock function may be realized by dedicated application software, or may be implemented in an OS (Operating System).

  The detection unit 110 is means for detecting an input operation on the touch screen unit 400. Specifically, the detection unit 110 is configured to divide a part or all of the display area of the touch screen unit 400 into a plurality of areas (small areas) and detect the frequency of input operations for each area. The The small area here corresponds to an area in which individual objects are displayed in this embodiment. That is, the detection unit 110 detects the frequency of input operations on individual objects in this embodiment. The input operation to be detected by the detection unit 110 is, for example, an operation of tapping an object, but is not necessarily limited to this.

  The detection unit 110 detects the frequency of input operations based on the operation history stored in the storage unit 200. The frequency here refers to the number of input operations in a certain period (for example, the latest one week). The operation history is data in which input operations performed by the user are recorded in time series. That is, the operation history is cumulatively recorded as to which object the user has tapped. The control unit 100 sequentially records user input operations in the storage unit 200. That is, the operation history is appropriately updated according to the user's operation.

  Note that the input operation to be detected by the detection unit 110 may be limited to an input operation when the lock function is not valid, that is, when the lock function is not locked. Further, the input operation that is to be detected by the detection unit 110 may be limited to an input operation when a specific screen (for example, a screen that displays the object illustrated in FIG. 2) is displayed.

  The determination unit 120 is a means for determining a release method for canceling the function restriction by the lock function. Based on the detection result (that is, the frequency of input operation for each object) by the detection unit 110, the determination unit 120 identifies an object that satisfies a predetermined condition as an object to be identified by the user at the time of cancellation, and releases the object. The release method to be used as a key is determined. There are a plurality of methods for releasing the lock function as will be described later. The release method actually applied may be selected from these by the user, or may be determined in advance by the electronic device 10.

  The function control unit 130 is means for controlling execution of the lock function and the unlock function. In other words, the function control unit 130 is means for controlling restriction and release of a predetermined function. The function control unit 130 enables the lock function when a predetermined condition is satisfied (for example, when the image display by the display unit 410 is turned off or when the user explicitly instructs). Moreover, the function control part 130 will cancel | release a lock function, if a predetermined input operation is received from a user in the state where the lock function is effective. The input operation for releasing the lock function is an input operation according to the release method determined by the determination unit 120.

  The notification unit 140 is a unit that notifies the user of the release method determined by the determination unit 120. The alerting | reporting part 140 alert | reports to a user by the audio | voice or an image the unlocking method of a lock function as needed. The notification unit 140 preferably notifies the release method in advance, that is, before the lock function is activated. For example, the notification unit 140 may notify the user of the release method immediately after the image display by the display unit 410 is turned off and immediately before the lock function is enabled. Note that the notification by the notification unit 140 is not indispensable and may be omitted by a user's prior setting or the like. Or whether the alerting | reporting part 140 performs alerting | reporting may be determined for every cancellation | release method.

  The notification method by the notification unit 140 is, for example, to display an image used for releasing the lock function in a form that can be distinguished from other images. Specifically, the electronic device 10 blinks an image used for releasing the lock function at a predetermined timing (for example, when a user requests notification) or displays the image in a color different from the previous one. The user can be notified of the image.

  FIG. 5 is a flowchart showing a process for determining a method for releasing the restriction by the lock function. Here, the control unit 100 reads and acquires the operation history for the object from the storage unit 200 (step SA1). The operation history read at this time may be the entire operation history up to that point, or may be a part (such as the latest one week).

  Next, the control unit 100 specifies an object used for releasing the lock function (step SA2). Specifically, the control unit 100 uses four objects selected at a high frequency here to release the lock function. The number of objects used for releasing the lock function is merely an example, and is not particularly limited. And the control part 100 determines the cancellation | release method used with the object specified in step SA2, and records this (step SA3).

  The control unit 100 repeatedly executes the process shown in FIG. This is because the operation history is updated each time the user performs an input operation, and therefore the frequency with which the user selects each object can also change. Based on the operation history at that time, the control unit 100 changes the release method at a predetermined timing (once a day, once a month, etc.) as necessary. It can be said that if the frequency of changing the release method increases, the safety increases, but there is also a disadvantage that it is difficult for the user to learn the release method. Therefore, it is desirable that the change timing of the release method be an interval that does not impair user convenience. Alternatively, the user may be able to set a desired change timing himself.

  FIG. 6 is a flowchart showing a process for releasing the lock function. As described above, the electronic device 10 enables the lock function at a predetermined timing such as the timing when the screen display of the display unit 410 is turned off. The control unit 100 executes the process shown in FIG. 6 in a state where the lock function is enabled in this way.

  First, the control unit 100 receives an input operation for turning on the screen display of the display unit 410 (step SB1). When receiving this input operation, the control unit 100 displays a screen for releasing the lock function (step SB2). This screen is hereinafter referred to as “lock screen”. For example, a message prompting a predetermined input operation for releasing the lock function is displayed on the lock screen. Also, the lock screen may differ depending on the method of releasing the lock function.

  When the lock screen is displayed, the function of the electronic device 10 is restricted. The functions restricted here can be used only after the user performs a predetermined input operation on the lock screen. The lock screen has a role of hiding information displayed when the lock function is not valid and preventing an unintended operation from being accepted.

  The control unit 100 determines whether or not a predetermined input operation has been performed with the lock screen displayed (step SB3). The control unit 100 determines whether or not the input operation determined by the process shown in FIG. 5 is performed, and releases the lock function when the input operation is performed (step SB4). Control unit 100 continues to display the lock screen until an input operation is performed, and repeats the determination in step SB3.

  7 to 14 are diagrams illustrating lock screens. These lock screens are different in display and input operation requested from the user, but in the original screen (that is, the screen before restriction by the lock function), each object has the arrangement shown in FIG. Assume that it was displayed. Here, it is assumed that the objects used for releasing the lock function are the objects “A”, “F”, “H”, and “K”. These objects are selected in the order of “A”, “F”, “H”, and “K” (A is the most frequent).

(First method)
FIG. 7 is a diagram illustrating a lock screen according to the first release method. The lock screen shown in FIG. 7 hides all of the plurality of objects displayed in FIG. 2 and displays frame lines corresponding to these objects. Here, the user can cancel the lock function by performing an input operation for specifying the position where the four frequently selected objects are displayed. That is, in this example, the user has objects A (first row and first column), F (second row and second column), H (second row and fourth column), K (third row and third column). Answer the position of. The user can release the lock function by performing an input operation of tapping positions corresponding to these objects on the lock screen, or an input operation of tracing (dragging) these positions in order.

  Note that the electronic device 10 may include the order of selecting objects as a criterion for cancellation. In this case, unless the user selects an object in the order of “A”, “F”, “H”, and “K”, the lock function cannot be released. In this way, it is possible to make it more difficult for a third party to infer the release method as compared to the case where the order of selecting objects is not questioned.

  8 and 9 are diagrams showing a modification of the first release method. In the example shown in FIG. 8, the above-mentioned four objects are designated in a state where the plurality of objects displayed in FIG. 2 are made translucent. Further, in the example shown in FIG. 9, a part of the plurality of objects displayed in FIG. 2 (for example, the one desired in advance by the user) is hidden, and the remaining objects are displayed in the above state. Four objects are designated. The first method may be performed in such a display state. However, it can be said that it is desirable to hide the object when there is a possibility that information that the user does not want to be disclosed to others is revealed by displaying the object.

(Second method)
FIG. 10 is a diagram illustrating a lock screen according to the second release method. The lock screen shown in FIG. 10 has a frame line similar to that in FIG. 7, and images corresponding to the four frequently selected objects are out of the frame, that is, at a position different from the position displayed in FIG. 2. Displayed in advance. When the user performs an input operation for specifying the original display state of these objects, the lock function can be released. The user can specify the positions of these objects, for example, by dragging and dropping objects outside the frame to predetermined positions within the frame.

  FIG. 11 is a diagram illustrating a display state when the lock function of the lock screen according to the second release method is released. The electronic device 10 releases the lock function when an input operation for dragging and dropping the images corresponding to the objects A, F, H, and K to the same position as the display state in FIG. Note that the electronic device 10 may include the order of selecting objects as a criterion for cancellation, as in the first cancellation method.

  Further, the image displayed at this time (that is, the image corresponding to the object) does not have to be the same as the displayed object, and may be any image that allows the user to conceive the identity with the object. . For example, if the object is a window or widget displayed by a certain application software, the electronic device 10 may display an icon representing the application software on the lock screen.

  FIG. 12 is a diagram illustrating a modification of the second release method. In the example shown in FIG. 12, 12 images corresponding to each of the objects displayed in the frame are displayed outside the frame. The user drags and drops the images corresponding to the four objects selected frequently among these images to predetermined positions in the frame. In this way, it is possible to make it more difficult for the third party to estimate the release method than the example shown in FIG. 10 because the object with the selected high frequency is not specified in advance.

(Third method)
FIG. 13 is a diagram illustrating a lock screen according to the third release method. The lock screen shown in FIG. 13 displays an image corresponding to each object in a different arrangement from the state shown in FIG. 2, that is, before the lock function is activated. In this state, the user can change the display position of the image by dragging and dropping the image corresponding to the object. For example, when the user drags and drops the image corresponding to the object E to the position where the image corresponding to the object A is displayed, the electronic device 10 changes the display position of these images.

  The user can release the lock function by moving the images corresponding to the four frequently selected objects among these images to the original display position. That is, in the case of the example in FIG. 13, the lock function can be released by moving the images corresponding to the objects A, F, H, and K to the display positions shown in FIG. For images corresponding to other objects, the release of the lock function is not affected even if the display position is moved.

  Note that the user does not always remember an object with a high selected frequency. For this reason, the electronic device 10 may indicate to the user the objects that are frequently selected, and allow the user to answer the arrangement. FIG. 14 is a diagram showing a lock screen in such a case. The lock screen shown in FIG. 14 is different from the lock screen shown in FIG. 13 in that the user is informed in advance of what objects are selected frequently, but the other points are common.

  That is, the electronic device 10 may cause the user to answer the selected object itself with a high frequency on the lock screen, or may cause the user to answer the arrangement (displayed position). You may make a user answer both.

  With the release method as described above, the user can reduce the possibility that the lock function is released by a malicious third party. In general, an object with a high selected frequency is a matter that only the user of the electronic device 10 can know. Therefore, when a third party unrelated to the user picks up the electronic device 10 or obtains it illegally, it is difficult for the third party to guess how to release the lock function. On the other hand, it is common for users themselves to place frequently used icons, etc. in a position where they can easily be operated, and because they often use them, they have often seen them and may remember them. high. Therefore, it can be said that the release method of the present embodiment is relatively easy for the user himself / herself to remember even without paying more attention than necessary.

  In addition, in the apparatus which has a touch screen display, the subject that the cancellation | release method will be guessed by the fingerprint and sebum adhering to the screen is also known as it describes also in patent document 1. FIG. The reason why such an estimation is facilitated is that if the input operation for releasing the lock function is frequently performed, only the fingerprint or sebum at that position becomes conspicuous. On the other hand, according to the present embodiment, even if the image corresponding to the object illustrated in FIG. 2 is displayed on the lock screen at the same position and the same size as the object, the position touched to release the lock function is usually This makes it difficult to discriminate between them because it coincides with the frequently touched position in the input operation (that is, the input operation when unlocked). . Further, if the position or size of the image corresponding to the object illustrated in FIG. 2 is displayed on the lock screen in a state different from that of the object, it is possible to make it difficult to estimate the object that is selected frequently.

[Modification]
The present invention is not limited to the embodiment described above, but can be implemented in other embodiments. The following is an example of another embodiment of the present invention. Note that these modifications can be appropriately combined as necessary.

(1) In the present invention, the object for which the frequency of the input operation is detected is not particularly limited. In addition, as described above, each object may not have the same size and shape. When the size and shape of the object are not the same, the electronic device 10 may use a release method that allows the user to specify the size and shape of the object that is frequently input. For example, the user can specify the size of the object by pinching out (pinching in) the image, or can specify the shape of the object by dragging to trace the outline of the image.

(2) The above-described object may be configured to display another object when selected (tapped) by the user. For example, when the object here is a window and the user selects it, the electronic device 10 may display a window other than the window or display a dialog box. In this case, the electronic device 10 may use the number of times another window or dialog box is displayed here or the display time thereof to determine the frequency of input operations on the window.

  The object here may be a so-called three-dimensional object, that is, a three-dimensional object displayed by three-dimensional computer graphics. For example, the object may have a polyhedral shape such as a cube. In this case, the electronic device 10 may be configured to accept an input operation for rotating the object and changing the surface displayed on the front surface. At this time, the electronic device 10 may use a release method that makes the user answer which surface of the object is displayed.

(3) The electronic device 10 may determine the release method so that the selected object with a low frequency is used for releasing the lock function. In the case where the input operation is to touch the touch screen, in this way, a position that is not often touched in a normal input operation can be touched when releasing the lock function. As a result, fingerprints and sebum are uniformly attached to the entire display area of the touch screen, compared to the case where this release method is not used, and it is possible to make it difficult to guess a specific input operation by a third party. .

(4) The input operation to be detected in the present invention is not limited to touching the touch screen as long as it can specify a specific position on the display area. For example, in the case of using an input device (that is, an input device that accepts a non-contact input operation) in which a specific position can be specified simply by bringing a finger or a stylus close to each other without touching the electronic device 10, The frequency of non-contact input operations may be detected. That is, the present invention is not limited to an input operation that touches the touch screen (that is, an input operation in which fingerprints or sebum adheres to the touch screen).

  In the present invention, the input operation for releasing the lock function is not limited to touching the touch screen. For example, when an input device such as a mouse can be used in the electronic device 10, the position of the object can be specified by this input device. Alternatively, the lock function can be released by so-called line-of-sight input or voice input.

(5) As described above, the input operation necessary for implementing the present invention is not limited to touching the touch screen. Therefore, the electronic device according to the present invention is not limited to one having a touch screen display. For example, the present invention can be applied to a wearable computer such as an HMD (Head Mounted Display), and the above-described line-of-sight input and voice input may be performed on the wearable computer.

  The electronic device according to the present invention may be a notebook (laptop) or desktop personal computer, a portable game machine or music player, an electronic book reader, or the like. The electronic device according to the present invention is not limited to a portable device, and is not limited to a device having a communication function.

(6) The present invention is not provided as an electronic device, but in the form of a control device for controlling the electronic device, a function restriction release method, a program for causing a computer (CPU or the like) to function as the control device, and the like. May be. Further, the program according to the present invention can be provided in a form recorded on a recording medium such as an optical disk, a form that can be downloaded to an electronic device via a network such as the Internet, and can be used by installing it. .

(7) The technical idea of the present invention can also be applied to a physical key (hardware key). That is, according to the present invention, in an electronic device using an input device having a plurality of keys such as a keyboard and a keypad, the frequency with which each key is pressed is detected, and a lock function release method is determined based on the detected frequency. Things can be included. The canceling method here corresponds to, for example, a so-called password.

  The control device according to this modification includes a detection unit that detects the frequency of input operations for a plurality of keys for each of the plurality of keys, and the key for limiting a certain function based on the frequency detected by the detection unit. A determination unit that determines a used release method, and a function control unit that releases the restriction of the function when an input operation is performed according to the release method determined by the determination unit when the function is restricted; Is provided.

  Further, the present invention may combine an input operation on the touch screen and an input operation on a physical key, and both of them may be used for releasing the lock function.

DESCRIPTION OF SYMBOLS 10 ... Electronic device 100 ... Control part 110 ... Detection part 120 ... Determination part 130 ... Function control part 140 ... Notification part 200 ... Storage part 300 ... Communication part 400 ... Touch screen part 410 ... Display Part, 420 ... sensor part, 500 ... input part

Claims (10)

A detection unit that detects the frequency of input operations on the display area for each of a plurality of small areas included in the display area;
A determination unit that determines a cancellation method using the small area of a certain function restriction based on the frequency detected by the detection unit;
A control device comprising: a function control unit that releases a restriction on the function when an input operation is performed according to the release method determined by the determination unit when the function is restricted. The control device according to claim 1, wherein the canceling method causes the user to specify an image displayed in a small region in which the frequency satisfies a predetermined condition among the plurality of small regions or a position of the image. . The cancellation method may be configured such that the image displayed in the small area whose frequency satisfies the predetermined condition is hidden, or the image corresponding to the image is displayed at another position, and the original image of the image is displayed. The control device according to claim 2, wherein the display state is specified by a user. The plurality of small regions are not identical in size or shape,
The control device according to any one of claims 1 to 3, wherein the input operation includes an input operation for designating a size or a shape of the small region. The control device according to any one of claims 1 to 4, wherein the determination unit determines the release method so that the small area detected by the detection unit is used for the input operation. The control device according to any one of claims 1 to 4, wherein the determination unit determines the release method so that the small region detected by the detection unit is used for the input operation. The control device according to claim 1, further comprising: a notification unit that notifies the release method determined by the determination unit before the function is limited. The control device according to claim 1, wherein the determination unit changes the release method at a predetermined timing in accordance with a change in frequency for each of the small regions detected by the detection unit. The frequency of input operations on the display area is detected for each of a plurality of small areas included in the display area,
Based on the detected frequency, determine a release method using the small area of a certain function restriction,
A function restriction release method for releasing the restriction of the function when an input operation according to the determined release method is performed when the function is restricted. On the computer,
Detecting the frequency of input operations on the display area for each of a plurality of small areas included in the display area;
Determining a release method using the small region of restriction of a function based on the detected frequency;
When the input operation according to the determined release method is performed when the function is restricted, the program for executing the step of releasing the restriction of the function.

Images