KR20100062900A - Unlocking method using touch-screen and electric device thereof - Google Patents

Abstract

PURPOSE: An unlocking method using a touch screen and an electronic device thereof are provided to unlock a lock state by simple input through the touch screen, thereby reducing input errors. CONSTITUTION: A touch screen(10) receives input of authentication information from a user. If an external object contacts the touch screen, a controller(40) produces contact information about one among combinations of motions according the location, size, and contact state corresponding to at least one contact point and a motion pattern of the external object. The controller performs authentication to determine whether to unlock a locking state through comparison of a preset secret key and the contact information.

Description

Unlocking method using touch-screen and electric device

The present invention relates to a unlocking state, and more particularly, to a method of releasing a lock state using a touch screen and an electronic device using the method.

In general, the digital door lock is provided with a keypad of a button type or a touch screen for inputting a password on the outside of the door (ie, the outdoor side).

When the user sequentially enters a password using a push button (or touch screen) on the keypad to enter the room from the outside, the door lock is unlocked by reading whether the number entered by the embedded software matches the set password.

In addition to door locks, most electronic devices including display modules such as PDAs, mobile phones, and notebook computers are equipped with a locking function. Taking a mobile phone as an example, a user may set a lock state to prevent others from using his or her mobile phone. In this case, the user may use a function such as a phone call or a message transmission after releasing the lock state by inputting a password. Likewise, in the case of the electronic device, a lock is input by inputting a password through a keypad or a touch screen.

Passwords usually consist of 4 to 10 digits. That is, it means that the button corresponding to the number should be pressed 4 to 10 times or more. For example, if the password is 258909, the user must perform a total of six button inputs to unlock the lock. As a large number of inputs have to be performed, an error in input often occurs, and a user may feel uncomfortable. Also, because passwords are made up of a number of numbers, sometimes you accidentally forget that number combination and can't unlock it.

In the case of the door lock device, a digital door lock has also been recently released to unlock a door when a touch key is brought to a sensor provided in addition to a password input. Therefore, the user can open and close the door by simply bringing a touch key carried by the user near the sensor provided at one outside of the door lock device without inputting a separate password. In this case, however, there is an inconvenience in that the touch key should always be carried, and in order to open the door, it is still inconvenient to use the touch key in the pocket or bag.

Accordingly, an object of the present invention is to provide a method for releasing a locked state using a touch screen and an electronic device using the method, which are devised to solve the above-described problem, and which can release a locked state without using a password.

In another aspect, the present invention is to provide a door lock device using a touch screen that can open and close the door by a simple input without having to provide a separate key.

Other objects of the present invention will become more apparent through the preferred embodiments described below.

According to an aspect of the invention, the touch screen for receiving information for authentication from the user; And calculating contact information for any one of a position, an area, a movement pattern formed by moving in a contact state, and a combination thereof, corresponding to one or more contact points when an external object is in contact with the touch screen once. By comparing a secret key with the contact information, an electronic device including a control unit for processing authentication for determining whether to release a locked state is provided.

Here, the control unit may calculate the contact information according to the location and area of the contact point, and determine whether the authentication is successful by determining whether the contact information coincides with an error within the effective range.

Alternatively, the controller calculates the contact information according to any one or more of the position or area of the contact point and the movement pattern, and determines whether the contact information matches the secret key so as to have an error within an effective range for authentication. You can also decide if you are successful.

In addition, the touch screen may display a number and a number column of 0 to 9.

In addition, the controller may use one or more numbers separately input through the touch screen as second authentication information for authentication, extract a secret key corresponding to the second authentication information, and compare it with the contact information. .

According to another aspect of the present invention, in a method of releasing a lock state in an electronic device having a touch screen, a position, an area, and a contact point corresponding to one or more contact points as an external object contacts the touch screen once Calculating contact information about any one of a movement pattern formed by moving in a state and a combination thereof; Comparing the contact information with a preset secret key to process authentication; And a lock state releasing method comprising the step of releasing the lock state according to the authentication result and a recording medium recording a program for executing the method.

The method may further include receiving one or more numbers through the touch screen, and processing the authentication may be performed by extracting a secret key corresponding to the input number and comparing the contact information.

In addition, the step of processing the authentication may be performed by determining whether the authentication is successful by determining whether the contact information is matched to have an error within the valid range.

According to the present invention, the lock state can be unlocked only by a simple input of a touch screen having a specific position, area, pattern, or a combination thereof, thereby reducing the frequency of occurrence of an input error compared to the input of a password composed of a complex number combination. And, it can provide a convenience for use to unlock more easily.

In addition, the combination of the password and the touch method according to the present invention has the effect that can provide a more secure method of unlocking the lock state.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and in describing the present invention with reference to the accompanying drawings, the same or corresponding elements are denoted by the same reference numerals regardless of the reference numerals, and duplicates thereof. The description will be omitted.

In the following description, a method of releasing a locked state by using a touch screen will be described as a subject performing the method by using a door lock device as an example. It will be apparent to those skilled in the art through the following description that other devices such as a PC, a notebook, a monitor, and the like may be equally applicable.

1 is a block diagram showing the configuration of a door lock device having a touch screen according to an embodiment of the present invention.

Referring to FIG. 1, the door lock apparatus according to the present exemplary embodiment includes a touch screen 10, a locking unit 20, a memory 30, and a controller 40.

The touch screen 10 is provided on the outside of the door, and the user touches a finger or the like to input authentication information such as a password for releasing the lock state of the lock unit 20. A plurality of coordinates are set in the touch screen 10, and the touched area may be calculated according to the coordinates of the position where the finger is touched (hereinafter, referred to as a contact point) and the number of corresponding coordinates. In addition, when the user moves the finger like a sign while the user touches the touch screen 10, a pattern according to the movement (hereinafter referred to as a movement pattern) may be calculated by recognizing positions of the contact points.

The controller 40 functions to calculate contact information such as coordinates of a contact point, an area according to the number of coordinates, and a movement pattern. The controller 40 compares the calculated contact information with authentication information previously stored in the memory 30 and determines whether to release the lock state of the lock unit 20 according to the result.

Here, the authentication information for comparing with the contact information is referred to as a secret key, for example, the secret key may be information about one or more coordinate values corresponding to a specific position of the touch screen.

Hereinafter, the contact information and the secret key will be described in more detail.

2 to 5 are exemplary views showing a contact point corresponding to a secret key according to each embodiment of the present invention.

First, referring to FIG. 2, the secret key may be set to coordinate values to have a specific area at a specific position of the touch screen 10 as shown by reference numeral 210. That is, the secret key may be set to release the lock state only when the touch screen 10 is touched to have an area of the corresponding size at the corresponding position of the touch screen 10. Therefore, the user can unlock the door and open the door by simply holding his finger or the like to have the corresponding area at the position shown in the drawing.

Of course, since it is not easy to input exactly to the corresponding position and area, it is preferable that a slight error is recognized, and thus may have an error range such as hatched reference numeral 220. The error range can minimize the error of the input and at the same time it is desirable to have the smallest range. In other words, if the error range is too small, an error of input may occur frequently. If the error range is too wide, the function as secret information may be weakened. For example, the error range may be set to have an area of about 1/3 of the secret key area.

For convenience of understanding, for example, the coordinates according to the contact information match at least 80% with the coordinates of the secret key, and the remaining coordinates of the contact information that do not coincide with the number of coordinates according to the secret key are compared with each other. Authentication can be successful only if the number is 25% or less.

As another example, compared to a secret key, the area has at least 90% (i.e., if the number of coordinates is equal to or greater than 90%), and the position has at least 80% (i.e., at least 80% of the secret key coordinates) Authentication) can only succeed if matching contact information is entered. It will be apparent to those skilled in the art that the above error ranges are merely exemplary and may be variously set so as to minimize an error of an input as described above and not have a wide range that can be easily recognized by others.

Here, the coordinate line 230 may be displayed on the touch screen 10 so that the user can recognize the location of the secret key more accurately. Of course, the conventional numerical display cell 330 may be used without needing to display a separate coordinate line as shown in FIG. 3.

Referring to FIG. 3, according to another embodiment, the secret key 310 may be set such that a plurality of contact points exist at different positions. That is, the user may release the locked state of the door by simultaneously touching the touch screen 10 using two fingers to have the same position and area as the reference numeral 310. Here, as shown in the figure, the number and each number display column 330 is displayed on the touch screen 10, so that the user can more conveniently recognize the location of the secret key set by the user. Alternatively, unlike the drawing, only numbers may be displayed without numbers.

Referring to FIG. 4 according to another embodiment, the secret key 410 may be set to have a specific pattern. For example, as shown in the drawing, if a continuous contact point is touched to have a certain thickness without lifting a finger between the number 7 and the symbol #, the symbol # to the number 8, and the number 8 to the number 0, the locked state is The secret key can be set to be released. Here, as the authentication information for authentication, the use of the position and the thickness of the specific pattern and the contact point as an example, but only one of the position and thickness may be used. Accordingly, the user can easily unlock the door by inputting contact information according to the secret key as shown in the drawing as if a sign is performed at a specific position.

In the present embodiment, a specific pattern and a position and / or area (ie, thickness) is set as a secret key as an example, but when the recognition technology of the pattern is improved and the recognition rate is increased, regardless of the position (and / or interview) The private key can be set only by the pattern. That is, referring to FIG. 5 according to another embodiment, when contact information having the same movement pattern as that of the secret key 510 is input at any thickness at any position of the touch screen 10, the locked state of the door may be Can be released. According to this, the user only needs to touch the touch screen 10 in a pattern such as a secret key preset with magnetic writing. In this case, the comparison between the secret key 510 and the contact information may be a comparison by a coordinate value, but may also be performed by simply comparing the shape of the pattern, the movement path, and the like. Since the pattern comparison technique will be apparent to those skilled in the art, a detailed description thereof will be omitted.

Although the above-described embodiments use only contact information such as a specific position, area, movement pattern, or a combination thereof, the touch screen 10 may be used as an example. However, numbers and contact information may be used together for enhanced security. . For example, as the authentication information for releasing the locked state, a secret key and a number as in the above examples may be used together. For example, referring to FIG. 3, when the user presses a predetermined number (for example, 5) and touches a touch point corresponding to a secret key as shown by reference numeral 310, the user may unlock the door. In summary, not only the secret key described above is used as the authentication information, but also numerical information is also used.

In this case, it is easy to set and use different authentication information for each of a plurality of users. For example, user A may set the secret key 1 according to the number 1 and the contact point as shown in FIG. 2, and user B may set the secret key 2 according to the number 2 and the contact point as shown in FIG. .

Therefore, by using authentication information according to a different secret key for each of a plurality of users, there is an effect that can prevent security vulnerabilities due to the external exposure of the authentication information compared to the method of using only the same password. In addition, by using different secret keys for each user, if the secret key and the personal information (for example, the user name) are set together, the door lock device according to the present embodiment can recognize the user who authenticates. For example, when the company uses the door lock device according to the present embodiment, it is possible to recognize the user who enters and exits, so there is an advantage in that it can replace the function of the existing attendance card that checks the time when the employee goes to work.

Of course, one user may use a plurality of authentication information.

In addition, a conventional password input method and a method using a secret key according to a specific position, area or pattern according to the present invention may be used together. For example, when a password is normally input as usual, and the user wants to quickly release the lock state in an emergency situation, the secret key as described above can be used.

Hereinafter, the lock release control process in the door lock device will be described.

6 and 7 are flowcharts illustrating a unlocking process according to each embodiment of the present invention.

First, referring to the embodiment of FIG. 6, an electronic device such as a door lock device and a mobile phone processes input contact information according to the touch screen being touched by the user (S600) (S610). That is, when the touch screen 10 is touched by the user, the electronic device calculates any one of a position, an area, a movement pattern, and a combination thereof by using coordinate values belonging to the touch point and inputs the touch information according to the touch point. . Here, in order to prevent waste of power, contact information may be received after input of an input execution button (not shown) which is not normally operated or after an initial touch of the touch screen 10.

The electronic device compares the input contact information with a previously stored secret key (S620). As described above, the electronic device determines whether the contact information and the secret key match within the preset error range (S630), and if it matches, releases the lock state (S640). As described above, in the case of authentication according to the location and area of the contact point, for example, the coordinate values according to the secret key and the coordinate values of the contact information are compared, and the lock state is released when a predetermined ratio coincides with each other. Alternatively, when using the pattern as described above, the lock state is released when the contact information is compared with another input pattern and the pattern of the secret key.

If the contact information and the secret key do not match, a warning sound is output and the lock state is maintained (s650).

Referring to FIG. 7 according to another embodiment, the first electronic device receives one numeric information and contact information through the touch screen 10 (S710). Of course, the numeric information may also be contact information in contact with the touch screen 10, but for convenience of description, the first touch is recognized as a numeric input and from the second touch, the touch information has contact points as shown in FIGS. 2 to 5. It is assumed that it is recognized. That is, in the present exemplary embodiment, a case in which a user inputs an initial number and then performs an input according to a contact point having one or more of a specific position, area, and pattern will be described as an example. Of course, the order may be changed. Of course. That is, after an input is performed according to a contact point having at least one of a specific position, an area, and a movement pattern, an input according to a number may be performed.

In addition, the case where the input of a number is one example, but it is obvious that there may be more than two.

The electronic device extracts a secret key according to the input number from among one or more secret keys stored in the memory 30 (S720), and compares the extracted secret key with the contact information (S730). That is, when the authentication information is a combination of a number and a secret key as described above for security enhancement, the contact information is compared with the secret key corresponding to the input number. Of course, it is natural that the authentication procedure may be performed by first comparing the contact information with one or more preset secret keys, and then comparing the input number with the number for authentication set to correspond to the matched secret key.

The electronic device determines whether the contact information and the secret key are matched to have an error within the valid range (s740), and if they match, the locked state is released (s750). If the electronic devices are different from each other, the locked state is maintained (s760).

The method of the present invention as described above may be implemented in a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

1 is a block diagram showing the configuration of a door lock device having a touch screen according to an embodiment of the present invention.

2 to 5 are exemplary views showing a contact point corresponding to a secret key according to each embodiment of the present invention.

6 and 7 are flowcharts illustrating a lock release process according to each embodiment of the present invention.

Claims (10)

A touch screen for receiving information for authentication from a user; And Calculates contact information for any one of a position, an area, a movement pattern formed by moving in a contact state, and a combination thereof, corresponding to one or more contact points when an external object contacts the touch screen once; And a controller configured to process authentication for determining whether to release the locked state by comparing a key with the contact information. The method of claim 1, The control unit calculates the contact information according to the location and area of the contact point, and determines whether the authentication success by determining whether or not the contact information is matched with an error within the effective range. Device. The method of claim 1, The controller calculates the contact information according to at least one of the location or area of the contact point and the movement pattern, and determines whether the contact information is consistent with the secret key so as to have an error within an effective range. Electronic device, characterized in that for determining. The method of claim 1, The electronic device, characterized in that the number and the numeral space of 0 to 9 are displayed on the touch screen. The method according to claim 1 or 2, And the controller uses one or more numbers separately input through the touch screen as second authentication information for authentication. The method of claim 5, And the control unit extracts a secret key corresponding to the second authentication information and compares it with the contact information. A method of releasing a locked state in an electronic device having a touch screen, Calculating contact information about any one of a position, an area, a movement pattern formed by moving in contact with the at least one contact point, and a combination thereof, when an external object contacts the touch screen once; Comparing the contact information with a preset secret key to process authentication; And And releasing the locked state according to the authentication result. The method of claim 7, wherein Further comprising the step of receiving one or more numbers through the touch screen, The processing of the authentication may include performing the extraction by comparing the contact information with a secret key corresponding to the input number. The method of claim 7, wherein And the step of processing the authentication is performed by determining whether the contact information coincides with the secret key to have an error within an effective range, and determining whether the authentication is successful. A recording medium in which a combination of instructions for performing the method of any one of claims 7 to 9 is tangibly embodied and a program readable by a digital information processing apparatus is recorded.

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