WO2021132736A1

WO2021132736A1 - Electronic device for checking authentication information and control method therefor

Info

Publication number: WO2021132736A1
Application number: PCT/KR2019/018278
Authority: WO
Inventors: 최경동; 김정환; 이환근; 전우창
Original assignee: 엘지전자 주식회사
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2021-07-01

Abstract

An electronic device according to one embodiment of the present invention comprises a sensor for sensing fingerprint information, and a control unit, wherein the control unit can: check a first touch input set including at least one touch input of which at least a portion of the location of a fingerprint corresponding to the sensor in response to a touch is fixed, and a second touch input set including at least one touch input of which the location of a fingerprint corresponding to the sensor in response to a touch is variable; and control checking of authentication information corresponding to a user on the basis of a first fingerprint information set corresponding to the first touch input set and a second fingerprint information set corresponding to the second touch input set.

Description

Electronic device for checking authentication information and control method therefor

The present specification relates to an electronic device for checking authentication information based on information input through a sensor for detecting fingerprint information through a touch, and a method for controlling the same. More specifically, it relates to a method of processing information received through a sensor to obtain user authentication information, and a control apparatus using the same.

With the recent development of electronic technology, electronic devices provide various functions. For example, the electronic device may provide a user authentication function using fingerprint information on the basis of including a sensor for detecting fingerprint information.

In order to provide various functions as described above, the electronic device may include various sensors, and there is a need to increase the size of the sensor included in the electronic device to obtain more accurate information.

Meanwhile, in terms of usability of the electronic device, the size of the electronic device or the area occupied by the sensor needs to be minimized. Accordingly, in recent years, the development of a technology for reducing the size of a sensor included in an electronic device is actively progressing.

In the case of a sensor for detecting fingerprint information, a different fingerprint pattern may be obtained according to a location touched by a user's finger. Accordingly, in order to obtain fingerprint information for a specific user, the sensor requires a touch input corresponding to the position of the fingerprint of the finger, respectively.

In this case, when the size of the sensor is reduced, multiple touch inputs are required to obtain complete fingerprint information, and as a result, the size of the sensor and the number of touches for input may be inversely proportional. That is, as the size of the sensor decreases in order to obtain accurate fingerprint information, the number of fingerprint input by the user may increase.

Accordingly, a technique for more accurately acquiring fingerprint information even with a simple operation is required.

An object of the present specification is to provide an electronic device and a control method thereof for more effectively and efficiently identifying authentication information corresponding to a user by acquiring fingerprint information based on different types of touch inputs.

However, the problem to be solved by the present specification is not limited as mentioned above, and although not mentioned, it includes a purpose that can be clearly understood by those of ordinary skill in the art to which this specification belongs from the description below. can do.

An electronic device according to an embodiment of the present invention includes a sensor for detecting fingerprint information; and a control unit, wherein the control unit corresponds to a first touch input set including at least one touch input to which at least a portion of a position of a fingerprint corresponding to the sensor is fixed in response to a touch and a touch corresponding to the sensor A second touch input set including at least one touch input in which a position of a fingerprint is changed is identified, and a first fingerprint information set corresponding to the first touch input set and a second touch input set corresponding to the second touch input set are identified. Verification of authentication information corresponding to the user may be controlled based on the fingerprint information set.

According to an embodiment of the present specification, a control method of an electronic device including a sensor for detecting fingerprint information includes at least one touch input in which at least a portion of a position of a fingerprint corresponding to the sensor is fixed in response to a touch identifying a second touch input set including a first touch input set and at least one touch input in which a position of a fingerprint corresponding to the sensor is variable in response to the touch; The method may include identifying authentication information corresponding to the user based on the first set of fingerprint information and the second set of fingerprint information corresponding to the second set of touch input.

The electronic device and the method for controlling the same according to an embodiment of the present specification may more effectively and efficiently identify authentication information corresponding to a user by acquiring fingerprint information based on different types of touch inputs.

In addition, according to an embodiment of the present specification, fingerprint information is processed in different ways according to a method of a touch input input to a sensor in order to obtain fingerprint information corresponding to a user, and authentication information corresponding to the user is obtained based on this. By acquiring it, the time for fingerprint input may be reduced and user usability may be improved.

However, the effects obtainable in the present specification are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present disclosure belongs from the description below. will be able

1A is a block diagram illustrating a mobile terminal related to the present invention.

1B and 1C are conceptual views of an example of a mobile terminal related to the present invention viewed from different directions.

2 is a diagram for explaining an example of a touch input applied to an electronic device according to an embodiment of the present specification.

3 is a diagram for describing another example of a touch input applied to an electronic device according to an exemplary embodiment of the present specification.

4 is a functional block diagram of an electronic device according to an embodiment of the present specification.

5 is a flowchart of each step of a method for controlling an electronic device according to an embodiment of the present specification.

6 is a flowchart illustrating in more detail an example of some steps of a method for controlling an electronic device according to an embodiment of the present specification.

7 is a flowchart illustrating in more detail another example of some steps of a method for controlling an electronic device according to an embodiment of the present specification.

8 is a diagram for describing another example of a touch input applied to an electronic device according to an exemplary embodiment of the present specification.

9 is a diagram illustrating an example of a screen for an acquisition state of authentication information provided by an electronic device according to an embodiment of the present specification.

10 is a diagram illustrating another example of a screen for an acquisition state of authentication information provided by an electronic device according to an embodiment of the present specification.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and overlapping descriptions thereof will be omitted. The suffixes "module" and "part" for the components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have a meaning or role distinct from each other by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as "comprises" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

The mobile terminal described in this specification includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation system, and a slate PC. , tablet PCs, ultrabooks, wearable devices, for example, watch-type terminals (smartwatch), glass-type terminals (smart glass), HMD (head mounted display), etc. may be included. have.

However, it is common knowledge in the art that the configuration according to the embodiment described in this specification may be applied to a fixed terminal such as a digital TV, a desktop computer, a digital signage, etc., except when applicable only to a mobile terminal. If you're an engineer, it's easy to figure out.

1A to 1C, FIG. 1A is a block diagram illustrating an electronic device related to the present invention, and FIGS. 1B and 1C are conceptual views of an example of the electronic device related to the present invention viewed from different directions. Hereinafter, a case in which the electronic device is implemented as the mobile terminal 100 will be described as an example, but the present invention is not limited thereto.

Referring to FIG. 1A , the mobile terminal 100 includes a wireless communication unit 110 , an input unit 120 , a sensing unit 140 , an output unit 150 , an interface unit 160 , a memory 170 , and a control unit 180 . and a power supply unit 190 and the like. The components shown in FIG. 1A are not essential for implementing the mobile terminal 100, so the mobile terminal 100 described herein may have more or fewer components than those listed above. have.

More specifically, among the components, the wireless communication unit 110 includes a wireless communication system between the mobile terminal 100 and a wireless communication system, between the mobile terminal 100 and another mobile terminal, or between the mobile terminal 100 and an external server. It may include one or more modules that enable communication. In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of a broadcast reception module 111 , a mobile communication module 112 , a wireless Internet module 113 , a short-range communication module 114 , and a location information module 115 . .

The input unit 120 includes a camera 121 or an image input unit for inputting an image signal, a microphone 122 or an audio input unit for inputting an audio signal, and a user input unit 123 for receiving information from a user, for example, , a touch key, a physical key, etc.). The voice data or image data collected by the input unit 120 may be analyzed and processed as a user's control command.

The sensing unit 140 may include one or more sensors for sensing at least one of information in the mobile terminal 100 , surrounding environment information surrounding the mobile terminal 100 , and user information. For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity. Sensor (G-sensor), gyroscope sensor, motion sensor, RGB sensor, infrared sensor (IR sensor: infrared sensor), fingerprint sensor (finger scan sensor), ultrasonic sensor , optical sensors (eg, cameras (see 121)), microphones (see 122), battery gauges, environmental sensors (eg, barometers, hygrometers, thermometers, radiation detection sensors, It may include at least one of a thermal sensor, a gas sensor, etc.) and a chemical sensor (eg, an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the mobile terminal 100 disclosed in this specification may combine and utilize information sensed by at least two or more of these sensors.

The output unit 150 is for generating an output related to visual, auditory or tactile sense, and includes at least one of a display unit 151 , a sound output unit 152 , a haptic module 153 , and an optical output unit 154 . can do. The display unit 151 may implement a touch screen by forming a layer structure with the touch sensor or being formed integrally with the touch sensor. Such a touch screen may function as the user input unit 123 providing an input interface between the mobile terminal 100 and the user, and may provide an output interface between the mobile terminal 100 and the user.

The interface unit 160 serves as a passage with various types of external devices connected to the mobile terminal 100 . This interface unit 160, a wired / wireless headset port (port), an external charger port (port), a wired / wireless data port (port), a memory card (memory card) port, for connecting a device equipped with an identification module It may include at least one of a port, an audio input/output (I/O) port, a video input/output (I/O) port, and an earphone port. In response to the connection of the external device to the interface unit 160 , the mobile terminal 100 may perform appropriate control related to the connected external device.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100 . The memory 170 may store a plurality of application programs (application programs or applications) driven in the mobile terminal 100 , data for operation of the mobile terminal 100 , and commands. At least some of these application programs may be downloaded from an external server through wireless communication. In addition, at least some of these application programs may exist on the mobile terminal 100 from the time of shipment for basic functions (eg, incoming calls, outgoing functions, message reception, and outgoing functions) of the mobile terminal 100 . Meanwhile, the application program may be stored in the memory 170 , installed on the mobile terminal 100 , and driven to perform an operation (or function) of the mobile terminal 100 by the controller 180 .

In addition to the operation related to the application program, the controller 180 generally controls the overall operation of the mobile terminal 100 . The controller 180 may provide or process appropriate information or functions to the user by processing signals, data, information, etc. input or output through the above-described components or by driving an application program stored in the memory 170 .

In addition, the controller 180 may control at least some of the components discussed with reference to FIG. 1A in order to drive an application program stored in the memory 170 . Furthermore, in order to drive the application program, the controller 180 may operate by combining at least two or more of the components included in the mobile terminal 100 with each other.

The power supply unit 190 receives external power or internal power under the control of the control unit 180 to supply power to each component included in the mobile terminal 100 . The power supply 190 includes a battery, and the battery may be a built-in battery or a replaceable battery.

At least some of the respective components may operate in cooperation with each other to implement the operation, control, or control method of the mobile terminal 100 according to various embodiments to be described below. Also, the operation, control, or control method of the mobile terminal 100 may be implemented on the mobile terminal 100 by driving at least one application program stored in the memory 170 .

1B and 1C , the disclosed mobile terminal 100 has a bar-shaped terminal body. However, the present invention is not limited thereto, and may be applied to various structures such as a watch type, a clip type, a glass type, or a folder type in which two or more bodies are coupled to be relatively movable, a flip type, a slide type, a swing type, a swivel type, etc. . Although it will relate to a particular type of mobile terminal, descriptions regarding a particular type of mobile terminal are generally applicable to other types of mobile terminals.

Here, the terminal body may be understood as a concept referring to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (eg, a frame, a housing, a cover, etc.) forming an exterior. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102 . Various electronic components are disposed in the inner space formed by the combination of the front case 101 and the rear case 102 . At least one middle case may be additionally disposed between the front case 101 and the rear case 102 .

A display unit 151 is disposed on the front surface of the terminal body to output information. As illustrated, the window 151a of the display unit 151 may be mounted on the front case 101 to form a front surface of the terminal body together with the front case 101 .

In some cases, an electronic component may also be mounted on the rear case 102 . Electronic components that can be mounted on the rear case 102 include a removable battery, an identification module, a memory card, and the like. In this case, the rear cover 103 for covering the mounted electronic component may be detachably coupled to the rear case 102 . Accordingly, when the rear cover 103 is separated from the rear case 102 , the electronic components mounted on the rear case 102 are exposed to the outside.

As illustrated, when the rear cover 103 is coupled to the rear case 102 , a portion of the side surface of the rear case 102 may be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the combination. On the other hand, the rear cover 103 may be provided with an opening for exposing the camera 121b, the light output unit 154, the flash 124 and the first operation unit 123a to the outside.

The

cases

101 , 102 , and 103 may be formed by injection of synthetic resin or may be formed of metal, for example, stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

Unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components, the mobile terminal 100 may be configured such that one case provides the internal space. In this case, the mobile terminal 100 of the uni-body in which synthetic resin or metal is connected from the side to the back can be implemented.

Meanwhile, the mobile terminal 100 may include a waterproofing unit (not shown) that prevents water from permeating into the terminal body. For example, the waterproof part is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102, or between the rear case 102 and the rear cover 103, and a combination thereof It may include a waterproof member for sealing the inner space of the city.

The mobile terminal 100 includes a display unit 151 , first and second

sound output units

152a and 152b , a proximity sensor 141 , an illuminance sensor 142 , a light output unit 154 , and first and second audio outputs. Cameras 121a and 121b, first and

second operation units

123a and 123b, a microphone 122, an interface unit 160, and the like may be provided.

Hereinafter, as shown in FIGS. 1B and 1C, the display unit 151, the first sound output unit 152a, the proximity sensor 141, the illuminance sensor 142 and the first camera ( 121a) is disposed, the second operation unit 123b, the second sound output unit 152b, the microphone 122 and the interface unit 160 are disposed on the side surface of the terminal body, and the light output unit is disposed on the rear surface of the terminal body The mobile terminal 100 in which the 154, the operation unit 123a, the second camera 121b, and the flash 124 are disposed will be described as an example.

However, these configurations are not limited to this arrangement. These components may be excluded, replaced, or disposed on different sides as necessary. For example, the first operation unit 123a may not be provided on the rear surface of the terminal body, and the second sound output unit 152b may be provided on the rear surface of the terminal body rather than the side surface of the terminal body.

The display unit 151 displays (outputs) information processed by the mobile terminal 100 . For example, the display unit 151 may display execution screen information of an application program driven in the mobile terminal 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the execution screen information. .

The display unit 151 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (Flexible Display). display), a three-dimensional display (3D display), and an electronic ink display (e-ink display) may include at least one.

In addition, two or more display units 151 may exist depending on the implementation form of the mobile terminal 100 . In this case, in the mobile terminal 100 , a plurality of display units may be spaced apart from each other or disposed integrally on one surface, or may be respectively disposed on different surfaces.

The display unit 151 may include a touch sensor for sensing a touch on the display unit 151 so as to receive a control command input by a touch method. Using this, when a touch is made to the display unit 151, the touch sensor detects the touch, and the controller 180 may generate a control command corresponding to the touch based thereon. The content input by the touch method may be letters or numbers, or menu items that can be instructed or designated in various modes.

On the other hand, the touch sensor is configured in the form of a film having a touch pattern and disposed between the window 151a and a display (not shown) on the rear surface of the window 151a, or a metal wire patterned directly on the rear surface of the window 151a. may be Alternatively, the touch sensor may be integrally formed with the display. For example, the touch sensor may be disposed on a substrate of the display or provided inside the display.

As such, the display unit 151 may form a touch screen together with the touch sensor, and in this case, the touch screen may function as the user input unit 123 (refer to FIG. 1A ). In some cases, the touch screen may replace at least some functions of the

operation units

123a and 123b.

The first sound output unit 152a may be implemented as a receiver that transmits a call sound to the user's ear, and the second sound output unit 152b is a loud speaker that outputs various alarm sounds or multimedia reproduction sounds. ) can be implemented in the form of

A sound hole for emitting sound generated from the first sound output unit 152a may be formed in the window 151a of the display unit 151 . However, the present invention is not limited thereto, and the sound may be configured to be emitted along an assembly gap between structures (eg, a gap between the window 151a and the front case 101). In this case, the appearance of the mobile terminal 100 may be simpler because the holes formed independently for sound output are not visible or hidden.

The light output unit 154 is configured to output light to notify the occurrence of an event. Examples of the event may include a message reception, a call signal reception, a missed call, an alarm, a schedule notification, an email reception, and information reception through an application. When the user's event confirmation is detected, the controller 180 may control the light output unit 154 to end the light output.

The first camera 121a processes an image frame of a still image or a moving image obtained by an image sensor in a shooting mode or a video call mode. The processed image frame may be displayed on the display unit 151 and stored in the memory 170 .

The

manipulation units

123a and 123b are an example of the user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100 , and may also be collectively referred to as a manipulating portion. The

manipulation units

123a and 123b may be adopted in any manner as long as they are operated in a tactile manner such as touch, push, scroll, etc., while the user receives a tactile feeling. In addition, the

operation units

123a and 123b may be operated in a manner in which the user is operated without a tactile feeling through a proximity touch, a hovering touch, or the like.

The

operation units

123a and 123b may be a push key or may be configured as a combination of a touch key and a push key. In addition, the operation units (123a, 123b) may be configured in a layered form with the fingerprint sensor.

The contents input by the

operation units

123a and 123b may be variously set. The

operation units

123a and 123b receive commands such as menu, home key, cancel, search, etc., adjust the volume of sound output from the first or second

sound output units

152a and 152b, and touch the display unit 151 . A command such as switching to the recognition mode may be input.

Meanwhile, as another example of the user input unit 123 , a first operation unit 123a may be provided on the rear surface of the terminal body. The first operation unit 123a is operated to receive a command for controlling the operation of the mobile terminal 100 , and the inputted contents may be variously set. For example, a command such as power on/off, start, end, scroll, etc., control of the sound output from the first and second

sound output units

152a and 152b, and a touch recognition mode of the display unit 151 You can receive commands such as switching of The first manipulation unit 123a may be embodied in a form capable of input by a touch input, a push input, or a combination thereof.

The first operation unit 123a may be disposed to overlap the display unit 151 on the front side in the thickness direction of the terminal body. As an example, the first operation unit 123a may be disposed on the upper rear portion of the terminal body so that the user can easily manipulate the terminal body using his index finger when holding the terminal body with one hand. However, the present invention is not necessarily limited thereto, and the position of the first operation unit 123a may be changed.

As such, when the first operation unit 123a is provided on the rear surface of the terminal body, a new type of user interface using the same can be implemented. In addition, the display unit 151 may be configured with a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing a user's fingerprint, and the controller 180 may use fingerprint information detected through the fingerprint recognition sensor as an authentication means. The fingerprint recognition sensor may be built in the display unit 151 or the user input unit 123 .

The microphone 122 is configured to receive a user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations and configured to receive stereo sound.

The interface unit 160 serves as a passage through which the mobile terminal 100 can be connected to an external device. For example, the interface unit 160 is a connection terminal for connection with another device (eg, earphone, external speaker), a port for short-range communication (eg, infrared port (IrDA Port), Bluetooth port (Bluetooth) Port), a wireless LAN port, etc.], or at least one of a power supply terminal for supplying power to the mobile terminal 100 . The interface unit 160 may be implemented in the form of a socket for accommodating an external card such as a Subscriber Identification Module (SIM), a User Identity Module (UIM), or a memory card for information storage.

A second camera 121b may be disposed on the rear side of the terminal body. In this case, the second camera 121b has a photographing direction substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix form. Such a camera may be referred to as an 'array camera'. When the second camera 121b is configured as an array camera, an image may be captured in various ways using a plurality of lenses, and an image of better quality may be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 illuminates light toward the subject when the subject is photographed by the second camera 121b.

A second sound output unit 152b may be additionally disposed on the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a, and may be used to implement a speakerphone mode during a call.

At least one antenna for wireless communication may be provided in the terminal body. The antenna may be built into the terminal body or formed in the case. For example, an antenna forming a part of the broadcast reception module 111 (refer to FIG. 1A ) may be configured to be withdrawable from the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner surface of the rear cover 103 , or a case including a conductive material may be configured to function as an antenna.

The terminal body is provided with a power supply unit 190 (refer to FIG. 1A ) for supplying power to the mobile terminal 100 . The power supply unit 190 may include a battery 191 that is built into the terminal body or is detachably configured from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160 . In addition, the battery 191 may be configured to be wirelessly charged through a wireless charging device. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

On the other hand, in this figure, the rear cover 103 is coupled to the rear case 102 to cover the battery 191 to limit the detachment of the battery 191 and to protect the battery 191 from external shocks and foreign substances. is foreshadowing When the battery 191 is detachably configured to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102 .

An accessory for protecting the appearance of the mobile terminal 100 or supporting or extending a function of the mobile terminal 100 may be added. As an example of such an accessory, there may be a cover or a pouch that covers or accommodates at least one surface of the mobile terminal 100 . The cover or pouch may be configured to extend the function of the mobile terminal 100 by interworking with the display unit 151 . As another example of the accessory, there may be a touch pen for assisting or extending a touch input to a touch screen.

Referring to FIG. 2 , a method of inputting a fingerprint to an electronic device through a touch is illustrated.

Reference numerals

2a and 2b conceptually indicate a case in which a touch input is applied to the sensor area 210 on the rear surface of the electronic device. A sensor for detecting fingerprint information, for example, a fingerprint recognition sensor, may be disposed in the sensor area 210 .

Specifically, reference numeral 2a denotes a situation before a touch input is applied to the sensor region 210 , and reference numeral 2b denotes a situation in which a touch input is applied to the sensor region 210 .

Referring to reference numeral 2a, the fingerprint area 221 of the user's finger 220 may be located opposite to the position of the sensor area 210 . When the fingerprint area 221 is touched on the sensor area 210 as indicated by reference numeral 2b, a touch input may be applied to the sensor.

The electronic device may acquire the fingerprint information set in response to the touch input. The fingerprint information set may include a fingerprint information frame obtained through a sensor based on a touch input, that is, information about a user's fingerprint.

Meanwhile, the touch input of FIG. 2 is an input applied to a specific point (or specific location) of the sensor area 210 , and may include a touch input in which a location of a fingerprint corresponding to the sensor is fixed. When such a touch input is applied to the sensor, one fingerprint information frame may be included in the fingerprint information set corresponding to the touch input checked by the electronic device.

Also, in the embodiment, the touch input in which the position of the fingerprint is fixed may include a case in which the position change value of the fingerprint input corresponding to the sensor is less than or equal to a specific value. can be obtained.

3 is a diagram for describing another example of a touch input applied to an electronic device according to an exemplary embodiment of the present specification. Hereinafter, in FIG. 3 , content overlapping with FIG. 2 will be omitted.

Referring to FIG. 3 , another method of inputting a fingerprint to an electronic device through a touch is illustrated.

Referring to reference numeral 3a , the fingerprint area 321 of the user's finger 320 may be touched by the sensor area 310 . In this case, the electronic device may check the fingerprint information frame for the fingerprint area 321 corresponding to the first point.

Referring to reference numeral 3b , the user's finger 320 may move while in contact with the sensor area 310 . In this case, since the fingerprint area 321 is also moved in response to the movement of the finger 320 , the fingerprint area of the finger 320 touching the sensor area 310 may be changed.

That is, when a drag input in which the touched part moves is applied, the position of the fingerprint corresponding to the sensor may be changed. In this case, the sensor may acquire a fingerprint information frame corresponding to the changed fingerprint area. For example, the sensor may check the fingerprint information frame at a specific time interval. Based on this, when a drag input exceeding a specific time is applied, a plurality of fingerprint information frames that are distinguished from each other may be obtained through the sensor.

As described above, in the case of the drag input according to the embodiment, fingerprint information of various fingerprint regions 321 included in the finger 320 may be continuously acquired while one touch is maintained.

In FIG. 3 , a case in which the finger 320 moves up and down is illustrated as an example, but the present invention is not limited thereto, and for example, the finger 320 may move in a left and right or diagonal direction. A specific example related thereto may refer to FIG. 8 .

On the other hand, although the embodiment has been described based on that the fingerprint sensor is disposed on the back of the terminal, the fingerprint sensor may be disposed on at least one of the front, side, and back of the terminal, and the fingerprint sensor disposed in each area will be described below. A method of obtaining fingerprint information may be implemented.

4 is a functional block diagram of an electronic device according to an embodiment of the present specification. An element of the electronic device 400 to be described later refers to a unit for processing at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software.

Referring to FIG. 4 , the electronic device 400 may include a sensor 410 , a display 420 , and a controller 430 .

The sensor 410 may detect fingerprint information. Specifically, the sensor 410 may detect fingerprint information based on a user's finger touching a specific area of the electronic device 400 in which the sensor 410 is disposed.

In an embodiment, the sensor 410 may acquire one fingerprint information frame or acquire two or more fingerprint information frames according to a touch input. For example, when the input to the sensor 410 is a touch input (eg, a tap input) for a specific point, one fingerprint information frame may be obtained. If the input to the sensor 410 is a touch input to a plurality of points (eg, a drag input), two or more fingerprint information frames are displayed based on the time the touch input is applied or the movement pattern of the touch input. can be obtained.

In an embodiment, the sensor 410 may acquire the fingerprint information frame in a specific time unit. For example, the sensor 410 may acquire a fingerprint information frame in 0.5 second units. If the touch input includes a tap input, the input may be applied for 0.5 seconds, and thus one fingerprint information frame may be obtained. If the touch input includes a drag input, the input may be applied for 2 seconds, and thus four fingerprint information frames may be obtained.

In some cases, the sensor 410 may acquire different fingerprint information frames in a specific time unit. For example, if the specific time is 0.5 seconds and a tap input is applied to the sensor 410, even if the touch input is maintained for 2 seconds, since the fingerprint area in contact with the sensor 410 is the same every 0.5 seconds, the fingerprint information frame may be the same. Based on this, the sensor 410 may acquire one fingerprint information frame. In addition, in the embodiment, when the fingerprint information received by the sensor 410 is maintained for more than 0.5 seconds, and at least a part of the obtained fingerprint information frame remains the same, the controller 430 may confirm this as a tap input.

If a drag input is applied for 1 second, the fingerprint area touched by the sensor 410 may be different every 0.5 seconds. In this case, since the fingerprint information frames obtained by the sensor 410 are also different, two fingerprint information frames may be obtained.

The sensor 410 may include, for example, at least one of an ultrasonic fingerprint sensor and an optical fingerprint sensor, but is not limited thereto. It is easy for a person skilled in the art to change and apply various sensors for detecting fingerprint information, so a detailed description thereof will be omitted.

The sensor 410 may be disposed at a predetermined location of the electronic device 400 . For example, the sensor 410 may be disposed in a specific area of at least one of a rear surface, a front surface, and a side surface of the electronic device 400 . The arrangement of the sensor 410 may be variously changed, and the present specification is not limited by the arrangement of the sensor 410 .

The display 420 may provide information processed by the electronic device 400 . For example, the display 420 may display (or output) execution screen information of an application program driven in the electronic device 400 or a user interface (UI) according to the execution screen information.

In embodiments, the display 420 may provide content related to fingerprint information. The content related to fingerprint recognition may include, for example, information on an acquisition state of fingerprint information. A specific example related thereto may refer to FIG. 9 or FIG. 10 .

In embodiments, display 420 may provide information requesting fingerprint information. For example, the display 420 may provide information requesting fingerprint information based on displaying the text 'recognize the fingerprint again'. However, this is only an example, and information requesting fingerprint information may be provided in various forms.

In some cases, the display 420 may be omitted or may operate in a manner connected to the electronic device 400 .

The controller 430 may control the overall operation of the electronic device 400 . The controller 430 may be implemented to include at least one processor according to an embodiment.

The controller 430 includes a first touch input set including at least one touch input to which a position of a fingerprint corresponding to the sensor 410 is fixed in response to a touch and a position of a fingerprint corresponding to the sensor 410 in response to the touch. A second touch input set including at least one touch input in which n is variable may be identified.

For example, the first set of touch inputs includes a touch input (eg, a tap input) by a specific point (or specific location) of a finger, and the second set of touch inputs includes a plurality of points (or multiple locations) of the finger. may include a touch input (eg, a drag input) by .

The controller 430 may identify the first set of fingerprint information in response to the first set of touch inputs, and may identify the set of second fingerprints in response to the set of second touch inputs. Each of the first fingerprint information set and the second fingerprint information set may include at least one distinct fingerprint information frame acquired through the sensor 410 in response to a touch input.

For example, the position of the fingerprint is fixed by the touch input included in the first touch input set, and accordingly, fingerprint information of at least a portion of the fingerprints received by the sensor 410 is maintained within the same range. Each fingerprint information included in the fingerprint information set may include one fingerprint information frame. Since the position of a fingerprint is variable in the touch input included in the second touch input set, each of the fingerprint information included in the second fingerprint information set may include two or more fingerprint information frames.

The controller 430 may identify authentication information corresponding to the user based on the first fingerprint information set corresponding to the first touch input set and the second fingerprint information set corresponding to the second touch input set. The authentication information may include information indicating a user generated based on fingerprint information.

Specifically, the authentication information is information on a unique fingerprint of the user, and may be generated based on a fingerprint information set corresponding to the first touch input set and the second touch input set. For example, the authentication information may be generated by combining information obtained from a fingerprint information set corresponding to the first touch input set and the second touch input set.

Also, in an embodiment, the first touch input set and the second touch input set may be received regardless of an order, and inputs included in each set may be alternately received according to a user's input method.

The authentication information is information for authenticating the user, and may include, for example, information on the shape or shape of a fingerprint.

In an embodiment, the controller 430 may perform an authentication procedure related to a corresponding user in preparation for authentication information and fingerprint information obtained through a sensor in a future authentication situation based on authentication information.

For example, when user authentication is requested, the controller 430 may provide information requesting user authentication through the display 420 . In response to a touch input in which the user's finger is in contact with the sensor 410 , the controller 430 may acquire information (eg, fingerprint information) of an authentication target. The controller 430 may determine whether the acquired authentication target information corresponds to previously registered authentication information. The control unit 430 may confirm that user authentication is successful when the acquired authentication target information corresponds to previously registered authentication information. If the authentication target information corresponds to the previously registered authentication information, it may be confirmed that the user authentication has failed.

The controller 430 may check an acquisition state of the authentication information based on the reception of the first touch input set and the second touch input set. In an embodiment, the first set of touch inputs and the second set of touch inputs may be received in any order. For example, corresponding to the first set of touch inputs

In order to confirm authentication information, a plurality of different fingerprint information obtained by touching a user's finger at various angles or directions may be required. Specifically, the fingerprint information obtained from the user when the user authentication function is used later may be a part of the fingerprint of the finger. Accordingly, in the authentication information registration process as in the present embodiment, it is necessary to acquire information on the entire fingerprint of the finger in order to confirm the authentication information. Accordingly, the control unit 430 may check authentication information corresponding to the entire fingerprint by using the plurality of fingerprint information frames.

However, according to the touch input, that is, according to a touch input such as a tap input (hereinafter, first touch input) or a touch input such as a drag input (hereinafter, second touch input), the fingerprint information frame that the sensor 410 can obtain This may be different, and thus the number of fingerprint information frames required to check authentication information for each touch input may be different.

For example, in order to generate authentication information through a touch input such as a tap input (hereinafter, referred to as a first touch input), 15 fingerprint information frames obtained based on the first touch input being applied 15 times may be required. Here, the 15 fingerprint information frames may correspond to different fingerprint areas.

For another example, in order to generate authentication information through a drag-type touch input (hereinafter, referred to as a second touch input), 45 fingerprint information frames may be required. In this case, the second touch input must be received until 45 fingerprint information frames are obtained.

In some cases, the number of fingerprint information frames required for verification of authentication information may be changed according to resolution. For example, the number of fingerprint information frames required for verification of authentication information in relation to the first touch input may be 15 when the resolution corresponds to the first value, and the resolution is set to the second value (the second value is lower than the first value) may be 20. For another example, the number of fingerprint information frames required for verification of authentication information in relation to the second touch input may be 45 when the resolution corresponds to the first value, and when the resolution corresponds to the second value. can be 55.

The controller 430 may check the acquisition state of the authentication information by checking the first fingerprint information set corresponding to the first touch input set and the second fingerprint information set corresponding to the second touch input set.

In an embodiment, since the first fingerprint information set and the second fingerprint information set are acquired, that is, the type of touch input is different, the acquisition state of authentication information increased according to the fingerprint information frame included in the first fingerprint information set and the second fingerprint information set are different. The acquisition state of the authentication information increased according to the fingerprint information frame included in the 2 fingerprint information set may be different. In this case, the controller 430 may check the acquisition state of the authentication information in consideration of the touch input associated with each of the first and second fingerprint information sets.

In an embodiment, the resolution of the fingerprint information frame included in the first fingerprint information set may be higher than the resolution of the fingerprint information frame included in the second fingerprint information set. In this case, the controller 430 may check the acquisition state of the authentication information in consideration of the touch input associated with each of the first and second fingerprint information sets.

For example, the controller 430 applies a first weight to a value for a fingerprint information frame included in the first fingerprint information set (eg, the number of fingerprint information frames), and includes it in the second fingerprint information set. The acquisition status of authentication information may be confirmed based on applying the second weight to the value of the corresponding fingerprint information frame.

The first weight may have a greater value than the second weight. For example, the first weight may be 7, and the second weight may be 2. In this case, if the first fingerprint information set includes one fingerprint information frame and the second fingerprint information set includes 20 fingerprint information frames, the acquisition state of the authentication information may be determined to be 47, which is the sum of 7 and 40.

In an embodiment, the controller 430 may check the first acquisition state of the authentication information based on the first weight and the number of fingerprint information frames included in the first fingerprint information set. Specifically, the first acquisition state may be confirmed by the product of the first weight and the number of fingerprint information frames included in the first fingerprint information set. For example, when the first weight is 7 and the number of fingerprint information frames included in the first fingerprint information set is one, the first acquisition state may correspond to seven.

The controller 430 may check the second acquisition state of the authentication information based on the second weight and the number of fingerprint information frames included in the second fingerprint information set. Specifically, the second acquisition state may be confirmed by the product of the second weight and the number of fingerprint information frames included in the second set of fingerprint information. For example, when the second weight is 1 and the number of fingerprint information frames included in the second fingerprint information set is 20, the second acquisition state may correspond to 40.

In an embodiment, the first weight may be determined based on the size of the sensor and the number of fingerprint information frames related to registration of authentication information based on a touch input for a specific point, that is, a tap input. For example, when N (N is a natural number) number of fingerprint information frames based on a tap input required to register authentication information for a sensor having a specific size, the first weight may correspond to 100/N.

Here, the specific point is a predetermined location related to the sensor 410 , and the controller 430 may acquire fingerprint information corresponding to the specific point in response to a touch input being applied to the specific point. The obtained fingerprint information set may be included in the first fingerprint information set.

The second weight may be determined based on the size of the sensor and the number of fingerprint information related to registration of authentication information based on a touch input moving a plurality of points, that is, a drag input. For example, when the number of fingerprint information frames based on a drag input required to register authentication information for a sensor having a specific size is M (M is a natural number), the first weight may correspond to 100/M.

In an embodiment, N may be less than M, which may be based on a difference in resolution.

The controller 430 may check the third acquisition state of the authentication information based on the first acquisition state and the second acquisition state. Specifically, the controller 430 may check the third acquisition state based on summing the first acquisition state and the second acquisition state. For example, when the first acquisition state is 7 and the second acquisition state is 40, the 3 acquisition state may correspond to 47 which is the sum of 7 and 40.

When the third acquisition state satisfies a specific condition, the controller 430 may register authentication information corresponding to the user. The specific condition may include a case where the value indicated by the third acquisition state corresponds to the specific value. For example, when the third acquisition state corresponds to 100, the control unit 430 may register authentication information corresponding to the user by using a fingerprint information frame included in each of the first fingerprint information set and the second fingerprint information set. have.

Registration of authentication information may include a process of registering a user for later use of a user authentication function. Registration of authentication information using the fingerprint information frame is easy for a person skilled in the art, and detailed description thereof will be omitted.

In an embodiment, when the third acquisition state does not satisfy a specific condition, the controller 430 may provide information requesting additional fingerprint information. For example, when the value related to the third acquisition state does not correspond to a specific value, the controller 430 may display information for requesting a touch input to acquire fingerprint information through the display 420 .

When an additional touch input is received in response to the provision of information, the controller 430 may check the fourth acquisition state by assigning a weight according to the type of the touch input. The controller 430 may check whether a specific condition is satisfied by adding up the fourth acquisition state and the third acquisition state. When a specific condition is satisfied, the controller 430 may register authentication information using the previously confirmed fingerprint information frame and the fingerprint information frame corresponding to the additional touch input.

If a specific condition is not satisfied even when an additional touch input is received, the controller 430 may provide information requesting the touch input again.

Meanwhile, in the above-described embodiment, a case where a specific condition corresponds to a specific value is illustrated, but the present invention is not limited thereto and may include a case where the specific condition is equal to or greater than a specific value.

In addition, although the unit of the acquisition state or the unit of weight is not separately specified in the above-described embodiment, the unit of the acquisition state or the unit of weight may be expressed as % in the embodiment. However, the embodiments of the present specification are not limited to these examples.

5 is a flowchart of each step of a method for controlling an electronic device according to an embodiment of the present specification. Of course, each step of the method illustrated in FIG. 5 may be performed in a different order from that illustrated in the drawings in some cases.

Referring to FIG. 5 , the electronic device may identify a first touch input set and a second touch input set ( 510 ). The first touch input set may include at least one touch input in which a position of a fingerprint corresponding to a sensor is fixed in response to a touch. Also, the touch input corresponding to the first touch input set may include maintaining the position of at least a part of the fingerprint while the touch is applied.

For example, the first set of touch inputs may include one touch input applied in response to the first area of the user's fingerprint being in contact with the sensor. The second touch input set may include at least one touch input in which a position of a fingerprint corresponding to a sensor is changed in response to a touch. For example, the first set of touch inputs may include a plurality of touch inputs applied in response to each of the plurality of regions of the user's fingerprint in contact with the sensor.

In an embodiment, the first set of touch inputs may include a touch input (eg, a tap input) in which at least some of the fingerprints in contact with the sensor are fixed, and in the second set of touch inputs, the area of the fingerprint in contact with the sensor changes A touch input (eg, a drag input) may be included.

The electronic device may check authentication information corresponding to the user based on the first fingerprint information set corresponding to the first touch input set and the second fingerprint information set corresponding to the second touch input set ( 520 ).

The first fingerprint information set may include a fingerprint information frame corresponding to at least one touch input included in the first touch input set. For example, the position of the fingerprint is fixed by a touch input included in the first touch input set, and accordingly, fingerprint information of at least a portion of the fingerprints received by the sensor is maintained within the same range. Each of the fingerprint information included in may include one fingerprint information frame.

The second fingerprint information set may include a fingerprint information frame corresponding to at least one touch input included in the second touch input set. For example, since the position of a fingerprint varies in a touch input included in the second touch input set, each of the fingerprint information included in the second fingerprint information set may include two or more fingerprint information frames.

In an embodiment, the fingerprint information frame may include information in the form of an image. For example, the fingerprint information frame may include an image of a fingerprint obtained by a sensor, but is not limited thereto.

The electronic device may register authentication information corresponding to the user based on the fingerprint information frame included in the first fingerprint information set and the second fingerprint information set. Registration of authentication information may include a process of registering information about a user who is an authentication target before using a user authentication function using a sensor.

In addition, in an embodiment, the first touch input set and the second touch input set may be received regardless of an order, and inputs included in each set may be alternately received according to a user's input method.

Although not specifically illustrated, in an embodiment, the electronic device may perform an authentication procedure related to a corresponding user in preparation for authentication information and fingerprint information acquired through a sensor in a subsequent authentication situation based on the authentication information. In this regard, since it is easy for those skilled in the art, detailed description will be omitted.

6 is a flowchart illustrating in more detail some steps of a method for controlling an electronic device according to an embodiment of the present specification. Specifically, FIG. 6 is a detailed diagram of an example of step 520 of FIG. 5 .

Referring to FIG. 6 , the electronic device may check an acquisition state of authentication information based on reception of the first touch input set and the second touch input set ( 610 ). The electronic device determines the acquisition state of authentication information according to a fingerprint information frame included in a first fingerprint information set corresponding to the first touch input set and a fingerprint information frame included in a second fingerprint information set corresponding to the second touch input set. can increase

Here, the acquisition state of the authentication information increased according to the fingerprint information frame included in the first fingerprint information set and the acquisition state of the authentication information increased according to the fingerprint information frame included in the second fingerprint information set may be different.

For example, the acquisition state of the authentication information, which is increased according to the fingerprint information frame included in the first fingerprint information set, may increase based on the first value, and is increased according to the fingerprint information frame included in the second fingerprint information set. The acquisition state of the authentication information may increase based on the second value.

According to an embodiment, the first value corresponds to a weight applied to the number of fingerprint information frames included in the first set of fingerprint information, and the second value is applied to the number of fingerprint information frames included in the second set of fingerprint information. It can respond to weights. In this case, the first value may be referred to as a first weight, and the second value may be referred to as a second weight, but the present embodiment is not limited to these terms.

The electronic device may display the acquisition status of the authentication information on the display ( 620 ). The electronic device may display an acquisition state of authentication information confirmed using the first fingerprint information set and the second fingerprint information set on the display. A specific example related thereto may refer to FIG. 9 or FIG. 10 .

7 is a flowchart illustrating in more detail another example of some steps of a method for controlling an electronic device according to an embodiment of the present specification. Specifically, FIG. 7 is a detailed view of another example of step 520 of FIG. 5 .

Referring to FIG. 7 , the electronic device may check a first acquisition state of authentication information based on a first weight and the number of fingerprint information frames included in the first fingerprint information set ( 710 ). Specifically, the electronic device may check the first acquisition state of the authentication information by multiplying the first weight by the number of fingerprint information frames included in the first fingerprint information set.

For example, when the first weight is 7 and the number of fingerprint information frames included in the first fingerprint information set is one, the electronic device may identify the first acquisition state as 7 .

In an embodiment, the first weight may be a value predetermined by a touch input related to the first set of fingerprint information. More specifically, when the first fingerprint information set is a tap input that is a touch input for a specific point, the number of fingerprint information frames required for generating authentication information to be registered in a sensor included in the electronic device is preset to 15. may have been

In this case, in response to a tap input being applied to the sensor 15 times, 15 fingerprint information frames must be obtained so that accurate authentication information can be registered in the sensor. Based on the required number of such fingerprint information frames, the first weight may be determined as a value corresponding to 100/15 (or a value rounded off from 100/15).

The electronic device may check the second acquisition state of the authentication information based on the second weight and the number of fingerprint information frames included in the second fingerprint information set (S720). Specifically, the electronic device may check the second acquisition state of the authentication information by multiplying the second weight by the number of fingerprint information frames included in the second fingerprint information set.

For example, when the first weight is 2 and the number of fingerprint information frames included in the second fingerprint information set is 30, the electronic device may identify the second acquisition state as 60.

In an embodiment, the second weight may be a value predetermined by a touch input related to the second set of fingerprint information. More specifically, when the second fingerprint information set is a drag input that is a touch input for moving a plurality of points, the number of fingerprint information frames required for generating authentication information to be registered in a sensor included in the electronic device is 45. It may be predefined.

However, in some cases, when a drag input is applied, the sensor may acquire a fingerprint information frame at a specific time interval. Based on this, the drag input must be maintained for a time for which 45 fingerprint information frames are acquired so that the correct authentication information is not transmitted to the sensor. can be registered. Based on the required number of such fingerprint information frames, the third weight may be determined as a value corresponding to 100/45 (or a value rounded off from 100/45).

According to an embodiment, steps 710 and 720 may be performed irrespective of the order. Also, in some cases, the number of fingerprint information frames associated with each of

steps

710 and 720 may be determined based on the resolution. Specifically, a smaller number of fingerprint information frames may be required as the resolution increases.

For example, the number of fingerprint information frames required for verification of authentication information in relation to the first touch input may be 15 when the resolution corresponds to the first value, and the resolution is set to the second value (the second value is lower than the first value) may be 20. For another example, the number of fingerprint information frames required for verification of authentication information in relation to the second touch input may be 45 when the resolution corresponds to the first value, and when the resolution corresponds to the second value. can be 55.

The electronic device may check the third acquisition state based on the first acquisition state and the second acquisition state ( 730 ). In an embodiment, the electronic device may determine the third acquisition state by combining the first acquisition state and the second acquisition state.

For example, when the first acquisition state is 7 and the second acquisition state is 60, the electronic device may check the third acquisition state as 67 by adding up 7 and 60.

The electronic device may determine whether the third acquisition state satisfies a specific condition ( S740 ). The specific condition may include, for example, a condition that the value indicated by the third acquisition state corresponds to or is a specific value.

When the third acquisition state satisfies a specific condition, the electronic device may register authentication information corresponding to the user ( 750 ). When the third acquisition state satisfies a specific condition, the electronic device may generate authentication information based on the first fingerprint information set and the second fingerprint information set and register it as authentication information corresponding to the user.

Registration of authentication information may include an operation of first registering a user to use a user authentication function.

In an embodiment, when the third acquisition state satisfies a specific condition, the electronic device generates fingerprint information by combining a fingerprint information frame included in the first fingerprint information set and a fingerprint information frame included in the second fingerprint information set, This can be registered as authentication information. However, the method of registering authentication information is not limited thereto, and since it is easy for a person skilled in the art to generate authentication information, a detailed description thereof will be omitted.

When the third acquisition state does not satisfy a specific condition, the electronic device may provide information requesting fingerprint information ( 760 ). The information requesting fingerprint information may include, for example, content including text requesting fingerprint information, but is not limited thereto.

Although not shown, in an embodiment, when a touch input is applied to the sensor in response to a request for fingerprint information, the electronic device determines whether the touch input is a touch input in which a position of a fingerprint corresponding to the sensor is fixed or a touch input in which a position of a fingerprint is variable. recognition can be confirmed. The electronic device may check the fourth acquisition state by using a weight (eg, a first weight or a second weight) corresponding to the number of fingerprint information frames and the shape of the touch input. The electronic device may perform step 750 or step 760 according to whether an acquisition state derived by summing the fourth acquisition state and the third acquisition state satisfies a specific condition.

Referring to FIG. 8 , the tip of the user's finger 820 at which the fingerprint is located may contact the sensor 810 . The sensor 810 is included in the electronic device according to the embodiment of the present specification, and the touch input set may be identified by the electronic device based on the finger 820 being in contact with the sensor 810 .

A touch input in which a position of a fingerprint corresponding to a sensor is variable in response to a touch may appear in various forms. For example, the touch input may appear in the form of moving in a clockwise direction as shown.

In this case, the fingerprint region of the finger 820 in contact with the sensor 810 may vary, and accordingly, at least one touch input in which the position of the fingerprint corresponding to the sensor is changed may be identified by the electronic device.

The electronic device may identify a fingerprint information set corresponding to each of the at least one touch input, and may identify authentication information corresponding to the user based thereon.

Depending on the user's embodiment, the input in the form shown in FIG. 8 may not appear continuously. That is, the user may release the contact during the input process, or the input may be applied to the sensor 810 in the form of a tap input rather than a drag input, but a clockwise movement of the finger 820 .

According to an embodiment of the present specification, a plurality of types of touch input, that is, a tap input and a drag input can be checked, so that acquisition of a fingerprint information frame and verification of authentication information can be performed more quickly and efficiently.

9 and 10 are diagrams illustrating an example of a screen for an acquisition state of authentication information provided by an electronic device according to an embodiment of the present specification.

Specifically, FIG. 9 shows a screen showing a change in color or contrast of at least a partial area of content representing a fingerprint according to a state in which authentication information is obtained in response to movement of an input when an input of the form shown in FIG. 8 is applied. can

That is, according to FIG. 9 , when the acquisition state of the fingerprint information frame gradually increases, the screens may be provided in the order of

reference numerals

9a, 9b, 9c, and 9d.

When the authentication information is registered because the acquisition state of the authentication information satisfies a specific condition, the electronic device may provide a screen as shown in FIG. 10 .

Although FIG. 10 shows an example in which the text 'OK' is displayed to mean that the acquisition of authentication information has been completed, the present invention is not limited thereto. For example, the electronic device may provide a screen in which text is omitted or may provide a screen in which other text (eg, completion) is displayed.

An electronic device and a control method according to an embodiment of the present specification determine an acquisition state of a fingerprint information frame in consideration of a type of a touch input, so that different types of touch inputs can be used to check authentication information. You can effectively check the authentication information.

The above description is merely illustrative of the technical idea of the present specification, and various modifications and variations will be possible without departing from the essential quality of the present specification by those skilled in the art to which the present specification belongs. Accordingly, the embodiments disclosed in the present specification are for explanation rather than limiting the technical spirit of the present specification, and the scope of the technical spirit of the present specification is not limited by these embodiments. The protection scope of the present specification should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present specification.

Claims

In an electronic device,

a sensor for detecting fingerprint information; and

including a control unit;

The control unit is

A first touch input set including at least one touch input in which at least a portion of a position of a fingerprint corresponding to the sensor is fixed in response to a touch, and at least one in which a position of a fingerprint corresponding to the sensor is variable in response to a touch identifying a second set of touch inputs comprising touch inputs;

identifying authentication information corresponding to the user based on a first set of fingerprint information corresponding to the first set of touch inputs and a set of second fingerprint information corresponding to the set of second touch inputs;

electronic device.
According to claim 1,

The control unit is

Checking one fingerprint information frame in each touch input included in the first touch input set;

Checking two or more fingerprint information frames in each touch input included in the second touch input set

electronic device.
According to claim 1,

The control unit is

check an acquisition state of the authentication information based on the reception of the first touch input set and the second touch input set;

The acquisition state of the authentication information increases according to a fingerprint information frame included in the first fingerprint information set and a fingerprint information frame included in the second fingerprint information set.

electronic device.
4. The method of claim 3,

The acquisition state of the authentication information increased according to the fingerprint information frame included in the first fingerprint information set and the acquisition state of the authentication information increased according to the fingerprint information frame included in the second fingerprint information set are different

electronic device.
4. The method of claim 3,

The electronic device further includes a display,

The control unit is

displaying the acquisition status of the authentication information on the display

electronic device.
4. The method of claim 3,

The control unit is

check a first acquisition state of the authentication information based on a first weight and the number of fingerprint information frames included in the first fingerprint information set;

check a second acquisition state of the authentication information based on a second weight and the number of fingerprint information frames included in the second set of fingerprint information;

check a third acquisition state of the authentication information based on the first acquisition state and the second acquisition state;

Registering authentication information corresponding to the user when the third acquisition state satisfies a specific condition

electronic device.
7. The method of claim 6,

The first weight is determined based on the number of fingerprint information frames related to registration of authentication information based on a touch input for a specific point and the size of the sensor,

The second weight is determined based on the number of fingerprint information frames related to registration of authentication information based on a touch input moving a plurality of points and the size of the sensor.

electronic device.
7. The method of claim 6,

The first weight has a higher value than the second weight.

electronic device.
According to claim 1,

The first touch input set and the second touch input set are received irrespective of an order

electronic device.
7. The method of claim 6,

The control unit is

When the third acquisition state does not satisfy the specific condition, providing information requesting fingerprint information

electronic device.
A method of controlling an electronic device including a sensor for detecting fingerprint information, the method comprising:

A first touch input set including at least one touch input in which at least a portion of a position of a fingerprint corresponding to the sensor is fixed in response to a touch, and at least one in which a position of a fingerprint corresponding to the sensor is variable in response to a touch identifying a second set of touch inputs comprising touch inputs;

checking authentication information corresponding to the user based on a first set of fingerprint information corresponding to the first set of touch inputs and a set of second fingerprint information corresponding to the set of second touch inputs

A method of controlling an electronic device.
12. The method of claim 11,

The step of verifying the authentication information,

Checking one fingerprint information frame in each touch input included in the first touch input set, and checking two or more fingerprint information frames in each touch input included in the second touch input set

A method of controlling an electronic device.
12. The method of claim 11,

The step of verifying the authentication information,

Confirming the acquisition status of the authentication information based on the reception of the first touch input set and the second touch input set,

The acquisition state of the authentication information increases according to a fingerprint information frame included in the first fingerprint information set and a fingerprint information frame included in the second fingerprint information set.

A method of controlling an electronic device.
14. The method of claim 13,

The acquisition state of the authentication information increased according to the fingerprint information frame included in the first fingerprint information set and the acquisition state of the authentication information increased according to the fingerprint information frame included in the second fingerprint information set are different

A method of controlling an electronic device.
14. The method of claim 13,

The electronic device further includes a display,

The step of verifying the authentication information,

Further comprising the step of displaying the acquisition status of the authentication information on the display

A method of controlling an electronic device.
14. The method of claim 13,

The step of verifying the authentication information,

Check the first acquisition state of the authentication information based on the first weight and the number of fingerprint information frames included in the first set of fingerprint information, and check the second weight and the fingerprint information frame included in the second set of fingerprint information. checking a second acquisition state of the authentication information based on the number;

check a third acquisition state of the authentication information based on the first acquisition state and the second acquisition state;

and registering authentication information corresponding to the user when the third acquisition state satisfies a specific condition

A method of controlling an electronic device.
17. The method of claim 16,

The first weight is determined based on the number of fingerprint information frames related to registration of authentication information based on a touch input for a specific point and the size of the sensor,

The second weight is determined based on the size of the sensor and the number of fingerprint information frames related to registration of authentication information based on an input for moving a plurality of points.

A method of controlling an electronic device.
17. The method of claim 16,

The first weight has a higher value than the second weight.

A method of controlling an electronic device.
12. The method of claim 11,

The first touch input set and the second touch input set are received irrespective of an order

A method of controlling an electronic device.
17. The method of claim 16,

The step of verifying the authentication information,

If the third acquisition state does not satisfy the specific condition, further comprising the step of providing information requesting fingerprint information

A method of controlling an electronic device.