WO2015030500A1 - 전자 장치 및 전자 장치의 서명 입력 처리 방법 - Google Patents
전자 장치 및 전자 장치의 서명 입력 처리 방법 Download PDFInfo
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- WO2015030500A1 WO2015030500A1 PCT/KR2014/008019 KR2014008019W WO2015030500A1 WO 2015030500 A1 WO2015030500 A1 WO 2015030500A1 KR 2014008019 W KR2014008019 W KR 2014008019W WO 2015030500 A1 WO2015030500 A1 WO 2015030500A1
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- data
- handwritten
- electronic device
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/36—User authentication by graphic or iconic representation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/30—Writer recognition; Reading and verifying signatures
- G06V40/37—Writer recognition; Reading and verifying signatures based only on signature signals such as velocity or pressure, e.g. dynamic signature recognition
- G06V40/394—Matching; Classification
Definitions
- Various embodiments of the present disclosure relate to an electronic device and a signature input processing method of the electronic device.
- the touch screen serves as a display unit for displaying a screen of the electronic device, and also serves as an input module that senses a user's touch and receives input data.
- the touch screen may detect a user's body such as a finger touch or an electronic pen touch through a touch panel implemented in a capacitive type or a resistive film type.
- the user's handwriting may be converted into an image or a document and stored.
- a display for example, a touch screen of the electronic device may be activated to check the contents input by the user.
- a research has been conducted on a method of verifying authority by comparing and recognizing a personal signature in a handwritten form, which has been used in a paper document, by using an electronic pen or a finger.
- the method of storing and using signature recognition data does not utilize various information related to the signature creation environment.
- Various embodiments of the present invention when generating signature recognition data, do not use only the stored data of the number of trained training sessions, and accumulate additional training data based on pre-stored training data according to a result of authentication of the user signature data. It can be utilized.
- various embodiments of the present disclosure may recognize information more accurately, for example, by storing information that distinguishes a user signature recognition state when storing signature training data, and reflecting and authenticating it when verifying signature.
- various embodiments of the present disclosure may perform more accurate recognition, for example, by adjusting the signature recognition criteria according to the accuracy of signature recognition data additionally input during signature authentication.
- various embodiments of the present disclosure may increase signature recognition rate by utilizing a variety of information related to a signature creation environment in a method of storing and using signature recognition data, for example.
- various embodiments of the present disclosure provide an electronic device and a signature input processing method of the electronic device for improving the accuracy of signature verification for a handwriting input.
- a signature input processing method of an electronic device may include registering at least one handwritten signature input by a user input means on an electronic device as reference signature data; Upon inputting a handwritten signature by the user input means, authenticating the inputted handwritten signature by comparing the inputted handwritten signature data with the registered reference signature data; And when the inputted handwritten signature is normally authenticated as a result of the authentication, additionally registering handwritten signature data of the inputted handwritten signature as reference signature data.
- an electronic device may include a storage unit which stores at least one registered handwritten signature as reference signature data; A touch screen for receiving a handwritten signature; And when inputting a handwritten signature by a user input means, compares the inputted handwritten signature data with the registered reference signature data to authenticate the inputted handwritten signature, and if the inputted handwritten signature is normally authenticated as the result of the authentication, And a controller configured to additionally register handwritten signature data of the input handwritten signature as reference signature data.
- a signature input processing method of an electronic device may include registering at least one handwritten signature input by a user input means on an electronic device as reference signature data; Registering the at least one signature related information associated with the handwritten signature when registering the handwritten signature; And authenticating the inputted handwritten signature by comparing the inputted handwritten signature data with the registered handwritten signature data when inputting a handwritten signature for signature authentication, wherein the authenticating of the at least one signature is performed.
- the relevant information can be further considered and authenticated.
- an electronic device may include a storage unit which stores at least one registered handwritten signature as reference signature data; A touch screen for receiving a handwritten signature; And a control unit which, when inputting a handwritten signature by a user input means, compares the inputted handwritten signature data with the registered handwritten signature data and processes the authentication of the inputted handwritten signature.
- a storage unit which stores at least one registered handwritten signature as reference signature data
- a touch screen for receiving a handwritten signature
- a control unit which, when inputting a handwritten signature by a user input means, compares the inputted handwritten signature data with the registered handwritten signature data and processes the authentication of the inputted handwritten signature.
- One signature-related information can be considered and authenticated.
- various characteristics of the signature may be secured, the signature recognition rate may be increased, and the signature recognition rate of others may be low.
- FIG. 1 is a diagram illustrating a network environment according to an embodiment of the present invention.
- FIG. 2 is a block diagram illustrating a structure of a signature processing module according to various embodiments of the present disclosure.
- FIG. 3 is a flowchart illustrating a signature registration and signature verification procedure according to various embodiments of the present disclosure.
- FIG. 4 is a flowchart illustrating a procedure of registering signature reference data according to various embodiments of the present disclosure.
- FIG. 5 is a flowchart illustrating a signature authentication procedure according to various embodiments of the present disclosure.
- FIG. 6 is a flowchart illustrating a signature recognition criterion adjusting procedure according to various embodiments of the present disclosure.
- FIG. 7 is a block diagram illustrating a structure of a signature processing module according to various embodiments of the present disclosure.
- FIG. 8 is a flowchart illustrating a signature registration procedure according to various embodiments of the present disclosure.
- FIG. 9 is a flowchart illustrating a signature authentication procedure according to various embodiments of the present disclosure.
- FIGS. 10A, 10B, and 10C are diagrams illustrating examples of signature registration in an electronic device according to various embodiments of the present disclosure.
- FIG. 11 is a diagram illustrating an example of a signature input screen by a hand in an electronic device according to various embodiments of the present disclosure.
- FIG. 12 is a diagram illustrating an example of a signature input screen by an electronic pen in an electronic device according to various embodiments of the present disclosure.
- FIG. 13A and 13B illustrate verification of signature related information according to various embodiments of the present disclosure.
- FIG. 14 is a diagram illustrating verification of signature location information as signature related information according to various embodiments of the present disclosure.
- 15 is a block diagram illustrating a detailed structure of an electronic device according to various embodiments of the present disclosure.
- an expression such as “or” or “at least one of A or / and B” includes any and all combinations of words listed together.
- each of “A or B” or “at least one of A or / and B” may include A, may include B, or may include both A and B.
- Expressions such as “first,” “second,” “first,” or “second,” and the like used in various embodiments of the present disclosure may modify various elements of the various embodiments, but limit the elements. I never do that.
- the above expressions do not limit the order and / or importance of the corresponding elements.
- the above expressions may be used to distinguish one component from another.
- both a first user device and a second user device are user devices and represent different user devices.
- the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.
- a component When a component is said to be “connected” or “connected” to another component, the component may or may not be directly connected to or connected to the other component. It is to be understood that there may be new other components between the other components. On the other hand, when a component is referred to as being “directly connected” or “directly connected” to another component, it will be understood that there is no new other component between the component and the other component. Should be able.
- An electronic device may be a device including a touch screen, but is not limited thereto.
- the electronic device may be a smartphone, a tablet personal computer, a mobile phone, a video phone, an e-book reader, a desktop personal computer, a laptop.
- HMD head-mounted-device
- the electronic device may be a smart home appliance including a touch screen.
- Smart home appliances are, for example, electronic devices such as televisions, digital video disk (DVD) players, audio, refrigerators, air conditioners, cleaners, ovens, microwave ovens, washing machines, air purifiers, set-top boxes, TVs. It may include at least one of a box (eg, Samsung HomeSync TM, Apple TV TM, or Google TV TM), game consoles, electronic dictionary, electronic key, camcorder, or electronic photo frame.
- an electronic device may include various medical devices (eg, magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), computed tomography (CT), an imager, an ultrasound device, etc.), a navigation device, and a GPS receiver ( global positioning system receivers, event data recorders (EDRs), flight data recorders (FDRs), automotive infotainment devices, marine electronics (e.g. marine navigation systems and gyro compasses), avionics, security At least one of a device, a vehicle head unit, an industrial or household robot, an automatic teller's machine (ATM) of a financial institution, or a point of sales (POS) of a store.
- MRA magnetic resonance angiography
- MRI magnetic resonance imaging
- CT computed tomography
- an imager an ultrasound device
- GPS receiver global positioning system receivers
- EDRs event data recorders
- FDRs flight data recorders
- automotive infotainment devices e.g. marine navigation systems and gyro compasses
- an electronic device may be part of a furniture or building / structure including a touch screen, an electronic board, an electronic signature receiving device, a projector, or various It may include at least one of a measuring device (eg, water, electricity, gas, or radio wave measuring device).
- a measuring device eg, water, electricity, gas, or radio wave measuring device.
- An electronic device according to various embodiments of the present disclosure may be a combination of one or more of the aforementioned various devices.
- an electronic device according to various embodiments of the present disclosure may be a flexible device.
- the electronic device according to various embodiments of the present disclosure is not limited to the above-described devices.
- the training data stored for a predetermined number of times is used for recognition, but also the user signature data input at the time of authentication for pre-stored authentication. It can be used by accumulating in reference signature data. Accordingly, the characteristics of various signatures can be secured, the signature recognition rate can be increased, and the signature recognition rate of others can be lowered.
- Various embodiments of the present disclosure may include a database for storing signature recognition data, and may include performing a signature recognition training check and a signature recognition and comparison procedure.
- various embodiments of the present disclosure may further store gripping status information at the time of signature, input tool information at the time of signature, and the like as information for distinguishing a signature recognition state, and may be used as signature related information for signature authentication.
- a user may perform a process of registering his signature in order to use signature recognition.
- Training data may be input a predetermined number of times by a signature recognition training test procedure set in the signature registration process. For example, when the number of preset training data inputs is three, the training data input three times may be stored as the reference signature data.
- the information for distinguishing the signature recognition state may be additionally stored to increase the accuracy of the signature authentication.
- the information for distinguishing the signature recognition state may include a holding state of a signature tool, a type of signature tool, and the like, but the present invention is not limited thereto.
- the grasp state classification information of the signing user may be used when setting up the signature recognition training of the user or when recognizing the signature of the user.
- the gripping state may be classified into a state in which the user grips or does not grip the electronic device.
- an input tool upon inputting a signature may be classified and reflected during authentication, thereby realizing more accurate signature recognition.
- the signature data when the user inputs by hand and the signature data when the user inputs with the electronic pen may be displayed separately, and reflected in the signature authentication.
- various embodiments of the present invention when generating and authenticating data for signature recognition, do not simply authenticate using only pre-stored training signature data, but use various information related to the signature creation environment as signature related information.
- the signature recognition rate can be increased.
- information related to the signature creation environment may include hover data, signature time, stroke length, stroke time, aspect ratio of the signature area, area for each time, total area, average comparison of signature coordinates, and gripping state at the time of signature input.
- the 'electronic pen' that may be used for signature may be any device including a conductor recognizable by the electronic device in a pen-type device.
- the electronic pen may generate an electrical signal by itself and may receive the same from the electronic device, or may recognize the electronic pen to recognize at least a portion of the electronic pen without generating the electrical signal.
- the electronic pen may be implemented in various forms as well as a pen, and the electronic pen applied to various embodiments of the present invention is not limited to a specific form.
- the term user used in various embodiments may refer to a person who uses an electronic device or a device (eg, an artificial intelligence electronic device) that uses an electronic device.
- the electronic device 101 may include a bus 110, a processor 120, a memory 130, an input / output interface 140, a display 150, a communication interface 160, or a signature processing module 170. It may include at least one configuration of).
- the bus 110 may be a circuit connecting the aforementioned components to each other and transferring communication (eg, a control message) between the aforementioned components.
- the processor 120 may include, for example, the above-described other components (eg, the memory 130, the input / output interface 140, the display 150, and the communication interface) through the bus 110. 160, or the signature processing module 170, etc.), decode the received command, and execute an operation or data processing according to the decoded command.
- the above-described other components eg, the memory 130, the input / output interface 140, the display 150, and the communication interface
- the bus 110. 160 or the signature processing module 170, etc.
- the memory 130 may include the processor 120 or other components (eg, the input / output interface 140, the display 150, the communication interface 160, or the signature processing module 170). Instructions or data received from or generated by the processor 120 or other components.
- the memory 130 may include, for example, programming modules such as a kernel 131, middleware 132, an application programming interface (API) 133, or an application 134. Each of the aforementioned programming modules may be composed of software, firmware, hardware, or a combination of two or more thereof.
- the kernel 131 is a system resource (e.g., used to execute an operation or function implemented in the other programming modules, for example, the middleware 132, the API 133, or the application 134).
- the bus 110, the processor 120, the memory 130, etc. may be controlled or managed.
- the kernel 131 may provide an interface that allows the middleware 132, the API 133, or the application 134 to access and control or manage individual components of the electronic device 101. have.
- the middleware 132 may serve as an intermediary to allow the API 133 or the application 134 to communicate with the kernel 131 to exchange data. Further, the middleware 132 may be associated with work requests received from the application 134, for example, in at least one of the applications 134. Control the work request (eg, scheduling or load balancing) using a method such as assigning a priority to use the bus 110, the processor 120, the memory 130, or the like. Can be.
- the API 133 is an interface for the application 134 to control a function provided by the kernel 131 or the middleware 132. For example, file control, window control, image processing, character control, or the like. It may include at least one interface or function (eg, an instruction) for.
- the application 134 may be an SMS / MMS application, an email application, a calendar application, an alarm application, a health care application (eg, an application for measuring an exercise amount or blood sugar) or an environment information application ( For example, an application that provides barometric pressure, humidity, or temperature information). Additionally or alternatively, the application 134 may be an application related to the exchange of information between the electronic device 101 and an external electronic device (eg, the electronic device 104). Applications related to the information exchange may include, for example, a notification relay application for delivering specific information to the external electronic device, or a device management application for managing the external electronic device. Can be.
- the notification delivery application may be configured to receive notification information generated by another application of the electronic device 101 (eg, an SMS / MMS application, an email application, a health care application, or an environmental information application). And to the device 104. Additionally or alternatively, the notification delivery application may, for example, receive notification information from an external electronic device (eg, the electronic device 104) and provide it to the user.
- the device management application may, for example, perform a function (eg, the external electronic device itself (or some component part) of at least a part of an external electronic device (eg, the electronic device 104) in communication with the electronic device 101. Turn on / turn off or adjust the brightness (or resolution) of the display), an application running on the external electronic device or a service provided by the external electronic device (eg, a call service or a message service) (eg, Install, delete, or update).
- a function eg, the external electronic device itself (or some component part) of at least a part of an external electronic device (eg, the electronic device 104) in communication
- the application 134 may include an application designated according to an attribute (eg, a type of electronic device) of the external electronic device (eg, the electronic device 104).
- an attribute eg, a type of electronic device
- the application 134 may include an application related to music playback.
- the external electronic device is a mobile medical device
- the application 134 may include an application related to health care.
- the application 134 may include at least one of an application designated to the electronic device 101 or an application received from an external electronic device (eg, the server 106 or the electronic device 104). .
- the input / output interface 140 may receive a command or data input from a user through an input / output device (eg, a sensor, a keyboard, or a touch screen), for example, the processor 120 or the memory through the bus 110. 130, the communication interface 160, or the signature processing module 170.
- the input / output interface 140 may provide data about the user's touch input through the touch screen to the processor 120.
- the input / output interface 140 may be received from, for example, the processor 120, the memory 130, the communication interface 160, or the signature processing module 170 via the bus 110.
- Command or data may be output through the input / output device (eg, a speaker or a display).
- the input / output interface 140 may output voice data processed by the processor 120 to a user through a speaker.
- the display 150 may display various types of information (eg, multimedia data or text data) to the user.
- the display 150 may display an input pad capable of inputting various characters, numbers, symbols, etc. in an input window or an input window on a screen in various ways.
- the communication interface 160 may connect communication between the electronic device 101 and an external device (eg, the electronic device 104 or the server 106).
- the communication interface 160 may be connected to the network 162 through wireless or wired communication to communicate with the external device.
- the wireless communication may include, for example, wireless fidelity (WiFi), Bluetooth (BT), near field communication (NFC), global positioning system (GPS) or cellular communication (eg, LTE, LTE-A, CDMA, WCDMA, UMTS, WiBro or GSM, etc.).
- the wired communication may include, for example, at least one of a universal serial bus (USB), a high definition multimedia interface (HDMI), a reduced standard 232 (RS-232), or a plain old telephone service (POTS).
- USB universal serial bus
- HDMI high definition multimedia interface
- RS-232 reduced standard 232
- POTS plain old telephone service
- the network 162 may be a telecommunications network.
- the communication network may include at least one of a computer network, the Internet, the Internet of things, and a telephone network.
- a protocol eg, a transport layer protocol, a data link layer protocol, or a physical layer protocol
- a protocol for communication between the electronic device 101 and an external device may include an application 134, an application programming interface 133, It may be supported by at least one of the middleware 132, the kernel 131, or the communication interface 160.
- the electronic device 101 includes a communication interface 160 to communicate with an external electronic device 104, a server 106, or the like through the network 120, but according to various embodiments of the present disclosure, Accordingly, the electronic device 101 may be implemented to operate independently in the electronic device 101 without a separate communication function.
- the server 106 drives the electronic device 101 by performing at least one operation (or function) among operations (or functions) implemented in the electronic device 101.
- the server 106 may include a signature processing server module (not shown) capable of supporting the signature processing module 170 implemented in the electronic device 101.
- the signature processing server module may include at least one component of the signature processing module 170 to perform (or perform) at least one of operations (or functions) performed by the signature processing module 170. You can also act.
- the input data may be transmitted to the server 106 through the network 162, and the server 106 may transmit the signature data to a signature processing server module (not shown). Authentication of the input signature data can be performed.
- the server 106 may transmit the authentication result back to the electronic device 101 through the network 162.
- the signature processing module 170 may include at least some of information obtained from other components (eg, the processor 120, the memory 130, the input / output interface 140, the communication interface 160, etc.). Can be processed and provided to the user in various ways.
- the signature processing module 170 may detect a user input for activating the electronic device 100 having an off screen or locked state or generate a user input for an object according to various embodiments of the present disclosure.
- the user signature input data is analyzed to perform signature verification. That is, the signature processing module 170 may perform an operation for authenticating a user who wants to use the electronic device 100 through authentication of an input handwritten signature.
- the signature processing module 170 may process to receive and store at least one signature reference data to be used for signature authentication through a signature registration procedure.
- the signature verification subject may include an object or an item, and the object or item (or a function item) may be displayed or displayed on the touch screen of the electronic device 100.
- the object or item represents at least one of an application, a certificate, a menu, a document, a widget, a picture, a video, an email, an SMS message, and an MMS message, and is generated, selected, executed, deleted, canceled, and stored by a user input means. And can be changed.
- the object or item may also be used to mean a button, an icon (or a shortcut icon), a thumbnail image, or a folder in which at least one object is stored in the electronic device.
- the shortcut icon is an image displayed on the touch screen of the electronic device 100 for quick execution of a call, contact, menu, etc., which is basically provided in each application or the electronic device 100, and a command or selection for executing the shortcut icon is performed. Once entered, the application can be launched.
- any object that needs to restrict access to personal information in the electronic device may correspond to a verification object.
- an allowable threshold for determining the authenticity of a handwritten signature may vary according to a verification target, and a signature recognition criterion (eg, based on at least one condition in the handwriting input environment) may be dynamically changed.
- An allowable threshold can be adjusted.
- a signature recognition criterion eg, an allowance threshold
- a signature processing module 170 may be dynamically adjusted in consideration of at least one condition in such a handwriting input environment. Detailed operations of the signature processing module 170 will be described later.
- the signature processing module 170 is illustrated as a separate module from the processor 120 in FIG. 1, at least a part of the signature processing module 170 may be included in the processor 120 or the display 150. In addition, the entire function of the signature processing module 170 may be implemented in the illustrated processor 120 or another processor or included in another module.
- the signature processing module 170 may include the processor 120.
- An example of the execution is performed in.
- At least one configuration included in the signature processing module 200 of FIG. 2 may be included in the signature processing module 170 or the processor 120 of FIG.
- the handwritten signature processing apparatus 200 may include a preprocessor 210, an input status checker 220, a signature registerer 230, a signature verifier 240, and a signature criterion.
- the controller 250 may include at least one configuration of the verification result processor 260 and the additional register 270.
- the handwritten signature processing apparatus 200 may further include a reference signature information database 280, a signature reference information database 290, and the like.
- the handwriting signature process performs an operation for registration of a reference signature and a verification operation for an input signature. Such operations may be performed by the processor 120 of FIG. 1.
- the preprocessor 210 When the image for the handwritten signature drawn on the touch screen is input, the preprocessor 210 performs preprocessing such as rotation and size adjustment. For example, the preprocessing unit 210 may perform a function of normalizing the input signature data according to a signature input time or a signature size through a preprocessing process.
- the signature registrar 230 may perform an operation for registering the reference signature data and may store feature values of attribute information used for handwriting signature verification in the reference signature information database 280.
- the reference signature information database 280 is a database in which the training data input when the user registers the handwriting signature is digitally imaged and stored.
- the reference signature information database 280 receives the user's own handwriting signature and refers to the trajectory of the font corresponding to the handwriting signature. Can be stored as signature data.
- the reference signature information database 280 may store at least one input state information (eg, grip information, input tool information, etc.) identified through the input state checking unit 220 together with the input reference signature data. .
- the signature register 230 receives a predetermined number (eg, three times) of a handwritten signature when registering the handwritten signature, and then calculates a distance between the inputted handwritten signatures.
- a reference threshold is determined by applying a first threshold reference value, and when the signature variation is greater than the predetermined criterion, the first threshold value is determined.
- the reference threshold is determined by applying a second threshold reference value that is greater than the threshold reference value.
- the preprocessor 210 inputs the handwritten signature data using the user input means.
- the signature verification unit 240 verifies the inputted signature data based on the reference signature data of the user stored in the reference signature information database 280.
- the signature verification unit 240 calculates a comparison result between the inputted handwritten signature data and the reference signature data.
- various signature verification algorithms can be applied.
- a dynamic time warping algorithm can be used.
- the dynamic time warping algorithm refers to an algorithm for arranging data to compare and accommodate a plurality of batch parameters for variable parallax.
- various methods other than the dynamic time warping algorithm may be applied according to various embodiments of the present disclosure.
- the signature verification unit 240 determines an allowance threshold in consideration of a verification target such as a service or a function where a user input is generated.
- the signature verification unit 250 may perform signature verification according to signature criteria information that may be adjusted according to various embodiments of the present disclosure.
- the signature verification unit 250 may adjust the signature by applying a reference threshold determined in consideration of the signature variation of the user.
- the allowable threshold value may be set differently according to the type of the user input means in addition to the verification target and the signature variation of the user.
- the acceptance threshold may be set differently depending on which user input means of the finger or the pen is used to input the handwritten signature.
- the adjustment range of the allowable threshold is relative to that of a different type of user input means. It can be set narrowly. As described above, the allowance threshold may vary depending on whether the type of the user input means is the same as when the handwritten signature is registered and when the handwritten signature is input. In these cases, the pen is used to enter the handwriting signature after the pen has been used to register the handwriting signature, the finger is used to register the handwriting signature after the pen has been used to enter the handwriting signature after the pen has been used to register the handwriting signature.
- each weight (w 1 , w 2 , w 3 ) applied to the pen, pen pressure, and pen type according to the handwritten signature input is set differently in each case.
- the signature verification unit 240 verifies the input signature data by referring to the reference signature information and the input state information stored in the reference signature information database 280, and according to various embodiments of the present disclosure, the signature reference information The signature data may be reflected in the database 290 so as to verify signature data.
- the signature verification unit 240 compares a feature between the inputted signature data and the reference signature data stored in the reference signature information database 280 to determine a numerical value (eg, similarity). Etc.) and verify the authenticity of the handwritten signature by comparing the calculated numerical value with the signature reference information.
- a numerical value eg, similarity
- the verification result processing unit 260 performs an operation according to the success or failure of the signature verification in the signature verification unit 240. If the signature verification fails, the verification result processor 260 may perform an operation such as outputting a notification message. If the signature verification is successful, the verification result processing unit 260 may perform an operation such as displaying or executing a verification target having a user input.
- the signature criteria adjusting unit 250 adjusts the signature criteria according to whether the input data is authenticated.
- the signature criteria information adjusted through the signature criteria adjuster 250 may be stored in the signature criteria information database 290.
- the additional register 270 transfers the input signature data to the training signature data registered during the basic signature registration process according to the determination of whether the signature verification is successful. Perform additional registration.
- each functional unit and module may mean a functional and structural combination of hardware for performing the technical idea of the embodiment of the present invention and software for driving the hardware.
- each functional unit may mean a logical unit of a predetermined code and a hardware resource for performing the predetermined code, and does not necessarily mean a physically connected code or a kind of hardware. It can be easily inferred by the average expert in the art of the embodiments of the invention.
- An electronic device may include a storage unit which stores at least one registered handwritten signature as reference signature data; An input unit to receive a handwritten signature; And when inputting a handwritten signature by a user input means, compares the inputted handwritten signature data with the registered reference signature data to authenticate the inputted handwritten signature, and if the inputted handwritten signature is normally authenticated as the result of the authentication, And a controller configured to additionally register handwritten signature data of the input handwritten signature as reference signature data.
- the controller determines whether the number of the registered reference signature data exceeds a preset number N S , and when the determination result does not exceed the number N S.
- the controller may additionally register the normally authenticated handwritten signature data as reference signature data.
- the controller may further authenticate in consideration of the type of the user input means for the input handwritten signature.
- the controller may further authenticate in consideration of a grip state of a user input means with respect to the input handwritten signature.
- the controller may determine whether the number of the registered reference signature data exceeds a predetermined number N C when the input writing signature is not normally authenticated as a result of the authentication. If it is determined that the preset number N C is not exceeded as a result of the determination, the signature recognition criteria for authenticating the input handwritten signature may be adjusted.
- FIG. 3 is a flowchart illustrating a signature registration and signature verification procedure according to various embodiments of the present disclosure.
- a signature to be used as reference signature data may be input.
- information related to the signature input may be registered together in accordance with various embodiments of the present disclosure.
- the information related to the signature input may include a user's grip state (eg, grip or the like) or an input tool (eg, a touch by an electronic pen or a touch by a finger).
- signature data for signature authentication may be input.
- DSP signature authentication mode
- FIG. 4 is a flowchart illustrating a reference signature registration procedure according to an embodiment of the present invention.
- a signature registration mode of operation 402 if a signature is input by a user input means (eg, a hand or an electronic pen) in operation 404, it is determined whether it is an input once in operation 406.
- operation 408 when the signature is initially input, the input signature is stored.
- the input signature is authenticated by comparing the signature entered at operation 410 with the first input signature or previously entered signatures. Authentication of the input signature may be implemented in various ways, and may be implemented to determine the similarity with the previously input signature data and to determine that the authentication is more than the threshold value. If the authentication is successful in operation 412, the signature data input in operation 414 is stored. If authentication of the input signature data succeeds more than a predetermined number N R (eg, three times) in operation 416, the registration procedure may be terminated in operation 418.
- N R eg, three times
- the electronic device 100 may activate the handwriting signature mode. For example, the electronic device 100 may detect a user input event such as a hovering event when the user input means approaches or is located close to the touch screen. The electronic device 100 may detect a hovering event and determine writing start of the user input means.
- a user input event such as a hovering event when the user input means approaches or is located close to the touch screen. The electronic device 100 may detect a hovering event and determine writing start of the user input means.
- the electronic device 100 activates the handwriting signature mode, and accordingly, the electronic device 100 can recognize the writing input of the user input means, thereby making the reference signature of the user input means. Detect input.
- the electronic device 100 determines whether a predetermined number of reference signatures has been input. If a predetermined number of reference signatures have not been entered, request re-entry of the reference signature and then proceed. Accordingly, when a predetermined number of reference signatures are input, the electronic device 100 may determine the permission threshold by calculating the distance between each reference signature after preprocessing the reference signature as described above.
- FIG. 5 is a flowchart illustrating a signature authentication procedure according to an embodiment of the present invention.
- authentication may be performed by comparing signature data input in operation 506 with previously stored training signature data.
- the authentication may be determined whether the number of reference signature data already stored in operation 510 exceeds a preset number N S. As a result of the determination, if the predetermined number N S is not exceeded, signature data input in operation 512 may be added to the database as training signature data. Subsequently, the signature authentication may be performed by considering the additional stored signature data as reference signature data.
- the electronic device 100 activates the handwriting signature mode of the electronic device 100 when writing of the user input means is started.
- the electronic device 100 may activate the handwriting signature mode regardless of the operation state of the screen of the electronic device.
- the electronic device may activate the handwritten signature mode in a state where the screen of the electronic device is turned off or turned on.
- the electronic device 100 detects a handwritten signature input of the user input means. Then, the electronic device 100 may calculate a comparison result value between the input handwritten signature data and the reference signature data.
- the handwritten signature may be authenticated by calculating a score obtained by applying weights to pens, pen pressures, and pen types according to the handwritten signature input based on the reference signature.
- authentication may be performed by comparing a relationship between a previously stored reference signature and an input handwritten signature.
- the operation of calculating the score may be performed based on a dynamic time warping algorithm for obtaining corresponding points of two lines of reference signature data and handwritten signature data.
- the electronic device 100 may determine that the inputted signature matches the registered handwritten signature and determine that the signature is successful. Accordingly, the electronic device 100 may output that the input handwritten signature matches the reference signature. On the other hand, if the calculated score is larger than the allowable threshold, it can be regarded that the wrong handwritten signature has been input and can indicate a signature failure.
- the input signature data may be added up to a preset number (for example, 10 to 12), and after that, even if it is determined as normal authenticated signature data, the signature data may not be added as reference signature data. Can be.
- the number of data to be added as reference signature data in the input signature data may be set in advance through simulation. For example, if a simulation using 3000 signature data determines that the best results are obtained when 12 data are used, up to 12 data can be input and stored as reference signature data.
- new handwritten signature data when new handwritten signature data is input, it may be used to determine whether it is a personal signature by accumulating and using additional input user data according to a preset criterion as described above.
- FIG. 6 is a flowchart illustrating a signature recognition criteria adjustment procedure according to an embodiment of the present invention.
- authentication may be performed by comparing the signature input in operation 606 with previously stored reference signature data.
- the set signature recognition criteria may be maintained as it is in operation 614.
- the signature recognition criteria may be adjusted in operation 612 according to an embodiment of the present disclosure.
- the signature data may not be properly authenticated by continuously checking the accuracy of the input signature data. Can be implemented to lower the user's signature data authentication criteria.
- the signature is less accurate. If not, it can be classified as a user with high accuracy of signature.
- the process of lowering the signature recognition criterion allows the corresponding user to determine that the input of the signature is irregular and set a reference point for comparing the signature recognition below the normal value.
- this may include adjusting the data baseline applied to meet 95% of identity verification to satisfy 96% of identity verification.
- the signature recognition rate of the user may be used as a method of increasing the signature recognition rate of the user.
- a user who has an authentication error even after one of 12 signature inputs may determine a signer having low signature accuracy and lower a signature recognition criterion.
- the criterion can be lowered so that the success rate of the signer can be 96%.
- the signature success rate of the user may be higher, and the signature success rate of others may be lowered.
- a user who has succeeded in all 12 signature inputs may determine that the signature is highly accurate and maintain or increase the signature recognition criteria. Therefore, the condition can be maintained so that the success rate of signature recognition of the signer can be 95%.
- At least one of the operations illustrated in FIGS. 3 to 6 may be omitted, and at least one other operation may be added between the operations.
- the operations of FIGS. 3 to 6 may be processed in the order shown, and the execution order of at least one operation may be changed from the execution order of other operations.
- a signature input processing method of an electronic device may include registering at least one handwritten signature input by a user input means on an electronic device as reference signature data; Upon inputting a handwritten signature by the user input means, authenticating the inputted handwritten signature by comparing the inputted handwritten signature data with the registered reference signature data; And when the inputted handwritten signature is normally authenticated as a result of the authentication, additionally registering handwritten signature data of the inputted handwritten signature as reference signature data.
- the method may further include determining whether the number of the registered reference signature data exceeds a preset number N S. The determination result may not exceed the number N S. If not, the normally authenticated handwritten signature data may be additionally registered as reference signature data.
- the operation of authenticating the input handwritten signature may be authenticated by further considering a type of a user input means for the input handwritten signature.
- the operation of authenticating the input handwritten signature may be authenticated by further considering a grip state of a user input means with respect to the input handwritten signature.
- the inputted signature when the inputted signature is not normally authenticated as a result of the authentication, determining whether the number of the registered reference signature data exceeds a preset number N C ; And when the determination result does not exceed the preset number N C , adjusting a signature recognition criterion for authentication of the input handwritten signature.
- the handwritten signature processing module 700 may include a preprocessor 710, a related information register 720, a signature register 730, a signature verifier 740, and a verification result processor. 750 may include at least one configuration.
- the handwritten signature processing apparatus 700 may further include a reference signature information database 760, a signature related information database 770, and the like.
- the handwriting signature process performs an operation for registration of a reference signature and a verification operation for an input signature. Such operations may be performed by the signature processing module 170 or the processor 120 of FIG. 1.
- the preprocessor 710 When the image for the handwritten signature drawn on the touch screen is input, the preprocessor 710 performs preprocessing such as rotation and size adjustment.
- the preprocessing unit 210 may perform a function of normalizing the input signature data according to a signature input time or a signature size through a preprocessing process.
- the signature registrar 730 performs an operation for registering the reference signature data, and stores characteristic values of attribute information used for handwriting signature verification in the reference signature information database 760.
- the reference signature information database 760 is a database in which the training data input when the user registers the handwriting signature is digitally imaged and stored.
- the reference signature information database 760 receives a user's own handwriting signature and refers to the trajectory of the font corresponding to the handwriting signature. Can be stored as signature data.
- the related information registration unit 720 checks at least one information related to the signature input when inputting signature data and registers the information in the signature related information database 770 according to an embodiment of the present invention.
- examples of signature-related information related to the signature input include hover data, signature time, stroke length, stroke time, aspect ratio of the signature area, time area of each stroke, and total input when the signature is input as described above. It may include at least one of information related to the area of the signature data, the average of the coordinates of the signature, the gripping state at the time of signing, the signature input tool and the like, but the present invention is not limited thereto.
- the signature registration unit 730 may receive a predetermined number of handwritten signature data as reference signature data when registering the handwritten signature, and then determine whether to use the reference signature data by calculating a distance between the inputted handwritten signatures. have.
- a reference threshold is determined by applying a first threshold reference value, and when the signature variation is greater than the predetermined criterion, the first threshold value is determined.
- the reference threshold may be determined by applying a second threshold reference value that is larger than the threshold reference value.
- At least one related information related to a handwritten signature input may be stored in the signature related information database 770 corresponding to each handwritten signature data (eg, training handwriting data) input when the handwritten signature is registered. have. Accordingly, the input reference signature data and at least one signature related information may be mapped and stored.
- the preprocessor 710 After the registration of the reference signature data and the signature related information is completed, when the user wants to use a service or a function in which the security of the electronic device 100 is set, the preprocessor 710 receives a handwritten signature using a user input means. It can then be preprocessed to authenticate the handwritten signature entered.
- the signature verification unit 740 may verify whether the inputted signature data is authenticated based on at least one reference signature data of the corresponding user stored in the reference signature information database 760.
- the signature verification unit 740 may refer to at least one signature related information stored in the signature related information database 770 and use it for signature verification.
- the signature verification unit 740 may determine whether to authenticate by calculating a comparison result between the inputted handwritten signature data and previously stored reference signature data. For example, a dynamic time warping algorithm may be used to determine the authentication.
- the dynamic time warping algorithm refers to an algorithm for arranging data to compare and accommodate a plurality of batch parameters for variable parallax.
- the signature verification unit 740 may determine an allowance threshold in consideration of a verification target such as a service or a function where a user input is generated. For example, the signature verification unit 740 may be adjusted by applying a reference threshold determined in consideration of the signature variation of the user during signature verification. In addition, the acceptance threshold may be set differently according to at least one signature related information stored in the signature related information database 770, in addition to the verification subject and the signature variation of the user.
- hover data at the time of signature input, signature time, stroke length, stroke time, aspect ratio of the signature area, time area of each stroke, area of total input signature data, average of signature coordinates, signature time The accuracy of signature verification can be improved by comparing at least one of the information related to the holding state of the signature, the signature input tool, and the like.
- the signature verification unit 740 may verify the input signature data by referring to the reference signature information stored in the reference signature information database 760 and the signature related information stored in the signature related information database 770.
- the verification result processing unit 750 performs an operation according to the success or failure of the signature verification in the signature verification unit 740. If the signature verification fails, the verification result processing unit 750 may perform an operation such as outputting a notification message. If the signature verification succeeds, the verification result processing unit 750 may perform an operation such as displaying or executing a verification target having a user input.
- each functional unit and module may mean a functional and structural combination of hardware for performing the technical idea of the embodiment of the present invention and software for driving the hardware.
- each functional unit may mean a logical unit of a predetermined code and a hardware resource for performing the predetermined code, and does not necessarily mean a physically connected code or a kind of hardware. It can be easily inferred by the average expert in the art of the embodiments of the invention.
- An electronic device may include a storage unit which stores at least one registered handwritten signature as reference signature data; An input unit to receive a handwritten signature; And a control unit which, when inputting a handwritten signature by a user input means, compares the inputted handwritten signature data with the registered handwritten signature data and processes the authentication of the inputted handwritten signature.
- One signature-related information can be considered and authenticated.
- the controller may further authenticate in consideration of the type of the user input means for the input handwritten signature.
- the controller may perform authentication in consideration of whether the types of the user input means are the same at the time of registering the handwriting signature and at the time of handwriting signature authentication.
- the controller may further authenticate in consideration of a grip state of a user input means with respect to the input handwritten signature.
- the signature related information may include hover data, signature time, stroke length, stroke time, aspect ratio of the signature area, area for each time, total area of the input signature, and signature coordinates when the signature is input. May be one or more selected from among the average of these, the grasp status at the time of signature and the signature input tool.
- FIG. 8 is a flowchart illustrating a procedure of registering reference signature data according to an embodiment of the present invention.
- a signature registration mode of operation 802 if a signature is input by a user input means (eg, a hand or an electronic pen) in operation 804, it is determined whether the input is a one-time input in operation 806. If the signature is input for the first time, the signature entered in operation 808 is stored.
- the signature related information related to the signature input when registering the signature in operation 810 may be checked, and the signature related information verified in operation 812 may be stored in a database.
- the input signature may be authenticated by comparing the signature input in operation 814 with the first input signature data or previously input signature data. Authentication of the input signature data may be implemented in various ways, and may be implemented to determine the similarity with the previously input signature data and to determine that the authentication is more than the threshold value. If the authentication result is successful in operation 816, the signature input in operation 818 may be stored. Also, in operation 820, the signature related information stored when the signature is registered according to various embodiments of the present disclosure may be checked, and the signature related information which is confirmed in operation 822 may be stored in a database.
- the registration procedure may be terminated in operation 826.
- the electronic device 100 may activate the handwriting signature mode. For example, the electronic device 100 may detect a user input event such as a hovering event when the user input means approaches or is located close to the touch screen. The electronic device 100 may detect a hovering event and determine writing start of the user input means.
- a user input event such as a hovering event when the user input means approaches or is located close to the touch screen.
- the electronic device 100 may detect a hovering event and determine writing start of the user input means.
- the electronic device 100 activates the handwriting signature mode, and accordingly, the electronic device 100 can recognize the writing input of the user input means, thereby making the reference signature of the user input means. Data input can be detected.
- the electronic device 100 may determine whether reference signature data has been input a predetermined number of times. If the reference signature data has not been input a predetermined number of times, the user may request to re-enter the reference signature data before proceeding. When the input of the predetermined number of times of the reference signature data is completed, the electronic device 100 may determine the allowable threshold by calculating the distance between the respective reference signature data after preprocessing the reference signature data as described above.
- FIG. 9 is a flowchart illustrating a signature authentication procedure according to an embodiment of the present invention.
- the signature authentication mode of operation 902 if a signature is input in operation 904, after checking signature related information in operation 906, the signature data and signature related information input in operation 908 may be previously stored. The authentication can be performed by comparing with the signature related information corresponding thereto.
- the electronic device 100 may activate the writing signature mode of the electronic device 100.
- the electronic device 100 may activate the handwriting signature mode regardless of the operation state of the screen of the electronic device.
- the electronic device may activate the handwriting signature mode while the screen of the electronic device is turned off or turned on.
- the electronic device 100 may detect a handwritten signature input of the user input means. Then, the electronic device 100 may calculate a comparison result value between the input handwritten signature data and the reference signature data. More specifically, for example, the handwritten signature may be authenticated by calculating a score obtained by applying each weight to at least one signature related information based on the reference signature. In addition, authentication may be performed by comparing a relationship between previously stored reference signature data and input handwritten signature data. For example, the operation of calculating the score may be performed based on a dynamic time warping algorithm that obtains corresponding points of two lines of a reference signature and a handwritten signature.
- the electronic device 100 may determine that the inputted signature corresponds to the registered handwritten signature and determine that the signature authentication is successful. Accordingly, the electronic device 100 may output that the input handwritten signature matches the reference signature.
- the calculated score is larger than the allowable threshold, it can be regarded that a forged handwritten signature has been input and can indicate a signature failure.
- the signature related information applicable to the above-described signature authentication may include at least one of the following information.
- -Hover information Recognizes and uses hover data as lines, recognizes hover as lines and compares direction changes
- Stroke time The time of the line actually written at the time of signature
- the signature recognition rate of the user may be obtained as follows.
- the signature recognition rate of others is 9.98% when the hover is applied and 5.02% when the time information is used, which is lower than the conventional recognition rate 12.26%. This results in better signature recognition and lower signature recognition by others according to various embodiments of the present disclosure.
- a signature input processing method in an electronic device may include registering at least one handwritten signature input by a user input means on an electronic device as reference signature data; Registering the at least one signature related information associated with the handwritten signature when registering the handwritten signature; And authenticating the inputted handwritten signature by comparing the inputted handwritten signature data with the registered handwritten signature data when inputting a handwritten signature for signature authentication, wherein the authenticating of the at least one signature is performed.
- the relevant information can be further considered and authenticated.
- the operation of authenticating the input handwritten signature may be authenticated by further considering a type of a user input means for the input handwritten signature.
- the authentication method in consideration of the type of the user input means may be authenticated in consideration of whether the type of the user input means at the time of registering the handwriting signature and the handwriting signature authentication is the same.
- the operation of authenticating the input handwritten signature may be authenticated by further considering a grip state of a user input means with respect to the input handwritten signature.
- the signature related information may include hover data, signature time, stroke length, stroke time, aspect ratio of the signature area, area for each time, total area of the input signature, and signature coordinates when the signature is input. May be one or more selected from among the average of these, the grasp status at the time of signing, and the signature input tool.
- FIG. 10A, 10B, and 10C illustrate examples in which embodiments of the present invention are implemented on a screen of an electronic device.
- the signature 1010 when the signature 1010 is selected as a means for unlocking on the screen lock setting screen of the electronic device 1000, the personal signature may be registered as shown in FIG. 10B.
- a signature 1030 may be input into the signature input window 1020 on the signature unlocking setting screen.
- the signature 1040 is input again as shown in FIG. 10C, so that a predetermined number of signature reference data are registered in the signature registration process. Can be registered.
- the training signature data may be repeatedly registered a predetermined number of times (for example, three times).
- FIGS. 11 and 12 illustrate an example of releasing a lock by inputting a signature on the lock screen.
- a signature authentication may be performed by inputting a signature on the lock screen and comparing the input signature data with at least one reference signature data stored in the signature registration process.
- 11 illustrates an example of inputting a signature 1120 with a hand 1130 through a signature input window 1110 on a lock screen of the electronic device 1100.
- 12 illustrates an example of inputting a signature 1220 into the electronic pen 1240 through the signature input window 1210 on the lock screen of the electronic device 1200.
- the signature data input from the signature input window may be further considered, thereby increasing the reliability of authentication.
- the signature related information eg, signature input by hand or signature input by electronic pen
- FIG. 13A and 13B illustrate verification of signature related information according to various embodiments of the present disclosure.
- signature authentication may be performed by comparing the input signature data with previously stored reference signature data.
- the at least one signature related information may be further applied to the signature authentication to increase the reliability of the signature authentication.
- the time of each stroke of the input signature data (eg, 'a' stroke, 'b' stroke, 'c' stroke) (eg, t 1 -t 0 , t 3 -t 2) , t 5 -t 4 ) can be considered for signature verification as signature related data.
- hover data between each stroke indicated by a dotted line may be further considered for signature authentication as signature related data.
- the entire signature creation time may be further considered in signature verification as signature related data.
- the ratio of the width to height of the input signature data or the area of the input signature data may be further considered as signature related data for signature authentication.
- the Y coordinate of a signature input when registering signature related information in the signature registration mode may be calculated and registered as signature related information. Accordingly, it is possible to perform a more accurate signature authentication by comparing the Y coordinate value of the signature input at the time of signature authentication with the Y coordinate value registered as signature related information at the time of registering signature information.
- At least one of the various types of signature related information as described above may be used for signature authentication.
- weighting is applied to each signature related information to increase a signature recognition rate of a person and lower a signature recognition rate of another person.
- a relatively high weight may be applied to the direction conversion graph of the input signature data, and the remaining signature related information (eg, hover data, signature time, stroke length, stroke time, and aspect ratio of the signature area when the signature is input) may be applied.
- a relatively low weight can be applied to the information related to the area of each time, the total area, the average comparison of signature coordinates, the holding state at the time of signing, the signature input tool, and the like.
- the electronic device 1501 may constitute, for example, all or part of the electronic device 101 shown in FIG. 1.
- the electronic device 1501 may include at least one application processor (AP) 1510, a communication module 1520, a subscriber identification module (SIM) card 1524, a memory 1530, and a sensor.
- AP application processor
- SIM subscriber identification module
- the AP 1510 may control a plurality of hardware or software components connected to the AP 1510 by operating an operating system or an application program, and may perform various data processing and operations including multimedia data.
- the AP 1510 may be implemented by, for example, a system on chip (SoC).
- SoC system on chip
- the AP 1510 may further include a graphic processing unit (GPU).
- GPU graphic processing unit
- the communication module 1520 may be connected to other electronic devices (eg, the electronic device 104) connected to the electronic device 1501 (eg, the electronic device 101) through a network. Alternatively, data communication may be performed in communication between the servers 106. According to an embodiment of the present disclosure, the communication module 1520 may include a cellular module 1521, a Wifi module 1523, a BT module 1525, and a GPS module ( 1527, an NFC module 1528, and a radio frequency (RF) module 1529.
- RF radio frequency
- the cellular module 1521 may provide a voice call, a video call, a text service, or an Internet service through a communication network (eg, LTE, LTE-A, CDMA, WCDMA, UMTS, WiBro, or GSM).
- a communication network eg, LTE, LTE-A, CDMA, WCDMA, UMTS, WiBro, or GSM.
- the cellular module 1521 may perform identification and authentication of an electronic device in a communication network using, for example, a subscriber identification module (eg, the SIM card 1524).
- the cellular module 1521 may perform at least some of the functions that the AP 1510 may provide.
- the cellular module 1521 may perform at least part of a multimedia control function.
- the cellular module 1521 may include a Communication Processor (CP).
- the cellular module 1521 may be implemented, for example, in the form of a System on Chip (SoC).
- SoC System on Chip
- components of the cellular module 1521 eg, a communication processor
- the memory 1530 e.g., the RAM 1531
- the power management module 1595 are illustrated as separate components from the AP 1510.
- the AP 1510 may be implemented to include at least some of the aforementioned components (eg, the cellular module 1521).
- the AP 1510 or the cellular module 1521 may load a command or data received from at least one of nonvolatile memory or other components connected to the volatile memory. load) to process it.
- the AP 1510 or the cellular module 1521 may store data received from at least one of the other components or generated by at least one of the other components in a nonvolatile memory.
- Each of the Wifi module 1523, the BT module 1525, the GPS module 1527, or the NFC module 1528 may include, for example, a processor for processing data transmitted and received through a corresponding module. Can be.
- the cellular module 1521, the Wifi module 1523, the BT module 1525, the GPS module 1527, or the NFC module 1528 are shown as separate blocks, but according to an embodiment, the cellular module ( At least a portion (eg, two or more) of the 1521, the Wifi module 1523, the BT module 1525, the GPS module 1527, or the NFC module 1528 may be one integrated chip (IC) or IC package. It may be included within.
- IC integrated chip
- the processors corresponding to each of the cellular module 1521, the Wifi module 1523, the BT module 1525, the GPS module 1527, or the NFC module 1528 may be implemented as a single SoC.
- the RF module 1529 may transmit and receive data, for example, an RF signal.
- the RF module 1529 may include, for example, a transceiver, a power amp module (PAM), a frequency filter, a low noise amplifier (LNA), or the like.
- the RF module 1529 may further include a component for transmitting and receiving electromagnetic waves in free space in wireless communication, for example, a conductor or a conductive wire.
- the cellular module 1521, the Wifi module 1523, the BT module 1525, the GPS module 1527, and the NFC module 1528 are illustrated as sharing one RF module 1529. According to an embodiment, at least one of the cellular module 1521, the Wifi module 1523, the BT module 1525, the GPS module 1527, or the NFC module 1528 may transmit and receive an RF signal through a separate RF module. can do.
- the SIM card 1524 may be a card including a subscriber identification module and may be inserted into a slot formed at a specific position of the electronic device.
- the SIM card 1524 may include unique identification information (eg, an integrated circuit card identifier (ICCID)) or subscriber information (eg, an international mobile subscriber identity (IMSI)).
- ICCID integrated circuit card identifier
- IMSI international mobile subscriber identity
- the memory 1530 may include an internal memory 1532 or an external memory 1534.
- the internal memory 1532 may be, for example, a volatile memory (for example, a dynamic RAM (DRAM), a static RAM (SRAM), a synchronous dynamic RAM (SDRAM), or the like) or a non-volatile memory (non-volatile memory) (for example, one time programmable ROM (OTPROM), programmable ROM (PROM), erasable and programmable ROM (EPROM), electrically erasable and programmable ROM (EPPROM), mask ROM, flash ROM, NAND flash memory, NOR flash memory, etc. It may include at least one of.
- the internal memory 1532 may be a solid state drive (SSD).
- the external memory 1534 may be a flash drive, for example, a compact flash (CF), a secure digital (SD), a micro secure digital (Micro-SD), a mini secure digital (X-), or an xD ( extreme digital) or a memory stick.
- the external memory 1534 may be functionally connected to the electronic device 1501 through various interfaces.
- the electronic device 1501 may further include a storage device (or a storage medium) such as a hard drive.
- the sensor module 1540 may measure a physical quantity or detect an operation state of the electronic device 1501 to convert the measured or detected information into an electrical signal.
- the sensor module 1540 may include, for example, a gesture sensor 1540A, a gyro sensor 1540B, a barometric pressure sensor 1540C, a magnetic sensor 1540D, an acceleration sensor 1540E, a grip sensor 1540F, and a proximity sensor.
- 1540G, color sensor 1540H (e.g., red, green, blue sensor), biometric sensor 1540I, temperature / humidity sensor 1540J, illuminance sensor 1540K, or UV (ultra violet) ) May include at least one of the sensors 1540M.
- the sensor module 1540 may include, for example, an olfactory sensor (E-nose sensor, not shown), an EMG sensor (electromyography sensor, not shown), an EEG sensor (electroencephalogram sensor, not shown), An ECG sensor (not shown), an IR (infra red) sensor (not shown), an iris sensor (not shown), or a fingerprint sensor (not shown) may be included.
- the sensor module 1540 may further include a control circuit for controlling at least one or more sensors belonging therein.
- the input device 1550 may include a touch panel 1552, a (digital) pen sensor 1554, a key 1556, or an ultrasonic input device 1558. Can be.
- the touch panel 1552 may recognize a touch input by at least one of capacitive, resistive, infrared, or ultrasonic methods, for example.
- the touch panel 1552 may further include a control circuit. In the case of the capacitive type, physical contact or proximity recognition is possible.
- the touch panel 1552 may further include a tactile layer. In this case, the touch panel 1552 may provide a tactile response to a user.
- the touch panel 1552 may be implemented as at least one panel capable of sensing various inputs such as a single or multi-touch input, a drag input, a writing input, a drawing input, etc. of a user using various objects such as a finger and a pen. .
- the touch panel 1552 may be implemented using one panel capable of both finger input sensing and pen input sensing, and a touch recognition module capable of detecting finger input and a pen recognition module capable of sensing pen input; It can also be implemented using two panels.
- the touch panel 1552 is implemented by including two panels, such as a touch recognition module capable of sensing finger input and a pen recognition module capable of sensing pen input.
- the touch panel 1552 may output an analog signal corresponding to at least one user input input to a user graphic interface to a touch screen controller (not shown).
- the touch panel 1552 may receive at least one user input through a user's body (eg, a finger including an index finger).
- the touch panel 1552 may also receive a continuous movement of one touch.
- the touch panel 1552 may output an analog signal corresponding to continuous movement of an input touch to a touch screen controller (not shown).
- the touch is not limited to the contact between the touch panel 1552 and a user input means such as a finger, and the touch is detected without detecting a user input means (eg, without direct contact with the touch panel 1552). It may include the user input means is located within a possible recognition distance (for example, 1cm). The distance or interval at which the touch panel 1552 can recognize the user input means may be changed according to the performance or structure of the electronic device 1501. In particular, the touch panel 1552 may be directly contacted with the user input means.
- a value detected by the direct touch event and the hovering event may be differently output so that the touch event and the indirect touch event (ie, the hovering event) can be detected separately. It can be configured to be.
- the touch panel 1552 may be implemented by, for example, a capacitive method, an infrared method, an ultrasonic wave method, or a combination thereof.
- the touch screen controller may convert a signal input from the touch panel 1552 to a digital signal and transmit the converted digital signal to the application processor 1510.
- the application processor 1510 may control a user interface displayed on a panel 1562 (eg, a touch screen) of the display 1560 using the digital signal received from the touch screen controller.
- the application processor 1510 may cause a shortcut icon (not shown) or an object displayed on the panel 1562 to be selected or executed in response to a direct touch event or a hovering event.
- the touch screen controller may be integrated into the application processor 1510.
- the touch screen controller detects a value (eg, current value) output through the touch panel 1552, and checks a hovering interval or distance as well as a user input position, and converts the determined distance value into a digital signal (eg, Z coordinate). C) may be converted into a C and provided to the application processor 1510.
- the application processor 1510 may detect various user inputs received through the camera module 1591, the input device 1550, the display 1560, the sensor module 1540, as well as the touch panel 1552. have.
- the user input may include not only the touch but also various types of information input into the electronic device 1501 such as a user's gesture, voice, eye movement, and a bio signal.
- the application processor 1510 may control to perform a predetermined operation or function corresponding to the detected user input.
- the electronic (digital) pen sensor 1554 may be implemented using, for example, the same or similar method to receiving a user's touch input or using a separate recognition sheet.
- the key 1556 may include, for example, a physical button, an optical key or a keypad.
- the ultrasonic input device 1558 is a device that can detect data by detecting sound waves with a microphone (for example, the microphone 1588) in the electronic device 1501 through an input tool for generating an ultrasonic signal. Recognition is possible.
- the electronic device 1501 may receive a user input from an external device (for example, a computer or a server) connected thereto using the communication module 1520.
- the display 1560 may include a panel 1562, a hologram device 1564, or a projector 1566.
- the panel 1562 may be, for example, a liquid-crystal display (LCD) or an active-matrix organic light-emitting diode (AM-OLED).
- the panel 1562 may be implemented to be, for example, flexible, transparent, or wearable.
- the panel 1562 may be configured as a single module together with the touch panel 1552.
- the hologram device 1564 may show a stereoscopic image in the air by using interference of light.
- the projector 1566 may display an image by projecting light onto a screen.
- the screen may be located inside or outside the electronic device 1501.
- the display 1560 may further include a control circuit for controlling the panel 1562, the hologram device 1564, or the projector 1566.
- the interface 1570 may be, for example, a high-definition multimedia interface (HDMI) 1572, a universal serial bus (USB) 1574, an optical interface 1576, or a D-subminiature D-sub. 1578 may be included.
- the interface 1570 may be included in, for example, the communication interface 160 illustrated in FIG. 1. Additionally or alternatively, the interface 1570 may be, for example, a mobile high-definition link (MHL) interface, a secure digital (SD) card / multi-media card (MMC) interface, or an infrared data association (IrDA) standard. It may include an interface.
- MHL mobile high-definition link
- SD secure digital
- MMC multi-media card
- IrDA infrared data association
- the audio module 1580 may bidirectionally convert a sound and an electric signal. At least some components of the audio module 1580 may be included in, for example, the input / output interface 140 illustrated in FIG. 1.
- the audio module 1580 may process sound information input or output through, for example, a speaker 1582, a receiver 1584, an earphone 1586, a microphone 1588, or the like.
- the camera module 1591 is a device capable of capturing still images and moving images.
- at least one image sensor eg, a front sensor or a rear sensor
- a lens not shown
- ISP image signal processor
- flash eg, LED or xenon lamp
- the power management module 1595 may manage power of the electronic device 1501. Although not shown, the power management module 1595 may include, for example, a power management integrated circuit (PMIC), a charger integrated circuit (ICC), or a battery or fuel gauge.
- PMIC power management integrated circuit
- ICC charger integrated circuit
- battery or fuel gauge a power management integrated circuit
- the PMIC may be mounted in, for example, an integrated circuit or an SoC semiconductor.
- Charging methods may be divided into wired and wireless.
- the charger IC may charge a battery and prevent overvoltage or overcurrent from flowing from a charger.
- the charger IC may include a charger IC for at least one of the wired charging method and the wireless charging method.
- Examples of the wireless charging method include a magnetic resonance method, a magnetic induction method, an electromagnetic wave method, and the like, and additional circuits for wireless charging, such as a coil loop, a resonant circuit, or a rectifier, may be added. have.
- the battery gauge may measure, for example, the remaining amount of the battery 1596, a voltage, a current, or a temperature during charging.
- the battery 1596 may store or generate electricity, and supply power to the electronic device 1501 using the stored or generated electricity.
- the battery 1596 may include, for example, a rechargeable battery or a solar battery.
- the indicator 1597 may display a specific state of the electronic device 1501 or a portion thereof (for example, a boot state, a message state, a charge state, etc.) of the AP 1510.
- the motor 1598 may include a processing device (eg, a GPU) for supporting a mobile TV.
- the device may process media data according to a standard such as digital multimedia broadcasting (DMB), digital video broadcasting (DVB), or media flow.
- DMB digital multimedia broadcasting
- DVD digital video broadcasting
- Each of the above-described elements of the electronic device according to various embodiments of the present disclosure may be configured with one or more components, and the name of the corresponding element may vary according to the type of the electronic device.
- An electronic device according to various embodiments of the present disclosure may be configured to include at least one of the above-described components, and some components may be omitted or further include other additional components.
- some of the components of the electronic device according to various embodiments of the present disclosure may be combined to form one entity, and thus may perform the same functions of the corresponding components before being combined.
- the term “module” may mean, for example, a unit including one or a combination of two or more of hardware, software, or firmware.
- the term “module” may be interchangeably used with terms such as, for example, unit, logic, logical block, component, or circuit.
- the module may be a minimum unit or part of an integrally constructed part.
- the module may be a minimum unit or part of performing one or more functions.
- the module may be implemented mechanically or electronically.
- a “module” in accordance with various embodiments of the present invention may be an application-specific integrated circuit (ASIC) chip, field-programmable gate arrays (FPGAs), or programmable logic that perform certain operations, known or in the future. It may include at least one of a programmable-logic device.
- ASIC application-specific integrated circuit
- FPGAs field-programmable gate arrays
- an apparatus eg, modules or functions thereof
- a method eg, operations
- a computer-readable storage medium may include, for example, The memory 220.
- At least a part of the programming module may be implemented (for example, executed) by, for example, the processor 210.
- At least a part of the programming module may be one. It may include, for example, a module, a program, a routine, sets of instructions, or a process for performing the above function.
- the computer-readable recording medium includes magnetic media such as hard disks, floppy disks, and magnetic tapes, and optical recording media such as compact disc read only memory (CD-ROM) and digital versatile disc (DVD).
- Media magneto-optical media such as floppy disks, and program instructions such as read only memory, random access memory, flash memory, and the like (e.g., programming).
- Hardware device specifically configured to store and perform modules).
- the program instructions may also include high-level language code that can be executed by a computer using an interpreter as well as machine code such as produced by a compiler.
- the hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.
- Modules or programming modules according to various embodiments of the present disclosure may include at least one or more of the aforementioned components, omit some of them, or further include additional components. Operations performed by a module, programming module, or other component according to various embodiments of the present disclosure may be executed in a sequential, parallel, repetitive, or heuristic manner. In addition, some operations may be executed in a different order, may be omitted, or other operations may be added.
- the instructions are configured to cause the at least one processor to perform at least one operation when executed by the at least one processor.
- the inputted handwritten signature is normally authenticated as a result of the authentication, additionally registering handwritten signature data of the inputted handwritten signature as reference signature data.
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Abstract
Description
Claims (20)
- 전자 장치상에서 사용자 입력 수단에 의해 입력된 적어도 하나의 필기 서명을 참조 서명 데이터로 등록하는 동작;상기 사용자 입력 수단에 의해 필기 서명 입력 시, 입력된 필기 서명 데이터와 상기 등록된 참조 서명 데이터를 비교하여 상기 입력된 필기 서명을 인증하는 동작; 및상기 인증 결과 상기 입력된 필기 서명이 정상 인증될 경우, 상기 입력된 필기 서명에 대한 필기 서명 데이터를 참조 서명 데이터로 추가 등록하는 동작을 포함하는, 전자 장치의 서명 입력 처리 방법.
- 제1항에 있어서,상기 등록된 참조 서명 데이터의 개수가 미리 설정된 개수(NS)를 초과하는 지를 판단하는 동작;을 더 포함하며,상기 판단 결과 상기 개수(NS)를 초과하지 않을 경우, 상기 정상 인증된 필기 서명 데이터를 참조 서명 데이터로 추가 등록하는, 전자 장치의 서명 입력 처리 방법.
- 제1항에 있어서, 상기 입력된 필기 서명을 인증하는 동작은,상기 입력된 필기 서명에 대한 사용자 입력 수단의 종류를 더 고려하여 인증하는, 전자 장치의 서명 입력 처리 방법.
- 제1항에 있어서, 상기 입력된 필기 서명을 인증하는 동작은,상기 입력된 필기 서명에 대한 사용자 입력 수단의 그립 상태를 더 고려하여 인증하는, 전자 장치의 서명 입력 처리 방법.
- 제1항에 있어서,상기 인증 결과 상기 입력된 필기 서명이 정상 인증되지 않을 경우, 상기 등록된 참조 서명 데이터의 수가 미리 설정된 개수(NC)를 초과하는 지를 판단하는 동작; 및상기 판단 결과 상기 미리 설정된 개수(NC)를 초과하지 않을 경우, 상기 입력된 필기 서명의 인증을 위한 서명 인식 기준을 조정하는 동작을 더 포함하는, 전자 장치의 서명 입력 처리 방법.
- 등록된 적어도 하나의 필기 서명을 참조 서명 데이터로 저장하는 저장부;필기 서명을 입력받는 입력부; 및사용자 입력 수단에 의해 필기 서명 입력 시, 입력된 필기 서명 데이터와 상기 등록된 참조 서명 데이터를 비교하여 상기 입력된 필기 서명을 인증하고, 상기 인증 결과 상기 입력된 필기 서명이 정상 인증될 경우, 상기 입력된 필기 서명에 대한 필기 서명 데이터를 참조 서명 데이터로 추가 등록하도록 처리하는 제어부를 포함하는, 전자 장치.
- 제6항에 있어서, 상기 제어부는,상기 등록된 참조 서명 데이터의 개수가 미리 설정된 개수(NS)를 초과하는 지를 판단하고, 상기 판단 결과 상기 개수(NS)를 초과하지 않을 경우, 상기 정상 인증된 필기 서명 데이터를 참조 서명 데이터로 추가 등록하도록 처리하는, 전자 장치.
- 제6항에 있어서, 상기 제어부는,상기 입력된 필기 서명에 대한 사용자 입력 수단의 종류를 더 고려하여 인증하는, 전자 장치.
- 제6항에 있어서, 상기 제어부는,상기 입력된 필기 서명에 대한 사용자 입력 수단의 그립 상태를 더 고려하여 인증하는, 전자 장치.
- 제6항에 있어서, 상기 제어부는,상기 인증 결과 상기 입력된 필기 서명이 정상 인증되지 않을 경우, 상기 등록된 참조 서명 데이터의 수가 미리 설정된 개수(NC)를 초과하는 지를 판단하고, 상기 판단 결과 상기 미리 설정된 개수(NC)를 초과하지 않을 경우, 상기 입력된 필기 서명의 인증을 위한 서명 인식 기준을 조정하도록 처리하는, 전자 장치.
- 전자 장치상에서 사용자 입력 수단에 의해 입력된 적어도 하나의 필기 서명을 참조 서명데이터로 등록하는 동작;상기 필기 서명 등록 시, 필기 서명과 관련된 적어도 하나의 서명 관련 정보를 등록하는 동작; 및서명 인증을 위한 필기 서명 입력 시, 입력된 필기 서명 데이터와 상기 등록된 필기 서명 데이터를 비교하여 상기 입력된 필기 서명을 인증하는 동작을 포함하며,상기 인증하는 동작은 상기 등록된 적어도 하나의 서명 관련 정보를 더 고려하여 인증하는, 전자 장치의 서명 입력 처리 방법.
- 제11항에 있어서, 상기 입력된 필기 서명을 인증하는 동작은,상기 입력된 필기 서명에 대한 사용자 입력 수단의 종류를 더 고려하여 인증하는, 전자 장치의 서명 입력 처리 방법.
- 제12항에 있어서, 상기 사용자 입력 수단의 종류를 고려하여 인증하는 방법은,필기 서명 등록 시와 필기 서명 인증 시의 사용자 입력 수단의 종류가 동일한지 여부를 고려하여 인증하는, 전자 장치의 서명 입력 처리 방법.
- 제11항에 있어서, 상기 입력된 필기 서명을 인증하는 동작은,상기 입력된 필기 서명에 대한 사용자 입력 수단의 그립 상태를 더 고려하여 인증하는, 전자 장치의 서명 입력 처리 방법.
- 제11항에 있어서, 상기 서명 관련 정보는,서명 입력 시 호버 데이터, 서명 시간, 스트로크 길이, 스트로크 시간, 서명 영역의 가로대 세로비, 각 시간별 면적, 입력된 서명의 전체 면적, 서명 좌표들의 평균, 서명시의 파지 상태 및 서명 입력 도구 중에서 선택된 어느 하나 이상인, 전자 장치의 서명 입력 처리 방법.
- 등록된 적어도 하나의 필기 서명을 참조 서명 데이터로 저장하는 저장부;필기 서명을 입력받는 입력부; 및사용자 입력 수단에 의해 필기 서명 입력 시, 입력된 필기 서명 데이터와 상기 등록된 필기 서명 데이터를 비교하여 상기 입력된 필기 서명을 인증하도록 처리하는 제어부를 포함하며,상기 인증하는 동작은 상기 등록된 적어도 하나의 서명 관련 정보를 더 고려하여 인증하는, 전자 장치.
- 제16항에 있어서, 상기 제어부는,상기 입력된 필기 서명에 대한 사용자 입력 수단의 종류를 더 고려하여 인증하는, 전자 장치.
- 제17항에 있어서, 상기 제어부는,필기 서명 등록 시와 필기 서명 인증 시의 사용자 입력 수단의 종류가 동일한지 여부를 고려하여 인증하는, 전자 장치.
- 제16항에 있어서, 상기 제어부는,상기 입력된 필기 서명에 대한 사용자 입력 수단의 그립 상태를 더 고려하여 인증하는, 전자 장치.
- 제16항에 있어서, 상기 서명 관련 정보는,서명 입력 시 호버 데이터, 서명 시간, 스트로크 길이, 스트로크 시간, 서명 영역의 가로대 세로비, 각 시간별 면적, 입력된 서명의 전체 면적, 서명 좌표들의평균, 서명시의 파지 상태 및 서명 입력 도구 중에서 선택된 어느 하나 이상인, 전자 장치.
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Also Published As
Publication number | Publication date |
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EP3040874A1 (en) | 2016-07-06 |
US10095851B2 (en) | 2018-10-09 |
CN105493073A (zh) | 2016-04-13 |
US20160210453A1 (en) | 2016-07-21 |
EP3040874A4 (en) | 2017-02-22 |
KR20150026938A (ko) | 2015-03-11 |
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