Fingerprint information processing method and electronic device supporting the same

Abstract

An electronic device and method are provided. The electronic device includes a fingerprint sensor configured to sense a user's fingerprint; and a processor configured to electrical connect to the fingerprint sensor, identify, when first fingerprint information is obtained through the fingerprint sensor, a first fingerprint area corresponding to the first fingerprint information in a target area for a user authentication, and obtain second fingerprint information that is included in the target area and corresponds to a second fingerprint area adjacent to the first fingerprint area.

What is claimed is: 
     
         1 . An electronic device comprising:
 a fingerprint sensor configured to sense a user's fingerprint; and   a processor configured to:
 electrical connect to the fingerprint sensor, 
 identify, when first fingerprint information is obtained through the fingerprint sensor, a first fingerprint area corresponding to the first fingerprint information in a target area for a user authentication, and 
 obtain second fingerprint information that is included in the target area and corresponds to a second fingerprint area adjacent to the first fingerprint area. 
   
     
     
         2 . The electronic device of  claim 1 , wherein the processor is further configured to obtain the second fingerprint information corresponding to an unregistered fingerprint area in the target area through at least one of a swipe method and a touch method according to a determination of whether obtained fingerprint information satisfies a condition for completing a fingerprint registration. 
     
     
         3 . The electronic device of  claim 1 , wherein the processor is further configured to provide an input method of the second fingerprint information to a user. 
     
     
         4 . The electronic device of  claim 3 , wherein the processor is further configured to perform at least one of outputting a display object corresponding to the input method to a display and outputting voice information corresponding to the input method through a voice output device. 
     
     
         5 . The electronic device of  claim 3 , wherein the processor is further configured to perform at least one of outputting, to a display, a display object that instructs a user to move a finger by a specified distance in a specified direction with a predetermined curvature based on the first fingerprint area and outputting voice information corresponding to the display object through a voice output device. 
     
     
         6 . The electronic device of  claim 3 , wherein the processor is further configured to perform at least one of outputting, to a display, a display object that instructs a user to move a finger in a zigzag pattern by using a specific point of the target area as a start point based on the first fingerprint area, and outputting voice information corresponding to the display object through a voice output device. 
     
     
         7 . The electronic device of  claim 3 , wherein the processor is further configured to perform at least one of outputting, to a display, a display object that instructs a user to move a finger by a specified distance in a specified direction within the target area, starting from the first fingerprint area, and outputting voice information corresponding to the display object through a voice output device. 
     
     
         8 . The electronic device of  claim 3 , wherein the processor is further configured to output, to a display, a first display object that represents a sensing area of the fingerprint sensor and a second display object that represents an unregistered fingerprint area in the target area, and
 perform at least one of outputting, to the display, a third display object that instructs a user to move a finger such that the first display object corresponds to a predetermined area of at least part of the second display object based on a relationship between a position of the first display object and a position of the second display object and outputting voice information corresponding to the third display object through a voice output device.   
     
     
         9 . The electronic device of  claim 1 , wherein, when obtaining the second fingerprint information, the processor is further configured to calculate a ratio of an area corresponding to registered fingerprint areas to the target area and determine whether the ratio is greater than a target value specified with a predetermined size. 
     
     
         10 . The electronic device of  claim 9 , wherein when the ratio is less than the target value, the processor is further configured to obtain third fingerprint information corresponding to a third fingerprint area that is included in the target area and is adjacent to the first fingerprint area. 
     
     
         11 . A fingerprint information processing method of an electronic device, the method comprising:
 obtaining first fingerprint information through a fingerprint sensor for sensing a user's fingerprint;   identifying a first fingerprint area corresponding to the first fingerprint information in a target area for a user authentication; and   obtaining second fingerprint information that is included in the target area and corresponds to a second fingerprint area adjacent to the first fingerprint area.   
     
     
         12 . The method of  claim 11 , wherein obtaining the second fingerprint information comprises obtaining an unregistered fingerprint area in the target area through at least one of a swipe method and a touch method according to a determination of whether obtained fingerprint information satisfies a condition for completing a fingerprint registration. 
     
     
         13 . The method of  claim 11 , wherein obtaining the second fingerprint information comprises providing an input method of the second fingerprint information to a user. 
     
     
         14 . The method of  claim 13 , wherein providing the input method comprises at least one of:
 outputting a display object corresponding to the input method to a display; and   outputting voice information corresponding to the input method through a voice output device.   
     
     
         15 . The method of  claim 13 , wherein providing the input method comprises at least one of:
 outputting, to a display, a display object that instructs a user to move a finger by a specified distance in a specified direction with a predetermined curvature based on the first fingerprint area; and   outputting voice information corresponding to the display object through a voice output device.   
     
     
         16 . The method of  claim 13 , wherein providing the input method comprises at least one of:
 outputting, to a display, a display object that instructs a user to move a finger in a zigzag pattern by using a specific point of the target area as a start point based on the first fingerprint area; and   outputting voice information corresponding to the display object through a voice output device.   
     
     
         17 . The method of  claim 13 , wherein providing the input method comprises at least one of:
 outputting, to a display, a display object that instructs a user to move a finger by a specified distance in a specified direction within the target area, starting from the first fingerprint area; and   outputting voice information corresponding to the display object through a voice output device.   
     
     
         18 . The method of  claim 13 , wherein providing the input method comprises:
 outputting, to a display, a first display object that represents a sensing area of the fingerprint sensor and a second display object that represents an unregistered fingerprint area in the target area; and   at least one of outputting, to the display, a third display object that instructs a user to move a finger such that the first display object corresponds to a predetermined area of at least part of the second display object based on a relationship between a position of the first display object and a position of the second display object, and outputting voice information corresponding to the third display object through a voice output device.   
     
     
         19 . The method of  claim 11 , further comprising, when obtaining the second fingerprint information, calculating a ratio of an area corresponding to registered fingerprint areas to the target area and determining whether the ratio is greater than a target value specified with a predetermined size. 
     
     
         20 . The method of  claim 19 , further comprising, when the ratio is less than the target value, obtaining third fingerprint information corresponding to a third fingerprint area that is included in the target area and is adjacent to the first fingerprint area.