METHOD AND APPARATUS FOR RECOGNIZING FINGERPRINT

• US 20150235098A1
• Filed: 02/19/2015
• Published: 08/20/2015
• Est. Priority Date: 02/19/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: LEE, Hansol, Kim, Changsoo, Jo, Yanggu
• Granted Patent: US 9,996,759 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/0484 for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text
• CPC Class Codes: G06V 40/13 Sensors therefor
• CPC Class Codes: G06V 40/1306 non-optical, e.g. ultrasonic or capacitive sensing
• CPC Class Codes: G06V 40/1365 Matching; Classification
• CPC Class Codes: G06V 40/67 by interactive indications to the user

Abstract

A method and apparatus for recognizing a fingerprint. The method includes displaying a guide area corresponding to a finger touch in at least one area of a display unit; and providing guide information related to fingerprint recognition based on a touch detected via the guide area. The apparatus includes a display unit configured to display a guide area corresponding to a finger touch in at least one area in a fingerprint mode; an input unit configured to detect a touch input, wherein the input unit is integrally configured with the display unit; a fingerprint scan sensor located in an area adjacent to the guide area of the display unit; and a controller configured to provide guide information related to fingerprint recognition based on a touch detected via the guide area in the fingerprint mode.

Claims

1. A method of recognizing a fingerprint, comprising:

displaying a guide area corresponding to a finger touch in at least one area of a display unit; and

providing guide information related to fingerprint recognition based on a touch detected via the guide area.

2. The method of claim 1, wherein providing the guide information comprises:

determining at least one attribute related to the touch;

displaying, when the at least one attribute does not meet a predetermined condition, information making a request for changing the touch; and

collecting, when the at least one attribute meets the predetermined condition, fingerprint information corresponding to the touch via a fingerprint scan sensor adjacent to the guide area.

3. The method of claim 2, wherein the at least one attribute includes at least one of a touched area, a touch angle, and a touch pressure related to the touch.

4. The method of claim 2, wherein displaying information making the request for changing the touch comprises comparing a touched area to a preset area, and displaying text to induce a larger finger touch in the guide area.

5. The method of claim 2, wherein displaying information making the request for changing the touch comprises extracting sizes of a major axis and a minor axis of the touch, comparing the extracted sizes of the major axis and the minor axis, and displaying text to induce a larger finger touch in the guide area.

6. The method of claim 2, wherein displaying information making the request for changing the touch comprises analyzing an orientation of the touch, and displaying text to induce a forward finger touch in the guide area.

7. The method of claim 2, wherein displaying information making the request for changing the touch comprises comparing a touched area with a preset area, analyzing an orientation of the touch, displaying text to induce a larger finger touch in the guide area when the touched area is less than the preset area, and displaying text to induce a forward finger touch when the finger backwardly touches the guide area.

8. The method of claim 2, wherein displaying information making the request for changing the touch comprises:

comparing a touched area with a preset area;

extracting sizes of a major axis and a minor axis of the touch;

comparing the extracted sizes of the major axis and the minor axis;

analyzing an orientation of the touch;

displaying text to induce a larger finger touch in the guide area when the touched area is less than the preset area; and

displaying text to induce a forward finger touch when the finger backwardly touches the guide area.

9. The method of claim 2, further comprising processing a fingerprint input mode after registering the fingerprint information, wherein processing the fingerprint input mode comprises:

displaying the guide area on the display unit and displaying a fingerprint scan;

comparing the fingerprint scan when the fingerprint scan is detected to the registered fingerprint information; and

processing the fingerprint input mode when the fingerprint scan matches the registered fingerprint information.

10. The method of claim 9, wherein the fingerprint input mode is a mode for releasing a lock screen, and wherein the processing of the fingerprint input mode comprises releasing a lock of a screen.

11. An apparatus for recognizing a fingerprint, comprising:

a display unit configured to display a guide area corresponding to a finger in at least one area in a fingerprint mode;

an input unit configured to detect a touch input, wherein the input unit is integrally configured with the display unit;

a fingerprint scan sensor located in an area adjacent to the guide area of the display unit; and

a controller configured to provide guide information related to fingerprint recognition based on a touch detected via the guide area in the fingerprint mode.

12. The apparatus of claim 11, wherein the controller is further configured to determine at least one attribute related to the touch, display a request for changing the touch when the at least one attribute does not meet a predetermined condition, and collect fingerprint information corresponding to the touch via a fingerprint scan sensor adjacent to the guide area when the at least one attribute meets the predetermined condition.

13. The apparatus of claim 12, wherein the at least one attribute include at least one of a touched area, a touch angle, and a touch pressure related to the touch.

14. The apparatus of claim 12, wherein the fingerprint scan sensor is installed in a home button.

15. The apparatus of claim 12, wherein the controller is further configured to compare a touched area with a preset area, and display text to induce a larger finger touch in the guide area of the display unit when the touched area is less than the preset area.

16. The apparatus of claim 12, wherein the controller is further configured to extract sizes of a major axis and a minor axis of the touch, compare the extracted sizes of the major axis and the minor axis, and display text to induce a larger finger touch in the guide area when the size of the major axis is less than a preset size.

17. The apparatus of claim 12, wherein the controller is further configured to analyze an orientation of the touch, and display text to induce a forward finger touch in the guide area when the finger is backwardly oriented.

18. The apparatus of claim 12, wherein the controller is further configured to compare a touched area with a preset area, analyze an orientation of the touch, display text to induce a larger finger touch in the guide area when the touched area is less than the preset area, and display text to induce a forward finger touch when the finger backwardly touches the guide area.

19. The apparatus of claim 12, wherein the controller is further configured to process a fingerprint input mode after registering the fingerprint information, display the guide area on the display unit in the fingerprint input mode, recognize a fingerprint scanned by the fingerprint scan sensor to compare the recognized fingerprint scanned with the registered fingerprint information, and process the fingerprint input mode when the fingerprint scanned matches the registered fingerprint information.

20. The apparatus of claim 18, wherein the fingerprint input mode is a mode for releasing a lock screen, and the controller is further configured to release the lock screen when a fingerprint recognized in a fingerprint input mode matches a registered fingerprint.

21. A method of registering a fingerprint by an electronic device, the method comprising:

displaying a guide area for a finger touch in a fingerprint mode on a display unit and displaying information instructing a user to place a finger in the guide area;

analyzing a touched area and a preset area when a touch is detected in the guide area;

displaying information instructing a larger finger touch when the touched area is less than the preset area; and

collecting fingerprint information corresponding to the touch via a fingerprint scan sensor located at a lower portion of the guide area when the touched area is greater than the preset area.

22. The method of claim 21, further comprising processing a fingerprint input mode after registering the fingerprint information, wherein processing the fingerprint input mode comprises:

displaying the guide area on the display unit and displaying a beginning of a fingerprint scan;

comparing a fingerprint scan when the fingerprint scan is detected to the registered fingerprint; and

processing the fingerprint input mode when the fingerprint scan matches the registered fingerprint.

23. A non-transitory computer-readable recording medium implemented in an electronic device including a fingerprint scan sensor, the non-transitory computer-readable recording medium displays a guide area corresponding to a finger touch in at least one area of a display unit and provides guide information related to fingerprint recognition based on a touch detected via the guide area.

24. A non-transitory computer-readable recording medium implemented in an electronic device including a fingerprint scan sensor displays a guide area for a finger touch in a fingerprint mode on a display unit, displays information instructing a user to place a finger in the guide area, analyzes a touched area and a preset area when a touch is detected in the guide area, displays information instructing a larger finger touch when the touched area is less than the preset area, displays a beginning of a fingerprint scan via a fingerprint scan sensor located at a lower portion of the guide area when the touched area is greater than the preset area, and recognizes and registers scanned fingerprint information.