Detection System, Fingerprint Sensor, and Method of Finger Touch Authentication Thereof

• US 20180239884A1
• Filed: 02/20/2017
• Published: 08/23/2018
• Est. Priority Date: 02/20/2017
• Status: Active Grant

• Current Assignee: Novatek Microelectronics Corporation (Novatek Microelectronics Corp Limited)
• Original Assignee: Novatek Microelectronics Corporation (Novatek Microelectronics Corp Limited)
• Inventors: Hsu, Sheng-Ruei, Chen, Ji-Ting
• Granted Patent: US 10,762,182 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1671 Special purpose buttons or auxiliary keyboards, e.g. retractable mini keypads, keypads or buttons that remain accessible at closed laptop G06F1/1666 takes precedence
• CPC Class Codes: G06F 1/1684 Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 2203/0338 Fingerprint track pad, i.e. fingerprint sensor used as pointing device tracking the fingertip image
• CPC Class Codes: G06F 3/0338 with detection of limited linear or angular displacement of an operating part of the device from a neutral position, e.g. isotonic or isometric joysticks
• CPC Class Codes: G06F 3/03547 Touch pads, in which fingers can move on a surface
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06V 40/13 Sensors therefor
• CPC Class Codes: G06V 40/28 Recognition of hand or arm movements, e.g. recognition of deaf sign language static hand signs G06V40/113

Abstract

The present invention discloses a method of finger touch authentication through a fingerprint sensor. The method includes obtaining a plurality of touch operations through the fingerprint sensor, detecting a pattern of the plurality of touch operations; comparing the pattern with a registered pattern to generate a comparison result, and authenticating the plurality of touch operations on the basis of the comparison result, wherein the pattern indicates at least one feature, and the fingerprint sensor is capable of authenticating a fingerprint of a user after or before the finger touch authentication.

Claims

1. A method of finger touch authentication through a fingerprint sensor comprising:

obtaining a plurality of touch operations through the fingerprint sensor;

detecting a pattern of the plurality of touch operations;

comparing the pattern with a registered pattern to generate a comparison result; and

authenticating the plurality of touch operations on the basis of the comparison result;

wherein the pattern indicates at least one feature, and the fingerprint sensor is capable of authenticating a fingerprint of a user after or before the finger touch authentication.

2. The method of claim 1, wherein the at least one feature comprises a number of the plurality of touch operations and a plurality of touch locations corresponding to the plurality of touch operations.

3. The method of claim 1, wherein the at least one feature comprises a number of a plurality of touch operations and a plurality of touch durations corresponding to the plurality of touch operations.

4. The method of claim 1, wherein the at least one feature comprises a plurality of slide directions corresponding to a plurality of slide operations and a number of slide direction change between two of the plurality of slide operations.

5. A detection system capable of user authentication comprising:

a fingerprint sensor for detecting a plurality of touch operations;

a processing device coupled to the fingerprint sensor; and

a memory device coupled to the processing device, for storing a program code to instruct the processing device to execute a process of finger touch authentication, wherein the process comprises;

obtaining the plurality of touch operations through the fingerprint sensor;

detecting a pattern of the plurality of touch operations;

comparing the pattern with a registered pattern to generate a comparison result; and

authenticating the plurality of touch operations on the basis of the comparison result;

wherein the pattern indicates at least one feature, and the fingerprint sensor is capable of authenticating a fingerprint of a user after or before the finger touch authentication.

6. The detection system of claim 5, wherein the at least one feature comprises a number of the plurality of touch operations and a plurality of touch locations corresponding to the plurality of touch operations.

7. The detection system of claim 5, wherein the at least one feature comprises a number of a plurality of touch operations and a plurality of touch durations corresponding to the plurality of touch operations.

8. The detection system of claim 5, wherein the at least one feature comprises a plurality of slide directions corresponding to a plurality of slide operations and a number of slide direction change between two of the plurality of slide operations.

9. A fingerprint sensor capable of user authentication comprising:

a fingerprint sensing array for detecting a plurality of touch operations;

a processing device coupled to the fingerprint sensing array; and

a memory device coupled to the processing device, for storing a program code to instruct the processing device to execute a process of finger touch authentication, wherein the process comprises;

obtaining the plurality of touch operations through the fingerprint sensor;

detecting a pattern of the plurality of touch operations;

comparing the pattern with a registered pattern to generate a comparison result; and

authenticating the plurality of touch operations on the basis of the comparison result;

wherein the pattern indicates at least one feature.

10. The fingerprint sensor of claim 9, wherein the at least one feature comprises a number of the plurality of touch operations and a plurality of touch locations corresponding to the plurality of touch operations.

11. The fingerprint sensor of claim 9, wherein the at least one feature comprises a number of a plurality of touch operations and a plurality of touch durations corresponding to the plurality of touch operations.

12. The fingerprint sensor of claim 9, wherein the at least one feature comprises a plurality of slide directions corresponding to a plurality of slide operations and a number of slide direction change between two of the plurality of slide operations.

13. The fingerprint sensor of claim 9, which is capable of authenticating a fingerprint of a user after or before the process of finger touch authentication is executed.