FINGERPRINT IDENTIFICATION COMPONENT, ELECTRONIC DEVICE AND FINGERPRINT COLLECTION METHOD

• US 20190108381A1
• Filed: 12/10/2018
• Published: 04/11/2019
• Est. Priority Date: 11/18/2016
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Inventors: LIN, Yugui
• Granted Patent: US 10,817,697 B2
• Time in Patent Office: Days
• CPC Class Codes: G06V 40/1306 non-optical, e.g. ultrasonic or capacitive sensing
• CPC Class Codes: G06V 40/1318 using electro-optical elements or layers, e.g. electroluminescent sensing
• CPC Class Codes: G06V 40/1335 Combining adjacent partial images (e.g. slices) to create a composite input or reference pattern; Tracking a sweeping finger movement
• CPC Class Codes: G06V 40/1365 Matching; Classification

Abstract

A fingerprint identification component is provided. The fingerprint identification component forms a micro-slit fingerprint collection region and includes a plurality of fingerprint collection modules arranged in the micro-slit fingerprint collection region. Each of the fingerprint collection modules includes a resonance transmitter and a resonance sensor. The resonance transmitter is configured to transmit a resonance signal to a fingerprint texture of a user. The resonance sensor is configured to receive the resonance signal after being reflected by the fingerprint texture, such that a fingerprint of the user can be collected or identified. An electronic device and a fingerprint collection method are also provided.

Claims

1. A fingerprint identification component, which defines a micro-slit fingerprint collection region;

comprising;

a plurality of fingerprint collection modules arranged in the micro-slit fingerprint collection region;

each of the fingerprint collection modules having;

a resonance transmitter configured to transmit a resonance signal to a fingerprint texture of a user; and

a resonance sensor configured to receive the resonance signal reflected by the fingerprint texture, to collect or identify a fingerprint of the user.

2. The fingerprint identification component as claimed in claim 1, wherein the plurality of fingerprint collection modules are arranged in a row along a longitudinal direction of the micro-slit fingerprint collection region.

3. The fingerprint identification component as claimed in claim 2, wherein the resonance transmitter and the resonance sensor of each of the fingerprint collecting modules are arranged either perpendicular or parallel to the longitudinal direction of the micro-slit fingerprint collection region.

4. The fingerprint identification component as claimed in claim 1, wherein the resonance transmitters and the resonance sensors are arranged on a same plane.

5. The fingerprint identification component as claimed in claim 1, wherein the fingerprint identification component further comprises a substrate and a circuit board;

the plurality of fingerprint collection modules are assembled onto the substrate;

the circuit board is electrically coupled to the plurality of fingerprint collection modules via the substrate.

6. The fingerprint identification component as claimed in claim 5, wherein the fingerprint identification component further comprises a light guide lens on a side of the substrate facing the user;

the light guide lens faces the fingerprint collection region to guide the resonance signals received by the resonance sensors of the plurality of fingerprint collection modules.

7. The fingerprint identification component as claimed in claim 5, wherein the circuit board is a flexible printed circuit board.

8. The fingerprint identification component as claimed in claim 1, wherein the resonance transmitter is a laser transmitter, and the resonance sensor is a laser sensor.

9. An electronic device, comprising:

a housing forming a resonance signal transmission region thereon; and

a fingerprint identification component received in the housing, the fingerprint identification component defining a micro-slit fingerprint collection region being covered by the resonance signal transmission region; and

the fingerprint identification component comprising;

a plurality of fingerprint collection modules arranged in the micro-slit fingerprint collection region;

each of the fingerprint collection modules having;

a resonance transmitter configured to transmit a resonance signal to pass through the resonance signal transmission region and arrive to a fingerprint texture of a user; and

a resonance sensor configured to receive the resonance signal reflected by the fingerprint texture of the user to collect or identify a fingerprint of the user.

10. The electronic device as claimed in claim 9, wherein the housing comprises a frame;

the resonance signal transmission region is defined on the frame.

11. The electronic device as claimed in claim 10, wherein the housing further comprises a front cover coupled to an interior side of the frame;

the front cover covers the fingerprint identification component.

12. The electronic device as claimed in claim 11, wherein the housing further comprises a rear cover disposed opposite to the front cover;

the rear cover covers the fingerprint identification component.

13. The electronic device as claimed in claim 10, wherein the frame defines a slit corresponding to the resonance signal transmission region;

the housing further comprises a transparent cover covering embedded in the slit.

14. The electronic device as claimed in claim 13, wherein the transparent cover comprises an exterior surface facing the user;

the exterior surface is a curved surface;

the exterior surface of the transparent cover is aligned with an exterior surface of the frame.

15. The electronic device as claimed in claim 13, wherein a longitudinal direction of the slit is parallel to a longitudinal direction of the frame.

16. The electronic device as claimed in claim 13, wherein the frame defines a receiving depression in an interior surface thereof;

the receiving depression is communicated with the slit;

the plurality of fingerprint collection modules are disposed in the receiving depression.

17. The electronic device as claimed in claim 16, wherein the frame further comprises a step disposed on a bottom surface of the receiving depression;

the transparent cover comprises a flange on an end thereof far away from the exterior surface;

the flange is stacked on the step.

18. A fingerprint collection method, comprising:

a resonance transmitter continuously transmitting a resonance signal to an object;

a resonance sensor continuously receiving the resonance signal reflected by the object, and recording the received resonance signal every time;

when a current resonance signal received by the resonance sensor is not identical to a previous resonance signal received, recording the current resonance signal as an effective feedback signal;

generating a fingerprint image based on the effective feedback signal successively received by the resonance sensor.

19. The fingerprint collection method as claimed in claim 18, wherein the fingerprint collection method further comprises:

the resonance transmitter transmitting a standby resonance signal;

when the resonance sensor receives the standby resonance signal reflected by an object outside, generating and transmitting a resonance signal command to the resonance transmitter.

20. The fingerprint collection method as claimed in claim 18, wherein the fingerprint collection method further comprises:

acquiring a duration of the resonance sensor keeping receiving no resonance signal;

when the duration is greater than a predetermined threshold, generating and transmitting a standby command to the resonance transmitter.