Enrollment using synthetic fingerprint image and fingerprint sensing systems

• US 8,913,802 B2
• Filed: 04/02/2014
• Issued: 12/16/2014
• Est. Priority Date: 06/29/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Han, Byron B., Marciniak, Craig A.
• Primary Examiner(s): SHAH, UTPAL D
• Application Number:
  US14/243,858
• Publication Number:
  US 20140301614A1
• Time in Patent Office: 258 Days
• Field of Search: 382/100, 382/124
• US Class Current: 382/124
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 3/0227 Cooperation and interconnection of the input arrangement with other functional units of a computer G06F3/023 - G06F3/037 take precedence
• CPC Class Codes: G06V 10/147 Details of sensors, e.g. sensor lenses fingerprint or palmprint sensors G06V40/13; vascular sensors G06V40/145; eye sensors G06V40/19
• CPC Class Codes: G06V 40/12 Fingerprints or palmprints
• 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 40/1335 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
• CPC Class Codes: G06V 40/53 Measures to keep reference information secret, e.g. cancellable biometrics
• CPC Class Codes: G06V 40/67 by interactive indications to the user

Abstract

A fingerprint sensing system. The fingerprint sensing system includes: at least one sensor; at least one display device; at least one application processor; and at least one secure enclave processor. The application processor(s) receives fingerprint data from the sensor(s) and provides the fingerprint data to the secure enclave processor(s). The secure enclave processor(s) decodes the fingerprint data and provides a signal indicative of at least one matched node. The application processor(s), responsive to receipt of the signal indicative of the matched node(s), presents at least a portion of a synthetic fingerprint image via at least one display device corresponding to the matched node(s).

Claims

1. An electronic device, comprising:

a processing platform comprising a secure enclave processor in communication with an application processor, the application processor including a synthetic fingerprint generator adapted to generate a synthetic fingerprint image;

a display in communication with the processing platform and adapted to display at least a portion of the synthetic fingerprint image; and

a fingerprint sensor in communication with the processing platform and adapted to capture fingerprint data, wherein the secure enclave processor is adapted to receive the fingerprint data and provide a signal indicative of a fingerprint match and the application processor, responsive to receipt of the signal indicative of the fingerprint match, is adapted to change the synthetic fingerprint image based on the matched fingerprint data.

2. The electronic device as in claim 1, wherein the fingerprint sensor is adapted to encrypt the fingerprint data and the secure enclave processor is adapted to decrypt the encrypted fingerprint data.

3. The electronic device as in claim 2, wherein the application processor is adapted to receive the encrypted fingerprint data from the fingerprint sensor and to provide the encrypted fingerprint data to the secure enclave processor.

4. The electronic device as in claim 1, wherein the display displays an indicator to a user illustrating which portion of a finger the user should present to the fingerprint sensor.

5. The electronic device as in claim 1, wherein the processing platform further comprises a template library operatively connected to the secure enclave processor and adapted to store fingerprint template data.

6. The electronic device as in claim 5, wherein the secure enclave processor provides the signal indicative of a fingerprint match based on matching at least a portion of the fingerprint data with a corresponding portion of the fingerprint template data stored in the template library.

7. The electronic device as in claim 1, wherein the application processor changes the synthetic fingerprint image by changing a dash pattern of at least a portion of one or more lines in the synthetic fingerprint image.

8. The electronic device as in claim 1, wherein the application processor changes the synthetic fingerprint image by changing a color of at least a portion of one or more lines in the synthetic fingerprint image.

9. The electronic device as in claim 1, wherein the application processor changes the synthetic fingerprint image by changing a color of a region of the synthetic fingerprint image.

10. The electronic device as in claim 1, wherein the application processor changes the synthetic fingerprint image by changing a shading of at least a portion of one or more lines in the synthetic fingerprint image.

11. The electronic device as in claim 1, wherein the application processor changes the synthetic fingerprint image by changing a shading of a region of the synthetic fingerprint image.

12. The electronic device as in claim 1, wherein the application processor changes the synthetic fingerprint image by changing a thickness of at least a portion of one or more lines in the synthetic fingerprint image.

13. The electronic device as in claim 1, wherein the fingerprint sensor is positioned below a user interface element in the electronic device.

14. An electronic device, comprising:

a processing platform comprising a secure enclave processor in communication with an application processor, the application processor including a synthetic fingerprint generator adapted to generate a synthetic fingerprint image;

a display in communication with the processing platform; and

a fingerprint sensor in communication with the processing platform and adapted to capture fingerprint data, wherein the secure enclave processor is adapted to receive the fingerprint data and provide a signal indicative of a fingerprint match and the application processor, responsive to receipt of the signal indicative of the fingerprint match, is adapted to provide a portion of the synthetic fingerprint image corresponding to the matched fingerprint data to the display.

15. The electronic device as in claim 14, wherein the fingerprint sensor is adapted to encrypt the fingerprint data and the secure enclave processor is adapted to decrypt the encrypted fingerprint data.

16. The electronic device as in claim 15, wherein the application processor is adapted to receive the encrypted fingerprint data from the fingerprint sensor and to provide the encrypted fingerprint data to the secure enclave processor.

17. The electronic device as in claim 14, wherein the display is adapted to display an indicator to a user illustrating which portion of a finger the user should present to the fingerprint sensor.

18. The electronic device as in claim 14, wherein the processing platform further comprises a template library adapted to store fingerprint template data.

19. The electronic device as in claim 18, wherein the secure enclave processor provides the signal indicative of the fingerprint match based on matching at least a portion of the fingerprint data with a corresponding portion of the fingerprint template data stored in the template library.

20. The electronic device as in claim 14, wherein the fingerprint sensor is positioned below a user interface element in the electronic device.

21. A method of fingerprint sensing, comprising:

generating a synthetic fingerprint image using an application processor;

displaying at least a portion of the synthetic fingerprint image on a display;

receiving fingerprint data from a fingerprint sensor;

matching at least a portion of the fingerprint data with a corresponding portion of fingerprint template data using a secure enclave processor;

the secure enclave processor providing a signal indicative of the match to the application processor; and

the application processor responsively changing the synthetic fingerprint image based on the matched fingerprint data.

22. The method as in claim 21, wherein the application processor responsively changes the synthetic fingerprint image by changing at least one of:

a dash pattern of at least a portion of one or more lines in the synthetic fingerprint image;

a color of at least a portion of one or more lines in the synthetic fingerprint image;

a color of a region of the synthetic fingerprint image;

a shading of at least a portion of one or more lines in the synthetic fingerprint image;

a shading of a region of the synthetic fingerprint image; and

a thickness of at least a portion of one or more lines in the synthetic fingerprint image.

23. A method of fingerprint sensing, comprising:

receiving fingerprint data from a fingerprint sensor;

matching at least a portion of the fingerprint data to a corresponding portion of fingerprint template data using a secure enclave processor;

the secure enclave processor providing a signal indicative of the match to an application processor; and

the application processor responsively presenting at least a portion of a synthetic fingerprint image that corresponds to the matched fingerprint data to a display.