CONFIGURABLE MULTI-FUNCTION TOUCHPAD DEVICE

• US 20020054695A1
• Filed: 09/16/1998
• Published: 05/09/2002
• Est. Priority Date: 09/16/1998
• Status: Active Grant

• Current Assignee: Digital Persona
• Original Assignee: Digital Persona
• Inventors: BJORN, VANCE C., BELONGIE, SERGE J.
• Granted Patent: US 6,950,539 B2
• Time in Patent Office: Days
• US Class Current: 382/124
• 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 3/03547 Touch pads, in which fingers can move on a surface
• CPC Class Codes: G06F 3/0421 by interrupting or reflecting a light beam, e.g. optical touch-screen
• CPC Class Codes: G06V 40/13 Sensors therefor

Abstract

A touchpad device comprised of a detection array having a detection surface, wherein the detection surface is configured to receive a fingerprint image. Additionally, a processing device is provided to receive the fingerprint image or image data from the detection array. The processing device configures the touchpad device to operate as a pointer control device or a fingerprint recognition device based upon parameters associated with the fingerprint image.

Claims

1. A touchpad device comprising:

a detection array having a detection surface, wherein the detection surface is configured to receive a fingerprint image;

a processing device configured to receive the fingerprint image or image data from the detection array, wherein the processing device configures the touchpad device to operate as a pointer control device or a fingerprint recognition device based upon parameters associated with the fingerprint image.

2. The touchpad device of claim 1, further comprising a fingerprint platform, wherein the fingerprint platform is configured to supply a fingerprint image to the detection surface of the detection array.

3. The touchpad device of claim 1, wherein the fingerprint platform comprises a sheet prism.

4. The touchpad device of claim 3, wherein the sheet prism is configured to focus the fingerprint image onto the detection surface of the detection array.

5. The apparatus of claim 1, wherein the touchpad device is configured to operate as a pointer control device or a fingerprint recognition device based upon an area parameter associated with the fingerprint image.

6. The apparatus of claim 5, wherein the touchpad device is configured to operate as a fingerprint recognition device when the area parameter associated with the fingerprint image corresponds to a first area median range.

7. The apparatus of claim 5, wherein the touchpad device is configured to operate as a pointer control device when the area parameter associated with the fingerprint image corresponds to a second area median range.

8. The apparatus of claim 1, wherein the touchpad device is configured to operate as a pointer control device or a fingerprint recognition device based upon a pattern parameter associated with the fingerprint images.

9. The apparatus of claim 8, wherein the touchpad device is configured to operate as a fingerprint recognition device when the pattern parameter associated with the fingerprint image conforms to a first pattern.

10. The apparatus of claim 9, wherein the first pattern corresponds to a full fingerprint pattern.

11. The apparatus of claim 8, wherein the touchpad device is configured to operate as a pointer control device when the pattern parameter associated with the fingerprint image conforms to a second pattern.

12. The apparatus of claim 11, wherein the second pattern corresponds to a finger-tip print pattern.

13. The apparatus of claim 1, wherein the processing device is configured to translate the position of the fingerprint image on the detection surface into a cursor position on an interface area of a display when the touchpad device operates as a pointer control device.

14. The apparatus of claim 1, wherein the touchpad device is configured to operate as a pointer control device or a fingerprint recognition device based upon both a pattern parameter and an area parameter associated with the fingerprint image.

16. The multi-function device of claim 15, wherein the means for processing is configured to selectively operate the multi-function device as a pointer control device or a fingerprint recognition device based upon parameters associated with the fingerprint image.

17. The multi-function device of claim 15, wherein the multifunction device is configured to operate as a pointer control device or a fingerprint recognition device based upon an area parameter associated with the fingerprint image.

18. The multi-function device of claim 17, wherein the multifunction device is configured to operate as a fingerprint recognition device when the area parameter associated with the fingerprint image corresponds to a first area median range

19. The multi-function device of claim 17, wherein the multifunction device is configured to operate as a pointer control device when the area parameter associated with the fingerprint image corresponds to a second area median range.

20. The multi-function device of claim 15, wherein the multifunction device is configured to operate as a pointer control device or a fingerprint recognition device based upon a pattern parameter associated with the fingerprint images.

21. The multi-function device of claim 20, wherein the multifunction device is configured to operate as a pointer control device when the pattern parameter associated with the fingerprint image conforms to an average finger-tip pattern.

22. The multi-function device of claim 20, wherein the multifunction device is configured to operate as a fingerprint recognition device when the pattern parameter associated with the fingerprint image conforms to an average fingerprint pattern.

24. The method of claim 23, wherein the multi-function device is configured to operate as a pointer control device or a fingerprint recognition device based upon an area parameter associated with the fingerprint image.

25. The method of claim 24, wherein the multi-function device is configured to operate as a fingerprint recognition device when the area parameter associated with the fingerprint image corresponds to a full fingerprint image.

26. The method of claim 24, wherein the multi-function device is configured to operate as a pointer control device when the area parameter associated with the fingerprint image corresponds to a finger-tip print image.

27. The method of claim 23, wherein the multi-function device is configured to operate as a pointer control device or a fingerprint recognition device based upon an pattern parameter associated with the fingerprint images.

28. The method of claim 27, wherein the multi-function device is configured to operate as a fingerprint recognition device when the pattern parameter associated with the fingerprint image conforms to an average fingerprint pattern.

29. The method of claim 27, wherein the multi-function device is configured to operate as a pointer control device when the pattern parameter associated with the fingerprint image conforms to an average finger-tip pattern.

30. The method of claim 23, further comprising:

translating the position of the fingerprint image supplied to the detection surface of the detection array into a cursor position on an interface area of a display when the multi-function device is configured to operate as a pointer control device.

31. The method of claim 23, further comprising:

performing fingerprint authentication on the fingerprint image supplied to the detection surface of the detection array when the multi-function device is configured to operate as a fingerprint recognition device.

15. A multi-function device comprising:

means for supplying a fingerprint image to a detection surface of a detection array;

means for processing the fingerprint image supplied to the detection array, wherein the means for processing configures the multifunction device to operate as a pointer control device or a fingerprint recognition device based upon parameters associated with the fingerprint image.

23. A method of analyzing a fingerprint image to configure the operation of a multi-function device, comprising:

supplying a fingerprint image to a detection surface of a detection array;

analyzing select fingerprint parameters associated with the fingerprint image;

configuring the multi-function device to operate as a pointer control device or a fingerprint recognition device based upon the fingerprint parameters associated with the fingerprint image.