Navigation assisted fingerprint enrollment

摘要

An electronic device can include at least one fingerprint image sensor that obtains fingerprint image information, where the fingerprint information can include at least a first partial fingerprint image and a second partial fingerprint image. At least one fingerprint navigation sensor can be disposed to receive navigation information responsive to at least one of movement or orientation of a user's finger with respect to the at least one fingerprint image sensor. At least one processing unit can combine the first partial fingerprint image and the second partial fingerprint image into at least one combined fingerprint image utilizing the navigation information.

主权项

1. A fingerprint sensing system, comprising:
at least one fingerprint image sensor that obtains fingerprint image information including at least a first partial fingerprint image and a second partial fingerprint image, wherein the at least one fingerprint image sensor is disposed below a touch button; at least one fingerprint navigation sensor disposed below the touch button and configured to receive navigation information responsive to at least one of movement or orientation of a user's finger on the touch button with respect to the at least one fingerprint image sensor; and at least one processing unit operably connected to the at least one fingerprint image sensor and the at least one fingerprint navigation sensor and configured to operate in multiple modes, the multiple modes comprising: a fingerprint recognition mode that combines the first partial fingerprint image and the second partial fingerprint image into at least one combined fingerprint image by adjusting at least one partial fingerprint image with respect to another partial fingerprint image utilizing at least one affine transformation based on the navigation information; a navigation mode that navigates an object on a display based on navigation information from the at least one fingerprint navigation sensor; and a standby mode.