Fingerprint verification device
AssigneeAvagoTechnologies ECBU IP (Singapore) Pte. Ltd.
InventorAkihiro Machida
Life of this patent
Estimating the term…
Abstract
A fingerprint verification device includes a fingerprint sensor including an imaging surface. The fingerprint sensor is configured to capture images of a user's finger when the finger is swiped against the imaging surface. A memory stores fingerprint data. A controller compares minutiae in the captured images with the stored fingerprint data to verify the user's identity. The controller is configured to determine whether the finger is a real human finger based on the spacing of minutiae in the captured images.
Claims20
A fingerprint verification device comprising:
- a fingerprint sensor including an imaging surface, the fingerprint sensor configured to capture images of a user's finger when the finger is swiped against the imaging surface;
- a memory for storing fingerprint data;
- and
- a controller for comparing minutiae in the captured images with the stored fingerprint data to verify the user's identity, the controller configured to determine whether the finger is a real human finger based on the spacing of minutiae in the captured images.
A method of recognizing a fingerprint, the method comprising:
- providing a fingerprint sensor;
- capturing a first set of images of a finger when the finger is swiped in a first direction on the fingerprint sensor;
- stitching the first set of images together to form a first stitched image;
- capturing a second set of images of the finger when the finger is swiped in a second direction on the fingerprint sensor;
- stitching the second set of images together to form a second stitched image;
- comparing minutiae in the first and the second stitched images to stored fingerprint data;
- and
- determining whether the finger is recognizable based on the comparison.
An electronic device comprising:
- an optical swipe sensor including an imaging surface, the optical swipe sensor configured to capture a first set of images of a user's finger when the finger is swiped in a first direction on the imaging surface, and capture a second set of images of the finger when the finger is swiped in a second direction on the imaging surface, wherein the second direction is substantially opposite to the first direction;
- a memory for storing fingerprint data;
- and
- a processor for extracting minutiae from the first and the second set of images, the processor configured to compare the extracted minutiae with the stored fingerprint data to verify the user's identity, the processor configured to distinguish between a real human finger and a fake finger based on the spacing of features appearing in the captured images.
Dependencies are inferred from the claim text.