Fingerprint sensing method with finger position indication
First Claim
1. A method for sensing a fingerprint using a fingerprint sensor including a plurality of sensing elements for sensing identifying features of a fingerprint from a finger of a user, the method comprising the steps of:
- determining an actual fingerprint position on said fingerprint sensor relative to a desired fingerprint position based on the sensed identifying features of a fingerprint of a user; and
generating a finger position indication to assist the user in positioning the finger to the desired fingerprint position based upon the actual fingerprint position on said fingerprint sensor.
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Abstract
A fingerprint sensing device includes a fingerprint sensor, a processor for determining an actual fingerprint position on the fingerprint sensor relative to a desired fingerprint position, and a finger position indicator for generating a finger position indication to assist the user in positioning the finger to the desired fingerprint position based upon the actual fingerprint position on the fingerprint sensor. The processor preferably calculates a fingerprint center point defining the actual fingerprint position. The fingerprint sensor may be provided by an electric field sensor in integrated circuit form. The finger position indicator may be provided by a visual indicator, such as a desired position image indicia generator for generating image indicia on a display screen relating to the desired fingerprint position on the fingerprint sensor, and wherein an actual fingerprint position image is also generated relative to the desired position image indicia on the display screen. The desired position image indicia may preferably be a desired fingerprint center point indicia image. Method aspects of the invention are also disclosed.
318 Citations
13 Claims
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1. A method for sensing a fingerprint using a fingerprint sensor including a plurality of sensing elements for sensing identifying features of a fingerprint from a finger of a user, the method comprising the steps of:
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determining an actual fingerprint position on said fingerprint sensor relative to a desired fingerprint position based on the sensed identifying features of a fingerprint of a user; and generating a finger position indication to assist the user in positioning the finger to the desired fingerprint position based upon the actual fingerprint position on said fingerprint sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification