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US 2006/0078178 A1Published application
Swipe sensor
OwnerWill Shatfordinventor
Life of this patent
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Abstract
A sensor for obtaining fingerprint images comprising a row of sensing elements for obtaining a plurality of snapshots of a fingerprint as a finger passes the sensor and at least one reference grid, wherein comparisons made upon images obtained from the reference grid are used to control the rate at which snapshots are obtained by the row of sensing elements.
Claims20
A sensor comprising:
- a row of sensing elements for obtaining a plurality of snapshots of a fingerprint as a finger passes the sensor;
- and
- at least one reference grid adjacent to said row,
- wherein a plurality of images obtained from said at least one reference grid controls the rate at which snapshots of the fingerprint are obtained by the row of sensing elements.
1 more element
A method for obtaining a fingerprint image comprising:
- reading a first snapshot from a row of sensing elements;
- reading a first image from a reference grid;
- storing said first image in said memory as a reference image;
- reading a second image from said reference grid;
- comparing said second image and said reference image;
- and
- reading a second snapshot from said row of said sensing elements based on results of said comparing step.
4 more elements
Dependencies are inferred from the claim text.