Authentication system based on fingerprint and electronic device employed for the system
First Claim
Patent Images
1. An electronic device comprising:
- an image pickup unit including an image pickup element and a lens system;
a focus controller configured to change a distance between said image pickup element and said lens system in accordance with switching between an ordinary imaging mode and a fingerprint imaging mode.
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Accused Products
Abstract
Image pickup window is provided at main body of cellular phone. Image pickup element is moved in accordance with switching between an ordinary imaging mode and a fingerprint imaging mode. Infinite object is focused in the ordinary imaging mode and proximate object is focused in the fingerprint imaging mode. Thus, infinite object and proximate object can be picked up by the same optical system.
171 Citations
15 Claims
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1. An electronic device comprising:
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an image pickup unit including an image pickup element and a lens system;
a focus controller configured to change a distance between said image pickup element and said lens system in accordance with switching between an ordinary imaging mode and a fingerprint imaging mode. - View Dependent Claims (2, 3)
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4. An electronic device comprising:
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an image pickup unit including an image pickup lens and an image pickup element arranged on an image pickup axis of said image pickup lens, said image pickup unit being rotatably provided at a body of said device so that an imaging direction of said image pickup unit is oriented in an inward direction or an outward direction of the body of said device;
an image pickup window provided on a side face of the body of said device such that a fingerprint image of a finger pressed against said image pickup window is incident to the image pickup lens when the imaging direction of said image pickup unit is oriented in the inward direction of the body of said device; and
a light source provided inside of the body of said device and configured to emit light outward of said body through said image pickup window, wherein an ordinary imaging mode is set if the imaging direction of said image pickup unit is oriented in the outward direction, and a fingerprint imaging mode is set if the imaging direction of said image pickup unit is oriented in the inward direction. - View Dependent Claims (5, 6)
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7. An electronic device comprising:
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a slide cover mounted so as to cover one end of a body of said device and expose a part of the body of the device if the slide cover is opened;
an image pickup lens provided on a side face of the one end of the body of the device;
an image pickup element arranged inside of the body of said device and on an image pickup axis of said image pickup lens;
an image pickup window provided on a side face of said slide cover on the image pickup axis; and
a light source provided on the side face of the one end of the body of the device and configured to emit light outwardly of said slide cover through said image pickup window, wherein an ordinary imaging mode is set if said slide cover covers the one end of the body of said device, and a fingerprint imaging mode is set if said slide cover is opened. - View Dependent Claims (8)
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9. A fingerprint authentication system comprising a terminal device and a fingerprint authentication device connected to each other via a network,
said terminal device comprising: -
a fingerprint reader configured to read a fingerprint image of a user; and
a fingerprint transmitter configured to transmit the fingerprint image read by said fingerprint reader to said fingerprint authentication device, and said fingerprint authentication device comprising;
a memory configured to store a reference fingerprint image;
a fingerprint receiver configured to receive the fingerprint image transmitted from said fingerprint transmitter; and
a collation section configured to collate the fingerprint image received by said fingerprint receiver with at least part of the reference fingerprint image based on a size of the fingerprint image received by said fingerprint receiver. - View Dependent Claims (10, 11, 12)
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13. A fingerprint authentication device comprising:
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a memory configured to store a reference fingerprint image;
a fingerprint receiver configured to receive a partial fingerprint image transmitted from an external device;
a detector configured to detect a plurality of small regions in the reference fingerprint image having a maximum correlation with regard to the fingerprint image received by said fingerprint receiver; and
a collation section configured to determine identity between the fingerprint image received by said fingerprint receiver and the reference fingerprint image based on a position relationship of the plurality of small regions. - View Dependent Claims (14, 15)
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Specification