Device and method for authentication by a biometric sensor
a biometric authentication and sensor technology, applied in the field of electronic devices, can solve the problem that the biometric authentication sensor located offset from the touch surface suffers from lack of user sensory feedback
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embodiment 500
[0029]Referring to FIG. 5, there is shown another embodiment 500 including electro-tactile technology at a touch sensitive area 510 of the electronic device. The touch sensitive area of the electronic device includes the proximal area of a biometric authentication sensor 520 as well as the surrounding area about the proximal area. For this embodiment 500, the object 530 (i.e., digit of the user) is co-located at the proximal area of the biometric authentication sensor 520 and the surrounding area about the proximal area of the sensor. The object 530 is partially located at the proximal area and partially located at the surrounding area about the proximal area. In response, the electro-tactile technology provides a second tactile sensation different from the first tactile sensation to indicate to the user that the object 530 is remote from the sensor 520.
embodiment 600
[0030]Referring to FIG. 6, there is shown yet another embodiment 600 including electro-tactile technology at a touch sensitive area 610 of the electronic device. The touch sensitive area of the electronic device includes the proximal area of a biometric authentication sensor (not visible) as well as the surrounding area about the proximal area. For this embodiment 600, the object 630 (i.e., digit of the user) is located at the proximal area of the biometric authentication sensor. In response, the electro-tactile technology provides a third tactile sensation different from the first tactile sensation to indicate to the user that the object 530 is remote from the sensor 520. For one embodiment, the intensity of the second tactile sensation may be between the intensities of the first and third tactile sensations. For another embodiment, the intensity of the first or third tactile sensation may be non-detectable, or nearly non-detectable, by the digit of the user.
[0031]Referring to FIG....
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