Finger sensing apparatus with selectively operable transmitting/receiving pixels and associated methods
First Claim
1. A finger sensing apparatus comprising:
- an integrated circuit (IC) substrate;
an array of finger biometric sensing pixels on said IC substrate, each finger biometric sensing pixel switchable to a receiving mode for receiving radiation from an adjacent finger, and a transmitting mode for transmitting radiation into the adjacent finger; and
a controller coupled to said array of finger biometric sensing pixels for operating at least one first finger biometric sensing pixel in the receiving mode while operating at least one second finger biometric sensing pixel in the transmitting mode.
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Accused Products
Abstract
A finger sensing device may include an integrated circuit (IC) substrate and an array of pixels on the IC substrate. Each pixel may be selectively operable in at least a receiving mode for receiving radiation from an adjacent finger, or a transmitting mode for transmitting radiation into the adjacent finger. The finger sensing device may also include a controller coupled to the array of pixels for selectively operating at least one first pixel in the receiving mode, and while selectively operating at least one second pixel in the transmitting mode. Each pixel may also be selectively operable in a mask mode for neither receiving nor transmitting radiation. The controller may also selectively operate at least one third pixel in the mask mode while selectively operating the at least one first and second pixels in the receiving and transmitting modes.
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Citations
23 Claims
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1. A finger sensing apparatus comprising:
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an integrated circuit (IC) substrate; an array of finger biometric sensing pixels on said IC substrate, each finger biometric sensing pixel switchable to a receiving mode for receiving radiation from an adjacent finger, and a transmitting mode for transmitting radiation into the adjacent finger; and a controller coupled to said array of finger biometric sensing pixels for operating at least one first finger biometric sensing pixel in the receiving mode while operating at least one second finger biometric sensing pixel in the transmitting mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A finger sensing apparatus comprising:
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an integrated circuit (IC) substrate; an array of electric field finger biometric sensing pixels on said IC substrate, each electric field finger biometric sensing pixel switchable to a receiving mode for receiving electric field radiation from an adjacent finger, a transmitting mode for transmitting electric field radiation into the adjacent finger, and a mask mode for neither transmitting nor receiving electric field radiation; and a controller coupled to said array of electric field finger biometric sensing pixels for operating at least one first electric field finger biometric sensing pixel in the receiving mode while operating at least one second electric field finger biometric sensing pixel in the transmitting mode and while operating at least one third electric field finger biometric sensing pixel in the mask mode. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of using a finger sensing apparatus comprising a controller coupled to an array of finger biometric sensing pixels on an integrated circuit substrate, each finger biometric sensing pixel being switchable to a receiving mode for receiving radiation from an adjacent finger, and a transmitting mode for transmitting radiation into the adjacent finger, the method comprising:
using the controller to operate at least one first finger biometric sensing pixel in the receiving mode while operating at least one finger biometric sensing second pixel in the transmitting mode. - View Dependent Claims (18, 19, 20, 21, 22, 23)
Specification