Abstract: A finger sensing apparatus may include a finger sensor including an integrated circuit (IC) substrate, an array of finger sensing elements on the IC substrate, and match circuitry on the IC substrate for performing final finger matching. The finger sensing apparatus may also include a host platform cooperating with the array of finger sensing elements for performing at least one finger prematch function. In addition, the finger sensor and the host platform may implement at least one security function therebetween. The at least one security function may include a watermarking function, and/or an encryption/decryption function.

Abstract: A finger sensing device may include an integrated circuit (IC) substrate, an array of finger sensing elements on the IC substrate, and image watermark circuitry on the IC substrate and cooperating with the array of finger sensing elements for generating finger image data with an image watermark embedded therein. The finger sensing apparatus may also include match circuitry on the IC substrate for performing finger matching based at least upon the image watermark. The array of finger sensing elements may include an array of finger sensing pixels. The image watermark circuitry may distort values from the array of finger sensing pixels to generate the finger image data with the image watermark embedded therein. The watermark circuitry may distort position values from the array of finger sensing pixels.

Abstract: An electronic device may include a housing with a connector member opening therein, electronic circuitry within the housing, and a finger sensor assembly carried by the housing. The finger assembly may include a thinned finger sensing integrated circuit (IC) secured to the housing that has a thickness less than 200 microns. The finger sensor assembly may also include a connector member extending through the connector member opening in the housing and coupling together the thinned finger sensing IC and the electronic circuitry. The thinned finger sensing IC may be adhesively secured to the housing, such as using a pressure sensitive adhesive, and the thinned finger sensing IC may conform to a non-planar surface.

Abstract: An electronic device may include a finger sensor, a display, and a controller coupled to the finger sensor and the display. The controller may be configured to collect finger data from multiple portions of a user's finger as the user's finger is moved around on the finger sensor along a finger travel path. The controller may also be configured to generate on the display a finger movement trace corresponding to the finger movement travel path.

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.

Abstract: An electronic device may include a housing with a connector member opening therein, electronic circuitry within the housing, and a finger sensor assembly carried by the housing. The finger assembly may include a thinned finger sensing integrated circuit (IC) secured to the housing that has a thickness less than 200 microns. The finger sensor assembly may also include a connector member extending through the connector member opening in the housing and coupling together the thinned finger sensing IC and the electronic circuitry. The thinned finger sensing IC may be adhesively secured to the housing, such as using a pressure sensitive adhesive, and the thinned finger sensing IC may conform to a non-planar surface.

Abstract: An electronic device may include a finger sensor, a display, and a controller coupled to the finger sensor and the display. The controller may be configured to collect finger data from multiple portions of a user's finger as the user's finger is moved around on the finger sensor along a finger travel path. The controller may also be configured to generate on the display a finger movement trace corresponding to the finger movement travel path.

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.

Abstract: An electronic device may include a housing with a connector member opening therein, electronic circuitry within the housing, and a finger sensor assembly carried by the housing. The finger assembly may include a thinned finger sensing integrated circuit (IC) secured to the housing that has a thickness less than 200 microns. The finger sensor assembly may also include a connector member extending through the connector member opening in the housing and coupling together the thinned finger sensing IC and the electronic circuitry. The thinned finger sensing IC may be adhesively secured to the housing, such as using a pressure sensitive adhesive, and the thinned finger sensing IC may conform to a non-planar surface.

Abstract: A finger sensing apparatus may include a finger sensor including an integrated circuit (IC) substrate, an array of finger sensing elements on the IC substrate, and match circuitry on the IC substrate for performing final finger matching. The finger sensing apparatus may also include a host platform cooperating with the array of finger sensing elements for performing at least one finger prematch function. In addition, the finger sensor and the host platform may implement at least one security function therebetween. The at least one security function may include a watermarking function, and/or an encryption/decryption function.

Abstract: A finger sensing device may include an integrated circuit (IC) substrate, an array of finger sensing elements on the IC substrate, and image watermark circuitry on the IC substrate and cooperating with the array of finger sensing elements for generating finger image data with an image watermark embedded therein. The finger sensing apparatus may also include match circuitry on the IC substrate for performing finger matching based at least upon the image watermark. The array of finger sensing elements may include an array of finger sensing pixels. The image watermark circuitry may distort values from the array of finger sensing pixels to generate the finger image data with the image watermark embedded therein. The watermark circuitry may distort position values from the array of finger sensing pixels.