Abstract: Systems and methods for optical imaging are disclosed. An electronic device for imaging an input object includes a display comprising a sensing surface and an array of display pixels. The electronic device also includes a processing system communicatively coupled to the display, the processing system configured to: selectively illuminate one or more of the display pixels according to a pattern; acquire image data, from one or more detector pixels of the display, of the input object in contact with the sensing surface, wherein the image data corresponds to light from the illuminated display pixels that is reflected at the sensing surface of the display; and process an image of the input object from the image data based upon the pattern.

Abstract: An optical biometric sensor includes an array of light sensing elements, an array of diverging optical elements, and an array of apertures disposed between the array of light sensing elements and the array of diverging optical elements. Light incident on the diverging optical elements within a limited acceptance angle passes through the apertures and towards the light sensing elements and light incident on the diverging optical elements outside of the limited acceptance angle diverges away from the apertures.

Abstract: Several embodiments include a mobile device that uses a media file to render a passcode entry interface. The passcode entry interface can have an assigned location of an input element that corresponds to an inputtable value in the passcode entry interface. The media file can include a visual depiction having the input element at the assigned location. In several embodiments, the media file does not store the association between the assigned location and the inputtable value. The assigned location corresponding to the inputtable value can be separately stored. The mobile device can receive a coordinate of a touch event on the passcode entry interface. To determine a passcode entry based on the touch event, the coordinate can be compared against the separately stored assigned location to determine a corresponding input value to the coordinate.

Abstract: A system and method for an electronic device for imaging a biometric object having structural features of interest is disclosed. The electronic device includes a display including rows of pixel elements, the rows of pixel elements being parallel a first primary direction along a first axis and an optical sensor mounted underneath the display, the optical sensor being parallel to a second primary direction along a second axis. The second axis is rotated at an angle relative the first axis to adjust a moiré pattern outside of a frequency range of the features of interest.

Abstract: A biometric input system includes: a biometric sensor, configured to generate a biometric image comprising features of an input biometric object; and a processing system, configured to receive the biometric image, generate a feature map from the biometric image, perform a distance transform on the feature map, and determine an attribute of the biometric image from the distance transform. The processing system is further configured to compare the determined attribute of the biometric image with corresponding attributes of enrolled biometric images, and, based on the comparison, to eliminate enrolled biometric images from a matching process for the biometric image, wherein the matching process is performed after the elimination and comprises comparison of the biometric image to remaining enrolled biometric images based on one or more attributes of the biometric image other than the determined attribute.

Abstract: A method of includes receiving hotspot identification data from the first device, where the identification data identifies a plurality of WiFi hotspots that are in proximity to the first device; determining that the second device is associated with the first device; sending the hotspot identification data to the second device, where the first device and second device are mobile devices; receiving an indication of proximity from the second device; and notifying the first device of the indication of proximity.

Abstract: A system for providing body metric measurements is provided, the system comprising: a light source providing a red light and an infrared light; an optical detector configured to receive reflected optical signals; force sensor, wherein the force sensor is integrated into a wearable device; and one or more processor configured to automatically transform signals indicative of the reflected optical signals and the force into body metric measurements.

Abstract: This disclosure generally provides an input device that includes a multi-layered capacitive sensor which includes a first layer disposed over a second layer that contains a plurality of sensor electrodes coupled to respective traces. The first and second layers form a capacitive sensing stack where the first layer is between the second layer and a touch surface for interacting with the input object. The first and second layers may be disposed on either the same substrate or different substrates in the stack. In one embodiment, the first layer includes electrically floating electrodes and at least one guard electrode. These components may align with respective components in the second layer. For example, the electrically floating electrodes in the first layer may at least partially cover the sensor electrodes in the second layer.

Abstract: A leadframe for encasing in a mold material includes a plurality of interconnected support members. A die pad is connected to the support members and includes a bottom surface. The die pad is configured to receive a die. A downset is connected to the die pad and positioned below the bottom surface. The downset includes at least one wall defining an interior volume for receiving a flow of the mold material to reduce the velocity of the mold material flow through the downset.

Abstract: An optical biometric sensor includes an array of light sensing elements, an array of diverging optical elements, and an array of apertures disposed between the array of light sensing elements and the array of diverging optical elements. Light incident on the diverging optical elements within a limited acceptance angle passes through the apertures and towards the light sensing elements and light incident on the diverging optical elements outside of the limited acceptance angle diverges away from the apertures.

Abstract: An optical sensor for imaging a biometric object includes: a cover layer transparent to light reflected off the biometric object; an optical layer, disposed below the cover layer, having a plurality of diffractive optical elements; and a sensing layer, having a plurality of sensing elements disposed below the optical layer, each of the sensing elements being configured to detect light from the biometric object. The plurality of diffractive optical elements of the optical layer are configured to direct light from the biometric object to the plurality of sensing elements.

Abstract: A biometric input system includes: a biometric sensor, configured to generate a biometric image comprising features of an input biometric object; and a processing system, configured to receive the biometric image, generate a feature map from the biometric image, perform a distance transform on the feature map, and determine an attribute of the biometric image from the distance transform. The processing system is further configured to compare the determined attribute of the biometric image with corresponding attributes of enrolled biometric images, and, based on the comparison, to eliminate enrolled biometric images from a matching process for the biometric image, wherein the matching process is performed after the elimination and comprises comparison of the biometric image to remaining enrolled biometric images based on one or more attributes of the biometric image other than the determined attribute.

Abstract: A method for using a fingerprint sensor on a mobile device to determine which hand is being used to operate the mobile device includes: acquiring, by a processor, sensing data from the fingerprint sensor corresponding to a finger sensed by the fingerprint sensor; determining, by the processor, an orientation of the finger based on the acquired sensing data; and generating, by the processor, a signal for indicating which hand is being used to operate the mobile device based on the determined orientation of the finger.

Abstract: A transparent sensor pattern suitable for sensing fingerprint information in a display area is disclosed. The sensor pattern includes a receiver electrode extending in a first direction and a transmitter electrode extending in a second direction different from the first direction. The receiver electrode includes a conductive trace made from an opaque metal material and the receiver electrode is substantially free of transparent conductive material. The transmitter electrode includes a conductive segment made from a transparent conductive material. A dielectric material is disposed between the receiver electrode and the transmitter electrode, and the dielectric material electrically insulates the receiver electrode from the transmitter electrode.

Abstract: A method of detecting location includes receiving, on a mobile device, a plurality of previously stored WiFi hotspots; detecting, on the mobile device, a plurality of surrounding WiFi hotspots; comparing the plurality of surrounding WiFi hotspots to determine one or more differences between the plurality of previously stored WiFi hotspots; determining the differences satisfy a difference threshold; sending the plurality of surrounding WiFi hotspots to a location lookup system; and receiving a response from the location lookup system.

Abstract: A leadframe for encasing in a mold material includes a plurality of interconnected support members. A die pad is connected to the support members and includes a bottom surface. The die pad is configured to receive a die. A downset is connected to the die pad and positioned below the bottom surface. The downset includes at least one wall defining an interior volume for receiving a flow of the mold material to reduce the velocity of the mold material flow through the downset.

Abstract: An optical sensor system includes: an input surface providing a sensing region for a biometric object; a plurality of display elements, disposed beneath the input surface, configured to emit light to provide a display; an aperture layer, disposed beneath the plurality of display elements; a collimator layer, disposed beneath the aperture layer; and a plurality of light sensing elements, disposed beneath the collimator layer, wherein the plurality of light sensing elements are configured to detect light from the sensing region that has passed through the aperture layer and the collimator layer.

Abstract: A method for using a fingerprint sensor on a mobile device to determine which hand is being used to operate the mobile device includes: acquiring, by a processor, sensing data from the fingerprint sensor corresponding to a finger sensed by the fingerprint sensor; determining, by the processor, an orientation of the finger based on the acquired sensing data; and generating, by the processor, a signal for indicating which hand is being used to operate the mobile device based on the determined orientation of the finger.

Abstract: Systems and methods for optical imaging are disclosed. An electronic device for imaging an input object includes a display comprising a sensing surface and an array of display pixels. The electronic device also includes a processing system communicatively coupled to the display, the processing system configured to: selectively illuminate one or more of the display pixels according to a pattern; acquire image data, from one or more detector pixels of the display, of the input object in contact with the sensing surface, wherein the image data corresponds to light from the illuminated display pixels that is reflected at the sensing surface of the display; and process an image of the input object from the image data based upon the pattern.

Abstract: A method includes receiving a request for a list of nearby user devices, where the list of nearby user devices will be sent to a merchant device, where the merchant device is associated with a merchant, where the merchant operates a plurality of merchant devices, and where the merchant device is included in the plurality of merchant devices; receiving a respective location for one or more user devices, where each user device is associated with the merchant; determining, for each of the one or more user devices, whether the user device is nearby the merchant device, based on the respective location, to the merchant device than the other merchant devices in the plurality of merchant devices; generating the list of nearby user devices based at least on the determination; and sending the list of nearby user devices to the merchant device.