Optical touch sensors may be adversely affected by noise, such as modulated sunlight incident on the touch sensor. An analog optical detector is provided that includes a frequency dependent emitter feedback circuitry that does not substantially reduce the gain for a first modulation frequency range of the photodiode current and provides, for a second modulation frequency range of the photodiode current, a current feedback to reduce the gain of the first transistor. The second modulation frequency may include one or more expected noise modulation frequencies. A touch sensor device including a plurality of such optical detectors is also provided. Also provided is a touch sensor device comprising sampling disable circuitry operable to disable sampling of the output from the optical detectors for a duration of time.

Eyewear having a camera capturing images, and an image processor configured to process the images and display the processed image in both controlled and uncontrolled regions on the display. In an example, the image processor applies a vignette gradient to soften edges of the displayed image in the uncontrolled regions, which compensates for any discoloration in the uncontrolled regions. The uncontrolled regions may be located above and below the controlled region.

Disclosed are a reading support apparatus which can detect a user input (touch and/or drag) conducted on a real book by using one camera, and a user input detection method using the same. The reading support apparatus sets a finger and/or nail on a target surface image captured through one camera to touch recognition reference, detects, as a user input, a user's touch or drag conducted on the surface of the real book by comparing the finger and/or nail included in the target surface image to the touch recognition reference, and provides an action corresponding to the user input.

A method for detecting spoof fingerprints with an under-display fingerprint sensor includes illuminating, with incident light emitted from a display, a target region of a fingerprint sample disposed on a top surface of the display; detecting a first scattered signal from the fingerprint sample with a first image sensor region of an image sensor located beneath the display, the first image sensor region not directly beneath the target region, the first scattered signal including a first portion of the incident light scattered by the target region; determining a scattered light distribution based at least in part on the first scattered signal; and identifying spoof fingerprints based at least in part on the scattered light distribution.

Systems and methods for production and presentation of video content are provided. The system receives a camera signal indicative of image data of a scene that includes a transparent panel and receives an overlay signal having at least one visual element. The system generates a first signal based on the processed camera and overlay signals and displays, on a first display, a processed image of the first signal indicative of the at least one visual element overlaid on the image data. The system displays an application window of a second signal on a second display and, based on a user input, relocates the application window from the second display to the overlay signal. The system displays the application window on the first display by transforming the application window utilizing a keying function and overlaying the transformed application window in the processed image of the first signal.

The disclosure provides a floating touch display device which includes a capacitive touch panel, a display device, an interval layer, and an optical-lens structure. The capacitive touch panel is configured to provide a floating touch surface at a floating height above a first surface. The display device includes a second surface, and the display device is configured to provide a display image from the second surface. The optical-lens structure is disposed between the capacitive touch panel and the display device. The interval layer is disposed between the second surface and the optical-lens structure, and a first optical distance is between the second surface and the optical-lens structure. The optical-lens structure is configured to image the display image on the floating touch surface at a second optical distance, and the first optical distance is equal to the second optical distance.

A control method for an optical fingerprint sensor and a touch controller is provided, for canceling or reducing capacitive loading. The optical fingerprint sensor includes a plurality of pixels, and each of the pixels has a first control signal line and a second control signal line. Each of the pixels is further coupled to a first voltage source line, a second voltage source line and a sensing line. The control method includes the step of configuring at least one of the first control signal line, the second control signal line, the first voltage source line, the second voltage source line and the sensing line to be floating when the touch controller is in a touch operation period.

A fingerprint sensing device including a plurality of pixel blocks is provided. The pixel blocks are arranged in an array. Each of the pixel blocks includes a conversion gain. At least two of the conversion gains are different, and the pixel block located in a central location of the array has a minimum conversion gain.

A fingerprint sensing device including a plurality of pixel blocks is provided. The pixel blocks are arranged in an array. Each of the pixel blocks includes a conversion gain. At least two of the conversion gains are different, and the pixel block located in a central location of the array has a minimum conversion gain.

In an embodiment, there is an apparatus for enhanced comfort in operating a computer, the computer including a multi-touch touchscreen, the apparatus including: a camera; and a support member for supporting the camera, the support member configured to position the camera to take video of the back of a user's hand, hereinafter referred to only as hand video, as the user controls the multi-touch touchscreen, the hand video for enhancing video that would normally be for display by the multi-touch touchscreen, the video hereinafter referred to only as pre-hand video, the enhancing to add fingertip position information.