Abstract: Systems and methods described herein relate to a near-eye display using a pinhole aperture array. In some examples, a near-eye display system includes a ray-limiting structure to provide a pinhole aperture array with a plurality of apertures. The plurality of apertures can each have a shape defined by radially extending elements. Examples also describe extended reality (XR) devices including such a near-eye display system and methods utilizing the near-eye display system.

Abstract: A receiver circuit capable of characterizing a communication channel or link is disclosed. The receiver circuit may receive an input signal that encodes multiple data symbols, and may sample the input signal to generate recovered symbols, a recovered clock signal, and samples. Using the samples and recovered symbols, the receiver circuit may generate recovered data. The receiver circuit may, in response to a detection of a particular logic value in the recovered data, count a number of occurrences of a particular logic value in the samples over a range of sample threshold values and sample times to generate a conditional probability distribution of the input signal. Using a statistical measurement of the conditional probability distribution, the receiver circuit may adjust one of its operating parameters.

Abstract: A device, system and method for enhancing high-contrast and text regions in projected images is provided. A device applies, to an input image: a high-contrast sharpening filter sharpening high-contrast regions producing a high-contrast sharpened image; and a background sharpening filter sharpening other regions of the input producing a background sharpened image, the background sharpening filter applying less sharpening than the high-contrast sharpening filter.

Abstract: A device, system and method for enhancing high-contrast and text regions in projected images is provided. A device applies, to an input image: a high-contrast sharpening filter sharpening high-contrast regions producing a high-contrast sharpened image; and a background sharpening filter sharpening other regions of the input producing a background sharpened image, the background sharpening filter applying less sharpening than the high-contrast sharpening filter.