Abstract: Techniques of identifying gestures include detecting and classifying inner-wrist muscle motions at a user's wrist using micron-resolution radar sensors. For example, a user of an AR system may wear a band around their wrist. When the user makes a gesture to manipulate a virtual object in the AR system as seen in a head-mounted display (HMD), muscles and ligaments in the user's wrist make small movements on the order of 1-3 mm. The band contains a small radar device that has a transmitter and a number of receivers (e.g., three) of electromagnetic (EM) radiation on a chip (e.g., a Soli chip. This radiation reflects off the wrist muscles and ligaments and is received by the receivers on the chip in the band. The received reflected signal, or signal samples, are then sent to processing circuitry for classification to identify the wrist movement as a gesture.

Abstract: This document describes systems and techniques to generate refined location estimates using ultra-wideband (UWB) communication links. Mobile devices, such as smartphones, include location sensors to estimate their location. The accuracy of location sensors is generally about 3 meters (or about 10 feet). More accurate location data would allow mobile devices to provide new and improved functionality. The described systems and techniques determine the distance between nearby mobile devices using UWB communication links. A mobile device can then use the distance between the mobile devices to determine their relative locations. By comparing the relative locations of the mobile devices with their location estimates, the mobile device can generate a refined location estimate with greater accuracy.

Abstract: Systems and methods related to simulated light-in-flight imaging are described. A computing device may execute a light-in-flight engine to process an optical image and a corresponding depth map to produce a light-in-flight image or video that simulates propagation of a wavefront across a scene. The light-in-flight engine may generate an optical simulation output by transforming a depth map to a three-dimensional lift domain to produce a three-dimensional data structure, then convolving the three-dimensional data structure with a convolutional operator, which may define a Gaussian sphere, to produce a filtered three-dimensional data structure. The light-in-flight engine then affine transforms the optical image with an identified slice of the filtered three-dimensional data structure to produce a light-in-flight image.

Abstract: Provided are pixels, devices, systems, and methods relating to active pixel sensor in which each active pixel puts out a signal that represents a temporal differential. The output of the active pixel represents a comparison or difference between successive frames. The differential can represent the state of the sensor element in the pixel at the end of one frame compared to the state of the sensor element of the frame, at the end of the prior frame.

Abstract: Provided are pixels, devices, systems, and methods relating to active pixel sensor in which each active pixel puts out a signal that represents a temporal differential. The output of the active pixel represents a comparison or difference between successive frames. The differential can represent the state of the sensor element in the pixel at the end of one frame compared to the state of the sensor element of the frame, at the end of the prior frame.

Abstract: A removable battery compartment for use with a smoke detector having a first connector portion configured to receive power from a battery. The battery compartment includes an interior chamber configured to house the battery and a second connector portion configured to be removably coupled to the first connector portion. The second connector portion has electrical connections configured to supply power from the battery to the first connector portion of the smoke detector.

Abstract: A complete helmet assembly comprising an inner helmet assembly similar to a baseball, softball, or cricket helmet and an exterior shell assembly are disclosed. The inner helmet assembly is similar to a standard helmet. The exterior shell assembly comprises two or more layers, one of said layers (preferably the more exterior layer) being hard and elastic and one or more of said layers (preferably a more internal layer) being a plastically deformable layer comprising a crumple zone that would need to be replaced after the exterior shell assembly receives significant damage. The user gets the advantages of both a reusable interior helmet and the advantages of single impact safety materials commonly used in bicycle and motorcycle helmets.

Abstract: Disclosed herein are cat food rolls compositions which include animal proteins, plant proteins and binding agents, and methods for making them. The methods include combining animal protein, plant protein and binding agent, and optionally one or more food grade additives to form a cat food roll composition and processing the composition to form a cat food roll product. The cat food roll product possesses improved shelf-stability and enhanced palatability.

Abstract: A removable battery compartment for use with a smoke detector having a first connector portion configured to receive power from a battery. The battery compartment includes an interior chamber configured to house the battery and a second connector portion configured to be removably coupled to the first connector portion. The second connector portion has electrical connections configured to supply power from the battery to the first connector portion of the smoke detector.

Abstract: A pet food product and a method for making the same are provided. The pet food product uses a collagen casing with a filling material that contains at least one amylase. The pet food product after drying has desired levels of softness and durability so that it is an effective pet chew product.

Abstract: Apparatus and method for verifying honest gaming transactions over a communications network includes structure and process whereby a host processor receives a random number from a satellite processor over the communications network. The host processor generates a game seed based on the random number. The host processor also receives an arbitrary game input from the satellite processor and generates a game result based on the game input, the game seed, and predetermined game rules. The satellite processor provides the random number and the arbitrary game input to the host processor over the communications network, and receives data corresponding to the game seed and the game result from the host processor. The satellite processor verifies the honesty of the transaction by (i) generating a game result based on the game input, the data corresponding to the game seed, and the predetermined game rules, and (ii) compares the generated game result with the received game result.

Abstract: A 2-way wireless security system is provided, which may include a control system adapted to remotely configure security-oriented peripherals; and one or more security-oriented peripherals, each of which may be adapted to be wirelessly configured by said control system. The control system may be adapted to bi-directionally and wirelessly communicate with the one or more security-oriented peripherals.

Abstract: Methods and apparatuses for the treatment of ophthalmic lens packages prior to sealing are described herein.

Abstract: Method and apparatus for a provider to verify a client's secret identifier includes structure and steps for the client to scramble his/her predetermined secret identifier in a random way with random data. The scrambled data is transmitted to the provider, and the provider determines whether the client's secret identifier is present in the received scrambled data. Preferably, the provider rejects a transaction if the random data in the received scrambled data is substantially the same as random data received in a previous transaction corresponding to said client.

Abstract: Spectacles include a lens frame having a shoulder, and further include a temple arm pivotably mounted to the shoulder of the lens frame. The temple arm includes an inboard side, an outboard side, and a detent end having a detent. A pawl is pivotably mounted to the shoulder of the lens frame and includes an inboard portion that is adapted for contact with the inboard side of the temple arm. The pawl further includes a temple arm detent portion that is adapted for engagement with the detent of the temple arm to lock the temple arm against the lens frame in a locked position, whereby the temple arm establishes a predetermined load on the lens frame for pinching an item therebetween.

Abstract: Spectacles having a lens frame and a temple arm attached to the lens frame. Means are provided for pivotably and translatably mounting the temple arm to the lens frame such that the temple arm and lens frame are relatively pivotable with respect to one another and the temple arm and lens frame are relatively translatable with respect to one another.

Abstract: An eyewear assembly that is capable of biasing a temple arm tightly against a rim frame so as to pinch a storage surface therebetween for storage purposes. The eyewear assembly includes the rim frame having at least one pivot axis through the rim frame. The temple arm includes a pivot axis through the temple arm, with the pivot axis being coaxially disposed with the pivot axis of the rim frame. A device for clasping the temple arm and rim frame together in both an open and closed position is mounted proximate the pivot axes. The rim frame engages the temple arm to bias the temple arm against the rim frame—thereby establishing a predetermined load on the rim frame in the closed position. The device for clasping further includes a clasping feature located on the rim frame and a clasping feature located on the temple arm, with one of the clasping means including a detent and the other clasping feature including a pawl that engages the detent.