Abstract: A method is provided for reconstructing images or video from output of neuromorphic vision (NMV) sensors in a low-light environment. The method includes passively sensing light by an array of NMV sensors in the low-light environment, integrating the sensed light by each of the NMV sensors, outputting a time-stamped event signal per sensor of the array of NMV sensors upon a value of the integration exceeding a threshold value, resetting each NMV sensor after outputting an event signal for new integration of sensed light, combining the event signals, and reconstructing an image and/or video based on the combined event signals.

Abstract: A system includes a die with a first plurality of hybridization bumps extending therefrom, electrically connected to circuitry die. An external circuitry component with a second plurality of hybridization bumps extending therefrom, electrically connected to circuitry in the external circuitry component. The first plurality of hybridization bumps and the second plurality of hybridization bumps are pressed together for electrical communication between the die and the external circuitry component. The first plurality of hybridization bumps have a different material hardness from the second plurality of hybridization bumps. The first plurality of hybridization bumps have a different bump diameter from that of the second plurality of hybridization bumps.

Abstract: One embodiment of a method according to the present disclosure may use a fixture with one or more boot recesses formed therein. An embedded member may be engaged with a boot and placed in a boot recess. Substrate lay-up may be placed around all or a portion of the embedded member and an outer member may be positioned over the substrate lay-up. A cover may be positioned over the outer member and engaged with the fixture. The pressure within an interior portion of the fixture may be reduced to less than ambient pressure and resin may be introduced to interact with the substrate lay-up and allowed to cure.

Abstract: A filter unit for use With a filtrating fluid flow system is configured to receive a flow of a fluid containing particulate matter. The filter unit comprises a filter structure formed of a filter material configured to at least partially filter the particulate matter from the flow of fluid. The filter unit further comprises an entry plate located proximate the filter structure entrance. The filter structure and the entry plate together define a fluid cavity within the filter unit, the entry plate having at least one orifice defined therein through which the flow of fluid can pass into the fluid cavity. The orifice is configured to form a choke, creating a Venturi effect for temporarily increasing the velocity of the flow of fluid through the entry plate and within the fluid cavity, and onto the filter material.

Abstract: One embodiment of a method according to the present disclosure may use an outer member having the required structural rigidity and/or structural integrity such that no thermoforming tool, no support base, no fixture, no cover, no caul plate, no bag, and/or no table are required to make the part as desired. Substrate lay-up may be placed around all or a portion the outer member. A cover may be positioned over the outer member and the pressure within an interior portion of the outer member and cover may be reduced to less than ambient pressure and resin may be introduced to interact with the substrate lay-up and allowed to cure.

Abstract: A method includes forming an assembly of layers including an InP cap layer on an InGaAs absorption region layer, wherein the InGaAs layer is on an n-InP layer, and wherein an underlying substrate layer underlies the n-InP layer. The method includes removing a portion of the InP cap and n-InP layer by dry etching.

Abstract: A pixel system for an imaging device can include one or more pixels comprising a pulse trigger assembly configured to detect a pulse at one or more threshold voltages, a timer system forming part of and/or connected to the one or more pixels, the timer system comprising one or more trigger switches. The pulse trigger assembly can be configured to activate the one or more trigger switches in response to detecting the pulse at the one or more threshold values. The pixel system can include a time-of-flight (TOF) module operatively connected to the one or more pixels and/or the timer system to determine a TOF based on an output from the timer system while simultaneously performing either or both passive imaging and asynchronous laser pulse detection.

Abstract: A method includes determining a customized action routine for a person to carry out in a virtual world, where the person is wearing a virtual reality (VR) headset. Objects associated with events from the routine are presented to the person in a virtual world via the VR headset; and aspects of the person's virtual interaction with the object in the virtual world are rendered on the VR headset. The person's virtual interactions with virtual objects is analyzed and used to determine, in real time, one or more next events for said routine.

Abstract: A sensor includes a sensor array. The sensor array includes a plurality of passive imaging pixels and a plurality of time of flight (TOF) imaging pixels. A method of imaging includes collecting passive imaging data from a sensor array and collecting time of flight (TOF) imaging data from the sensor array. Collecting passive imaging data and collecting TOF imaging data can be performed at least partially at the same time and along a single optical axis without parallax.

Abstract: Devices and methods for providing an integrated belt assembly providing a tie-in point for a safety retention lanyard. In some embodiments, inner and outer belts are provided as coextensive and removably attached. The outer belt has a pass-through window to accommodate a rigger loop of the inner belt. In some embodiments, a method of equipping inner and outer belts is provided.

Abstract: In a system in which a virtual reality (VR) user interacts with a virtual environment via a VR device, where the VR user is provided a view of the virtual environment via the VR device. A method includes tracking the VR user relative to at least one other user in a real-world environment; extracting an image of the VR user from the real-world environment; at least one other user obtaining information about the virtual environment; and presenting at least one other view corresponding to the VR user's virtual environment. Another view is presented as if seen from the location and/or perspective and/or orientation of another device relative to the VR user in the real environment.

Abstract: A time-of-flight sensor threshold circuit outputs a threshold voltage to a time-of-flight sensor, the threshold reducing over the duration of a time-of-flight measurement, which reduction can occur continually during the measurement. The circuit is provided with an initial threshold voltage portion to set the threshold voltage corresponding to a selected maximum threshold value, a time-dependent portion, to charge and discharge over time, to or from a current control portion, a threshold voltage ramp control portion to lower the threshold value over time by charging or discharging the time-dependent portion to or from the current control portion at a selected rate, and a synchronizing portion to synchronize current flow to or from the current control portion with a synchronizing input signal synchronized with an illumination pulse from a connected illuminator.

Abstract: A pixel system for an imaging device can include one or more pixels comprising a pulse trigger assembly configured to detect a pulse at one or more threshold voltages, a timer system forming part of and/or connected to the one or more pixels, the timer system comprising one or more trigger switches. The pulse trigger assembly can be configured to activate the one or more trigger switches in response to detecting the pulse at the one or more threshold values. The pixel system can include a time-of-flight (TOF) module operatively connected to the one or more pixels and/or the timer system to determine a TOF based on an output from the timer system while simultaneously performing either or both passive imaging and asynchronous laser pulse detection.

Abstract: A system includes a die with a first plurality of hybridization bumps extending therefrom, electrically connected to circuitry die. An external circuitry component with a second plurality of hybridization bumps extending therefrom, electrically connected to circuitry in the external circuitry component. The first plurality of hybridization bumps and the second plurality of hybridization bumps are pressed together for electrical communication between the die and the external circuitry component. The first plurality of hybridization bumps have a different material hardness from the second plurality of hybridization bumps. The first plurality of hybridization bumps have a different bump diameter from that of the second plurality of hybridization bumps.

Abstract: A photodetector array (PDA) system includes metal traces. A dielectric passivation layer defines a front side of a stack. An absorption layer is on a back side of the stack relative to the dielectric passivation layer. An array of pixels is included, each having a respective diffusion feature between the dielectric passivation layer and the absorption layer. The diffusion features are operatively connected to the absorption layer for photodetection. A metal trace runs between respective diffusion features. The metal trace is at a depth in the stack closer to the front side of the stack than the absorption layer. The dielectric passivation layer electrically insulates the metal trace from a front side surface of the stack.

Abstract: In accordance with at least one aspect of this disclosure, a photodiode structure can include a charge layer comprised of undoped InP, and a detector active area forming a junction with the charge layer and having edges configured to prevent edge breakdown. The location of the junction can be controlled through a diffusion of the detector active area or through an epitaxially grown doped region, for example. The photodiode structure can also include a charge control layer comprised of doped InP. The charge control layer can include a thickness and carrier concentration configured to achieve a predetermined gain, high speed, low dark current, and low break down voltage.

Abstract: One embodiment of a method according to the present disclosure may use a fixture with one or more boot recesses formed therein. An embedded member may be engaged with a boot and placed in a boot recess. Substrate lay-up may be placed around all or a portion of the embedded member and an outer member may be positioned over the substrate lay-up. A cover may be positioned over the outer member and engaged with the fixture. The pressure within an interior portion of the fixture may be reduced to less than ambient pressure and resin may be introduced to interact with the substrate lay-up and allowed to cure.

Abstract: A method includes determining a customized action routine for a person to carry out in a virtual world, where the person is wearing a virtual reality (VR) headset. Objects associated with events from the routine are presented to the person in a virtual world via the VR headset; and aspects of the person's virtual interaction with the object in the virtual world are rendered on the VR headset. The person's virtual interactions with virtual objects is analyzed and used to determine, in real time, one or more next events for said routine.