Abstract: Embodiments provide a moldable warming device is configured to provide, using a heating disc, therapeutic warmth and, using a harmonic RFSVG, tuned harmonic resonance frequency stimulation vibration according to determined tuning parameters across the contour of the entire surface of the user's eyelid and periorbital structures to induce expression of shear thinned and liquified meibum from each Meibomian gland in all four eyelids to improve the lipid layer of the surface of the user's eye tear film. According to an embodiment, the moldable warming device further includes a pair of removable and reusable eye pads, each eye pad including a miniaturized optical coherence tomography device configured to map, in real-time, a topography of the user's periocular surface, including a mapping of the eyes and the nose including interpupillary distance and corneal apex height above the lateral canthus to optimize conformance of the pair of eye pads to the periocular surface of the user's eyelids.

Abstract: A system is provided for maintaining a safe operating area while also providing a suitable forward bias voltage to drive a laser diode. The system can monitor a voltage that is applied to a laser diode driver using a threshold that is based on the fabrication process of the laser diode driver. For example, a system can utilize a first threshold for a laser diode driver that is fabricated utilizing a 10 nm process and utilize a second threshold for another laser diode driver that is fabricated utilizing a 20 nm process. The threshold can also be based on a color of the laser or a desired operation mode. The system can monitor a voltage applied to a laser diode using different thresholds while controlling a bleed current to ensure that the laser diode is forward biased while mitigating the risk of silicon breakdown of the laser diode driver.

Abstract: Examples are disclosed that relate to determining a capacitance based on a charge accumulated on a sense capacitor electrode. One example provides a head-mounted device comprising a facial-tracking sensor, a controller, and a charge sensing circuit connected to the facial-tracking sensor. The facial-tracking sensor comprises a sense capacitor electrode configured to be positioned proximate to a surface of a face and form a capacitance based upon a distance between the sense capacitor electrode and the surface of the face, and the controller configured to apply a reference voltage to the sense capacitor electrode. The charge sensing circuit is configured to determine the capacitance of the sense capacitor electrode by determining an amount of charge accumulated on the sense capacitor electrode resulting from the reference voltage.

Abstract: A display device includes a display substrate and a backplane substrate. The display substrate includes an array of micro-LEDs forming individual pixels. The backplane substrate includes a plurality of pixel logic hardware modules. Each pixel logic hardware module includes a local memory element configured to store a multi-bit pixel intensity value of a corresponding micro-LED for an image frame. The backplane substrate is bonded to a backside of the display substrate such that the pixel logic hardware modules are physically aligned behind the array of micro-LEDs and each pixel logic hardware module is electrically connected to a micro-LED of the corresponding pixel.

Abstract: A display device includes a display substrate and a backplane substrate. The display substrate includes an array of micro-LEDs forming individual pixels. The backplane substrate includes a plurality of pixel logic hardware modules. Each pixel logic hardware module includes a local memory element configured to store a multi-bit pixel intensity value of a corresponding micro-LED for an image frame. The backplane substrate is bonded to a backside of the display substrate such that the pixel logic hardware modules are physically aligned behind the array of micro-LEDs and each pixel logic hardware module is electrically connected to a micro-LED of the corresponding pixel.

Abstract: A display device includes a display substrate and a backplane substrate. The display substrate includes an array of micro-LEDs forming individual pixels. The backplane substrate includes a plurality of pixel logic hardware modules. Each pixel logic hardware module includes a local memory element configured to store a multi-bit pixel intensity value of a corresponding micro-LED for an image frame. The backplane substrate is bonded to a backside of the display substrate such that the pixel logic hardware modules are physically aligned behind the array of micro-LEDs and each pixel logic hardware module is electrically connected to a micro-LED of the corresponding pixel.

Abstract: A system is provided for maintaining a safe operating area while also providing a suitable forward bias voltage to drive a laser diode. The system can monitor a voltage that is applied to a laser diode driver using a threshold that is based on the fabrication process of the laser diode driver. For example, a system can utilize a first threshold for a laser diode driver that is fabricated utilizing a 10 nm process and utilize a second threshold for another laser diode driver that is fabricated utilizing a 20 nm process. The threshold can also be based on a color of the laser or a desired operation mode. The system can monitor a voltage applied to a laser diode using different thresholds while controlling a bleed current to ensure that the laser diode is forward biased while mitigating the risk of silicon breakdown of the laser diode driver.

Abstract: A wind turbine comprising a two-part collar; a two-part turbine blade assembly, wherein the two parts are coupled together and the turbine blade assembly is rotatably coupled to the collar; an electrical generator comprising a rotor and a stator, the electrical generator being operatively coupled to the turbine blade assembly such that rotation of the turbine blade assembly relative to the collar results in a corresponding rotation of the rotor.

Abstract: An imaging system includes a sensor array of differential pixels. A controller operates a first differential pixel of the sensor array in a first, lower power mode. The controller supplies a first clock signal to selectively activate a first collection terminal of the first differential pixel for a first duration, and a second clock signal to selectively activate a second collection terminal of the first differential pixel for a second duration. In an analog domain, a first amount of charge accumulated at the first collection terminal over the first duration is readout and compared to a readout of a second amount of charge accumulated at the second collection terminal over the second duration. Responsive to the first amount of charge being different from the second amount of charge by more than a threshold, the first differential pixel of the sensor array is operated in a second, higher power mode.

Abstract: A clocking system disclosed herein includes a delay locked loop (DLL) circuit with a plurality of delay elements, where the DLL circuit is configured to receive a clock input signal and generate a plurality of clock output signals. The clocking system also includes a feed-forward system configured to increase the speed of the clock signal transmission through the delay elements and to enforce symmetric zero crossings of the clock signal at each of the plurality of delay elements.

Abstract: A time-of-flight image sensor including a readout circuit is provided. The readout circuit may include a pixel array including multiple pixels. The pixel array may be configured to produce a pixel signal for each of one or more pixels over a series of timesteps. The pixel signal may include an illuminated value and a reset value. The readout circuit may further include a plurality of gain selection comparators configured to receive the pixel signal and select an amplifier gain value. The readout circuit may further include analog correlated double sampling circuitry. The readout circuit may further include a programmable gain amplifier configured to generate an amplified pixel signal from the pixel signal, which may be amplified at the selected amplifier gain value. The readout circuit may further include a plurality of analog-to-digital converters. Each of the analog-to-digital converters may have a common ramp generated by a global ramp generator.

Abstract: A time-of-flight image sensor including a readout circuit is provided. The readout circuit may include a pixel array including multiple pixels. The pixel array may be configured to produce a pixel signal for each of one or more pixels over a series of timesteps. The pixel signal may include an illuminated value and a reset value. The readout circuit may further include a plurality of gain selection comparators configured to receive the pixel signal and select an amplifier gain value. The readout circuit may further include analog correlated double sampling circuitry. The readout circuit may further include a programmable gain amplifier configured to generate an amplified pixel signal from the pixel signal, which may be amplified at the selected amplifier gain value. The readout circuit may further include a plurality of analog-to-digital converters. Each of the analog-to-digital converters may have a common ramp generated by a global ramp generator.

Abstract: A mobile screening apparatus has a patient compartment having a floor, and end wall, a first sidewall and a second sidewall. The second sidewall has an expanding wall that is movable between a retracted position and an extended position. The mobile screening apparatus also has a scanner positioned in the patient compartment. The scanner has a length dimension extending longitudinally within the patient compartment. A scanning table is positioned within the patient compartment. The scanning table is movable in relation to the scanner. The patient compartment is positioned upon a chassis of a vehicle. A generator is connected to the scanner so as to supply power to the scanner. In particular, the scanner is a lung scanner.

Abstract: A voltage mode laser diode driver selectively turns on and off a laser diode. An output stage has an output node configured to be connected to one of the terminals of the laser diode. Depending upon implementation, an active swing controller drives the output stage in a manner that substantially prevents inductive kickback from causing the output node voltage to swinging above the voltage level at the voltage output of the power supply, or swing below ground. The output stage provides a discharge path around the laser diode to shunt current associated with the inductive kickback, and substantially eliminates ringing on the output node of the output stage while the laser diode is off. A power supply controller adjusts the voltage level of the voltage output of the power supply so that current through the laser diode when on and emitting light is substantially equal to a predetermined desired current.

Abstract: Implementations described herein disclose a laser diode driver that allows switching low-voltage (LV) high-speed devices with while driving high voltage current to a laser diode without risking destroying the LV devices. Specifically, the laser diode driver disclosed herein is a pulsed high speed digital to analog (DAC) driver that uses high-speed LV transistors in advanced nodes for high-speed switching of current nodes.

Abstract: A clocking system disclosed herein includes a delay locked loop (DLL) circuit with a plurality of delay elements, where the DLL circuit is configured to receive a clock input signal and generate a plurality of clock output signals. The clocking system also includes a feed-forward system configured to increase the speed of the clock signal transmission through the delay elements and to enforce symmetric zero crossings of the clock signal at each of the plurality of delay elements.

Abstract: Two transistors are connected between a power source and separate current references. The base of the first transistor is connected to a bias voltage, and the base of the second transistor is connected to the output of a differential amplifier. The amplifier inputs are connected to the nodes where the transistors are connected to the current references. The transistors and the current references may be of different sizes, such that the output voltage of the amplifier is a function of temperature and of the product of the ratios of the transistors and the current references. A number of switches may be employed such that, in alternative modes of operation, the amplifier is used to buffer the bias voltage, the offset of the amplifier, the output of the first transistor, and/or a stored sample of the temperature output voltage, which are combined to arrive at an adjusted temperature reading.

Abstract: A clocking system disclosed herein includes a delay locked loop (DLL) circuit with a plurality of delay elements, where the DLL circuit is configured to receive a clock input signal and generate a plurality of clock output signals. The clocking system also includes a feed-forward system configured to increase the speed of the clock signal transmission through the delay elements and to enforce symmetric zero crossings of the clock signal at each of the plurality of delay elements.

Abstract: A clocking system disclosed herein includes a delay locked loop (DLL) circuit with a plurality of delay elements, where the DLL circuit is configured to receive a clock input signal and generate a plurality of clock output signals. The clocking system also includes a feed-forward system configured to increase the speed of the clock signal transmission through the delay elements and to enforce symmetric zero crossings of the clock signal at each of the plurality of delay elements.

Abstract: Two transistors are connected between a power source and separate current references. The base of the first transistor is connected to a bias voltage, and the base of the second transistor is connected to the output of a differential amplifier. The amplifier inputs are connected to the nodes where the transistors are connected to the current references. The transistors and the current references may be of different sizes, such that the output voltage of the amplifier is a function of temperature and of the product of the ratios of the transistors and the current references. A number of switches may be employed such that, in alternative modes of operation, the amplifier is used to buffer the bias voltage, the offset of the amplifier, the output of the first transistor, and/or a stored sample of the temperature output voltage, which are combined to arrive at an adjusted temperature reading.