Abstract: A delay circuitry is configured to hold up power to a mass storage device after a power fault disables communication of the mass storage device with the host computer. The time delay is sufficient to allow saving of in-flight data from the storage device's volatile cache to the non-volatile media (of the storage device) and to update a metadata table in the non-volatile media.

Abstract: A photoplethysmography (PPG) circuit or non-contact camera obtains PPG signals at a plurality of wavelengths. A signal processing module obtains at least a first spectral response around a first wavelength and a second spectral response around a second wavelength. The signal processing device generates PPG input data using the PPG signals, wherein the PPG input data includes one or more parameters obtained from each of the first spectral response and the second spectral response. A neural network processing device generates an input vector including the PPG input data and determines an output vector including health data, wherein the health data includes for example, an oxygen saturation level, a glucose level or a blood alcohol level.

Abstract: Aircraft are configured to facilitate propeller blade pitch adjustability. According to one example, an aircraft can include a plurality of propellers, where each propeller includes plurality of blades. At least one pitch adjust mechanism may be associated with at least on propeller, where the pitch adjust mechanism is configured to adjust a pitch of the plurality of blades for at least one propeller in response to airflow from at least one other propeller influencing an airflow at the at least one propeller. Other aspects, embodiments, and features are also included.

Abstract: An apparatus and method of keeping an energy storage cell at or above a target temperature, includes receiving at a processing circuit, an analog voltage that is proportional to a temperature of the energy storage cell, converting, at the processing circuit, the analog voltage to a pulse-width-modulated signal having a duty cycle that is proportional to the analog voltage, and driving a switch, with the pulse-width-modulated signal, between conductive and non-conductive states to modulate a voltage passing across (or a current flowing through) a heating element in series with the switch, the heating element being in thermal communication with the energy storage cell, wherein the duty cycle of the pulse-width-modulated signal is adjusted to maintain the temperature of the energy storage cell at or above the target temperature.

Abstract: A multilayer printed circuit board is provided having a first conductive layer and a first plating resist selectively positioned within the first conductive layer. A second plating resist may be selectively positioned within a second conductive layer. A through hole extends through the first plating resist in the first conductive layer and the second plating resist in the second conductive layer. An interior surface of the through hole is plated with a conductive material except along a length between the first plating resist and the second plating resist. This forms a partitioned plated through hole having a first via segment electrically isolated from a second via segment.

Abstract: A method of making printed circuit board vias using a double drilling and plating method is disclosed. A first hole is drilled in a core, the first hole having a first diameter. The first hole is filled and/or plated with an electrically conductive material. A circuit pattern may be formed on one or two conductive layers of the core. A multilayer structure may then be formed including a plurality of cores that also include pre-drilled and plated via holes, wherein at least some of the pre-drilled and plated via holes are aligned with the first hole. A second hole is then drilled within the first hole and the aligned pre-drilled and plated holes, the second hole having a second diameter where the second diameter is smaller than the first diameter. A conductive material is then plated to an inner surface of the second hole.

Abstract: A core or sub-composite structure is provided including a dielectric layer between a first conductive film and a second conductive film. The first conductive film may include a first peelable/removable cover layer formed on or coupled to a first conductive layer. The second conductive film may include a second peelable/removable cover layer formed on or coupled to a second conductive layer.

Abstract: A remote device includes a biosensor interface that is configured to collect biosensor data from an integrated biosensor or by receiving biosensor data from one or more external biosensors or other types of sensors either through a wireless connection or a wired connection. The remote device communicates with a television to display the biosensor data on the television. The television may communicate biosensor data to third party, such as a pharmacy or physician's office or service provider.

Abstract: An optical circuit detects PPG signals reflected from skin tissue at one or more different wavelengths. A processing circuit integrated in the biosensor or in communication with the biosensor processes the PPG signals to obtain a level of vasodilation or a period of vasodilation. The processing circuit may determine a circulation level using a phase offset between the PPG signals and/or a correlation value between the PPG signals.

Abstract: A biosensor is implemented in an earpiece and includes an activity monitoring circuit that detects an activity level of a user and an optical circuit that detects a plurality of spectral responses at a plurality of wavelengths from light reflected from skin of the user. The biosensor determines a heart rate and an oxygen saturation level using the plurality of spectral responses and determines whether the heart rate or the oxygen saturation level reaches a predetermined threshold for the activity level of the user. The biosensor generates an alert and transmits the alert wirelessly to a remote device.

Abstract: An optical circuit detects PPG signals reflected from skin tissue at one or more different wavelengths. A processing circuit integrated in the biosensor or in communication with the biosensor identifies an insulin release event using the a first PPG signal at a first wavelength and second PPG signal at a second wavelength. A correlation function is performed on the first and second PPG signals during the insulin release. The correlation is used to determine a relative change in diameter of vessels during the insulin release event and determine vascular health in response to the relative change.

Abstract: An apparatus and method for memory backup are disclosed as being operational at a memory module that includes a volatile memory device but which is devoid of a non-volatile memory device. The memory module can emulate operations of a non-volatile memory on the memory module while the memory module is devoid of such non-volatile memory.

Abstract: A blood flow simulator generates a compression and expansion in a test fluid that emulates the pressure waveform created by a heartbeat in blood flow. The blood flow simulator stores a plurality of pressure waveform files that include actual data recorded from a heartbeat, arterial pressure waveform, or venous pressure waveform. One or more of the pressure waveform files may be selected and the pressure waveform file is used by the blood flow simulator 100 to generate a pressure waveform in pressurized fluid. The pressurized fluid flows through a test site, such as a surrogate body part or an optical window or other component with material having similar properties to human tissue. Various target substances may also be added to the fluid in known concentrations for testing and configuration of medical devices at the test site.

Abstract: A multilayer printed circuit board is provided having a first dielectric layer and a first plating resist selectively positioned in the first dielectric layer. A second plating resist may be selectively positioned in the first dielectric layer or a second dielectric layer, the second plating resist separate from the first plating resist. A through hole extends through the first dielectric layer, the first plating resist, and the second plating resist. An interior surface of the through hole is plated with a conductive material except along a length between the first plating resist and the second plating resist. This forms a partitioned plated through hole having a first via segment electrically isolated from a second via segment.

Abstract: One feature pertains to a scissor-based carrier assembly for a mass storage device used in a storage computer system. The carrier assembly has fixed and moving parts allowing the carrier to change from a retracted state to insert or remove the mass storage device into or from a storage enclosure to an extended state to couple the mass storage device with a connector of the storage computer system.

Abstract: Containment vessels are adapted to facilitate blast and dispersion mitigation. According to one example, a containment vessel may include at least one containment layer. At least one expansion member may be coupled to the at least one containment layer to apply a force sufficient to expand a perimeter of the containment layer(s) laterally outward. A closure system may be coupled with the containment layer(s), where the closure system is configured to cinch the perimeter of the containment layer(s) around a target object without manual intervention. Unmanned aerial vehicle (UAV) including a containment vessel, as well as methods of making a containment vessel are also disclosed. Other aspects, embodiments, and features are also included.

Abstract: A biosensor includes an optical sensor circuit that emits light directed at skin tissue of a patient at a plurality of wavelengths. A first and second spectral response of light reflected from the tissue is obtained around a first wavelength in a UV range and a second wavelength in an IR range. A measurement of a substance in blood flow is then determined from the spectral responses. A risk of a health condition is obtained using the measurement. The health condition may include one or more of hyperglycemia, diabetes or hypoglycemia.

Abstract: A biosensor for monitoring nitric oxide (NO) of a patient in vivo, includes a PPG circuit configured to obtain a first spectral response for light reflected at a first wavelength from skin tissue of the patient, wherein the first wavelength has a high absorption coefficient for nitric oxide in arterial blood flow and obtain a second spectral response for light reflected at a second wavelength from skin tissue of the patient, wherein the second wavelength has a low absorption coefficient for nitric oxide in arterial blood flow. The biosensor further includes a processing circuit configured to determine an NO measurement value for nitric oxide using the first spectral response and the second spectral response and obtain an adjusted measurement value of nitric oxide by compensating the NO measurement value using a measurement value for at least a first species of hemoglobin.

Abstract: An atomizer includes a cartridge with a reservoir containing a fluid and a heating system configured to atomize the fluid into a vapor for inhalation. A respiratory indicator is configured to determine an inhalation period and an exhalation period of a patient using the atomizer. The atomizer then increases atomization of the vapor during the inhalation period and decreases atomization of the vapor during the exhalation period. An impedance sensor measures an amount of the fluid in the atomizer and deactivates atomization in response to an indication of a low fluid level.

Abstract: A photoplethysmography (PPG) circuit obtains PPG signals at one or more wavelengths. The PPG signal is processed to identify motion artifacts. The motion artifacts are correlated with predetermined PPG signal patterns associated with a movement of a body part. The PPG signals may thus be used to detect movement of the body part. A user device may be controlled in response to the detected movement of the body part.