Abstract: An electronic device includes a depth sensor and an inertial measurement unit. The electronic device detects a presence of the user of the electronic device by analyzing a combination of inertial sensor signals from the inertial measurement unit and depth sensor signals from the depth sensor.

Abstract: A sensor management system includes a cloud-based sensor configuration system and an electronic device. The electronic device includes a sensor unit. The sensor unit includes configuration data that controls operation of the sensor unit. The configuration data includes a classifier that classifies feature sets generated from sensor signals of the sensor unit. The electronic device sends sensor data to the cloud-based sensor configuration system. The cloud-based sensor configuration system analyzes the sensor data and generates a new classifier customized for the sensor unit based on the sensor data. The cloud-based sensor configuration system sends the new classifier to the electronic device. The electronic device replaces the classifier in the sensor unit with the new classifier.

Abstract: The present disclosure is directed to semiconductor packages manufactured utilizing a leadframe with varying thicknesses. The leadframe with varying thicknesses has a reduced likelihood of deformation while being handled during the manufacturing of the semiconductor packages as well as when being handled during a shipping process. The method of manufacturing is not required to utilize a leadframe tape based on the leadframe with varying thicknesses. This reduces the overall manufacturing costs of the semiconductor packages due to the reduced materials and steps in manufacturing the semiconductor packages as compared to a method that utilizes a leadframe tape to support a leadframe. The semiconductor packages may include leads of varying thicknesses formed by utilizing the leadframe of varying thicknesses to manufacture the semiconductor packages.

Abstract: Technological advancements are disclosed that utilize inertial sensor data for multiple classes to select a combination of filters to extract information though features to train a machine learning core decision tree. A determination is made whether the data for a class includes a frequency peak or dominating frequency that contains significant information about the class. In response to the data for the class including a frequency peak, a peak-based frequency range is determined. An entropy value is calculated for multiple frequency ranges in the data for the class. An entropy-based frequency range is selected from the multiple frequency ranges having a minimum entropy value. A frequency of interest is selected from the peak-based frequency range and the entropy-based frequency range for the class. A combination of filters is selected for each frequency of interest for each class and a decision tree is trained based on selected filter combination.

Abstract: System, method, and circuitry for utilizing a transmit token to create a floating transmission window for multiple priority data in half-duplex communication systems. A first computing device selects audio data and control data to transmit to a second computing device based on a first low priority for audio data relative to a second high priority for control data and on buffer statuses. In response to the first computing device determining that the first computing device possesses a transmit token, the first computing device transmits the selected audio data and the selected control data to the second computing device. The first computing device then transmits the transmit token to the second computing device. The first computing device then waits for the transmit token to be returned before transmitting more data to the second computing device.

Abstract: A system includes inertial sensors and a GPS. The system generates a first estimated vehicle velocity based on motion data and positioning data, generates a second estimated vehicle velocity based on the processed motion data and the first estimated vehicle velocity, and generates fused datasets indicative of position, velocity and attitude of a vehicle based on the processed motion data, the positioning data and the second estimated vehicle velocity. The generating the second estimated vehicle velocity includes: filtering the motion data, transforming the filtered motion data in a frequency domain based on the first estimated vehicle velocity, generating spectral power density signals, generating an estimated wheel angular frequency and an estimated wheel size based on the spectral power density signals, and generating the second estimated vehicle velocity as a function of the estimated wheel angular frequency and the estimated wheel size.

Abstract: A MEMS pressure sensor packaged with a molding compound. The MEMS pressure sensor features a lead frame, a MEMS semiconductor die, a second semiconductor die, multiple pluralities of bonding wires, and a molding compound. The MEMS semiconductor die has an internal chamber, a sensing component, and apertures. The MEMS semiconductor die and the apertures are exposed to an ambient atmosphere. A method is desired to form a MEMS pressure sensor package that reduces defects caused by mold flashing and die cracking. Fabrication of the MEMS pressure sensor package comprises placing a lead frame on a lead frame tape; placing a MEMS semiconductor die adjacent to the lead frame and on the lead frame tape with the apertures facing the tape and being sealed thereby; attaching a second semiconductor die to the MEMS semiconductor die; attaching pluralities of bonding wires to form electrical connections between the MEMS semiconductor die, the second semiconductor die, and the lead frame; and forming a molding compound.

Abstract: The present disclosure is directed to a system and method of controlling a facial recognition process by validating preconditions with a ranging sensor. The ranging sensor transmits a ranging signal that is reflected off of a user's face and received back at the ranging sensor. The received ranging signal can be used to determine distance between the user's face and the mobile device or to determine the reflectivity of the user's face. Comparing the distance to a range of distances corresponding to normal operation of the device or normal reflectivities associated with human skin tones can reduce the number of false positive activations of the facial recognition process. Furthermore, a multiple zone ranging sensor can produce a face depth map that can be compared to a stored face depth map or can produce a reflectivity map that can be compared to a stored face reflectivity map to further increase power efficiency and device security.

Abstract: A device including microelectromechanical systems (MEMS) sensors is used in dead reckoning in conditions where Global Positioning System (GPS) signals or Global Navigation Satellite System (GNSS) signals are lost. The device is capable of tracking the location of the device after the GPS/GNSS signals are lost by using MEMS sensors such as accelerometers and gyroscopes. By calculating a misalignment angle between a sensor frame of the device with either the movement direction of the vehicle or the walking direction of a pedestrian using the MEMS sensors, the device can accurately calculate the location of a user of the device even without the GPS/GNSS signals. Accordingly, a device capable of tracking the location of a pedestrian and a user riding in a vehicle without utilizing GPS/GNSS signals can be provided.

Abstract: In an embodiment, a device comprises a memory, which, in operation, stores data samples associated with a plurality of data sensors, and circuitry, coupled to the memory, wherein the circuitry, in operation, generates synchronized output data sets associated with the plurality of data sensors. Generating a synchronized output data set includes: determining a reference sample associated with a sensor of the plurality of sensors; verifying a timing validity of a data sample associated with another sensor of the plurality of sensors; identifying a closest-in-time data sample associated with the another sensor of the plurality of sensors with respect to the reference sample; and generating the synchronized output data set based on interpolation.

Abstract: The present disclosure is directed to semiconductor packages manufactured utilizing a leadframe with varying thicknesses. The leadframe with varying thicknesses has a reduced likelihood of deformation while being handled during the manufacturing of the semiconductor packages as well as when being handled during a shipping process. The method of manufacturing is not required to utilize a leadframe tape based on the leadframe with varying thicknesses. This reduces the overall manufacturing costs of the semiconductor packages due to the reduced materials and steps in manufacturing the semiconductor packages as compared to a method that utilizes a leadframe tape to support a leadframe. The semiconductor packages may include leads of varying thicknesses formed by utilizing the leadframe of varying thicknesses to manufacture the semiconductor packages.

Abstract: A device includes processing circuitry and sensor communication interface circuitry. The processing circuitry, in operation, generates one or more parameters of a regression model based on a plurality of data sets. Each data set includes an application time stamp and a sensor time stamp. Based on the one or more parameters, the processing circuitry estimates application time stamps associated with received sensor data samples. The received sensor data samples have associated sensor time stamps. The sensor communication interface circuitry is coupled to the processing circuitry. The sensor communication interface circuitry, in operation, communicatively couples the processing circuitry to a sensor. Data samples of the sensor are received by the processor via the sensor communication interface circuitry.

Abstract: An imaging device includes a first layer made of quantum dots and a second layer including at least two filter regions extending over the first layer. The at least two filter regions are configured to transmit distinct wavelengths. The quantum dots of the first layer are configured to generate charges upon reception of light in the distinct wavelengths.

Abstract: A MEMS pressure sensor packaged with a molding compound. The MEMS pressure sensor features a lead frame, a MEMS semiconductor die, a second semiconductor die, multiple pluralities of bonding wires, and a molding compound. The MEMS semiconductor die has an internal chamber, a sensing component, and apertures. The MEMS semiconductor die and the apertures are exposed to an ambient atmosphere. A method is desired to form a MEMS pressure sensor package that reduces defects caused by mold flashing and die cracking. Fabrication of the MEMS pressure sensor package comprises placing a lead frame on a lead frame tape; placing a MEMS semiconductor die adjacent to the lead frame and on the lead frame tape with the apertures facing the tape and being sealed thereby; attaching a second semiconductor die to the MEMS semiconductor die; attaching pluralities of bonding wires to form electrical connections between the MEMS semiconductor die, the second semiconductor die, and the lead frame; and forming a molding compound.

Abstract: Methods and structures for forming highly-doped, ultrathin layers for transistors formed in semiconductor-on-insulator substrates are described. High dopant concentrations may be achieved in ultrathin semiconductor layers to improve device characteristics. Ion implantation at elevated temperatures may mitigate defect formation for stoichiometric dopant concentrations up to about 30%. In-plane stressors may be formed adjacent to channels of transistors formed in ultrathin semiconductor layers.

Abstract: A semiconductor package that contains an application-specific integrated circuit (ASIC) die and a micro-electromechanical system (MEMS) die. The MEMS die and the ASIC die are coupled to a substrate that includes an opening that extends through the substrate and is in fluid communication with an air cavity positioned between and separating the MEMS die from the substrate. The opening exposes the air cavity to an external environment and, following this, the air cavity exposes a MEMS element of the MEMS die to the external environment. The air cavity separating the MEMS die from the substrate is formed with a method of manufacturing that utilizes a thermally decomposable die attach material.

Abstract: An embodiment method for operating a device includes determining, based on data collected by a first sensor, first information between the first sensor and an object; determining, based on data collected by a second sensor, second information between the second sensor and the object; and determining a distance between the device and the object based on comparing the first information and the second information.

Abstract: A device including microelectromechanical systems (MEMS) sensors are used in dead reckoning in conditions where Global Positioning System (GPS) signals or Global Navigation Satellite System (GNSS) signals are lost. The device is capable of tracking the location of the device after the GPS/GNSS signals are lost by using MEMS sensors such as accelerometers and gyroscopes. By calculating a misalignment angle between a forward axis of a sensor frame of the device and a forward axis of a vehicle frame using the data received from the MEMS sensors, the device can accurately calculate the location of a user or the vehicle of the device even without the GPS/GNSS signals. Accordingly, a device capable of tracking the location of the user riding in the vehicle in GPS/GNSS signals absent environment can be provided.

Abstract: At start-up of a microelectromechanical system (MEMS) gyroscope, the drive signal is inhibited, and the phase, frequency and amplitude of any residual mechanical oscillation is sensed and processed to determine a process path for start-up. In the event that the sensed frequency of the residual mechanical oscillation is a spurious mode frequency and a quality factor of the residual mechanical oscillation is sufficient, an anti-phase signal is applied as the MEMS gyroscope drive signal in order to implement an active dampening of the residual mechanical oscillation. A kicking phase can then be performed to initiate oscillation. Also, in the event that the sensed frequency of the residual mechanical oscillation is a resonant mode frequency with sufficient drive energy, a quadrature phase signal with phase lock loop frequency control and amplitude controlled by the drive energy is applied as the MEMS gyroscope drive signal in order to induce controlled oscillation.

Abstract: Generally described, one or more embodiments are directed to semiconductor packages comprising a plurality of leads and methods of forming same. The plurality of leads include active leads that are electrically coupled to bond pads of a semiconductor die and thereby coupled to active components of the semiconductor die, and inactive leads that are not electrically coupled to bond pads of the semiconductor die. The active leads have surfaces that are exposed at a lower surface of the semiconductor package and forms lands, while the inactive leads are not exposed at the lower surface of the package.