Abstract: A measurement system and method of manufacture can include: a pressure resistant structure; a pressure inducer coupled to the pressure resistant structure, the pressure inducer having an engaged configuration, the engaged configuration of the pressure inducer increasing pressure exerted on a portion of a user in contact with the pressure resistant structure; a light source coupled to the pressure resistant structure; an optical sensor coupled to the pressure resistant structure and configured to detect a signal from the light source; a pressure sensor coupled to the pressure resistant structure, the pressure sensor configured to detect the pressure exerted on the portion of the user in contact with the pressure inducer; and a processor coupled to the optical sensor and the pressure sensor, the processor configured to correlate volumetric data from the optical sensor with pressure data from the pressure sensor and to provide a blood pressure measurement.

Abstract: Described are embodiments of methods for determining physiological data, such as vital signs, by using an optical diagnostic sensor, the method comprising receiving at a semiconductor material, which is located between a photodiode and a trench, an opening into silicon, or a backside wafer-level package (WLP) coating, light of a first wavelength and light of a second wavelength that are above the wavelength of red light, the semiconductor material acting as a filter that blocks wavelengths below the wavelength of red light; detecting, at the photodiode, light of at least one of the first wavelength or the second wavelength; and using the detected light to determine a vital sign.

Abstract: Described herein are embodiments for reducing haptic vibrations for electronic devices. Embodiments of an oscillation reduction scheme learned offline are disclosed for minimizing the acceleration for a haptic vibrator. A pattern and braking generation module outputs a pattern signal for amplification and then for driving the haptic vibrator. An accelerometer measures acceleration induced by vibration from the haptic vibrator. The pattern and braking generation module adjusts the pattern signal based on the measured acceleration to identify an optimal amplitude for a braking signal at each time frame. Such a closed-loop braking optimization process may be implemented to achieve an optimal or desired braking scheme for enhanced user haptic feedback.

Abstract: Described herein are system and method embodiments of acoustic augmentation of haptic vibration with correlated sounds. Embodiments of a haptic driven signal crossing both vibration band and acoustic band are disclosed. The driven signal at the acoustic band enables a haptic in an electronic device to provide an audio augmentation for haptic vibration independent from a loudspeaker of the electronic device. Upon a touch on a touch surface is detected, a vibration request is generated based on the touch and user preferences. A pattern generator is used to generate a vibration signal based on the vibration request to drive a haptic vibrator for desired vibration and acoustic sound patterns.

Abstract: An apparatus including a handshake window enabler having a pair of differential inputs and a window enablement output, a common mode detector coupled to a power input and a ground input and having a handshake inhibit output, and a handshake disabler coupled to the handshake window enabler, the common mode detector, and the pair of differential inputs. If a common mode voltage that out of range (“too high”) is detected, high speed handshake protocols are such that the bus operates a lower data rate.

Abstract: Described are systems and methods take advantage of properties of sinc filters that remove frequency components at specific integer multiples of a noise frequency. In various embodiments, sampling of multi-channel systems at sufficiently high rates allows for removal of unwanted signals and harmonics from multi-sample sequences. Advantageously, a multi-sample sequence scheduling scheme eliminates the need for noise filtering one channel at a time at each channel's own sampling rate using a separate filter.

Abstract: Presented are systems and methods for automatically creating and labeling training data for training-based radio, comprising receiving, at a receiver, a frame that comprises a modulated radio frequency (RF) signal comprising a set of waveforms that correspond to payload data. The payload data comprises a sequence of random bits. In embodiments, until a stopping condition is met one or more steps are performed, comprising detecting the frame; demodulating the modulated RF signal to reconstruct the sequence of random bits; using the reconstructed sequence to determine whether the payload data has been correctly received; in response to determining that the payload data has not been correctly received, discarding it and, otherwise, accepting the sequence of random bits as a training label; associating the training label with the modulated RF signal to generate labeled training data; and appending the labeled training data to a labeled training data set.

Abstract: Presented are systems and methods for automatically decoding and demodulating radio signals in a communication network. Embodiments utilize a one-dimensional (1D) convolutional neural network (CNN) as the key architecture of a decoder that utilizes one or more 1D convolution windows to perform convolution operations on to-be-decoded or demodulated input signals received by the communication network. In embodiments, this may be achieved by receiving, at a CNN correlator implemented in a decoder, an input signal that comprises unknown data and applying to the input signal, in the discrete time domain, a convolution to obtain a CNN correlator output to which an activation may be applied to decode the input signal and output the decoded signal.

Abstract: A new architecture for buck LED drivers and buck DC-DC converters is disclosed for providing response to both line and loads. The architecture uses a new average current mode control scheme that does not use an error amplifier to regulate the current in the inductor in the buck converter. Even though there is no oscillator the switching frequency remains constant over line and load. The architecture provides a low cost solution with very fast response times.

Abstract: A transmit/receive system for an imaging device includes a transmit circuit configured to generate and output test pulses to a transducer of a probe to cause the probe to propagate an ultrasonic wave through an object. A receive circuit is configured to receive, from the transducer, a composite signal that includes the test pulses output by the transmit circuit and a reflected signal corresponding to reflected waves sensed by the transducer in response to the ultrasonic wave propagated through the object and filter the test pulses from the composite signal and output the reflected signal in accordance with a predetermined minimum frequency of the reflected signal.

Abstract: A near field communication reader includes a receiver, a transmitter, a matching network, a reader antenna coupled to the matching network; a microcontroller coupled to the receiver and the transmitter, a microcontroller; and a non-transitory computer readable media coupled to the microcontroller and including code segments and data executable on the microcontroller to control a RF driver of the transmitter based upon loading level as determined, for example, by a field detector output and RF driver settings.

Abstract: A method for suppressing voltage overshoot at an output of a voltage regulator is disclosed. The voltage regulator includes at least one channel having a first set of (high-side) transistors and a second set of (low-side) transistors. In implementations of the method, an output voltage at an output of at least one channel of a voltage regulator is detected and compared with a reference voltage. A rate of change associated with the output voltage is also determined and compared with a threshold rate of change. When the output voltage is greater than the reference voltage and the rate of change is greater than the threshold rate of change, a resistance value associated with the second set of transistors is increased from a first resistance value to a second resistance value to prevent the output voltage from overshooting and/or to suppress an output voltage overshoot.

Abstract: Embodiments of the present invention disclose methods and systems in a vehicle having high voltage (HV) for measuring isolation impedance in an EV or HEV utilizing an AC impedance measurement system. The method utilizes an extraction algorithm based on a Fourier transform to calculate phase and amplitude and then utilizes the calculated phase and amplitude to determine the isolation impedance. The isolation impedance comprises leakage resistance and total capacitance that are coupled in parallel between the high voltage system and the chassis. Embodiments of the present invention also provide a method and systems for component value self-calibration.

Abstract: Described herein are embodiments for systems and methods LED driver. In one or more embodiments, the LED driver may operate in a boost mode to charge a capacitor using a power source or in a boost mode to use the charged capacitor to provide current to a load, such as an LED string. In one or more embodiments, the LED driver uses a single inductor for boost mode operation or buck mode operation. Such embodiments simplify the LED driver and therefore provide an economic advantage. In one or more embodiments, the power source is disconnected in the buck mode, such that the capacitor may be discharged to a low voltage. Therefore, the capacitor may need smaller capacitance to deliver the same discharge energy which otherwise requires a capacitor with larger capacitance.

Abstract: A lateral double-diffused metal-oxide-semiconductor field effect (LDMOS) transistor includes a silicon semiconductor structure, a dielectric layer at least partially disposed in a trench of the silicon semiconductor structure in a thickness direction, and a gate conductor embedded in the dielectric layer and extending into the trench in the thickness direction. The dielectric layer and the gate conductor are at least substantially symmetric with respect to a center axis of the trench extending in the thickness direction, as seen when the LDMOS transistor is viewed cross-sectionally in a direction orthogonal to the lateral and thickness directions.

Abstract: Various embodiments of the present invention relates generally to an integrated circuit, and more particularly, to systems, devices and methods of incorporating a tamper detection countermeasure into a security ASIC to deter physical attacks. The tamper detection countermeasure architects an active mesh to cover a sensitive area in the security ASIC. A plurality of time-varying random numbers is generated by a random number generator (RNG), and the active mesh is driven and configured according to these random numbers. During tamper detection cycles, the active mesh is monitored with respect to the plurality of random numbers that is directly provided by the RNG. Upon a tampering attempt, a flag signal is generated and used to initialize subsequent anti-tampering actions. The active mesh may be controlled and monitored based on time-varying codes, and therefore, an adversary may not easily bypass the active mesh and attack the sensitive area.

Abstract: An optical sensor packaging system and method can include: providing a substrate, the substrate including a redistribution pad; mounting an optical sensor to the substrate, the optical sensor including a photo sensitive material formed on a photo sensitive area of an active optical side of the optical sensor; wire-bonding the optical sensor to the substrate with a first bond wire connected from the active optical side to the redistribution pad; and encapsulating the optical sensor, the first bond wire, and the photo sensitive material with an over-mold, the over-mold formed with a top surface co-planar to a surface of the photo sensitive material, the over-mold forming a vertically extended border around the photo sensitive material and around the photo sensitive area, and the over-mold formed above the first bond wire.

Abstract: A solenoid plunger movement detection system and method can include: detecting current supplied to a solenoid with a current sensor; converting the current supplied to the solenoid into a digital signal with a counter coupled to a first comparator; detecting a peak within the digital signal with a peak detector; comparing the peak to the digital signal with a second comparator coupled to the peak detector; measuring a dip from the peak and measuring a trough with the second comparator; generating a fault when the peak and the trough indicate a smooth current ramp to the solenoid; receiving configurable parameters for processing the digital signal with a signal processor; and providing configurable parameters to the counter, the second comparator, the signal processor, or a combination thereof with an interface.

Abstract: Described herein are systems and methods that manage polarization in coherent optical receivers by using analog signal processing that eliminates the need for ultra-fast, power-hungry ADCs and DSPs and that would require digitization of the full-bandwidth signal path and result in bulky and expensive circuit designs. Various embodiments of the invention provide polarization correction by using an analog polarization correction circuit that implements the equivalent of two matrix operations. This is accomplished by using analog electronics that comprises a combination of variable and unity gain amplifiers to align polarizations of input signals to generate a polarization-corrected output signal that is further aligned with the polarization frame of reference of the receiver.

Abstract: A mobile device with orientation aware audio mapping capability is disclosed. The mobile device has an aux speaker, a loud speaker, a sensor for device orientation detection, and a processor (or processors) coupled to the sensor and the speakers. Depending on the device orientation, the processor sends a mapped audio output to the speakers. The mapped audio output may be a mono audio signal or a stereo audio signal. The stereo audio output signal may be a stereo audio output signal with a balanced or biased audio power distribution between the aux speaker and the loud speaker.