Abstract: An integrated circuit includes a capacitive sensing circuit to receive signal values associated with a proximity distance to an object. A pair of low pass filters (LPFs) are coupled in parallel to the capacitive sensing circuit and include a first LPF configured with a low filtering rate and a second LPF configured with high filtering rate that is higher than that of the low filtering rate. Control logic is coupled to the pair of LPFs and estimates the proximity distance based on one or more filtered signal values received from the pair of LPFs. The logic causes the second LPF to filter the signal values while the proximity distance remains unchanged. The logic detects a change in the proximity distance beyond a threshold value. The logic causes the first LPF to filter a subsequent signal value received from the capacitive sensing circuit based on detecting the change.

Abstract: The present disclosure provides an approach that captures one or more wireless signals in a geographic area. Each one of the one or more wireless signals includes channel state information (CSI) data. The present disclosure produces a channel state information (CSI) representation based on the CSI data that indicates multiple channel responses corresponding to the one or more wireless signals. The present disclosure filters the CSI representation to remove at least one of the channel responses that correspond to a stationary object within the geographic area to produce a filtered CSI representation. The present disclosure predicts a presence of a moving object within the geographic area based on the filtered CSI representation.

Abstract: Systems, methods, and devices detect radio frequency identification devices. Methods include transmitting a signal from a transmitter of a wireless device compatible with a wireless communications protocol, and receiving, using a receiver of the wireless device, a signal from a radio frequency identification (RFID) device, the signal comprising one or more resonance parameters. Methods also include generating sensing information and an estimated distance value based, at least in part, on the received signal, the sensing information representing a sensed condition at the RFID device, and the estimated distance value representing an estimate of a distance between the wireless device and the RFID device.

Abstract: Methods and systems for a machine learning model architecture for speech enhancement system. The disclosed machine learning model architecture includes, among other things, an encoder, a decoder, and a bottleneck disposed between the encoder and the decoder. The encoder includes a plurality of encoder layers, and the decoder includes a plurality of decoder layers. Each encoder layer is connected to a corresponding decoder layer via a skip connection. Each encoder layer includes a Res2Net and a squeeze-and-excitation (SE) block. The bottleneck includes a first gated recurrent unit (GRU) layers and a second GRU layer.

Abstract: A system includes a processing device and a measurement circuit coupled to the processing device. The system further includes an auxiliary voltage supply. The processing device and the measurement circuit are powered by the auxiliary voltage supply. The measurement circuit is to apply a test voltage to a first resistor and measure a voltage drop over the first resistor. The processing device is to determine, based on at least the voltage drop, an isolation resistance value between a chassis ground node and at least one of a battery pack or a battery link of a power system.

Abstract: According to some embodiments, a battery cluster controller includes a serial interface configured to receive waveform data and a rank over a serial communication bus, a processor configured to generate a switching parameter based on the rank and the waveform data, and a modulation unit configured with the switching parameter to generate a bridge configuration signal to control a bridge for selectively connecting a battery element to an output terminal to generate a first component of a waveform.

Abstract: Technology to intelligently and adaptive share power among charging ports of a multiport power delivery (PD) system is described. In some embodiments, a method includes monitoring power consumption by at least one device of a plurality of devices. Each device of the plurality of devices is connected to a port of a plurality of ports having an allocation of system power. Monitoring the power consumption includes obtaining at least one current measurement of actual current consumption by the at least one device. The method further includes determining whether the at least one current measurement satisfies a threshold condition, and responsive to determining that the at least one current measurement satisfies the threshold condition, causing the system power to be reallocated between each port of the plurality of ports.

Abstract: According to some embodiments, a method includes connecting a first cluster controller of a first battery cluster to a serial communication bus, connecting a second cluster controller of a second battery cluster to the serial communication bus, sending synchronization data to the first cluster controller and the second cluster controller over the serial communication bus, controlling a first bridge of the first battery cluster to connect a first battery terminal of the first battery cluster to an output terminal based on the synchronization data and a first rank assigned to the first battery cluster to generate a first component of a waveform, and controlling a second bridge of the second cluster to connect a second battery terminal of the second battery cluster to the output terminal based on the synchronization data and a second rank assigned to the second battery cluster to generate a second component of the waveform.

Abstract: Systems, methods, and devices manage associations between wireless devices. Methods include identifying a plurality of wireless devices communicatively coupled to an access point and generating, using one or more processing elements, a plurality of groups of wireless devices based, at least in part, on a plurality of device classification parameters associated with the plurality of wireless devices. Methods further include generating, using the one or more processing elements, a plurality of containers for the plurality of groups of wireless devices based on network configuration information, and implementing, using the one or more processing elements, the plurality of containers in 10 the access point, wherein each of the plurality of groups of wireless devices has at least one associated container.

Abstract: Systems, methods, and devices improve medium usage by wireless devices. Methods include monitoring, using one or more processing elements, one or more data throughput metrics associated with a first wireless device, and identifying, using the one or more processing elements, a presence of medium reservation activity associated with a second wireless device. Methods also include generating, using the one or more processing elements, a mitigation signal based, at least in part, on a designated data pattern, the mitigation signal comprising a plurality of mitigation data packets configured to reduce medium reservation by the first wireless. Methods further include transmitting the mitigation signal to the first wireless device.

Abstract: An electronic circuit may be configured to obtain an input including one or more hall sensor readings, determine a current motor position based on the input and a first lookup table, determine a desired motor position based on the first lookup table on the current motor position, determine a pulse width modulation (PWM) commutation pattern based on the desired motor position and a second lookup table, and output the PWM commutation pattern within a predetermined time from obtaining the input.

Abstract: A system and method are provided for capturing a high resolution, high frame rate video using a Universal Serial Bus (USB) port. Generally, the method involves transmitting a High-Definition Multimedia Interface (HDMI) video including a number of video frames from a HDMI-source. Receiving the HDMI video and buffering and splitting each one of the video frames into a plurality of split video frames. Each of the split video frames is converted into a number of USB data packets. USB data packets from each of the split video frames are then interleaved to form a stream of USB data packets. The stream of USB data packets is coupled to a host system, which executes a program to stitch the USB data packets back together to reassemble each of the video frames, and order the video frames to restore or recreate the HDMI video.

Abstract: Disclosed are methods and systems for using softbit decoding techniques in retransmission-based networks for error concealment of packets corrupted by bit-errors. The softbit decoding techniques derive softbit information from multiple corrupted hardbits of the retransmitted packet to aid a softbit decoder in decoding the packet. The approach realizes improved error concealment capability while maintaining a simple system architecture. A retransmission softbit module is inserted between a channel decoder used for channel-decoding and demodulating a compressed packet and the softbit decoder. The retransmission softbit module may derive an accumulated softbit packet from multiple corrupted copies of the packet received from the channel decoder, make bit decisions based on the accumulated softbit packet, and derive reliability information for the bit decisions. The bit decisions may be a majority decision packet (MDP) created using a majority voting scheme.

Abstract: A controller includes a buck gate driver coupled to first high-side switch and first low-side switch of a buck-boost (BB) converter. A zero crossing detection (ZCD) comparator is coupled to first low-side switch. The ZCD comparator is to, while the BB converter operates in buck mode: detect zero current flow through inductor; and turn off first low-side switch in response to detecting the zero current. A boost gate driver is coupled to second high-side switch and second low-side switch of the BB converter. A reverse current detection (RCD) comparator coupled to second high-side switch. The RCD comparator is to, while the BB converter operates in boost mode: detect zero current flow through second high-side switch; and turn off second high-side switch in response to detecting the zero current.

Abstract: Implementations disclosed describe techniques and systems that improve wireless connectivity between devices that support multiple operation modes, by monitoring a quality of the established wireless connection and performing a change of the operation mode in response to changing conditions. The disclosed techniques include obtaining metrics characterizing quality of the wireless connection, identifying a utility function that is specific to an application supported by the wireless connection, computing multiple values of the utility function for various operation modes, based on the obtained metrics, and initiating a change of the operation mode based on a comparison of the computed utility values.

Abstract: A method can include a virtual/augmented reality (V/AR) access device receiving a list of virtual wireless devices within a predetermined virtual range. An upstream data frame from a real world wireless device can be encapsulated by the V/AR access device into an upstream packet and transmitted to a virtual wireless device. Downstream packets from the virtual wireless device can be decapsulated by the V/AR access device to access a downstream data frame. The downstream data frame can be transmitted to the real world wireless device by the V/AR access device. Corresponding devices and systems are also disclosed.

Abstract: Methods and systems for groupwise encoding for neural networks. The disclosed method includes, among other things, receiving a sparse array associated with a trained machine-learning model to be stored in memory, identifying a plurality of groupings of elements from the sparse array, wherein each element of a grouping is equidistantly positioned in the sparse array, generating a group data structure including a respective grouping, an offset of a respective grouping in the sparse array, and a distance between each element of the respective grouping in the sparse array for each grouping of the plurality of groupings, and storing each group data structure associated with the plurality of groupings in memory.

Abstract: Apparatuses and methods of operating a flexible and optimized power management unit (PMU) for multiple power supply scenarios are described. One integrated circuit includes a first terminal to couple to an unregulated power supply, a second terminal to couple to a regulated power supply, a first regulator, and a second regulator. The first regulator outputs a first supply voltage in a first configuration, and the second regulator outputs a second supply voltage in a second configuration. The first and second regulators do not operate concurrently.

Abstract: A mode-transition architecture for USB controllers is described herein. In an example embodiment, an integrated circuit (IC) controller includes a controller coupled to a slope compensation circuit, the controller to detect a transition of a buck-boost converter from a first mode having a first duty cycle to a second mode having a second duty cycle that is less or more than the first duty cycle. The controller controls the slope compensation circuit to nullify an error in an output caused by the transition. The controller can cause the slope compensation circuit to apply a charge stored in a capacitor during a first cycle to start a second cycle with a higher voltage than the first cycle.

Abstract: Wireless communication schemes and techniques are described, wherein a secondary device is configured to eavesdrop information communicated between a source and a primary device. Secondary device transmits a NACK signal to jam ACK signals from the primary device to the audio source, forcing a retransmit of audio information from the source to the primary, and available over an eavesdropping link between the secondary device and the source.