Abstract: Embodiments for a packaged semiconductor device and methods of making are provided herein, which includes a packaged semiconductor device including: a semiconductor die; a carrier; a plurality of electrical connections formed between the semiconductor die and the carrier; an electrical isolation layer that covers an outer surface of each of the plurality of electrical connections; and a conductive underfill structure between the semiconductor die and the carrier, and surrounding each of the plurality of electrical connections, wherein the electrical isolation layer electrically isolates each electrical connection from the conductive underfill structure.

Abstract: A method is provided for managing a machine learning system. In the method, a database is provided for storing a plurality of data elements. A plurality of machine learning models is trained using assigned subsets of the plurality of data elements. The outputs of the plurality of machine learning models is provided to an aggregator. During inference operation of the machine learning system, the aggregator determines a final output based on outputs from the plurality of models. If it is determined that an assigned subset must be changed because, for example, a record must be deleted, then the data element is removed from the selected assigned subset. The affected machine learning model associated with the changed assigned subset is removed, and retrained using the changed assigned subset.

Abstract: A distributed radar system, apparatus, architecture, and method is provided for coherently combining physically distributed radars to jointly produce target scene information in a coherent fashion without sharing a common local oscillator (LO) reference by configuring a first (slave) radar to apply fast and slow time processing steps to target returns generated from a second (master) radar, to compute an estimated frequency offset and an estimated phase offset between the first and second radars based on information derived from the fast and slow time processing steps, and to apply the estimated frequency offset and estimated phase offset to generate a bi-static virtual array aperture at the first radar that is coherent in frequency and phase with a mono-static virtual array aperture generated at the second radar, thereby achieving better sensitivity, finer angular resolution, and low false detection rate.

Abstract: A method is provided for authenticating one device to another device. In the method, a first device proves to a second device that a first credential comprising multiple first attributes is valid. The second device proves to the first device that a second credential comprising multiple second attributes is valid. The first device reveals a first attribute of the multiple first attributes to the second device. The second device verifies the first attribute and decides whether to continue revealing attributes. If continuing, the second device reveals to the first device a first attribute of the multiple second attributes. The first device verifies the first attribute of the multiple second attributes. The first device decides whether to continue revealing attributes. Attributes can be revealed until one of the first or second devices end the method or until no attributes of the multiple first and second attributes remain to be revealed.

Abstract: A waveguide antenna is disclosed, comprising: a first plurality of slots, for producing a beam having a first radiation pattern at a first resonant frequency; and a second plurality of slots, for producing a beam having a second radiation pattern at a second resonant frequency. A method of operation of the waveguide antenna is also disclosed, comprising: operating the transceiver at a first frequency to detect objects in a first field of view; and operating the transceiver at a second frequency to detect objects in a second field of view.

Abstract: A method for securing a multi-band wireless communication system includes authenticating a first station (STA) multi-link device (MLD) with a second STA MLD comprising negotiating a group of keys in a key negotiation (KN) band, the group of keys comprising a Pair-Wise Transient Key and a Group Transient Key. The KN band is one of a plurality of frequency bands. The first STA MLD includes a plurality of first STA links. The second STA MLD includes a plurality of second STA links. Each of first STA links and each corresponding second STA link are configured to transceive over a respective one of the plurality of frequency bands. Authenticating the first STA MLD in the KN band authenticates the first STA MLD for each of the frequency bands.

Abstract: Embodiments of a device and method are disclosed. In an embodiment, a physical layer (PHY) device that is compatible with the IEEE 802.3 standard and that utilizes carrier-sense multiple access with collision detection (CSMA/CD) for media access control to a shared media is disclosed. The PHY device includes a physical coding sublayer transmitter (PCS-TX), a physical medium attachment transmitter (PMA-TX), a physical coding sublayer receiver (PCS-RX), a physical medium attachment receiver (PMA-RX), and a media access priority manager configured to initiate transmission of an indication of a priority of a frame that is to be transmitted onto the shared media.

Abstract: Various embodiments relate to a method for transmitting hybrid automatic repeat request (HARQ) coded data by an access point, including: receiving by the access point buffered frame information from a plurality of stations; determining the HARQ coding information and resources for each of the plurality of stations; transmitting a first trigger frame including the HARQ coding information and resource information for each of the plurality of stations; receiving a first HARQ transmission from the plurality of stations; and decoding the received HARQ transmission from the plurality of stations.

Abstract: An apparatus in accordance with embodiments includes front-end radar circuitry and storage circuitry. The front-end radar circuitry generates a digital data stream that represents received radar wave signals and provides a cryptographic hash using the digital data stream, timing information, and apparatus-specific data. The storage circuitry stores the digital data stream and the cryptographic hash indicative of authenticity of the digital data stream.

Abstract: A device (100) includes a substrate (101-106) with an upper semiconductor layer, buried semiconductor layer, and a DTI structure (107-108) defining an active device region; a dummy LDMOS device (121) in the active device region which includes a grounded drain (D1) in a drift region (105), a source (S1, S2) in a body region (109) which extends to contact the buried semiconductor layer, a gate electrode (G1-G4) formed so that the source and at least part of the gate electrode are connected with the body implant region, and a buffering semiconductor layer portion (104) adjacent the DTI structure; and one or more active LDMOS devices (122) positioned in the active device region to be separated from the DTI structure by the dummy LDMOS device (121) which reduces an electric field across the sidewall insulator layer (107) in the DTI structure.

Abstract: A wireless ranging system (700) estimates a distance (703) between wireless devices (701, 702) by calibrating the devices through exchanging calibration packets (512, 524) to adjust transceiver settings for performing phase measurements at the wireless devices, and then transmitting a measurement packet (704) from a first wireless device to a second wireless device to synchronize the first and second wireless devices and to perform a two-way IQ data capture sequence at different carrier frequencies during processing of the measurement packet so that the first and second wireless devices each measure phase values for each of the plurality of different carrier frequencies, where the phase values at each of the first and second wireless devices are processed to generate a combined phase offset vector which is processed to determine a first estimated distance between the first and second wireless devices.

Abstract: A wireless charger includes multiple transmitter coils, first and second drivers, and a controller. The transmitter coils are arranged close to and/or overlap with each other. The first driver is coupled with at least one of the transmitter coils to drive the transmitter coil to communicate with and/or provide power over a first channel to receiver devices. The second driver is coupled with at least another one of the transmitter coils to drive the transmitter coil to communicate with and/or provide power over a second channel to receiver devices. The controller is coupled with the first and second drivers and enables only one of the first and second drivers at a time during a first stage.

Abstract: A communication device performs a backoff procedure to determine when a first channel in a first radio frequency (RF) band is idle in connection with reserving an aggregate communication channel, which includes a first frequency portion in the first RF band and a second frequency portion in a second RF band, for a frame exchange. In response to determining that the first channel is idle, the communication device transmits a first packet that reserves at least the first channel for a first particular time duration. In connection with determining that the first channel is idle, the communication device performs one or more energy level measurements in a second channel in the second RF band to determine whether the second channel is idle. The communication device transmits a second packet that reserves at least the second channel for a second particular time duration in connection with reserving the aggregate communication channel.

Abstract: A voltage reference circuit including a resistive track having a first force contact and a second force contact. The first and second force contacts configured to pass a current through the resistive track. A first sense contact, a second sense contact and a third sense contact are arranged at different positions along the resistive track between the first and second force contacts and the sense contacts are arranged to define a first resistor and a second resistor. A first component arrangement includes a P-N junction which has a temperature dependent voltage bias; a second component arrangement. One or both of the first component arrangement and the second component arrangement provide for a counter-bias voltage. The counter bias voltage counters the temperature dependent voltage bias of the P-N junction such that the voltage reference circuit provides a constant output reference voltage.

Abstract: A method for capacitive touch sensing with high safety integrity includes measuring at least one of a first mutual-capacitance of an electrode pair comprising two of a first electrode, a second electrode and a third electrode, and a self-capacitance between the third electrode and a body biased to a fixed voltage. A contact of the body to a dielectric overlaying each of the first electrode, the second electrode and the third electrode is detected by comparing at least one of the first mutual-capacitance of the electrode pair to a first reference range, and the self-capacitance to a second reference range.

Abstract: A first node for updating at least one security rule in a controller area network, CAN, having a CAN bus and a host processor, is described, The first node includes: a transceiver configured to transmit and receive messages on the CAN bus; a CAN controller operably coupled to the transceiver and configured to determine an identifier (ID) contained with received messages; and a memory configured to contain a list of IDs of at least one second node that the first node is allowed to transmit messages to and/or receive messages from. The memory includes a privileged node ID configured to identify, and associated solely with, the first node and the CAN controller is configured to generate at least one CAN security rule update message to be sent to the at least one secondary node in the CAN that updates at least one security rule employed by the at least one secondary node in the CAN.

Abstract: A thermal increase system includes a cavity, a first electrode disposed in the cavity, a second electrode disposed in the cavity, and a self-oscillator circuit that produces a radio frequency signal that is converted into electromagnetic energy that is radiated into the cavity by the first and second electrodes. The self-oscillating circuit includes the first electrode and the second electrode. In an embodiment, the first electrode is a first plate in a capacitor structure and the second electrode is a second plate in the capacitor structure. The cavity and a load contained within the cavity operates as a capacitor dielectric of the capacitor structure. A resonant frequency of the self-oscillator circuit is at least partially determined by a capacitance value of the capacitor structure.

Abstract: A key fob including at least one wireless communication circuit, a power supply node coupled to provide power to the at least one wireless communication circuit, a battery node, a battery power circuit, and an inductive power circuit. The battery power circuit provides power when a battery with sufficient charge is provided. The inductive power circuit only provides power when energized with inductive power when the battery is not provided or is not sufficiently charged. The inductive power circuit may include a rectifier circuit and an inductor and may further include regulator circuitry. The inductive power circuit does not perform wireless communications thereby simplifying circuitry and operation of the key fob and a corresponding access system. Since only configured to transfer power, the inductive power circuit may be optimized for power transfer. The access system inductively couples power to the key fob when within a predetermined coupling zone distance.

Abstract: A temperature correction circuit and method for maintaining a transistor of a power amplifier in a linear operating region of the transistor. The temperature correction circuit includes a first current source circuit operable to provide a first correction current proportional to an absolute temperature of a semiconductor die including the transistor. The temperature correction circuit also includes a second current source circuit operable to provide a second correction current proportional to a change in temperature of a part of the semiconductor die in which the transistor is located during operation of the transistor. The temperature correction circuit further includes a third current source circuit operable to provide a gain selection current. The temperature correction circuit also includes circuitry for producing a reference current from the first and second correction currents and the gain current.

Abstract: A transaction controller orders transactions between a master device and a slave device, where the transactions may be received out-of-order. First and second transactions have respective first and second sets of data packets. The transaction controller includes a transaction table, a first ordering counter, and a first sequence counter having first and second values when the first and second transactions are initiated. The first and second values are stored in the transaction table based on first and second transaction identifiers (TIDs) that are associated with the first and second transactions. The transaction controller determines, based on the second value, the second TID, and a current value of the first ordering counter, whether the first and second sets of data packets were received out-of-order. Based on the determination, the second set of data packets is transmitted to the master device after the first set of data packets.