Abstract: A network interface device operates in a normal transmit operating mode in which the network interface device continually receives transmission symbols from a link partner via the communication link. The network interface device determines that receive circuitry of the network interface device is to transition to a low power mode in response to receiving a sleep signal from the link partner. The network interface device then operates according to a quiet/refresh cycle of the low power mode to conserve power. The quiet/refresh cycle corresponds to a time schedule that includes a refresh time window in which receive circuitry of the network interface device is to be powered to receive a refresh signal from the link partner Immediately after transmission of the sleep signal, the network interface device transitions to a quiet time window of the time schedule in which the network interface device ignores transmissions from the link partner.

Abstract: A receiver includes an interface and a processor. The interface is configured to receive a signal including symbols carrying bit values in respective symbol intervals, and to convert the received signal into a serial sequence of digital samples, the received signal being modulated using a Differential Manchester Encoding (DME) scheme that (i) represents a first bit value by a first symbol type having a level transition in the corresponding symbol interval and (ii) represents a second bit value by a second symbol type having a constant level in the corresponding symbol interval. The processor is configured to derive an error signal from the digital samples, and to produce a quality measure of the received signal based on the derived error signal.

Abstract: An Ethernet Physical Layer (PHY) device includes a link interface and a transceiver. The link interface connects to a full-duplex wired Ethernet link. The transceiver receives first Ethernet signals carrying first data at a first data rate over toe Ethernet link at a first baud rate, transmits second Ethernet signals carrying second data at a second data rate higher than the first data rate, over the Ethernet link, at a second baud rate that is higher than the first baud rate, resamples a reference signal related to the second Ethernet signals to match the first baud rate, generates from the resampled reference signal, at the first baud rate, an echo cancelation signal indicative of an echo signal originating from the second Ethernet signals and interfering with reception of the first Ethernet signals, and suppresses the echo signal from the first Ethernet signals using the echo cancelation signal.

Abstract: In an example embodiment, a deep neural network is used to predict a classification for ingested job listings for a piece of information that is missing from the ingested job listings. More particularly, the deep neural network may comprise a multi-layer perceptron with a plurality of rectifier linear units (ReLUs). For a given category of information, a plurality of different information entities may be evaluated by the multi-layer perceptron against features of a job listing, producing a probability prediction of reach of those information entities for the job listing. The information entity with the highest predicted probability is identified by the multi-layer perceptron as the predicted information entity for that given category of information for the job listing.

Abstract: A second device receives a first synchronization signal transmitted by a first device for training synchronization between the second device and the first device. The second device then transmits one or more initial synchronization response signals to the first device. The one or more initial synchronization response signals are from among a fixed number of synchronization response signals that the second device is configured to transmit to the first device. After transmission of the one or more initial synchronization response signals, the second device receives a second synchronization signal from the first device. After receiving the second synchronization signal, the second device continues transmission of synchronization response signals to the first device until the fixed number of synchronization response signals are transmitted from the second device to the first device.

Abstract: An Ethernet Physical Layer (PHY) device includes a link interface and a transceiver. The link interface connects to a full-duplex wired Ethernet link. The transceiver receives first Ethernet signals carrying first data at a first data rate over toe Ethernet link at a first baud rate, transmits second Ethernet signals carrying second data at a second data rate higher than the first data rate, over the Ethernet link, at a second baud rate that is higher than the first baud rate, resamples a reference signal related to the second Ethernet signals to match the first baud rate, generates from the resampled reference signal, at the first baud rate, an echo cancelation signal indicative of an echo signal originating from the second Ethernet signals and interfering with reception of the first Ethernet signals, and suppresses the echo signal from the first Ethernet signals using the echo cancelation signal.

Abstract: An Ethernet physical layer (PHY) transceiver includes a transmitter and a receiver. The transmitter is configured to precode a first data stream by summing two or more mutually-delayed replicas of the first data stream, and to transmit the precoded first data stream over a full-duplex wired channel to a peer Ethernet PHY transceiver. The receiver is configured to receive a second data stream from the peer Ethernet PHY transceiver over the full-duplex wired channel, and to decode the received second data stream while the transmitter concurrently is transmitting the precoded first data stream.

Abstract: Query execution status may be tracked to selectively route queries to resources for execution. The completion of queries executing at computing resources obtained from a pool of computing resources configured to execute queries may be detected. Instead of returning the computing resources to the pool, the computing resources may be identified as available in resource management data. When another query is received, the resource management data may be evaluated to select an available computing resource. The query may then be routed to the selected computing resource for execution.

Abstract: Queries may be received and executed by a managed query service. A query directed to data sets that are separately stored in a remote data store may be received. Computing resources to execute the query may be provisioned from a pool of computing resources that are configured to execute queries. The query may be routed to the provisioned computing resources to execute the query. Results may be obtained from the computing resource and provided to a submitter of the query.

Abstract: A receiver includes an interface and a processor. The interface is configured to receive a signal including symbols carrying bit values in respective symbol intervals, and to convert the received signal into a serial sequence of digital samples, the received signal being modulated using a Differential Manchester Encoding (DME) scheme that (i) represents a first bit value by a first symbol type having a level transition in the corresponding symbol interval and (ii) represents a second bit value by a second symbol type having a constant level in the corresponding symbol interval. The processor is configured to derive an error signal from the digital samples, and to produce a quality measure of the received signal based on the derived error signal.

Abstract: The configuration of computing resources for executing queries may be selected. A comparison of the configuration of computing resources that executed previous queries may be made to select the configuration of computing resources for a received query. A historical query execution model maybe applied, in some embodiments, to determine a resource configuration for computing resources to execute a query. The computing resources may be selected from available computing resources according to the determined resource configuration.

Abstract: Data symbols in an input signal are detected with a slicer of a DFE of a transceiver device. An output of a feedback filter of the DFE is generated, during a particular clock cycle, based on a first set of one or more data symbols detected during first one or more previous clock cycles and a second set of one or more data symbols detected during second one or more previous clock cycles. The second set is separated from the first set by a third set of one or more data symbols detected during third one or more clock cycles that occur after the first one or more clock cycles and before the second one or more clock cycles, where the output is generated without use of the third set of symbols. The output is subtracted from the input signal to generate an equalized input to the slicer.

Abstract: An air pre-cleaning assembly includes a motor that has a stator and a rotor shaft assembly configured with a fan. The motor is disposed at the upstream of the fan, and rotation of the fan is configured to yield an air flow passing through the motor. A cyclone separating element on the upstream path of the air flow on the motor includes an air inlet, a separating chamber, a dust collecting chamber, and an air outlet. The separating chamber is communicated with the air inlet. The dust collecting chamber is communicated with the separating chamber and located at its outer periphery. The air outlet is communicated with the separating chamber and located at its inner periphery. The motor is located at the downstream of the air outlet. The cyclone separating element allows clean air filtered by cyclone filtering to pass through the motor via the air outlet.

Abstract: Methods and systems provide for using echo measurements, to detect cable faults in cables of vehicular communication networks.

Abstract: An Ethernet transceiver includes physical-layer (PHY) circuitry and a signal-loss detector. The PHY circuitry is configured to receive a signal from a peer transceiver, to process the received signal in a series of digital PHY-level processing operations, and to output the processed signal for Medium Access Control (MAC) processing. The signal-loss detector is configured to receive, from the PHY circuitry, a digital version of the received signal, and to detect a signal-loss event based on an amplitude of the digital version of the received signal.

Abstract: A second device receives a first synchronization signal transmitted by a first device for training synchronization between the second device and the first device. The second device then transmits one or more initial synchronization response signals to the first device. The one or more initial synchronization response signals are from among a fixed number of synchronization response signals that the second device is configured to transmit to the first device. After transmission of the one or more initial synchronization response signals, the second device receives a second synchronization signal from the first device. After receiving the second synchronization signal, the second device continues transmission of synchronization response signals to the first device until the fixed number of synchronization response signals are transmitted from the second device to the first device.

Abstract: Methods and systems provide for fault diagnosis in a vehicular communication network. The methods and systems utilize a trained neural network model which is downloaded to a local computer associated with the vehicular communication network of a given vehicle and which applies inputs from the given vehicle to output maintenance recommendations for the given vehicle.

Abstract: Embodiments described herein provide a method for waking a first node in a low power mode. A network comprises at least the first node and a second node in an awake mode where the first and second nodes have respective transceivers coupled via substantially fixed communication pathways. The transceiver of the second node obtains a training signal designed to be transmitted at a pre-defined symbol rate and transmits the training signal at a symbol rate lower than the pre-defined symbol rate to the physical layer of the first node for a predetermined duration of time. The second node, in response to receiving the training signal transitions from the low power mode to an awake state.

Abstract: This application provides a radio interference detection method and an apparatus. The method includes: obtaining an available frequency configured for a current cell; measuring signal information of a signal received on the available frequency; and determining, based on the signal information of the signal, whether there is radio interference. The available frequency is obtained based on information about a broadcast channel, and signal strength of the available frequency of the current cell is preferentially scanned, to determine whether there is radio interference. If there is interference on the available frequency of the current cell, corresponding processing can be performed quickly. According to the application, because a relatively small quantity of frequencies are scanned preferentially, an effective interference detection speed can be increased quickly.

Abstract: A method of synchronizing master and slave nodes on a high-speed Ethernet connection includes sending a first plurality of synchronization pulse units from the master, receiving at the master a second plurality of synchronization pulse units sent by the slave in response to receipt of the first plurality of synchronization pulse units, monitoring at the master for receipt of a first synchronization pulse unit from the second plurality, having a predetermined characteristic, monitoring at the master for receipt of at least one further synchronization pulse unit, from the second plurality, having the predetermined characteristic, and recognizing receipt of the second plurality upon receipt of the first and at least one further synchronization pulse unit having the predetermined characteristic, where the first synchronization pulse unit and the at least one further synchronization pulse unit meet either a first temporal spacing condition or an integer multiple of the first temporal spacing condition.