Abstract: Embodiments of this application disclose a network device, a device communication method, and a communication system. The network device in embodiments of this application includes: a bus management module, configured to adjust at least one of a bus scale, a channel capacity, or a power supply or receiving state, where the bus scale includes at least one of a quantity of devices accessing a bus and a link length, the channel capacity includes a bandwidth, and the power supply or receiving state includes at least one of sequential power-on, power-on of a new node, or power-off of a faulty node.

Abstract: A master node, a slave node, a power supply method, and a related device, wherein the master node and a plurality of first slave nodes are included in a point-to-point topology, and the master node is configured to: connect links between the master node and all of N first slave nodes in a time-division manner; obtain respective powers of the N first slave nodes; and supply power to a target slave node in the N first slave nodes based on the respective powers of the N first slave nodes and an output power of the master node.

Abstract: A signal processing method applied to a transmit end includes obtaining an LDPC encoded signal based on a to-be-sent signal; then, modulating the LDPC encoded signal into a PAM8 symbol; and further, sending the PAM8 symbol to a receive end through a network cable.

Abstract: An echo cancellation method and a transceiver to reduce dependence of a system on an enob of a DAC, and improve performance of echo cancellation. The transceiver includes an echo cancellation apparatus, a transmit link, a receive link, and a hybrid circuit. The transmit link and the receive link are coupled to a transmission line by using the hybrid circuit. The echo cancellation apparatus includes a first signal converter, a slicer, a first subtractor, a second digital-to-analog converter, a second subtractor, and a third subtractor.

Abstract: A communication interface for use at a first end of a communication link including a number of communication lanes greater or equal to two. The communication interface includes a logic configured to cooperate with another communication interface at a second end of the communication link to send a data frame to the second end over the communication lanes. The logic is configured to store a communication lane status for each of the communication lanes, and when detecting that the communication lane status for a specific communication lane has changed to a determined status. The logic is configured to send the changed communication lane status for the specific communication lane to the communication interface at the second end and split a data frame accordingly. The communication interface provides seamless data communication between the first end and the second end of the communication link, even in case of a lane failure.

Abstract: In a data transmission method, if a to-be-transmitted second data frame exists in a process in which a network device transmits a first data frame, and a priority of the second data frame is higher than a priority of the first data frame, the network device determines a frame type of the second data frame as an express frame. The network device adjusts a frame type of the first data frame to a preemptable frame if the frame type of the first data frame is an express frame. Then, the network device stops transmitting the first data frame, and starts to transmit the second data frame.

Abstract: Embodiments of this application disclose a switch and a communication system. The switch in embodiments of this application includes a first laser and a first optical splitter. The first laser is configured to provide a first laser light. The first optical splitter is configured to split the first laser light into a first downstream laser light and a second downstream laser light, where the first downstream laser light is used for transmitting information to a first terminal, and the second downstream laser light is used for transmitting information to a second terminal.

Abstract: An information sharing method includes that a first redundancy device generates a first supervision frame that includes device information of the first redundancy device, where the first supervision frame detects whether a second redundancy device on a transmission link on which the first redundancy device is located in the redundancy network is in a working state, where the first redundancy device is any redundancy device in the redundancy network; and where the first redundancy device sends the first supervision frame to the second redundancy device in a multicast manner. The device information of the redundancy device is carried in the supervision frame.

Abstract: An echo cancellation method and a transceiver to reduce dependence of a system on an enob of a DAC, and improve performance of echo cancellation. The transceiver includes an echo cancellation apparatus, a transmit link, a receive link, and a hybrid circuit. The transmit link and the receive link are coupled to a transmission line by using the hybrid circuit. The echo cancellation apparatus includes a first signal converter, a slicer, a first subtractor, a second digital-to-analog converter, a second subtractor, and a third subtractor.

Abstract: An information sharing method includes that a first redundancy device generates a first supervision frame that includes device information of the first redundancy device, where the first supervision frame detects whether a second redundancy device on a transmission link on which the first redundancy device is located in the redundancy network is in a working state, where the first redundancy device is any redundancy device in the redundancy network; and where the first redundancy device sends the first supervision frame to the second redundancy device in a multicast manner. The device information of the redundancy device is carried in the supervision frame.

Abstract: In a data transmission method, if a to-be-transmitted second data frame exists in a process in which a network device transmits a first data frame, and a priority of the second data frame is higher than a priority of the first data frame, the network device determines a frame type of the second data frame as an express frame. The network device adjusts a frame type of the first data frame to a preemptable frame if the frame type of the first data frame is an express frame. Then, the network device stops transmitting the first data frame, and starts to transmit the second data frame.

Abstract: The present application discloses a portable thermoelectric potential detector, which is small in size and easy to carry. A portable thermoelectric potential detector includes a test fixture for fixing a sample to be tested, a probe assembly unit for detecting the sample to be tested, and a collection and control unit for controlling detecting of the probe assembly and collecting a voltage signal of the probe assembly; the probe assembly unit includes two probe assemblies, each probe assembly includes a probe for loading on the surface of the sample to be tested and a linear motor for driving the probe to move and load on the surface of the sample to be tested; the collection and control unit is electrically connected to the linear motor, and is further configured to transmit a first control signal for controlling a moving distance and a loading force of the linear motor.

Abstract: The present application discloses a portable thermoelectric potential detector, which is small in size and easy to carry. A portable thermoelectric potential detector includes a test fixture for fixing a sample to be tested, a probe assembly unit for detecting the sample to be tested, and a collection and control unit for controlling detecting of the probe assembly and collecting a voltage signal of the probe assembly; the probe assembly unit includes two probe assemblies, each probe assembly includes a probe for loading on the surface of the sample to be tested and a linear motor for driving the probe to move and load on the surface of the sample to be tested; the collection and control unit is electrically connected to the linear motor, and is further configured to transmit a first control signal for controlling a moving distance and a loading force of the linear motor.

Abstract: A magnetic system containing a plurality of stacked layer arrays, each of which includes a first anti-ferromagnetic (AFM1) layer, a heavy metal (HM) layer formed of a material having strong spin-orbit coupling, and, optionally, a ferromagnetic (FM) layer or a second anti-ferromagnetic (AFM2) layer. Also disclosed is a method of preparing such a magnetic system.

Abstract: The invention relates to magnetic sensor comprising a sensor element that is able to generate a spin-orbit torque (SOT). The SOT acts as a transverse bias field to set a proper working point for the sensor and so ensure that it responds linearly to an external field with maximized sensitivity. It also functions as a longitudinal bias field to suppress domain wall nucleation and propagation. The use of SOT effective field for biasing not only simplifies the sensor structure but also makes it possible to make an ultrathin and semi-transparent magnetic sensor.

Abstract: A magnetic system containing a plurality of stacked layer arrays, each of which includes a first anti-ferromagnetic (AFM1) layer, a heavy metal (HM) layer formed of a material having strong spin-orbit coupling, and, optionally, a ferromagnetic (FM) layer or a second anti-ferromagnetic (AFM2) layer. Also disclosed is a method of preparing such a magnetic system.