Abstract: An exemplary supporting audio element for a furniture item may include a control circuit positioned within a body portion, a supporting leg, and a loudspeaker. The supporting audio element may be mounted to a furniture item, for supporting the furniture item, and configured for one or more of, without limitation, communicating with an external audio device, playing audio, controlling a function of the furniture item, voice recognition, and voice control. An exemplary supporting audio element may include a microphone connected to a phonetic recognition module, for receiving and recognizing voice commands and relaying the voice commands to the control circuit for controlling a function of the supporting audio leg and the furniture item. A furniture item may include an exemplary supporting audio element for incorporating the features thereof.

Abstract: The embodiment of the present disclosure provides a touch panel, including a plurality of sets of touch induction units including a plurality of touch induction blocks, at least a touch integrated circuit, a plurality of touch signal lines, and a plurality of subtend electrodes; wherein at least the touch integrated circuit is connected to the plurality of touch induction blocks by the plurality of touch signal lines; wherein the plurality of touch induction blocks are arranged in sequence, and lengths of the plurality of touch signal lines corresponding to adjacent touch induction blocks are different; the plurality of touch induction blocks include a plurality of touch electrodes, and areas of the plurality of touch electrodes corresponding to the adjacent touch induction blocks are different.

Abstract: This application provides a photographing device and self-adaptive method of software functions and photographing parameters thereof.

Abstract: A detection apparatus may include a light source to emit a light pulse sequence, a first scanner and a second scanner disposed in an optical path of the light pulse sequence to change propagation direction of the light pulse sequence. The first scanner alone may be capable of causing an outgoing light beam to scan along a first path, and the second scanner alone may be capable of causing the outgoing light beam to scan along a second path. The first scanner may include a reflector and a first driver; and the second scanner may include a reflective structure and a second driver, the reflective structure including at least two reflective surfaces. The second driver may drive the reflective structure to rotate so that the at least two reflective surfaces are rotated sequentially onto the optical path of the light pulse sequence.

Abstract: Provided is a doorbell system, including an indoor terminal, an outdoor terminal, and a power supply (100). The indoor terminal includes a bell controller (220) and an indoor bell (210) which are connected in parallel; the outdoor terminal includes an outdoor doorbell (310) and an outdoor switch (320); the indoor terminal, the outdoor terminal, and the power supply (100) are connected in series to form a closed loop; in response to the outdoor switch (320) being switched off, the bell controller (220) is turned on, the indoor bell (210) is short-circuited, and the power supply (100) powers the outdoor doorbell (310); and in response to the outdoor switch (320) being switched on, the bell controller (220) is turned off, and the power supply (100) powers the indoor bell (210).

Abstract: A motor, a powertrain, and a device. A plurality of first oil channels are formed between an inner surface of a housing and an outer surface of a stator core, second oil channels are formed at groove roots of coil slots of the stator core, to form double-layer oil channels at the outer surface of the stator core and the root of the coil slot of the stator core, and ensure effective cooling of the stator core and a coil winding. After cooling oil is injected from an oil filling port, a flow direction of the cooling oil in some of the second oil channels is opposite to that of cooling oil in a remaining second oil channel, so that interleaved reverse flows are implemented, and axial temperature of the stator core and the coil winding is more even.

Abstract: The present application provides a touch display panel and a display device. A plurality of touch units of the touch display panel includes a plurality of first electrode sets, a plurality of second electrode sets, and dummy electrodes. The first electrode sets include a plurality of first electrodes, the second electrode sets include a plurality of second electrodes. The first electrodes, the second electrodes, and the dummy electrodes are disposed insulatively from one another. The dummy electrodes are disposed in dummy electrode regions surrounded and formed by the first electrode sets and the second electrode sets.

Abstract: An error tolerant communication circuit includes an acquisition part that acquires a packet, in packet communication in which data is divided into units of packets and transmitted, including a control flag for controlling the packet communication and a CRC code and received from an external device; a storage part that stores, in advance, an inspection packet including at least one of a packet including a control flag indicating an ACK acknowledgment and a CRC code corresponding to the ACK acknowledgment, and a packet including a control flag indicating a negative acknowledgment and a CRC code corresponding to the negative acknowledgment; and a detection part that compares the received packet and the inspection packet with each other and detects a bit error with respect to the received packet.

Abstract: A method and apparatus for suppressing cross current including: obtaining a common-mode current and a common-mode injection voltage of each inverter in an inverter parallel system; determining a virtual damping voltage of each inverter based on the common-mode current of each inverter and a preset common-mode damping factor, where if a direction in which a current flows out of the inverter is a positive direction, the preset common-mode damping factor is a negative value, or if a direction in which a current flows into the inverter is a positive direction, the preset common-mode damping factor is a positive value; superimposing the virtual damping voltage on the common-mode injection voltage of each inverter, to obtain a target common-mode voltage of each inverter; and controlling operation of each inverter based on the target common-mode voltage of each inverter and a differential mode voltage of each inverter.

Abstract: This disclosure provides a radio frequency chip, a signal transceiver, and a communication device. The radio frequency chip includes: a chip; a coupling structure, including: a resonator, where a resonant cavity is formed, and an inner wall of the resonant cavity is made of metal; a redistribution layer, arranged above the resonant cavity and including an redistribution layer (RDL) dielectric layer; a radiator, made of metal, formed into a centro-symmetric shape, arranged on a surface that is of the dielectric layer and that faces the resonator, and accommodated in the resonant cavity; a feeder, where one end of the feeder is connected to the chip, and the other end is inserted into the resonant cavity; a packaging structure, configured to package the chip and cover the redistribution layer, so that a signal generated by the chip can be efficiently coupled to a polymer transmission line.

Abstract: The present invention discloses a method for manufacturing an insulated spherical weld gold wire for integrated circuit double-layer stacked package, which relates to the technical field of microelectronic packaging spherical weld gold wires, and specifically comprises the following steps: alloy sheet preparation; alloy rod preparation; stretching; annealing treatment; activation treatment; sputtered insulating coating; multi-winding and sub-packaging, since the polyaryletherketone insulating coating is provided on the surface of the spherical weld gold wire in a scaled integrated circuit and the double-layer stacked package of the present invention, the spherical weld gold wire is allowed to contact and cross during packaging, without affecting the product performance, cost and quality; two high-hardness and high-conductivity materials of cobalt and germanium are added, which greatly enhances the tensile strength of the material.

Abstract: The present disclosure provides a foamed PET composite board and a preparation method thereof. The foamed PET composite board provided is prepared from a raw material including the following components in parts by mass: 100 parts of PET, 10-20 parts of a regulator, 100-200 parts of an inorganic filler, 1-2 parts of a blowing agent, and 1-4 parts of PE wax, and the PET is recycled PET.

Abstract: An AI computing platform, an AI computing method, and an AI cloud computing system, the platform including: at least one computing component, each computing component includes: a processor, configured to initiate a calculation task and decompose the calculation task into a plurality of ordered subtasks according to a network topology information table stored therein; a plurality of near-memory computing modules, the plurality of near-memory computing modules connecting in pairs with the processor, and the plurality of near-memory computing modules connecting in pairs with each other, wherein the plurality of near-memory computing modules are each configured to implement different operation types, and the plurality of near-memory computing modules complete one or more of the plurality of subtasks according to the operation types they each implement.

Abstract: System information block transmission methods and communication apparatus are provided to resolve a problem that a terminal device cannot receive, on an active bandwidth part, a system information block broadcast by a network device. A network device sends a system information block to a terminal device through a first bandwidth part. When determining that a first moment satisfies a preset condition, the network device sends the system information block to the terminal device through a second bandwidth part, where the system information block is included in first dedicated signaling, and configuration information for sending the system information block by the network device is not configured on the second bandwidth part.

Abstract: This application relates to a calibration apparatus, a laser beam emission circuit and an electronic device. The calibration apparatus is applied to the laser beam emission circuit, where the laser beam emission circuit includes N lasers, and the calibration apparatus includes: a detection module, configured to detect optical power of an ith laser; and a control module, configured to adjust an ith control signal based on a detection result of the detection module. The control module is further configured to establish a mapping relationship between the ith laser and the ith control signal when the ith optical power is equal to the target optical power.

Abstract: A communications method and a communications apparatus and system are provided, and are applied to smart home systems. The method includes: a home device sends operation information to a server, where the operation information is used to indicate an operation performed by a user on the home device; and after receiving the operation information from the home device, the server determines a target account, where the target account is one of accounts associated with the home device, and sends a notification message to a target terminal device, where the notification message includes status information used to indicate a status of the home device, the status information is related to the operation information, and the target terminal device is a terminal device on which the target account is logged in.

Abstract: A direct current converter includes a three-level power switching circuit, a resonant circuit, and a controller. An output voltage at an output end of the three-level power switching circuit is used to charge the resonant circuit. The controller is configured to control power switching components in the three-level power switching circuit, so that when the resonant circuit performs charging or discharging at one half of a direct current voltage, one of the power switching components is connected to a current loop of the resonant circuit, and when the resonant circuit performs charging or discharging at the direct current voltage, two of the power switching components are connected to the current loop of the resonant circuit. By using the direct current converter, a voltage borne by the power switching component in the direct current converter during current conversion can be reduced, thereby improving reliability of the direct current converter.

Abstract: Provided is an organic electroluminescent device. The organic electroluminescent device comprises at least a first organic layer and a second organic layer, wherein the first organic layer has a relatively high electrical conductivity and comprises a first compound with deep LUMO and a second compound with deep HOMO and the second organic layer comprises a third compound having a high hole mobility. The compound combination can reduce an effect of an interface and provide better device performance, such as a reduced voltage and improved device efficiency. Further provided are a display apparatus comprising the organic electroluminescent device and an electronic equipment comprising the display apparatus.

Abstract: An optical imaging lens, in order from an object side to an image side along an optical axis, includes a first lens assembly, an aperture, and a second lens assembly. The first lens assembly includes a first lens having negative refractive power and a second lens having positive refractive power. The second lens assembly includes a third lens having positive refractive power, a fourth lens having negative refractive power, and a fifth lens having positive refractive power. The optical imaging lens satisfies: ?5<fg1/F<?3.5 and 1.5<fg2/F<2.5; F is a focal length of the optical imaging lens; fg1 is a focal length of the first lens assembly; fg2 is a focal length of the second lens assembly, thereby achieving the effect of high image quality.

Abstract: A conversion circuit, a conversion circuit precharge control method, and a photovoltaic system avoid additional costs and avoid impact on a switch caused by a current generated in a circuit at a moment when an RSCC enters an operating state, thereby ensuring operating performance of the RSCC. The conversion circuit includes a first power supply, a resonant switched capacitor converter (RSCC), and a control circuit. The RSCC includes a switch unit, an output filter unit, a first input end, a second input end, and an output end. The first power supply is configured to supply an input voltage to the RSCC. The control circuit is configured to: before controlling the RSCC to operate, control the switch unit in the RSCC to transmit, to the output filter unit, electric energy supplied by the first power supply.