Abstract: A lighting device is disclosed. The lighting device includes a core body that is shaped such that a light emitting diode sheet may be wrapped around the surface of the core body. A groove of a bottom housing of the lighting device is secured to a bottom portion of the core body and a groove of a top housing is secured to a top portion of the core body. The lighting device includes a hollow cavity extending from the bottom housing into the core body. The hollow cavity may be positioned over a portion of a tripod or mount, and a clamp is utilized to secure the lighting device to the tripod or mount. The lighting device may be activated, thereby causing a plurality of light emitting diodes of the light emitting diode sheet to emit light 360 degrees outwards from the core body of the lighting device.

Abstract: A far-field speech support with a lens function and an electrical device are provided. The far-field speech support includes: a base, a far-field speech board installation portion disposed on the base and configured to install a far-field speech board, a transparent light guide plate disposed on a bottom side of the far-field speech board installation portion, a buckle structure disposed on the base and configured to install an infrared receiving head assembly, and an infrared reflective portion disposed corresponding to the transparent light guide plate and disposed below the infrared receiving head assembly. The far-field speech support acts as a lens, provides an installation space for the far-field speech board, and facilitates installation of the far-field speech board.

Abstract: Disclosed are an Internet of Things data transmission data and system. The method comprises a downlink transmission step: obtaining first downlink data delivered by an Internet of Things platform; parsing the first downlink data to obtain a target meter of a metering task and a forwarding priority in a first packet; obtaining second downlink data; adding the second downlink data to an asynchronous delivery queue according to the forwarding priority; and delivering the second downlink data to the target meter according to the asynchronous delivery queue, so that the target meter completes the metering task. The present method makes full use of concentrators as intermediate devices while maintaining the integrity of core task data, lowers the channel requirement due to asynchronous execution and is especially suitable for periodic metering tasks.

Abstract: The control system includes a PFC circuit and a sampling control circuit, and the PFC circuit includes an inductor, a first power supply drive circuit, and a first bridge arm and a second bridge arm that are connected in parallel, and a first bridge arm midpoint is a serial connection point between a first upper bridge arm and a first lower bridge arm of the first bridge arm. The sampling control circuit is configured to control, based on voltages of two ends of an alternating current power supply, the first lower bridge arm to be turned on, so that the first power supply drive circuit starts charging. The sampling control circuit is further configured to: when charging duration of the first power supply drive circuit reaches first target duration, control the first lower bridge arm to be turned off, so that the first power supply drive circuit completes charging.

Abstract: A wireless power supply apparatus includes a controller, a beamforming module, and an antenna array. When direction finding information is obtained, the controller determines an electromagnetic wave transmission direction, and transmits information about the transmission direction to the beamforming module. The beamforming module aggregates energy of electromagnetic waves corresponding to a plurality of radio frequency signals to the transmission direction. The antenna array receives the direction finding information, and transmits the electromagnetic waves.

Abstract: Systems, methods, and apparatuses for providing dynamic, prioritized spectrum utilization management. The system includes at least one monitoring sensor, at least one data analysis engine, at least one application, a semantic engine, a programmable rules and policy editor, a tip and cue server, and/or a control panel. The tip and cue server is operable utilize the environmental awareness from the data processed by the at least one data analysis engine in combination with additional information to create actionable data.

Abstract: Systems and methods are provided for a compact eye-tracking camera assembly. The camera incorporates a lens and image sensor whose principal axis is parallel to the plane of the display surface, and a compound angle mirror configured to redirect incident IR light along the principal axis. The compound angle mirror has a first angle of approximately 45 degrees relative to a first axis, and a second angle of approximately 15-22 degrees (e.g., 18 degrees) relative to a second axis that is orthogonal to the first axis. The first and second axes are substantially parallel to the plane of the display surface.

Abstract: The invention provides an algorithm-driven method that uses a set of mathematical techniques and numerical procedures to carry out an automatic design for therapeutic insoles. Objectives of the invention include relieving soft tissue overpressure, aligning bone segments and redistributing loads located in specific zones of the foot.

Abstract: The present disclosure provides an encoding and decoding method, apparatus, and devices. The encoding and decoding method includes the following steps: determining to use a decoder-side motion vector refinement mode for a current block if the conditions are all satisfied; and if it is determined to use the decoder-side motion vector refinement mode for the current block, performing motion compensation on the current block.

Abstract: A support on the cleaning device includes trays; a water outlet channel is formed on each tray; a height difference is formed between two sides of the water outlet channel, such that when flowing in a direction from high to low, a fluid m the tray and used for cleaning can cross the water outlet channel and is kept from flowing out through the water outlet channel, and when the fluid in the tray flows in a direction from low to high, the fluid can flow out through the water outlet channel. The height difference formed between the two sides of the water outlet channel is used to combine cleaning and scraping of the cleaning device by the tray with discharging of the fluid; the cleaning device is scraped clean by a high end formed by the height difference.

Abstract: The present disclosure provides encoding and decoding methods, apparatus and devices thereof. The method includes: if the conditions are all satisfied, determining to use a bidirectional prediction compensation mode for a current block; if determining to use the bidirectional prediction compensation mode for the current block, performing motion compensation for the current block.

Abstract: An input switching circuit dynamically connects, based on an input mapping table, input streams to inputs of a wavefront pre-transform circuit. An output switching circuit dynamically connects, based on an output mapping table, output data at outputs of the wavefront pre-transform circuit to transport streams. A controller controls, based on a wiping command, at least one of the input and output switching circuits to alter at least one of the input and output mapping tables such that the at least one of the input and output switching circuits is disabled for connection. A first subset of the transport streams operates in a foreground mode available to a user and is transported for storage in remote storage sites at a network and a second subset of the transport streams operates in a background mode available to an administrator and is not transported for storage in the remote storage sites.

Abstract: Various illustrative aspects are directed to a data storage device, comprising one or more disks; an actuator mechanism configured to position one or more heads proximate to one or more disk surfaces of the one or more disks; and one or more processing devices, comprising an actuator mechanism control system configured for controlling the actuator mechanism. The one or more processing devices are configured to: output a multi-rate excitation to at least one multi-rate notch filter of the actuator mechanism control system; detect a frequency response of the actuator mechanism in response to the multi-rate excitation; and calibrate the at least one multi-rate notch filter of the actuator mechanism control system, based at least in part on the detected frequency response of the actuator mechanism.

Abstract: An automatic vending machine includes a cabinet, a plurality of item columns, a pickup port and a delivery apparatus, and the delivery apparatus includes a hopper and a hopper drive mechanism. An item dispensing method of the automatic vending machine includes: determining, according to items to be purchased, all of item combination manners having a lowest number of item dispensing operations as candidate item combination manners; determining all of pickup manners for picking up items in each of the candidate item combination manners; determining all of item dispensing paths in one-to-one correspondence to all of pickup manners of all of the candidate item combination manners; and selecting, from all of the item dispensing paths, an item dispensing path having a highest efficiency as a target item dispensing path, and controlling, based on the target item dispensing path, the hopper to dispense items.

Abstract: Various illustrative aspects are directed to a data storage device, comprising one or more disks; an actuator mechanism configured to position heads proximate to a recording medium of the disks; a spindle motor configured for rotating the one or more disks; and one or more processing devices comprising a servo control processor. The servo control processor is configured to receive a spindle speed error signal indicative of an error in a rotational speed of the spindle motor. The servo control processor is further configured to output an initial frequency offset signal, wherein the initial frequency offset signal is proportional to the spindle speed error signal.

Abstract: A power converter includes a primary side circuit, a secondary side circuit, a transformer, and a controller. A primary side of the transformer is connected to the primary side circuit, and a secondary side of the transformer is connected to the secondary side circuit. The primary side circuit includes a resonant circuit. The secondary side circuit is configured to supply electric energy to the transformer. The transformer is configured to supply the electric energy to the primary side circuit. The primary side circuit is configured to convert the electric energy. The controller is connected to the secondary side circuit, and is configured to control, in a control cycle, the secondary side circuit to supply the electric energy to the transformer. Duration of the control cycle is greater than or equal to duration of a resonance cycle of the resonant circuit.

Abstract: Disclosed herein is an electronic device that includes a pedestal that extends from a mounting surface of a base of the electronic device. The electronic device also includes a thermal interface material that is interposed between an interface surface of the pedestal and a data processing component, is in direct contact with the data processing component, and is in direct contact with a first portion and a second portion of the interface surface. The first portion of the interface surface of the pedestal has a first height, relative to the mounting surface of the base, and the second portion of the interface surface of the pedestal has a second height, relative to the mounting surface of the base and different than the first height.

Abstract: The present disclosure relates to a voltage measuring method, a computer device and a storage medium. The method includes: determining, by a voltage measuring device when the voltage measuring device is electrically coupled to a three-phase conductor through a voltage dividing capacitor in the voltage measuring device, a current measured voltage, the measured voltage being determined by measuring a voltage of the voltage dividing capacitor in the voltage measuring device; adjusting the coupling capacitances, and determining, by the voltage measuring device after the adjustment of the coupling capacitances, a current measured voltage; and determining, based on the measured voltage by the voltage measuring device before the adjustment of the coupling capacitances and the measured voltage by the voltage measuring device after the adjustment of the coupling capacitances, a voltage of a phase conductor of the three-phase conductor to be measured.

Abstract: Systems, methods, and apparatuses for providing dynamic, prioritized spectrum utilization management. The system includes at least one monitoring sensor, at least one data analysis engine, at least one application, a semantic engine, a programmable rules and policy editor, a tip and cue server, and/or a control panel. The tip and cue server is operable utilize the environmental awareness from the data processed by the at least one data analysis engine in combination with additional information to create actionable data.

Abstract: Embodiments of this application provide a power conversion circuit. The power conversion circuit includes at least one first power conversion unit connected in series to a first phase line, at least one second power conversion unit connected in series to a second phase line, at least one third power conversion unit connected in series to a third phase line, a plurality of first start circuits connected in series to the first phase line, and a plurality of second start circuits connected in series to the second phase line. Each first start circuit includes a first relay and a first resistor that are connected in parallel, and first relays in all the first start circuits are sequentially closed after the power conversion circuit is powered on, to start the power conversion circuit. Each second start circuit includes a second relay and a second resistor that are connected in parallel.