Abstract: Embodiments of the disclosure provide a circuit, chip, system, and method for eliminating random perturbation. The circuit includes a weight calculating module for receiving digital signals and random perturbation digital quantity, using least mean square error algorithm to calculate weight deviation iteration coefficient based on digital signal and digital quantity, and updating perturbation weight in real-time according to weight deviation iteration coefficient; and a perturbation eliminating module for eliminating perturbation signal in output digital signal of quantizer according to perturbation weight updated in real-time and updating perturbation weight in real-time according to weight deviation iteration coefficient, and then calculating current perturbation weight in real time to realize self-calibration of perturbation weight.

Abstract: Methods and systems for managing memory usage in data learning operations. The method includes profiling one or more objects used for training in the data learning operation, in which the profiling includes determining an object size, a memory allocation timestamp, and a memory deallocation timestamp; and scheduling the memory usage. The scheduling includes grouping the one or more objects into the one or more groups based on the memory allocation and/or the memory deallocation timestamp of the one or more objects, and arranging the one or more objects in the one or more groups in descending order in a memory space. Two or more objects are provided in the descending order in the memory space, in which one of the objects having an earliest memory allocation timestamp is provided at a first value and the other object having a later memory allocation timestamp is provided at a second value.

Abstract: An interface circuit and an electronic apparatus, including: a programmable current array (1), generating a first current and a second current transmitted to a common mode and differential mode generation circuit (2) according to an input code, and a third current and a fourth current transmitted to a driving bias generation circuit (3) according to the input code; the common mode and differential mode generation circuit (2), generating a common mode voltage according to the first current, and generating a high level voltage and a low level voltage according to the second current and the common mode voltage; a driving bias generation circuit (3), simulating a load according to the third and fourth currents, and generating a bias voltage based on the load and the low and high level voltages; an output driving circuit (4), converting an input signal into a differential signal in which the common mode voltage and a differential mode amplitude are configurable.

Abstract: Various methods and systems are disclosed to improve detection probability of time of flight lidar systems by generating real-time background signals for individual pixels of a sensor of the lidar detection system and use the background signals to dynamically control the detection system of the lidar. The background signals, that indicate the amount of background light received by different pixels, are used for controlling the detection system by adjusting at least one of the optical system, the sensor, and the readout system of the detection system in order to reduce the impact of the back ground light on the detection and range finding functionality of the lidar.

Abstract: Various methods and systems are disclosed to improve the reliability and accuracy of a time of flight lidar systems by generating real-time background signals for individual pixels of a sensor of the lidar detection system and use the background signals to generate confidence signals. The confidence signal indicates validity of a return signal or a probability that the return signal is not associated with interference with another lidar or light source. The confidence signals may be used by the lidar system to reduce the false alarm rate of the lidar.

Abstract: An authentication system and authentication method for an electronic cigarette and an electronic cigarette configured to be connected within such system so that the authentication method can be applied to the electronic cigarette. The system can be divided into 3 main components, namely the electronic cigarette itself, a mobile terminal in communication with the electronic cigarette and reading a security label from the electronic cigarette, and a service terminal connected to the mobile terminal, for instance through the cloud. The system and method protects particularly from counterfeit cartridges and secures that a cartridge of the intended content is connected in the electronic cigarette. In addition, age verification can be performed.

Abstract: An electronic cigarette and its host device and cartridge detachably attached to the host device, and a method of operating the same. When the cartridge is detachably attached to the host device a communication magnet provides a connecting force between the host device and the cartridge and at the same time establishes and electrically conducting connection between the host device and the cartridge allowing the transmission of data through the communication magnet to authenticate the cartridge and read operating parameter from the cartridge for optimized controlling.

Abstract: An action feedback method and device are provided. The method includes: judging whether an action is safe; and obtaining motion parameter data corresponding to the action in response to a judgment that the action is safe, and conducting parameter feedback according to the motion parameter data.

Abstract: A power adapter and an electronic device assembly including the power adapter are provided. The power adapter includes an adapter body, prongs, and a cover. The adapter body has a first end surface. The prongs are exposed at the first end surface of the adapter body. The cover is movably connected with the adapter body, and the cover has a second end surface. When the cover is in a closed state, the prongs are covered, and the second end surface is away from the adapter body. When the cover is in an open state, the first end surface and the second end surface cooperatively form a plugging surface of the power adapter.

Abstract: A connector system facilitates the connection of a first tree trunk to a second tree trunk of an artificial tree system. The connector system can prohibit rotation of the first tree trunk relative to the second tree trunk.

Abstract: The present invention discloses a preparation process of food-grade potassium dihydrogen phosphate, wherein phosphoric acid prepared from wet-process phosphoric acid is used for the preparation of high-purity potassium dihydrogen phosphate. The preparation process of food-grade potassium dihydrogen phosphate provided in the present invention effectively reduces the preparation cost of the high-purity potassium dihydrogen phosphate and has the advantage of high process controllability, and by such a process, high-purity potassium dihydrogen phosphate crystals that meet the food-grade requirements can be produced, which crystals have uniform particle size distribution and comprises few fine powder, having a very high market value.

Abstract: A paper dispenser includes a base, paper dispensing portion and cover. The paper dispensing portion has two support members and a paper dispensing unit. The paper dispensing unit has an auxiliary roller, paper dispensing roller, swing unit and paper dispensing cutter disposed at the swing unit. The paper dispensing cutter swings between the inside and outside of a receiving groove of the paper dispensing roller. The support members each have a roll resilient positioning unit, arcuate pivotal connection unit and cam guide groove surrounding the pivotal connection unit and being closed. Two sides of the paper dispensing roller are pivotally disposed at one end of the pivotal connection unit. The guide unit is movably disposed at the cam guide groove. The cover is pivotally disposed at the base and has a paper discharge hole. The paper dispensing portion is disposed between the cover and base.

Abstract: A connector system facilitates the connection of a first tree trunk to a second tree trunk of an artificial tree system. The connector system can prohibit rotation of the first tree trunk relative to the second tree trunk.

Abstract: An authentication system and authentication method for an electronic cigarette and an electronic cigarette configured to be connected within such system so that the authentication method can be applied to the electronic cigarette. The system can be divided into 3 main components, namely the electronic cigarette itself, a mobile terminal in communication with the electronic cigarette and reading a security label from the electronic cigarette, and a service terminal connected to the mobile terminal, for instance through the cloud. The system and method protects particularly from counterfeit cartridges and secures that a cartridge of the intended content is connected in the electronic cigarette. In addition, age verification can be performed.

Abstract: A machine learning-based system and method for content clustering and content threat assessment includes generating embedding values for each piece of content of corpora of content data; implementing unsupervised machine learning models that: receive model input comprising the embeddings values of each piece of content of the corpora of content data; and predict distinct clusters of content data based on the embeddings values of the corpora of content data; assessing the distinct clusters of content data; associating metadata with each piece of content defining a member in each of the distinct clusters of content data based on the assessment, wherein the associating the metadata includes attributing to each piece of content within the clusters of content data a classification label of one of digital abuse/digital fraud and not digital abuse/digital fraud; and identifying members or content clusters having digital fraud/digital abuse based on querying the distinct clusters of content data.

Abstract: The present disclosure provides a container locking device and a piggyback transport vehicle.

Abstract: An electronic cigarette and its host device and cartridge detachably attached to the host device, and a method of operating the same. When the cartridge is detachably attached to the host device a communication magnet provides a connecting force between the host device and the cartridge and at the same time establishes and electrically conducting connection between the host device and the cartridge allowing the transmission of data through the communication magnet to authenticate the cartridge and read operating parameter from the cartridge for optimized controlling.

Abstract: A wire controller of a dropper seatpost includes a pneumatic elevation rod, an outer tube, a wire controller assembly and a C-ring. The pneumatic elevation rod includes an inner tube, an actuation rod and a collar. The outer tube has a first end with a collar fixer and a second end with an annular recess. The collar is fastened to the collar fixer. The wire controller assembly includes a blocking body with a blocking mount and a wiring base with a wire pulling lever. The blocking body is received in the second end. The actuation rod is blocked by the blocking mount. The C-ring is compressively received in the annular recess and abuts against the blocking body to make the wire controller assembly rotatably fixed and received in the second end of the outer tube.

Abstract: A toe clip includes a seat body, a toe clip and an adapter. The seat body has a top side, a bottom side and adapter fixing holes. The top side has a toe clip connecting portion and toe clip fixing holes. The bottom side has an adapter connecting portion. The toe clip includes a clip body and a washer. The clip body includes a mount plate and a clip. The mount plate has long holes. The washer has through holes. The through holes, the long holes and the toe clip fixing holes are separately passed by screws to fasten the toe clip onto the seat body. The adapter is used for connecting the seat body to the pedal and is formed with passing holes. The passing holes and the adapter fixing holes are separately passed by screws to fasten the adapter to the seat body.

Abstract: A machine learning-based system and method for content clustering and content threat assessment includes generating embedding values for each piece of content of corpora of content data; implementing unsupervised machine learning models that: receive model input comprising the embeddings values of each piece of content of the corpora of content data; and predict distinct clusters of content data based on the embeddings values of the corpora of content data; assessing the distinct clusters of content data; associating metadata with each piece of content defining a member in each of the distinct clusters of content data based on the assessment, wherein the associating the metadata includes attributing to each piece of content within the clusters of content data a classification label of one of digital abuse/digital fraud and not digital abuse/digital fraud; and identifying members or content clusters having digital fraud/digital abuse based on querying the distinct clusters of content data.