Abstract: A rotary joint, including: a hydraulic follow-up mechanism and a rotary transmission mechanism. The hydraulic follow-up mechanism includes a cylinder body, a valve sleeve, a valve core, a valve body, a left end cover and a right end cover. The rotary transmission mechanism includes a tray, a stabilizing ring, a follow-up disk, a torque transfer disk and a stable supporting wheel mechanism. The left end cover and the right end cover are arranged at the left and right ends of the cylinder body, respectively. The valve body is concentrically mounted in a cylindrical hollow chamber of the cylinder body. The output shaft at the right end of the valve body projects out of the right end cover. The right end of the valve core is provided with a valve core torque transfer shaft extending rightwards through the right end of the valve body.

Abstract: The present disclosure provides a method, system, and apparatus for processing parking and a vehicle controller, and relates to the field of intelligent transportation technology, specifically to the field of automated parking technology. The method is executed by a parking system deployed on a vehicle controller, the parking system including a perception module and other modules except the perception module; the perception module being deployed on a first operating system in the vehicle controller; and the other modules being deployed on a second operating system in the vehicle controller; the method includes: processing an image collected by an image collector through the perception module to obtain perception result data; and controlling a vehicle based on the perception result data obtained from the perception module by the other modules.

Abstract: A method, network node and wireless device in a wireless communication system for one of transmitting and receiving a phase-tracking reference signal, PT-RS. The method includes obtaining information about a position in a time domain of a scheduled first demodulation reference signal, DM-RS, in a slot, and one of transmitting and receiving the PT-RS within the slot, the position of the PT-RS depending on the position in the time domain of the scheduled first DM-RS.

Abstract: An optical imaging lens from an object side to an image side includes a first lens element to a sixth lens element. The first lens element has negative refracting power, a periphery region of the object-side surface of the first lens element is convex, the second lens element has positive refracting power, an optical-axis region of the image-side surface of the second lens element is convex, an optical-axis region of the object-side surface of the third lens element is convex, an optical-axis region of the image-side surface of the third lens element is convex. Only the above-mentioned six lens elements have refracting power. AAGF is a distance from the object-side surface of the first lens element to the object-side surface of the second lens element along the optical axis and T6 is a thickness of the sixth lens element along the optical axis to satisfy AAGF/T6?2.000.

Abstract: The present disclosure relates to an orthokeratology lens which may comprise an inner surface facing a cornea of a human eye when the orthokeratology lens is worn and an outer surface opposite the inner surface the inner surface comprising a centrally located base are zone, wherein the base arc zone is configure for pressing and shaping an anterior surface of the cornea to have a shape that conforms to the base are zone, wherein the base arc zone comprises two or more regions at least two of the two or more regions having different radii of curvature. The present disclosure also relates to a method for making orthokeratology he lenses.

Abstract: The present disclosure provides methods for motion compensation. The method can include: determining intermediate interpolation coefficients of an interpolation filter based on a position of an integer sample and a fractional position of a fractional sample; determining integer interpolation coefficients of the interpolation filter, comprising rounding each of the intermediate interpolation coefficients to an integer; and applying the interpolation filter on a picture to perform motion compensation prediction.

Abstract: There is disclosed a method of operating a radio node in a radio access network. The method includes transmitting and/or receiving reference signaling in a mini-slot, the timing of the reference signaling being determined based on a structure configuration of a transmission timing structure relative to which the mini-slot is positioned. The disclosure also pertains to related devices and methods.

Abstract: An optical imaging lens may include a first, an aperture stop, a second, a third, a fourth, and a fifth lens elements positioned in an order from an object side to an image side along an optical axis. Through designing concave and/or convex surface of the lens elements, the optical imaging lens may have improved imaging quality, enlarged half field of view and reduced surface area in front of the optical imaging lens while the optical imaging lens may satisfy AAG/T5?1.400 and HFOV?50.000°, wherein a sum of the four air gaps from the first lens element to the fifth lens element along the optical axis is represented by AAG, a thickness of the fifth lens element along the optical axis is represented by T5, and a half field of view of the optical imaging lens is represented by HFOV.

Abstract: An optical imaging lens is provided, sequentially including a first lens element, an aperture, a second lens element, a third lens element, a fourth lens element, and a fifth lens element from an object side to an image side along an optical axis. The optical imaging lens satisfies conditional expressions V2+V3+V4+V5?170.000 and (T2+T4)/(T1+G12)?2.900. Furthermore, other optical imaging lenses are also provided.

Abstract: The disclosure relates to a method and apparatus for acquiring spatial division information. The method includes controlling a sound source device to play a first sound signal; obtaining a second sound signal that is a sound signal collected by a sound collecting device when the first sound signal is propagated to the sound collecting device; obtaining direct intensity information based on the second sound signal, wherein the direct intensity information indicates an intensity of a direct sound signal in the second sound signal, wherein the direct sound signal is a sound signal that is generated by the sound source device and reaches the sound collecting device without physical reflection; and obtaining spatial division information based on the direct intensity information, wherein the spatial division information indicates whether the sound source device and the sound collecting device are in a same spatial zone.

Abstract: A measuring device includes a housing and a power source, a conductive detecting unit arranged in the housing and connected with the power source, a carrier facing the conductive detecting unit, connection terminals arranged on the carrier and connected with the power source, and a lifting mechanism configured to control the conductive detecting unit and the carrier to move relatively in the first direction. wherein the The carrying surface of the carrier is parallel to the main surface of the conductive detecting unit, and the first direction is a direction perpendicular to the carrying surface.

Abstract: The present disclosure pertains to an apparatus and methods of an imaging device for obtaining images from the walls of luminal organs or a surgical cavity. The device is capable of passage through luminal organs or introduction into surgical cavities, and obtains images by rapidly scanning a focused light beam on the tissue to be imaged and receiving light from the tissue. The device comprises at least one mechanism for projecting a 2-dimensional (2-D) optical pattern, such as a 2-D scanner (508) or a 2-D optical array forming a closed loop scan pattern (506). The device comprises at least one other beam scanning mechanism, such as a rotary or angular scanner (510) such that cycloid scan pattern is formed on the surface to be scanned, and also has embodiments of focusing optics at different regimes of numerical aperture. The disclosure also describes methods for accurate image reconstruction with embodiments of hardware control and post-acquisition processing.

Abstract: The present disclosure provides systems and methods for constructing a merge candidate list used for video processing. One exemplary method includes: inserting a set of spatial merge candidates to a merge candidate list of a coding block, wherein the set of spatial merge candidates are inserted according to an order of: top neighboring block, left neighboring block, top neighboring block, left neighboring block and above-left neighboring block. The method can further include adding to the merge candidate list at least one of: a temporal merge candidate from collocated coding units, a history-based motion vector predictor (HMVP) from a First-In, First-Out (FIFO) table, a pairwise average candidate, or a zero motion vector.

Abstract: The present disclosure provides methods and systems for motion compensation. The method can include: determining a plurality of intermediate interpolation coefficients of an interpolation filter, the determining of the plurality of intermediate interpolation coefficients being: based on positions of a plurality of integer samples respectively, and based on fractional reference positions of a plurality of fractional samples respectively; determining a plurality of integer interpolation coefficients of the interpolation filter by rounding the plurality of intermediate interpolation coefficients to a plurality of integers respectively; and applying the plurality of integer interpolation coefficients on a picture to perform motion compensation prediction.

Abstract: The disclosure discloses a display panel and a display device, comprising: an OLED substrate; an optical fingerprint sensor; a first quarter-wave plate; a first linear polarizer provided on one side, away from the OLED substrate, of the first quarter-wave plate; a second quarter-wave plate provided on one side, facing to the optical fingerprint sensor, of the OLED substrate; a second linear polarizer provided on one side, facing away from the OLED substrate, of the second quarter-wave plate and positioned between the second quarter-wave plate and the optical fingerprint sensor.

Abstract: The present disclosure provides method and systems for signaling information regarding chroma quantization parameter (QP) offsets. According to some disclosed embodiments, the methods include: determining whether a joint CbCr residual coding is enabled; and in response to the joint CbCr residual coding being determined to be enabled, signaling a syntax element for adjusting chroma quantization parameter (QP) for joint CbCr component at coding unit (CU) level.

Abstract: A method in a wireless receiver for estimating a channel. The method includes receiving a signal comprising a plurality of transmission layers, each layer having at least one reference signal according to a predefined reference signal sequence; determining a window size for performing a sampling operation, wherein the operation is performed in a transformed domain of the received signal; selecting a channel tap length, from a range of channel tap lengths, wherein the selection is based on the window size, a noise mean and a noise variance. The channel estimation is performed from a reference signal sequence for the at least one reference signal and based on samples corresponding to the selected channel tap length.

Abstract: The present disclosure provides method and systems for signaling chroma quantization parameter (QP) table. According to some disclosed embodiments, the methods include: receiving a bitstream of video data; determining whether a luma-to-chroma QP mapping table is signaled, based on a first flag in the bitstream; and in response to the first flag being a first value, determining the signaled luma-to-chroma (P mapping table based on the bitstream.

Abstract: A method and an apparatus for processing voice are provided. The method is applied to a decision-making device in communication with a distributed microphone array and the distributed microphone array comprises a plurality of sub-arrays. The method comprises: obtaining, for each sub-array, an awakening voice signal received by each microphone of the sub-array; determining, for each sub-array, a frequency domain signal corresponding to each awakening voice signal of the sub-array, and a first cross-correlation function between every two frequency domain signals; determining an awakened sub-array based on each first cross-correlation function for each sub-array.

Abstract: A decoding method includes: parsing a data stream, and if partitioning an image block with a size of 2N×2N using a quadtree partition pattern is allowed, processing a 2N×N first subimage block and a 2N×N second subimage block or an N×2N first subimage block and an N×2N second subimage block in a constraint subimage processing mode, wherein an image block partition pattern obtained for the partitioned second subimage block and the partitioned first subimage block is different from an image block partition pattern obtained after the 2N×2N image block is partitioned using the quadtree partition pattern, where the 2N×N first subimage block and the 2N×N second subimage block or the N×2N first subimage block and the N×2N second subimage block are obtained by partitioning the image block with the size of 2N×2N.