Abstract: An electronic device display may have an active area with pixels. An optical sensor may be formed under a sensor region in the active area. During operation, ambient light and/or other light associated with the optical sensor may pass through the sensor region. To ensure that the light for the optical sensor can pass through the display, the display may have one or more layers with sensor openings such as a metal layer and a pressure sensitive adhesive layer that attaches the metal layer to the pixels of the display. To help minimize visibility of the openings in the sensor region, the pressure sensitive adhesive layer may be configured to have a reflectivity that matches the appearance of the display in the sensor region to surrounding areas. Undesired light output uniformity can be reduced by ensuring that the substrate material in the display has a low light absorption coefficient.

Abstract: A wireless charger includes an upper housing assembly, a lower housing assembly, a magnetic sheet coil, and a heat dissipation ring. A concave structure is provided on an upper surface of the lower housing assembly, and the concave structure is coupled to the upper housing assembly to form a cavity structure. The cavity structure accommodates the magnetic sheet coil and the heat dissipation ring. The heat dissipation ring is embedded in the magnetic sheet coil and is in contact with the magnetic sheet coil. An upper surface of the heat dissipation ring is coupled to the upper housing assembly. A lower surface of the heat dissipation ring is coupled to a bottom of the concave structure of the lower housing assembly. The heat dissipation ring may transfer heat in the upper housing assembly to the bottom of the lower housing assembly.

Abstract: The disclosure includes a host operating in a communication system to provide an over-the-top (OTT) service. The host includes processing circuitry configured to initiate transmission of user data to a network node in a cellular network to a user equipment (UE). The network node is configured to receive a CSI report for a downlink channel from a wireless device and transmit the user data from the host to the UE to provide the OTT service based on the CSI report. The CSI report includes a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients, wherein the indication of how the network node is to interpret the set of reported coefficients indicates the set of reported coefficients as a subset of a set of candidate reported coefficients; and an indication of a payload size of the set of the reported coefficients.

Abstract: A power semiconductor device includes a P-type substrate, an N-type well region, a P-type body region, a gate oxide layer, a polysilicon gate, a first oxide layer, a first N+ contact region, a first P+ contact region, drain metal, a first-type doped region, and a gate oxide layer. An end of the P-type body region is flush with or exceeds an end of the polysilicon gate, wherein Cgd of the power semiconductor device is reduced and a switching frequency of the power semiconductor device is increased. A polysilicon field plate connected with a source is introduced over a drift region that is not only shield an influence of the polysilicon gate on the drift region, thereby eliminating Cgd caused by overlapping of traditional polysilicon gate and drift region, but also enable the power semiconductor device to have strong robustness against an hot carrier effect.

Abstract: A method performed by a wireless device (510, 800, 1200) for reporting channel state information (CSI) for a downlink channel is disclosed. The method comprises transmitting (601, 705) a CSI report for the downlink channel to a network node (560, 1100), the CSI report comprising: a set of reported coefficients; an indication of how the network node is to interpret the set of reported coefficients; and an indication of a payload size of the set of the reported coefficients.

Abstract: Embodiments of the present disclosure relates to the field of solar cells, and in particular to a solar cell and a production method thereof, and a photovoltaic module. The solar cell includes: a P-type emitter formed on a first surface of an N-type substrate and including a first portion and a second portion, a top surface of the first portion includes first pyramid structures, and a top surface of the second portion includes second pyramid structures whose edges are straight. A transition surface is respectively formed on at least one edge of each first pyramid structure, and each of top surfaces of at least a part of the first pyramid structures includes a spherical or spherical-like substructure. A tunnel layer and a doped conductive layer sequentially formed over a second surface of the N-type substrate. The present disclosure can improve the photoelectric conversion performance of solar cells.

Abstract: A photovoltaic cell is provided, including a substrate having a front surface with metal and non-metal pattern regions, first and second pyramid structures in each metal pattern region, third and fourth pyramid structures in each non-metal pattern region, a first tunneling layer and a first doped conductive layer on a portion of the front surface in a respective metal pattern region, and a second tunneling layer and a second doped conductive layer on a rear surface of the substrate. A dimension of a bottom portion of each first pyramid structure is greater than that of each second pyramid structure. A dimension of a bottom portion of each third pyramid structure is greater than that of each fourth pyramid structure. An area proportion of the first pyramid structures in the metal pattern region is greater than that of the third pyramid structures in a respective non-metal pattern region.

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: Embodiments of the present disclosure relates to the field of solar cells, and in particular to a solar cell and a production method thereof, and a photovoltaic module. The solar cell includes: a N-type substrate; a P-type emitter formed on a first surface of the N-type substrate and including a first portion and a second portion, a top surface of the first portion includes a first pyramid structure, and at least a part of at least one inclined surface of the first pyramid structure is concave or convex relative to a center of the first pyramid structure, a top surface of the second portion includes a second pyramid structure, and inclined surfaces of the second pyramid structure are planar; and a tunnel layer and a doped conductive layer located on a second surface of the N-type substrate. The present disclosure can improve the photoelectric conversion performance of solar cells.

Abstract: A configuration helper system (CHS) is described that simplifies the task of generating configuration information for a customer premises equipment (CPE) in a customer's on-premise network to enable the CPE to communicate with the customer's cloud network over a particular communication channel. The CHS is configured to generate configuration information that is customized for the particular CPE and communication channel. Given information about the CPE and the communication channel, the CHS automatically identifies a particular set of configuration parameters to be included in the customized configuration information and determines values for the set of parameters, where some of the values may be provided by the customer. A particular CPE-specific format is determined for the configuration information.

Abstract: A method performed by a network node for handling channel feature estimates associated with a radio channel between a User Equipment, UE, and the network node in a wireless communications network is provided. The network node obtains a channel feature estimates associated to the radio channel estimated at a first point in time. Data representing the channel feature estimates has a first size. The network node compresses the channel feature estimates at the first point in time by replacing them with updated channel feature estimates that at the subsequent point in time fulfils a respective threshold condition. The data representing the updated channel feature estimates has a second size. The second size is smaller than the first size. The network node then adjusts parameters for a transmission at the radio channel based on the updated channel feature estimates.

Abstract: A method and a receiving node for determining a channel window length (l{circumflex over (?)}) for a transformed domain channel estimator, the channel window length (l{circumflex over (?)}) to be applied for a particular reference signal (RS) carrying symbol. At least two subsets (A1, A2, . . . ) of received RS carrying symbols are obtained out of a set of RS carrying symbols ({S1, S2, . . . }), where the particular RS carrying symbol is included in at least one of the at least two subsets (A1, A2, . . . ). A corresponding hypothesis channel window length (l*) is determined for the at least one of the subsets (A1, A2, . . . ) based on a set of channel responses. The channel window length (l{circumflex over (?)}) for the particular RS carrying symbol is then determined based on the corresponding hypothesis channel window length (l*).

Abstract: A mini LED backlight module, a driving circuit and a display device are provided. Emitting units of the same row in the mini LED backlight module are divided into multiple sections that could be illuminated differently. This could avoid the issue of a high backlight current pulse when each row of light emitting units in different backlight sections is simultaneously illuminated and thus alleviate the issue of reducing the lifetime of light emitting units.

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: A solar cell, including a crystalline silicon substrate; a first passivation contact step provided on a surface of the crystalline silicon substrate; a second passivation contact step provided on a surface of the first passivation contact step away from the crystalline silicon substrate and located corresponding to an electrode; a first passivation antireflection step provided on the surface of the first passivation contact step away from the crystalline silicon substrate and not in contact with the second passivation contact step; a second passivation antireflection step provided on a surface of the second passivation contact step away from the first passivation contact step; and the electrode including a side in contact with the first passivation contact step and another side penetrating through the second passivation contact step and the second passivation antireflection step.

Abstract: A system for storing and retrieving data for a multi-stage two-dimensional transform is disclosed. The system comprises a memory comprising storage elements arranged in a physical grid with physical rows and physical columns, wherein values stored in a same physical column are not simultaneously accessible. A processing unit is configured to receive data elements of a certain logical row of a dataset arranged in logical rows and logical columns for storage in a certain physical row of the physical grid of the memory. The processing unit is configured to circularly shift the data elements based on a shift offset associated with the certain physical row. The processing unit is configured to provide for storage in the certain physical row of the physical grid of the memory the circularly shifted data elements to enable a logical column of the dataset to be read together from different physical columns.

Abstract: A photovoltaic cell is provided, including a substrate having a front surface with metal pattern regions and a rear surface, first pyramid structures in each metal pattern region, platform protrusion structures on the rear surface, a first tunneling layer and a first doped conductive layer on a portion of the front surface in a respective metal pattern region, and a second tunneling layer and a second doped conductive layer on the rear surface. A height of each first pyramid structure is greater than that of each platform protrusion structure. A one-dimensional dimension of a bottom portion of each first pyramid structure is less than that of each platform protrusion structure. A doping element type of the first doped conductive layer is the same as that of the substrate. A doping element type of the second doped conductive layer is different from that of the first doped conductive layer.

Abstract: A method performed by a radio unit for handling a number of received radio signals over an array of antennas comprised in the radio unit. The radio unit transforms the number of received radio signals into a number of sequences of complex symbols. The radio unit further filters the number of sequences of complex symbols by inputting the number of sequences of complex symbols into a trained computational model comprising an alternating sequence of linear and nonlinear functions and thereby obtaining a reduced number of sequences. The radio unit further transmits the reduced number of sequences to a baseband unit over a front-haul link.

Abstract: The present invention relates to an aspherical multifocal intraocular lens with large depth of field, the intraocular lens having an anterior optical surface and a posterior optical surface, wherein one optical surface is distributed with an aspherical surface which plays a role of expanding the depth of field, and the other optical surface is distributed with a multifocal structure which plays a role of providing two or more focal points. The aspherical surface provides a depth of field matching with an absolute value of a difference in refractive power of at least one pair of adjacent focal points of the two or more focal points provided by the multifocal structure. The aspherical surface, on the one hand, allows a continuous visual range between the focal points and, on the other hand, extends near vision in the direction of near focal point through the depth of field, thereby enabling continuous, uninterrupted full-range vision and adequate near vision.

Abstract: A video processing method is provided. The method includes inserting a set of spatial merge candidates to a first merge candidate list of a coding block, wherein the first merge candidate list is constructed by: adding a top neighboring block B1 to the first merge candidate list when the top neighboring block B1 is available; adding a left neighboring block A1 to the first merge candidate list when the left neighboring block A1 is available; adding a top neighboring block B0 to the first merge candidate list when the top neighboring block B0 is available; adding a left neighboring block A0 to the first merge candidate list when the left neighboring block A0 is available; and adding an above-left neighboring block B2 to the first merge candidate list when the above-left neighboring block B2 is available.