Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting a reference signal and a method and an apparatus for receiving a reference signal. The method includes: determining, by a terminal device, sequence information of a first sequence set corresponding to a first reference signal and information about a first resource used for transmitting the first reference signal, where the first sequence set includes at least one sequence, the information about the first resource includes time domain information of the first resource and/or frequency domain information of the first resource, and a first mapping relationship exists between the sequence information of the first sequence set and the information about the first resource; and transmitting, by the terminal device, the first reference signal based on the sequence information of the first sequence set and the information about the first resource.

Abstract: Provided is a back light unit, a display unit and a display apparatus. The back light unit is configured to be disposed on a side of a display panel away from a display side, and includes a back plate and a plastic frame. The back plate includes a bottom plate and a side plate connected to an edge of the bottom plate, and a step is formed on an inner side of the side plate. The step has a first side away from the bottom plate and a second side away from an outer side of the side plate. The plastic frame is supported on the first side surface of the step, and a supporting part is disposed on an end surface of the side plate away from the bottom plate.

Abstract: In this application, a manner of generating a modulated field STF is enriched, so that a manner of generating a PPDU is enriched, thereby improving data transmission flexibility. The method includes: After generating a PPDU, a transmit end sends the PPDU to at least one receive end, where the PPDU includes at least one modulated field STF, the modulated field STF includes a plurality of zero elements and a plurality of non-zero elements, m1 zero elements are included before a first non-zero element, m2 zero elements are included after a last non-zero element, m1+m2 zero elements are included between any two adjacent non-zero elements, m1 and m2 both are positive integers, and the modulated field STF is mapped to a plurality of consecutive subcarriers for transmission. This application is used for data transmission.

Abstract: A lens assembly, including a lens barrel and a lens. The lens barrel is hollow and includes an interior surface, the lens is disposed inside the lens barrel, and the lens includes a side surface in interference fit with the interior surface, where the interior surface has a hollow area, the side surface includes a micro-convex structure, and the hollow area fits the micro-convex structure. A fit quantity between the micro-convex structure and the hollow area is changed through relative rotation of the lens and the lens barrel, to adjust assembly interference between the lens barrel and the lens. Embodiments further provide a camera module and a terminal, to resolve problems of lens deformation and degraded imaging quality caused by large assembly interference of the lens barrel and the lens.

Abstract: The present disclosure provides a compensation apparatus and method of a light-emitting device and display substrate and fabrication method thereof. The apparatus of light-emitting device includes a light sensing circuit and a compensation amount computing circuit. The light sensing circuit is configured to output a first photo-generated current under a condition that the light-emitting device emits light, when the light-emitting device needs to be compensated. The compensation amount computing circuit is connected with the light sensing circuit, and configured to compute a compensation amount required to compensate the light-emitting device according to the first photo-generated current.

Abstract: Implementations of the present specification provide a method and an apparatus for identifying an applet of risky content based on differential privacy preserving. An example method includes: responsive to monitoring an operation performed by a user using an applet, determining whether an operation source is a risky operation source, the operation source including a combination of the user and a device used by the user; responsive to determining that the operation source is a risky operation source, disturbing a program identifier of the applet by using a randomized response technique that satisfies local differential privacy preserving; and sending an operation source identifier of the operation source and the disturbed program identifier to a serving end, so that the serving end identifies whether the applet is an applet of risky content based on multiple received disturbed program identifiers by using the randomized response technique.

Abstract: An electroluminescent device and a light-emitting layer and an application thereof. The light-emitting layer comprises at least one nano-crystalline semiconductor material and at least one exciplex; an emission spectrum of the exciplex is at least partially overlapped with an excitation spectrum of the nano-crystalline semiconductor material; and the attenuation life of an excited state of the exciplex is longer than the attenuation life of an excited state of the nano-crystalline semiconductor material.

Abstract: A signal shielding and transmitting case with a length-adjustable antenna comprises a remote control part, a signal shielding case, and a PCB and an antenna driving part arranged in the signal shielding case, wherein a control line penetrates through the antenna driving part and is fixedly connected to a signal transmitting antenna, and the remote control part can control the length of the signal transmitting antenna stretching out of the signal shielding case based on the gear lever principle to allow users to adjust the intensity of signals transmitted by the signal transmitting antenna freely.

Abstract: A method may include obtaining real-time image data relating to at least one scene acquired by a camera and identifying a plurality of real-time first features relating to a plurality of subjects from the real-time image data. The method may include determining one or more first estimated values corresponding to the plurality of real-time first features, the first estimated values being represented by a first coordinate system. The method may further include obtaining one or more first reference values corresponding to the plurality of real-time first features, the first reference values being represented by a second coordinate system, each of the first estimated values corresponding to one of the first reference values. The method may further include determining one or more real-time target parameters of the camera based on the first estimated values and the first reference values.

Abstract: A driving method is configured to drive a display device, and the display device includes a display array and a light valve array. The display array includes rows of sub-pixels, the light valve array includes a plurality of sub light valves, a respective one sub light valve of the plurality of sub light valves corresponds to at least one row of sub-pixels, and the light valve array is on a light-emitting side of the display array. The driving method includes: any sub-pixel in the at least one row of sub-pixels being in a response phase of a display operation, the respective one sub light valve being in a light-shielding state, and the respective one sub light valve corresponding to the at least one row of sub-pixels.

Abstract: An intelligent photographing method includes extracting, by a terminal, one or more first tags from common data of a user, where the common data represents an identity feature of the user, extracting, by the terminal, one or more second tags from photographing-related data of the user, where the photographing-related data represents a photographing preference of the user, determining, by the terminal, a third tag based on the one or more first tags and the one or more second tags, and obtaining a picture and adjusting, by the terminal, picture quality of the picture based on a picture quality effect parameter set corresponding to the third tag.

Abstract: A monocular visual simultaneous localization and mapping (SLAM) data processing method.

Abstract: Apparatuses and methods for drying objects are provided. The apparatus can comprise a housing configured to provide an airflow channel having an airflow inlet and an airflow outlet, an airflow generating element configured to effect an airflow through the airflow channel, and one or more radiation energy sources configured to generate infrared radiation and direct the infrared radiation toward an exterior of the housing. At least a portion of at least one of the one or more radiation energy sources does not contact the airflow channel or the airflow, thereby maintaining an operating temperature of the radiation energy source within a predetermined range.

Abstract: A hinge and a mobile terminal to resolve poor use effect of a foldable electronic device. The hinge includes a main body, and a first folding assembly and a second folding assembly that are symmetrically disposed along the main body. When the first folding assembly and the second folding assembly are rotated toward each other, a length of the hinge can be extended, and an accommodation space for accommodating the flexible display can be formed. When the first folding assembly and the second folding assembly are rotated away from each other, the length of the hinge can be reduced, and a support surface for supporting the flexible display can be formed, so that the flexible display cannot be stretched, compressed, or the like during folding and unfolding, thereby improving the use effect and safety of the mobile terminal.

Abstract: A device to device (D2D) communication method includes: receiving, by user equipment (UE), resource pool configuration information, where the resource pool configuration information includes frequency domain resource location information and time domain resource location information and the frequency domain resource location information includes a frequency domain resource pool indicator and a frequency domain spacing between two consecutive device to device D2D resources; determining, by the UE, an available frequency domain resource based on the resource pool configuration information; and performing, by the UE, D2D communication on the available frequency domain resource.

Abstract: Disclosed are GPS-based target tracking system, method and dome camera. The system comprises: a first camera and a second camera. The first camera obtains GPS coordinate of a target during the tracking of the target and sends the GPS coordinates to the second camera. The second camera adjusts a shooting angle of the second camera according to the GPS coordinates, and tracks the target after detecting the target in a second monitoring image shot by the second camera. Therefore, in the scheme, if the target moves out of the monitoring range of the first camera, the second camera continues to track the target, namely the tracking range of the target is expanded through linkage of the plurality of cameras.

Abstract: A method for monitoring memory access behavior of a sample process is provided. A processing unit of a computer device determines a page table of the sample process based on a page directory base address of the sample process, where each entry of the page table includes first information, the first information indicates whether the entry has been assigned a guest physical address, the entry that has been assigned the guest physical address includes second information that is used to indicate an access permission of the assigned guest physical address; determines a target entry from the page table, the target entry has been assigned a guest physical address, and an access permission is execution allowed; determines a target host physical address corresponding to the target guest physical address that is assigned to the target entry; and monitors behavior of accessing memory space indicated by the target host physical address.