Abstract: The present application relates to the field of battery technology, and discloses a cylindrical battery structure including a cover plate and a housing. The cover plate includes a cover plate main portion and a cover plate connecting portion fixedly connected to each other. One of an edge of the cover plate connecting portion and an edge of the housing is bent to form a bent portion, and another of the edge of the housing and the edge of the cover plate connecting portion is bent to form a hook portion. The hook portion is configured to hang on the bent portion to connect the cover plate and the housing. The cylindrical battery structure disclosed in the application has simpler connection mode, lower connection cost, and faster connection. In addition, the connection mode has lower requirements on assembly accuracy of workpieces in the housing.

Abstract: A viewing angle prediction method, including determining a current predicted viewing angle corresponding to a current to-be-downloaded clip in a panoramic video based on a head movement trajectory of a user viewing the panoramic video (S110); acquiring a target candidate viewing angle set corresponding to said current to-be-downloaded clip in response to detecting that a current head turning action in the head movement trajectory is an invalid action (S120); and performing correction processing on the current predicted viewing angle, and determining a target predicted viewing angle corresponding to said current to-be-downloaded clip, based on the target candidate viewing angle set (S130).

Abstract: The disclosed technology relates to a portable electronic device. The portable electronic device may comprise a battery, a battery controller, and a system controller. The battery controller may be configured to determine real time battery state information associated with the battery, the real time battery state information including a system load current draw, a battery age indicator, and a battery temperature. The system controller may be configured to determine a user initiated current low voltage mode state of the portable electronic device of a plurality of low voltage mode states, receive current battery state information from the battery controller, and adaptively generate a real time shutoff voltage threshold based on the current determined low voltage mode state and the current battery state information.

Abstract: The present application provides a battery pin and a battery. The battery pin includes a top cover connecting portion and a connecting portion. The tab connecting portion includes a main body plate, a connecting plate, and a bending plate. The bending plate is configured to connect with a tab. The top cover connecting portion is bent and connected to an end of the main body plate, the bending plate is bent and connected to a side of the connecting plate, and the main body plate is bendably connected to the other side of the connecting plate.

Abstract: An anti-interference flexible circuit board for an audio apparatus with a camera comprises an integrated ribbon multilayer structure. An outer conductive layer includes a differential signal line group for digital video transmission and a main clock line, covered by an electromagnetic shielding film to form a shielding cavity. The flexible circuit board further integrates an analog audio drive line group and an independent microphone ground line physically isolated from a main ground line network, connecting only at a terminal portion or a pad position. A package body provides outer-layer protection. Through this layered wiring and shielding isolation, common-ground interference in hybrid transmission of high-speed digital and analog signals within narrow spaces is effectively reduced.

Abstract: A battery cap and a battery. The battery cap includes a cap body, a conductive assembly, and a seal. The cap body is provided with a mounting hole. The conductive assembly includes an electrode pole disposed through the mounting hole. The electrode pole is provided with an electrolyte injection hole penetrating through. The seal plugs the electrolyte injection hole, and a length of the seal in a first direction is less than a length of the electrode pole in the first direction, the first direction being parallel to an axial direction of the electrolyte injection hole.

Abstract: Provided is a signal processing method including: determining, according to a time domain signal to be processed and a time-frequency transform type of the time domain signal, a transform kernel matrix of the time domain signal; mapping the transform kernel matrix to a plurality of processing cores of the many-core chip; and mapping the time domain signal to the plurality of processing cores so that the plurality of processing cores determine, according to the transform kernel matrix and the time domain signal, a frequency domain signal corresponding to the time domain signal.

Abstract: A pole, a cover assembly, and a cell are provided, which relates to the field of cell technologies. The pole includes a body having a first surface, and the first surface defines a tab welding groove; The tab welding groove includes at least one groove sidewall, the groove sidewall is configured to be in contact with the tab of the cell, and a plane where the groove sidewall is located is gradually inclined toward an axis of the pole in a direction away from the first surface.

Abstract: The present disclosure proposes a display panel and a display device. The display panel including: a substrate, including a display region and a peripheral region, where the peripheral region includes a bonding region spaced apart from the display region, and a transition region between the bonding region and the display region; a source-drain metal layer, including a bonding portion at least partially located in the bonding region and a connection portion located in the transition region; a planarization layer, provided on the substrate and provided with a first opening in the bonding region and a first via hole in the transition region, a first metal structure, located in the peripheral region and at least partially provided on a side of the first organic insulating layer facing away from the substrate.