Abstract: Disclosed is a method of resource encryption and display. The method includes: performing file splitting and local encryption on a pre-downloaded splash screen resource file; calculating a current true time according to a correct time obtained from a server and a device power-on time difference of a client, and determining whether a current device time is reliable according to the true time; and when the current device time is reliable, directly obtaining the splash screen resource file through decryption and splicing, and displaying the splash screen resource file.

Abstract: This application provides techniques of processing bullet screens for a target user group. The techniques comprises receiving an instruction of creating a target user group associated with watching a target video, wherein the instruction comprises information indicative of the target video; creating the target user group in response to receiving the instruction, wherein the target user group comprises a plurality of users, and wherein the target user group corresponds to a user group identifier; generating a user group comment pool corresponding to the target user group, the user group comment pool configured to store information sent from any user in the target user group; determining a target client computing device associated with one of the plurality of users in the target user group; and sending the target video to the target client computing device for playing the target video on the target client computing device.

Abstract: A power supply circuit structure (100), a drying device (200), a power supply kit (1000) and a power supply method. The power supply circuit structure (100) is connected to a power supply (300) and supplies power to a radiation source (21), the power supply (300) provides an alternating current signal which changes periodically, the radiation source (21) can radiate light of a preset frequency band, and the power supply circuit structure (100) comprises a main control circuit (11) and a signal conduction circuit (12). The main control circuit (11) receives and detects the alternating current signal and generates a control signal with the same frequency as the alternating current signal according to the preset frequency band, and the control signal comprises a zero-amplitude part.

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: 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 generate 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. A device controller can control the operation of the airflow generating element and the one or more radiation energy sources, and a power element controller in connection with the device controller can control the operation of the power element that can provide power at least to the radiation energy source and the airflow generating element.

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 generate 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. A device controller can control the operation of the airflow generating element and the one or more radiation energy sources, and a power element controller in connection with the device controller can control the operation of the power element that can provide power at least to the radiation energy source and the airflow generating element.

Abstract: This application provides techniques of processing bullet screens for a target user group. The techniques comprises receiving an instruction of creating a target user group associated with watching a target video, wherein the instruction comprises information indicative of the target video; creating the target user group in response to receiving the instruction, wherein the target user group comprises a plurality of users, and wherein the target user group corresponds to a user group identifier; generating a user group comment pool corresponding to the target user group, the user group comment pool configured to store information sent from any user in the target user group; determining a target client computing device associated with one of the plurality of users in the target user group; and sending the target video to the target client computing device for playing the target video on the target client computing device.

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: Disclosed is a method of resource encryption and display. The method includes: performing file splitting and local encryption on a pre-downloaded splash screen resource file; calculating a current true time according to a correct time obtained from a server and a device power-on time difference of a client, and determining whether a current device time is reliable according to the true time; and when the current device time is reliable, directly obtaining the splash screen resource file through decryption and splicing, and displaying the splash screen resource file.

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: The present disclosure describes techniques for annotating a video. The techniques comprises receiving an operation of creating a bullet screen of annotating a target object in a first frame; determining a display position of the bullet screen in the first frame; displaying the bullet screen at the display position in the first frame; determining an offset of the display position of the bullet screen relative to a position of the target object in the first frame; and displaying the bullet screen at a target display position in a second frame of the video, wherein the target display position in the second frame is determined based at least in part on the offset of the display position of the bullet screen relative to the position of the target object in the first frame, the second frame is played subsequent to the first frame, and the second frame comprises the target object.

Abstract: The present disclosure describes techniques for generating and presenting audio bullet screens. The techniques comprise receiving a first instruction of generating an audio bullet screen associated with a video from a first client computing device associated with a first user; determining an interface based on the first instruction; transmitting data indicative of the interface to the first client computing device; receiving information indicative of a music score from the first client computing device, wherein the music score is determined based on user input by the first user via the interface; generating the audio bullet screen based on the music score; storing the music score corresponding to the audio bullet screen; and transmitting data indicative of the audio bullet screen to a second computing device associated with a second user that is playing the video.

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: 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 generate 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. A device controller can control the operation of the airflow generating element and the one or more radiation energy sources, and a power element controller in connection with the device controller can control the operation of the power element that can provide power at least to the radiation energy source and the airflow generating element.

Abstract: An unmanned aerial vehicle (UAV) includes an audio source collecting microphone detecting a target audio signal, background noise-producing components producing background noise different from the target audio signal, background microphones collecting the background noise, and noise emitters each configured to reduce the background noise by emitting an audio signal having a reverse phase of the collected background noise collected by the corresponding background microphone. The background microphones further collect reduced background noise. The UAV further includes a processor receiving signals which comprise the target audio signal and the reduced background noise, and generating a processed signal based on the collected reduced background noise to reduce interference by the background noise to the target audio signal.

Abstract: A camera includes a housing, a lens assembly accommodated in the housing, a plurality of circuit boards accommodated in the housing and including a first circuit board and at least one second circuit board, and a connection rod including at least one step member at a peripheral of the connection rod. One end of the connection rod is configured to fix the lens assembly in the housing. Another end of the connection rod is configured to connect with the first circuit board. One of the at least one second circuit board abuts against a corresponding one of the at least one step member and is fixed to the connection rod. The plurality of circuit boards are spaced apart from the lens assembly and from each other.

Abstract: A camera includes a housing, a lens assembly accommodated in the housing, a connection rod, and a circuit board. One end of the connection of the connection rod fixes the lens assembly in the housing. The circuit board is accommodated in the housing and supported by another end of the connection rod. The circuit board is spaced apart from the lens assembly.

Abstract: An unmanned aerial vehicle (UAV) with audio filtering components includes a background noise-producing component, a background microphone, and a noise emitter. The background noise-producing component is configured to produce a background noise. The background microphone is positioned within a proximity sufficiently close to collect interfering noise from the background noise producing component. The background microphone is configured to collect audio data including the background noise. The noise emitter is disposed within a proximity sufficiently close to the background noise-producing component to reduce the interfering noise. The noise emitter is configured to emit an audio signal having a reverse phase of the audio data collected by the background microphone.

Abstract: A camera includes a housing, a lens assembly accommodated in the housing, a connection rod, and a circuit board. One end of the connection of the connection rod fixes the lens assembly in the housing. The circuit board is accommodated in the housing and supported by another end of the connection rod. The circuit board is spaced apart from the lens assembly.

Abstract: An unmanned aerial vehicle (UAV) with audio filtering components includes a background noise-producing component, a background microphone, and a noise emitter. The background noise-producing component is configured to produce a background noise. The background microphone is positioned within a proximity sufficiently close to collect interfering noise from the background noise producing component. The background microphone is configured to collect audio data including the background noise. The noise emitter is disposed within a proximity sufficiently close to the background noise-producing component to reduce the interfering noise. The noise emitter is configured to emit an audio signal having a reverse phase of the audio data collected by the background microphone.