Abstract: A vernier permanent magnet motor with a stator having coded auxiliary teeth which belongs to the technical field of permanent magnet motors. The motor includes a stator and a rotor that are coaxially sleeved, and an air gap is formed between the stator and the rotor. Coded auxiliary tooth structures are provided on a side surface in the stator close to the air gap, and first permanent magnets are provided on part of the coded auxiliary tooth structures. A plurality of pairs of second permanent magnets and ferromagnets are arranged around a side surface in the rotor close to the air gap. The first permanent magnets and the ferromagnets generate a first magnetic field, the second permanent magnets and the coded auxiliary tooth structures generate a second magnetic field, and the magnetic fields are superimposed to form working magnetic fields.

Abstract: A display panel includes: a liquid crystal cell; an optical layer configured to transmit part of light incident onto the optical layer whose polarization direction is parallel to a transmission axis of the optical layer, and reflect a remaining part of the light incident onto the optical layer; a first polarization structure configured to transmit part of light incident onto the first polarization structure whose polarization direction is parallel to a transmission axis of the first polarization structure, and absorb a remaining part of the light incident onto the first polarization structure; and a second polarization structure configured to transmit part of light incident onto the second polarization structure whose polarization direction is parallel to a transmission axis of the second polarization structure, and absorb a remaining part of the light incident onto the second polarization structure.

Abstract: A projection device and a projection picture correction method thereof are provided. When the projection device performs projection toward a projection surface, a plurality of target coordinates of a plurality of target vertexes are obtained based on a plurality of planes of the projection surface. The plurality of planes are not coplanar with each other, and the plurality of target vertexes form a target polygon. A first direction scaling process is performed respectively on a plurality of first image portions of an original trapezoidal image and a trapezoidal image block is generated. A second direction scaling process is performed respectively on a plurality of second image portions of the trapezoidal image block and a target image block aligned with the target polygon is generated. An output image including the target image block is projected onto the projection surface.

Abstract: A projection device and a projection picture correction method thereof are provided. When the projection device performs projection toward a projection surface, a plurality of target coordinates of a plurality of target vertexes are obtained based on a plurality of planes of the projection surface. The plurality of planes are not coplanar with each other, and the plurality of target vertexes form a target polygon. A first direction scaling process is performed respectively on a plurality of first image portions of an original trapezoidal image and a trapezoidal image block is generated. A second direction scaling process is performed respectively on a plurality of second image portions of the trapezoidal image block and a target image block aligned with the target polygon is generated. An output image including the target image block is projected onto the projection surface.

Abstract: A projection device and a keystone correction method thereof are provided. The keystone correction method is adapted for the projection device and includes the following steps. A first image is obtained. A first line-taking position parameter is determined according to a ratio of a first target edge length to a second target edge length. At least one line of input pixels disposed in a first direction is retrieved from the first image according to the first line-taking position parameter. A first scaling process related to the first direction is performed according to at least one line of input pixels of the first image, such that a line of output pixels of a second image disposed in the first direction is generated. The projection device projects the second image onto a projection screen to display a rectangular projected image.

Abstract: An audio signal processing device and an audio signal adjusting method thereof. The audio signal processing device includes a gain determining circuit and an audio signal processing circuit. The gain determining circuit receives an analog audio signal. The gain determining circuit determines a gain based on a difference between a predefined threshold and an amplitude of the analog audio signal in response to detecting that a current sampling amplitude of the analog audio signal is greater than the predefined threshold. The audio signal processing circuit is coupled to the gain determining circuit and receives the analog audio signal and the gain. The audio signal processing circuit attenuates the analog audio signal according to the gain to generate an output audio signal.

Abstract: An audio signal processing device and an audio signal adjusting method thereof. The audio signal processing device includes a gain determining circuit and an audio signal processing circuit. The gain determining circuit receives an analog audio signal. The gain determining circuit determines a gain based on a difference between a predefined threshold and an amplitude of the analog audio signal in response to detecting that a current sampling amplitude of the analog audio signal is greater than the predefined threshold. The audio signal processing circuit is coupled to the gain determining circuit and receives the analog audio signal and the gain. The audio signal processing circuit attenuates the analog audio signal according to the gain to generate an output audio signal.

Abstract: Embodiments of the present disclosure relate to the field of multimedia processing and disclose a method and device for playing multiple channels of streaming media and. The method includes: receiving at least two channels of streaming media from a streaming server through a network; sorting the at least two channels of streaming media in descending order of playing popularity; and playing streaming media that ranks first on a primary window of a display interface and outputting corresponding audio, and playing and muting each of remaining streaming media on a secondary window of a corresponding display interface.

Abstract: The present disclosure discloses a method for pushing a video file, which is applied to a network server and includes following steps: acquiring a push request from a smart terminal including identification information of the smart terminal and a projection device; binding the smart terminal and the projection device if the identification information of the smart terminal is determined to be matched with that of the projection device; and acquiring push information from the smart terminal and pushing a video file designated by the push information to the projection device.

Abstract: The present disclosure discloses a method and electronic device for controlling video playing. The method includes: receiving a control instruction inputted by a user for a projection device and transmitting the control instruction to a network server; searching a projection device synchronously bound to the intelligent terminal currently and sending the control instruction to the projection device after receiving the control instruction, by the network server, such that the projection device controls video playing according to the control instruction after receiving the control instruction, wherein the intelligent terminal is connected to the network server via network, and the network server is connected to the projection device via network.

Abstract: The present disclosure relates to the communications field, and disclose a screen projection method and electronic device. The method includes: disposing a screen projection interface on multiple terminals, interconnecting the screen projection interface of each terminal by a network, where the network is not a local area network, and a source terminal sending screen projection data to a target terminal by the screen projection interface. The foregoing technical solution, by disposing screen projection interfaces in different networks, may implement a screen projection from a source terminal to a target terminal by a screen projection interface, and resolve the problem of a cross-network segment screen projection.

Abstract: According to illustrative embodiments, the present disclosure relates to methods and electronic devices for controlling three stream video play, which are used for playing video contents of a main play flow in a play window on a mobile terminal screen, and meanwhile, playing a sound of the main play flow video. Exemplary implementations may perform the operation to play/stop the sound of the main play flow, and change a sound playing state of the main play flow. Meanwhile, the video content in the main play flow can be switched by playing a sound of the subsidiary play flow, thereby quickly and effectively switching the program of the main play flow, controlling the sound of the main play flow, and associating switching of the program in the main play flow with the sound control.