Abstract: An antenna unit includes a first metal portion, a second metal portion connected to one side of the first metal portion, a third metal portion connected to another side of the first metal portion and opposite to the second metal portion, a feed point disposed at the second metal portion, a first ground terminal, and a second ground terminal. The feed point, the first ground terminal and the second ground terminal are disposed in a straight line. The shape of the first metal portion is mirror-image symmetrical relative to the feed point, the first ground terminal and the second ground terminal.

Abstract: A method and a system for rendering VR video are disclosed. In the method, a base video model and an enhancement video model are built respectively, with UV coordinates being initialized. base video segments and enhancement video segments are obtained according to a user's viewport. A base video texture is generated according to pixel information of the base video segments and the UV coordinates of the base video model. An enhancement video texture is generated according to pixel information of the enhancement video segments and the UV coordinates of the enhancement video model. Pixel information is reconstructed by adding the base video texture and the enhancement video texture with each other according to alignment coordinates. An image is drawn according to the reconstructed pixel information. The method reduces data transmission and improves rendering efficiency without affecting the user's viewing experience.

Abstract: A method for manufacturing an active optical cable comprises (a) flip-chip packaging chips onto a circuit board to form a OE circuit board, (b) integrating the OE circuit board onto an optical bench to form a OE bench, (c) integrating the OE bench onto a printed circuit board to form a OE module, (d) molding encapsulant onto the OE bench, (e) coupling a hybrid cable onto the OE module, and (f) utilizing low temperature, low pressure injection molding process to form the active optical cable.

Abstract: A photoelectric conversion assembly is proposed. The photoelectric conversion assembly comprises a photoelectric conversion module having an interposer, at least one optical element and an optical bench. The at least one optical element is configured on the interposer, and the optical bench is used to support for the interposer. A circuit board is used to support for the photoelectric conversion module, having metal pads for coupling the at least one optical element. An optical transmission component is used for transmitting light. An optical ferrule is used for engaging with the photoelectric conversion module and an optical transmission component. A plug is used for electrically connecting the circuit board.

Abstract: A method for providing a user interface to stitch surveillance images of a scene is applied to an electronic device and includes providing a master camera and a slave camera for monitoring two surveillance regions of the scene, providing an identical feature in an overlapped area between the two surveillance regions to make the identical feature present in a master image captured by the master camera for one surveillance region and a slave image captured by the slave camera for the other surveillance region, the electronic device displaying the user interface, and the electronic device stitching the master image and the slave image according to the identical feature when a stitching function is triggered. The user interface has a master image zone displaying the master image, a stitching zone displaying the slave image, and a stitched zone displaying a stitched image for the master and slave images.

Abstract: A photoelectric conversion module comprises an optical bench having at least one lens array; a circuit board having conductive trace formed on the circuit board, configured on the optical bench; at least one optical element flip-chip packaged on the circuit board to couple to the conductive trace; and an optical waveguide having an optical reflection structure, wherein the at least one lens array aligns to the optical reflection structure or the at least one optical element.

Abstract: An antenna structure including a conductive housing, a substrate, a ground element and a radiation element is provided. The conductive housing includes an open slot and a conductive segment adjacent to each other. The radiation element is disposed on a first surface of the substrate and is electrically connected to the ground element. A second surface of the substrate faces the open slot and the conductive segment. The ground element is electrically connected to the conductive housing. The radiation element has a feeding point and forms a first path. An orthogonal projection of the radiation element on the conductive housing is partially overlapping with the conductive segment such that the conductive housing and the radiation element form a second path. The antenna structure operates in a first band and a second band through the first path and the second path.

Abstract: The present invention discloses a brain activity analysis method and apparatus, which is based on a nonlinear waveform decomposition technology, wherein the changes of the intrinsic features in brain waves are decomposed and demodulated to extract the modulation signals of the components, including the frequency-modulation signals and the amplitude-modulation signals. The present invention further uses a feature mask to determine whether to proceed further decomposition and demodulation of the extracted modulation signals. If not, the multidimensional changes of the intrinsic features are obtained according to the feature mask. Then, quantitation and identification is performed to obtain the status of brain function. The present invention not only effectively increases the accuracy of the identification but also uses the feature mask to obviously reduce the complexity and the load of computation.

Abstract: A wireless sensing device includes a wireless transmitter module, a microprocessor unit, and a wake-on unit. The wireless transmitter module is electrically connected to the microprocessor unit and the wake-on unit, respectively. The microprocessor unit is electrically connected to the wake-on unit. When the wireless transmitter module receives a sensing signal from outside and transmits it to the microprocessor unit, the microprocessor unit may enter a hibernation mode or a sleep mode form its previous on-duty mode depending on the level of the sensing signal. When the wireless transmitter module receives a wake-on signal from outside and transmits it to the wake-on unit, the wake-on unit generates a resume-from-hibernation command or a resume-from-sleep command for the microprocessor unit depending on the level of the wake-on signal so as to resume the microprocessor unit.

Abstract: A multiple antenna apparatus is provided. A first feed antenna unit is shared for receiving and transmitting radio frequency (RF) signals corresponding to a bandwidth of a first resonance mode, so as to increase antenna configurable space of the multiple antenna apparatus, and thus a closed slot antenna formed by a wire, a ground plane and a radiation element is able to be configured in the multiple antenna apparatus to receive and transmit the RF signals corresponding to a second resonance mode.

Abstract: The invention disclosed a signal processing system and method thereof, applicable to temperature compensation processing of resonance frequency (OSC) LC-tank oscillator.

Abstract: A photoelectric conversion assembly is proposed. The photoelectric conversion module comprises three parts, photoelectric conversion module, a printed circuit board (PCB) and a hybrid cable. The photoelectric conversion module comprises an interposer, at least one optical element configured on the interposer, and an optical bench for the printed circuit board and the interposer configured thereon. Electrical wires are used for coupling to the printed circuit board. An optical ferrule is used for engaging with the photoelectric conversion module and an optical fiber component. A plug is used for electrically connecting the printed circuit board. A first lens array is configured under the interposer. A mirror is configured under the first lens array. A second lens array is configured left side of the mirror.

Abstract: A method of monitoring a processing system for processing a substrate is provided. The method includes the following steps: acquiring data from the processing system for a plurality of parameters, the data including a plurality of data values; grouping the parameters into a plurality of sub-groups, each of the sub-groups including a plurality of correlated parameters; constructing a principle components analysis (PCA) model from the data values for the correlated parameters in a first one of the sub-groups, including normalizing the data values in the first one of the sub-groups with a first weighting factor and a second weighting factor, wherein the first weighting factor is different from the second weighting factor; and determining a statistical quantity using the PCA model.

Abstract: A method for downloading a VR video is disclosed. The method comprises: receiving a play request for a first video; calculating an average download speed; selecting a plurality of first video segments from a plurality of video segments of the first video according to the average download speed, wherein the plurality of video segments of the first video correspond to different resolutions and bitrates; determining a download link according to the plurality of first video segments; and downloading the plurality of first video segments according to the download link. The video segments, which need to be downloaded, are determined according to the average download speed, so that the amount of downloaded data can be decreased and the video transmission can be optimized. The present disclosure also provides a system for downloading a VR video.

Abstract: Disclosed a method and a system for real-time rendering displaying virtual reality (VR) using head-up display devices. The method comprises: obtaining relevant parameters including a camera matrix, a projection matrix, a model matrix and a center position of lens distortion; creating a 3D model and obtaining an original coordinate data of the 3D model; obtaining first coordinate data in accordance with the relevant parameters and the original coordinate data of the 3D model; performing lens distortion on the first coordinate data based on the center position of lens distortion to obtain second coordinate data; rasterizing the second coordinate data to obtain pixel information; and drawing an image in accordance with a VR video data and the pixel information. According to the present disclosure, the lens distortion on the coordinate data is performed in the 3D model, so that video and immersive rendering can be realized in one processing, thereby improving rendering efficiency.

Abstract: A VR video transcoding method is disclosed. In the method, source VR video data is decoded to obtain an audio data set and a frame data set type one. The source VR video data and the frame data set type one have a source resolution. A frame data set type two and a third frame data are obtained from the frame data set type one. The frame data set type two and the frame data set type three have the same target resolution and are obtained by different manners. An enhancement data set is obtained by subtracting the frame data set type three from the frame data set type two. A base video set is obtained by combining and segmenting the frame data set type two and the audio data set. An enhancement video set is obtained by encoding and segmenting the enhancement data set. The base video set and the enhancement video set are used for VR video playbacks. The base video set and the enhancement video set are transmitted separately and combined with each other into video content to improve transmission efficiency.

Abstract: A method and a system for providing a viewport division scheme for VR video streaming are disclosed. A projection area of VR video is obtained. The projection area is divided into a plurality of grid blocks. A core area is defined in the projection area and divided into a plurality of core blocks. A plurality of viewport blocks are obtained by combining the core blocks. A mapping relationship between the plurality of viewport blocks and the grid blocks is established. The plurality of viewport blocks are related to a user's field of view. The plurality of viewport blocks are obtained in accordance with a mapping table. The video data is processed by different methods for a viewport area and a non-viewport area to have a better viewing experience.

Abstract: A method and a system for rendering VR video are disclosed. In the method, a base video model and an enhancement video model are built respectively, with UV coordinates being initialized. base video segments and enhancement video segments are obtained according to a user's viewport. A base video texture is generated according to pixel information of the base video segments and the UV coordinates of the base video model. An enhancement video texture is generated according to pixel information of the enhancement video segments and the UV coordinates of the enhancement video model. Pixel information is reconstructed by adding the base video texture and the enhancement video texture with each other according to alignment coordinates. An image is drawn according to the reconstructed pixel information. The method reduces data transmission and improves rendering efficiency without affecting the user's viewing experience.

Abstract: A multiple antenna apparatus is provided. A first feed antenna unit is shared for receiving and transmitting radio frequency (RF) signals corresponding to a bandwidth of a first resonance mode, so as to increase antenna configurable space of the multiple antenna apparatus, and thus a closed slot antenna formed by a wire, a ground plane and a radiation element is able to be configured in the multiple antenna apparatus to receive and transmit the RF signals corresponding to a second resonance mode.

Abstract: Disclosed a method and a system for providing virtual reality (VR) video transcoding and broadcasting. The method comprises: obtaining a use's viewport; processing a VR video data into a basic video set and an enhancement video set in accordance with the user's viewport, wherein the basic video set comprises a plurality of basic video segments, the enhancement video set comprises a plurality of enhancement video segments, and the playback effect of the sum of the basic video segment and the enhancement video segment is better than that of the basic video segment; downloading the basic video segments and the enhancement video segments; and displaying a sum of two video data obtained by adding the basic video segments and the enhancement video segments in accordance with the user's viewport.