Abstract: A method for manufacturing silicon flakes includes steps as follows. A silicon material is contacted with a machining tool which includes at least one abrasive particle fixedly disposed thereon. The silicon material is scraped along a displacement path with respect to the machining tool to generate the silicon flakes having various particle sizes.

Abstract: A liquid-crystal antenna device includes a signal source, a driving module, a correction module, and a plurality of radiation units. The signal source provides an input electromagnetic wave. The driving module outputs a plurality of initial voltage signals according to a radiation address. The correction module receives the initial voltage signals and outputs a plurality of corrected voltage signals according to a lookup table. The radiation units respectively receive the corrected voltage signals and are coupled to the input electromagnetic wave to generate an output electromagnetic wave.

Abstract: Provided herein is a method for decolorizing textile materials under hydrothermal conditions using dye adsorbent materials. The process is non-toxic and environmentally friendly, and the adsorbent materials can be repeatedly used. The textile materials are textile materials dyeable with disperse dyes. Further provided is a system for decolorizing textile materials. The decolorization system is designed to allow the adsorbent materials to react with the textile materials in a contact manner and a non-contact manner.

Abstract: Methods and systems are disclosed for real-time tracking of a multiplayer ball game using a mobile computing device. The methods and systems are configured to receive an input video of the multiplayer ball game captured using a camera on the mobile computing device in a gaming area associated with n players, where n is an integer and n?2; detect a plurality of player postures, by performing a computer vision algorithm on each of a plurality of frames of the input video; extract an associated player feature from each of the plurality of player postures; assign each of the plurality of player postures, based on the associated player feature, to one of at least n posture groups, where each player is represented by one of the at least n posture groups; and determine a player location for each player, based on the player's posture group.

Abstract: Methods and systems for remote multiplayer gameplay are disclosed. An example method can include joining a multiplayer interactive physical game including first and second players competing in an activity; capturing a first game video of a first player in a first play of the multiplayer interactive physical game, using a first camera on a first mobile computing device in a first gaming area; determining a first object flow associated with the first player from the first game video, by performing an algorithm on one or more frames of the first game video to detect one or more key points of the first player; generating a first analytic based on the first object flow; receiving a second analytic associated with the second player in a second gaming area; and generating a feedback to the first player based on the first analytic or the second analytic.

Abstract: A semiconductor device includes a magnetic tunneling junction (MTJ) on a substrate, a first spacer on one side of the MTJ, and a second spacer on another side of the MTJ, in which the first spacer and the second spacer are asymmetric. Specifically, the MTJ further includes a first bottom electrode disposed on a metal interconnection, a capping layer on the bottom electrode, and a top electrode on the capping layer, in which a top surface of the first spacer is even with a top surface of the top electrode and a top surface of the second spacer is lower than the top surface of the top electrode and higher than the top surface of the capping layer.

Abstract: A toy building block set includes a socket block piece and at least one of first and second plug block pieces. The socket block piece has a socket wall body and at least one engaging hole of a regular polygonal shape. Each of the first and second plug block pieces has a plug body and at least one polygonal insert plug configured to be inserted into and in frictional engagement with the engaging hole with a first frictional force to permit rotation of the plug block piece relative to the socket block piece by a forcible torque and to keep a predetermined angle of the plug block piece relative to the socket block piece when the forcible torque is removed. The plug body is partially inserted into and in frictional engagement with the engaging hole with a second frictional force larger than the first frictional force.

Abstract: The present invention provides a light emitting diode (LED) driving circuit with low harmonic distortion. The LED driving circuit comprises: a rectifying circuit, a linear constant current circuit, a current limiting circuit, and a current limiting ramp slope determining circuit. The rectifying circuit is utilized for rectifying an alternating current (AC) power source to provide a direct current (DC) voltage output. The linear constant current circuit is utilized for driving at least an LED. The current limiting circuit is connected in parallel between the rectifying circuit and the linear constant current circuit, and utilized for generating a current limiting effect and determining a current limiting height. The current limiting ramp slope determining circuit is connected in parallel between the rectifying circuit and the linear constant current circuit and connected in series with the current limiting circuit, and utilized for determining a current limiting ramp slope.

Abstract: Methods and systems for virtual coaching and performance training using a mobile device are disclosed. The methods and systems perform the steps of capturing a training video of one or more players, using the camera on the mobile computing device; superimposing a visual cue onto the training video at a first location and for a cue period starting from a first time instant; determining whether at least one of the one or more players has responded to the visual cue at a second time instant within the cue period, by analyzing a body posture flow of each player between the first time instant and the second time instant, wherein each body posture flow is extracted from the training video by performing a computer vision algorithm on one or more frames of the training video; and in response to determining that at least one player has responded to the visual cue, generating a feedback to the one or more players.

Abstract: The disclosure provides a semiconductor memory device including a substrate having a memory cell region and an alignment mark region; a dielectric layer covering the memory cell region and the alignment mark region; conductive vias in the dielectric layer within the memory cell region; an alignment mark trench in the dielectric layer within the alignment mark region; and storage structures disposed on the conductive vias, respectively. Each of the storage structures includes a bottom electrode defined from a bottom electrode metal layer, a magnetic tunnel junction (MTJ) structure defined from an MTJ layer, and a top electrode. A residual metal stack is left in the alignment mark trench. The residual metal stack includes a portion of the bottom electrode metal layer and a portion of the MTJ layer.

Abstract: A semiconductor device includes a magnetic tunneling junction (MTJ) on a substrate, a first spacer on one side of the MTJ, and a second spacer on another side of the MTJ, wherein the first spacer and the second spacer are asymmetric. Specifically, the MTJ further includes a first bottom electrode disposed on a metal interconnection, a capping layer on the bottom electrode, and a top electrode on the capping layer, in which a top surface of the first spacer is even with a top surface of the top electrode and a top surface of the second spacer is lower than the top surface of the top electrode and higher than the top surface of the capping layer.

Abstract: Methods and systems for detecting a player in a gaming environment using a mobile device are disclosed. The methods and systems perform the steps of receiving calibration data from a camera of a user device, the calibration data comprising a first reference point associated with the gaming environment, a second reference point associated with the gaming environment, and sensor data associated with the user device; computing a camera projection based on the first reference point, the second reference point, and the sensor data obtained from the user device; receiving an input video of the gaming environment, wherein the input video is captured using the camera, and wherein frames of the input video comprise at least one player in the gaming environment; identifying an image location of the player by performing a computer vision algorithm on the input video; and determining a real-world location of the player based on the image location and the camera projection.

Abstract: Methods and systems for remote real-time or asynchronous multiplayer gameplay using mobile devices are disclosed. The methods and systems include steps of mounting mobile computing devices in gaming areas associated with users; initiating a game between the users; analyzing movements of the users, ball(s), and/or other game equipment of the game by performing a computer vision algorithm on one or more frames of an input video of the game; and providing feedback to the users, where feedback may include instructions to be performed by the users and player analytics. Embodiments of the present invention use computer vision techniques to enable a resource-limited mobile device such as a smartphone to conduct the aforementioned steps.

Abstract: A magnetoresistive random access memory (MRAM) is provided in the present invention, including a conductive plug with a protruding portion extending outwardly on one side and a notched portion concaving inwardly on the other side of the upper edge of conductive plug, and a memory cell with a bottom electrode electrically connecting with the conductive plug, a magnetic tunnel junction (MTJ) on the bottom electrode, and a top electrode on the magnetic tunnel junction, wherein the bottom surface of memory cell completely overlaps the top surface of conductive plug.

Abstract: A magnetoresistance device is disclosed, comprising a bottom electrode, a magnetic tunneling junction (MTJ) disposed on the bottom electrode, a top electrode disposed on the magnetic tunneling junction, a first spacer disposed on the magnetic tunneling junction and covering a sidewall of the top electrode, and a second spacer disposed on the first spacer and conformally covering along a sidewall of the first spacer, a sidewall of the magnetic tunneling junction and a sidewall of the bottom electrode.

Abstract: A display device includes a first panel and a second panel disposed on the first panel. The first panel has a first working area and a plurality of pixel areas disposed in the first working area. The second panel has a second working area and a plurality of pixel areas disposed in the second working area. The second working area overlaps with the first working area, and the second working area is smaller than the first working area.

Abstract: Methods and systems for mobile device-based touchless control can include receiving an image of a user and applying a convolutional neural network to the image to determine a feature map. Further, a key-points map and an affinity-field map can be determined based on the feature map, and the pose of the user can be determined based on the maps. The methods and system further include identifying an activation gesture of the user and determining a validity of a bounding box associated with the pose of the user, and tracking the pose of the user and a portion of a body of the user for performing the touchless control. Further, the methods and systems include determining a mapping between the portion of the user's body and a cursor position associated with an application, and moving the cursor position to enable touchless user interaction. Embodiments use computer vision techniques to enable a resource-limited mobile device to conduct the aforementioned steps.

Abstract: A semiconductor device includes a magnetic tunneling junction (MTJ) on a substrate, a first spacer on one side of the MTJ, and a second spacer on another side of the MTJ, wherein the first spacer and the second spacer are asymmetric. Specifically, the MTJ further includes a first bottom electrode disposed on a metal interconnection, a capping layer on the bottom electrode, and a top electrode on the capping layer, in which a top surface of the first spacer is even with a top surface of the top electrode and a top surface of the second spacer is lower than the top surface of the top electrode and higher than the top surface of the capping layer.

Abstract: A magnetoresistance device is disclosed, comprising a bottom electrode, a magnetic tunneling junction (MTJ) disposed on the bottom electrode, a top electrode disposed on the magnetic tunneling junction, a first spacer disposed on the magnetic tunneling junction and covering a sidewall of the top electrode, and a second spacer disposed on the first spacer and conformally covering along a sidewall of the first spacer, a sidewall of the magnetic tunneling junction and a sidewall of the bottom electrode.

Abstract: Methods and systems for virtual coaching and performance training using a mobile device are disclosed. The methods and systems perform the steps of capturing a training video of a player using a camera on the mobile device; augmenting the training video with a visual cue for a cue period starting from a first time instant; determining whether the player has responded to the visual cue at a second time instant within the cue period, by analyzing a body posture flow of the player between the first time instant and the second time instant, wherein the body posture flow is extracted from the training video by performing a computer vision algorithm on one or more frames of the training video; and in response to determining that the player has responded to the visual cue, generating a feedback to the player.