Abstract: An augmented reality apparatus includes a plurality of transmission lines, plural signal-generating circuits, at least one additional transmission line, at least one signal-processing circuit, a multiplexer having a plurality of inputs and at least one output, a plurality of matching networks, and an additional matching network coupling the additional transmission line to the output of the multiplexer. Example AR/VR devices include a camera configured to receive light from the external environment of the device and to provide a camera signal. The camera may include a surface variable lens including a support layer, an optical layer, a membrane layer, and an actuator. A computer-implemented method for anatomical electromyography test design includes identifying a wearable device having a frame including a plurality of electrodes, and calibrating the plurality of electrodes.

Abstract: A magnetically attractable Bluetooth speaker is disclosed, including a speaker housing, a loudspeaker, a control circuit board, and a magnet. The loudspeaker is electrically connected to the control circuit board. The speaker housing includes a limiting part for securing the magnet. The magnet is fixedly arranged in the limiting part, and the magnet is arranged outside the magnetic circuit range of the loudspeaker. With such a structure, by arranging the magnet in the speaker housing, the user experience of the speaker can be greatly improved, so that the user can place it in different manners depending on their different needs. Compared with the traditional ordinary speakers that can only be placed on a horizontal plane or a surface with a small slope, the speaker provided by the present disclosure has better flexibility in use.

Abstract: A magnetically attractable Bluetooth speaker is disclosed, including a speaker housing, a loudspeaker, a control circuit board, and a magnet. The loudspeaker is electrically connected to the control circuit board. The speaker housing includes a limiting part for securing the magnet. The magnet is fixedly arranged in the limiting part, and the magnet is arranged outside the magnetic circuit range of the loudspeaker. With such a structure, by arranging the magnet in the speaker housing, the user experience of the speaker can be greatly improved, so that the user can place it in different manners depending on their different needs. Compared with the traditional ordinary speakers that can only be placed on a horizontal plane or a surface with a small slope, the speaker provided by the present disclosure has better flexibility in use.

Abstract: Apparatuses and methods associated with shield lines, and/or complementary decoupling capacitors and/or electromagnetic absorbing materials are disclosed herein. In embodiments, an apparatus may include a substrate having a ground plane; and a first and a second transmission line disposed on the substrate. Further, the apparatus may include a shield line constituted with electromagnetic absorbing material disposed between the first and second transmission lines and not coupled with the ground plane. In embodiments, the substrate may further include a power plane having a plurality of edges and a plurality of spacing; a plurality of decoupling capacitors disposed on the power or ground plane; and electromagnetic absorbing materials adhered to the plurality of edges and disposed in the plurality of spacing. Other embodiments may be described and/or claimed.

Abstract: Apparatuses and methods associated with shield lines, and/or complementary decoupling capacitors and/or electromagnetic absorbing materials are disclosed herein. In embodiments, an apparatus may include a substrate having a ground plane; and a first and a second transmission line disposed on the substrate. Further, the apparatus may include a shield line constituted with electromagnetic absorbing material disposed between the first and second transmission lines and not coupled with the ground plane. In embodiments, the substrate may further include a power plane having a plurality of edges and a plurality of spacing; a plurality of decoupling capacitors disposed on the power or ground plane; and electromagnetic absorbing materials adhered to the plurality of edges and disposed in the plurality of spacing. Other embodiments may be described and/or claimed.