Abstract: An apparatus for operating an optical-reflector includes a first carrier configured to rotate based on a first direction perpendicular to an optical axis, a second carrier having an optical-reflector for reflecting a light toward a lens and accommodated in the first carrier to rotate based on a second direction perpendicular to both the optical axis and the first direction with respect to the first carrier, a plurality of magnets provided to the second carrier at different positions, a plurality of hall sensors configured to output signals respectively corresponding to the positions of the plurality of magnets, and a position control unit configured to calculate the signals input from the plurality of hall sensors to generate a position signal that is a signal about a current position of the second carrier.

Abstract: An apparatus for supporting an optical reflector to change a path of light and introduce the light to a lens includes an inclined unit configured to support a reflective surface of the optical reflector; a guide wall formed at a side of the inclined unit to support a side surface of the optical reflector; a guide opening formed in the guide wall; and a support member made of a material different from the material of the optical reflector and inserted into the guide opening so that an inner surface of the support member is fixedly coupled to the side surface of the optical reflector.

Abstract: An apparatus for driving an optical-reflector for optical image stabilization (OIS) with a multi-axial structure includes a support frame having a first groove rail formed therein, an optical-reflector disposed on the support frame to reflect light to a lens, a middle frame having a first guide rail corresponding to the first groove rail and a second groove rail formed therein, a base frame having a second guide rail formed corresponding to the second groove rail, a first ball disposed between the first groove rail and the first guide rail, a second ball disposed between the second groove rail and the second guide rail, a first driving unit configured to move the support frame in a first direction on the basis of the middle frame, and a second driving unit configured to move the middle frame in a second direction, different from the first direction, on the basis of the base frame.

Abstract: An apparatus for driving an optical system with a memory unit includes a main frame having an optical system; a base frame configured to accommodate the main frame; a driving unit configured to move the main frame in a first direction perpendicular to an optical axis with respect to the base frame; and a memory unit configured to store first reference position information that is information about a position at which the optical system is aligned in the first direction.

Abstract: A differential Colpitts voltage-controlled oscillator according to example embodiments includes a feedback circuit constituting a Colpitts oscillator structure, a negative resistance circuit including a first negative resistance transistor and a second negative resistance transistor cross-coupled to each other and connected to the feedback circuit, a resonance circuit including a first inductor and a variable capacitor connected to both ends of the first inductor to generate differential output signals base on outputs of the feedback circuit, and a phase noise reduction circuit coupled to the feedback circuit to remove phase noise.

Abstract: A near-infrared fluorescent probe for detecting ALP is represented by Chemical 1. The fluorescent probe capable of detecting ALP can selectively detect ALP only quickly and accurately. In addition, the fluorescent probe allows monitoring of a biological phenomenon occurring in cells and tissues through noninvasive in-vivo imaging and during the early osteogenic differentiation in real time.

Abstract: An apparatus for driving an optical-reflector includes a support frame having a groove line formed therein, an optical-reflector installed at the support frame to change a path of light input through an opening so that the light is put into a lens, a base frame having a guiding groove formed with a shape corresponding to the groove line, and a plurality of balls disposed between the groove line and the guiding groove so that the support frame and the base frame are kept in a spaced state, and a driving unit configured to move the support frame along a path corresponding to the groove line or the guiding groove.

Abstract: A series-fed E-shaped patch antenna array has co-polarized parasitic patches to improve aperture efficiency. Each of microstrip parasitic patches is inserted between a plurality of microstrip E-shaped patch antennas. The parasitic patches are co-polarized with the E-shaped patch antennas so that the current flows in the parasitic patches and the E-shaped patch antennas have the same polarity. Additional radiation from the co-polarized microstrip parasitic patches significantly improves gain flatness, gain and aperture efficiency due to offset resonance frequency.

Abstract: A series-fed E-shaped patch antenna array has co-polarized parasitic patches to improve aperture efficiency. Each of microstrip parasitic patches is inserted between a plurality of microstrip E-shaped patch antennas. The parasitic patches are co-polarized with the E-shaped patch antennas so that the current flows in the parasitic patches and the E-shaped patch antennas have the same polarity. Additional radiation from the co-polarized microstrip parasitic patches significantly improves gain flatness, gain and aperture efficiency due to offset resonance frequency.

Abstract: The display apparatus includes a display assembly. The display apparatus further includes a mounting device on which the display assembly is mounted and a rotating shaft forming the center of rotation of the display assembly. The rotating shaft is at a fixed location for the mounting device and the display assembly, respectively. The display assembly is switched between a first mode and a second mode rotated from the first mode about a rotating shaft and is changed in the height of the center of the display assembly.

Abstract: An apparatus for driving an optical-reflector for optical image stabilization (OIS) with a multi-axial structure includes a support frame having a first groove rail formed therein, an optical-reflector disposed on the support frame to reflect light to a lens, a middle frame having a first guide rail corresponding to the first groove rail and a second groove rail formed therein, a base frame having a second guide rail formed corresponding to the second groove rail, a first ball disposed between the first groove rail and the first guide rail, a second ball disposed between the second groove rail and the second guide rail, a first driving unit configured to move the support frame in a first direction on the basis of the middle frame, and a second driving unit configured to move the middle frame in a second direction, different from the first direction, on the basis of the base frame.

Abstract: Disclosed is a wireless transceiver system including an image transmitting apparatus and an image receiving apparatus. The image receiving apparatus includes a receiving antenna having a head direction set for each received beam and a control unit that measures one or more of received signal strength, bit error rate, and signal to noise ratio for each received beam and tracks a receiving beam direction so as to track the received beam and create head tracking information.

Abstract: An apparatus for supporting an optical reflector to change a path of light and introduce the light to a lens includes an inclined unit configured to support a reflective surface of the optical reflector; a guide wall formed at a side of the inclined unit to support a side surface of the optical reflector; a guide opening formed in the guide wall; and a support member made of a material different from the material of the optical reflector and inserted into the guide opening so that an inner surface of the support member is fixedly coupled to the side surface of the optical reflector.

Abstract: An antenna device includes a horn antenna including a waveguide and a horn connected to the waveguide, the horn having a shape widening toward an opening direction, a beamforming network including a plurality of input ports and a plurality of output ports and changing a phase of output port signals output from the output ports based on input port signals applied to the input ports, and an antenna array disposed in the horn antenna and connected to the output ports of the beamforming network.

Abstract: A differential Colpitts voltage-controlled oscillator according to example embodiments includes a feedback circuit constituting a Colpitts oscillator structure, a negative resistance circuit including a first negative resistance transistor and a second negative resistance transistor cross-coupled to each other and connected to the feedback circuit, a resonance circuit including a first inductor and a variable capacitor connected to both ends of the first inductor to generate differential output signals base on outputs of the feedback circuit, and a phase noise reduction circuit coupled to the feedback circuit to remove phase noise.

Abstract: A near-infrared fluorescent probe for detecting ALP is represented by Chemical 1. The fluorescent probe capable of detecting ALP can selectively detect ALP only quickly and accurately. In addition, the fluorescent probe allows monitoring of a biological phenomenon occurring in cells and tissues through noninvasive in-vivo imaging and during the early osteogenic differentiation in real time.

Abstract: An apparatus for driving an optical-reflector includes a support frame having a groove line formed therein, an optical-reflector installed at the support frame to change a path of light input through an opening so that the light is put into a lens, a base frame having a guiding groove formed with a shape corresponding to the groove line, and a plurality of balls disposed between the groove line and the guiding groove so that the support frame and the base frame are kept in a spaced state, and a driving unit configured to move the support frame along a path corresponding to the groove line or the guiding groove.

Abstract: A wireless communication system provides an antenna apparatus for the wireless communication system. The antenna apparatus includes a base, a plurality of Yagi-Uda antenna modules disposed in a specific arrangement, a plurality of floating metal modules correspondingly installed in upper portions of the Yagi-Uda antenna modules and selectively connected to a corresponding Yagi-Uda module among the plurality of Yagi-Uda antenna modules, a switching element for selectively switching the floating metal module and the Yagi-Uda antenna module, and a controller for controlling the Yagi-Uda antenna module to comprise a directivity in a desired direction by selectively switching the switching element.

Abstract: Substrate embedded horn antenna includes a dielectric, metal patterns, metal vias and a ground plate. The metal patterns are embedded by being stacked in dielectric. Metal patterns are hollow rectangle types or hollow circle types. Metal vias connect layers of metal patterns by being embedded between layers of metal patterns. Ground plate is formed in an upper side of dielectric. Metal patterns form waveguide structure by being stacked in radial shape. Waveguide structure propagates electromagnetic wave by focusing electromagnetic wave. Embedded horn antenna capable of selectively using vertical radiation and horizontal radiation may be implemented using the via and metal pattern in dielectric substrate. Embedded horn antenna may be implemented in small size with high gain. Vertical embedded horn antenna and horizontal embedded horn antenna may be implemented in a substrate. Method of manufacturing embedded horn antenna capable of selectively using vertical radiation and horizontal radiation may be provided.

Abstract: Disclosed is a millimeter wave antenna for diagonal radiation. A first metal layer and a second metal layer having a form of microstrip wire are coated on the bottom surface and at least a partial region of the top surface of a dielectric substrate, respectively. When viewed in a direction perpendicular to the top surface of the dielectric substrate, the second metal layer is covered by the first metal layer. The microstrip wire of the second metal layer may have a length of more than half of a wavelength of a RF signal. The long-wire antenna has a radiation pattern in upward diagonal direction when a signal to transmit is fed under a condition that the first metal layer is grounded. The form of the second metal layer may be a straight line, Y-shape, ?-shape, or etc. An impedance matching metal layer may be added to the second metal layer.