Abstract: Planar inverted-F antenna (PIFA) type antenna using antenna patterns formed on opposite ends of a PCB. The PIFA type antenna includes a first antenna pattern provided on an upper surface of a PCB; a second antenna pattern provided on a lower surface of the PCB; and a via provided in the PCB and connecting the first antenna pattern with the second antenna pattern.

Abstract: A cylindrical battery cell includes an electrode assembly having a first electrode tab with a first polarity and a second electrode tab with a second polarity; a battery can having an open portion formed at a lower end and a closed portion formed at an upper end, configured to accommodate the electrode assembly through the open portion, and electrically connected to the second electrode tab; a cell terminal electrically connected to the first electrode tab, exposed to an outside of the battery can through the closed portion of the battery can, and electrically insulated from the battery can; a first current collecting plate having a first surface and a second surface opposite to the first surface, wherein the first surface is coupled to the first electrode tab and the second surface is coupled to the cell terminal; and a terminal fastening member configured to mechanically fasten the cell terminal and the first current collecting plate.

Abstract: The present invention relates to a method for preparing a ceramic solid electrolyte having a even particle distribution, excellent crystallinity, and high ionic conductivity. Step 1 for preparing the ceramic solid electrolyte particles may be a step for adding and mixing raw materials to distilled water to prepare a solid electrolyte precursor. Step 2 may be a step for mixing the solid electrolyte precursor with a ball-mill. Step 3 may be a step for drying first by rotary concentrating or spraying. Step 4 may be a step for drying second in a dryer at 80° C. for at least 24 hours to completely remove the distilled water solvent. Step 5 may be a step for calcining first ceramic particles in a heat treatment device and firing second the ceramic particles.

Abstract: The present invention provides a solid oxide fuel cell including a fuel electrode support including Ni-YSZ; a functional layer positioned on the fuel electrode support; an electrolyte layer positioned on the functional layer; an interlayer positioned on the electrolyte layer; and an air electrode layer positioned on the interlayer, wherein the functional layer includes gadolinium-doped ceria (GDC) nanoparticles dispersed.

Abstract: A buckle includes: a plug member which includes support arms formed at both ends in a forward direction of a base, and a support part formed forward from the base between the two support arms; a socket member that includes support chambers formed at both ends where the support arms are inserted, a central chamber formed between the two support chambers and having an open front, a retained part formed at the rear end of the central chamber, and a first magnet embedded inside the central chamber; and a locking member which is rotatably mounted on the support part, and includes a second magnet embedded in the center to correspond with the first magnet when the plug member and the socket member are coupled.

Abstract: A wide band matching network for power amplifier impedance matching, the wide band matching network comprising: a power amplifier transistor connected to an output network; the output network including: a series capacitor; an on-chip transformer connected to the capacitor in series, wherein the transformer and the capacitor act as a second order filter; and a port connected to the capacitor and a receiver switch.

Abstract: A strap bar device includes: a strap accessory which includes two support parts facing each other to be spaced apart from each other, and a through-hole and a support groove formed in the two support parts to face each other; and a strap bar which is inserted through the through-hole and is supported in the through-hole and the support groove. A strap is connected to the strap bar.

Abstract: A vehicular display apparatus is provided. The vehicular display apparatus includes a driving device installed in a housing, a display module configured to move to an inner portion or an outer portion of the housing, based on a mechanical operation of the driving device, and a controller unit configured to control the mechanical operation of the driving device. The driving device includes a gear configured to move the display module to the inner portion or the outer portion of the housing and a light emitting sensor and a light receiving sensor facing each other with the gear therebetween.

Abstract: A display system control device includes: a memory unit storing at least one of a reference color coordinate value for each control mode or a reference luminance value for each control mode, a display color coordinate value, and a display luminance value; and a control unit controlling the display system based on a received control mode and the information stored in the memory unit, wherein based on the received control mode, the control unit corrects the display color coordinate value based on the reference color coordinate value for each control mode, corrects the display luminance value based on the reference luminance value for each control mode, or corrects the display color coordinate value and the display luminance value respectively based on the reference color coordinate value for each control mode and the reference luminance value for each control mode.

Abstract: A method of compensating for IQ mismatch (IQMM) in a transceiver may include sending first and second signals from a transmit path through a loopback path, using a phase shifter to introduce a phase shift in at least one of the first and second signals, to obtain first and second signals received by a receive path, using the first and second signals received by the receive path to obtain joint estimates of transmit and receive IQMM, at least in part, by estimating the phase shift, and compensating for IQMM using the estimates of IQMM. Using the first and second signals received by the receive path to obtain estimates of the IQMM may include processing the first and second signals received by the receive path as a function of one or more frequency-dependent IQMM parameters.

Abstract: Provided are an organic light emitting element (OLED) display system and a control method thereof. In more detail, the system disposed in a moving object includes: an OLED display including a first organic light-emitting layer and a second organic light-emitting layer; and a control unit controlling on/off of at least one of the first organic light-emitting layer and the second organic light-emitting layer, wherein the second organic light-emitting layer has a larger beam angle than the first organic light-emitting layer, and the control unit controls the on/off of the at least one of the first organic light-emitting layer and the second organic light-emitting layer based on a speed of the moving object.

Abstract: Disclosed is a device including a first line, a second line including a first section disposed on a first side of the first line and a second section disposed on a second side of the first line, the second side being opposite to the first side and the second section being separate from the first section by a distance, and at least one bridge electrically connecting an end of the first section with an end of the second section and extending across the first line. The device may be a directional coupler that achieves significantly higher directivity than conventional directional coupler structures, and hence, improves power detection accuracy.

Abstract: The present invention includes: a porous structure containing an oxygen ion conductive material; and a coating layer disposed on the porous structure and containing an electronically conductive material, in which a content of the oxygen ion conductive material is greater than that of the electronically conductive material, and the coating layer is uniformly formed to a thickness of 20 nm or less.

Abstract: The present invention provides a method of preparing an optical laminate including a substrate and a thermochromic layer formed on the substrate where the thermochromic layer includes a vanadium oxide cluster. The method includes: a formation step of applying a solution containing vanadium oxide particles onto the substrate to form a coating layer, a photo-evaporation step of emitting light to remove organic matter from the coating layer; and a photo-sintering step of emitting light to photo-sinter the vanadium oxide particles contained in the coating layer to prepare a thermochromic layer including a vanadium oxide cluster.

Abstract: The present disclosure provides a large-area blank wherein no crystal-phase peak exists in the range of 2? 10-70, and the degree of crystallinity of 0.00% in an X-ray diffraction analysis pattern using CuK? rays, but crystalline particles having an average particle size of 10-70 nm are confirmed to be distributed in an amorphous SiO2—Li2O—Al2O3-series glass matrix from an SEM-based analysis, and the blank has a long-axis length of at least 60 mm and a thickness of at least 6 mm. The present disclosure has the following advantages: the blank is a workpiece having a large area and excellent processability such that processability can be improved during cutting, thereby reducing tool resistance and wear ratio, and increasing the tool lifespan; edge chipping can be reduced during processing; when fabricating multiple dental restorations successively by using a single blank, the blank use efficiency can be improved, and dental restoration productivity can be improved.

Abstract: A radio frequency integrated circuit (RFIC) and method of communication are provided. The RFIC includes phased-locked loop (PLL) and data stream circuitry and a plurality of tiles in communication with the PLL and data stream circuitry. The plurality of tiles includes comprising at least one tile for each frequency band of the RFIC. The plurality of tiles are configured to communicate a data stream signal between tiles in a cascading sequence. Each tile of the plurality of tiles includes a plurality of up/down conversion mixers for converting the data stream signal between an intermediate frequency (IF) and a radio frequency (RF). Each tile also includes a plurality of front end (FE) elements, each in communication with a corresponding antenna and an up/down conversion mixer of the plurality of up/down conversion mixers.