Abstract: A high-voltage battery control apparatus includes a plurality of high-voltage battery controllers configured to respectively monitor states of a plurality of high-voltage batteries included in one high-voltage battery pack depending on a predetermined period for monitoring the high-voltage battery pack, wherein the high-voltage battery controllers are configured to transition state of the plurality of high-voltage battery controllers together to an end state when a high-voltage battery controller among the high-voltage battery controllers, which has completed a monitoring operation, first waits until all monitoring operations of the high-voltage battery controllers that have not yet completed monitoring operations are completed and then all the monitoring operations of the high-voltage battery controllers are completed.

Abstract: A peripheral component interconnect express (PCIe) device includes a common function performing operations associated with a PCIe interface according to a function type, the common function being programmable to be a function type selected from a plurality function types, an access identification information controller generating first access identification information for allowing an access to the common function, and providing the first access identification information to an assigned system image to which the common function has been assigned, a data packet receiver receiving a data packet including target identification information indicating a target system image from the target system image, and an access allowance determiner determining whether or not to allow the target system image to access the common function based on the first access identification information and the target identification information.

Abstract: An electronic device includes a main board, a ground plate, at least one antenna, and at least one cable. The ground plate is disposed on the main board and include at least one cable containing groove containing at least a part of the at least one cable. The at least one antenna is disposed on the ground plate and electrically connected to the ground plate. The at least one cable electrically connects the at least one antenna with the main board and is at least partially disposed in the at least one cable containing groove.

Abstract: An adaptable antenna apparatus for a base station is provided. The adaptable antenna apparatus includes a first antenna having a first antenna array, a second antenna rotatably coupled to the first antenna and having a second antenna array, and a main controller provided in one of the first antenna and the second antenna, wherein the main controller is configured to apply a control signal to the first antenna and the second antenna.

Abstract: An adaptable antenna apparatus for a base station is provided. The adaptable antenna apparatus includes a first antenna having a first antenna array, a second antenna rotatably coupled to the first antenna and having a second antenna array, and a main controller provided in one of the first antenna and the second antenna, wherein the main controller is configured to apply a control signal to the first antenna and the second antenna.

Abstract: Provided is a method in which a Digital Pre-Distorter (DPD) performs digital pre-distortion on a received In-phase (I) signal, a received Quadrature-phase (Q) signal, a feedback I signal, and a feedback Q signal; a mixer mixes a signal output from the DPD with a frequency signal output from an oscillator; each of n phase shifters phase-shifts a signal output from the mixer according to a preset beamforming pattern; each of n Power Amplifiers (PAs) amplifies a signal output from an associated phase shifter according to a gain, the PAs connected to the associated phase shifter on a one-to-one basis; each of n envelope detectors detects an envelope signal from a signal output from an associated PA, the envelope detector connected to the associated PA on a one-to-one basis; and a control unit determines whether the n PAs operate normally, using the envelope signals output from the n envelope detectors.

Abstract: An electronic device includes a main board, a ground plate, at least one antenna, and at least one cable. The ground plate is disposed on the main board and include at least one cable containing groove containing at least a part of the at least one cable. The at least one antenna is disposed on the ground plate and electrically connected to the ground plate. The at least one cable electrically connects the at least one antenna with the main board and is at least partially disposed in the at least one cable containing groove.

Abstract: An apparatus for multiple antennas having a low coupling coefficient in a wide frequency bandwidth in a wireless communication system is provided. To obtain the low coupling coefficient in the wide frequency bandwidth by minimizing interference between antennas which are close to each other, without an additional device, in the wireless communication system, the apparatus includes a transceiver and a line for decreasing a coupling coefficient. The transmitter includes a first antenna and a second antenna for transmitting and receiving signals over a radio channel and the line is indirectly connected the first antenna and the second antenna using a physically disconnected line.

Abstract: A multiple-input multiple-output (MIMO) antenna and a communication device using the same is provided. The MIMO antenna includes a plurality of antenna elements in which a feeding unit is formed at one end, and another end is connected to a ground, and a connection unit which connects the antenna elements.

Abstract: A The present invention relates to a phase matching band-pass filter using exponential function approximation, comprising an inductor including a parasitic resistor, a first device wherein a first amplifier is connected in a feedback mode, a capacitor including a parasitic resistor, a plurality of filter devices including a second device that is connected with a second amplifier in a feedback mode, and a coupling capacitor that connects the plurality of filter devices; the impedance of the first device has an increasing exponential function relation with a frequency, impedance of the second device has a decreasing exponential function relation with the frequency, and the first device is connected with the second device in parallel. According to the phase matching band-pass filter using exponential function approximation of this invention, conventional inductors and capacitors can be used 0 without modification or use of negative resistance, resulting in a high-performance phase matching band-pass filter.

Abstract: An antenna apparatus that may be adapted to various environments. The antenna apparatus includes a radiation unit to transmit and receive in a 360° radius including a plurality of radiators, each radiator configured to radiate a main emission pattern in different direction; and a switch unit configured to selectively operate each of the plurality of radiators.

Abstract: Described are an apparatus and a method for recovering styrene monomer using an auxiliary solvent, more particularly an apparatus and a method for recovering styrene monomer through pyrolysis of waste polystyrene capable of improving recovery ratio of styrene monomer using an auxiliary solvent such as steam, preventing repolymerization of pyrolyzed styrene monomer and effectively preventing production of unwanted high molecular weight materials.

Abstract: A multiple-input multiple-output (MIMO) antenna and a communication device using the same is provided. The MIMO antenna includes a plurality of antenna elements in which a feeding unit is formed at one end, and another end is connected to a ground, and a connection unit which connects the antenna elements.

Abstract: A Global Positioning System (GPS) antenna apparatus in a wireless communication device is provided. The GPS antenna apparatus includes a GPS antenna radiator and at least one blocking layer. The GPS antenna radiator receives a GPS signal. The at least one blocking layer is installed proximate to the GPS antenna radiator so as to block an external noise introduced to the GPS antenna radiator.

Abstract: A Multiple Input Multiple Output (MIMO) antenna system adaptable to an environmental multiplicity is provided. A MIMO antenna system includes a first antenna element, a second antenna element, a receiver for receiving at least one of different polarized signals through the first antenna element, a channel estimator for estimating a channel using a signal received via the receiver and a signal received via the second antenna element, and a correlation comparator for controlling the receiver to receive a specific polarized signal according to a correlation calculated from the estimated channel.

Abstract: A multiple-input multiple-output (MIMO) antenna and an antenna system using the same are provided. The MIMO antenna includes a plurality of antenna elements in which a feeding unit is formed at one end, and another end is connected to a ground, and a connection unit which connects the antenna elements.

Abstract: A The present invention relates to a phase matching band-pass filter using exponential function approximation, comprising an inductor including a parasitic resistor, a first device wherein a first amplifier is connected in a feedback mode, a capacitor including a parasitic resistor, a plurality of filter devices including a second device that is connected with a second amplifier in a feedback mode, and a coupling capacitor that connects the plurality of filter devices; the impedance of the first device has an increasing exponential function relation with a frequency, impedance of the second device has a decreasing exponential function relation with the frequency, and the first device is connected with the second device in parallel. According to the phase matching band-pass filter using exponential function approximation of this invention, conventional inductors and capacitors can be used 0 without modification or use of negative resistance, resulting in a high-performance phase matching band-pass filter.

Abstract: An apparatus for multiple antennas having a low coupling coefficient in a wide frequency bandwidth in a wireless communication system is provided. To obtain the low coupling coefficient in the wide frequency bandwidth by minimizing interference between antennas which are close to each other, without an additional device, in the wireless communication system, the apparatus includes a transceiver and a line for decreasing a coupling coefficient. The transmitter includes a first antenna and a second antenna for transmitting and receiving signals over a radio channel and the line is indirectly connected the first antenna and the second antenna using a physically disconnected line.

Abstract: A concurrent mode antenna system includes an antenna which generates a plurality of operating frequencies that are available at a same time, the antenna comprising a plurality of feed points; and a signal processing circuit which is connected to the feed points and processes radio signals transmitted and received by the antenna. Accordingly, the antenna system can not only provide various wireless services corresponding to the respective operating frequency bands on the single antenna but also miniaturize the antenna system. Furthermore, the antenna system can achieve the insertion loss prevention, the simplified structure, and the lower cost.

Abstract: Disclosed are an apparatus and a method for recovering styrene monomer using an auxiliary solvent, more particularly an apparatus and a method for recovering styrene monomer through pyrolysis of waste polystyrene capable of improving recovery ratio of styrene monomer using an auxiliary solvent such as steam, preventing repolymerization of pyrolyzed styrene monomer and effectively preventing production of unwanted high molecular weight materials.