Abstract: An air conditioner includes a housing comprising an external panel defining an external appearance and having an opening formed at the external panel; a heat exchanger configured to exchange heat with air flowing into the housing; and an air discharge unit configured to discharge air heat-exchanged by the heat exchanger out of the housing. The air discharge unit includes a first discharge unit connected to the opening and discharging air; and a second discharge unit provided at the external panel and discharging air. A method of blowing heat-exchanged air may be changed in accordance with an environment of a user.

Abstract: A lithium secondary battery includes a cathode including a cathode active material that includes a lithium metal oxide, an anode facing the cathode and including an anode electrode active material that includes a graphite-based active material and a silicon-carbon composite, and an electrolyte solution including a lithium salt and an organic solvent, the lithium salt including lithium bis(fluorosulfonyl)imide (LiFSI) and the organic solvent including an acetate-based solvent. A content of the silicon-carbon composite is in a range from 5 wt % to 12 wt % based on a total weight of the anode active material.

Abstract: Provided are a silicone-modified polyester resin having excellent mechanical properties, weatherability, and hydrolysis resistance, and a powder coating composition containing the same.

Abstract: A semiconductor manufacturing device comprising a support unit in a chamber. A showerhead disposed between first and second plasma regions. First and second gas supply units injecting first and second process gases, respectively, into the second plasma region through the showerhead. The showerhead includes plasma penetration portions passing a portion of the plasma generated in the first plasma region therethrough. First gas flow paths injecting the first process gas into a first zone of the showerhead. Second gas flow paths injecting the second process gas into a second zone of the showerhead that surrounds the first zone. First and second cavities connected to the first and second gas flow paths, respectively. The first and second cavities diffusing the first and second process gases, respectively. First and second gas spraying holes connected to the first and second cavities, respectively, and facing the second plasma region.

Abstract: An apparatus and method for detecting a defective battery cell is proposed. The proposed apparatus includes a charger for supplying current to cause a battery cell to maintain a constant voltage, a measurement part for measuring the voltage and current of the battery cell, and a controller for determining whether a defect exists in the battery cell on the basis of the current measured by the measurement part, whereby the defective battery cell may be detected with high accuracy, a time required for the detection may be shortened, and a space required for the detection may also be reduced.

Abstract: A smart toothbrush is provided. The smart toothbrush includes a toothbrush head configured to be provided with bristles, a toothbrush body configured to be connected to the toothbrush head and to be able to be held, a temperature sensor configured to measure a temperature within an oral cavity of a user while the user is brushing teeth using the smart toothbrush, and a processor configured to determine a tooth brushing section in which the user is brushing teeth within the oral cavity, based on a temperature value measured by the temperature sensor.

Abstract: A smart toothbrush is provided. The smart toothbrush includes a toothbrush head configured to be provided with bristles, a toothbrush body configured to be connected to the toothbrush head and to be able to be held, a temperature sensor configured to measure a temperature within an oral cavity of a user while the user is brushing teeth using the smart toothbrush, and a processor configured to determine a tooth brushing section in which the user is brushing teeth within the oral cavity, based on a temperature value measured by the temperature sensor.

Abstract: A MIMO antenna apparatus is provided. The MIMO antenna apparatus includes a plurality of antenna devices each having an operation line extending parallel by a predetermined extension length from one end portion and configured to operate in a resonant frequency band when power is supplied. The apparatus also includes a main board divided into a device area and aground area. The apparatus further includes a plurality of ground pads each extending from the ground plate to the device area in the main board and configured to connect the one end portion of each of the antenna devices to the ground plate. The apparatus also includes a plurality of feeding pads mounted adjacent to the ground pad in the device area and configured to connect each of the antenna devices to the main board and to provide power to each of the antenna devices.

Abstract: A method and a circuit for controlling a reception path of a multi-standby terminal are provided. If a first communication module is in a transmission state, all filters disposed in a reception path of a second communication module are activated. If the first communication module is not in a transmission state, fewer than all of the filters disposed in the reception path of the second communication module are activated. A plurality of filters disposed in the reception path of the second communication module are activated partially or fully according to the transmission state of the first communication module.

Abstract: A MIMO antenna apparatus is provided. The MIMO antenna apparatus includes a plurality of antenna devices each having an operation line extending parallel by a predetermined extension length from one end portion and configured to operate in a resonant frequency band when power is supplied. The apparatus also includes a main board divided into a device area and aground area. The apparatus further includes a plurality of ground pads each extending from the ground plate to the device area in the main board and configured to connect the one end portion of each of the antenna devices to the ground plate. The apparatus also includes a plurality of feeding pads mounted adjacent to the ground pad in the device area and configured to connect each of the antenna devices to the main board and to provide power to each of the antenna devices.

Abstract: Disclosed are an apparatus and a method for preventing the degradation of RF performance due to a change in impedance of an antenna in a mobile communication terminal. The mobile communication terminal includes a plurality of impedance matching circuits and a controller of the mobile communication terminal is adapted to measure the reflection voltage of the antenna, select one impedance matching circuit corresponding to the measured reflection voltage, and connected with the antenna through the selected impedance matching circuit. As a result, when the impedance value of the antenna is changed, it is possible to prevent the degradation of performance of the RF module of the mobile communication terminal by using an impedance matching circuit, which can optimize the reflection loss caused by the reflection voltage of the antenna according to a change in impedance value.

Abstract: A method and a circuit for controlling a reception path of a multi-standby terminal are provided. If a first communication module is in a transmission state, all filters disposed in a reception path of a second communication module are activated. If the first communication module is not in a transmission state, fewer than all of the filters disposed in the reception path of the second communication module are activated. A plurality of filters disposed in the reception path of the second communication module are activated partially or fully according to the transmission state of the first communication module.

Abstract: Disclosed are an apparatus and a method for preventing the degradation of RF performance due to a change in impedance of an antenna in a mobile communication terminal. The mobile communication terminal includes a plurality of impedance matching circuits and a controller of the mobile communication terminal is adapted to measure the reflection voltage of the antenna, select one impedance matching circuit corresponding to the measured reflection voltage, and connected with the antenna through the selected impedance matching circuit As a result, when the impedance value of the antenna is changed, it is possible to prevent the degradation of performance of the RF module of the mobile communication terminal by using an impedance matching circuit, which can optimize the reflection loss caused by the reflection voltage of the antenna according to a change in impedance value.