Abstract: A planar magnet speaker with excellent sound reproduction in a low frequency range and capable of providing a plurality of input controls includes a first magnet member, a second magnet member, a membrane including at least one wire formed between the first magnet member and the second magnet member, and a support frame.

Abstract: An audio signal processing method and an audio signal processing apparatus for synchronizing audio based on synchronization error between audio signals.

Abstract: Provided is a method of processing an audio signal, the method performed by a device and including dividing the audio signal into a main signal and a background signal; obtaining position information about a main speaker and an auxiliary speaker; mixing the main signal and the background signal, based on the position information; and outputting the mixed main signal and the mixed background signal to the main speaker and the auxiliary speaker, respectively.

Abstract: An apparatus and process are provided for electricity production and high-efficiency trapping of carbon dioxide, using carbon dioxide within combustion exhaust gas and converging technologies associated with a carbon dioxide absorption tower and a generating device using ions which uses a difference in concentration of salinity between seawater and freshwater. It is expected that enhanced electrical energy production efficiency, an effect of reducing costs for the operation of a carbon dioxide trapping process, and electricity production from carbon dioxide, which is a greenhouse gas, can be simultaneously achieved by increasing the difference in concentration using an absorbent for absorbing carbon dioxide.

Abstract: Disclosed is a direct synthesis method of nanostructured catalyst particles on surfaces of various supports.

Abstract: A reverse electrodialysis device, including an anode, a cathode, one or more single cells spaced apart from each other between the anode and the cathode, each single cell including a cation exchange membrane and an anion exchange membrane, and a shielding membrane disposed to define spaces between the anode and the single cell and/or between the cathode and the single cell. The cation exchange membrane and the shielding membrane include a porous polymer substrate and a polymer electrolyte incorporated into pores in the substrate.

Abstract: A method includes: supplying sources or nanoparticles of any one or two or more combinations selected from a group which consists of a carbon source, a doping source, a doped element containing carbon source, and a waste plastic source into a high-temperature and high-pressure closed autoclave, completely closing the high-temperature and high-pressure closed autoclave, and forming a nanoparticle-carbon core-shell structure by a single process by coating a carbon layer on the surface of the nanoparticles or forming a core-shell structure of nanoparticle-doped carbon by the single process by coating a carbon layer doped with the doped element on the surface of the nanoparticles under pressure self-generated in the autoclave and a reaction temperature in the range of 500 to 850° C. by heating the autoclave.

Abstract: A carbon dioxide capturing apparatus and process uses a self-generating power means that uses carbon dioxide in combustion exhaust gas through the convergence of a carbon dioxide absorption tower. The capturing apparatus and process also relies on ionic generator associated technology using a concentration difference between seawater and freshwater. The capturing apparatus and process result in increased production efficiency for electric energy and reduced costs for a carbon dioxide capturing process by increasing a concentration difference using an absorbent liquid for absorbing carbon dioxide and, at the same time, electricity is obtained through carbon dioxide which is a greenhouse gas.

Abstract: An audio signal processing method and an audio signal processing apparatus for synchronizing audio based on synchronization error between audio signals.

Abstract: An audio outputting apparatus, controlling method thereof, and audio outputting system are provided. The controlling method of an audio outputting apparatus that outputs multi channel audio with at least one other audio outputting apparatus includes: receiving profile information representing audio characteristics from the at least one other audio outputting apparatus; determining whether or not the received profile information is the same as pre-stored profile information of the audio outputting apparatus; and in response to the received profile information being different from the pre-stored profile information, re-configuring the pre-stored profile information based on the received profile information according to pre-set conditions.

Abstract: A method performed at the electronic device for identifying an electronic device and peripheral apparatuses is provided. The method acquires image data regarding emitters of the peripheral apparatuses, determines emitting colors emitted from the emitters based on the acquired image data, and acquires identification information of the peripheral apparatuses mapped with the emitting colors.

Abstract: Provided are an audio signal processing apparatus and method. The audio signal processing apparatus includes: a sensing unit for sensing an impedance value of a headphone and adjusting a gain to be applied to an audio signal based on the sensed impedance value; and an amplifier for generating an output audio signal by receiving at least one bias voltage corresponding to the adjusted gain and amplifying the input audio signal according to the adjusted gain. The audio signal processing apparatus is capable of appropriately adjusting the magnitude of an acoustic signal output from a headphone, according to the product specifications of the headphone.

Abstract: An audio outputting apparatus, controlling method thereof, and audio outputting system are provided. The controlling method of an audio outputting apparatus that outputs multi channel audio with at least one other audio outputting apparatus includes: receiving profile information representing audio characteristics from the at least one other audio outputting apparatus; determining whether or not the received profile information is the same as pre-stored profile information of the audio outputting apparatus; and in response to the received profile information being different from the pre-stored profile information, re-configuring the pre-stored profile information based on the received profile information according to pre-set conditions.

Abstract: An expanding vascular stent is disclosed that is inserted into a blood vessel in the human body and expands the blood vessel. The stent is configured in such a way that adjacent rows, each of which is comprised of a plurality of identical cells, are symmetrically arranged, in an out of phase manner. When the stent is expanded in the radial direction, the adjacent rows are expanded in opposite directions, maintaining their linearly symmetrical state. Therefore, the reduction in the length of the stent can be minimized. Since the stent has also a great degree of flexibility, when it is inserted into the blood vessel, it can minimize the damage to the blood vessel wall.

Abstract: The present invention relates to a cartridge of electric cigarette for preventing leakage. The cartridge may comprise a storing container 11 to store liquid therein; an extending tube 12 to have a guide tube 121 installed within the storing container 11 and extending in a hollow cylindrical shape, a lower fixing plate 122 coupled to the lower part of the guide tube 121 and secured to the lower part of the storing container 11 and a fixing gap 123 formed at the upper part of the guide tube 121; a guide lid 16 coupled to the upper part of the extending tube 12 and introducing evaporated component; an evaporating unit 17 fixed at the fixing gap 123; and a mouth piece 13 communicating with the guide lid 16 and coupled to the upper part of the storing container 11.

Abstract: A method of controlling power supply voltage of an audio amplifier delays an input audio signal; estimates, with a digital signal processor, an audio output level of the delayed input audio signal based on correlations between the delayed input audio signal level and audio level change factors; sets a value of power supply voltage supplied to a power switching circuit unit in correspondence with the estimated audio output level prior to outputting the delayed input audio signal on which the estimated audio output level is based; and amplifies the delayed audio input signal to provide an audio output signal by variably controlling the power supply voltage supplied to the power switching circuit unit according to the set value of power supply voltage.

Abstract: Provided are an audio signal processing apparatus and method. The audio signal processing apparatus includes: a sensing unit for sensing an impedance value of a headphone and adjusting a gain to be applied to an audio signal based on the sensed impedance value; and an amplifier for generating an output audio signal by receiving at least one bias voltage corresponding to the adjusted gain and amplifying the input audio signal according to the adjusted gain. The audio signal processing apparatus is capable of appropriately adjusting the magnitude of an acoustic signal output from a headphone, according to the product specifications of the headphone.

Abstract: Methods of fabricating an organic light emitting device using plasma and/or thermal decomposition are provided. An insulating layer is formed by reacting first and second radicals. The first radical is formed by passing a first gas through a plasma generating region and a heating body, and the second radical is formed by passing a second gas through the heating body. The methods improve the characteristics of the resulting insulating layer and increase the use efficiency of the source gas by substantially decomposing the source gas. The insulating layer can be a passivation layer formed on an organic light emitting device. The methods use plasma apparatuses such as an inductively coupled plasma chemical vapor deposition (ICP-CVD) apparatuses or plasma enhanced chemical vapor deposition (PECVD) apparatuses.

Abstract: The present invention relates to a stent which is inserted into a stenosed bile duct to enlarge the bile duct. The stent includes a plurality of hooks which extend outwards from the main body of the stent at a predetermined angle and are spaced apart from each other. Therefore, when the stent is inserted into the bile duct, the hooks that extend outwards from the main body at a predetermined angle are hooked to the inner surface of the bile duct, thus preventing the stent from slipping relative to the bile duct.

Abstract: An audio signal output apparatus including an audio signal input unit which receives an audio signal; a digital signal processor (DSP) which estimates an output power corresponding to the received audio signal, and adjusts at least one of a gain value to be applied to the received audio signal and the output power of the received audio signal according to a period for which the estimated output power exceeds a rated maximum output power and a difference between the estimated output power and the rated maximum output power; and an audio signal output unit which generates, amplifies, and outputs a pulse width modulation (PWM) signal corresponding to the received audio signal.