Abstract: Disclosed are an underwater optical communication aiming method and apparatus. The underwater optical communication aiming apparatus may include an optical communication module configured to transmit and receive laser beams and a plurality of acoustic modules spaced apart from one another at given intervals, disposed around the optical communication module, and configured to find a direction or relative distance of a counterpart light source under water. A direction of the optical communication module may be aimed at a counterpart light source found through the acoustic module in order to communicate with the counterpart light source by using the optical communication module.

Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.

Abstract: A multilayer electronic component includes a body including a plurality of dielectric layers and internal electrodes, and an external electrode disposed on the body and connected to the internal electrodes. The body includes an active portion including the plurality of internal electrodes to form capacitance, and cover portions disposed on the active portion, and the cover portions include an outer cover portion including a carbon compound and an inner cover portion disposed between the active portion and the outer cover portion. An average carbon content (Cc2) of the outer cover portion compared to an average carbon content (Cc1) of the inner cover portion satisfies 100?Cc2/Cc1?10,000.

Abstract: Disclosed are an underwater optical communication aiming method and apparatus. The underwater optical communication aiming apparatus may include an optical communication module configured to transmit and receive laser beams and a plurality of acoustic modules spaced apart from one another at given intervals, disposed around the optical communication module, and configured to find a direction or relative distance of a counterpart light source under water. A direction of the optical communication module may be aimed at a counterpart light source found through the acoustic module in order to communicate with the counterpart light source by using the optical communication module.

Abstract: It is disclosed optical communication system and method capable or monitoring underwater information in real time. An optical communication system may be configured to include a first optical communication module configured with a photographing unit which is installed on objects moving underwater and photographs underwater pictures or images and a first optical transceiver module for transmitting and receiving image information for the underwater pictures or images photographed in the photographing unit; a second optical communication module for receiving the image information from the first optical transceiver module of the first optical communication module and transmitting the image information to an external device or a displaying unit.

Abstract: It is disclosed optical communication system and method capable or monitoring underwater information in real time. An optical communication system may be configured to include a first optical communication module configured with a photographing unit which is installed on objects moving underwater and photographs underwater pictures or images and a first optical transceiver module for transmitting and receiving image information for the underwater pictures or images photographed in the photographing unit; a second optical communication module for receiving the image information from the first optical transceiver module of the first optical communication module and transmitting the image information to an external device or a displaying unit.