Abstract: The present invention relates to a composition for forming a composite polymer film, a method for preparing the composition for forming a composite polymer film, a composite polymer film and a method for preparing the composite polymer film. The composition for forming a composite polymer film comprises: a fluorine-based polymer solution comprising a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the fluorine-based polymer solution. The method for preparing the composition for forming a composite polymer film comprises the steps of: preparing a fluorine-based polymer solution comprising a fluorine-based polymer; and dispersing polyvinylidene fluoride nanoparticles in the fluorine-based polymer solution. The composite polymer film comprises: a polymer matrix formed from a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the polymer matrix.

Abstract: Omnidirectional high resolution tracking and recording apparatus and method are disclosed. The high resolution tracking and recording apparatus comprises a pan/tilt/zoom camera executable rotation and zoom-in; assistant cameras configured to have fisheye lens; microphones performable beam steering; and a processor configured to control to search a location of an important object in a recorded image by analyzing an image taken by the pan/tilt/zoom camera and the assistant cameras and a sound source recorded by the microphones, rotate the pan/tilt/zoom camera to the searched location, perform zoom-in of the pan/tilt/zoom camera, and amplify a sound occurred in a direction of a sound source by searching the direction of the sound source through preset algorithm.

Abstract: Omnidirectional high resolution tracking and recording apparatus and method are disclosed. The high resolution tracking and recording apparatus comprises a pan/tilt/zoom camera executable rotation and zoom-in; assistant cameras configured to have fisheye lens; microphones performable beam steering; and a processor configured to control to search a location of an important object in a recorded image by analyzing an image taken by the pan/tilt/zoom camera and the assistant cameras and a sound source recorded by the microphones, rotate the pan/tilt/zoom camera to the searched location, perform zoom-in of the pan/tilt/zoom camera, and amplify a sound occurred in a direction of a sound source by searching the direction of the sound source through preset algorithm.

Abstract: A method of recognizing a speech and an electronic device thereof are provided. The method includes: segmenting a speech signal into a plurality of sections at preset time intervals; performing a phoneme recognition with respect to one of the plurality of sections of the speech signal by using a first acoustic model; extracting a candidate word of the one of the plurality of sections of the speech signal by using the phoneme recognition result; and performing a speech recognition with respect to the one the plurality of sections the speech signal by using the candidate word.

Abstract: An apparatus and method for localizing a sound source in a robot are provided. The apparatus includes a microphone unit implemented by one or more microphones, which picks up a sound from a three-dimensional space. The apparatus also includes a sound source localizer for determining a position of the sound source in accordance with Time-Difference of Arrivals (TDOAs) and a highest power of the sound picked up by the microphone unit. Thus, the robot can rapidly and accurately localize the sound source in the three-dimensional space with minimum dead space, using a minimum number of microphones.