摘要:
A microphone signal compensation apparatus includes a plurality of audio input units to respectively receive a target signal, each audio input unit of the plurality of audio input units including a microphone; a constant filter unit to selectively apply a constant filtering calibration scheme to signals output by the plurality of audio input units to compensate for a difference in at least one characteristic among the audio input units, the constant filtering calibration scheme being estimated from an average value of a ratio of a desired signal to a reference signal among the signals output by the plurality of audio input units; and a noise remover to remove noise from the signals processed by the constant filter unit, and to separate the target signal from the signals from which the noise has been removed.
摘要:
The present invention relates to a method of manufacturing titania nanoparticles, and specifically to a method of manufacturing titania nanoparticles wherein the particle size is uniform, it is possible to manufacture monodisperse particles without aggregation among particles, a uniform coating can be applied, that is suitable to large-scale production, and that can obtain high-resolution images by maintaining the toner electric charge and electric charge distribution; and the developer included in said titania nanoparticles.
摘要:
An apparatus for estimating a Direction of Arrival (DOA) of a wideband includes a first signal receiving unit and a second signal receiving unit to receive a wideband signal while satisfying d≦Mc/2fs wherein ‘d’ denotes a distance the first signal receiving unit and the second signal receiving unit are spaced apart from each other, ‘c’ denotes the speed of sound, ‘M’ denotes a number of wideband frequencies being a number of fast Fourier transformation (FFT) points of a wideband signal, and ‘fs’ denotes a sampling frequency, and a DOA calculating unit to calculate a DOA (θ) using a normalized frequency ( f) which is obtained by performing an FFT on the respective wideband signals transmitted from the first signal receiving unit and the second signal receiving unit, and using the distance d.
摘要翻译:用于估计宽带的到达方向(DOA)的装置包括:第一信号接收单元和第二信号接收单元,用于在满足d&nlE的同时接收宽带信号; Mc / 2fs其中'd'表示第一信号接收单元 并且第二信号接收单元彼此间隔开,'c'表示声速,'M'表示宽带频率的数量,是宽带信号的快速傅里叶变换(FFT)点的数目,'fs “表示采样频率,DOA计算单元使用通过对从第一信号接收单元发送的各个宽带信号执行FFT并且接收到的第二信号而获得的归一化频率(f)来计算DOA(& 单位,并使用距离d。
摘要:
The present invention provides a composition for crown material including resin and a fine spherized composite glass powder. The fine composite glass powder of the present invention for such a configuration has superior qualities with regard to both sintering and optical characteristics, and can be used as a filler for crown material.
摘要:
A personal sound zone creating apparatus includes a broadside array adapted to generate a sound beam orthogonal to an arrangement of an array constituted by at least three transducers in a personal audio device. Therefore, the personal sound zone creating apparatus controls rear radiation by including an end-fire array increased in directivity in a horizontal direction.
摘要:
The present invention provides a composition for crown material including resin and a fine spherized composite glass powder. The fine composite glass powder of the present invention for such a configuration has superior qualities with regard to both sintering and optical characteristics, and can be used as a filler for crown material.
摘要:
A method of recognizing speech is provided. The method includes the operations of (a) dividing first speech that is input to a speech recognizing apparatus into frames; (b) converting the frames of the first speech into frames of second speech by applying conversion rules to the divided frames, respectively; and (c) recognizing, by the speech recognizing apparatus, the frames of the second speech, wherein (b) comprises converting the frames of the first speech into the frames of the second speech by reflecting at least one frame from among the frames that are previously positioned with respect to a frame of the first speech.
摘要:
Disclosed herein is a fluorescent light source including an yttria layer. Specifically, the current invention provides a fluorescent light source having high quality and a long lifetime, which can prevent a decrease in initial luminance of a fluorescent light source, including a fluorescent lamp, and resist the radiation of ultraviolet light and the permeation of mercury, which are the causes of deterioration of the fluorescent light source, so as not to decrease the luminance in proportion to the lighting time of the fluorescent light source, thus assuring both initial luminance properties and luminance properties after use for a long period of time. Such a fluorescent light source includes glass, a fluorescent material layer, and an absorbing layer composed mainly of yttria particles formed between the glass and the fluorescent material layer or on the inner surface of the fluorescent material layer. In addition, an yttria coating composition used in the fluorescent light source and a method of fabricating the fluorescent light source using the composition are also provided.
摘要:
An apparatus for estimating a Direction of Arrival (DOA) of a wideband includes a first signal receiving unit and a second signal receiving unit to receive a wideband signal while satisfying d≦Mc/2fs, wherein ‘d’ denotes a distance the first signal receiving unit and the second signal receiving unit are spaced apart from each other, ‘c’ denotes the speed of sound, ‘M’ denotes a number of wideband frequencies being a number of fast Fourier transformation (FFT) points of a wideband signal, and ‘fs’ denotes a sampling frequency, and a DOA calculating unit to calculate a DOA (θ) using a normalized frequency ( f) which is obtained by performing an FFT on the respective wideband signals transmitted from the first signal receiving unit and the second signal receiving unit, and using the distance d.
摘要翻译:用于估计宽带的到达方向(DOA)的装置包括第一信号接收单元和第二信号接收单元,用于在满足d @ Mc / 2fs的同时接收宽带信号,其中“d”表示第一信号接收的距离 单元和第二信号接收单元彼此间隔开,'c'表示声速,'M'表示宽带频率的数量,是宽带信号的快速傅里叶变换(FFT)点的数量, fs'表示采样频率,DOA计算单元使用通过对从第一信号接收单元发送的各个宽带信号执行FFT并且接收到的第二信号而获得的归一化频率(f)来计算DOA(θ) 单位,并使用距离d。
摘要:
The present invention relates to a method of manufacturing titania nanoparticles, and specifically to a method of manufacturing titania nanoparticles wherein the particle size is uniform, it is possible to manufacture monodisperse particles without aggregation among particles, a uniform coating can be applied, that is suitable to large-scale production, and that can obtain high-resolution images by maintaining the toner electric charge and electric charge distribution; and the developer included in said titania nanoparticles.