公开(公告)号：KR100960287B1

公开(公告)日：2010-06-07

申请号：KR1020070137500

申请日：2007-12-26

Applicant: 재단법인서울대학교산학협력재단

Inventor： 이종찬 ,  차상호 ,  김기현 ,  이원기

IPC: B22F9/24 ,  B22F9/18

Abstract: 본 발명은 금 마이크로 입자의 제조 방법에 관한 것으로, 본 발명에 따르면 금 전구체와 폴리옥시에틸렌계 고분자의 혼합물에 할로겐 이온을 첨가한 후 광화학적 방법으로 금 전구체를 환원시킴으로써 마이크로 크기의 금 입자를 균일하게 제조할 수 있다.

公开(公告)号：KR1020090069731A

公开(公告)日：2009-07-01

申请号：KR1020070137500

申请日：2007-12-26

Applicant: 재단법인서울대학교산학협력재단

Inventor： 이종찬 ,  차상호 ,  김기현 ,  이원기

IPC: B22F9/24 ,  B22F9/18

Abstract: A method for photochemically preparing gold microparticles using halide ions is provided to manufacture gold microparticles uniformly through simple processes by using a photochemical method. A method for photochemically preparing gold microparticles using halide ions comprises: a step of mixing gold precursor and polyoxyethylene series polymer with the organic solvent; a step of adding the halogen ion in the solution formed in the said step; a step of removing solvent from the solution in which the halogen ion is added; and a step of forming the gold microparticles by optical-chemically processing mixture in which solvent is removed and reducing the gold precursor. The photochemical process is performed by applying the light having the wave length of 200~800nm.

Abstract translation: 提供使用卤离子光学制备金微粒的方法，通过使用光化学方法通过简单的方法均匀地制造金微粒。 使用卤离子光学制备金微粒的方法包括：将金前体和聚氧乙烯系聚合物与有机溶剂混合的步骤; 在所述步骤中形成的溶液中加入卤素离子的步骤; 从其中加入卤素离子的溶液中除去溶剂的步骤; 以及通过光学化学处理混合物形成金微粒的步骤，其中除去溶剂并还原金前体。 通过应用波长为200〜800nm的光进行光化学处理。

公开(公告)号：KR1020090013621A

公开(公告)日：2009-02-05

申请号：KR1020070077894

申请日：2007-08-02

Applicant: 재단법인서울대학교산학협력재단 ,  주식회사 씨에스

Inventor： 김남수 ,  윤환식 ,  성준식 ,  김기현

IPC: H04R3/00

CPC classification number: G10K11/178 ,  G10K2210/3012

Abstract: A space noise reducing system is provided to reduce noise at a virtual error spot efficiently by using virtual error microphone signals presumed by linear transformation. A reference microphone(30) is installed in order to measure external noise. A noise cancellation speaker(10) generates noise control sound. An error microphone(20) measures error from a noise source and an output of noise cancellation output unit. A controller(60) produces an adaptive filter with the multi-channel FxLMS algorithm on the basis of a reference noise signal and an error noise signal. The adaptive filter makes noise cancellation possible. The controller applies the virtual noise control signal presumed on the basis of the error noise signal to the adaptive filter. Therefore, control signals having the minimum noise are generated in the intended virtual position. The control signals are outputted with the noise cancellation speaker.

Abstract translation: 提供了一种空间噪声降低系统，通过使用由线性变换推定的虚拟误差麦克风信号有效地降低虚拟误差点处的噪声。 安装参考麦克风（30）以测量外部噪声。 噪声消除扬声器（10）产生噪声控制声音。 误差麦克风（20）测量来自噪声源和噪声消除输出单元的输出的误差。 控制器（60）基于参考噪声信号和误差噪声信号产生具有多通道FxLMS算法的自适应滤波器。 自适应滤波器可以实现噪声消除。 控制器将基于误差噪声信号推定的虚拟噪声控制信号应用于自适应滤波器。 因此，在预期的虚拟位置中产生具有最小噪声的控制信号。 控制信号与噪声消除扬声器一起输出。