公开(公告)号：US20040161121A1

公开(公告)日：2004-08-19

申请号：US10757994

申请日：2004-01-16

Applicant: Samsung Electronics Co., Ltd

Inventor： Changkyu Chol ,  Jaywoo Kim ,  Donggeon Kong

IPC: H04R003/00 ,  G10L021/02

CPC classification number: G10L21/0208 ,  G10L2021/02166 ,  H04R3/005

Abstract: An adaptive beamforming apparatus and method includes a fixed beamformer that compensates for time delays of M noise-containing speech signals input via a microphone array having M microphones (M is an integer greater than or equal to 2), and generates a sum signal of the M compensated noise-containing speech signals; and a multi-channel signal separator that extracts pure noise components from the M compensated noise-containing speech signals using M adaptive blocking filters that are connected to M adaptive canceling filters in a feedback structure and extracts pure speech components from the added signal using the M adaptive canceling filters that are connected to the M adaptive blocking filters in the feedback structure.

Abstract translation: 自适应波束形成装置和方法包括：固定波束形成器，其补偿经由具有M个麦克风的麦克风阵列输入的含M噪声的语音信号的时间延迟（M是大于或等于2的整数），并产生 M补偿含噪声语音信号; 以及多通道信号分离器，其使用M个自适应阻塞滤波器从M个经补偿的包含噪声的语音信号中提取纯噪声分量，该自适应阻塞滤波器以反馈结构连接到M个自适应消除滤波器，并且使用M 在反馈结构中连接到M个自适应阻塞滤波器的自适应抵消滤波器。

公开(公告)号：US20040175006A1

公开(公告)日：2004-09-09

申请号：US10793270

申请日：2004-03-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaywoo Kim ,  Dong-geon Kong ,  Chang-kyu Choi

IPC: H04R003/00

CPC classification number: H04R1/406 ,  H04R3/005 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2430/23 ,  H04R2430/25

Abstract: A microphone array, beam forming method and apparatus using the microphone array, and a method and apparatus for estimating an acoustic source direction using the microphone array are provided. The apparatus for forming constant directivity beams comprising: a microphone array, which is comprised of first through n-th microphone sub-arrays, wherein each of the microphone sub-arrays comprises: a first microphone placed at a predetermined location on a flat plate, which commonly belongs to each of the microphone sub-arrays; and second and third microphones placed at locations perpendicularly spaced by a predetermined segment from a straight line connecting the first microphone and the center of the flat plate, the predetermined segment being determined depending on a target frequency allotted to reach of the microphone sub-arrays, a beam formation unit receiving voice signals output from the first through n-th microphone sub-arrays and generating a beam for each of the first through n-th microphone sub-arrays; a filtering unit filtering the beams output from the beam formation unit; and an adding unit adding the filtered signals output from the filtering unit.

Abstract translation: 麦克风阵列，波束形成方法和使用麦克风阵列的装置，以及用于使用麦克风阵列来估计声源方向的方法和装置。 用于形成恒定方向性光束的装置包括：由第一至第n麦克风子阵列组成的麦克风阵列，其中每个麦克风子阵列包括：放置在平板上的预定位置的第一麦克风， 其通常属于每个麦克风子阵列; 以及第二和第三麦克风放置在与连接第一麦克风和平板的中心的直线与预定片段垂直间隔的位置处，该预定片段根据分配给麦克风子阵列的目标频率来确定， 波束形成单元接收从第一至第N麦克风子阵列输出的声音信号，并为第一至第N麦克风子阵列中的每一个生成波束; 滤波单元，滤波从光束形成单元输出的光束; 以及添加单元，将从滤波单元输出的滤波信号相加。