公开(公告)号：US20110181452A1

公开(公告)日：2011-07-28

申请号：US12695171

申请日：2010-01-28

Applicant: Mark RAIFEL ,  Yaakov Chen

Inventor： Mark RAIFEL ,  Yaakov Chen

IPC: H03M1/00

CPC classification number: H04R3/02 ,  H04M1/6041 ,  H04R2400/01 ,  H04R2499/11

Abstract: The method and system use a speaker available in an audio end device when not in use as a microphone. The speaker is utilized for enhancing the sound quality received by the person or device at the near end, i.e., the user of the device, or the speaker at the far end, i.e., the speaker with whom the near-end speaker is communicating. Exemplary applications are shown for such utilization, including single or dual microphone near-end automatic listening enhancement, acoustic echo cancellation or suppression with or without double talk detection, and microphone array noise reduction.

Abstract translation: 该方法和系统在不用作麦克风时使用音频终端设备中可用的扬声器。 扬声器用于增强近端的人或设备，即设备的用户或远端的扬声器，即近端扬声器正在通信的扬声器所接收的声音质量。 示出了用于这种利用的示例性应用，包括单麦克风或双麦克风近端自动收听增强，具有或不具有双方通话检测的声学回声消除或抑制以及麦克风阵列降噪。

公开(公告)号：US20130308771A1

公开(公告)日：2013-11-21

申请号：US13982276

申请日：2011-02-03

Applicant: Mark Raifel ,  Yaakov Chen ,  Amos Schreibman ,  Eli Fogel

Inventor： Mark Raifel ,  Yaakov Chen ,  Amos Schreibman ,  Eli Fogel

IPC: H04M3/00

CPC classification number: H04M3/002 ,  H03H21/0067 ,  H03H2021/0061 ,  H03H2021/0076 ,  H04B3/23

Abstract: A method and apparatus for filtering a reference signal by a series of taps having coefficients, comprising dividing the taps into at least one layer of a plurality of groups, each group comprising a plurality of taps, as a first layer, forming a plurality of coefficients arranged in at least one group, as at least one subsequent layer and forwarding multiply-accumulate results of each group in each layer sequentially to the at least one group in the at least one subsequent layer to generate an output signal, and adjusting the coefficients based on an error signal formed as a difference between the output signal and a received input signal related to the reference signal and an interim error signal as a difference between the input signal and a summation of the multiply-accumulate results of at least one layer.

Abstract translation: 一种用于通过具有系数的一系列抽头对参考信号进行过滤的方法和装置，包括将抽头分成至少一组多个组，每个组包括多个抽头，作为第一层，形成多个系数 布置在至少一个组中，作为至少一个后续层，并且将每个层中的每个组的每个组的乘法累积结果顺序地传送到所述至少一个后续层中的所述至少一个组，以生成输出信号，并且基于 在作为输入信号和与参考信号相关的接收输入信号和中间误差信号之间的差异形成的误差信号作为输入信号与至少一层的乘法累积结果的总和之间的差。

公开(公告)号：US20100260273A1

公开(公告)日：2010-10-14

申请号：US12386057

申请日：2009-04-13

Applicant: Mark Raifel ,  Yaakov Chen ,  Eli Fogel

Inventor： Mark Raifel ,  Yaakov Chen ,  Eli Fogel

IPC: H04B14/04 ,  G10L15/00

CPC classification number: G10L19/012

Abstract: A method of maintaining signal convergence of a transmitter and a receiver of an adaptive differential pulse code modulated (ADPCM) communication system during discontinuous transmission, by generating synchronized comfort noise frame in the transmitter and in the receiver during quiet periods and mutually updating the receiver's decoder and encoder on their states.

Abstract translation: 一种在不连续传输期间通过在静音期间通过在发射机和接收机中产生同步的舒适噪声帧来维持在自适应差分脉冲编码调制（ADPCM）通信系统中的发射机和接收机的信号收敛的方法，并且在接收机的解码器 和编码器在他们的状态。