公开(公告)号：WO2014143492A1

公开(公告)日：2014-09-18

申请号：PCT/US2014/016356

申请日：2014-02-14

Applicant: MOTOROLA MOBILITY LLC

Inventor： GARCIA, Juan C. ,  CLARK, Joel A. ,  RAMABADRAN, Tenkasi V.

IPC: G10L21/02 ,  G10L21/0208 ,  G10L25/48

CPC classification number: H04M3/002 ,  G10L21/02 ,  G10L21/0208 ,  G10L25/48 ,  G10L2021/02082 ,  H04B3/234 ,  H04M9/082

Abstract: An apparatus (300) includes an echo canceller (13) having an audio signal input and an audio signal output and dynamic pre-conditioning logic (200). The dynamic pre-conditioning logic (200) is operatively coupled to the echo canceller (130) audio signal output as a feedback signal (107) and has a dynamic pre-conditioning logic (200) output operatively coupled to the echo canceller (130) audio signal input. The dynamic pre-conditioning logic (200) is also operative to receive an audio signal input from at least one microphone (210). The dynamic pre-conditioning logic (200) is operative to analyze the feedback signal (107) to obtain at least one characteristic, and pre-condition the audio signal input, based on the at least one characteristic of the feedback signal, and provide a pre-conditioned audio signal at the echo canceller (130) audio signal input. The echo canceller (130) audio signal output is then provided to a noise suppressor (140) for the send path of a full duplex communication channel.

Abstract translation: 装置（300）包括具有音频信号输入和音频信号输出和动态预处理逻辑（200）的回波消除器（13）。 动态预处理逻辑（200）可操作地耦合到作为反馈信号（107）的回声消除器（130）音频信号输出，并且具有可操作地耦合到回声消除器（130）的动态预处理逻辑（200）输出， 音频信号输入。 动态预处理逻辑（200）还可操作以接收从至少一个麦克风（210）输入的音频信号。 动态预处理逻辑（200）用于分析反馈信号（107）以获得至少一个特性，并且基于反馈信号的至少一个特性对音频信号输入进行预处理，并提供一个 在回声消除器（130）音频信号输入处的预处理音频信号。 然后，将回声消除器（130）音频信号输出提供给用于全双工通信信道的发送路径的噪声抑制器（140）。

公开(公告)号：WO2015017686A1

公开(公告)日：2015-02-05

申请号：PCT/US2014/049212

申请日：2014-07-31

Applicant: MOTOROLA MOBILITY LLC

Inventor： CLARK, Joel A. ,  RAMABADRAN, Tenkasi V. ,  JASIUK, Mark A.

IPC: G10L15/22 ,  G10L25/78 ,  G10L15/20

CPC classification number: G10L15/063 ,  G10L15/20 ,  G10L15/22 ,  G10L2025/783

Abstract: An electronic device includes a microphone (108) that receives an audio signal, and a processor that is electrically coupled to the microphone (108). The processor (204, 300) detects a trigger phrase in the received audio signal and measure characteristics of the detected trigger phrase. Based on the measured characteristics of the detected trigger phrase, the processor (204,300) determines whether the detected trigger phrase is valid.

Abstract translation: 电子设备包括接收音频信号的麦克风（108）和电耦合到麦克风（108）的处理器。 处理器（204,300）检测接收到的音频信号中的触发短语并测量检测到的触发短语的特征。 基于检测到的触发短语的测量特性，处理器（204,300）确定检测到的触发短语是否有效。

公开(公告)号：WO2014143448A1

公开(公告)日：2014-09-18

申请号：PCT/US2014/014759

申请日：2014-02-05

Applicant: MOTOROLA MOBILITY LLC

Inventor： ZUREK, Robert A. ,  CLARK, Joel A. ,  DWYER, Joseph C. ,  GARCIA, Juan C. ,  IVANOV, Plamen A. ,  OLIVEIRA, Rivanaldo S. ,  SINGARAJU, Snehitha ,  WU, Jincheng

IPC: G10L25/48 ,  G10L21/02 ,  G10L15/22 ,  G10L15/06 ,  G10L15/20 ,  G10L15/065 ,  G10L21/0208 ,  G10L21/0316 ,  G10L21/0216

CPC classification number: H04M1/6041 ,  G01S15/08 ,  G10L15/06 ,  G10L15/063 ,  G10L15/065 ,  G10L15/20 ,  G10L15/22 ,  G10L21/02 ,  G10L21/0316 ,  G10L25/48 ,  G10L2015/228 ,  G10L2021/02082 ,  G10L2021/02161 ,  H03G3/32 ,  H04M1/271

Abstract: A method and apparatus for adapting acoustic processing in a communication device (102), and capturing (302) at least one acoustic signal using acoustic hardware (218, 224) of the communication device (102), characterizing (304) an acoustic environment external to the communication device (102) using the at least one captured acoustic signal, adapting (306) acoustic processing within the communication device (102) based on the characterized acoustic environment.

Abstract translation: 一种用于在通信设备（102）中适配声学处理的方法和装置，以及使用所述通信设备（102）的声学硬件（218,224）捕获（302）至少一个声学信号，表征（304）声学环境外部 使用所述至少一个捕获的声音信号将所述通信设备（102）发送到所述通信设备（102），基于所述特征的声学环境来适配（306）所述通信设备（102）内的声学处理。

公开(公告)号：WO2014163780A3

公开(公告)日：2014-10-09

申请号：PCT/US2014/016364

申请日：2014-02-14

Applicant: MOTOROLA MOBILITY LLC

Inventor： IVANOV, Plamen A. ,  BASTYR, Kevin J. ,  CLARK, Joel A. ,  OLIVEIRA, Rivanaldo S. ,  SINGARAJU, Snehitha ,  WU, Jincheng

IPC: H04R3/00 ,  H04R29/00 ,  H04M1/03 ,  G01N29/44

Abstract: An apparatus (100) includes a group of microphones (110) and a surface compensator (200) that is operatively coupled to switch logic (120) and to a signal conditioner (160) that provides a control channel (125) to voice recognition logic (101). The surface compensator (200) may detect surfaces in proximity to the apparatus (100) as well as the surface's acoustic reflectivity or acoustic absorptivity and may accordingly configure the group of microphones (110) including selecting appropriate signal conditioning and beamforming based on the surface acoustic reflectivity or acoustic absorptivity and the orientation of the apparatus (100). Voice recognition (101) performance is thus improved when microphones are impeded or occluded by proximate surfaces. A group of sensors of the apparatus (100) is used by the surface compensator (200) to detect surfaces and surface type, and to determine apparatus (100) orientation and motion.

公开(公告)号：WO2014182453A2

公开(公告)日：2014-11-13

申请号：PCT/US2014/035117

申请日：2014-04-23

Applicant: MOTOROLA MOBILITY LLC

Inventor： MELONEY, John R ,  CLARK, Joel A. ,  DWYER, Joseph C. ,  SCHUSTER, Adrian ,  SINGARAJU, Snehitha ,  ZUREK, Robert A.

IPC: G10L15/06

CPC classification number: G10L15/20 ,  G10L15/063

Abstract: An electronic device (102) digitally combines a single voice input with each of a series of noise samples. Each noise sample is taken from a different audio environment (e.g., street noise, babble, interior car noise). The voice input / noise sample combinations are used to train a voice recognition model database (308) without the user (104) having to repeat the voice input in each of the different environments. In one variation, the electronic device (102) transmits the user's voice input to a server (301) that maintains and trains the voice recognition model database (308).

Abstract translation: 电子设备（102）将单个语音输入与一系列噪声样本中的每一个进行数字组合。 每个噪声样本取自不同的音频环境（例如，街道噪音，嘈杂声，车内噪音）。 语音输入/噪声样本组合被用于训练语音识别模型数据库（308），而用户（104）不必在每个不同的环境中重复语音输入。 在一个变型中，电子设备（102）将用户的语音输入发送到维护和训练语音识别模型数据库（308）的服务器（301）。

公开(公告)号：WO2014143438A1

公开(公告)日：2014-09-18

申请号：PCT/US2014/014371

申请日：2014-02-03

Applicant: MOTOROLA MOBILITY LLC

Inventor： IVANOV, Plamen A. ,  BASTRY, Kevin J. ,  CLARK, Joel A. ,  JASIUK, Mark A. ,  RAMABADRAN, Tenkasi V. ,  WU, Jincheng,

IPC: G10L15/20 ,  G10L21/02

CPC classification number: G10L15/20 ,  G10L15/28 ,  G10L21/0216 ,  G10L21/0364 ,  G10L25/21 ,  G10L2021/02161

Abstract: A disclosed method includes monitoring an audio signal energy level while having a plurality of signal processing components deactivated and activating at least one signal processing component in response to a detected change in the audio signal energy level. The method may include activating and running a voice activity detector (150) on the audio signal in response to the detected change where the voice activity detector (150) is the at least one signal processing component. The method may further include activating and running the noise suppressor (190) only if a noise estimator (160) determines that noise suppression is required. The method may activate and runs a noise type classifier (170) to determine the noise type based on information received from the noise estimator (160) and may select a noise suppressor algorithm, from a group of available noise suppressor algorithms (109), where the selected noise suppressor algorithm is the most power consumption efficient.

Abstract translation: 所公开的方法包括：监测音频信号能级，同时响应于检测到的音频信号能量级的改变而使多个信号处理组件取消激活并激活至少一个信号处理组件。 该方法可以包括响应于检测到的改变而激活和运行音频信号上的语音活动检测器（150），其中语音活动检测器（150）是至少一个信号处理组件。 该方法还可以包括仅当噪声估计器（160）确定需要噪声抑制时激活和运行噪声抑制器（190）。 该方法可以激活和运行噪声类型分类器（170）以基于从噪声估计器（160）接收的信息来确定噪声类型，并且可以从一组可用的噪声抑制算法（109）中选择噪声抑制算法，其中 所选择的噪声抑制算法是功耗最高的。