公开(公告)号：US10856777B2

公开(公告)日：2020-12-08

申请号：US15541313

申请日：2016-06-23

Applicant: Goertek Inc.

Inventor： Bo Li ,  Na Li

IPC: A61B5/11 ,  G01C22/00 ,  A61B5/0205 ,  A61B5/00 ,  A61B5/024

Abstract: A method and device for identifying a human movement state that includes: determining according to acceleration signals that are collected by a three-axis acceleration sensor that a human is in a walking state, calculating a walking step number of the human, and calculating a walking step frequency according to the number; calculating a corresponding physical sign frequency during the walking process according to a physical sign signal that is collected; and comparing the walking step frequency and the physical sign frequency that are obtained by calculating respectively with a step frequency threshold and a physical sign frequency threshold, and if the walking step frequency is greater than the step frequency threshold, and the physical sign frequency is greater than the physical sign frequency threshold, determining that the human movement state is a running state, and recording the calculated walking step number to be a running step number.

公开(公告)号：US10432125B2

公开(公告)日：2019-10-01

申请号：US15762100

申请日：2017-09-05

Applicant: Goertek Inc.

Inventor： Yongqiang Feng ,  Lide Wu ,  Bo Li

IPC: H02P23/00 ,  G06F17/50 ,  H02P25/032 ,  G06F3/01

Abstract: A method and circuit for acquiring an output quantity of a linear resonance actuator are disclosed. The method comprises the steps of: establishing a circuit that simulates the linear resonance actuator by using passive electrical devices according to an electrical parameter and a kinematic parameter of the linear resonance actuator, the passive electrical devices comprise at least a resistor, a capacitor and an inductor; selecting a measuring point in the circuit according to an output quantity that the linear resonance actuator needs; and inputting a driving signal of an input source to an input end of the circuit, and collecting an electrical signal that is outputted at the measuring point to obtain the output quantity of the simulated linear resonance actuator. According to the technical solution of the application, a circuit module or system model that simulates the linear resonance actuator is established and used in the process of developing and debugging of projects, to replace the technical solutions that directly use physical actuators, thereby improving the efficiency and avoiding the relying on physical actuators.

公开(公告)号：US10375502B2

公开(公告)日：2019-08-06

申请号：US15718184

申请日：2017-09-28

Applicant: Goertek, Inc.

Inventor： Song Liu ,  Shasha Lou ,  Bo Li

IPC: H04S7/00 ,  H04N13/128 ,  H04R1/40 ,  H04N5/232 ,  H04R5/04 ,  G06T7/50 ,  H04N21/4223 ,  H04N21/439

Abstract: A method and a system for achieving a self-adaptive surround sound. The method comprises: recognizing specific positions of a room and a user in the room by using an object recognition technology, capturing focusing images of recognized objects by controlling a camera using a focusing control technology, and recording corresponding focusing parameters (S110); calculating position information of the room relative to the camera and position information of the user relative to the camera according to the images and the parameters (S120); calculating sound beams that can achieve the surround sound at the position of the user in said room according to aforesaid calculated position information of the room and the user (S130); obtaining parameters of a filter group according to the calculated sound beams, and adjusting the filter group of a loudspeaker array according to the parameters (S140); and playing an audio signal via the loudspeaker array after the audio signal is filtered by the filter group that has been adjusted according to the parameters to form surround sound at the position of the user in the room (S150).

公开(公告)号：US20180294757A1

公开(公告)日：2018-10-11

申请号：US15762100

申请日：2017-09-05

Applicant: Goertek Inc.

Inventor： Yongqiang Feng ,  Lide Wu ,  Bo Li

IPC: H02P23/00 ,  H02P25/032 ,  G06F3/01

CPC classification number: H02P23/0022 ,  G06F3/016 ,  G06F17/50 ,  H02P25/032

Abstract: A method and circuit for acquiring an output quantity of a linear resonance actuator are disclosed. The method comprises the steps of: establishing a circuit that simulates the linear resonance actuator by using passive electrical devices according to an electrical parameter and a kinematic parameter of the linear resonance actuator, the passive electrical devices comprise at least a resistor, a capacitor and an inductor; selecting a measuring point in the circuit according to an output quantity that the linear resonance actuator needs; and inputting a driving signal of an input source to an input end of the circuit, and collecting an electrical signal that is outputted at the measuring point to obtain the output quantity of the simulated linear resonance actuator. According to the technical solution of the application, a circuit module or system model that simulates the linear resonance actuator is established and used in the process of developing and debugging of projects, to replace the technical solutions that directly use physical actuators, thereby improving the efficiency and avoiding the relying on physical actuators.

公开(公告)号：US09807536B2

公开(公告)日：2017-10-31

申请号：US14896175

申请日：2014-06-27

Applicant: Goertek, Inc.

Inventor： Song Liu ,  Shasha Lou ,  Bo Li

IPC: H04S7/00 ,  H04R1/40 ,  H04N5/232 ,  H04N13/00 ,  H04R5/04 ,  G06T7/50 ,  H04N21/4223 ,  H04N21/439

CPC classification number: H04S7/303 ,  G06T7/50 ,  G06T2207/10028 ,  G06T2207/10148 ,  G06T2207/30201 ,  H04N5/23212 ,  H04N13/128 ,  H04N21/4223 ,  H04N21/439 ,  H04R1/403 ,  H04R5/04 ,  H04R2203/12

Abstract: A method and a system for achieving a self-adaptive surround sound. The method comprises: recognizing specific positions of a room and a user in the room by using an object recognition technology, capturing focusing images of recognized objects by controlling a camera using a focusing control technology, and recording corresponding focusing parameters (S110); calculating position information of the room relative to the camera and position information of the user relative to the camera according to the images and the parameters (S120); calculating sound beams that can achieve the surround sound at the position of the user in said room according to aforesaid calculated position information of the room and the user (S130); obtaining parameters of a filter group according to the calculated sound beams, and adjusting the filter group of a loudspeaker array according to the parameters (S140); and playing an audio signal via the loudspeaker array after the audio signal is filtered by the filter group that has been adjusted according to the parameters to form surround sound at the position of the user in the room (S150).

公开(公告)号：US09437209B2

公开(公告)日：2016-09-06

申请号：US14401198

申请日：2013-08-01

Applicant: Goertek, Inc.

Inventor： Liu Song ,  Bo Li ,  Shasha Lou

IPC: G10L21/00 ,  G10L21/0208 ,  H04M1/60 ,  G10L25/78 ,  G10L21/02 ,  G10L21/0216

CPC classification number: G10L21/0208 ,  G10L21/02 ,  G10L25/78 ,  G10L2021/02161 ,  H04M1/6008 ,  H04M2250/12

Abstract: The present invention discloses a speech enhancement method and device for mobile phones. By the method and device provided by the present invention, the mobile phone holding state of a user is detected when the user is talking on the phone, so that different denoising solutions will be employed according to the state of the user in holding the mobile phone. When the user holds the mobile phone normally, a solution integrating multi-microphone denoising and single-microphone denoising will be employed to effectively suppress both the steady noise and the non-steady noise; and when the user holds the mobile phone abnormally, a solution of single-microphone denoising will be employed only to suppress the steady noise. The distortion of speech by multi-microphone denoising is avoided, and the speech quality is ensured.

Abstract translation: 本发明公开了一种用于移动电话的语音增强方法和装置。 通过本发明提供的方法和装置，当用户正在通话时检测用户的手机保持状态，从而根据用户握持手机的状态采用不同的去噪方案 。 当用户正常握住手机时，将采用集成多麦克风去噪和单麦克风去噪的解决方案，有效抑制稳定噪声和非稳定噪声; 当用户手持手机不正常时，单麦克风去噪的解决方案只能用于抑制稳定的噪声。 避免了多麦克风去噪的语音失真，保证了语音质量。

公开(公告)号：US20160206222A1

公开(公告)日：2016-07-21

申请号：US14901581

申请日：2015-05-25

Applicant: GOERTEK INC

Inventor： Song Liu ,  Bo Li ,  Na Li

IPC: A61B5/024 ,  G10L21/0208 ,  H04R1/10 ,  A61B5/00 ,  H04R29/00

CPC classification number: A61B5/02438 ,  A61B5/024 ,  A61B5/02444 ,  A61B5/6803 ,  A61B5/721 ,  A61B5/7225 ,  A61B2562/0247 ,  G10L21/0208 ,  H04R1/10 ,  H04R1/1016 ,  H04R1/1041 ,  H04R1/1075 ,  H04R1/1083 ,  H04R1/1091 ,  H04R3/00 ,  H04R29/004

Abstract: The present invention discloses a heart rate detection method used in an earphone and an earphone capable of detecting heart rate. The method comprises: providing a cavity inside the earphone, and installing a microphone in the cavity; providing an acceleration sensor in the earphone; performing self-adaptive filtering process on signals collected by the acceleration sensor, and obtaining estimated signals of the signals generated by body movement of a wearer in the signals collected by the microphone; subtracting the estimated signals from the signals collected by the microphone to obtain signals related to heart rate; and detecting heart rate according to the signals related to heart rate. The technical scheme of the invention adopts an enclosed cavity to place the microphone to reduce interference of external noises and reinforce signal information collected by the microphone. By performing self-adaptive filtering on signals collected by the acceleration sensor to obtain estimated signals, subtracting the estimated signals from the signals collected by the microphone, and then detecting the heart rate, the influence of the body movement of the wearer on heart rate detection can be eliminated.

Abstract translation: 本发明公开了一种能够检测心率的耳机和耳机中使用的心率检测方法。 该方法包括：在耳机内提供空腔，并在麦克风中安装麦克风; 在耳机中提供加速度传感器; 对由加速度传感器收集的信号执行自适应滤波处理，并且获取由麦克风收集的信号中穿戴者身体运动产生的信号的估计信号; 从麦克风收集的信号中减去估计信号，以获得与心率相关的信号; 并根据与心率相关的信号检测心率。 本发明的技术方案采用封闭腔放置麦克风以减少外部噪声的干扰，并加强麦克风收集的信号信息。 通过对由加速度传感器收集的信号执行自适应滤波以获得估计信号，从麦克风收集的信号中减去估计信号，然后检测心率，穿戴者身体运动对心率检测的影响 可以消除。

公开(公告)号：US09269369B2

公开(公告)日：2016-02-23

申请号：US14407610

申请日：2013-04-01

Applicant: Goertek, Inc.

Inventor： Shasha Lou ,  Xiaojie Wu ,  Bo Li

IPC: G10L21/0208

CPC classification number: G10L21/0208 ,  G10L2021/02082

Abstract: The present invention relates to a method and device for dereverberation of single-channel speech. The method includes the following steps of framing an input single channel speech signal, and processing the frame signals as follows according to a time sequence: performing short-time Fourier transform on a current frame to obtain a power spectrum and a phase spectrum of the current frame; selecting several frames previous to the current frame and having a distance from the current frame within a set duration range, and performing linear superposition on the power spectra of these frames to estimate the power spectrum of a late reflection sound of the current frame; removing the estimated power spectrum of the late reflection sound of the current frame from the power spectrum of the current frame by a spectral subtraction method to obtain the power spectra of a direct sound and an early reflection sound of the current frame; and performing inverse short-time Fourier transform on the power spectra of the direct sound and the early reflection sound of the current frame and the phase spectrum of the current frame together to obtain a signal of the current frame after dereverberation. The dereverberation method and device can solve the problem that the estimation of a transfer function of a reverberation environment or the estimation of reverberation time is difficult in the dereverberation of single-channel speech.

Abstract translation: 本发明涉及一种用于单声道语音混响的方法和装置。 该方法包括以下步骤：根据时序对帧输入单声道语音信号进行成帧处理，如下：对当前帧执行短时傅里叶变换，获得当前的功率谱和相位谱 帧; 选择当前帧之前的几帧，并且在设定的持续时间范围内与当前帧有距离，并对这些帧的功率谱进行线性叠加，以估计当前帧的后期反射声的功率谱; 通过频谱相减法从当前帧的功率谱中去除当前帧的后期反射声的估计功率谱，以获得当前帧的直接声音和早期反射声的功率谱; 并对当前帧的直接声音和早期反射声音的功率谱和当前帧的相位频谱进行逆时空傅里叶变换，以获得混响后的当前帧的信号。 去混响方法和装置可以解决在单声道语音的混响中难以估计混响环境的传递函数的估计或混响时间的估计的问题。

公开(公告)号：US09065896B2

公开(公告)日：2015-06-23

申请号：US14351225

申请日：2013-05-30

Applicant: Goertek, Inc.

Inventor： Shasha Lou ,  Bo Li ,  Xiaojie Wu

IPC: H04J1/16 ,  H04M9/08 ,  G10L21/02 ,  H04L12/28

CPC classification number: H04M9/082 ,  G10L21/02

Abstract: Disclosed in the invention is a method and system for sampling rate mismatch correction of transmitting and receiving terminals, which can obtain a high-precision sampling rate mismatch in real time, carry out sampling rate correction on transmitting and receiving terminal signals, and send the transmitting terminal signal and the receiving terminal signal that have the same sampling rate after corrected to an echo cancellation system to carry out echo cancellation. The present invention can improve the quality of echo cancellation, simplify the computation and reduce the cost. The method for sampling rate mismatch correction of transmitting and receiving terminals provided in the embodiments of the invention comprises: calculating a transfer function of a receiving terminal signal relative to a transmitting terminal signal at each sampling timing according to the transmitting and receiving terminal signals; obtaining a transmission time delay of the transmitting and receiving terminals at each sampling timing using the transfer function; obtaining a sampling rate mismatch of the transmitting and receiving terminals at each sampling timing by means of parameter fitting using the transmission time delay and the linear relationship between the transmission time delay and the sampling rate mismatch; and adjusting the sampling rate of the transmitting terminal signal or the receiving terminal signal at each sampling timing according to the sampling rate mismatch.

Abstract translation: 本发明公开了一种发送和接收终端采样速率失配校正的方法和系统，其可以实时获得高精度采样率失配，对发送和接收终端信号进行采样率校正，并发送发送 终端信号和接收终端信号，其在校正到回波消除系统之后具有相同的采样率，以执行回声消除。 本发明可以提高回声消除的质量，简化计算并降低成本。 本发明实施例提供的发送和接收终端的采样率失配校正方法包括：根据发送和接收终端信号，在每个采样定时根据发送终端信号计算接收终端信号的传递函数; 使用传递函数在每个采样定时获得发送和接收终端的传输时间延迟; 通过使用传输时间延迟和传输时间延迟与采样率失配之间的线性关系的参数拟合，在每个采样定时获得发射和接收终端的采样率失配; 并且根据采样率不匹配在每个采样定时调整发送终端信号或接收终端信号的采样率。

公开(公告)号：US20150149160A1

公开(公告)日：2015-05-28

申请号：US14407610

申请日：2013-04-01

Applicant: Goertek, Inc.

Inventor： Shasha Lou ,  Xiaojie Wu ,  Bo Li

IPC: G10L21/0208

CPC classification number: G10L21/0208 ,  G10L2021/02082

Abstract: The present invention relates to a method and device for dereverberation of single-channel speech. The method includes the following steps of framing an input single channel speech signal, and processing the frame signals as follows according to a time sequence: performing short-time Fourier transform on a current frame to obtain a power spectrum and a phase spectrum of the current frame; selecting several frames previous to the current frame and having a distance from the current frame within a set duration range, and performing linear superposition on the power spectra of these frames to estimate the power spectrum of a late reflection sound of the current frame; removing the estimated power spectrum of the late reflection sound of the current frame from the power spectrum of the current frame by a spectral subtraction method to obtain the power spectra of a direct sound and an early reflection sound of the current frame; and performing inverse short-time Fourier transform on the power spectra of the direct sound and the early reflection sound of the current frame and the phase spectrum of the current frame together to obtain a signal of the current frame after dereverberation. The dereverberation method and device can solve the problem that the estimation of a transfer function of a reverberation environment or the estimation of reverberation time is difficult in the dereverberation of single-channel speech.

Abstract translation: 本发明涉及一种用于单声道语音混响的方法和装置。 该方法包括以下步骤：根据时序对帧输入单声道语音信号进行成帧处理，如下：对当前帧执行短时傅里叶变换，获得当前的功率谱和相位谱 帧; 选择当前帧之前的几帧，并且在设定的持续时间范围内与当前帧有距离，并对这些帧的功率谱进行线性叠加，以估计当前帧的后期反射声的功率谱; 通过频谱相减法从当前帧的功率谱中去除当前帧的后期反射声的估计功率谱，以获得当前帧的直接声音和早期反射声的功率谱; 并对当前帧的直接声音和早期反射声音的功率谱和当前帧的相位频谱进行逆时空傅里叶变换，以获得混响后的当前帧的信号。 去混响方法和装置可以解决在单声道语音的混响中难以估计混响环境的传递函数的估计或混响时间的估计的问题。