公开(公告)号：US20170372691A1

公开(公告)日：2017-12-28

申请号：US15344713

申请日：2016-11-07

Applicant: MediaTek Inc.

Inventor： Chao-Ling Hsu ,  Yiou-Wen Cheng ,  Chih-Ping Lin ,  Chieh-Cheng Cheng

IPC: G10K11/178 ,  H04R1/10

CPC classification number: G10K11/178 ,  G10K2210/3044 ,  H04R1/1016 ,  H04R1/1041 ,  H04R2201/107 ,  H04R2410/05 ,  H04R2420/07 ,  H04R2460/01

Abstract: An earpiece of a headset uses a first signal and a second signal received from an in-ear microphone and an outside microphone, respectively, to enhance microphone signals. The in-ear microphone is positioned at a proximal side of the earpiece with respect to an ear canal of a user, and the outside microphone is positioned at a distal side of the earpiece with respect to the ear canal. A processing unit includes a filter, which digitally filters out in-ear noise from the first signal using the second signal as a reference to produce a de-noised signal to thereby enhance the microphone signals.

公开(公告)号：US09569006B2

公开(公告)日：2017-02-14

申请号：US14644407

申请日：2015-03-11

Applicant: MediaTek Inc.

Inventor： Xin-Wei Shih ,  Chao-Ling Hsu ,  Shaw-Min Lei

IPC: G06F3/041 ,  G06F3/01 ,  G06F3/0484

CPC classification number: G06F3/017 ,  G06F3/041 ,  G06F3/04847 ,  G06F2203/04101

Abstract: A portable electronic device including an ultrasound transmitter, an ultrasound receiver, and a processing unit is provided. The ultrasound transmitter sends ultrasonic signals, while the ultrasound receiver receives reflected ultrasonic signals from an object. The ultrasound transmitter and the ultrasound receiver are disposed to form a reference axis. The processing unit processes the reflected ultrasonic signals to obtain a time-frequency distribution thereof, and determines a 1D gesture corresponding to projection loci of movements of the object on the reference axis according to the time-frequency distribution.

Abstract translation: 提供了包括超声波发射器，超声波接收器和处理单元的便携式电子设备。 超声波发射器发送超声波信号，而超声波接收器从物体接收反射的超声波信号。 超声波发射器和超声波接收器被设置成形成参考轴。 处理单元处理反射的超声波信号以获得其时间 - 频率分布，并且根据时间 - 频率分布确定与参考轴上的对象的移动的投影轨迹相对应的1D手势。

公开(公告)号：US10199029B2

公开(公告)日：2019-02-05

申请号：US15344713

申请日：2016-11-07

Applicant: MediaTek Inc.

Inventor： Chao-Ling Hsu ,  Yiou-Wen Cheng ,  Chih-Ping Lin ,  Chieh-Cheng Cheng

IPC: G10K11/16 ,  H03B29/00 ,  G10K11/178 ,  H04R1/10

Abstract: An earpiece of a headset uses a first signal and a second signal received from an in-ear microphone and an outside microphone, respectively, to enhance microphone signals. The in-ear microphone is positioned at a proximal side of the earpiece with respect to an ear canal of a user, and the outside microphone is positioned at a distal side of the earpiece with respect to the ear canal. A processing unit includes a filter, which digitally filters out in-ear noise from the first signal using the second signal as a reference to produce a de-noised signal to thereby enhance the microphone signals.

公开(公告)号：US20170215005A1

公开(公告)日：2017-07-27

申请号：US15003954

申请日：2016-01-22

Applicant: MediaTek Inc.

Inventor： Chao-Ling Hsu ,  Yiou-Wen Cheng ,  Liang-Che Sun

IPC: H04R3/00 ,  G06T7/20 ,  G06F3/16

CPC classification number: H04R3/005 ,  G06F3/165 ,  G06T7/246 ,  H04R1/406 ,  H04R2201/401 ,  H04R2430/20 ,  H04R2430/25 ,  H04S2400/11 ,  H04S2400/15

Abstract: An audio refocusing method includes receiving an indication signal indicating which sound source in a recorded signal has to be refocused on; determining a direction of the sound source or a location of the sound source; and enhancing sound generated by the sound source in the recorded signal according to the direction or the location of the sound source to generate a processed signal.

公开(公告)号：US20240313886A1

公开(公告)日：2024-09-19

申请号：US18223040

申请日：2023-07-18

Applicant: MEDIATEK INC.

Inventor： Shao-Wei Fan Jiang ,  Chao-Ling Hsu ,  Yiou-Wen Cheng

IPC: H04L1/00

CPC classification number: H04L1/0033

Abstract: A signal loss compensation method, for compensating an input signal comprising (K+Y) lost signal units and normal signal units. The signal loss compensation method comprises: compensating 1st to (K−1)th lost signal units by a first signal loss concealment algorithm to generate a first compensation signal and accordingly generating a first synthetic signal; compensating (K+X+1)th to (K+Y) th lost signal units by a second signal loss concealment algorithm to generate a second compensation signal and accordingly generating a second synthetic signal; compensating K th to (K+X)th lost signal units by the first signal loss concealment algorithm or the second signal loss concealment algorithm to generate a third synthetic signal; generating an output signal according to the first synthetic signal, the second synthetic signal, the third synthetic signal and the normal signal units. K and Y are positive integers, X is a natural number, and Y is larger than X.

公开(公告)号：US20180233122A1

公开(公告)日：2018-08-16

申请号：US15653506

申请日：2017-07-18

Applicant: MEDIATEK INC.

Inventor： Chao-Ling Hsu ,  Yiou-Wen Cheng

IPC: G10K11/178 ,  H04R3/00 ,  H04R1/10

CPC classification number: G10K11/178 ,  G10K11/17823 ,  G10K11/17854 ,  G10K11/17881 ,  G10K2210/1081 ,  G10K2210/3025 ,  H04R1/1083 ,  H04R3/002 ,  H04R3/005 ,  H04R2227/001 ,  H04R2410/05 ,  H04R2499/11

Abstract: A method for performing active noise control upon a target zone includes: using an adaptive filtering circuit to receive at least one microphone signal obtained from a microphone; and, dynamically compensating at least one coefficient of the adaptive filtering circuit to adjust a frequency response of the adaptive filtering circuit according to an energy distribution of the at least one microphone signal, so as to make the adaptive filtering circuit receive the at least one microphone signal to generate a resultant anti-noise signal to the target zone based on the dynamically adjusted frequency response.

公开(公告)号：US20170262255A1

公开(公告)日：2017-09-14

申请号：US15450005

申请日：2017-03-05

Applicant: MEDIATEK INC.

Inventor： Xin-Wei Shih ,  Chia-Ying Li ,  Chao-Ling Hsu ,  Yiou-Wen Cheng ,  Shen-Kai Chang

IPC: G06F3/16 ,  G11B20/10 ,  G11B27/10

CPC classification number: G06F3/165 ,  G11B20/10527 ,  G11B27/10 ,  G11B2020/10546 ,  H04R29/006 ,  H04S2400/15

Abstract: An audio synchronization method includes: receiving a first audio signal from a first recording device; receiving a second audio signal from a second recording device; performing a correlation operation upon the first audio signal and the second audio signal to align a first pattern of the first audio signal and the first pattern of the second audio signal; after the first patterns of the first audio signal and the second audio signal are aligned, calculating a difference between a second pattern of the first audio signal and the second pattern of the second audio signal; and obtaining a starting-time difference between the first audio signal and the second audio signal for audio synchronization according to the difference between the second pattern of the first audio signal and the second pattern of the second audio signal.

公开(公告)号：US09559736B2

公开(公告)日：2017-01-31

申请号：US14717115

申请日：2015-05-20

Applicant: MediaTek Inc.

Inventor： Chao-Ling Hsu ,  Li-Wei Cheng ,  Chieh-Cheng Cheng ,  Yiou-Wen Cheng ,  Chih-Ping Lin

IPC: H04B1/10 ,  G10K11/00 ,  H04B1/12

CPC classification number: H04B1/1081 ,  G10K11/17817 ,  G10K11/17854 ,  G10K11/17873 ,  G10K2210/3028 ,  G10K2210/3035 ,  G10K2210/3055 ,  H04B1/123 ,  H04R2410/05 ,  H04R2499/13

Abstract: An active noise control system and associated auto-selection method for modeling a secondary path for the active noise control system are provided. The method includes the steps of: receiving a reference signal; filtering the reference signal with a secondary-path estimation filter to obtain a filtered reference signal, wherein the secondary path estimation filter is determined from a plurality of candidate secondary-path estimation filters; filtering the reference signal with an adaptive filter to provide a compensation signal; sensing a residual noise signal at a listening position of the active noise control system; and adapting filter coefficients of the adaptive filter according to the residual noise signal and the filtered reference signal.

Abstract translation: 提供了一种主动噪声控制系统和相关的自动选择方法，用于为主动噪声控制系统建立辅助路径。 该方法包括以下步骤：接收参考信号; 使用二次路径估计滤波器对参考信号进行滤波以获得经滤波的参考信号，其中从多个候选二次路径估计滤波器确定次路径估计滤波器; 用自适应滤波器对参考信号进行滤波以提供补偿信号; 感测在主动噪声控制系统的收听位置处的残余噪声信号; 以及根据残留噪声信号和滤波的参考信号调整自适应滤波器的滤波器系数。

公开(公告)号：US20150161989A1

公开(公告)日：2015-06-11

申请号：US14166881

申请日：2014-01-29

Applicant: MEDIATEK Inc.

Inventor： Chao-Ling Hsu ,  Yiou-Wen Cheng ,  Liang-Che Sun ,  Yuanyuan Wang

IPC: G10L15/08

CPC classification number: G10L15/08 ,  G10L15/22 ,  G10L2015/228

Abstract: The invention provides a system for speech keyword detection and associated method. The system includes a speech keyword detector, an activity predictor and a decision maker. The activity predictor obtains sensor data provided by a plurality of sensors, and processes the sensor data to provide an activity prediction result indicating a probability for whether a user is about to give voice keyword. The decision maker processes the activity prediction result and a preliminary keyword detection result of the speech keyword detection to provide a keyword detection result.

Abstract translation: 本发明提供了一种用于语音关键字检测和相关方法的系统。 该系统包括语音关键词检测器，活动预测器和决策者。 活动预测器获得由多个传感器提供的传感器数据，并且处理传感器数据以提供指示用户是否要给出语音关键字的概率的活动预测结果。 决策者处理活动预测结果和语音关键字检测的初步关键字检测结果以提供关键字检测结果。

公开(公告)号：US20230206924A1

公开(公告)日：2023-06-29

申请号：US17855786

申请日：2022-06-30

Applicant: MEDIATEK INC.

Inventor： Chao-Ling Hsu ,  Yiou-Wen Cheng ,  Cheng-Kuan Wei

IPC: G10L17/02 ,  G10L15/08 ,  G10L15/04

CPC classification number: G10L17/02 ,  G10L15/08 ,  G10L15/04 ,  G10L2015/088

Abstract: A voice wakeup method is applied to wake up an electronic apparatus. The voice wakeup method includes executing a speaker identification function to analyze user voice and acquire a predefined identification of the user voice, executing a voiceprint extraction function to acquire a voiceprint segment of the user voice, executing an on-device training function via the voiceprint segment to generate an updated parameter, and utilizing the updated parameter to calibrate a speaker verification model, so that the speaker verification model is used to analyze a wakeup sentence and decide whether to wake up the electronic apparatus.