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1. 发明授权

US11636868B2 Audio processing method for performing audio pass-through and related apparatus 有权
公开(公告)号：US11636868B2
公开(公告)日：2023-04-25
申请号：US17164794
申请日：2021-02-01
申请人： Realtek Semiconductor Corp.
发明人： Wei-Hung He
IPC分类号： G10L21/0232 , G10L19/008 , G10L21/0224
摘要： An audio processing method includes: converting a time-domain audio signal into a frequency-domain audio signal; determining a noise reduction gain according to the frequency-domain audio signal; and selecting at least one set of time-domain filter coefficients from a plurality sets of time-domain filter coefficients according to the noise reduction gain; configuring a time-domain filter according to the at least one selected set of time-domain filter coefficients, and filtering the time-domain audio signal with the time-domain filter.

2. 发明授权

US11109158B2 Audio adjustment method and associated audio adjustment circuit for active noise cancellation 有权
公开(公告)号：US11109158B2
公开(公告)日：2021-08-31
申请号：US16828992
申请日：2020-03-25
申请人： Realtek Semiconductor Corp.
发明人： Chun-Ming Cho , Wei-Hung He
IPC分类号： H04R5/04 , H04R5/033 , H04L5/00 , H04L27/26 , H04R3/04
摘要： An active noise cancellation (ANC) circuit includes: an audio generating circuit; an audio input unit for transmitting an audio to be broadcast or a sound testing signal as a first time domain signal; an audio receiver for receiving a background sound as a second time domain signal, wherein the background sound corresponds to the audio to be broadcasted or the sound testing signal; and a channel estimation unit, configured to receive the first time domain signal and the second time domain signal, perform time-frequency conversion upon the first time domain signal and the second time domain signal to obtain a first frequency domain signal and a second frequency domain signal respectively, and generate a frequency response according to the first frequency domain signal and the second frequency domain signal. The frequency response is for adjusting an active noise cancelling coefficient of the ANC circuit to improve a noise cancellation effect.

3. 发明授权

US10984779B2 Audio adjustment method and associated audio adjustment device for active noise cancellation 有权
公开(公告)号：US10984779B2
公开(公告)日：2021-04-20
申请号：US16827616
申请日：2020-03-23
申请人： Realtek Semiconductor Corp.
发明人： Chun-Ming Cho , Wei-Hung He
IPC分类号： G10K11/178 , H04R1/10
摘要： The present invention provides an audio adjustment method and associated audio adjustment device for active noise cancellation. The audio adjustment method includes: broadcasting a single tone having a frequency fk; generating M sets of filtering coefficients regarding the frequency fk, wherein each set of filtering coefficients within the M sets of filtering coefficients includes a combination of an amplitude and a phase, and the M sets of filtering coefficients are different from one another; determining an mth set of filtering coefficients from the M sets of filtering coefficients to minimize energy corresponding to the frequency fk; and adjusting the single tone with the mth set of filtering coefficients to obtain an adjusted single tone corresponding to the frequency fk.

4. 发明申请

US20200336833A1 AUDIO ADJUSTMENT METHOD AND ASSOCIATED AUDIO ADJUSTMENT CIRCUIT FOR ACTIVE NOISE CANCELLATION 审中-公开
公开(公告)号：US20200336833A1
公开(公告)日：2020-10-22
申请号：US16828992
申请日：2020-03-25
申请人： Realtek Semiconductor Corp.
发明人： Chun-Ming Cho , Wei-Hung He
IPC分类号： H04R5/04 , H04R5/033 , H04R3/04 , H04L5/00 , H04L27/26
摘要： An active noise cancellation (ANC) circuit includes: an audio generating circuit; an audio input unit for transmitting an audio to be broadcast or a sound testing signal as a first time domain signal; an audio receiver for receiving a background sound as a second time domain signal, wherein the background sound corresponds to the audio to be broadcasted or the sound testing signal; and a channel estimation unit, configured to receive the first time domain signal and the second time domain signal, perform time-frequency conversion upon the first time domain signal and the second time domain signal to obtain a first frequency domain signal and a second frequency domain signal respectively, and generate a frequency response according to the first frequency domain signal and the second frequency domain signal. The frequency response is for adjusting an active noise cancelling coefficient of the ANC circuit to improve a noise cancellation effect.

5. 发明申请

US20200335078A1 AUDIO ADJUSTMENT METHOD AND ASSOCIATED AUDIO ADJUSTMENT DEVICE FOR ACTIVE NOISE CANCELLATION 审中-公开
公开(公告)号：US20200335078A1
公开(公告)日：2020-10-22
申请号：US16827616
申请日：2020-03-23
申请人： Realtek Semiconductor Corp.
发明人： Chun-Ming Cho , Wei-Hung He
IPC分类号： G10K11/178
摘要： The present invention provides an audio adjustment method and associated audio adjustment device for active noise cancellation. The audio adjustment method includes: broadcasting a single tone having a frequency fk; generating M sets of filtering coefficients regarding the frequency fk, wherein each set of filtering coefficients within the M sets of filtering coefficients includes a combination of an amplitude and a phase, and the M sets of filtering coefficients are different from one another; determining an mth set of filtering coefficients from the M sets of filtering coefficients to minimize energy corresponding to the frequency fk; and adjusting the single tone with the mth set of filtering coefficients to obtain an adjusted single tone corresponding to the frequency fk.

6. 发明申请

US20220068291A1 AUDIO PROCESSING METHOD FOR PERFORMING AUDIO PASS-THROUGH AND RELATED APPARATUS 有权
公开(公告)号：US20220068291A1
公开(公告)日：2022-03-03
申请号：US17164794
申请日：2021-02-01
申请人： Realtek Semiconductor Corp.
发明人： Wei-Hung He
IPC分类号： G10L21/0232 , G10L21/0224 , G10L19/008
摘要： An audio processing method includes: converting a time-domain audio signal into a frequency-domain audio signal; determining a noise reduction gain according to the frequency-domain audio signal; and selecting at least one set of time-domain filter coefficients from a plurality sets of time-domain filter coefficients according to the noise reduction gain; configuring a time-domain filter according to the at least one selected set of time-domain filter coefficients, and filtering the time-domain audio signal with the time-domain filter.

7. 发明申请

US20190387306A1 HEADSET 审中-公开
公开(公告)号：US20190387306A1
公开(公告)日：2019-12-19
申请号：US16159371
申请日：2018-10-12
申请人： REALTEK SEMICONDUCTOR CORP.
发明人： Wei-Hung He
IPC分类号： H04R1/10 , H04R5/04 , H04R5/033
摘要： A headset includes a first sound receiving circuit, a second sound receiving circuit, an adaptive circuit, a first synthesis circuit, and a second synthesis circuit. The adaptive circuit is configured to: obtain a first direction of arrival and a second direction of arrival according to a first sound signal and a second sound signal; obtain a first conversion function and a second conversion function according to the first direction of arrival and the second direction of arrival; obtain a first feed forward audio signal according to the first conversion function and the first sound signal; and obtain a second feed forward audio signal according to the second conversion function and the second sound signal.

8. 发明申请

US20170045621A1 SATELLITE POSITIONING DEVICE AND ELECTRONIC DEVICE 审中-公开
标题翻译：卫星定位装置和电子装置
公开(公告)号：US20170045621A1
公开(公告)日：2017-02-16
申请号：US15060068
申请日：2016-03-03
申请人： REALTEK SEMICONDUCTOR CORP.
发明人： Wei-Hung He , Kuang-Yu Yen
IPC分类号： G01S19/09
CPC分类号： G01S19/05
摘要： The present disclosure provides a satellite positioning device which includes a first short-distance transceiver module and a first satellite positioning device. The first short-distance transceiver module is configured to wirelessly connect to a second short-distance transceiver module of an electronic device, and to receive satellite positioning information from the second short-distance transceiver module. The first satellite positioning module is electrically coupled to the first short-distance transceiver module and is configured to receive at least one satellite signal. The first satellite positioning module generates a first satellite positioning result according to the at least one satellite signal and the satellite positioning information received by the first short-distance transceiver module.
摘要翻译：本公开提供了一种卫星定位设备，其包括第一短距离收发器模块和第一卫星定位设备。第一短距离收发器模块被配置为无线地连接到电子设备的第二短距离收发器模块，并且从第二短距离收发器模块接收卫星定位信息。第一卫星定位模块电耦合到第一短距离收发器模块，并且被配置为接收至少一个卫星信号。第一卫星定位模块根据至少一个卫星信号和由第一短距离收发信机模块接收的卫星定位信息产生第一卫星定位结果。

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