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公开(公告)号：US11876497B2
公开(公告)日：2024-01-16
申请号：US17632583
申请日：2019-09-06
申请人： Google LLC
发明人： Jae Lee , Priya Kasirajan
摘要： The present disclosure provides systems and methods for progressively transitioning the playback volume based on a background noise level. The device may have a predetermined quantity of volume levels between a minimum volume and a maximum volume. The volume levels may be spaced by predetermined increments, such that there is a predefined difference between adjacent volume levels. A digital gain may be used to adjust the volume level and an analog gain may allow for the playback volume to be adjusted to an amount between adjacent volume levels. The playback volume may progressively transition within the predefined volume levels by an amount less than the predetermined difference between adjacent volume levels. This smaller amount may be the analog gain.
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公开(公告)号：US20230232144A1
公开(公告)日：2023-07-20
申请号：US17685924
申请日：2022-03-03
申请人： Google LLC
发明人： Ketan Shringarpure , Warwick Ka Kui Wong , Chi Kin Benjamin Leung , Yao Ding , Jingyu Huang , Jae Lee
CPC分类号： H04R1/083 , H04R1/04 , H02H9/046 , H04R2499/11
摘要： The disclosure generally relates to a conductive layer having one or more protrusions configured to attract an electrostatic discharge (“ESD”) arc. The device may be any device, such as a smartphone, tablet, earbuds, etc. The device may include a microphone and, therefore, may include a microphone opening. The conductive layer may include a conductive opening axially aligned with the microphone opening and one or more protrusions extending radially inwards towards the center of the conductive opening.
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公开(公告)号：US20230055722A1
公开(公告)日：2023-02-23
申请号：US18045679
申请日：2022-10-11
申请人： Google LLC
发明人： Guohua Sun , Jae Lee , Tiantian Xu
IPC分类号： G10K11/178 , H04R1/10
摘要： A hybrid ANC system that can allow a feedback microphone to receive the same external noise as a feedforward microphone. A processor can generate an anti-noise signal based on what both microphones received to cancel a broader range of frequencies of the external noise.
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公开(公告)号：US20220035593A1
公开(公告)日：2022-02-03
申请号：US17282234
申请日：2020-06-23
申请人： Google LLC
发明人： Jae Lee , Manas Maheshwari
IPC分类号： G06F3/16
摘要： The present disclosure provides systems and methods for applying a volume gain to change the playback volume of a device by calculating a smoothed noise estimate. The smoothed noise estimate may calculated using an exponential smoothing method. The exponential smoothing method may include applying a weight factor to both a background noise estimate and a historical smoothed noise estimate. The weight factor may place more emphasis on either the background noise estimate or the historical smoothed noise estimate depending on the value of the weight factor. The value of the weight factor may change based on the type of environment the device is in, the speed of the background noise transitions, and/or historical data. The calculated smoothed noise estimate may be used to calculate a volume gain. The volume gain may be applied over a period of time such that the playback volume of the device changes smoothly.
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公开(公告)号：US20220417647A1
公开(公告)日：2022-12-29
申请号：US17768667
申请日：2020-09-16
申请人： Google LLC
发明人： Guohua Sun , Leng Ooi , Jae Lee
IPC分类号： H04R1/10 , H04R25/00 , G10K11/178
摘要： The present disclosure provides systems and method for adjusting the audio output of a wearable device based on an audio gain profile of a user. The wearable device may receive an audiogram indicating one or more frequency ranges associated with hearing loss. The wearable device may determine the audio gain profile based on the audiogram. The wearable device may use one or more adjustment modules to determine a gain to apply to the audio output based on the audio gain profile. The adjustment modules may include an active noise control module, a hearing assistance module, and a transparency control module. The wearable device may determine the amount of gain to apply using a least mean square algorithm and/or a machine learning model.
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公开(公告)号：US20220157290A1
公开(公告)日：2022-05-19
申请号：US17097616
申请日：2020-11-13
申请人： Google LLC
发明人： Guohua Sun , Jae Lee , Tiantian Xu
IPC分类号： G10K11/178 , H04R1/10
摘要： A hybrid ANC system that can allow a feedback microphone to receive the same external noise as a feedforward microphone. A processor can generate an anti-noise signal based on what both microphones received to cancel a broader range of frequencies of the external noise.
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公开(公告)号：US11934737B2
公开(公告)日：2024-03-19
申请号：US17282234
申请日：2020-06-23
申请人： Google LLC
发明人： Jae Lee , Manas Maheshwari
CPC分类号： G06F3/165 , H04R1/1041
摘要： The present disclosure provides systems and methods for applying a volume gain to change the playback volume of a device by calculating a smoothed noise estimate. The smoothed noise estimate may calculated using an exponential smoothing method. The exponential smoothing method may include applying a weight factor to both a background noise estimate and a historical smoothed noise estimate. The weight factor may place more emphasis on either the background noise estimate or the historical smoothed noise estimate depending on the value of the weight factor. The value of the weight factor may change based on the type of environment the device is in, the speed of the background noise transitions, and/or historical data. The calculated smoothed noise estimate may be used to calculate a volume gain. The volume gain may be applied over a period of time such that the playback volume of the device changes smoothly.
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公开(公告)号：US11232800B2
公开(公告)日：2022-01-25
申请号：US16710189
申请日：2019-12-11
申请人： Google LLC
发明人： Jae Lee
摘要： The present disclosure provides for improved hot word detection in electronic devices, particularly small form factor devices such as wearables. The electronic device includes an accelerometer onboard to pick up voice in noisy conditions, and utilizes the accelerometer to confirm that a particular user intended to activate the hot word detection, thereby reducing false detection of other people's voices.
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公开(公告)号：US20200342878A1
公开(公告)日：2020-10-29
申请号：US16710189
申请日：2019-12-11
申请人： Google LLC
发明人： Jae Lee
摘要： The present disclosure provides for improved hot word detection in electronic devices, particularly small form factor devices such as wearables. The electronic device includes an accelerometer onboard to pick up voice in noisy conditions, and utilizes the accelerometer to confirm that a particular user intended to activate the hot word detection, thereby reducing false detection of other people's voices.
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公开(公告)号：US20240348969A1
公开(公告)日：2024-10-17
申请号：US18702281
申请日：2022-10-19
申请人： Google LLC
发明人： Guohua Sun , Jae Lee
IPC分类号： H04R1/10 , G10K11/178
CPC分类号： H04R1/1083 , G10K11/17854 , H04R2460/05
摘要： A wearable device includes a feedforward microphone; a feedback microphone; a voice accelerometer; and one or more processors in communication with the feedforward microphone, the feedback microphone, and the voice accelerometer. The one or more processors may be configured to receive an occlusion effect (“OE”) profile associated with increased sound pressure level within an ear canal; determine an OE gain profile based on the OE profile; receive voice accelerometer data; adjust the OE gain profile based on the voice accelerometer data; generate an OE cancellation signal based on the OE gain profile to equalize the OE profile; receive, from the feedforward microphone, first audio content including external audio; receive, from the feedback microphone, second audio content including audio within the ear canal of a user; and adjust, based on the OE cancellation signal and the received first and second audio content, an audio output.
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