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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
Applicant: Google LLC
Inventor： Jae Lee , Priya Kasirajan
Abstract: 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
Applicant: Google LLC
Inventor： Ketan Shringarpure , Warwick Ka Kui Wong , Chi Kin Benjamin Leung , Yao Ding , Jingyu Huang , Jae Lee
CPC classification number: H04R1/083 , H04R1/04 , H02H9/046 , H04R2499/11
Abstract: 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
Applicant: Google LLC
Inventor： Guohua Sun , Jae Lee , Tiantian Xu
IPC: G10K11/178 , H04R1/10
Abstract: 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
Applicant: Google LLC
Inventor： Jae Lee , Manas Maheshwari
IPC: G06F3/16
Abstract: 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：US12244997B2
公开(公告)日：2025-03-04
申请号：US17768667
申请日：2020-09-16
Applicant: Google LLC
Inventor： Guohua Sun , Leng Ooi , Jae Lee
IPC: H04R1/10 , G10K11/178 , H04R25/00
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20220417647A1
公开(公告)日：2022-12-29
申请号：US17768667
申请日：2020-09-16
Applicant: Google LLC
Inventor： Guohua Sun , Leng Ooi , Jae Lee
IPC: H04R1/10 , H04R25/00 , G10K11/178
Abstract: 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
Applicant: Google LLC
Inventor： Guohua Sun , Jae Lee , Tiantian Xu
IPC: G10K11/178 , H04R1/10
Abstract: 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：US12223975B2
公开(公告)日：2025-02-11
申请号：US17633782
申请日：2020-09-15
Applicant: Google LLC
Inventor： Jae Lee , Priya Kasirajan , Leng Ooi
IPC: G10L21/0232 , G10L21/0208 , G10L21/0216
Abstract: The present disclosure provides systems and method for determining a background noise level. The device may receive audio from two or more microphones. The audio may include a first signal and a second signal, such that each microphone receives its own signal. The time, loudness, frequency of the first and second signals may be compared to determine the source of the audio, such as whether the audio is the user's voice or background noise. Based on the source of the audio, the audio may be suppressed to reduce false estimations when calculating the background noise level.
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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
Applicant: Google LLC
Inventor： Jae Lee , Manas Maheshwari
CPC classification number: G06F3/165 , H04R1/1041
Abstract: 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
Applicant: Google LLC
Inventor： Jae Lee
Abstract: 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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