-
1.发明公开公开(公告)号：US20240112662A1
公开(公告)日：2024-04-04
申请号：US18527736
申请日：2023-12-04
申请人： Bose Corporation
IPC分类号： G10K11/178 , H04R1/10 , H04R3/00
CPC分类号： G10K11/1781 , H04R1/1083 , H04R3/002 , G10K2210/1081 , G10K2210/3026 , G10K2210/3056 , H04R2460/01
摘要： Various aspects include a wearable audio device having active noise reduction (ANR). In some cases, a method for processing audio signals includes receiving a noise reduction signal configured to modify an audio signal and generate a noise reduced audio signal, the noise reduction signal having a nominal loop gain; and generating an adjusted noise reduction signal in response to a detected adverse low frequency event, the adjusted noise reduction signal having a modulated loop gain configured to reduce artifacts in the noise reduced audio signal.
-
2.发明授权公开(公告)号：US11164554B2
公开(公告)日：2021-11-02
申请号：US16811148
申请日：2020-03-06
申请人： Bose Corporation
IPC分类号： G10K11/178 , H04R1/10 , H04R3/00
摘要： Various aspects include a wearable audio device having active noise reduction (ANR), where the ANR device includes: a feedback microphone; an electroacoustic transducer; and a feedback compensator configured to output a noise reduction signal to the electroacoustic transducer in response to a feedback signal from the feedback microphone, wherein the feedback compensator includes a tunable filter that modulates a loop gain in response to an adverse low frequency event being detected in the noise reduction signal outputted from the tunable filter, wherein the tunable filter is configured to maintain a substantially similar loop gain shape near a low frequency cross-over as the low frequency cross-over changes during loop gain modulation.
-
公开(公告)号：US20230403496A1
公开(公告)日：2023-12-14
申请号：US17837482
申请日：2022-06-10
申请人： Bose Corporation
发明人： Brandon Lee Olmos , Lei Cheng , Ray Scott Wakeland , Jahn Dmitri Eichfeld , Travis Lee Hein , Yashar M. Aval , Siamak Farahbakhsh
IPC分类号： H04R1/10 , G10K11/178
CPC分类号： H04R1/1083 , H04R1/1041 , G10K11/17854 , G10K11/17881 , G10K11/17883 , H04R2460/01 , H04R2460/09 , H04R2420/05 , G10K2210/1081
摘要： Various implementations include audio devices and methods for noise reduction control in wearable audio devices and/or vehicle audio systems. Certain implementations include a non-occluding wearable audio device having: at least one electro-acoustic transducer; at least one microphone; and a control system coupled with the at least one electro-acoustic transducer and the at least one microphone, the control system programmed to: adjust an active noise reduction (ANR) setting for audio output to the at least one electro-acoustic transducer in response to detecting use of the non-occluding wearable audio device in a vehicle.
-
4.发明申请公开(公告)号：US20220020351A1
公开(公告)日：2022-01-20
申请号：US17488509
申请日：2021-09-29
申请人： Bose Corporation
IPC分类号： G10K11/178 , H04R1/10 , H04R3/00
摘要： Various aspects include a wearable audio device having active noise reduction (ANR), where the ANR device includes: a feedback microphone; an electroacoustic transducer; and a feedback compensator configured to output a noise reduction signal to the electroacoustic transducer in response to a feedback signal from the feedback microphone, wherein the feedback compensator includes a tunable filter that modulates a loop gain in response to an adverse low frequency event being detected in the noise reduction signal outputted from the tunable filter, wherein the tunable filter is configured to maintain a substantially similar loop gain shape near a low frequency cross-over as the low frequency cross-over changes during loop gain modulation.
-
5.发明公开公开(公告)号：US20230144087A1
公开(公告)日：2023-05-11
申请号：US18149834
申请日：2023-01-04
申请人： Bose Corporation
IPC分类号： G10K11/178 , H04R1/10 , H04R3/00
CPC分类号： G10K11/1781 , H04R1/1083 , H04R3/002 , G10K2210/1081 , G10K2210/3026 , G10K2210/3056 , H04R2460/01
摘要： Various aspects include a wearable audio device having active noise reduction (ANR). In some cases, an ANR system for a wearable audio device includes: a fixed filter that receives a signal from a feedback microphone and outputs a noise reduction signal, where the fixed filter is configured to provide ANR with a nominal loop gain; and a tunable filter that outputs an adjusted noise reduction signal by modulating the nominal loop gain in response to low frequency noise being detected in the noise reduction signal, where modulating the nominal loop gain includes reducing low frequency ANR performance.
-
6.发明授权公开(公告)号：US11568849B2
公开(公告)日：2023-01-31
申请号：US17488509
申请日：2021-09-29
申请人： Bose Corporation
IPC分类号： G10K11/178 , H04R1/10 , H04R3/00
摘要： Various aspects include a wearable audio device having active noise reduction (ANR), where the ANR device includes: a feedback microphone; an electroacoustic transducer; and a feedback compensator configured to output a noise reduction signal to the electroacoustic transducer in response to a feedback signal from the feedback microphone, wherein the feedback compensator includes a tunable filter that modulates a loop gain in response to an adverse low frequency event being detected in the noise reduction signal outputted from the tunable filter, wherein the tunable filter is configured to maintain a substantially similar loop gain shape near a low frequency cross-over as the low frequency cross-over changes during loop gain modulation.
-
7.发明授权公开(公告)号：US11875768B2
公开(公告)日：2024-01-16
申请号：US18149834
申请日：2023-01-04
申请人： Bose Corporation
IPC分类号： G10K11/178 , H04R1/10 , H04R3/00
CPC分类号： G10K11/1781 , H04R1/1083 , H04R3/002 , G10K2210/1081 , G10K2210/3026 , G10K2210/3056 , H04R2460/01
摘要： Various aspects include a wearable audio device having active noise reduction (ANR). In some cases, an ANR system for a wearable audio device includes: a fixed filter that receives a signal from a feedback microphone and outputs a noise reduction signal, where the fixed filter is configured to provide ANR with a nominal loop gain; and a tunable filter that outputs an adjusted noise reduction signal by modulating the nominal loop gain in response to low frequency noise being detected in the noise reduction signal, where modulating the nominal loop gain includes reducing low frequency ANR performance.
-
8.发明申请公开(公告)号：US20210280162A1
公开(公告)日：2021-09-09
申请号：US16811148
申请日：2020-03-06
申请人： Bose Corporation
IPC分类号： G10K11/178 , H04R1/10 , H04R3/00
摘要： Various aspects include a wearable audio device having active noise reduction (ANR), where the ANR device includes: a feedback microphone; an electroacoustic transducer; and a feedback compensator configured to output a noise reduction signal to the electroacoustic transducer in response to a feedback signal from the feedback microphone, wherein the feedback compensator includes a tunable filter that modulates a loop gain in response to an adverse low frequency event being detected in the noise reduction signal outputted from the tunable filter, wherein the tunable filter is configured to maintain a substantially similar loop gain shape near a low frequency cross-over as the low frequency cross-over changes during loop gain modulation.
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.017 秒)
