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公开(公告)号：EP2425635A1
公开(公告)日：2012-03-07
申请号：EP10715646.5
申请日：2010-04-27
申请人： Bose Corporation
IPC分类号： H04R3/00 , G10K11/178 , H04R5/04 , H03H17/02 , H03H17/04
CPC分类号： H04B1/202 , A61F2011/145 , G10K11/17817 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/3028 , G10K2210/30391 , G10K2210/3056 , G10K2210/3214 , G10K2210/503 , H03H17/0286 , H03H17/0288 , H03H17/0294 , H03H17/04 , H03H2017/0477 , H04M1/05 , H04R1/1083 , H04R3/005 , H04R5/04 , H04R2201/107 , H04R2205/022 , H04R2460/01 , H04R2460/03
摘要： An ANR circuit incorporates a signal processing topology to support the provision of feedback-based ANR, feedforward-based ANR and pass-through audio in which the topology incorporates a branch in which feedback anti-noise sounds are generated from feedback reference sounds received from a feedback microphone, a branch in which feedforward anti-noise sounds are generated from feedforward reference sounds, and a branch in which modified pass-through audio sounds are generated from pass-through audio sounds received from an audio source, wherein these three branches are combined to combine the generated sounds of each branch into a single output by which an acoustic driver is driven.
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公开(公告)号：EP2425421A1
公开(公告)日：2012-03-07
申请号：EP10715082.3
申请日：2010-04-26
申请人： Bose Corporation
IPC分类号： G10K11/178
CPC分类号： H04B1/202 , G10K11/178 , G10K2210/108 , G10K2210/1081 , G10K2210/3026 , G10K2210/30391 , G10K2210/3056 , G10K2210/3214 , G10K2210/503 , H04R1/1016 , H04R1/2803 , H04R2460/11
摘要： Method of supporting talk-through audio in a personal ANR device providing feedforward-based ANR within a casing of the personal ANR device, comprising: configuring a first plurality of filters in a feedforward-based ANR pathway of a first ANR circuit with a first set of filter coefficients to provide feedforward-based ANR employing a first feedforward microphone coupled to the first ANR circuit to detect environmental sounds in an environment external to the casing and a first acoustic driver coupled to the first ANR circuit to acoustically output feedforward anti-noise sounds to reduce the environmental sounds within the casing; awaiting receipt of an indication of a manually-operable control being operated to enable talk-through; and in response, operating said filters to reduce the degree of feedforward-based ANR provided by said filters to enable human speech sounds in the environment external to the casing to be conveyed from said microphone to the first acoustic driver with less attenuation caused by the provision of feedforward-based ANR by said filters.
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公开(公告)号：EP2425635B1
公开(公告)日：2013-08-14
申请号：EP10715646.5
申请日：2010-04-27
申请人： Bose Corporation
CPC分类号： H04B1/202 , A61F2011/145 , G10K11/17817 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/3028 , G10K2210/30391 , G10K2210/3056 , G10K2210/3214 , G10K2210/503 , H03H17/0286 , H03H17/0288 , H03H17/0294 , H03H17/04 , H03H2017/0477 , H04M1/05 , H04R1/1083 , H04R3/005 , H04R5/04 , H04R2201/107 , H04R2205/022 , H04R2460/01 , H04R2460/03
摘要： An ANR circuit incorporates a signal processing topology to support the provision of feedback-based ANR, feedforward-based ANR and pass-through audio in which the topology incorporates a branch in which feedback anti-noise sounds are generated from feedback reference sounds received from a feedback microphone, a branch in which feedforward anti-noise sounds are generated from feedforward reference sounds, and a branch in which modified pass-through audio sounds are generated from pass-through audio sounds received from an audio source, wherein these three branches are combined to combine the generated sounds of each branch into a single output by which an acoustic driver is driven.
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公开(公告)号：EP2425421B1
公开(公告)日：2013-06-12
申请号：EP10715082.3
申请日：2010-04-26
申请人： Bose Corporation
IPC分类号： G10K11/178
CPC分类号： H04B1/202 , G10K11/178 , G10K2210/108 , G10K2210/1081 , G10K2210/3026 , G10K2210/30391 , G10K2210/3056 , G10K2210/3214 , G10K2210/503 , H04R1/1016 , H04R1/2803 , H04R2460/11
摘要： Method of supporting talk-through audio in a personal ANR device providing feedforward-based ANR within a casing of the personal ANR device, comprising: configuring a first plurality of filters in a feedforward-based ANR pathway of a first ANR circuit with a first set of filter coefficients to provide feedforward-based ANR employing a first feedforward microphone coupled to the first ANR circuit to detect environmental sounds in an environment external to the casing and a first acoustic driver coupled to the first ANR circuit to acoustically output feedforward anti-noise sounds to reduce the environmental sounds within the casing; awaiting receipt of an indication of a manually-operable control being operated to enable talk-through; and in response, operating said filters to reduce the degree of feedforward-based ANR provided by said filters to enable human speech sounds in the environment external to the casing to be conveyed from said microphone to the first acoustic driver with less attenuation caused by the provision of feedforward-based ANR by said filters.
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公开(公告)号：EP2425423A2
公开(公告)日：2012-03-07
申请号：EP10715645.7
申请日：2010-04-26
申请人： Bose Corporation
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K2210/3028 , G10K2210/3044 , G10K2210/3051
摘要： Method of supporting ANR analysis performed by a processing device coupled to an ANR circuit performing at least one of feedback-based and feedforward-based ANR in at least one earpiece of a personal ANR device, comprising: downsampling digital data representing reference sounds detected by at least one of a feedback microphone disposed within the at least one earpiece and a feedforward microphone disposed on a portion of the personal ANR device to derive a downsampled form of the digital data; operating an interface of the ANR circuit that couples the ANR circuit to a bus to which the processing device is also coupled to transmit said downsampled form to the processing device as side-chain data; operating the processing device to employ the side-chain data as an input to the ANR analysis, routing said downsampled form through a filter to provide weighting to frequencies of reference sounds represented by said downsampled form prior to operating said interface to transmit said downsampled form as the side-chain data to the processing device.
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公开(公告)号：EP2425423B1
公开(公告)日：2013-04-17
申请号：EP10715645.7
申请日：2010-04-26
申请人： Bose Corporation
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K2210/3028 , G10K2210/3044 , G10K2210/3051
摘要： Method of supporting ANR analysis performed by a processing device coupled to an ANR circuit performing at least one of feedback-based and feedforward-based ANR in at least one earpiece of a personal ANR device, comprising: downsampling digital data representing reference sounds detected by at least one of a feedback microphone disposed within the at least one earpiece and a feedforward microphone disposed on a portion of the personal ANR device to derive a downsampled form of the digital data; operating an interface of the ANR circuit that couples the ANR circuit to a bus to which the processing device is also coupled to transmit said downsampled form to the processing device as side-chain data; operating the processing device to employ the side-chain data as an input to the ANR analysis, routing said downsampled form through a filter to provide weighting to frequencies of reference sounds represented by said downsampled form prior to operating said interface to transmit said downsampled form as the side-chain data to the processing device.
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公开(公告)号：EP2425422B1
公开(公告)日：2013-03-06
申请号：EP10715643.2
申请日：2010-04-26
申请人： Bose Corporation
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K2210/321 , G10K2210/3214
摘要： Method of enhancing the provision of feedforward-based ANR to both ears of a user of a personal ANR device having a first earpiece and a second earpiece, the method comprising: disposing a first feedforward microphone on the first earpiece; disposing a first acoustic driver within the first earpiece; disposing a second feedforward microphone on the second earpiece; disposing a second acoustic driver within the second earpiece; and employing both first feedforward reference sounds detected by the first feedforward microphone and second feedforward reference sounds detected by the second feedforward microphone in deriving both first feedforward anti-noise sounds to be acoustically output by the first acoustic driver and second feedforward anti-noise sounds to be acoustically output by the second acoustic driver.
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公开(公告)号：EP2425422A1
公开(公告)日：2012-03-07
申请号：EP10715643.2
申请日：2010-04-26
申请人： Bose Corporation
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K2210/321 , G10K2210/3214
摘要： Method of enhancing the provision of feedforward-based ANR to both ears of a user of a personal ANR device having a first earpiece and a second earpiece, the method comprising: disposing a first feedforward microphone on the first earpiece; disposing a first acoustic driver within the first earpiece; disposing a second feedforward microphone on the second earpiece; disposing a second acoustic driver within the second earpiece; and employing both first feedforward reference sounds detected by the first feedforward microphone and second feedforward reference sounds detected by the second feedforward microphone in deriving both first feedforward anti-noise sounds to be acoustically output by the first acoustic driver and second feedforward anti-noise sounds to be acoustically output by the second acoustic driver.
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