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公开(公告)号：US20220247894A1
公开(公告)日：2022-08-04
申请号：US17727011
申请日：2022-04-22
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Ke Li , Erich Tisch , Joyce Rosenbaum , Magnus Hansson
Abstract: A camera includes a first microphone, a second microphone, one or more drains, and a processor. The processor determines a correlation metric between portions of audio signals obtained from the first and second microphones. The one or more drains drain water away from the first microphone, the second microphone, or both. The camera includes a memory to store the portions of the audio signals as portions of an output audio signal.
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公开(公告)号：US20180084215A1
公开(公告)日：2018-03-22
申请号：US15701426
申请日：2017-09-11
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Joyce Rosenbaum
CPC classification number: H04N5/607 , H04N5/225 , H04N5/232 , H04N5/23264 , H04R5/027 , H04R2203/12 , H04R2499/11 , H04S7/305 , H04S2400/15
Abstract: A camera system capable of capturing images of an event in a dynamic environment includes two microphones configured to capture stereo audio of the event. The microphones are on orthogonal surfaces of the camera system. Because the microphones are on orthogonal surfaces of the camera system, the camera body can impact the spatial response of the two recorded audio channels differently, leading to degraded stereo recreation if standard beam forming techniques are used. The camera system includes tuned beam forming techniques to generate multi-channel audio that more accurately recreates the stereo audio by compensating for the shape of the camera system and the orientation of microphones on the camera system. The tuned beam forming techniques include optimizing a set of beam forming parameters, as a function of frequency, based on the true spatial response of the recorded audio signals.
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公开(公告)号：US09872006B2
公开(公告)日：2018-01-16
申请号：US15395986
申请日：2016-12-30
Applicant: GoPro, Inc.
Inventor： Paul Beckmann , Erich Tisch , Zhinian Jing
IPC: H04N5/228 , H04N9/802 , G10L21/0216 , H04N9/79 , H04R3/00 , G10L21/0264
CPC classification number: H04N9/802 , G10L21/0216 , G10L21/0264 , G10L2021/02166 , H04N1/2125 , H04N9/7908 , H04R3/005 , H04R2499/11
Abstract: A camera system includes a first microphone, a second microphone, and a microphone controller. The first microphone and the second microphone are configured to capture audio over a time interval to produce a first captured audio signal and a second captured audio signal, respectively. The second captured audio signal is dampened relative to the first captured audio signal by a dampening factor. The microphone controller is configured to store the first captured audio signal in response to a determination that the first captured audio signal does not clip. In response to a determination that the first captured audio signal clips, the microphone controller is configured to identify a gain between the first captured audio signal and the second captured audio signal representative of the dampening factor, amplify the second captured audio signal based on the identified gain, and store the amplified second captured audio signal.
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公开(公告)号：US09706088B2
公开(公告)日：2017-07-11
申请号：US15083262
申请日：2016-03-28
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Erich Tisch , Ke Li , Paul Beckmann
CPC classification number: H04N5/2252 , G03B17/08 , H04R1/44 , H04R3/00 , H04R3/005 , H04R5/04 , H04R29/004 , H04R2410/05 , H04R2410/07 , H04R2499/11
Abstract: An audio capture system for a sports camera includes at least one “enhanced” microphone and at least one “reference” microphone. The enhanced microphone includes a drainage enhancement feature to enable water to drain from the microphone more quickly than the reference microphone. A microphone selection controller selects between the microphones based on a microphone selection algorithm to enable high quality in conditions where the sports camera transitions in and out of water during activities such as surfing, water skiing, swimming, or other wet environments.
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公开(公告)号：US10944936B2
公开(公告)日：2021-03-09
申请号：US16550566
申请日：2019-08-26
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Joyce Rosenbaum
Abstract: A camera system capable of capturing images of an event in a dynamic environment includes two microphones configured to capture stereo audio of the event. The microphones are on orthogonal surfaces of the camera system. Because the microphones are on orthogonal surfaces of the camera system, the camera body can impact the spatial response of the two recorded audio channels differently, leading to degraded stereo recreation if standard beam forming techniques are used. The camera system includes tuned beam forming techniques to generate multi-channel audio that more accurately recreates the stereo audio by compensating for the shape of the camera system and the orientation of microphones on the camera system. The tuned beam forming techniques include optimizing a set of beam forming parameters, as a function of frequency, based on the true spatial response of the recorded audio signals.
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Patent Agency Ranking
公开(公告)号：US10122956B2
公开(公告)日：2018-11-06
申请号：US15701426
申请日：2017-09-11
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Joyce Rosenbaum
Abstract: A camera system capable of capturing images of an event in a dynamic environment includes two microphones configured to capture stereo audio of the event. The microphones are on orthogonal surfaces of the camera system. Because the microphones are on orthogonal surfaces of the camera system, the camera body can impact the spatial response of the two recorded audio channels differently, leading to degraded stereo recreation if standard beam forming techniques are used. The camera system includes tuned beam forming techniques to generate multi-channel audio that more accurately recreates the stereo audio by compensating for the shape of the camera system and the orientation of microphones on the camera system. The tuned beam forming techniques include optimizing a set of beam forming parameters, as a function of frequency, based on the true spatial response of the recorded audio signals.
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公开(公告)号：US09858935B2
公开(公告)日：2018-01-02
申请号：US15383970
申请日：2016-12-19
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Scott Patrick Campbell
IPC: G10L19/00 , H04R3/00 , H04R5/04 , G10L19/008 , H04R1/40 , H04R3/04 , H04R3/12 , G10L21/0208 , G10L21/0216
CPC classification number: G10L19/008 , G10L19/018 , G10L21/0208 , G10L21/0216 , G10L2021/02166 , H04R1/406 , H04R3/005 , H04R3/04 , H04R3/12 , H04R5/04 , H04R2201/403 , H04R2203/12 , H04R2410/03 , H04R2410/07 , H04R2430/03 , H04R2430/20 , H04R2430/23
Abstract: An audio system encodes and decodes audio captured by a microphone array system in the presence of wind noise. The encoder encodes the audio signal in a way that includes beamformed audio signal and a “hidden” representation of a non-beamformed audio signal. The hidden signal is produced by modulating the low frequency signal to a high frequency above the audible range. A decoder can then either output the beamformed audio signal or can use the hidden signal to generate a reduced wind noise audio signal that includes the non-beamformed audio in the low frequency range.
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公开(公告)号：US20170339320A1
公开(公告)日：2017-11-23
申请号：US15674355
申请日：2017-08-10
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Ke Li , Erich Tisch , Joyce Rosenbaum , Magnus Hansson
CPC classification number: H04N5/2252 , G03B17/08 , H04R1/44 , H04R3/00 , H04R3/005 , H04R5/04 , H04R29/004 , H04R2410/05 , H04R2410/07 , H04R2499/11
Abstract: An audio capture system for a sports camera includes at least one “enhanced” microphone and at least one “reference” microphone. The enhanced microphone includes a drainage enhancement feature to enable water to drain from the microphone more quickly than the reference microphone. A microphone selection controller selects between the microphones based on a microphone selection algorithm to enable high quality in conditions where the sports camera transitions in and out of water during activities such as surfing, water skiing, swimming, or other wet environments.
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公开(公告)号：US09661195B2
公开(公告)日：2017-05-23
申请号：US15083264
申请日：2016-03-28
Applicant: GoPro, Inc.
Inventor： Zhinian Jing , Erich Tisch , Ke Li , Joyce Rosenbaum , Magnus Hansson
CPC classification number: H04N5/2252 , G03B17/08 , H04R1/44 , H04R3/00 , H04R3/005 , H04R5/04 , H04R29/004 , H04R2410/05 , H04R2410/07 , H04R2499/11
Abstract: An audio capture system for a sports camera includes at least one “enhanced” microphone and at least one “reference” microphone. The enhanced microphone includes a drainage enhancement feature to enable water to drain from the microphone more quickly than the reference microphone. A microphone selection controller selects between the microphones based on a microphone selection algorithm to enable high quality in conditions where the sports camera transitions in and out of water during activities such as surfing, water skiing, swimming, or other wet environments.
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公开(公告)号：US09571807B2
公开(公告)日：2017-02-14
申请号：US15140260
申请日：2016-04-27
Applicant: GoPro, Inc.
Inventor： Paul Beckmann , Erich Tisch , Zhinian Jing
IPC: H04N5/228 , H04N9/802 , H04N1/21 , G10L21/0216 , G10L21/0264 , H04N9/79 , H04R3/00
CPC classification number: H04N9/802 , G10L21/0216 , G10L21/0264 , G10L2021/02166 , H04N1/2125 , H04N9/7908 , H04R3/005 , H04R2499/11
Abstract: A camera system includes a first microphone, a second microphone, and a microphone controller. The first microphone and the second microphone are configured to capture audio over a time interval to produce a first captured audio signal and a second captured audio signal, respectively. The second captured audio signal is dampened relative to the first captured audio signal by a dampening factor. The microphone controller is configured to store the first captured audio signal in response to a determination that the first captured audio signal does not clip. In response to a determination that the first captured audio signal clips, the microphone controller is configured to identify a gain between the first captured audio signal and the second captured audio signal representative of the dampening factor, amplify the second captured audio signal based on the identified gain, and store the amplified second captured audio signal.
Abstract translation: 相机系统包括第一麦克风，第二麦克风和麦克风控制器。 第一麦克风和第二麦克风被配置为在一段时间间隔内捕获音频以分别产生第一捕获音频信号和第二捕获音频信号。 第二捕获的音频信号相对于第一捕获的音频信号被阻尼因子衰减。 麦克风控制器被配置为响应于确定第一捕获的音频信号不被剪切而存储第一捕获的音频信号。 响应于确定第一捕获的音频信号剪辑，麦克风控制器被配置为识别代表衰减因子的第一捕获音频信号和第二捕获音频信号之间的增益，基于所识别的音频信号放大第二捕获音频信号 增益并存储放大的第二捕获音频信号。
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