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1. 发明公开

US20240064455A1 SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD 审中-公开
公开(公告)号：US20240064455A1
公开(公告)日：2024-02-22
申请号：US18501569
申请日：2023-11-03
申请人： SONY GROUP CORPORATION
发明人： YASUNOBU MURATA , KOHEI ASADA , YUSHI YAMABE
IPC分类号： H04R1/10 , G10K11/178
CPC分类号： H04R1/1083 , G10K11/17821 , G10K11/17823 , G10K11/17827 , G10K11/1783 , G10K11/17854 , G10K11/17857 , G10K11/17873 , G10K11/17875 , G10K11/17885 , H04R1/1041 , G10K2210/1081 , G10K2210/3014 , G10K2210/3016 , H04R2430/03
摘要： Disclosed is a signal processing apparatus including a surrounding sound signal acquisition unit, a NC (Noise Canceling) signal generation part, a cooped-up feeling elimination signal generation part, and an addition part. The surrounding sound signal acquisition unit collects a surrounding sound to generate a surrounding sound signal. The NC signal generation part generates a noise canceling signal from the surrounding sound signal. The cooped-up feeling elimination signal generation part generates a cooped-up feeling elimination signal from the surrounding sound signal. The addition part adds together the generated noise canceling signal and the cooped-up feeling elimination signal at a prescribed ratio.

2. 发明授权

US11900909B2 System and method for providing a quiet zone 有权
公开(公告)号：US11900909B2
公开(公告)日：2024-02-13
申请号：US18091503
申请日：2022-12-30
申请人： Sound United, LLC
发明人： Bradley M. Starobin , Matthew Lyons , Stuart W. Lumsden , Michael DiTullo
IPC分类号： G10K11/178 , H04R27/00 , H04L12/28 , G08B19/00 , H04L12/46 , H04S7/00
CPC分类号： G10K11/17821 , G08B19/00 , G10K11/1783 , G10K11/17817 , G10K11/17823 , G10K11/17853 , G10K11/17857 , G10K11/17875 , G10K11/17881 , G10K11/17885 , H04L12/2832 , H04L12/4625 , H04R27/00 , H04S7/303 , H04L2012/2849 , H04R2227/003 , H04R2227/005 , H04S2400/13
摘要： A system and method for quieting unwanted sound. As a non-limiting example, various aspects of this disclosure provide a system and method, for example implemented in a premises-based or home audio system, for quieting unwanted sound at a particular location.

3. 发明公开

US20240034463A1 HELICOPTER ACTIVE NOISE SUPPRESSION DEVICE INTEGRATING SOUND ARRAY AND ON-PROPELLER CONTROL 审中-公开
公开(公告)号：US20240034463A1
公开(公告)日：2024-02-01
申请号：US18257610
申请日：2022-01-25
申请人： NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
发明人： Yongjie SHI , Taihang MA , Zhiyuan HU , Guohua XU , Yang LIU
IPC分类号： B64C27/00 , G10K11/178
CPC分类号： B64C27/001 , G10K11/17883 , G10K11/17875 , B64C2027/004 , B64C2220/00
摘要： A helicopter active noise suppression device integrating a sound array and on-propeller control, which relates to the technical field of helicopter noise reduction, includes an annular loudspeaker array, a plurality of force exciters, an error microphone, an Active Noise Cancellation (ANC) controller, a cockpit sensor, and an airborne computer. The annular loudspeaker array is arranged at a rotor hub and unsteady force exciters are arranged at each blade trailing edge to construct a sound field in an reversed phase to the sound wave of an original sound field with an ANC principle, thereby counteracting the noise and realizing the noise reduction of all-domain and all-type helicopter noise.

4. 发明公开

US20230252968A1 ACOUSTIC NOISE REDUCTION AUDIO SYSTEM HAVING TAP CONTROL 审中-公开
公开(公告)号：US20230252968A1
公开(公告)日：2023-08-10
申请号：US18298744
申请日：2023-04-11
申请人： Bose Corporation
发明人： Paul G. Yamkovoy
IPC分类号： G10K11/178 , H04R1/10 , G06F3/16
CPC分类号： G10K11/17823 , H04R1/1041 , H04R1/1083 , G06F3/165 , G10K11/1783 , G10K11/17821 , G10K11/17881 , G10K11/17875 , G10K2210/3028 , H04R2201/028 , G10K2210/1081 , G10K2210/3046
摘要： An acoustic noise reduction (ANR) headphone described herein has current detection circuitry that detects current consumed by an acoustic driver amplifier as a result of pressure changes due to a tapping of the headphone. Tapping may be performed to change an audio feature or operating mode of the audio system for the headphone. The current detection circuitry senses a characteristic of the current consumed by the acoustic driver amplifier that can be used to determine an occurrence of a tap event. Examples of a characteristic include an amplitude, waveform or duration of the sensed current. Advantageously, the ANR headphones avoid the need for control buttons to initiate the desired changes to the audio feature or operating mode.

5. 发明申请

US20180174569A1 RECEIVER CIRCUIT 审中-公开
公开(公告)号：US20180174569A1
公开(公告)日：2018-06-21
申请号：US15841917
申请日：2017-12-14
申请人： NXP B.V.
发明人： Temujin Gautama
IPC分类号： G10K11/178 , H04B1/10
CPC分类号： G10K11/17821 , G10K11/17875 , G10L21/0232 , G10L2021/02161 , H04B1/1027 , H04H20/22
摘要： A receiver circuit comprising a first-input-terminal configured to receive an analogue-input-signal, which is representative of audio-data; and a second-input-terminal configured to receive a digital-input-signal, which is representative of the same audio-data as the analogue-input-signal. The receiver circuit also includes a noise-estimator configured to determine a noise-signal that is representative of a difference between the analogue-input-signal and the digital-input-signal; and a de-noiser that is configured to determine a de-noised-signal by applying a de-noising algorithm to the analogue-input-signal based on the noise-signal.

6. 发明申请

US20170180840A1 ACOUSTIC NOISE REDUCTION AUDIO SYSTEM HAVING TAP CONTROL 有权
公开(公告)号：US20170180840A1
公开(公告)日：2017-06-22
申请号：US14973892
申请日：2015-12-18
申请人： Bose Corporation
发明人： Paul Yamkovoy
IPC分类号： H04R1/10 , H04R29/00
CPC分类号： H04R1/1041 , G10K11/17835 , G10K11/17875 , G10K11/17879 , G10K2210/1081 , G10K2210/30231 , H04R1/1083 , H04R3/007 , H04R29/001 , H04R2460/01
摘要： Acoustic noise reduction (ANR) headphones described herein have current detection circuitry that is used to detect current consumed by ANR circuitry as a result of pressure changes due to a tapping of a headphone. Tapping may be performed to change an audio feature or operating mode. The current detection circuitry senses a characteristic of the current that can be used to determine an occurrence of a tap event. Examples of a characteristic include an amplitude, waveform or duration of the sensed current. Advantageously, the ANR headphones avoid the need for control buttons to initiate the desired changes to the audio feature or operating mode. Error detection circuitry included in the ANR headphones can distinguish between a valid tap events and an occurrence of a different type of event that may otherwise be improperly be interpreted as a tap event.

7. 发明授权

US06940983B2 Resonator for active noise attenuation system 有权
标题翻译：谐振器用于主动噪声衰减系统
公开(公告)号：US06940983B2
公开(公告)日：2005-09-06
申请号：US09802592
申请日：2001-03-09
申请人： Philip Edward Arthur Stuart
发明人： Philip Edward Arthur Stuart
IPC分类号： G10K11/172 , G10K11/178 , H04B29/00
CPC分类号： G10K11/172 , F02M35/125 , F02M35/1261 , G10K11/17861 , G10K11/17875
摘要： An active noise attenuation system for an air induction assembly is operably connected to an engine that generates a low frequency noise having a noise profile defining a peak noise. The system has an air inlet duct housing with an inlet and an outlet connected to the engine. A resonator is supported by the housing and is positioned between a speaker assembly and the engine to attenuate the peak noise resulting in an attenuated low frequency engine noise. A microphone senses the attenuated low frequency engine noise and generates an attenuated low frequency engine noise signal. A controller receives and phase shifts the signal and sends the signal to the speaker to generate a sound field to cancel or reduce the attenuated low frequency engine noise signal.
摘要翻译：用于空气感应组件的有源噪声衰减系统可操作地连接到产生具有限定峰值噪声的噪声分布的低频噪声的发动机。该系统具有进气管壳体，其具有连接到发动机的入口和出口。谐振器由壳体支撑并且位于扬声器组件和发动机之间以衰减峰值噪声，导致衰减的低频发动机噪声。麦克风感测衰减的低频发动机噪声并产生衰减的低频发动机噪声信号。控制器接收并相移信号并将信号发送到扬声器以产生声场以消除或减少衰减的低频发动机噪声信号。

8. 发明公开

US20240304172A1 SYSTEM AND METHOD FOR ELIMINATING NOISE CANCELLATION ARTIFACTS FROM HEAD MOVEMENT 审中-公开
公开(公告)号：US20240304172A1
公开(公告)日：2024-09-12
申请号：US18117772
申请日：2023-03-06
申请人： Harman International Industries, Incorporated
发明人： Kevin J. BASTYR , Tao FENG
IPC分类号： G10K11/178
CPC分类号： G10K11/17825 , G10K11/17875 , G10K2210/1282
摘要： In at least one embodiment, an active noise cancellation (ANC) system is provided. The system includes at least one loudspeaker to project anti-noise sound in response to receiving a first anti-noise signal and at least one microphone to provide an error signal indicative of noise and the anti-noise sound. The system further includes a head tracker sensor to provide a first signal indicative of a position of a user's head and a first controllable filter programmed to modify a transfer function between the microphone and at least one remote microphone location to generate an estimated remote microphone error signal based at least on the error signal and the first signal. The system further includes a second controllable filter programmed to generate the first anti-noise signal to account for the position of the user's head at least based on the estimated remote microphone error signal.

9. 发明公开

US20240274151A1 PARTICULAR-SOUND DETECTOR AND METHOD, AND PROGRAM 审中-公开
公开(公告)号：US20240274151A1
公开(公告)日：2024-08-15
申请号：US18645857
申请日：2024-04-25
申请人： Sony Group Corporation
发明人： Yuki Yamamoto , Yuji Tokozume , Toru Chinen
IPC分类号： G10L25/51 , G06N3/04 , G10K11/178 , G10L25/30 , H04R1/04 , H04R1/40 , H04R3/00
CPC分类号： G10L25/51 , G06N3/04 , G10K11/17875 , G10L25/30 , H04R1/04 , H04R1/406 , H04R3/005 , G10K2210/1081 , G10K2210/3026
摘要： The present technology relates to a particular-sound detector and method, and a program that make it possible to improve the performance of detecting particular sounds.
The particular-sound detector includes a particular-sound detecting section that detects a particular sound on a basis of a plurality of audio signals obtained by collecting sounds by a plurality of microphones provided to a wearable device. In addition, the plurality of the microphones includes two microphones that are equidistant at least from a sound source of the particular sound, and one microphone arranged at a predetermined position. The present technology can be applied to headphones.

10. 发明授权

US12014718B2 Feedback noise reduction method and system, and earphone 有权
公开(公告)号：US12014718B2
公开(公告)日：2024-06-18
申请号：US17442226
申请日：2019-07-26
申请人： GOERTEK INC.
发明人： Ruohui Wang , Kai Yu , Kai Wang
IPC分类号： G10K11/178 , H04R1/10
CPC分类号： G10K11/17854 , G10K11/17825 , G10K11/17875 , H04R1/1083 , G10K2210/1081 , G10K2210/3026 , G10K2210/3028 , H04R2460/01
摘要： A feedback noise reduction method, a feedback noise reduction system, and an earphone are provided. In the method, a channel morphological parameter of an acoustic channel between a microphone and a speaker in a feedback noise reduction system is detected; the feedback noise reduction system is switched from using a first noise reduction filter to using a second noise reduction filter in a case that it is determined that the acoustic channel is in an interfered state based on the channel morphological parameter; and a noise reduction signal is generated by using the second noise reduction filter to cancel a noise signal received by the feedback noise reduction system. A frequency response of the second noise reduction filter in a predetermined frequency band is less than a frequency response of the first noise reduction filter in the predetermined frequency band.

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