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1. 发明申请

US20180077278A1 SIGNAL PROCESSING DEVICE, NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM, SIGNAL PROCESSING METHOD, AND TELEPHONE APPARATUS 审中-公开
公开(公告)号：US20180077278A1
公开(公告)日：2018-03-15
申请号：US15617004
申请日：2017-06-08
申请人： Oki Electric Industry Co., Ltd.
发明人： Masaru FUJIEDA
IPC分类号： H04M3/00
CPC分类号： H04M3/002 , H04M9/08 , H04M2201/26
摘要： The signal processing device comprises the adaptive gain calculation unit configured to calculate and output the adaptive gain for processing the voice reception output signal, by utilizing at least the voice transmission input signal and the relative volume value indicating the predetermined relative sound volume ratio between the voice transmission input signal and the voice reception output signal; and the multiplication unit configured to calculate the voice reception output signal by multiplying the signal based on the voice reception input signal by the value based on the adaptive gain.

2. 发明授权

US09832582B2 Sound effect control method and apparatus 有权
公开(公告)号：US09832582B2
公开(公告)日：2017-11-28
申请号：US14901854
申请日：2014-09-01
申请人： Huawei Device Co., Ltd.
发明人： Fushun Chen , Jianwei Zhu , Yanhui Ren
IPC分类号： H04R29/00 , H04M1/60 , H04M3/00 , H04M9/08
CPC分类号： H04R29/004 , H04M1/6016 , H04M1/605 , H04M3/002 , H04M9/082 , H04R29/001 , H04R2430/01 , H04R2499/11
摘要： The present invention relates to a sound effect control method and apparatus, where the method includes: when a hands-free call is performed for a mobile terminal, detecting whether a hands-free call channel of the mobile terminal is shielded; and adjusting a configuration of the hands-free call channel of the mobile terminal and/or outputting an alarm signal to inform a user that the hands-free call channel is shielded, when it is detected that the hands-free call channel of the mobile terminal is shielded. According to the method, when a hands-free call is performed for a mobile terminal, whether a hands-free call channel of the mobile terminal is shielded is detected; when it is shielded, a configuration of the hands-free call channel of the mobile terminal is adjusted and/or an alarm signal is output, which can effectively improve quality of the hands-free call of the mobile terminal.

3. 发明授权

US09655001B2 Cross mute for native radio channels 有权
公开(公告)号：US09655001B2
公开(公告)日：2017-05-16
申请号：US14863649
申请日：2015-09-24
申请人： Cisco Technology, Inc.
发明人： Larry R. Metzger , Mark Conrad Gonsalves
IPC分类号： H04M1/00 , H04W28/04 , G10L21/0224 , H04L29/06 , H04M9/08 , G10L21/02 , H04M3/00 , G10L21/0208 , H04L12/64
CPC分类号： H04M3/002 , G10L21/02 , G10L21/0208 , G10L21/0224 , G10L2021/02082 , H04L63/061 , H04L2012/6491 , H04M9/08 , H04M9/082
摘要： In one implementation, systems and processes are provide for local cross muting between two or more dispatch consoles in a dispatch center. Sound is received from a microphone of a first console. The first console generates an outgoing media signal from the received sound and a supplementary outgoing data. The supplementary outgoing data may be an identification number for the first console or a duplicate media signal from the first console. The first console sends the outgoing media signal to a forwarding device and sends the supplementary outgoing signal to a second console.

4. 发明授权

US09648414B1 Systems and methods for controlling an audio signal path using redundant uninterruptable clock 有权
公开(公告)号：US09648414B1
公开(公告)日：2017-05-09
申请号：US14169946
申请日：2014-01-31
申请人： Cirrus Logic, Inc.
发明人： Tejasvi Das , Daniel John Allen
IPC分类号： H04R3/00 , H03G3/00 , G06F1/00 , H04M3/00 , H04R1/40 , H03K3/00 , G11B20/14 , G06F13/42 , G11B20/10
CPC分类号： H04R3/00 , G06F1/00 , G06F13/42 , G11B20/10527 , G11B20/1403 , H03G3/00 , H03G3/348 , H03K3/00 , H04M3/002 , H04R1/403 , H04R1/406 , Y02D10/14 , Y02D10/151
摘要： Responsive to the absence of a reference clock input signal to a clock conditioning circuit for generating a desired clock signal for synchronizing components of an audio signal path, a controller may cause the signal path to receive at the clock input a substitute clock signal in the absence of the reference clock input signal and may modify one or more parameters of the signal path in order to perform one or more of the following: (i) reduce the presence of audio artifacts in the output signal caused by the absence of the reference clock input signal; (ii) power down at least one component of the signal path to reduce power consumed by the signal path; (iii) continue to operate the signal path with the substitute clock signal; and (iv) transition the signal path to a mute condition or a zero volume condition.

5. 发明申请

US20170118326A1 Acoustic Echo Suppression 审中-公开
公开(公告)号：US20170118326A1
公开(公告)日：2017-04-27
申请号：US15361673
申请日：2016-11-28
申请人： Imagination Technologies Limited
发明人： Senthil Kumar Mani , Gandhi Namani
IPC分类号： H04M3/00 , H04M9/08
CPC分类号： H04M3/002 , H04B3/237 , H04M9/082
摘要： A controller for an echo suppressor configured to suppress a residual echo of a far-end signal included in a primary error signal, the controller adapted for operation with a primary adaptive filter configured to form a primary echo estimate of the far-end signal included in a microphone signal and an echo canceller configured to cancel that primary echo estimate from the microphone signal so as to form the primary error signal, the controller comprising: a secondary adaptive filter configured to form a secondary echo estimate of the far-end signal comprised in the microphone signal; and control logic operable in at least two modes selected in dependence on a convergence state of the primary adaptive filter, the control logic being configured to control activation of the echo suppressor in dependence one or more transient or steady state decision parameters.

6. 发明申请

US20170093460A1 ACOUSTIC ECHO PATH CHANGE DETECTION APPARATUS AND METHOD 有权
公开(公告)号：US20170093460A1
公开(公告)日：2017-03-30
申请号：US15272453
申请日：2016-09-22
申请人： Microsemi Semiconductor (U.S.) Inc.
发明人： Tanmay ZARGAR , Francis Chukwuemeka ONOCHIE
IPC分类号： H04B3/23 , H04M3/00 , G10L21/0224
CPC分类号： H04B3/23 , G10L21/0224 , G10L2021/02082 , H04M3/002 , H04M9/082
摘要： An acoustic echo path change detection apparatus constituted of: a time domain path change detection functionality arranged to: detect a change in a near-end acoustic echo path responsive to a time domain analysis of a near-end signal and a signal output by an acoustic echo canceller; and output an indication of the detected change, a frequency domain path change detection functionality arranged to: detect a change in the near-end acoustic echo path responsive to a frequency domain analysis of a far-end signal and the signal output by the acoustic echo canceller; and output an indication of the detected change, and a combination path change detection functionality arranged to: determine a first function of the output indication of the time domain path change detection functionality and the output indication of the frequency domain path change detection functionality; and output the determined first function.

7. 发明授权

US09491306B2 Signal processing control in an audio device 有权
标题翻译：音频设备中的信号处理控制
公开(公告)号：US09491306B2
公开(公告)日：2016-11-08
申请号：US13925555
申请日：2013-06-24
申请人： Broadcom Corporation
发明人： Taro Umezawa , Franck Beaucoup
IPC分类号： H04B1/38 , H04M9/08 , H04M3/00 , H04W24/02 , H04B1/10 , G10L21/0208
CPC分类号： H04M9/082 , G10L2021/02082 , H04B1/109 , H04M3/002 , H04W24/02
摘要： Methods, systems, and apparatus for controlling audio signal processing are described herein. In accordance with certain embodiments, a measure of coupling between at least one microphone and one speaker associated with an audio device is obtained. The measure of coupling may be used to control audio signal processing, such as sidetone generation and application of multi-channel decorrelation to the audio signal.
摘要翻译：本文描述了用于控制音频信号处理的方法，系统和装置。根据某些实施例，获得了与音频设备相关联的至少一个麦克风和一个扬声器之间的耦合度量。耦合的措施可以用于控制音频信号处理，例如侧音生成和对音频信号的多声道去相关的应用。

8. 发明授权

US09451078B2 Universal reconfigurable echo cancellation system 有权
标题翻译：通用可重构回波消除系统
公开(公告)号：US09451078B2
公开(公告)日：2016-09-20
申请号：US14398102
申请日：2013-04-30
申请人： Creative Technology Ltd
发明人： Jun Yang , Ian Minett , Robert Ridder , Steven Verity
IPC分类号： H04M1/38 , H04M3/00 , G10L21/0208 , H04B3/20 , H04M9/08 , H04B3/23
CPC分类号： H04M3/002 , G10L21/0208 , G10L2021/02082 , H04B3/20 , H04B3/23 , H04M9/082
摘要： A universal reconfigurable system and method are provided for reducing nonlinear echo and residual echo, and for echo leakage prevention in various time-varying and complex environments is proposed in this invention. According to one embodiment an echo cancellation system includes (1) an adaptive linear filter implemented in either time-domain or frequency-domain; (2) a nonlinear echo suppression; (3) echo leakage prevention; (4) direct current (DC), low frequency residual echo and noise reduction; (5) time-domain nonlinear processor (NLP) to reduce the residual echo; and (6) frequency-domain NLP to further reduce the residual echo. The echo cancellation system is universally applicable to acoustic echo cancellation (AEC) and/or electrical echo cancellation applications. In terms of AEC, this invention is reconfigurable for one or more microphones and/or one or more reference channels. The numbers of microphones and reference channels are user configurable.
摘要翻译：本发明提出了一种通用的可重构系统和方法，用于减少非线性回波和残余回波，并提供了各种时变和复杂环境中的回波泄漏防护。根据一个实施例，回波消除系统包括（1）在时域或频域中实现的自适应线性滤波器; （2）非线性回波抑制; （3）防止回声泄漏; （4）直流（DC），低频残余回波和降噪; （5）时域非线性处理器（NLP）来减少残余回波; 和（6）频域NLP进一步减少残留回波。回声消除系统普遍适用于声学回声消除（AEC）和/或电回声消除应用。在AEC方面，本发明可针对一个或多个麦克风和/或一个或多个参考通道进行重新配置。麦克风和参考通道的数量是用户可配置的。

9. 发明授权

US09432219B2 Voice energy collision back-off 有权
标题翻译：语音能量抵消
公开(公告)号：US09432219B2
公开(公告)日：2016-08-30
申请号：US13608311
申请日：2012-09-10
申请人： Paul V. Hubner , Joseph A. Hilburn , Scott J. Hoover
发明人： Paul V. Hubner , Joseph A. Hilburn , Scott J. Hoover
IPC分类号： H04L12/66 , H04L12/64 , H04M3/00 , H04M9/08 , H04M3/56
CPC分类号： H04L12/6418 , H04M3/002 , H04M3/568 , H04M9/08
摘要： A device may perform audio signal collision detection configured to receive first audio information from a first device and receive second audio information from a second device over a communications network. The device may be further configured to identify a collision of the first audio information and the second audio information, and to address the collision by adjusting at least one of an audio attenuation level and a communications latency of the second audio information responsive to identification of the collision, and store the operational parameters to an adjustment profile system.
摘要翻译：设备可以执行音频信号冲突检测，其被配置为从第一设备接收第一音频信息，并且通过通信网络从第二设备接收第二音频信息。该设备还可以被配置为识别第一音频信息和第二音频信息的冲突，并且通过响应于第二音频信息的识别来调整音频衰减水平和第二音频信息的通信延迟中的至少一个来解决冲突碰撞并将操作参数存储到调整轮廓系统中。

10. 发明申请

US20160165059A1 MOBILE DEVICE AUDIO TUNING 审中-公开
标题翻译：移动设备音频调谐
公开(公告)号：US20160165059A1
公开(公告)日：2016-06-09
申请号：US14562595
申请日：2014-12-05
申请人： Facebook, Inc.
发明人： Hongyang Deng , Parama Jyothi Reddappagari
IPC分类号： H04M7/00 , H04M3/00 , H04W28/02 , H04L12/24
CPC分类号： H04M7/0072 , H04L41/16 , H04L41/5025 , H04L41/5087 , H04L47/26 , H04L47/365 , H04M3/002 , H04M7/0081 , H04W28/0215 , H04W28/0226
摘要： Various of the disclosed embodiments improve encoding during a network call, such as a Voice Over Internet Protocol (VOIP) connection, by correlating various contextual parameters from previous calls, with appropriate settings for a current call. For example, the system may take note of the model of cell phone used during a communication, the carrier, the presence of a WiFi connection, the user rating, the codecs employed, etc. During a subsequent call, the system may compare these past calling parameters with the current situation, and may select call settings (e.g., codec selections) based thereon. Machine learning methods may be applied using the past data to inform the selection of the settings for the present call.
摘要翻译：各种所公开的实施例通过将来自先前呼叫的各种语境参数与当前呼叫的适当设置相关联来改善网络呼叫期间的编码，例如因特网协议语音（VOIP）连接。例如，系统可以记录在通信期间使用的手机的型号，运营商，WiFi连接的存在，用户评级，所使用的编解码器等。在随后的呼叫期间，系统可以比较这些过去根据当前情况调用参数，并且可以基于此选择呼叫设置（例如，编解码器选择）。可以使用过去的数据来应用机器学习方法来通知当前呼叫的设置的选择。

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