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1. 发明授权

US09332439B2 Coexistence of white space devices and wireless narrowband devices 有权
标题翻译：白色空间设备和无线窄带设备的共存
公开(公告)号：US09332439B2
公开(公告)日：2016-05-03
申请号：US12962676
申请日：2010-12-08
申请人： Ranveer Chandra , Thomas Moscibroda , George Nychis , Ivan Tashev , Paramvir Bahl
发明人： Ranveer Chandra , Thomas Moscibroda , George Nychis , Ivan Tashev , Paramvir Bahl
IPC分类号： H04B1/04 , H04W16/14 , H04W52/50
CPC分类号： H04W16/14 , H04R2410/00 , H04R2420/07 , H04W52/50
摘要： Architecture that enables wireless narrowband devices (e.g., wireless microphones) and white space devices to efficiently coexist on the same telecommunications channels, while not interfering with the usability of the wireless narrowband device. The architecture provides interference detection, strobe generation and detection and, power ramping and suppression (interference-free coexistence with spectrum efficiency). The architecture provides the ability of the white space device to learn about the presence of the microphone. This can be accomplished i using a geolocation database, reactively via a strober device, and/or proactively via the strober device. The strober device can be positioned close to the microphone receiver and signals the presence of a microphone to white space devices on demand. The strober device takes into consideration the microphone's characteristics as well as the relative signal strength from the microphone transmitter versus the white space device, in order to enable maximum use of the available white space spectrum.
摘要翻译：能够使无线窄带设备（例如，无线麦克风）和空白设备在相同的电信信道上有效共存的架构，同时不干扰无线窄带设备的可用性。该架构提供干扰检测，选通产生和检测以及功率斜坡抑制（与频谱效率无干扰共存）。该架构提供了白空间设备了解麦克风的存在的能力。这可以通过使用地理位置数据库，通过选通设备反应地和/或主动地通过选通设备来实现。选通设备可以靠近麦克风接收器定位，并根据需要将麦克风存在于空白设备。选通器件考虑到麦克风的特性以及麦克风发射器与白色空间器件的相对信号强度，以便最大限度地利用可用的空白光谱。

2. 发明授权

US09054764B2 Sensor array beamformer post-processor 有权
标题翻译：传感器阵列波束形成器后处理器
公开(公告)号：US09054764B2
公开(公告)日：2015-06-09
申请号：US13187235
申请日：2011-07-20
申请人： Ivan Tashev , Alejandro Acero
发明人： Ivan Tashev , Alejandro Acero
IPC分类号： H04R3/00 , H04B7/08
CPC分类号： H04B7/0854
摘要： A novel beamforming post-processor technique with enhanced noise suppression capability. The present beamforming post-processor technique is a non-linear post-processing technique for sensor arrays (e.g., microphone arrays) which improves the directivity and signal separation capabilities. The technique works in so-called instantaneous direction of arrival space, estimates the probability for sound coming from a given incident angle or look-up direction and applies a time-varying, gain based, spatio-temporal filter for suppressing sounds coming from directions other than the sound source direction, resulting in minimal artifacts and musical noise.
摘要翻译：一种具有增强噪声抑制能力的新型波束成形后处理器技术。本波束形成后处理器技术是用于传感器阵列（例如麦克风阵列）的非线性后处理技术，其改善了方向性和信号分离能力。该技术在所谓的瞬时到达空间方向上工作，估计来自给定入射角或查找方向的声音的概率，并且应用时间变化的基于增益的时空滤波器来抑制来自其他方向的声音比声源方向，导致最小的伪影和音乐噪音。

3. 发明授权

US08990071B2 Telephony service interaction management 有权
标题翻译：电话服务交互管理
公开(公告)号：US08990071B2
公开(公告)日：2015-03-24
申请号：US12749333
申请日：2010-03-29
申请人： Yun-Cheng Ju , Stefanie Tomko , Frank Liu , Ivan Tashev
发明人： Yun-Cheng Ju , Stefanie Tomko , Frank Liu , Ivan Tashev
IPC分类号： G10L19/00 , H04M1/725 , H04M1/50 , H04M3/493
CPC分类号： H04M1/72519 , H04M1/505 , H04M3/493 , H04M2201/40 , H04M2250/74
摘要： A method for managing an interaction of a calling party to a communication partner is provided. The method includes automatically determining if the communication partner expects DTMF input. The method also includes translating speech input to one or more DTMF tones and communicating the one or more DTMF tones to the communication partner, if the communication partner expects DTMF input.
摘要翻译：提供了一种用于管理主叫方与通信对方的交互的方法。该方法包括自动确定通信伙伴是否期望DTMF输入。如果通信伙伴期望DTMF输入，该方法还包括将语音输入转换成一个或多个DTMF音调并将一个或多个DTMF音通信给通信对方。

4. 发明授权

US08818002B2 Robust adaptive beamforming with enhanced noise suppression 有权
标题翻译：强大的自适应波束成形，增强噪声抑制
公开(公告)号：US08818002B2
公开(公告)日：2014-08-26
申请号：US13187618
申请日：2011-07-21
申请人： Ivan Tashev , Alejandro Acero , Byung-Jun Yoon
发明人： Ivan Tashev , Alejandro Acero , Byung-Jun Yoon
IPC分类号： H04B15/00 , G01S3/86 , H04R3/00 , H04B7/08
CPC分类号： G01S3/86 , H04B7/0854 , H04R3/005 , H04R2430/20
摘要： A novel adaptive beamforming technique with enhanced noise suppression capability. The technique incorporates the sound-source presence probability into an adaptive blocking matrix. In one embodiment the sound-source presence probability is estimated based on the instantaneous direction of arrival of the input signals and voice activity detection. The technique guarantees robustness to steering vector errors without imposing ad hoc constraints on the adaptive filter coefficients. It can provide good suppression performance for both directional interference signals as well as isotropic ambient noise.
摘要翻译：一种具有增强噪声抑制能力的新型自适应波束成形技术。该技术将声源存在概率纳入自适应阻塞矩阵。在一个实施例中，基于输入信号的瞬时到达方向和语音活动检测来估计声源存在概率。该技术保证对导向矢量误差的鲁棒性，而不会对自适应滤波器系数施加自组织约束。它可以为双向干扰信号以及各向同性环境噪声提供良好的抑制性能。

5. 发明申请

US20110178798A1 ADAPTIVE AMBIENT SOUND SUPPRESSION AND SPEECH TRACKING 有权
标题翻译：自适应声音抑制和语音跟踪
公开(公告)号：US20110178798A1
公开(公告)日：2011-07-21
申请号：US12690827
申请日：2010-01-20
申请人： Jason Flaks , Ivan Tashev , Duncan McKay , Xudong Ni , Robert Heitkamp , Wei Guo , John Tardif , Leo Shing , Michael Baseflug
发明人： Jason Flaks , Ivan Tashev , Duncan McKay , Xudong Ni , Robert Heitkamp , Wei Guo , John Tardif , Leo Shing , Michael Baseflug
IPC分类号： G10L21/02
CPC分类号： H04S3/008 , G10L21/0208 , G10L21/0272 , G10L2021/02085 , G10L2021/02166
摘要： A device for suppressing ambient sounds from speech received by a microphone array is provided. One embodiment of the device comprises a microphone array, a processor, an analog-to-digital converter, and memory comprising instructions stored therein that are executable by the processor. The instructions stored in the memory are configured to receive a plurality of digital sound signals, each digital sound signal based on an analog sound signal originating at the microphone array, receive a multi-channel speaker signal, generate a monophonic approximation signal of the multi-channel speaker signal, apply a linear acoustic echo canceller to suppress a first ambient sound portion of each digital sound signal, generate a combined directionally-adaptive sound signal from a combination of each digital sound signal by a combination of time-invariant and adaptive beamforming techniques, and apply one or more nonlinear noise suppression techniques to suppress a second ambient sound portion of the combined directionally-adaptive sound signal.
摘要翻译：提供了一种用于抑制由麦克风阵列接收的语音的环境声音的装置。该设备的一个实施例包括麦克风阵列，处理器，模数转换器和包含可由处理器执行的存储在其中的指令的存储器。存储在存储器中的指令被配置为接收多个数字声音信号，基于源自麦克风阵列的模拟声音信号的每个数字声音信号，接收多声道扬声器信号，产生多声道扬声器信号的单声道近似信号，应用线性声学回声消除器来抑制每个数字声音信号的第一环境声音部分，通过时不变和自适应波束成形技术的组合从每个数字声音信号的组合产生组合的定向自适应声音信号并且应用一个或多个非线性噪声抑制技术来抑制组合的定向自适应声音信号的第二环境声音部分。

6. 发明申请

US20080288219A1 SENSOR ARRAY BEAMFORMER POST-PROCESSOR 有权
标题翻译：传感器阵列后处理器
公开(公告)号：US20080288219A1
公开(公告)日：2008-11-20
申请号：US11750319
申请日：2007-05-17
申请人： Ivan Tashev , Alejandro Acero
发明人： Ivan Tashev , Alejandro Acero
IPC分类号： H04B15/00 , G06F15/00
CPC分类号： H04B7/0854
摘要： A novel beamforming post-processor technique with enhanced noise suppression capability. The present beam forming post-processor technique is a non-linear post-processing technique for sensor arrays (e.g., microphone arrays) which improves the directivity and signal separation capabilities. The technique works in so-called instantaneous direction of arrival space, estimates the probability for sound coming from a given incident angle or look-up direction and applies a time-varying, gain based, spatio-temporal filter for suppressing sounds coming from directions other than the sound source direction resulting in minimal artifacts and musical noise.
摘要翻译：一种具有增强噪声抑制能力的新型波束成形后处理器技术。本发明的波束形成后处理器技术是用于提高方向性和信号分离能力的传感器阵列（例如，麦克风阵列）的非线性后处理技术。该技术在所谓的瞬时到达空间方向上工作，估计来自给定入射角或查找方向的声音的概率，并且应用时间变化的基于增益的时空滤波器来抑制来自其他方向的声音比声源方向导致最小的伪像和音乐噪声。

7. 发明申请

US20080243497A1 STATIONARY-TONES INTERFERENCE CANCELLATION 有权
标题翻译：静息函数干扰消除
公开(公告)号：US20080243497A1
公开(公告)日：2008-10-02
申请号：US11692911
申请日：2007-03-28
申请人： Ivan Tashev , Henrique S. Malvar
发明人： Ivan Tashev , Henrique S. Malvar
IPC分类号： G10L19/00
CPC分类号： G10L21/0208 , G10L25/27
摘要： An “Interference Canceller” provides a computationally efficient real-time technique for removing stationary-tone interference from signals. Typical sources of stationary tone contamination of signals include noise from power wiring (i.e., 50/60 Hz or 400 Hz and their harmonics), frame or line frequencies from electronic devices, and noise from computer fans, hard disk drives, etc. In general, the Interference Canceller adaptively builds and updates a model of stationary tone interference in consecutive frames of an input signal. This adaptively updated model is then used to extrapolate and subtract noise from subsequent frames of the input signal to generate a “clean” output signal. This output signal exhibits significant attenuation of stationary tone interference without eliminating important portions of the underlying signal or distorting the underlying signal with artifacts such as musical noise or nonlinear distortions. The Interference Canceller is applicable for use either alone, or as pre-processor to conventional noise suppression.
摘要翻译： “干扰消除器”提供了一种用于从信号中消除静音噪声的计算效率实时技术。信号的固定音污染的典型来源包括来自电力布线（即，50/60 Hz或400 Hz及其谐波）的噪声，电子设备的帧频或线路频率，以及来自计算机风扇，硬盘驱动器等的噪声。干扰消除器在输入信号的连续帧中自适应地构建和更新固定音干扰模型。然后，使用这种自适应更新的模型来推断和减去来自输入信号的后续帧的噪声，以产生“干净的”输出信号。该输出信号表现出固定音干扰的显着衰减，而不消除底层信号的重要部分或者使诸如音乐噪声或非线性失真之类的假象使底层信号失真。干扰消除器适用于单独使用或作为常规噪声抑制的预处理器使用。

8. 发明授权

US07415117B2 System and method for beamforming using a microphone array 有权
标题翻译：使用麦克风阵列进行波束成形的系统和方法
公开(公告)号：US07415117B2
公开(公告)日：2008-08-19
申请号：US10792313
申请日：2004-03-02
申请人： Ivan Tashev , Henrique Malvar
发明人： Ivan Tashev , Henrique Malvar
IPC分类号： H04R3/00 , H04B15/00 , H04B3/00 , G01S3/80 , G06F15/00 , G10L19/14 , G10L21/00
CPC分类号： H04R3/005
摘要： The ability to combine multiple audio signals captured from the microphones in a microphone array is frequently used in beamforming systems. Typically, beamforming involves processing the output audio signals of the microphone array in such a way as to make the microphone array act as a highly directional microphone. In other words, beamforming provides a “listening beam” which points to a particular sound source while often filtering out other sounds. A “generic beamformer,” as described herein automatically designs a set of beams (i.e., beamforming) that cover a desired angular space range within a prescribed search area. Beam design is a function of microphone geometry and operational characteristics, and also of noise models of the environment around the microphone array. One advantage of the generic beamformer is that it is applicable to any microphone array geometry and microphone type.
摘要翻译：在波束成形系统中经常使用组合从麦克风阵列中的麦克风捕获的多个音频信号的能力。通常，波束成形涉及以这样的方式处理麦克风阵列的输出音频信号，使得麦克风阵列充当高度定向的麦克风。换句话说，波束成形提供指向特定声源的“收听波束”，同时经常滤除其他声音。如本文所述，“通用波束形成器”自动设计覆盖规定搜索区域内的期望角度空间范围的一组波束（即，波束形成）。光束设计是麦克风几何和操作特性以及麦克风阵列周围环境的噪声模型的功能。通用波束形成器的一个优点是它适用于任何麦克风阵列几何形状和麦克风类型。

9. 发明申请

US20080097688A1 ROUTE GENERATION BASED UPON ACTIVITY CRITERIA 审中-公开
标题翻译：基于活动标准的路由生成
公开(公告)号：US20080097688A1
公开(公告)日：2008-04-24
申请号：US11957219
申请日：2007-12-14
申请人： Ivan Tashev , Jeffrey Couckuyt , Neil Black , John Krumm , Ruston Panabaker , Michael Seltzer
发明人： Ivan Tashev , Jeffrey Couckuyt , Neil Black , John Krumm , Ruston Panabaker , Michael Seltzer
IPC分类号： G01C21/34
CPC分类号： G01C21/34
摘要： A route can be optimized according to various constraints, specifically towards non-travel constraints. A number of community activities can take place such that the activities impact traffic. Thus, a route can be produces that lowers an influence the activities have upon a route. Moreover, a route can be produced that improves signal strength, such as strength of a signal used to communicate with a cellular telephone. In addition, a route can be enhanced by taking into account weather conditions, including real-time weather in addition to weather predictions.
摘要翻译：可以根据各种限制来优化路线，特别针对非旅行限制。可以进行一些社区活动，使活动影响交通。因此，可以产生降低活动对路线的影响的路线。此外，可以产生改善信号强度的路由，例如用于与蜂窝电话通信的信号的强度。此外，除了天气预报之外，还可以考虑到天气条件，包括实时天气，来增强路线。

10. 发明申请

US20050175190A1 Self-descriptive microphone array 有权
标题翻译：自描述麦克风阵列
公开(公告)号：US20050175190A1
公开(公告)日：2005-08-11
申请号：US10775371
申请日：2004-02-09
申请人： Ivan Tashev , Ross Cutler , Henrique Malvar , Daniel Sisolak , John Unverferth
发明人： Ivan Tashev , Ross Cutler , Henrique Malvar , Daniel Sisolak , John Unverferth
IPC分类号： H04R1/02 , H04R3/00
CPC分类号： H04R3/005
摘要： A self-descriptive microphone array includes a microphone array memory, such as, for example a ROM, EEPROM, or other conventional memory, which contains a microphone array device description. This device description includes parametric information which defines operational characteristics and configuration of the microphone array. In further embodiments, the microphone array uses any of a variety of conventional wired or wireless computer interfaces, including serial, IEEE 1394, USB, Bluetooth™, etc., to connect to a computing device. Once connected, the microphone array provides its device description to the computing device. Sound processing software residing within the computing device is then automatically configured for optimally interacting with one or more analog or digital audio signals provided by the microphone array. In another embodiment, the microphone array performs integrated self calibration for automatically updating the device description. The self calibration is performed either upon connection to the computing device, or upon regular or user-specified intervals.
摘要翻译：自描述性麦克风阵列包括麦克风阵列存储器，例如ROM，EEPROM或其它包含麦克风阵列器件描述的常规存储器。该设备描述包括定义麦克风阵列的操作特性和配置的参数信息。在另外的实施例中，麦克风阵列使用包括串行IEEE 1394，USB，蓝牙TM等在内的各种常规有线或无线计算机接口中的任一者来连接到计算设备。一旦连接，麦克风阵列将其设备描述提供给计算设备。然后，驻留在计算设备内的声音处理软件被自动配置成与由麦克风阵列提供的一个或多个模拟或数字音频信号进行最佳的交互。在另一个实施例中，麦克风阵列执行集成自校准以自动更新设备描述。自校准在连接到计算设备或者按照常规或用户指定的间隔执行。

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