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1.发明申请SYSTEM AND METHOD FOR IMPROVING AUDIO QUALITY DURING WEB CONFERENCES OVER LOW-SPEED NETWORK CONNECTIONS 审中-公开在网络会议中通过低速网络连接改善音频质量的系统和方法公开(公告)号：US20150172355A1
公开(公告)日：2015-06-18
申请号：US14576855
申请日：2014-12-19
IPC分类号： H04L29/06
CPC分类号： H04L65/80 , H04L12/1818 , H04L65/403
摘要： A method that includes; (1) transmitting, at a first transmit time point, a first probe packet over a network connection to a conferencing server immediately before transmitting a data packet, the first probe packet arriving at the conferencing server at a first receive time point; (2) transmitting, at a second transmit time point, a second probe packet over the network connection to the conferencing server immediately after transmitting the data packet, the second probe packet arriving at the conferencing server at a second receive time point, the first and second probe packets being smaller than the data packet; (3) receiving information encoding a first difference between the first and second transmit time points and a second difference between the first and second receive time points; and (4) based on the first and second differences, modifying a transmission parameter associated with data packets to be transmitted thereafter to the conferencing server.
摘要翻译： 一种方法，包括 （1）在第一发送时间点，在发送数据分组之前，通过网络连接将第一探测分组发送到会议服务器，所述第一探测分组在第一接收时间点到达所述会议服务器; （2）在第二发送时间点，在发送数据分组之后立即通过网络连接将第二探测分组发送到会议服务器，第二探测分组在第二接收时间点到达会议服务器，第一和第 第二探测分组小于数据分组; （3）接收编码第一和第二发送时间点之间的第一差异的信息和第一和第二接收时间点之间的第二差值; 和（4）基于第一和第二差异，将与之后发送的数据分组相关联的传输参数修改为会议服务器。
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公开(公告)号：US09009040B2
公开(公告)日：2015-04-14
申请号：US12774054
申请日：2010-05-05
申请人： Todd C. Tatum , Michael A. Ramalho , Paul M. Dunn , Shantanu Sarkar , Tyrone T. Thorsen , Alan D. Gatzke
发明人： Todd C. Tatum , Michael A. Ramalho , Paul M. Dunn , Shantanu Sarkar , Tyrone T. Thorsen , Alan D. Gatzke
CPC分类号： G10L15/07 , G10L2015/0638
摘要： According to certain embodiments, training a transcription system includes accessing recorded voice data of a user from one or more sources. The recorded voice data comprises voice samples. A transcript of the recorded voice data is accessed. The transcript comprises text representing one or more words of each voice sample. The transcript and the recorded voice data are provided to a transcription system to generate a voice profile for the user. The voice profile comprises information used to convert a voice sample to corresponding text.
摘要翻译： 根据某些实施例，训练转录系统包括从一个或多个来源访问用户的记录语音数据。 记录的语音数据包括语音样本。 录制的语音数据的记录被访问。 成绩单包括表示每个语音样本的一个或多个单词的文本。 将转录本和记录的语音数据提供给转录系统以生成用户的语音简档。 语音简档包括用于将语音样本转换为相应文本的信息。
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3.发明授权Speaker-cluster dependent speaker recognition (speaker-type automated speech recognition) 有权扬声器群集相关扬声器识别（扬声器型自动语音识别）公开(公告)号：US08600750B2
公开(公告)日：2013-12-03
申请号：US12795959
申请日：2010-06-08
IPC分类号： G10L15/06
CPC分类号： G10L15/075 , G10L2015/0631
摘要： In an example embodiment, there is disclosed herein an automatic speech recognition (ASR) system that employs speaker clustering (or speaker type) for transcribing audio. A large corpus of audio with corresponding transcripts is analyzed to determine a plurality of speaker types (e.g., dialects). The ASR system is trained for each speaker type. Upon encountering a new user, the ASR system attempts to map the user to a speaker type. After the new user is mapped to a speaker type, the ASR employs the speaker type for transcribing audio from the new user.
摘要翻译： 在示例实施例中，这里公开了一种使用用于转录音频的扬声器聚类（或扬声器类型）的自动语音识别（ASR）系统。 分析具有对应的抄本的大的音频语料库以确定多个扬声器类型（例如，方言）。 针对每个扬声器类型训练ASR系统。 在遇到新用户时，ASR系统尝试将用户映射到扬声器类型。 在新用户映射到扬声器类型之后，ASR使用扬声器类型从新用户转录音频。
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公开(公告)号：US08428247B2
公开(公告)日：2013-04-23
申请号：US12326756
申请日：2008-12-02
申请人： James C. Frauenthal , Michael P. O'Brien , Michael A. Ramalho , Gary A. Skrabutenas , Shmuel Shaffer , Steven L. Christenson
发明人： James C. Frauenthal , Michael P. O'Brien , Michael A. Ramalho , Gary A. Skrabutenas , Shmuel Shaffer , Steven L. Christenson
IPC分类号： H04M9/08
摘要： In an example embodiment, an example method is provided for echo mitigation in a conference call. In this method, a test audio signal is transmitted to a conference endpoint and as a result, an echo associated with the transmittal of the test audio signal is received. One or more parameters of the echo are then identified and an echo mitigation process is selected from multiple echo mitigation processes based on the identified parameters. The selected echo mitigation process is then applied.
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公开(公告)号：US20130039497A1
公开(公告)日：2013-02-14
申请号：US13205368
申请日：2011-08-08
IPC分类号： H04R29/00
CPC分类号： G08B13/1672 , G08B13/19684 , G08B13/19697 , H04R1/02 , H04R1/2834 , H04R5/02 , H04R17/00 , H04R27/00 , H04R2205/022 , H04R2217/01 , H04R2227/003 , H04S5/00
摘要： A method is provided in one example embodiment that includes monitoring a sound pressure level with an endpoint (e.g., an Internet Protocol (IP) phone), which is configured for communications involving end users; analyzing the sound pressure level to detect a sound anomaly; and communicating the sound anomaly to a sound classification module. The endpoint can be configured to operate in a low-power mode during the monitoring of the sound pressure level. In certain instances, the sound classification module is hosted by the endpoint. In other implementations, the sound classification module is hosted in a cloud network.
摘要翻译： 在一个示例性实施例中提供了一种方法，该方法包括用端点（例如，因特网协议（IP）电话）来监测声压级，其被配置用于涉及终端用户的通信; 分析声压级检测声音异常; 并将声音异常传送到声音分类模块。 端点可以配置为在监听声压级时以低功耗模式运行。 在某些情况下，声音分类模块由端点托管。 在其他实现中，声音分类模块托管在云网络中。
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6.发明授权公开(公告)号：US07483701B2
公开(公告)日：2009-01-27
申请号：US11056843
申请日：2005-02-11
IPC分类号： H04Q7/20
摘要： A method for handling media in a make-before-break handoff between wireless networks is provided that includes communicating with a mobile station to facilitate a session handoff between two call legs of a session. The method also includes identifying a relevant frame of one of the legs, performing a cross correlation operation, generating a delay difference estimate between the two legs, and performing a level difference estimation for the two legs.
摘要翻译： 提供了一种用于在无线网络之间的断开切换之间处理媒体的方法，其包括与移动台进行通信以便于会话的两个呼叫支路之间的会话切换。 该方法还包括识别腿中的一条的相关帧，执行互相关操作，产生两条腿之间的延迟差估计，以及执行两条腿的电平差估计。
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7.发明授权公开(公告)号：US07408918B1
公开(公告)日：2008-08-05
申请号：US10268345
申请日：2002-10-07
申请人： Michael A. Ramalho
发明人： Michael A. Ramalho
CPC分类号： G10L19/00 , G10L19/0017
摘要： Methods and apparatus are provided for compressing delay sensitive signals. Frames including multiple samples of the delay sensitive signal are analyzed to determine characteristics associated with the frames, such as the range of quantization levels represented by the samples of the frames. The delay sensitive signal is then compressed by providing an anchor point is sent along with information for determining the variation of each sample from the anchor point.
摘要翻译： 提供了用于压缩延迟敏感信号的方法和装置。 分析包括延迟敏感信号的多个样本的帧以确定与帧相关联的特性，例如由帧的样本表示的量化级的范围。 然后通过提供锚定点与延迟敏感信号一起发送，以及用于确定每个样本与锚点的变化的信息。
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公开(公告)号：US11881317B2
公开(公告)日：2024-01-23
申请号：US17332502
申请日：2021-05-27
申请人： Michael A. Ramalho
发明人： Michael A Ramalho , Gail W. Karaman
摘要： Systems, computer-implemented methods, and non-transitory computer-readable media are provided for performing contact tracing using acoustic communications within or across administrative domains. A computer-implemented method may include obtaining information associated with one or more acoustic tokens from a first user device of a first user where the one or more acoustic tokens were broadcast from an emitter device in an acoustic volume via an audio communication channel, obtaining information associated with one or more acoustic tokens broadcast from the emitter device from a second user device of a second user, determining whether the second user was exposed to a disease associated with the first user in the acoustic volume based on analyzing the information associated with the acoustic tokens from the first user device and the information associated with the acoustic tokens from the second user device, and providing information indicating whether the second user was exposed to the disease.
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公开(公告)号：US08280052B2
公开(公告)日：2012-10-02
申请号：US12352697
申请日：2009-01-13
IPC分类号： H04N7/167
CPC分类号： H04L9/3247 , H04L2209/80
摘要： In one embodiment, a signal transmission authentication apparatus includes an input operable to receive a changing signal, a first extractor operable to extract first phoneme data from the received changing signal, a first generator including logic operable to generate first data representative of the extracted first phoneme data, a first output operable to communicate output data corresponding to the received changing signal and the first data from an associated transmitter to an associated receiver, a second extractor associated with the receiver including logic operable to extract second phoneme data from the received output data via the receiver and regenerate the first phoneme data from the received first data, a comparator including logic operable to generate a comparison signal in accordance with a comparison of the first and second phoneme data, and a second output operable to generate a signal corresponding to authenticity of the received changing signal in accordance with an output of the comparator.
摘要翻译： 在一个实施例中，信号传输认证设备包括可操作以接收改变信号的输入，可操作以从接收的改变信号中提取第一音素数据的第一提取器，第一生成器，其包括可操作以生成表示所提取的第一音素的第一数据的逻辑 数据，第一输出，其可操作以将对应于接收到的改变信号的输出数据和来自相关联的发射机的第一数据传送到相关联的接收机;与接收机相关联的第二提取器，包括可操作以从接收到的输出数据中提取第二音素数据的逻辑， 所述接收器从所接收的第一数据再生所述第一音素数据;比较器，包括可操作以根据所述第一和第二音素数据的比较产生比较信号的逻辑，以及第二输出，用于产生对应于 接收到的改变信号根据a 输出比较器。
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公开(公告)号：US08238548B2
公开(公告)日：2012-08-07
申请号：US12028594
申请日：2008-02-08
CPC分类号： H04M9/08
摘要： An echo canceller apparatus comprises a receive side attenuator coupled in a receive side signal path that is configured to couple from a conference call bridge to a caller; a convolution processor coupled to the receive side signal path at a convolution processor pick-off point; a double-talk detector coupled to the receive side signal path and to a sending side signal path that is configured to couple from the caller to the conference call bridge; and logic coupled to the receive side attenuator which when executed is responsive to a double-talk condition detected by the double-talk detector and operable to determine a level of echo canceled by the convolution processor, to determine an additional amount of attenuation to introduce, and to activate the receive side attenuator to introduce the additional attenuation.
摘要翻译： 一种回声消除装置包括耦合在接收侧信号路径中的接收侧衰减器，接收侧衰减器被配置为从会议呼叫桥耦合到呼叫者; 在卷积处理器拾取点处耦合到接收侧信号路径的卷积处理器; 耦合到接收侧信号路径的双向通话检测器和被配置为从呼叫者耦合到电话会议桥的发送侧信号路径; 以及耦合到所述接收侧衰减器的逻辑，其在执行时响应于所述双方通话检测器检测到的双方通话条件，并且可操作以确定由所述卷积处理器消除的回波电平，以确定要引入的附加的衰减量， 并激活接收侧衰减器以引入额外的衰减。
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