-
1.发明授权Providing audio playback during a conference based on conference system source 有权根据会议系统源在会议期间提供了音频播放公开(公告)号：US08878891B2
公开(公告)日：2014-11-04
申请号：US13468172
申请日：2012-05-10
CPC分类号： H04N7/14 , H04R3/005 , H04R2201/401 , H04R2430/20 , H04S5/00
摘要： In various embodiments, a system may include a first conferencing system with a first speaker and a second speaker. The first conferencing system may be coupled to a second conferencing system and a third conferencing system. In some embodiments, audio from the second conferencing system may be reproduced through the first speaker, and audio from the third conferencing system may be reproduced through the second speaker. In some embodiments, audio from various participants at various conferencing systems may be reproduced on audio system components relative to the location of participants at the conferencing system. For example, audio from a first participant on the left side of a camera at a second conferencing system may be reproduced through left side speakers at the first conferencing system.
摘要翻译： 在各种实施例中，系统可以包括具有第一扬声器和第二扬声器的第一会议系统。 第一会议系统可以耦合到第二会议系统和第三会议系统。 在一些实施例中，可以通过第一扬声器再现来自第二会议系统的音频，并且可以通过第二扬声器再现来自第三会议系统的音频。 在一些实施例中，相对于会议系统上的参与者的位置，可以在音频系统组件上再现来自各种会议系统的各种参与者的音频。 例如，来自第二会议系统的照相机左侧的第一参与者的音频可以通过第一会议系统的左侧扬声器再现。
-
公开(公告)号：US07970150B2
公开(公告)日：2011-06-28
申请号：US11402197
申请日：2006-04-11
申请人： William V. Oxford
发明人： William V. Oxford
IPC分类号： H04R3/00
CPC分类号： H04R3/005 , H04R2225/41 , H04R2430/23
摘要： A communication system (e.g., a speakerphone) includes an array of microphones, a speaker, memory and a processor. The processor may be configured to perform acoustic echo cancellation, to track multiple talkers with highly directed beams, to design beams with nulls pointed at noise sources, to generate a 3D model of the physical environment, to compensate for the proximity effect, and to perform dereverberation of a talker's voice signal. The processor may also be configured to use a standard codec in non-standard ways. The processor may perform a virtual broadside scan on the microphone array, analyze the resulting amplitude envelope for acoustic source angles, examine each of the source angles with a directed beam, combine the beam outputs that show the characteristics of intelligence or speech.
摘要翻译： 通信系统（例如，扬声器电话）包括麦克风阵列，扬声器，存储器和处理器。 处理器可以被配置为执行声学回声消除，以跟踪具有高度定向的波束的多个讲话者，以设计指向噪声源的空值的波束，以产生物理环境的3D模型，以补偿邻近效应，并执行 谈话者声音信号的混乱。 处理器还可以被配置为以非标准方式使用标准编解码器。 处理器可以在麦克风阵列上执行虚拟的侧面扫描，分析所得到的声源角度的幅度包络，用定向波束检查每个源角度，组合显示智能或语音特征的波束输出。
-
公开(公告)号：US07720232B2
公开(公告)日：2010-05-18
申请号：US11251084
申请日：2005-10-14
申请人： William V. Oxford
发明人： William V. Oxford
CPC分类号： H04M9/082
摘要： A processor operates on samples of a digital output signal to determine samples of a digital correction signal. The output signal samples are directed to an output channel for transmission from a speaker. The digital correction signal samples are supplied to a first digital-to-analog converter for conversion into an analog correction signal. The subtraction circuit generates a difference between a first analog signal provided by a microphone and the analog correction signal. The analog correction signal is an estimate of a contribution to the first analog signal due to a direct path transmission between the speaker and the microphone. The processor also receives a digital input signal derived from the difference signal, and, performs acoustic echo cancellation on the digital input signal to obtain a resultant signal. The acoustic echo cancellation is configured to remove contributions to the digital input signal due to reflected path transmissions.
摘要翻译： 处理器对数字输出信号的采样进行操作以确定数字校正信号的采样。 输出信号样本被引导到用于从扬声器传输的输出通道。 数字校正信号样本被提供给第一数模转换器，用于转换成模拟校正信号。 减法电路产生由麦克风提供的第一模拟信号和模拟校正信号之间的差值。 模拟校正信号是由于扬声器和麦克风之间的直接路径传输而对第一模拟信号的贡献的估计。 处理器还接收从差分信号导出的数字输入信号，并对数字输入信号执行声学回波消除以获得合成信号。 声回波消除被配置为消除由于反射路径传输对数字输入信号的贡献。
-
4.发明申请METHOD AND SYSTEM FOR CONTROL OF CODE EXECUTION ON A GENERAL PURPOSE COMPUTING DEVICE AND CONTROL OF CODE EXECUTION IN A RECURSIVE SECURITY PROTOCOL 有权用于控制一般用途计算设备的代码执行的方法和系统以及在“重新安全协议”中对代码执行的控制公开(公告)号：US20100122088A1
公开(公告)日：2010-05-13
申请号：US12615843
申请日：2009-11-10
申请人： William V. Oxford
发明人： William V. Oxford
CPC分类号： H04L9/3236 , G06F21/10 , G06F21/121 , G06F21/51 , G06F2221/2107 , H04L9/14 , H04L9/3247 , H04L63/0428 , H04L63/0478 , H04L63/06 , H04L63/12 , H04L2209/60
摘要： Embodiments of systems and methods which provide highly specific control over the execution of general-purpose code block are disclosed. These embodiments may allow the exact circumstances under which a given code block is allowed to execute to be determined with specificity. Such a control mechanism may be coupled with embodiments of a data hiding system and method, based for example, on an ordered execution of a set of code segments implemented via recursive execution. When embodiments of these systems and methods are utilized together an unencumbered generality as well as a level of protection against attack that surpasses many other security systems may be obtained.
摘要翻译： 公开了对通用代码块的执行提供高度特定控制的系统和方法的实施例。 这些实施例可以允许以特定的方式确定允许给定代码块执行的确切情况。 这样的控制机制可以与数据隐藏系统和方法的实施例相结合，例如，基于通过递归执行实现的一组代码段的有序执行。 当这些系统和方法的实施例一起使用时，可以获得超过许多其他安全系统的不受阻害的通用性以及防止攻击的级别。
-
5.发明授权Directional microphone for computer visual display monitor and method for construction 失效计算机视觉显示监视器定向麦克风及其施工方法
公开(公告)号：US5946403A
公开(公告)日：1999-08-31
申请号：US832569
申请日：1997-04-02
CPC分类号： G06F1/1605 , H04R1/222 , H04R5/02
摘要： A directional microphone intended for use in a computer visual display monitor, and methods for construction of same. The integral directional microphone assembly comprises a cardioid electret microphone capsule retained therein by acoustically transparent foam. The microphone housing is mounted internally within a display monitor housing facing the user and adjacent to the top surface of the monitor housing. The microphone housing comprises a frontal opening and a plurality of nonfrontally facing openings which together maximally preserve sound pressure gradient applied to the microphone capsule, resulting in a hypercardioid spatial response.
摘要翻译： 旨在用于计算机视觉显示监视器的定向麦克风及其构造方法。 整体定向麦克风组件包括通过声透明泡沫保持在其中的心形驻极体麦克风胶囊。 麦克风壳体内部安装在面向使用者的显示监视器壳体内并且与监视器壳体的顶表面相邻。 麦克风壳体包括正面开口和多个非前向开口，这些开口一起最大程度地保持施加到麦克风胶囊的声压梯度，导致心脏超空心响应。
-
公开(公告)号：US5689534A
公开(公告)日：1997-11-18
申请号：US138753
申请日：1993-10-18
CPC分类号： H04H60/04 , H04L7/0331
摘要： The audio system having a master clock, a serial port clocked according to a serial clock from the audio system, a programmable audio functional circuitry programmable and operable at a plurality of sample rates, and a rate selection control logic which sense a ratio between the serial clock and the master clock. The serial clock is derived from the master clock. The rate selection control logic reprograms the audio functional circuitry based on the ratio, to operate at one of the plurality of sample rates in response to a change in the clock rate of the serial clock, such that the audio functional circuitry operates at another of the plurality of sample rates.
摘要翻译： 音频系统具有主时钟，根据来自音频系统的串行时钟计时的串行端口，可编程并可以多个采样率操作的可编程音频功能电路，以及速率选择控制逻辑，其感测串行 时钟和主时钟。 串行时钟源自主时钟。 速率选择控制逻辑基于该比率来重新编程音频功能电路，以响应于串行时钟的时钟速率的变化而以多个采样率中的一个采样率，以使得音频功能电路在另一个 多个采样率。
-
公开(公告)号：US08237770B2
公开(公告)日：2012-08-07
申请号：US11406071
申请日：2006-04-18
IPC分类号： H04N7/14
CPC分类号： H04N7/14 , H04R3/005 , H04R2201/401 , H04R2430/20 , H04S5/00
摘要： In various embodiments, a system may include a first conferencing system with a first speaker and a second speaker. The first conferencing system may be coupled to a second conferencing system and a third conferencing system. In some embodiments, audio from the second conferencing system may be reproduced through the first speaker, and audio from the third conferencing system may be reproduced through the second speaker. In some embodiments, audio from various participants at various conferencing systems may be reproduced on audio system components relative to the location of participants at the conferencing system. For example, audio from a first participant on the left side of a camera at a second conferencing system may be reproduced through left side speakers at the first conferencing system.
摘要翻译： 在各种实施例中，系统可以包括具有第一扬声器和第二扬声器的第一会议系统。 第一会议系统可以耦合到第二会议系统和第三会议系统。 在一些实施例中，可以通过第一扬声器再现来自第二会议系统的音频，并且可以通过第二扬声器再现来自第三会议系统的音频。 在一些实施例中，相对于会议系统上的参与者的位置，可以在音频系统组件上再现来自各种会议系统的各种参与者的音频。 例如，来自第二会议系统的照相机左侧的第一参与者的音频可以通过第一会议系统的左侧扬声器再现。
-
公开(公告)号：US07903137B2
公开(公告)日：2011-03-08
申请号：US11405684
申请日：2006-04-17
IPC分类号： H04N7/14
摘要： A system may be configured to: receive remote audio signals and corresponding spatial indicators from remote systems; generate output signals for local speakers based on the remote audio signals and the corresponding spatial indicators; supply a microphone input signal to a first echo canceller in a series of echo cancellers, where each echo canceller of the series corresponds to a position in a set of positions along a one-dimensional locus connecting the speakers; map each of the remote audio signals to a corresponding one of the positions based on the corresponding spatial indicator; for each position of the set of positions, combine any of the remote audio signals that map to that position in order to form a corresponding input signal for the corresponding echo canceller; transmit a resultant signal including at least an output of a last echo canceller of the series to the remote systems.
摘要翻译： 系统可以被配置为：从远程系统接收远程音频信号和对应的空间指示符; 基于远程音频信号和相应的空间指示器，为本地扬声器生成输出信号; 向一系列回波消除器中的第一回波消除器提供麦克风输入信号，其中该系列的每个回声消除器对应于沿连接扬声器的一维轨迹的一组位置中的位置; 基于对应的空间指示器将每个远程音频信号映射到相应的一个位置; 对于该组位置的每个位置，组合映射到该位置的任何远程音频信号，以形成相应的回声消除器的相应输入信号; 将包括该串联的最后一个回波消除器的至少输出的合成信号发送到远程系统。
-
公开(公告)号：US07720236B2
公开(公告)日：2010-05-18
申请号：US11405667
申请日：2006-04-14
申请人： William V. Oxford
发明人： William V. Oxford
CPC分类号： H04M1/6008 , H04M1/6033 , H04R1/403 , H04R1/406 , H04R3/005 , H04R3/02 , H04R27/00 , H04R29/007 , H04R2201/401 , H04R2201/403 , H04R2201/405 , H04R2203/12 , H04R2225/41 , H04R2227/003 , H04R2420/07 , H04R2430/20 , H04R2430/21 , H04R2430/23 , H04R2499/11
摘要： A system such as a speakerphone may include a processor, memory, a speaker and a microphone. The processor may be configured (via program instructions stored in the memory) to calibrate the speaker by: outputting a stimulus signal; receiving an input signal corresponding to the stimulus signal; computing a midrange sensitivity and a lowpass sensitivity for a transfer function derived from a spectrum of the input signal and a spectrum of the output signal; subtracting the midrange sensitivity from the lowpass sensitivity to obtain a speaker-related sensitivity; performing an iterative search for current parameters of a speaker model using the input signal spectrum, the stimulus signal spectrum and the speaker-related sensitivity; and updating averages of the speaker model parameters using the current parameter values. The stimulus signal may be transmitted during periods of silence in the external environment. The parameter averages may be used to perform echo cancellation.
摘要翻译： 诸如免提电话的系统可以包括处理器，存储器，扬声器和麦克风。 可以通过以下方式配置处理器（通过存储在存储器中的程序指令）来校准扬声器：输出刺激信号; 接收对应于所述刺激信号的输入信号; 计算从输入信号的频谱和输出信号的频谱导出的传递函数的中频灵敏度和低通灵敏度; 从低通灵敏度减去中频灵敏度，以获得与扬声器相关的灵敏度; 使用输入信号频谱，刺激信号频谱和与扬声器有关的灵敏度来对扬声器模型的当前参数进行迭代搜索; 并使用当前参数值更新说话者模型参数的平均值。 刺激信号可以在外部环境中的静音期间传输。 参数平均值可用于执行回声消除。
-
公开(公告)号：US07593539B2
公开(公告)日：2009-09-22
申请号：US11405668
申请日：2006-04-17
申请人： William V. Oxford
发明人： William V. Oxford
IPC分类号： H04R9/08
摘要： In various embodiments, a speakerphone may comprise multiple (e.g., 16) microphones placed in a circular array around a central speaker. Each microphone may be mounted to the speakerphone through a microphone support. The microphone support may be made of a flexible material and have various features designed to minimize interference to the microphone (e.g., from the speaker and/or vibrations external to the speakerphone). The centrally mounted speaker may be coupled to a stiff internal speaker enclosure. The speaker enclosure may be made of a stiff, heavy material (e.g., a dense plastic) to prevent the speaker vibrations from excessively vibrating the speakerphone enclosure (which may affect the microphones).
摘要翻译： 在各种实施例中，扬声器电话可以包括围绕中央扬声器放置在圆形阵列中的多个（例如，16个）麦克风。 每个麦克风可以通过麦克风支架安装到扬声器电话。 麦克风支架可以由柔性材料制成并且具有设计成使对麦克风的干扰最小化（例如，从扬声器和/或扬声器电话外部的振动）的各种特征。 中央安装的扬声器可以耦合到刚性的内部扬声器外壳。 扬声器外壳可以由硬的重的材料（例如致密的塑料）制成，以防止扬声器振动使扬声器电话机壳体（可能影响麦克风）过度振动。
-
-
-
-
-
-
-
-
-
搜索结果
40 条记录 (耗时 0.028 秒)
