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41. 发明授权

US6038452A Telecommunication network utilizing a quality of service protocol 失效
标题翻译：电信网络利用服务质量协议
公开(公告)号：US6038452A
公开(公告)日：2000-03-14
申请号：US921278
申请日：1997-08-29
申请人： Leo Strawczynski , Bill W. A. Gage , Rafi Rabipour
发明人： Leo Strawczynski , Bill W. A. Gage , Rafi Rabipour
IPC分类号： H04B7/005 , H04Q7/20
CPC分类号： H04W52/24
摘要： The present invention provides novel systems and methods for improving the voice quality of wireless-to-wireless calls or wireless-to-fixed terminal calls. This disclosure describes methods and apparatuses to determine and control the quality of service objectives in a telecommunication network involving at least one wireless terminal.
摘要翻译：本发明提供了用于改善无线到无线呼叫或无线到固定终端呼叫的语音质量的新型系统和方法。本公开描述了确定和控制涉及至少一个无线终端的电信网络中的服务质量目标的方法和装置。

42. 发明授权

US09277057B2 Mechanism for dynamic signaling of encoder capabilities 有权
标题翻译：编码器功能的动态信令机制
公开(公告)号：US09277057B2
公开(公告)日：2016-03-01
申请号：US13588445
申请日：2012-08-17
申请人： Rafi Rabipour , Chung-Cheung Chu , Daniel Cohn
发明人： Rafi Rabipour , Chung-Cheung Chu , Daniel Cohn
IPC分类号： H04L12/28 , H04M7/00 , H04W28/18 , G10L19/00 , H04J1/16 , H04W88/18
CPC分类号： H04M7/0072 , G10L19/00 , H04L65/1059 , H04L65/608 , H04W28/18 , H04W88/181
摘要： The present disclosure provides systems and methods for dynamically signaling encoder capabilities of vocoders of corresponding communication nodes. In one embodiment, during a call between a first communication node and a second communication node, a control node (e.g., base station controller or mobile switching center) for the first communication node sends capability information for a voice encoder of a vocoder of the first communication node to a control node for the second communication node. As a result, the second communication node is enabled to select and request a preferred encoder mode for the voice encoder of the vocoder of the first communication node based on the capabilities of the voice encoder of the vocoder of the first communication node.
摘要翻译：本公开提供用于动态地信令相应通信节点的声码器的编码器能力的系统和方法。在一个实施例中，在第一通信节点和第二通信节点之间的呼叫期间，用于第一通信节点的控制节点（例如，基站控制器或移动交换中心）发送用于第一通信节点的声码器的语音编码器的能力信息通信节点到第二通信节点的控制节点。结果，第二通信节点能够基于第一通信节点的声码器的语音编码器的能力来选择并请求第一通信节点的声码器的语音编码器的优选编码器模式。

43. 发明授权

US09191234B2 Enhanced communication bridge 有权
标题翻译：增强通信桥梁
公开(公告)号：US09191234B2
公开(公告)日：2015-11-17
申请号：US12420976
申请日：2009-04-09
申请人： Francois Blouin , Leigh Thorpe , Tim Rahrer , Tadeusz Drwiega , Rafi Rabipour
发明人： Francois Blouin , Leigh Thorpe , Tim Rahrer , Tadeusz Drwiega , Rafi Rabipour
IPC分类号： H04M3/42 , H04L12/46 , H04L29/06 , H04M3/22 , H04M7/12
CPC分类号： H04L12/462 , H04L65/1093 , H04L65/403 , H04L65/605 , H04M3/2236 , H04M7/1205
摘要： An enhanced communication bridge includes a context interface that enables the audio bridge to learn information about the type of Voice encoder, device, network connection, location, type of call (business vs. personal), identity and position of the individual, and other information about the context of the communication session itself as well as the context of each person joining the communication session. This context information is used to determine how quality of experience targets for the communication as a whole, as well as how each individual contribution should be uniquely processed to attempt to meet the quality of experience targets. Business factors may influence the decision as to the type of processing to be implemented on each of the signals provided by the participants. Corrective action may also be implemented by the bridge on the client network devices as well in the embodiment. The bridge may be centralized or distributed. A video bridge may be implemented as well.
摘要翻译：增强型通信桥包括上下文接口，使得音频桥可以了解关于语音编码器，设备，网络连接，位置，呼叫类型（业务对个人），个体的身份和位置以及其他信息的信息关于通信会话本身的上下文以及加入通信会话的每个人的上下文。该上下文信息用于确定整个通信的体验质量的质量以及如何独立处理每个个体贡献以尝试满足体验质量的目标。业务因素可能影响对参与者提供的每个信号执行的处理类型的决定。在实施例中也可以通过客户端网络设备上的桥来实现纠正动作。桥可以集中或分布。也可以实现视频桥。

44. 发明授权

US08254372B2 Data communication apparatus and method 有权
标题翻译：数据通信装置及方法
公开(公告)号：US08254372B2
公开(公告)日：2012-08-28
申请号：US10782754
申请日：2004-02-23
申请人： Rafi Rabipour , Chung Cheung Chu
发明人： Rafi Rabipour , Chung Cheung Chu
IPC分类号： H04L12/66 , H04L27/00 , G06F15/16 , G06F15/177 , G06F17/28 , G10L19/12
CPC分类号： H04W88/181 , H04L29/06 , H04L29/06027 , H04L65/103 , H04L65/104 , H04L65/1069 , H04L65/605 , H04L69/14 , H04L69/24 , H04L69/40
摘要： Communication apparatus having interfaces for exchanging data with first and second neighbors, a memory for storing codec information regarding the communication apparatus and a control entity operative to detect a message from the first neighbor, the first message being indicative of codec information regarding an originating entity. In response, the control entity assesses compatibility between the codec information regarding the originating entity and the codec information regarding the communication apparatus. If the assessment is positive, the control entity self-identifies the communication apparatus as a candidate for terminally supporting a subsequent codec-bypass negotiation with the originating entity. If the assessment is negative, the control entity self-identifies the communication apparatus as a candidate for non-terminally supporting such negotiation. The invention thus capitalizes on the realization that although an end-to-end codec-bypass connection may not be possible, it may nevertheless be possible to achieve bandwidth savings by establishing a codec-bypass connection along only a portion of the path.
摘要翻译：具有用于与第一和第二邻居交换数据的接口的通信设备，用于存储关于通信设备的编解码器信息的存储器和可操作以检测来自第一邻居的消息的控制实体，第一消息指示关于发起实体的编解码器信息。作为响应，控制实体评估关于发起实体的编解码器信息与关于通信设备的编解码器信息之间的兼容性。如果评估是肯定的，则控制实体将通信设备自身识别为用于终止支持与始发实体的后续编解码器 - 旁路协商的候选者。如果评估是否定的，则控制实体将通信设备自身识别为非终端支持该协商的候选者。因此，本发明实现了尽管端到端编解码器旁路连接可能是不可能的，但是仍然可以通过仅沿路径的一部分建立编解码器旁路连接来实现带宽节省。

45. 发明授权

US07817678B2 Method and apparatus for time alignment along a multi-node communication link 有权
标题翻译：用于沿着多节点通信链路进行时间对准的方法和装置
公开(公告)号：US07817678B2
公开(公告)日：2010-10-19
申请号：US11839861
申请日：2007-08-16
申请人： Chung Cheung Chu , Rafi Rabipour
发明人： Chung Cheung Chu , Rafi Rabipour
IPC分类号： H04J3/06
CPC分类号： H04L12/66 , H04N21/2335 , H04N21/23805 , H04N21/6181 , H04N21/64307 , H04N21/64322
摘要： A network entity, which comprises an input configured to receive from an upstream network entity a stream of first media data elements; an output configured to release towards a downstream network entity a stream of second media data elements; a processing engine configured to effect processing tasks on the first media data elements, thereby to generate the second media data elements, the processing tasks being effected in a set of processing intervals; and a control entity. The control entity is configured for receiving a request for a first phase adjustment from the downstream network entity; modifying the set of processing intervals in which are effected the processing tasks in an attempt to accommodate the first phase adjustment; determining a second phase adjustment based on arrival characteristics of the first media data elements and the modified set of processing intervals; and releasing towards the upstream network entity a request for the second phase adjustment.
摘要翻译：网络实体，其包括被配置为从上游网络实体接收第一媒体数据元素流的输入; 被配置为向下游网络实体释放第二媒体数据元素流的输出; 处理引擎被配置为对所述第一媒体数据元素执行处理任务，从而生成所述第二媒体数据元素，所述处理任务在一组处理间隔中进行; 和控制实体。控制实体被配置为从下游网络实体接收对第一阶段调整的请求; 修改处理间隔的集合，以试图适应第一阶段调整; 基于所述第一媒体数据元素的到达特性和所述经修改的处理间隔集确定第二相位调整; 向上游网络实体发布第二阶段调整请求。

46. 发明申请

US20070201485A1 Method and communication network components for managing media signal quality 有权
标题翻译：用于管理媒体信号质量的方法和通信网络组件
公开(公告)号：US20070201485A1
公开(公告)日：2007-08-30
申请号：US11360432
申请日：2006-02-24
申请人： Rafi Rabipour
发明人： Rafi Rabipour
IPC分类号： H04L12/56
CPC分类号： H04W28/24 , H04W88/12 , H04W88/16 , H04W92/02
摘要： A media signal quality manager for controlling one or more parameters of a network node through which passes a media signal. The audio signal quality manager has an input for receiving information conveying a characteristic of the media signal and a processor that generates performance control information in response to the characteristic of the media signal. The performance control information can be conveyed to the network node for allowing the network node to adjust at least one parameter of the media signal that can influence the quality of the media signal as perceived by a user.
摘要翻译：媒体信号质量管理器，用于控制通过媒体信号的网络节点的一个或多个参数。音频信号质量管理器具有用于接收传达媒体信号的特性的信息的输入端和响应媒体信号的特性产生性能控制信息的处理器。性能控制信息可以被传送到网络节点，以允许网络节点调整媒体信号的至少一个参数，该参数可以影响由用户感知的媒体信号的质量。

47. 发明申请

US20070067163A1 METHOD AND APPARATUS FOR EXTENDING THE BANDWIDTH OF A SPEECH SIGNAL 有权
标题翻译：用于扩展语音信号带宽的方法和装置
公开(公告)号：US20070067163A1
公开(公告)日：2007-03-22
申请号：US11469705
申请日：2006-09-01
申请人： Peter Kabal , Rafi Rabipour , Yasheng Qian
发明人： Peter Kabal , Rafi Rabipour , Yasheng Qian
IPC分类号： G10L11/04
CPC分类号： G10L21/038 , G10L25/18
摘要： A bandwidth extension module, and an associated method and computer-readable medium, suitable for use in artificially extending the bandwidth of a lowband speech signal. The bandwidth extension module comprises a band-pass filter configured to produce a band-pass signal from the lowband speech signal; at least one carrier frequency modulator, each carrier frequency modulator configured to pitch-synchronously modulate the band-pass signal about a respective carrier frequency, the at least one carrier frequency modulator collectively producing a highband speech signal component; a synthesis filter configured to determine a highband speech signal based on the highband speech signal component; and a summation module configured to combine the lowband speech signal with the highband speech signal to obtain a bandwidth-extended speech signal.
摘要翻译：带宽扩展模块以及适用于人为地扩展低带语音信号带宽的相关方法和计算机可读介质。带宽扩展模块包括被配置为从低频语音信号产生带通信号的带通滤波器; 至少一个载波频率调制器，每个载波频率调制器被配置为对相应的载波频率进行音调同步调制所述带通信号，所述至少一个载波频率调制器共同产生高频语音信号分量; 合成滤波器，被配置为基于所述高频语音信号分量来确定高频语音信号; 以及相加模块，被配置为将低频语音信号与高频语音信号组合以获得带宽扩展语音信号。

48. 发明授权

US06721707B1 Method and apparatus for controlling the transition of an audio converter between two operative modes in the presence of link impairments in a data communication channel 有权
标题翻译：用于在存在数据通信信道中的链路损伤的情况下控制音频转换器在两种操作模式之间的转换的方法和装置
公开(公告)号：US06721707B1
公开(公告)日：2004-04-13
申请号：US09469464
申请日：1999-12-22
申请人： Chung Cheung C. Chu , Rafi Rabipour , David G. Sloan
发明人： Chung Cheung C. Chu , Rafi Rabipour , David G. Sloan
IPC分类号： G10L1900
CPC分类号： H04L1/0019 , H04L1/0014
摘要： A signal processor for effecting the conversion of an audio data signal from one format to another. The signal processor has a signal converter that can selectively acquire two operative modes, namely a first operative mode and a second operative mode. In the first operative mode, the signal converter transforms the audio data signal from one format to another and releases the converted audio data signal from the output of the signal processor. In the second operative mode, the signal converter is disabled and permits passage of the audio data signal to the output without conversion. The signal processor has a control unit for controlling the transition of the signal converter between operative modes. The control unit enables the signal converter to pass from the first operative mode to the second operative mode when at least one operating condition has been satisfied. The control unit reacts to a link impairment occurring on the data communication channel to alter the operating condition to be satisfied to enable passage from the first operative mode to the second operative mode. In a specific example of implementation, the modification to the operating condition can be such as to “tighten” the requirements to be met for switching from the first to the second operative mode.
摘要翻译：用于实现将音频数据信号从一种格式转换成另一格式的信号处理器。信号处理器具有可以选择性地获取两种操作模式的信号转换器，即第一操作模式和第二操作模式。在第一操作模式中，信号转换器将音频数据信号从一种格式转换成另一格式，并从信号处理器的输出释放经转换的音频数据信号。在第二操作模式中，信号转换器被禁用并允许音频数据信号通过输出而不进行转换。信号处理器具有用于在操作模式之间控制信号转换器的转换的控制单元。当满足至少一个操作条件时，控制单元使得信号转换器能够从第一操作模式传递到第二操作模式。控制单元对数据通信通道发生的链路损害作出反应，以改变要满足的操作条件以使得能够从第一操作模式通过到第二操作模式。在实现的具体实例中，对操作条件的修改可以是“收紧”从第一操作模式切换到第二操作模式要满足的要求。

49. 发明授权

US5943645A Method and apparatus for computing measures of echo 失效
标题翻译：用于计算回波测量的方法和装置
公开(公告)号：US5943645A
公开(公告)日：1999-08-24
申请号：US847527
申请日：1997-04-24
申请人： Dominic Ho , Rafi Rabipour , Majid Foodeei
发明人： Dominic Ho , Rafi Rabipour , Majid Foodeei
IPC分类号： H04B3/20 , H04M9/08
CPC分类号： H04B3/20
摘要： In methods and apparatus for computing measures of echo of a far end signal in a near end signal, the evolution over time of frequency spectra of the near end and far end signals are compared to compute a measure of the echo. A far end spectrum of the far end signal and a near end spectrum of the near end signal are determined for each of a plurality of successive time intervals. A respective measure of correlation is determined for each of a plurality of spectrum pairs, each spectrum pair comprising a respective near end spectrum and a respective far end spectrum, the far end spectrum corresponding to a time interval which lags a time interval corresponding to the near end spectrum by a respective time lag. The measures of correlation are compared to determine a maximum measure of correlation which can be used as a measure of echo. The echo measure computation technique is particularly suitable for use in echo suppressors for digital cellular telephony systems, but has other applications.
摘要翻译：在近端信号中用于计算远端信号的回波测量的方法和装置中，比较近端和远端信号的频谱随着时间的演变，以计算回波的测量。为多个连续时间间隔中的每一个确定远端信号的远端频谱和近端信号的近端频谱。对于多个频谱对中的每一个确定相关的相关度量，每个频谱对包括相应的近端频谱和相应的远端频谱，远端频谱对应于滞后于与近距离对应的时间间隔的时间间隔结束频谱由相应的时间延迟。比较相关度的方法来确定可用作回波测量值的最大相关度量度。回波测量计算技术特别适用于数字蜂窝电话系统的回波抑制器，但具有其他应用。

50. 发明授权

US5893056A Methods and apparatus for generating noise signals from speech signals 失效
标题翻译：用于从语音信号产生噪声信号的方法和装置
公开(公告)号：US5893056A
公开(公告)日：1999-04-06
申请号：US839830
申请日：1997-04-17
申请人： Madeleine Saikaly , Rafi Rabipour
发明人： Madeleine Saikaly , Rafi Rabipour
IPC分类号： G10L19/00 , G10L19/06 , H04B3/20 , G10L9/00
CPC分类号： G10L19/012 , H04B3/20 , G10L19/06
摘要： In methods and apparatus for generating an LPC-encoded noise signal from an LPC-encoded speech signal, excitation parameters of the LPC-encoded speech signal for a current frame are randomized upon detection of speech in the current frame. For frames in which no speech is detected, LPC coefficients and frame energy for the current frame may be replaced with respective averages calculated over the current frame and a plurality of preceding frames. For frames in which speech is detected, LPC coefficients for the current frame may be replaced with respective averages of LPC coefficients used to replace LPC coefficients of an immediately previous frame. The comfort noise generation technique is particularly suitable for use in echo suppressors for digital cellular radio systems.
摘要翻译：在用于从LPC编码的语音信号产生LPC编码的噪声信号的方法和装置中，当前帧的LPC编码语音信号的激励参数在检测到语音时被随机化。对于其中没有检测到语音的帧，可以用当前帧和多个先前帧计算的相应平均值替换当前帧的LPC系数和帧能量。对于其中检测到语音的帧，可以用用于替换紧接在前的帧的LPC系数的LPC系数的相应平均值来替换当前帧的LPC系数。舒适噪声产生技术特别适用于数字蜂窝无线电系统的回波抑制器。

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