专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US5642464A Methods and apparatus for noise conditioning in digital speech compression systems using linear predictive coding 失效
标题翻译：使用线性预测编码的数字语音压缩系统中噪声调理的方法和装置
公开(公告)号：US5642464A
公开(公告)日：1997-06-24
申请号：US433116
申请日：1995-05-03
申请人： H.S. Peter Yue , Rafi Rabipour
发明人： H.S. Peter Yue , Rafi Rabipour
IPC分类号： G10L19/00 , G10L19/06 , G10L5/00
CPC分类号： G10L19/012 , G10L19/06
摘要： In methods and apparatus for processing a speech signals comprising a plurality of successive signal intervals, each signal interval containing no speech sounds is classified as a noise interval, and LPC coefficients are calculated for each noise interval based on the samples of that noise interval and on the samples of a plurality of preceding signal intervals. When noise intervals encoded using LPC coefficients calculated as described above are reconstructed, the subjectively annoying "swishing" or "waterfall" effects encountered in conventional LPC speech processing systems are reduced or eliminated.
摘要翻译：在用于处理包括多个连续信号间隔的语音信号的方法和装置中，不包含语音的每个信号间隔被分类为噪声间隔，并且基于该噪声间隔的采样对每个噪声间隔计算LPC系数，并且基于多个先前信号间隔的采样。当使用如上所述计算的LPC系数进行编码的噪声间隔被重构时，在常规的LPC语音处理系统中遇到的主观上令人讨厌的“扫荡”或“瀑布”效应被减少或消除。

32. 发明授权

US11277354B2 Dynamic adjustment of workload forecast 有权
公开(公告)号：US11277354B2
公开(公告)日：2022-03-15
申请号：US16769630
申请日：2017-12-14
申请人： Rafi Rabipour , Claes Göran Robert Edström
发明人： Rafi Rabipour , Claes Göran Robert Edström
IPC分类号： H04L12/927 , H04L12/24 , H04L12/911 , G06F9/50 , G06Q10/06 , H04L47/80 , H04L41/5003 , H04L47/74 , H04L47/78
摘要： The disclosure relates to a method, network node and service instance, the method being executed by a service provider, for optimizing resource allocation according to the needs of at least one client and according to an SLA between the client and the service provider. The method comprises obtaining a statistical behavior of a workload forecast function associated with a service of the client, obtaining a forecast value for a future workload from the workload forecast function associated with the service of the client, obtaining at least one service-level objective associated with the SLA between the client and the service provider, obtaining a modified forecast value based on the forecast value, the statistical behavior of the workload forecast function and service-level objective associated with the SLA, and adjusting resources allocated to the service based on the modified forecast thereby optimizing resource allocation for the at least one client.

33. 发明授权

US09081894B2 Non-instrusive network surveillance and characterization 有权
标题翻译：非网络监控和表征
公开(公告)号：US09081894B2
公开(公告)日：2015-07-14
申请号：US13483367
申请日：2012-05-30
申请人： Eva Finkelstein , Djordje Konforti , Rafi Rabipour
发明人： Eva Finkelstein , Djordje Konforti , Rafi Rabipour
IPC分类号： G06F11/00 , G06F11/36 , G06F11/30
CPC分类号： G06F11/3612 , G06F11/3027 , G06F11/3096 , G06F11/364 , G06F11/3644
摘要： In a system (20) handles plural communication channels (26), pre-configured instrumentation code (50) is loaded into a common program memory. The instrumentation code (50) is used to generate a surveillance element (70). The surveillance element (70) comprises multi-dimensional execution criteria and executable surveillance code configured to cause performance by a target processor unit of a surveillance element-specified surveillance action. The surveillance element (70) is executed by the target processor unit with respect to the respective subset of plural communication channels and permits continued transport of data over the plural communication channels.
摘要翻译：在系统（20）中，处理多个通信信道（26），将预先配置的检测码（50）加载到公共程序存储器中。仪器代码（50）用于产生监视元件（70）。监视元件（70）包括多维执行标准和被配置为使得目标处理器单元执行监视元件指定的监视动作的可执行监视代码。监视元件（70）由目标处理器单元相对于多个通信信道的相应子集执行，并允许在多个通信信道上继续传输数据。

34. 发明授权

US08355906B2 Method and apparatus for extending the bandwidth of a speech signal 有权
标题翻译：扩展语音信号带宽的方法和装置
公开(公告)号：US08355906B2
公开(公告)日：2013-01-15
申请号：US12785035
申请日：2010-05-21
申请人： Peter Kabal , Rafi Rabipour , Yasheng Qian
发明人： Peter Kabal , Rafi Rabipour , Yasheng Qian
IPC分类号： G10L21/00
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。

35. 发明授权

US08149698B1 Providing a schedule for active events to be processed by a processor 有权
标题翻译：为处理器处理的活动事件提供时间表
公开(公告)号：US08149698B1
公开(公告)日：2012-04-03
申请号：US11651427
申请日：2007-01-09
申请人： Chung Cheung Chu , Djordje Konforti , Rafi Rabipour , Christy Yep
发明人： Chung Cheung Chu , Djordje Konforti , Rafi Rabipour , Christy Yep
IPC分类号： G01R31/08 , H04L12/28
CPC分类号： H04W72/1257 , H04W88/14
摘要： A switch that interconnects networks provides a scheduling algorithm that determines a number of active events to be processed by a processor in the switch. The active events involve processing of bearer traffic. A schedule tailored to the number of active events is generated. In response to a change affecting the schedule, the schedule is modified. The active events are processed by the processor according to the modified schedule.
摘要翻译：互连网络的交换机提供调度算法，该算法确定要由交换机中的处理器处理的多个活动事件。活动事件涉及承载业务的处理。生成针对活动事件数量量身定制的日程表。为了响应影响时间表的更改，修改日程表。活动事件由处理器根据修改的时间表进行处理。

36. 发明申请

US20100104091A1 ENHANCED ECHO CANCELLATION 有权
标题翻译：增强ECHO CANCELLATION
公开(公告)号：US20100104091A1
公开(公告)日：2010-04-29
申请号：US12258723
申请日：2008-10-27
申请人： Peter Yue , Rafi Rabipour
发明人： Peter Yue , Rafi Rabipour
IPC分类号： H04M9/08 , H04B3/20
CPC分类号： H04B3/23 , H04B3/234
摘要： The present invention provides for echo cancellation circuitry and variable rate encoding circuitry to cooperate with one another to effectively provide comfort noise in an effective and efficient manner. The echo cancellation circuitry will use far-end signals to generate estimated echo signals, which correspond to the actual echo signals appearing in near-end signals. The estimated echo signals are essentially subtracted from the near-end signals in an effort to remove the actual echo signals from the near-end signals. The echo cancellation circuitry will monitor any residual echo signals in the resulting processed near-end signals and provide residual echo control signals that are indicative of whether the residual echo signals should be replaced with comfort noise. The residual echo control signals are used at least in part by the variable rate encoding circuitry to determine the encoding rate to use for encoding different portions of the processed near-end signals.
摘要翻译：本发明提供了回波消除电路和可变速率编码电路，以便以有效和有效的方式彼此协作以有效地提供舒适噪声。回波消除电路将使用远端信号来产生对应于近端信号中出现的实际回波信号的估计回波信号。估计的回波信号基本上从近端信号中减去，以努力去除近端信号的实际回波信号。回波消除电路将监测所得到的经处理的近端信号中的任何残留回波信号，并提供指示残留回波信号是否应被舒适噪声替代的残余回波控制信号。残余回波控制信号至少部分地由可变速率编码电路使用，以确定用于对经处理的近端信号的不同部分进行编码的编码速率。

37. 发明授权

US07076316B2 Method and apparatus for controlling an operative setting of a communications link 有权
公开(公告)号：US07076316B2
公开(公告)日：2006-07-11
申请号：US09859640
申请日：2001-05-18
申请人： Rafi Rabipour , Chung Cheung Chu , Paul Coverdale
发明人： Rafi Rabipour , Chung Cheung Chu , Paul Coverdale
IPC分类号： G06F17/00 , H04M1/24
CPC分类号： H04W88/181 , H04L29/06 , H04L29/06027 , H04L65/80
摘要： A method and apparatus for controlling an operative setting of a communications link is provided. The communications link is capable of acquiring a plurality of operative settings. Audio quality in the communications link under different operative settings is compared and an operative setting is selected at least in part on the basis of this comparison. A control signal is sent to at least one component in the communications link to cause the communications link to attempt to acquire the selected setting.

38. 发明授权

US07006456B2 Method and apparatus for packet-based media communication 有权
公开(公告)号：US07006456B2
公开(公告)日：2006-02-28
申请号：US09986498
申请日：2001-11-09
申请人： Rafi Rabipour , Paul Coverdale , Paxton Smith
发明人： Rafi Rabipour , Paul Coverdale , Paxton Smith
IPC分类号： H04L12/16 , H04M3/42
CPC分类号： H04L65/605 , H04L29/06 , H04L29/06027 , H04L65/103 , H04L65/104 , H04L65/4038 , H04L65/607 , H04W88/181
摘要： A conference bridge is provided for managing a conference between media signal sources generating media data packets conveying encoded media information and encoding type information. The media signal sources, in order to enter a conference, generate link messages including respective supported encoding types and transmit the link messages to the conference bridge. The conference bridge receives the link messages and processes them to derive a first common encoding type supported all media signal sources in the conference and a second encoding type supported a subset of media signal sources in the conference. The conference bridge generates link message reply signals conveying the first encoding type and the second encoding type the subset of media signal sources and conveying at least the first encoding type to the media signal sources other than the subset of all media signal sources. Each media signal source is responsive to the link message reply signal to render active at least the first encoding type and selectively render active the second encoding type.

39. 发明授权

US06363339B1 Dynamic vocoder selection for storing and forwarding voice signals 失效
标题翻译：用于存储和转发语音信号的动态声码器选择
公开(公告)号：US06363339B1
公开(公告)日：2002-03-26
申请号：US08948315
申请日：1997-10-10
申请人： Rafi Rabipour , Girish Patel
发明人： Rafi Rabipour , Girish Patel
IPC分类号： G10L1900
CPC分类号： H04W88/181 , H04M3/533 , H04M7/12 , H04M2207/18 , H04M2207/20
摘要： In recent years, the telecommunications industry has witnessed the proliferation of a variety of digital vocoders in order to meet bandwidth demands of different wireline and wireless communication systems. The rapid growth in the diversity of networks and the number of users of such networks is increasing the number of instances where two vocoders are placed in tandem to serve a single connection. Such arrangements of low bit-rate codecs can degrade the quality of the transmitted speech. To overcome this problem in the specific situation involving store-and-forward systems (e.g. voicemail), the invention provides a novel method and apparatus including a plurality of different vocoders that can be selectively invoked to process the voice signal so as to reduce signal degradation. Also, the apparatus has the capability to bypass the vocoder bank when exchanging data with a remote signal processor capable of accepting data frames in compressed format.
摘要翻译：近年来，电讯业目睹了各种数字声码器的扩散，以满足不同有线和无线通讯系统的带宽需求。网络的多样性的快速增长和这种网络的用户数量正在增加两个声码器串联放置以服务于单个连接的情况的数量。低比特率编解码器的这种布置可能会降低发送语音的质量。为了在涉及存储转发系统（例如语音邮件）的具体情况下克服这个问题，本发明提供了一种新颖的方法和装置，其包括可以选择性地调用多个不同的声码器来处理语音信号，以便降低信号劣化。此外，当与能够接受压缩格式的数据帧的远程信号处理器交换数据时，该装置具有绕过声码器组的能力。

40. 发明授权

US5995923A Method and apparatus for improving the voice quality of tandemed vocoders 失效
标题翻译：提高串联声码器语音质量的方法和装置
公开(公告)号：US5995923A
公开(公告)日：1999-11-30
申请号：US883353
申请日：1997-06-26
申请人： Paul Mermelstein , Rafi Rabipour , William Navarro , Paul Coverdale
发明人： Paul Mermelstein , Rafi Rabipour , William Navarro , Paul Coverdale
IPC分类号： G10L19/02 , G10L19/14 , H03M7/30 , H04W88/18 , H03M9/00
CPC分类号： G10L19/16 , H04W88/181
摘要： In recent years, the telecommunications industry has witnessed the proliferation of a variety of digital vocoders in order to meet bandwidth demands of different wireline and wireless communication systems. The rapid growth in the diversity of networks and the number of users of such networks is increasing the number of instances where two vocoders are placed in tandem to serve a single connection. Such arrangements of low bit-rate codecs can degrade the quality of the transmitted speech. To overcome this problem the invention provides a novel method and an apparatus for transmitting digitized voice signals in the wireless communications environment. The apparatus is capable of converting a compressed speech signal from one format to another format via an intermediate common format, thus avoiding the necessity to successively de-compress voice data to a PCM type digitization and then recompress the voice data.
摘要翻译：近年来，电讯业目睹了各种数字声码器的扩散，以满足不同有线和无线通讯系统的带宽需求。网络的多样性的快速增长和这种网络的用户数量正在增加两个声码器串联放置以服务于单个连接的情况的数量。低比特率编解码器的这种布置可能会降低发送语音的质量。为了克服这个问题，本发明提供了一种用于在无线通信环境中发送数字化语音信号的新颖方法和装置。该装置能够通过中间公共格式将压缩的语音信号从一种格式转换成另一格式，从而避免必须将语音数据连续解压缩到PCM型数字化，然后再重新压缩语音数据。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式