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公开(公告)号：US08681784B2
公开(公告)日：2014-03-25
申请号：US11562363
申请日：2006-11-21
CPC分类号： H04L29/06231 , H04L29/06482 , H04L65/102 , H04L65/601 , H04M7/1245 , H04M11/064 , H04M2203/657
摘要： In one embodiment, one or more gateways sniff the voice channel during the voice mode. If it is determined that V.8bis signals are being initiated, then the gateway breaks these exchanges by suppressing such signaling. Modem relay communications then are allowed to proceed. Briefly, the method and apparatus involve monitoring a call during a voice mode phase for an initiating signal representative of the defined signaling, the monitoring being performed by a local gateway and, if such an initiating signal is detected during the monitoring, then suppressing such detected signaling in such manner that the signaling does not reach the remote gateway. Preferably, the monitoring is for an initiating signal characterized by a dual tone of defined frequency and duration of approximately 1375 Hz and 2002 Hz for a duration of approximately 400 ms or 285 ms, in agreement with the ITU-T Recommendation V.8bis (standard) adopted by the International Telecommunication Union. Monitoring is continued at least until an answer back from an answering station is received by the gateway. When the suppression succeeds and the remote (non-initiating gateway that may be awaiting such an initiating signal halts any further V.8bis transaction attempts, the local gateway initiates a modem relay session of operation with the remote gateway.
摘要翻译： 在一个实施例中，一个或多个网关在语音模式期间嗅探语音信道。 如果确定V.8bis信号正在启动，则网关通过抑制这种信令来中断这些交换。 然后允许调制解调器中继通信继续。 简而言之，该方法和装置涉及在代表定义的信令的启动信号的语音模式阶段期间监视呼叫，监视由本地网关执行，并且如果在监视期间检测到这样的启动信号，则抑制这种检测到的 信令以信令不到达远程网关的方式。 优选地，监视是针对起始信号，其特征在于具有大约1375Hz和2002Hz的定义的频率和持续时间的双音调，持续时间为大约400ms或285ms，与ITU-T建议V.8bis（标准）一致 ）国际电信联盟通过。 至少继续进行监控，直到网关收到来自应答站的应答。 当抑制成功并且可能正在等待这样的发起信号的远程（非发起网关停止任何进一步的V.8bis事务尝试）时，本地网关发起与远程网关的调制解调器中继操作会话。
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公开(公告)号：US20070121857A1
公开(公告)日：2007-05-31
申请号：US11562363
申请日：2006-11-21
申请人： Mehryar Garakani , Herbert Wildfeuer , Gavin Jin , Chieh-Wen Tsai
发明人： Mehryar Garakani , Herbert Wildfeuer , Gavin Jin , Chieh-Wen Tsai
CPC分类号： H04L29/06231 , H04L29/06482 , H04L65/102 , H04L65/601 , H04M7/1245 , H04M11/064 , H04M2203/657
摘要： In one embodiment, one or more gateways sniff the voice channel during the voice mode. If it is determined that V.8bis signals are being initiated, then the gateway breaks these exchanges by suppressing such signaling, thereby avoiding the above-described detrimental effects. Modem relay communications then are allowed to proceed. Briefly, the method and apparatus involve monitoring a call during a voice mode phase for an initiating signal representative of the defined signaling, the monitoring being performed by a local gateway and, if such an initiating signal is detected during the monitoring, then suppressing such detected signaling in such manner that the signaling does not reach the remote gateway. Preferably, the monitoring is for an initiating signal characterized by a dual tone of defined frequency and duration of approximately 1375 Hz and 2002 Hz for a duration of approximately 400 ms or 285 ms, in agreement with the ITU-T Recommendation V.8bis (standard) adopted by the International Telecommunication Union. Monitoring is continued at least until an answer back from an answering station is received by the gateway. When the suppression succeeds and the remote (non-initiating gateway that may be awaiting such an initiating signal halts any further V.8bis transaction attempts, the local gateway initiates a modem relay session of operation with the remote gateway.
摘要翻译： 在一个实施例中，一个或多个网关在语音模式期间嗅探语音信道。 如果确定V.8bis信号正被启动，则网关通过抑制这种信令来破坏这些交换，从而避免上述的不利影响。 然后允许调制解调器中继通信继续。 简而言之，该方法和装置涉及在代表定义的信令的启动信号的语音模式阶段期间监视呼叫，监视由本地网关执行，并且如果在监视期间检测到这样的启动信号，则抑制这种检测到的 信令以信令不到达远程网关的方式。 优选地，监视是针对起始信号，其特征在于具有大约1375Hz和2002Hz的定义的频率和持续时间的双音调，持续时间为大约400ms或285ms，与ITU-T建议V.8bis（标准）一致 ）国际电信联盟通过。 至少继续进行监控，直到网关收到来自应答站的应答。 当抑制成功并且可能正在等待这样的发起信号的远程（非发起网关停止任何进一步的V.8bis事务尝试）时，本地网关发起与远程网关的调制解调器中继操作会话。
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公开(公告)号：US07158543B1
公开(公告)日：2007-01-02
申请号：US10112367
申请日：2002-03-29
CPC分类号： H04L29/06231 , H04L29/06482 , H04L65/102 , H04L65/601 , H04M7/1245 , H04M11/064 , H04M2203/657
摘要： The invented method involves one or more gateways sniffing the voice channel during the voice mode. If it is determined that V.8bis signals are being initiated, then the gateway breaks these exchanges by suppressing such signaling, thereby avoiding the above-described detrimental effects. Modem relay communications then are allowed to proceed. Briefly, the method and apparatus involve monitoring a call during a voice mode phase for an initiating signal representative of the defined signaling, the monitoring being performed by a local gateway and, if such an initiating signal is detected during the monitoring, then suppressing such detected signaling in such manner that the signaling does not reach the remote gateway. Preferably, the monitoring is for an initiating signal characterized by a dual tone of defined frequency and duration of approximately 1375 Hz and 2002 Hz for a duration of approximately 400 ms or 285 ms, in agreement with the ITU-T Recommendation V.8bis (standard) adopted by the International Telecommunication Union. Monitoring is continued at least until an answer back from an answering station is received by the gateway. When the suppression succeeds and the remote (non-initiating gateway that may be awaiting such an initiating signal halts any further V.8bis transaction attempts, the local gateway initiates a modem relay session of operation with the remote gateway.
摘要翻译： 本发明的方法涉及在语音模式期间嗅探语音信道的一个或多个网关。 如果确定V.8bis信号正被启动，则网关通过抑制这种信令来破坏这些交换，从而避免上述的不利影响。 然后允许调制解调器中继通信进行。 简而言之，该方法和装置涉及在代表定义的信令的启动信号的语音模式阶段期间监视呼叫，监视由本地网关执行，并且如果在监视期间检测到这样的启动信号，则抑制这种检测到的 信令以信令不到达远程网关的方式。 优选地，监视是针对起始信号，其特征在于具有大约1375Hz和2002Hz的定义的频率和持续时间的双音调，持续时间为大约400ms或285ms，与ITU-T建议V.8bis（标准）一致 ）国际电信联盟通过。 至少继续进行监控，直到网关收到来自应答站的应答。 当抑制成功并且可能正在等待这样的发起信号的远程（非发起网关停止任何进一步的V.8bis事务尝试）时，本地网关发起与远程网关的调制解调器中继操作会话。
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4.发明授权Detection of ending of fax/modem communication between a telephone line and a network for switching router to compressed mode 失效检测电话线路和网络之间的传真/调制解调器通信的结束，以将路由器切换到压缩模式公开(公告)号：US06757301B1
公开(公告)日：2004-06-29
申请号：US09524799
申请日：2000-03-14
申请人： Chieh-Wen Tsai
发明人： Chieh-Wen Tsai
IPC分类号： H04J102
CPC分类号： G10L25/78
摘要： A device is provided for coupling between a telephone line and the network, to exchange data between them. The invention includes software for the device, and methods of operation. The device detects when, in a fax/modem type transmission, the transmitted data encode silence or voice. This determines the end of the fax/modem type transmission, and then the device is switched to a more economical voice mode. The device analyzes the energy of the encoded signals. The device makes a discrimination of the type of signals (fax/modem, silence or voice) based on the time patterns of the energy. For fax/modem the pattern is relatively uniform, for silence it is uniformly low, and for voice the pattern oscillates.
摘要翻译： 提供了用于在电话线路和网络之间耦合的装置，以在它们之间交换数据。 本发明包括用于该装置的软件和操作方法。 该设备检测传真/调制解调器类型传输中发送的数据是否编码静音或语音。 这确定传真/调制解调器类型传输的结束，然后设备切换到更经济的语音模式。 该器件分析编码信号的能量。 该设备基于能量的时间模式来区分信号类型（传真/调制解调器，静音或语音）。 对于传真/调制解调器，图案相对均匀，因为静音均匀低，而对于声音，图案振荡。
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公开(公告)号：US20050068904A1
公开(公告)日：2005-03-31
申请号：US10675369
申请日：2003-09-30
申请人： Herbert Wildfeuer , Chieh-Wen Tsai
发明人： Herbert Wildfeuer , Chieh-Wen Tsai
CPC分类号： H04Q3/0016 , H04Q2213/13166 , H04Q2213/1319 , H04Q2213/1324 , H04Q2213/13242
摘要： Managing a multicast conference call includes receiving signals at a local endpoint participating in a multicast conference call with remote endpoints. The signals include a local signal associated with the local endpoint and remote signals, where each remote signal is associated with a remote endpoint. Metric ratings are determined, where each metric rating reflects an importance of a signal. The metric ratings include a local metric rating corresponding to the local signal and remote metric ratings, where each remote metric rating corresponds to a remote signal. The local metric rating and the remote metric ratings are compared, and a subset of signals is selected according to the comparison.
摘要翻译： 管理多播会议呼叫包括在参与与远程端点的多播会议呼叫的本地端点处的接收信号。 信号包括与本地端点和远程信号相关联的本地信号，其中每个远程信号与远程端点相关联。 度量标准被确定，其中每个度量标准反映信号的重要性。 度量额定值包括对应于本地信号和远程度量额定值的本地度量评级，其中每个远程度量评级对应于远程信号。 比较本地度量标准和远程度量标准，并根据比较选择信号子集。
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公开(公告)号：US06393124B1
公开(公告)日：2002-05-21
申请号：US08964573
申请日：1997-11-05
申请人： Chieh-Wen Tsai , David Y. Wong
发明人： Chieh-Wen Tsai , David Y. Wong
IPC分类号： H04M100
CPC分类号： H04M1/573
摘要： Multiple characteristics of an signal are measured to determine the presence of an alert tone on an incoming signal to a customer premises equipment (CPE) in preparation for receipt of FSK modem signals. The apparatus, method, and article of manufacture discern the presence of an alert tone by measuring characteristics of the incoming signal. The alert tone is able to be discerned even under crosstalk conditions and over a wide dynamic range with the digital signal processing (DSP) method and apparatus described. Multiple characteristics of the signal are measured to determine the presence of the alert tone.
摘要翻译： 测量信号的多个特征以确定对于客户驻地设备（CPE）的输入信号的警报音的存在，以准备接收FSK调制解调器信号。 设备，方法和制品通过测量输入信号的特性来辨别警报音的存在。 通过数字信号处理（DSP）方法和设备，即使在串扰条件和宽动态范围内，也能够识别警报音。 测量信号的多个特征以确定警报音的存在。
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