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1. 发明授权

US07113501B2 Synchronization of V42bis de/compression for V34/V42 modem relay method and apparatus 有权
公开(公告)号：US07113501B2
公开(公告)日：2006-09-26
申请号：US09728431
申请日：2000-11-30
申请人： Mehryar Khalili Garakani , Nathan R. Melhorn , Marcus Prewarski , Herbert M. Wildfeuer
发明人： Mehryar Khalili Garakani , Nathan R. Melhorn , Marcus Prewarski , Herbert M. Wildfeuer
IPC分类号： H04L12/66 , G01G31/08 , H04J3/06 , H04B1/38
CPC分类号： H04L5/1438 , H04L1/004
摘要： Method and apparatus for synchronizing two de/compression modems, e.g. V.42bis modems, in a voice frame network, the modems each being connected with a corresponding gateway to form a corresponding segment, are described. The method includes terminating the physical layer at either end of the corresponding gateways; negotiating at either gateway a physical layer and error-correcting data link layer with the corresponding modem; sending from either gateway to an associated modem in response to any poll command therefrom a not-ready message; signaling the other gateway when physical layer and error-correcting data link layer negotiations have been completed; and when each gateway has signaled the other that negotiations have been completed, halting the not-ready message-sending and sending instead a ready message to a corresponding modem, whereby synchronized compressed and decompressed data transmissions between the modems commences on a reliable transport. Preferably, thereafter, and upon occurrence of a destructive break condition or receipt at either gateway from a corresponding modem of an initiate data transfer command, such condition or receipt is relayed from a segment where it is detected to the other segment, thereby maintaining synchronization between the modems. Preferably, the messages and commands are compliant with the ITU-T V.42 protocol.

2. 发明授权

US07382730B2 Two-pass method and apparatus for achieving maximal data compression for a modem relay mode of operation in a voice frame network 有权
标题翻译：用于实现语音帧网络中的调制解调器中继操作模式的最大数据压缩的双程方法和装置
公开(公告)号：US07382730B2
公开(公告)日：2008-06-03
申请号：US09728430
申请日：2000-11-30
申请人： Mehryar Khalili Garakani , Nathan R. Melhorn , Marcus Prewarski
发明人： Mehryar Khalili Garakani , Nathan R. Melhorn , Marcus Prewarski
IPC分类号： H04L12/56
CPC分类号： H04L65/607 , H04L5/1438 , H04L29/06027 , H04L69/04
摘要： The present invention is a two-pass method and apparatus for achieving maximal data compression for a voice frame modem relay channel between two endpoint modems. The method includes transitioning the channel from a voice mode to a modem relay mode of operation; negotiating maximal compression parameters for either of two endpoint segments; communicating the same from one segment to the other; and then negotiating maximal end-to-end data compression parameters based upon the negotiated endpoint segment compression parameters. The end-to-end negotiation preferably involves re-negotiating one of the endpoint segments. The apparatus includes a dual first-pass negotiation mechanism for independently determining the maximal data compression capability of each segment; an end-to-end data compression capability determination mechanism for determining the maximal end-to-end data compression capability based upon the independently determined capability of each segment; and a second-pass negotiation mechanism for establishing the determined maximal end-to-end data compression capability for the channel.
摘要翻译：本发明是一种用于在两个端点调制解调器之间实现语音帧调制解调器中继信道的最大数据压缩的双程方法和装置。该方法包括将信道从语音模式转换到调制解调器中继操作模式; 为两个端点段之一协商最大压缩参数; 将其从一个段传递到另一个段; 然后基于协商的端点段压缩参数协商最大端到端数据压缩参数。端到端协商优选地涉及重新协商端点段之一。该装置包括用于独立地确定每个段的最大数据压缩能力的双重首次协商机制; 端到端数据压缩能力确定机制，用于基于每个段的独立确定的能力来确定最大端到端数据压缩能力; 以及用于为该信道建立所确定的最大端到端数据压缩能力的二次通过协商机制。

3. 发明授权

US07543063B1 Device to terminate a modem relay channel directly to an IP network 有权
标题翻译：将调制解调器中继信道直接终止到IP网络的设备
公开(公告)号：US07543063B1
公开(公告)日：2009-06-02
申请号：US10144154
申请日：2002-05-10
申请人： Vincent T. Grove , Herbert M. Wildfeuer , Mehryar Khalili Garakani , Bruce D. Juhlin , Scott Anthony Boynton
发明人： Vincent T. Grove , Herbert M. Wildfeuer , Mehryar Khalili Garakani , Bruce D. Juhlin , Scott Anthony Boynton
IPC分类号： G06F15/16
CPC分类号： H04L12/6418 , H04L12/2898 , H04L29/06027 , H04L65/1026 , H04L65/1036 , H04L2012/6424 , H04L2012/6481 , H04M7/122
摘要： A modem data aggregating gateway that supports modem relay functionality for permitting reliable switching of modem traffic between a VoIP network and a data packet switch Internet Protocol (IP) network, s.a. the Internet. The modem relay aggregator may receive modem data encapsulated as Voice over IP (VoIP) data packets in accordance with a Simple Reliable Protocol Transport (SRPT) mechanism. The packet data may be error corrected and/or decompressed before being repackaged for forwarding to the ultimate destination. In the event that the destination is itself an IP device, the modem relay aggregator may forward the packets directly over the IP network. As a result, if the destination of a modem call is an IP device (such as a Web site or other Internet-enabled device) the technique eliminates two points from a processing path in which digital signal processing (DSPs) would otherwise have to perform modem protocol processing. Otherwise, minimal modem reformatting can be performed at the aggregation point.
摘要翻译：一种调制解调器数据聚合网关，其支持调制解调器中继功能，以允许在VoIP网络和数据分组交换机因特网协议（IP）网络之间可靠地切换调制解调器流量。互联网。调制解调器中继聚合器可以根据简单可靠协议传输（SRPT）机制接收封装为IP语音（VoIP）数据分组的调制解调器数据。分组数据可以在被重新包装以转发到最终目的地之前被纠错和/或解压缩。在目的地本身是IP设备的情况下，调制解调器中继聚合器可以直接通过IP网络转发分组。结果，如果调制解调器呼叫的目的地是IP设备（诸如网站或其他启用互联网的设备），则该技术消除了数字信号处理（DSP）否则必须执行的处理路径的两个点调制解调器协议处理。否则，可以在聚合点执行最小的调制解调器重新格式化。

4. 发明授权

US08681784B2 Suppressing high speed modulation negotiation 有权
标题翻译：抑制高速调制协商
公开(公告)号：US08681784B2
公开(公告)日：2014-03-25
申请号：US11562363
申请日：2006-11-21
申请人： Mehryar Khalili Garakani , Herbert M. Wildfeuer , Gavin Jin , Chieh-Wen Tsai
发明人： Mehryar Khalili Garakani , Herbert M. Wildfeuer , Gavin Jin , Chieh-Wen Tsai
IPC分类号： H04L12/66 , H04N7/14 , H04L29/06
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。

5. 发明授权

US07639403B2 Technique for connecting fax machines with advanced capabilities over a network which is not adapted to handle certain protocols 有权
标题翻译：通过网络连接具有先进功能的传真机的技术，不适合处理某些协议
公开(公告)号：US07639403B2
公开(公告)日：2009-12-29
申请号：US11058491
申请日：2005-02-14
申请人： Mehryar Khalili Garakani , Hanh Luong , Brooks S. Read , Steven J. White , Ilya Umansky , Herbert M. Wildfeuer
发明人： Mehryar Khalili Garakani , Hanh Luong , Brooks S. Read , Steven J. White , Ilya Umansky , Herbert M. Wildfeuer
IPC分类号： H04N1/04
CPC分类号： H04N1/00209 , H04N1/32719 , H04N1/32721 , H04N1/32723 , H04N1/32771 , H04N1/32784 , H04N1/32795 , H04N1/32797 , H04N1/33338
摘要： An improved method and system for connecting Super Group 3 fax machines over network gateways that operate using the un-enhanced T.38 protocol. With the present invention, the CM tone is suppressed. Thus a gateway that generates an AnsAm tone, will not receive a CM tone in response. The T.38 protocol does not specify what occurs if a CM tone is not received; however, it has been found that, in practice, existing fax machines fall back to V.21 mode if a CM tone is not received.
摘要翻译：一种改进的方法和系统，用于通过网络网关连接超级组3传真机，使用未增强的T.38协议进行操作。根据本发明，抑制了CM色调。因此，生成AnsAm音调的网关将不会收到CM音。 T.38协议没有指定如果没有收到CM音，会发生什么; 然而，已经发现，在实践中，如果没有接收到CM音调，现有的传真机将返回到V.21模式。

6. 发明授权

US07715431B1 Fallback for V.42 modem-over-internet-protocol (MoIP) gateways method and apparatus 有权
标题翻译： V.42调制解调器 - 互联网协议（MoIP）网关方法和设备的后备
公开(公告)号：US07715431B1
公开(公告)日：2010-05-11
申请号：US10273374
申请日：2002-10-16
申请人： Mehryar Khalili Garakani , Herbert M. Wildfeuer
发明人： Mehryar Khalili Garakani , Herbert M. Wildfeuer
IPC分类号： H04J3/16 , H04J3/22
CPC分类号： H04M11/066 , H04L47/10
摘要： The invented method and apparatus include a transport mechanism for transporting a non-V.42, e.g. a V.14 or synchronous modem, data stream in a modem relay connection utilizing the standard V.14 raw or character mode, the transport mechanism including a rate-control mechanism for substantially speed-matching the end-to-end flow of data. Preferably, speed-matching is based on a calculated effective data rate—which takes into account various character and link framing and compression overhead—rather than a physical layer rate. Rate-control methods include the use of receive not ready (RNR) to control data flow in a V.42 leg of a mixed non-V.42 and V.42 connection, a single leaky bucket technique and effective data rate-matching. Also proposed is a lossless compression mechanism (e.g. run-length encoding (RLE)) for encoding a data bit stream into modem relay packets. An auto-detection method on the non-V.42 leg in the character mode is proposed for determining character size to enable extraction and packetizing thereof for modem relay transmission.
摘要翻译：本发明的方法和装置包括用于传送非V.42的传送机构， V.14或同步调制解调器，使用标准V.14原始或字符模式的调制解调器中继连接中的数据流，该传输机制包括用于基本上加速匹配数据的端对端流量的速率控制机制。优选地，速度匹配基于计算的有效数据速率，其考虑到各种字符和链路成帧和压缩开销而不是物理层速率。速率控制方法包括使用接收未就绪（RNR）来控制混合非V.42和V.42连接的V.42分支中的数据流，单次泄漏桶技术和有效数据速率匹配。还提出了用于将数据比特流编码成调制解调器中继分组的无损压缩机制（例如游程长度编码（RLE））。提出了一种字符模式下非V.42支路的自动检测方法，用于确定字符大小，以便对调制解调器中继传输进行提取和打包。

7. 发明申请

US20090135810A1 Device to terminate a modem relay channel directly to an IP network 审中-公开
标题翻译：将调制解调器中继信道直接终止到IP网络的设备
公开(公告)号：US20090135810A1
公开(公告)日：2009-05-28
申请号：US12321497
申请日：2009-01-21
申请人： Vicent T. Grove , Herbert M. Wildfeuer , Mehryar Khalili Garakani , Bruce D. Juhlin , Scott Anthony Boynton
发明人： Vicent T. Grove , Herbert M. Wildfeuer , Mehryar Khalili Garakani , Bruce D. Juhlin , Scott Anthony Boynton
IPC分类号： H04L12/66
CPC分类号： H04M11/06 , H04L12/4633
摘要： A modem data aggregating gateway that supports modem relay functionality for permitting reliable switching of modem traffic between a VoIP network and a data packet switch Internet Protocol (IP) network, s.a. the Internet. The modem relay aggregator may receive modem data encapsulated as Voice over IP (VoIP) data packets in accordance with a Simple Packet Relay Transport (SPRT) mechanism. The packet data may be error corrected and/or decompressed before being repackaged for forwarding to the ultimate destination. In the event that the destination is itself an IP device, the modem relay aggregator may forward the packets directly over the IP network. As a result, if the destination of a modem call is an IP device (such as a Web site or other Internet-enabled device) the technique eliminates two points from a processing path in which digital signal processing (DSPs) would otherwise have to perform modem protocol processing. Otherwise, minimal modem reformatting can be performed at the aggregation point.
摘要翻译：一种调制解调器数据聚合网关，其支持调制解调器中继功能，以允许在VoIP网络和数据分组交换机因特网协议（IP）网络之间可靠地切换调制解调器业务。互联网。调制解调器中继聚合器可以根据简单分组中继传输（SPRT）机制接收封装成IP语音（VoIP）数据分组的调制解调器数据。分组数据可以在被重新包装以转发到最终目的地之前被纠错和/或解压缩。在目的地本身是IP设备的情况下，调制解调器中继聚合器可以直接通过IP网络转发分组。结果，如果调制解调器呼叫的目的地是IP设备（诸如网站或其他启用互联网的设备），则该技术消除了数字信号处理（DSP）否则必须执行的处理路径的两个点调制解调器协议处理。否则，可以在聚合点执行最小的调制解调器重新格式化。

8. 发明授权

US07489633B2 Method and apparatus for differential link bring-up for MoIP on the Internet 有权
标题翻译：互联网上MoIP差分链路的方法和装置
公开(公告)号：US07489633B2
公开(公告)日：2009-02-10
申请号：US10255168
申请日：2002-09-24
申请人： Mehryar Khalili Garakani , Herbert M. Wildfeuer
发明人： Mehryar Khalili Garakani , Herbert M. Wildfeuer
IPC分类号： H04L12/12
CPC分类号： H04M7/006 , H04L29/06 , H04L29/06027
摘要： Method and apparatus are described for differential MoIP bring-up and compression negotiation. A first differential, and, more particularly, overlapping, bring-up method involves initiating a bring-up of a first layer associated with a first modem; imposing a time delay; after the time delay, initiating a bring-up of a second layer associated with a second modem; and delaying completion of the first layer bring-up associated with the first modem until substantial completion of the second layer bring-up associated with the second modem. Two alternative differential, and, more particularly, sequential, V.8 modem relay link bring-up methods involve first bringing up a physical layer at a first leg while delaying bring-up of the physical layer of the second leg until completion of the bring up of the physical layer at the first leg, and thereafter completing XID exchange. All described methods and apparatus involve at least physical layer bring-up at both ends, and all optionally may involve the bring-up at either end also of error-correction (EC) layers and data compression layers.
摘要翻译：描述了用于差分MoIP启动和压缩协商的方法和装置。并且更具体地，重叠的提出方法涉及启动与第一调制解调器相关联的第一层的启动; 施加时间延迟; 在时间延迟之后，启动与第二调制解调器相关联的第二层的启动; 并延迟与第一调制解调器相关联的第一层提出的完成，直到与第二调制解调器相关联的第二层启动的基本完成。两种可选的差分，更具体地，顺序的V.8调制解调器中继链路提出方法涉及首先在第一条腿处引起物理层，同时延迟第二条腿的物理层的启动，直到完成在第一站的物理层的上升，然后完成XID交换。所有描述的方法和装置至少涉及在两端的物理层启动，并且所有这些方法和装置都可以包括在错误校正（EC）层和数据压缩层的任一端的启动。

9. 发明授权

US07483414B2 Device to terminate a modem relay channel directly to in IP network 有权
标题翻译：将调制解调器中继信道直接终止到IP网络的设备
公开(公告)号：US07483414B2
公开(公告)日：2009-01-27
申请号：US10144423
申请日：2002-05-10
申请人： Vicent T. Grove , Herbert M. Wildfeuer , Mehryar Khalili Garakani , Bruce D. Juhlin , Scott Anthony Boynton
发明人： Vicent T. Grove , Herbert M. Wildfeuer , Mehryar Khalili Garakani , Bruce D. Juhlin , Scott Anthony Boynton
IPC分类号： H04L12/28
CPC分类号： H04M11/06 , H04L12/4633
摘要： A modem data aggregating gateway that supports modem relay functionality for permitting reliable switching of modem traffic between a VoIP network and a data packet switch Internet Protocol (IP) network, s.a. the Internet. The modem relay aggregator may receive modem data encapsulated as Voice over IP (VoIP) data packets in accordance with a Simple Packet Relay Transport (SPRT) mechanism. The packet data may be error corrected and/or decompressed before being repackaged for forwarding to the ultimate destination. In the event that the destination is itself an IP device, the modem relay aggregator may forward the packets directly over the IP network. As a result, if the destination of a modem call is an IP device (such as a Web site or other Internet-enabled device) the technique eliminates two points from a processing path in which digital signal processing (DSPs) would otherwise have to perform modem protocol processing. Otherwise, minimal modem reformatting can be performed at the aggregation point.
摘要翻译：一种调制解调器数据聚合网关，其支持调制解调器中继功能，以允许在VoIP网络和数据分组交换机因特网协议（IP）网络之间可靠地切换调制解调器业务。互联网。调制解调器中继聚合器可以根据简单分组中继传输（SPRT）机制接收封装成IP语音（VoIP）数据分组的调制解调器数据。分组数据可以在被重新包装以转发到最终目的地之前被纠错和/或解压缩。在目的地本身是IP设备的情况下，调制解调器中继聚合器可以直接通过IP网络转发分组。结果，如果调制解调器呼叫的目的地是IP设备（诸如网站或其他启用互联网的设备），则该技术消除了数字信号处理（DSP）否则必须执行的处理路径的两个点调制解调器协议处理。否则，可以在聚合点执行最小的调制解调器重新格式化。

10. 发明授权

US07158543B1 V.8bis suppression method and apparatus for modem relay 有权
标题翻译：调制解调器继电器的V.8bis抑制方法和装置
公开(公告)号：US07158543B1
公开(公告)日：2007-01-02
申请号：US10112367
申请日：2002-03-29
申请人： Mehryar Khalili Garakani , Herbert M. Wildfeuer , Gavin Jin , Chieh-Wen Tsai
发明人： Mehryar Khalili Garakani , Herbert M. Wildfeuer , Gavin Jin , Chieh-Wen Tsai
IPC分类号： H04J3/12 , H04B1/38 , H04M3/00
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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