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公开(公告)号：US08611235B2
公开(公告)日：2013-12-17
申请号：US11763075
申请日：2007-06-14
CPC分类号： H04Q11/04 , H04Q2213/13003 , H04Q2213/13039 , H04Q2213/13094 , H04Q2213/1319 , H04Q2213/13298 , H04Q2213/13389
摘要： In one embodiment, estimating a length of a network connection, determining whether the estimated network connection length deviates from a predetermined threshold range, modifying one or more signal characteristics when it is determined that the estimated network connection length deviates from the predetermined threshold range are provided.
摘要翻译： 在一个实施例中，估计网络连接的长度，确定所估计的网络连接长度是否偏离预定的阈值范围，当确定所估计的网络连接长度偏离所述预定阈值范围时修改一个或多个信号特征 。
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公开(公告)号：US5774460A
公开(公告)日：1998-06-30
申请号：US592426
申请日：1996-07-03
申请人： Reinhard Schiffel , Klaus Jackel , Bruno Stadler , Holger Vogel
发明人： Reinhard Schiffel , Klaus Jackel , Bruno Stadler , Holger Vogel
CPC分类号： H04W88/08 , H04Q11/0457 , H04Q2213/098 , H04Q2213/099 , H04Q2213/1302 , H04Q2213/1304 , H04Q2213/13082 , H04Q2213/13094 , H04Q2213/13098 , H04Q2213/13106 , H04Q2213/13202 , H04Q2213/13204 , H04Q2213/13209 , H04Q2213/13213 , H04Q2213/13298 , H04Q2213/13299 , H04Q2213/13322 , H04Q2213/383 , H04W84/14
摘要： A local ISDN transmission system has a central base station and a number of subscriber radio terminals greater than the number of communication channels. The system is connectable to subscriber ports through an S.sub.0 wireless transmission interface and is responsive to an activation request from a subscriber radio terminal for opening any available and free communication channel for a communication. An intermediate generator in the base station and in each subscriber terminal divides an ISDN two-wire subscriber connection line between a line termination section and a network termination section communicating by radio transmission. The intermediate generator, upon the occurrence of an activation request by a subscriber terminal, allocates a communication channel within waiting and monitoring periods for the activation of the ISDN two-wire subscriber connecting line. A delay system delays the activation request by a delay period sufficient to switch the allocated communication channel and activate a radio system of the subscriber terminal.
摘要翻译： PCT No.PCT / DE94 / 00878 Sec。 371日期：1996年7月3日 102（e）日期1996年7月3日PCT 1994年7月28日PCT公布。 公开号WO95 / 05053 日期1995年02月16日本地ISDN传输系统具有大于通信信道数量的中央基站和多个用户无线终端。 该系统可通过S0无线传输接口连接到用户端口，并响应于来自用户无线电终端的激活请求，以打开用于通信的任何可用和空闲的通信信道。 在基站和每个用户终端中的中间发生器在通过无线电传输通信的线路终端部分和网络终端部分之间划分ISDN两线用户连接线。 中间发生器在用户终端发生激活请求时，在等待和监视周期内分配用于激活ISDN两线用户连接线路的通信信道。 延迟系统将激活请求延迟足以切换所分配的通信信道并激活用户终端的无线电系统的延迟时间。
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公开(公告)号：US08126038B2
公开(公告)日：2012-02-28
申请号：US12392039
申请日：2009-02-24
申请人： Patrick Duvaut , Ehud Langberg
发明人： Patrick Duvaut , Ehud Langberg
IPC分类号： H04B1/38
CPC分类号： H04Q11/04 , H04Q2213/13039 , H04Q2213/13094 , H04Q2213/13204 , H04Q2213/13396
摘要： The present invention overcomes various problems by defining two upstream masks (U1, U2) and two downstream masks (D1, D2) and using a mask selectable system for the long reach digital subscriber line (LDSL), in which a unique modem feature is activated during handshake to automatically check for physical layer status in terms of spectral compatibility and, thus, automatically optimize the boosted mode with the use of the mask selectable system choose the best combination of upstream/downstream masks in any physical layer noise scenario.
摘要翻译： 本发明通过定义两个上游掩码（U1，U2）和两个下行掩码（D1，D2）并使用用于长距离数字用户线（LDSL）的掩码可选择系统来克服各种问题，其中唯一的调制解调器特征被激活 在握手期间，根据频谱兼容性自动检查物理层状态，因此，使用掩码可选择系统自动优化升压模式，在任何物理层噪声场景中选择上游/下游掩码的最佳组合。
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公开(公告)号：US06829246B2
公开(公告)日：2004-12-07
申请号：US09815840
申请日：2001-03-23
IPC分类号： H04L1226
CPC分类号： H04L12/2878 , H04L12/2885 , H04Q11/00 , H04Q2213/13039 , H04Q2213/13094
摘要： A system and method for extending the distance that xDSL services are able to be provided to subscribers. A DSLAM located at a Central Office is connected to a general-purpose network, such as the Internet. The DSLAM is additionally connected to a first fiber optic transceiver. The first fiber optic transceiver is connected via a fiber optic link to a second fiber optic transceiver located proximate to the subscribers' premises, preferably in a street cabinet. Each subscriber premise's equipment is connected to the broadband transceiver via subscriber lines. Electrical signals to be transmitted between the Central Office and the subscribers' premises are utilized to form a frequency division multiplexed signal. The frequency division multiplexed signal is used to modulate a light subcarrier for transmission across the fiber optic link. At the respective receiving transceiver, the frequency division multiplexed signal is reconverted to the electrical signals, which are then applied to the subscriber premises equipment or DSLAM, depending upon the direction of communication.
摘要翻译： 一种用于扩展xDSL服务能够提供给用户的距离的系统和方法。 位于中心局的DSLAM连接到通用网络，例如因特网。 DSLAM另外连接到第一光纤收发器。 第一光纤收发器经由光纤链路连接到位于订户的房屋附近的优选在街道柜中的第二光纤收发器。 每个用户住宅的设备通过用户线连接到宽带收发器。 利用在中心局和用户房屋之间传输的电信号来形成频分复用信号。 频分多路复用信号用于调制光子载波以用于穿过光纤链路的传输。 在相应的接收收发机处，频分复用信号被转换为电信号，然后根据通信方向将其应用于用户住宅设备或DSLAM。
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5.发明授权Use of robbed framing bits to provide secondary pots channel over extended range ISDN communications network 有权使用抢劫的位位置在扩展范围的ISDN通信网络上提供二级通道公开(公告)号：US06519267B1
公开(公告)日：2003-02-11
申请号：US09351082
申请日：1999-07-09
IPC分类号： A04J312
CPC分类号： H04J3/172 , H04Q11/0428 , H04Q2213/13034 , H04Q2213/1309 , H04Q2213/13094 , H04Q2213/13174 , H04Q2213/13209 , H04Q2213/13216
摘要： The currently defined industry standard framing structure for 2B1Q ISDN signaling, at 160 kilobaud, provides 128 kbps for a customer (B1, B2) data channel, and 16 kbps for a data (D) channel. Of the remaining 16 kbps non payload bandwidth, 4 kbps are used for overhead maintenance data. Eight kbps of the remaining 12 kbps of non payload bandwidth, that customarily transport a repeated framing pattern, are usurped for the transport of an auxiliary compressed (from 64 KHz to 8 KHz) digitized voice POTS channel, that is sufficient to transport toll quality voice. The remaining framing pattern bandwidth is adequate prevent an unacceptable reduction in bit error rate.
摘要翻译： 目前定义的行业标准框架结构，用于2BiQ ISDN信令（160千比特），为客户（B1，B2）数据信道提供128kbps，对于数据（D）信道提供16kbps。 在剩余的16 kbps非有效载荷带宽中，4 kbps用于架空维护数据。 剩余的12kbps的非有效载荷带宽的8kbps（通常传输重复的帧模式）被用于传输辅助压缩（从64KHz到8KHz）的数字化语音POTS信道，这足以传输费用质量语音 。 剩余的帧模式带宽足以防止误码率的不可接受的降低。
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6.发明授权Quarter-rate 2B1Q ISDN architecture with embedded differential delay compensation for extending range of DDS communications 有权具有嵌入式差分延迟补偿的季度2B1Q ISDN架构，可扩展DDS通信范围公开(公告)号：US06487222B1
公开(公告)日：2002-11-26
申请号：US09334965
申请日：1999-06-17
IPC分类号： H04J306
CPC分类号： H04L25/4919 , H04J3/0682 , H04J3/12 , H04Q11/0435 , H04Q2213/13034 , H04Q2213/13094 , H04Q2213/13194 , H04Q2213/13208 , H04Q2213/13209 , H04Q2213/13216 , H04Q2213/13292 , H04Q2213/1336
摘要： The transmission distance for DDS subscriber lines over a repeaterless four-wire link is extended to customer premises beyond the standard four-wire loop range of approximately 18 kft (56 kbps, 56 kbps with secondary channel capability, and 64 kbps) by employing commercially available ISDN transceiver chip hardware to multiplex a DDS data channel into quarter-rate (2B1Q) ISDN channels. At least one of a signalling channel and an out-of-band maintenance channel is used to convey differential delay compensation information, without modifying the framing structure of the transported channels, or requiring additional bandwidth for a separate framing channel.
摘要翻译： 通过采用市售的方式，通过无中继四线链路的DDS用户线的传输距离扩展到超过标准四线环路范围的客户端，大约18kft（56kbps，56kbps，次要信道能力和64kbps） ISDN收发器芯片硬件，将DDS数据通道复用为四分之一速率（2B1Q）ISDN信道。 信令信道和带外维护信道中的至少一个用于传送差分延迟补偿信息，而不修改传送信道的成帧结构，或者为单独的帧通道需要额外的带宽。
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7.发明授权Use of modified line encoding and low signal-to-noise auto ratio based signal processing to extend range of digital data transmission over repeaterless two-wire telephone link 有权使用经修改的线路编码和基于信噪比的低信号处理可以通过无中继的两线电话链路扩展数字数据传输的范围公开(公告)号：US06393029B1
公开(公告)日：2002-05-21
申请号：US09438555
申请日：1999-11-10
IPC分类号： H04L1228
CPC分类号： H04L25/4917 , H04L25/03343 , H04L25/497 , H04L25/4975 , H04Q11/0435 , H04Q11/0471 , H04Q2213/1303 , H04Q2213/13034 , H04Q2213/13094 , H04Q2213/1319 , H04Q2213/13199 , H04Q2213/13209 , H04Q2213/13216 , H04Q2213/13322
摘要： The range of digital data communication services, such as a basic rate 2B1Q ISDN channel, to customer premises located beyond the industry standard achievable range of a two-wire loop can be extended by increasing the capacity of the ISDN line code from two information bits per symbol to three information bits per symbol, so as to reduce the effective symbol rate, which is error correction encoded to an effective 4B1H line code for defining a sixteen level PAM signal waveform, and employing enhanced low signal-to-noise ratio signal processing techniques in both the transmitter and receiver to accommodate the increased insertion loss of the two-wire line resulting from its extended length. Such enhanced low signal-to-noise ratio signal processing techniques include a Tomlinson precoder in the transmitter, and an adaptive linear equalizer and a module unit in the receiver.
摘要翻译： 可以通过从两个信息比特来增加ISDN线路码的容量来扩展数字数据通信服务的范围，例如基本速率2B1Q ISDN信道到位于超出行业标准可实现的两线环路范围的客户驻地 符号到每个符号三个信息位，以便减少有效符号率，其被纠错编码为有效的4B1H线路码，用于定义十六电平PAM信号波形，并采用增强的低信噪比信号处理技术 在发射机和接收机中，以适应由于其延长的长度而导致的双线线路的增加的插入损耗。 这种增强的低信噪比信号处理技术包括发射机中的Tomlinson预编码器，以及接收机中的自适应线性均衡器和模块单元。
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8.发明授权
公开(公告)号：US5673258A
公开(公告)日：1997-09-30
申请号：US398446
申请日：1995-03-03
申请人： Klaus Helbig , Roland Geissler , Norbert Wulst
发明人： Klaus Helbig , Roland Geissler , Norbert Wulst
CPC分类号： H04Q11/0471 , H04Q11/0457 , H04Q2213/094 , H04Q2213/13034 , H04Q2213/13094 , H04Q2213/13176 , H04Q2213/13202 , H04Q2213/13209 , H04Q2213/13298 , H04Q2213/13299 , H04Q2213/1332 , H04Q2213/13322 , H04Q2213/13333 , H04Q2213/1336 , H04Q2213/13383 , H04Q2213/202 , H04Q2213/205 , H04Q2213/214 , H04Q2213/36 , H04Q2213/381 , Y10S370/904
摘要： One, or more, ISDN interfaces have their reach extended without violating ISDN interface standards by a method which converts ISDN coded information which is to be delivered over an extended channel into binary coded data prior to transmission, transmitting the binary coded information to a receiver at an extended location and there, after storage, and assembly, converting the binary coded data into ISDN specific coded data for delivery to an ISDN interface.
摘要翻译： 一个或多个ISDN接口通过一种将在扩展信道上传送的ISDN编码信息转换为二进制编码数据的方法，不违反ISDN接口标准而扩展其接口，将二进制编码信息发送到接收机 扩展位置和存储和组装之后，将二进制编码数据转换为ISDN专用编码数据，以传送到ISDN接口。
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公开(公告)号：US20080080601A1
公开(公告)日：2008-04-03
申请号：US11849618
申请日：2007-09-04
申请人： Patrick Duvaut , Ehud Langberg
发明人： Patrick Duvaut , Ehud Langberg
IPC分类号： H04B1/38
CPC分类号： H04Q11/04 , H04Q2213/13039 , H04Q2213/13094 , H04Q2213/13204 , H04Q2213/13396
摘要： The present invention overcomes various problems by defining two upstream masks (UI, U2) and two downstream masks (DI, D2) and using a mask selectable system for the long reach digital subscriber line (LDSL), in which a unique modem feature is activated during handshake to automatically check for physical layer status in terms of spectral compatibility and, thus, automatically optimize the boosted mode with the use of the mask selectable system choose the best combination of upstream/downstream masks in any physical layer noise scenario.
摘要翻译： 本发明通过定义两个上游掩码（UI，U 2）和两个下行掩码（DI，D 2）并使用用于长距离数字用户线（LDSL）的掩码可选择系统来克服各种问题，其中唯一的调制解调器特征 在握手期间被激活以在频谱兼容性方面自动检查物理层状态，并且因此利用掩模可选择系统自动优化升压模式，在任何物理层噪声场景中选择上游/下游掩码的最佳组合。
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公开(公告)号：US20040218667A1
公开(公告)日：2004-11-04
申请号：US10714661
申请日：2003-11-18
发明人： Patrick Duvaut , Lujing Cai , Massimo Sorbara
IPC分类号： H04B017/00 , H04Q001/20
CPC分类号： H04Q11/04 , H04Q2213/13039 , H04Q2213/13094 , H04Q2213/13204 , H04Q2213/13396
摘要： A nullSmart DSL Systemnull for addressing the performance objectives of LDSL and examples of smart systems for LDSL are disclosed. In accordance with embodiments of the invention, there is disclosed a method for implementing smart DSL for LDSL systems. Embodiments of the method include presenting a number of spectral masks that are available on the LDSL system, and selecting from the number of spectral masks an upstream mask and a downstream mask wherein the upstream mask and the downstream mask exhibit complimentary features.
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