专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08126137B2 Vectored digital subscriber line system having modular vectoring arrangements 有权
标题翻译：具有模块化矢量布置的矢量数字用户线系统
公开(公告)号：US08126137B2
公开(公告)日：2012-02-28
申请号：US12445853
申请日：2007-09-21
申请人： Hans Öhman , Frank Sjöberg
发明人： Hans Öhman , Frank Sjöberg
IPC分类号： H04M1/76
CPC分类号： H04B3/32
摘要： The present invention relates to a vectoring chip unit in a DSL system connectable to a plurality of DSL ports of a DSL chip comprising means for receiving data from each of the plurality of DSL ports, means for performing pre-coding/cancellation in order to reduce crosstalk and means for transmitting a result of the precoding/cancellation to the respective DSL port. Preferably, a system is provided comprising a plurality of said vectoring chips, whereby each vectoring chip is adapted to handle pre-coding/cancellation of a predetermined frequency range and the frequency ranges of each vectoring chip are non-overlapping.
摘要翻译：本发明涉及可连接到DSL芯片的多个DSL端口的DSL系统中的矢量化芯片单元，其包括用于从多个DSL端口中的每一个接收数据的装置，用于执行预编码/取消以便减少串扰和用于将预编码/取消的结果发送到相应的DSL端口的装置。优选地，提供了包括多个所述向量化芯片的系统，由此每个矢量化芯片适于处理预定频率范围的预编码/消除，并且每个矢量化芯片的频率范围是不重叠的。

2. 发明申请

US20100034374A1 VECTORED DIGITAL SUBSCRIBER LINE SYSTEM HAVING MODULAR VECTORING ARRANGEMENTS 有权
标题翻译：具有模块化矢量安排的矢量数字订阅系统系统
公开(公告)号：US20100034374A1
公开(公告)日：2010-02-11
申请号：US12445853
申请日：2007-09-21
申请人： Hans Öhman , Frank Sjöberg
发明人： Hans Öhman , Frank Sjöberg
IPC分类号： H04M9/08 , H04B3/20
CPC分类号： H04B3/32
摘要： The present invention relates to a vectoring chip unit in a DSL system connectable to a plurality of DSL ports of a DSL chip comprising means for receiving data from each of the plurality of DSL ports, means for performing pre-coding/cancellation in order to reduce crosstalk and means for transmitting a result of the precoding/cancellation to the respective DSL port. Preferably, a system is provided comprising a plurality of said vectoring chips, whereby each vectoring chip is adapted to handle pre-coding/cancellation of a predetermined frequency range and the frequency ranges of each vectoring chip are non-overlapping.
摘要翻译：本发明涉及可连接到DSL芯片的多个DSL端口的DSL系统中的矢量化芯片单元，其包括用于从多个DSL端口中的每一个接收数据的装置，用于执行预编码/取消以便减少串扰和用于将预编码/取消的结果发送到相应的DSL端口的装置。优选地，提供了包括多个所述向量化芯片的系统，由此每个矢量化芯片适于处理预定频率范围的预编码/消除，并且每个矢量化芯片的频率范围是不重叠的。

3. 发明授权

US07113549B1 In, or relating to, VDSL 有权
标题翻译：在或与VDSL有关
公开(公告)号：US07113549B1
公开(公告)日：2006-09-26
申请号：US09622523
申请日：1999-02-17
申请人： Mikael Isaksson , Daniel Bengtsson , Frank Sjöberg , Per Ödling , Rickard Nilsson , Gunnar Bahlenberg , Magnus Johansson , Lennart Olsson , Göran Ökvist
发明人： Mikael Isaksson , Daniel Bengtsson , Frank Sjöberg , Per Ödling , Rickard Nilsson , Gunnar Bahlenberg , Magnus Johansson , Lennart Olsson , Göran Ökvist
IPC分类号： H04B15/00
CPC分类号： H04L5/143 , H04L27/2607 , H04L27/2626 , H04L27/2647
摘要： Zipper is the time-synchronized frequency-division duplex implementation of discrete multi-tome (DMT) modulation. Two communicating Zipper modems transmit DMT symbols simultaneously with a common clock. When all transmitters are time synchronized, the near end cross-talk (NEXT) and near end echoes injected into the received signal are orthogonal to the desired signal. The present invention provides a telecommunications transmission system using zipper and having at least two VDSL systems. Each VDSL system comprises a pair of zipper modems communicating over a cable transmission path. The telecommunications transmission system handles zipper transmission transmitted over the common cable; at least partly mitigates NEXT; and permits transmissions in a first VDSL system which are asynchronous with transmissions in a second VDSL system.
摘要翻译：拉链是离散多包（DMT）调制的时间同步分频双工实现。两个通信的拉链调制解调器同时发送DMT符号与公共时钟。当所有发射机都是时间同步时，注入接收信号的近端串扰（NEXT）和近端串扰回波正交于所需信号。本发明提供一种使用拉链并具有至少两个VDSL系统的电信传输系统。每个VDSL系统包括通过电缆传输路径通信的一对拉链调制解调器。电信传输系统处理通过公共电缆传输的拉链传输; 至少部分减轻NEXT; 并允许与第二VDSL系统中的传输异步的第一VDSL系统中的传输。

4. 发明授权

US07050489B1 VDSL transmission systems 有权
标题翻译： VDSL传输系统
公开(公告)号：US07050489B1
公开(公告)日：2006-05-23
申请号：US09856438
申请日：1999-11-18
申请人： Frank Sjöberg , Sarah Kate Wilson , Rickard Nilsson , Daniel Bengtsson , Mikael Isaksson , Tomas Nordström , Per Ödling , Gunnar Bahlenberg , Magnus Johansson , Lennart Olsson , Sven-Göran Ökvist
发明人： Frank Sjöberg , Sarah Kate Wilson , Rickard Nilsson , Daniel Bengtsson , Mikael Isaksson , Tomas Nordström , Per Ödling , Gunnar Bahlenberg , Magnus Johansson , Lennart Olsson , Sven-Göran Ökvist
IPC分类号： H04B1/38
CPC分类号： H04B3/32 , H04L5/0007
摘要： One problem, frequently encountered with VDSL transmission systems, is that upstream FEXT produced by system users having short wires can be very strong. Users having shorter wires get high bit rates whereas users having longer wires get low bit rates. In extreme cases it may happen that users with wire lengths greater than 1000 meter cannot transmit data upstream. The present invention provides a VDST transmission system with a plurality of modems. The modems are located at varying distances from a central station. There is a target bit rate for each modem. That modems on shorter wires have control means for reducing their transmit power. This reduces the FEXT produced by these modems enabling modems on longer wires to transmit at higher bit rates.
摘要翻译： VDSL传输系统经常遇到的一个问题是系统用户短路导致的上游FEXT可能非常强大。具有较短导线的用户获得高比特率，而具有较长导线的用户可获得较低的比特率。在极端情况下，线长大于1000米的用户无法向上传输数据。本发明提供一种具有多个调制解调器的VDST传输系统。调制解调器位于距离中心站不同的距离。每个调制解调器有一个目标比特率。较短导线上的调制解调器具有降低发射功率的控制装置。这减少了由这些调制解调器产生的FEXT，使得更长导线上的调制解调器能够以更高的比特率传输。

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