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1. 发明授权

US07409003B2 Method and apparatus for implementing adaptive tomlinson-harashima precoding in a digital data link 失效
标题翻译：用于在数字数据链路中实现自适应森林 - 小岛预编码的方法和装置
公开(公告)号：US07409003B2
公开(公告)日：2008-08-05
申请号：US10503076
申请日：2003-02-19
申请人： Jä{umlaut over (n)}në Väänänen , Heikki Laamanen
发明人： Jä{umlaut over (n)}në Väänänen , Heikki Laamanen
IPC分类号： H04B15/00 , H04B1/10
CPC分类号： H04L25/03343 , H04L25/03057 , H04L25/4921 , H04L27/34
摘要： The invention relates to a method for implementing adaptive Tomlinson-Harashima precoding using a digital data communications link. According to the method, the outgoing bit stream is coded into symbols, channel distortion is corrected by precoding (TML) the symbols, the precoded symbols are sent over a data communications channel (2, CHN), in which case the symbols, which have passed through the channel (2, CHN) and signal processing means for the receiver are reconstructed to form a bit stream. According to the invention, updated precoder coefficient parameter values are formed with the aid of an error variable (e), which is dependent on the symbol decisions (S′) of the receiver, the output signal of a decision-feedback equalizer, and a signal (Q) that is formed from the received signal by compensating the effect of the precoder transfer function of the received signal with an inverse precoder transfer functions.
摘要翻译：本发明涉及使用数字数据通信链路来实现自适应Tomlinson-Harashima预编码的方法。根据该方法，输出比特流被编码为符号，通过预编码（TML）来校正信道失真，经过数据通信信道（2，CHN）发送预编码的符号，在这种情况下，通过信道（2，CHN），并重建用于接收机的信号处理装置以形成比特流。根据本发明，借助于错误变量（e）形成更新的预编码器系数参数值，该误差变量取决于接收机的符号判定（S'），判决反馈均衡器的输出信号和通过用反向预编码器传递函数补偿接收信号的预编码器传递函数的影响，由接收信号形成的信号（Q）。

2. 发明授权

US08806261B2 Method and a device for controlling a clock signal generator 有权
标题翻译：方法和用于控制时钟信号发生器的装置
公开(公告)号：US08806261B2
公开(公告)日：2014-08-12
申请号：US13419478
申请日：2012-03-14
申请人： Kenneth Hann , Mikko Laulainen , Heikki Laamanen , Jonas Lundqvist
发明人： Kenneth Hann , Mikko Laulainen , Heikki Laamanen , Jonas Lundqvist
IPC分类号： G06F1/00 , G06F1/12 , H04J3/06 , H04B1/38 , H04L7/00 , H04L7/08
CPC分类号： H04J3/0664 , H04L7/08
摘要： A device for controlling a clock signal generator includes a processor (101) for forming at least two mutually different control quantities on the basis of reception moments of timing messages such as time stamps, where the reception moments are expressed as time values based on a first clock signal and the timing messages are transmitted in accordance with a second clock signal. The processor also calculates a weighted sum of the control quantities, and controls the clock signal generator with the weighted sum so as to synchronize the first clock signal and the second clock signal. The control quantities may represent, for example, a filtered value of observed phase-errors, a phase-error corresponding to a minimum observed transfer delay, and phase-errors corresponding to a given portion of the delay distribution. Using the weighted sum of the mutually different control quantities improves the utilization of the information content of the timing messages.
摘要翻译：用于控制时钟信号发生器的装置包括：处理器（101），用于基于诸如时间戳的定时消息的接收时刻形成至少两个相互不同的控制量，其中接收时刻表示为基于第一时钟信号和定时消息根据第二时钟信号发送。处理器还计算控制量的加权和，并且以加权和控制时钟信号发生器，以使第一时钟信号和第二时钟信号同步。控制量可以表示例如观察到的相位误差的滤波值，对应于最小观察到的传输延迟的相位误差，以及对应于延迟分布的给定部分的相位误差。使用相互不同的控制量的加权和提高了定时消息的信息内容的利用率。

3. 发明授权

US07995623B2 Method and system for synchronizing clock signals 有权
标题翻译：用于同步时钟信号的方法和系统
公开(公告)号：US07995623B2
公开(公告)日：2011-08-09
申请号：US11949845
申请日：2007-12-04
申请人： Kenneth Hann , Heikki Laamanen , Mikko Laulainen
发明人： Kenneth Hann , Heikki Laamanen , Mikko Laulainen
IPC分类号： H04J3/06 , H04L7/00
CPC分类号： H04J3/0664
摘要： A method and system for adjusting a clock signal in a network element of a data network adjusts the clock signal based on difference values formed by received synchronizing messages. Each difference value is a difference of a reception and transmission values of a received synchronizing message. The reception value depends on a cumulated number of periods of the clock signal at a moment of arrival of the synchronizing message. The transmission value depends on a position of the synchronizing message in a chronological transmission order of synchronizing messages. When adjusting, an adjusting effect of the difference values belonging to a lower part of a margin of fluctuation of the difference values is weighted more heavily than that of an upper part. Thus, for clock signal adjustment, that share of information represented by the received synchronizing messages that has the least interference is used, irrespective of the data network load.
摘要翻译：用于调整数据网络的网络元件中的时钟信号的方法和系统基于由接收到的同步消息形成的差值来调整时钟信号。每个差值是接收到的同步消息的接收和发送值的差。接收值取决于同步消息到达时刻的时钟信号的累积数量。发送值取决于同步消息的位置，按同步消息的时间顺序传输顺序。当调整时，属于差值的波动余量的下部的差值的调整效果比上部的加权更大。因此，对于时钟信号调整，使用由接收到的具有最小干扰的同步消息表示的信息份额，而不管数据网络负载如何。

4. 发明授权

US08731003B2 Method and arrangement for adjustment of a clock signal 有权
标题翻译：调整时钟信号的方法和装置
公开(公告)号：US08731003B2
公开(公告)日：2014-05-20
申请号：US12688022
申请日：2010-01-15
申请人： Heikki Laamanen , Markus Hurme , Kenneth Hann , Jonas Lundqvist
发明人： Heikki Laamanen , Markus Hurme , Kenneth Hann , Jonas Lundqvist
IPC分类号： H04J3/06
CPC分类号： H04J3/0641 , H04J3/0667 , H04J3/0676 , H04J3/14
摘要： An arrangement for adjusting a clock signal in a network element of a communications network includes a processor device arranged to produce a control variable containing information about synchronization messages received from at least two other network elements. A situation in which the reception from a sending network element of synchronization messages of a good enough quality ceases will not significantly disturb the clock signal to be adjusted because only part of the control variable used for the adjustment depends on synchronization messages sent by an individual network element. In a preferred arrangement, the reference value of the control variable is changed in response to a situation where the reception from a sending network element of synchronization messages of a good enough quality ceases. Thus it is possible to reduce the change of the difference between the control variable and its reference value which further reduces disturbances caused in the clock signal to be adjusted.
摘要翻译：用于调整通信网络的网络元件中的时钟信号的装置包括被配置为产生包含关于从至少两个其它网络元件接收的同步消息的信息的控制变量的处理器设备。由于仅用于调整的控制变量的一部分取决于由各个网络发送的同步消息，否则来自具有足够好的质量的同步消息的发送网络元件的接收停止将不会显着地干扰要调整的时钟信号元件。在优选的布置中，控制变量的参考值响应于来自具有足够好质量的同步消息的发送网络元素的接收停止的情况而改变。因此，可以减小控制变量与其参考值之间的差异的变化，这进一步减少了要调整的时钟信号引起的干扰。

5. 发明申请

US20080298525A1 METHOD AND ARRANGEMENT FOR TRANSFERRING SYNCHRONIZING INFORMATION 有权
标题翻译：传输同步信息的方法和布置
公开(公告)号：US20080298525A1
公开(公告)日：2008-12-04
申请号：US12128008
申请日：2008-05-28
申请人： Kenneth HANN , Heikki Laamanen , Mikko Laulainen
发明人： Kenneth HANN , Heikki Laamanen , Mikko Laulainen
IPC分类号： H04L7/00
CPC分类号： H04L7/0008 , H04J1/00
摘要： The invention relates to a method and arrangement for transferring synchronizing information in a data transmission system including modem connections. The arrangement according to the invention comprises a modulator (207) that is arranged to generate an analog signal (222) modulated by synchronizing information, the frequency spectrum of said signal being located in a frequency range that falls outside the data transmission bands of the modem line connected to the network element. The arrangement includes a switching circuit (208) that is arranged to connect said analog signal to a data transmission cable (206) that forms part of said modem line connected to a network element. The arrangement includes a second switching circuit (209) that is arranged to receive said analog signal from a data transmission cable that forms part of the modem line connected to the second network element. The arrangement also includes a regenerator (209) that is arranged to regenerate said synchronizing information from said analog signal.
摘要翻译：本发明涉及用于在包括调制解调器连接的数据传输系统中传送同步信息的方法和装置。根据本发明的装置包括调制器（207），其被配置为产生通过同步信息调制的模拟信号（222），所述信号的频谱位于落在调制解调器的数据传输频带之外的频率范围内线连接到网元。该装置包括一个切换电路（208），它被设置成将所述模拟信号连接到形成连接到网络元件的所述调制解调器线路的一部分的数据传输电缆（206）。该装置包括第二切换电路（209），其被配置为从构成连接到第二网络元件的调制解调器线路的一部分的数据传输电缆接收所述模拟信号。该装置还包括再生器（209），其被设置为从所述模拟信号再生所述同步信息。

6. 发明申请

US20060285552A1 Method for establishing a subscriber connection and a system utilizing the method 有权
标题翻译：用于建立用户连接的方法和利用该方法的系统
公开(公告)号：US20060285552A1
公开(公告)日：2006-12-21
申请号：US10595292
申请日：2004-10-13
申请人： Heikki Laamanen , Umesh Gowda
发明人： Heikki Laamanen , Umesh Gowda
IPC分类号： H04J3/16 , H04J3/04
CPC分类号： H04B10/272
摘要： The objective of the invention is to devise a method for establishing a subscriber connection and a system applying the method. According to the method, a digital subscriber connection consisting of a composition of an optical fiber and a metallic pair cable is implemented by transporting a digital information stream in two directions over an optical fiber (2) between a central site and equipment (103) which is connected to the metallic pair cable (4) of each subscriber. According to the invention, the information streams transmitted and received over the pair cables are multiplexed onto the optical fiber by using a multiplexing method of optical signals, whereby the information streams originating from different subscribers are combined onto the fiber by means of passive optical elements and whereby the information streams transmitted from the central site are distributed to each subscriber-specific optical-to-electric conversion element (105) by means of passive optical elements. Thus the multiplexing and demultiplexing need no active multiplexing/demultiplexing electronics common to all subscribers, but rather the active electronics of the conversion elements (105) of each subscriber operates independently without being dependent on the state of operation of other subscriber's conversion elements. Hence the operating power for said electronics can be fed from the respective subscriber through the subscriber's pair cable.
摘要翻译：本发明的目的是设计用于建立用户连接的方法和应用该方法的系统。根据该方法，通过在中心站点和设备（103）之间的光纤（2）上沿两个方向传送数字信息流来实现由光纤和金属对电缆的组合构成的数字用户连接，连接到每个用户的金属对电缆（4）。根据本发明，通过使用光信号的复用方法，通过对线电缆发送和接收的信息流被复用到光纤上，由此源自不同用户的信息流通过无源光学元件组合到光纤上，从而从中心站点发送的信息流通过无源光学元件分配给每个用户特定的光 - 电转换元件（105）。因此，复用和解复用不需要所有用户共同的有源复用/解复用电路，而是每个用户的转换元件（105）的有源电子器件独立地操作，而不依赖于其他用户的转换元件的操作状态。因此，可以通过用户的对电缆从相应的用户馈送所述电子设备的工作电源。

7. 发明授权

US10063334B2 Method and a device for generating a timing signal 有权
公开(公告)号：US10063334B2
公开(公告)日：2018-08-28
申请号：US15317114
申请日：2015-06-18
申请人： Kenneth Hann , Heikki Laamanen
发明人： Kenneth Hann , Heikki Laamanen
IPC分类号： H04J3/06 , H04W56/00
CPC分类号： H04J3/0641 , H04J3/0644 , H04J3/0658 , H04J3/0667 , H04W56/0015 , H04W56/002 , H04W56/006
摘要： A device and a method for generating a secondary timing signal that is synchronous with a primary timing signal are presented. The method comprises deriving (401) an auxiliary timing signal from an auxiliary signal received at a first site and correcting (402, 403) the timing phase of the auxiliary timing signal so as to obtain the timing phase for the secondary timing signal. The timing phase is corrected with the aid of the following a) a constant phase shift between the auxiliary timing signal and another auxiliary timing signal derived in a second site where both the primary timing signal and the auxiliary signal are available and b) a dynamic phase shift between the other auxiliary timing signal and the primary timing signal at the second site.

8. 发明授权

US07864813B2 Method and equipment for measurements 有权
标题翻译：测量方法和设备
公开(公告)号：US07864813B2
公开(公告)日：2011-01-04
申请号：US12475985
申请日：2009-06-01
申请人： Jonas Lundqvist , Kenneth Hann , Heikki Laamanen , Mikko Laulainen
发明人： Jonas Lundqvist , Kenneth Hann , Heikki Laamanen , Mikko Laulainen
IPC分类号： H04J3/06
CPC分类号： H04L43/0852 , H04J3/0667 , H04L43/50
摘要： The invention relates to determining a quantity to be measured from a communication system, such as a transmission delay or the phase difference of clock times. Measurement messages are transmitted (501, 502) between the two areas of the communication system in both transmission directions. Values of the time difference are calculated (503) for the measurement messages transmitted in at least one of the transmission directions, each of which values is the difference between the instant of reception measured at the reception and the instant of transmission measured at the transmission of the measurement message. The values of the time difference are used to calculate (504) an estimate of the distribution of the time difference, on the basis of which an estimate of the minimum value of the time difference is calculated (504).
摘要翻译：本发明涉及从通信系统确定要测量的数量，例如传输延迟或时钟时间的相位差。测量消息在两个传输方向上在通信系统的两个区域之间传送（501,502）。对于在至少一个发送方向上发送的测量消息，计算时差的值（503），其中每个传输方向的值是接收时测量的接收时刻与发送时测量的发送时刻之间的差测量消息。使用时差的值来计算（504）时间差分布的估计，基于该时间差的最小值的估计（504）。

9. 发明授权

US07512191B2 Method and apparatus for implementing a channel correction in a digital data link 有权
标题翻译：用于在数字数据链路中实现信道校正的方法和装置
公开(公告)号：US07512191B2
公开(公告)日：2009-03-31
申请号：US10169943
申请日：2000-10-16
申请人： Heikki Laamanen , Janne Väänänen
发明人： Heikki Laamanen , Janne Väänänen
IPC分类号： H04L25/49
CPC分类号： H04L25/03343 , H04L2025/03802
摘要： The present invention concerns adjustment of tap coefficients of a Tomlinson-Harashima precoder in a digital communications path during a data transmission state. According to the invention, the tap coefficients of the Tomlinson-Harashima precoder are adjusted based on content values of a delay line of the Tomlinson-Harashima precoder and on an error variable associated with a receive. Synchronization between the error value and the content values of the delay line is performed according to line frame synchronization information.
摘要翻译：本发明涉及在数据传输状态期间在数字通信路径中调整Tomlinson-Harashima预编码器的抽头系数。根据本发明，基于Tomlinson-Harashima预编码器的延迟线的内容值和与接收相关联的误差变量来调整Tomlinson-Harashima预编码器的抽头系数。根据行帧同步信息执行误差值与延迟线的内容值之间的同步。

10. 发明申请

US20050129138A1 Method and apparatus for implementing adaptive tomlinson-harashima precoding in a digital data link 失效
标题翻译：一种用于在数字数据链路中实现自适应森林 - 鹿儿岛预编码的方法和装置
公开(公告)号：US20050129138A1
公开(公告)日：2005-06-16
申请号：US10503076
申请日：2003-02-19
申请人： Janne Vaananen , Heikki Laamanen
发明人： Janne Vaananen , Heikki Laamanen
IPC分类号： H04L25/03 , H04L25/49 , H04L27/34 , H04L27/04
CPC分类号： H04L25/03343 , H04L25/03057 , H04L25/4921 , H04L27/34
摘要： The invention relates to a method for implementing adaptive Tomlinson-Harashima precoding using a digital data communications link, According to the method, the outgoing bit stream is coded into symbols, channel distortion is corrected by precoding (TML) the symbols, the precoded symbols are sent over a data communications channel (2, CHN), in which case the symbols, which have passed through the channel (2, CHN) and signal processing means of the receiver are reconstructed to form a bit stream. According to the invention, updated precoder coefficient parameter values are formed with the aid of an error variable (e), which is dependent on the symbol decisions (S′) of the receiver, the output signal of a decision-feedback equalizer, and a signal (Q) that is formed from the received signal by compensating the effect of the precoder transfer function of the received signal with an inverse precoder transfer function.
摘要翻译：本发明涉及一种使用数字数据通信链路实现自适应Tomlinson-Harashima预编码的方法，根据该方法，输出比特流被编码为符号，通过预编码（TML）来校正信道失真的符号，预编码的符号是通过数据通信信道（2，CHN）发送，在这种情况下，通过接收机的信道（2，CHN）和信号处理装置的符号被重构以形成比特流。根据本发明，借助于错误变量（e）形成更新的预编码器系数参数值，该误差变量取决于接收机的符号判定（S'），判决反馈均衡器的输出信号和通过用反向预编码器传递函数补偿接收信号的预编码器传递函数的影响，由接收信号形成的信号（Q）。

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