公开(公告)号：US06704397B1

公开(公告)日：2004-03-09

申请号：US09327532

申请日：1999-06-08

申请人： Peter Paul Frans Reusens

发明人： Peter Paul Frans Reusens

IPC分类号： H04M1100

CPC分类号： H04L27/0002 ,  H04B3/02 ,  H04Q2213/13034 ,  H04Q2213/1319 ,  H04Q2213/13199 ,  H04Q2213/13302 ,  H04Q2213/13305

摘要： A filter arrangement particularly adapted to be used in a “splitter” of an ADSL system where several POTS equipment, e.g., subscriber sets, are connected to a same telecommunication line. The arrangement, located at the customer premises, includes for each POTS equipment a distinct low-pass filter circuit to separate low frequency POTS signals from high frequency ADSL signals simultaneously transmitted over the same copper twisted-pair telecommunication line. Each low-pass filter circuit is provided with a current sensing circuit, e.g., an electrical relay, which activates a switch when the current flowing through the filter exceeds a predetermined value. Since several high order filter circuits can not be put in parallel, mainly because their capacitive values will then add, the present filter circuit is basically a 1st order filter that comprises the series connection of two transformers separated by the coil of the relay. When the current increases, i.e., because the associated subscriber set goes off-hook, the switch activated by the relay inserts a capacitor across the line and between the two transformers. The filter circuit becomes then a 3rd order filter based on the cascade connection of the first transformer, the capacitor and the second transformer. Since the order to the other filters circuits of the arrangement is not changed, there is no mutual disturbance.

摘要翻译： 特别适用于ADSL系统的“分路器”中的滤波器装置，其中多个POTS设备，例如用户组，连接到相同的电信线路。 位于客户驻地的布置包括每个POTS设备一个不同的低通滤波器电路，以将低频POTS信号与同一铜双绞线电信线路同时传输的高频ADSL信号分离。 每个低通滤波器电路设置有电流感测电路，例如继电器，其在流过滤波器的电流超过预定值时激活开关。 由于几个高阶滤波电路不能并联，主要是因为它们的电容值将会增加，所以本滤波器电路基本上是一个1阶滤波器，它包括由继电器的线圈分开的两个变压器的串联连接 。 当电流增加时，即由于相关联的用户设备摘机，由继电器激活的开关在整个线路和两个变压器之间插入一个电容器。 基于第一变压器，电容器和第二变压器的级联连接，滤波电路成为三阶滤波器。 由于对该装置的其他滤波器电路的顺序没有改变，所以没有相互干扰。

公开(公告)号：US06553066B1

公开(公告)日：2003-04-22

申请号：US09393303

申请日：1999-09-10

申请人： Thierry Pollet ,  Peter Paul Frans Reusens ,  Miguel Peeters

发明人： Thierry Pollet ,  Peter Paul Frans Reusens ,  Miguel Peeters

IPC分类号： H03H2100

CPC分类号： H04L27/2657 ,  H04L27/2662

摘要： A time error compensation arrangement (TCOMP) that compensates for a time error (&egr;, &Dgr;k) between a transmitter sample clock in a multi-carrier transmitter and a receiver sample clock (CLK) in a multi-carrier receiver (RX1, RX2) includes a digital time correction filter (FILTER, FILTER′), operative in time domain, to compensate for a linearly increasing contribution (&Dgr;k) in the time error (&egr;, &Dgr;k) and rotation means (ROTOR), operative in frequency domain, to compensate for a second, remaining contribution (&egr;) in said time error (&egr;, &Dgr;k).

摘要翻译： 包括多载波发射机中的发射机采样时钟与多载波接收机（RX1，RX2）中的接收机采样时钟（CLK）之间的时间误差（epsi，DELTAk）的时间误差补偿装置（TCOMP） 在时域中操作的数字时间校正滤波器（FILTER，FILTER'）来补偿在频域中工作的时间误差（epsi，DELTAk）和旋转装置（ROTOR）中的线性增加贡献（DELTAk），以补偿 一秒钟，剩余的贡献（epsi）在所述时间误差（epsi，DELTAk）。

公开(公告)号：US06351473B1

公开(公告)日：2002-02-26

申请号：US09007865

申请日：1998-01-15

申请人： Peter Paul Frans Reusens ,  Olivier Van De Wiel

发明人： Peter Paul Frans Reusens ,  Olivier Van De Wiel

IPC分类号： H04J100

CPC分类号： H04L5/006 ,  H04L1/04 ,  H04L5/0007 ,  H04L5/0046 ,  H04L27/2608 ,  H04L2001/0098

摘要： In a multicarrier transmission system, a transmitter (T, T′) sends digital data packets (D) modulated on a set of carriers to a receiver (R, R′). A subset of the carriers constituting the set of carriers has frequencies (f1, f2, f3, f4) in predetermined frequency ranges (Amateur Radio Band) with high risk for being affected by narrowbanded interference (RFI), e.g. originating from radio amateur transmission. The data bits of the digital data packets (D) that are allocated to the subset of carriers having frequencies (f1, f2, f3, f4) within these predetermined frequency ranges (Amateur Radio Band), are allocated thereto in a redundant way. Via an allocation message (AM) communicated between the transmitter (T, T′) and the receiver (R, R′) both are aware of the redundancy in the bit allocations. The receiver (R, R′) is capable of measuring the amount of narrowbanded interference (RFI) that affects each carrier within the subset of carriers that may be affected thereby, and can re-combine data bits allocated to carriers in this subset which carry redundant data bits so that interference immunity is improved.

摘要翻译： 在多载波传输系统中，发射机（T，T'）将在一组载波上调制的数字数据分组（D）发送到接收机（R，R'）。 构成载波组的载波的一个子集具有在受窄带干扰（RFI）影响的高风险的预定频率范围（业余无线电频带）中的频率（f1，f2，f3，f4）。 源自无线电业余传输。 分配给这些预定频率范围（业余无线电频带）内的频率（f1，f2，f3，f4）的载波子集的数字数据分组（D）的数据位以冗余的方式分配给它们。 通过在发射机（T，T'）和接收机（R，R'）之间通信的分配消息（AM）都知道比特分配中的冗余。 接收机（R，R'）能够测量影响可能受影响的载波子集内的每个载波的窄带干扰（RFI）的量，并且可以重新组合分配给该载波中载波的载波的数据比特 冗余数据位，从而提高抗干扰能力。

公开(公告)号：US06246725B1

公开(公告)日：2001-06-12

申请号：US09087708

申请日：1998-06-01

申请人： Etienne Vanzieleghem ,  Frank Cyriel Michel Defoort ,  Peter Paul Frans Reusens

发明人： Etienne Vanzieleghem ,  Frank Cyriel Michel Defoort ,  Peter Paul Frans Reusens

IPC分类号： H04L2704

CPC分类号： H04L27/2602 ,  H04L27/2626 ,  H04L27/2657

摘要： A telecommunication transmitter (TU) for a multi-carrier transmission system of the Digital Subscriber Line [DSL] type and which includes a coding circuit (MMC) able to generate “symbols” derived from carriers (Cl-Cn) modulated by incoming data, and a line driver circuit (LDC) to amplify these symbols. When idle data are received, the power dissipated in the transmitter is reduced because the symbols are then merely derived from a few or even a single carrier (the “pilot tone”) instead as from all the available carriers. The power dissipated is even more reduced because the line driver circuit is formed by a parallel connection of a high voltage but low efficiency (LL) and a lower voltage but higher performance (LH) line amplifier. The higher performance, and thus less power consuming, amplifier (LH) is used when idle data are received at the input (IN). In a variant, there is only one line amplifier of which the quiescent current is controlled as a function of the data traffic. In another variant, the number of carriers used by the coding circuit (MMC) is a function of the mean traffic of effective data received.

摘要翻译： 一种用于数字用户线路（DSL）类型的多载波传输系统的电信发射机（TU），其包括能够生成由输入数据调制的载波（C1-Cn）导出的“符号”的编码电路（MMC） 以及用于放大这些符号的线路驱动电路（LDC）。 当接收到空闲数据时，发射机消耗的功率减小，因为这些符号然后仅仅从几个甚至单个载波（“导频音”）导出，而不是从所有可用载波中导出。 由于线路驱动器电路由高电压但低效率（LL）和较低电压但较高性能（LH）线路放大器的并联连接形成，因此功率消耗更加降低。 当在输入（IN）处接收到空闲数据时，使用放大器（LH）的更高的性能，因此更少的功耗。 在一个变型中，只有一个线性放大器作为数据业务的函数来控制静态电流。 在另一个变型中，由编码电路（MMC）使用的载波的数量是所接收的有效数据的平均业务量的函数。