公开(公告)号：US07486582B2

公开(公告)日：2009-02-03

申请号：US11346796

申请日：2006-02-03

申请人： François Druilhe ,  Andrew Cofler ,  Denis Dutoit ,  Michel Harrand ,  Gilles Eyzat ,  Christian Freund

发明人： François Druilhe ,  Andrew Cofler ,  Denis Dutoit ,  Michel Harrand ,  Gilles Eyzat ,  Christian Freund

IPC分类号： G11C7/00

CPC分类号： G11C11/406 ,  G11C2211/4061 ,  G11C2211/4067

摘要： A DRAM and its application to a mobile telephony circuit with a control circuit including a first refreshment controller controlled by a first clock signal and a second refreshment controller controlled by a second clock signal having a frequency less than that of the first one and used to synchronize events of the GSM network.

摘要翻译： 一种DRAM及其在具有控制电路的移动电话电路中的应用，该控制电路包括由第一时钟信号控制的第一更新控制器和由具有小于第一时钟信号频率的第二时钟信号控制的第二更新控制器，并且用于同步 GSM网络的事件。

公开(公告)号：US06452967B1

公开(公告)日：2002-09-17

申请号：US09251839

申请日：1999-02-17

申请人： François Druilhe

发明人： François Druilhe

IPC分类号： H03H730

CPC分类号： H04Q11/0442 ,  H04Q2213/13166 ,  H04Q2213/1319 ,  H04Q2213/13203 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/13292 ,  H04Q2213/13302 ,  H04Q2213/1332 ,  H04Q2213/13322

摘要： A method for reducing disturbing effects of coupling between a first transmission/reception device and a second transmission/reception device that are each connected to a subscriber line. According to the method, a signal received on a reception path of the first device is delayed by a delay equal to p times the transmission period. A coupling signal relating to a transmission path of a second device and the reception path of the first device is estimated based on a signal transmitted over the transmission path of the second device, and the delayed signal is ridded of the estimated coupling signal. Additionally, a device for transmitting/receiving a signal is provided. The device includes a memory coupled to a reception path for temporarily storing p symbols, a subtraction circuit, and a coupling estimation block. The coupling estimation block includes an adaptive filter with n (n>p) coupling coefficients and an estimation circuit that receives an ancillary transmission signal of another transmission/reception device. The estimation circuit and adaptive filter successively determine the n coupling coefficients as a function of the ancillary transmission signal and sum the coupling coefficients successively so as to deliver a coupling signal that is representative of estimated coupling between the reception path and the transmission path of the other device. The subtraction circuit receives an output of the memory and an output of the coupling estimation block.

摘要翻译： 一种用于减少每个连接到用户线的第一发送/接收装置和第二发送/接收装置之间的耦合的干扰效果的方法。 根据该方法，在第一装置的接收路径上接收的信号被延迟等于传输周期的p倍的延迟。 基于通过第二设备的传输路径发送的信号来估计与第二设备的传输路径和第一设备的接收路径相关的耦合信号，并且延迟的信号被舍弃在估计的耦合信号上。 另外，提供了用于发送/接收信号的装置。 该装置包括耦合到用于临时存储p个符号的接收路径的存储器，减法电路和耦合估计块。 耦合估计块包括具有n（n> p）个耦合系数的自适应滤波器和接收另一个发射/接收装置的辅助发射信号的估计电路。 估计电路和自适应滤波器依次确定n个耦合系数作为辅助传输信号的函数，并连续求和耦合系数，以便传递代表接收路径与其他传输路径之间估计耦合的耦合信号 设备。 减法电路接收存储器的输出和耦合估计块的输出。