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1.发明授权Duplex modem for processing data needed for cancelling far-end echo canceller 失效用于处理取消远端回波消除器所需数据的双工调制解调器
公开(公告)号：US5434849A
公开(公告)日：1995-07-18
申请号：US926813
申请日：1992-08-07
CPC分类号： H04B3/237
摘要： A duplex modem for processing data needed for cancelling far-end echo includes at least one high-speed processor of the data pump type performing filtering operations and a microcontroller. The data, corresponding to transmitted data and necessary for cancelling far-end echoes, are stored in a memory associated with and controlled by the microcontroller.
摘要翻译： 用于处理取消远端回波所需的数据的双工调制解调器包括执行滤波操作的数据泵类型的至少一个高速处理器和微控制器。 对应于发送数据的数据和消除远端回波所必需的数据被存储在与微控制器相关联并由其控制的存储器中。
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2.发明授权
公开(公告)号：US5333149A
公开(公告)日：1994-07-26
申请号：US930901
申请日：1992-08-17
CPC分类号： H04L27/01
摘要： A process and a circuit for carrying out the process for adapting coefficients in a modem equalizer comprises a memory cell for storing a coefficient, an adapter receiving the output of the cell and providing a first signal having a first correction, and an adder receiving the first signal and providing a second signal to the cell. The adder also receives a value k much smaller than 1 having the sign provided by a comparator comparing an initial value of the considered coefficient and its current value.
摘要翻译： 用于执行用于在调制解调器均衡器中调整系数的处理的过程和电路包括用于存储系数的存储器单元，接收单元的输出并提供具有第一校正的第一信号的适配器，以及接收第一 信号并向该小区提供第二信号。 加法器还接收一个小于1的值，具有由比较器提供的符号比较考虑的系数的初始值及其当前值。
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公开(公告)号：US20060176748A1
公开(公告)日：2006-08-10
申请号：US11346796
申请日：2006-02-03
申请人： Francois Druilhe , Andrew Cofler , Denis Dutoit , Michel Harrand , Gilles Eyzat , Christian Freund
发明人： Francois 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.
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