公开(公告)号：US20020118063A1

公开(公告)日：2002-08-29

申请号：US10026434

申请日：2001-12-27

Applicant: ALCATEL

Inventor： Francois Jeanjean ,  Rudi Verbist

IPC: H03F003/45

CPC classification number: H03F3/347

Abstract: A differential output amplifier arrangement (DOA) comprises two operational amplifier (OA1, OA2) each having a feedback resistor (R2, R4). A pair of output resistors (R1, R3) couples the output terminals (OUT1, OUT2) of the operational amplifiers (OA1, OA2) to respective output terminals (ZOUT1, ZOUT2) of the arrangement (DOA), and a pair of input terminals (R7, R8) couples input terminals (IN1, IN2) of the arrangement (DOA) to negative polarity type input terminals (INN1, INN2) of the respective operational amplifiers (OA1, OA2). The positive polarity type input terminals (INP1, INP2) of the operational amplifiers (OA1, OA2) are grounded. Two additional resistors (R5, R6) cross-couple the output terminals (ZOUT1, ZOUT2) of the arrangement (DOA) to the negative polarity type input terminals (INN2, INN1) of the cross-coupled operational amplifiers (OA2, OA1).

Abstract translation: 差分输出放大器装置（DOA）包括每个具有反馈电阻器（R2，R4）的两个运算放大器（OA1，OA2）。 一对输出电阻器（R1，R3）将运算放大器（OA1，OA2）的输出端子（OUT1，OUT2）耦合到配置（DOA）的各个输出端子（ZOUT1，ZOUT2）和一对输入端子 （R7，R8）将布置（DOA）的输入端子（IN1，IN2）耦合到各个运算放大器（OA1，OA2）的负极型输入端子（INN1，INN2）。 运算放大器（OA1，OA2）的正极性输入端子（INP1，INP2）接地。 两个附加电阻器（R5，R6）将布置（DOA）的输出端子（ZOUT1，ZOUT2）交叉耦合到交叉耦合运算放大器（OA2，OA1）的负极型输入端子（INN2，INN1）。

公开(公告)号：US20030155994A1

公开(公告)日：2003-08-21

申请号：US10337781

申请日：2003-01-08

Applicant: ALCATEL

Inventor： Francois Jeanjean ,  Geert Arthur Edith Van Wonterghem

IPC: H03H007/01

CPC classification number: H03H7/1766 ,  H03H7/06 ,  H03H7/427 ,  H03H2260/00

Abstract: A passive filter arrangement and a method of providing such a filter is described. The frequency response of the filter arrangement is substantially the same as the frequency response of a first filter of an order having a first value, the frequency response of the first filter being representable by a first set of one or more poles and/or one or more zeros. Descriptions of a plurality of second filters are generated, each second filter having an order lower than the order of the first value, each second filter having a frequency response representable by a one or more poles and/or one or more zeros, the one or more poles and/or one or more zeros of each lower order filter being a subset of the first set. The lower order filters are cascaded.

Abstract translation: 描述了一种无源滤波器装置和提供这种滤波器的方法。 滤波器装置的频率响应基本上与具有第一值的次序的第一滤波器的频率响应基本相同，第一滤波器的频率响应可由第一组一个或多个极和/或一个或多个极表示， 更多零。 产生多个第二滤波器的描述，每个第二滤波器具有低于第一值的次序的顺序，每个第二滤波器具有可由一个或多个极和/或一个或多个零表示的频率响应， 每个低阶滤波器的多个极点和/或一个或多个零点是第一组的子集。 低阶滤波器级联。

公开(公告)号：US20020054599A1

公开(公告)日：2002-05-09

申请号：US09985857

申请日：2001-11-06

Applicant: ALCATEL

Inventor： Francois Jeanjean ,  Etienne Vanzieleghem

IPC: H04L012/56

CPC classification number: H04M11/062 ,  H01R2201/04 ,  H04L2012/5615

Abstract: In a device (ADSL_MODEM2) having Ethernet interfacing capability and ATMForum interfacing capability, a single connector (ETH/ATMF_CON) with four pairs of pins (P1, P2, P3, P4) is provided. This connector (ETH/ATMF_CON) is able to interface with an Ethernet plug and to interface with an ATMForum plug.

Abstract translation: 在具有以太网接口能力和ATMForum接口功能的设备（ADSL_MODEM2）中，提供了具有四对引脚（P1，P2，P3，P4）的单个连接器（ETH / ATMF_CON）。 该连接器（ETH / ATMF_CON）能够与以太网插头进行接口并与ATMForum插头进行接口。