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    A telephone
    2.
    发明公开
    A telephone 有权
    Telephon

    公开(公告)号：EP1128654A1

    公开(公告)日：2001-08-29

    申请号：EP00830123.6

    申请日：2000-02-22

    Applicant: STMicroelectronics S.r.l.

    Inventor： Tomasini, Luciano ,  Clerici, Giancarlo

    IPC: H04M19/08 ,  H04M1/74

    CPC classification number: H04M19/08 ,  H04M1/74

    Abstract: A telephone (100) comprises an acoustic alarm (125), conversation members (110), first control means (230a, 420) for the acoustic alarm, second control means (250a, 420) for the conversation members, first supply means (220, T1, Cl) and second supply means (240, T2, C, Ts, 405, 410) for absorbing energy from a telephone line (205), the first supply means (220, T1, C1) and the second supply means (240, T2, C, Ts, 405, 410) supplying the first control means (230a, 420) in a call condition and the second control means (250a, 420) in a conversation condition, respectively, wherein the first supply means (220, T1, C1) further supply the second control means (250a, 420) in the call condition.

    Abstract translation: 电话机（100）包括声音报警器（125），通话构件（110），用于声音报警器的第一控制装置（230a，420），用于对话构件的第二控制装置（250a，420），第一提供装置 ，T1，C1）和用于从电话线（205）吸收能量的第二供给装置（240，T2，C，Ts，405,410），第一供应装置（220，T1，C1）和第二供应装置 240，T2，C，Ts，405,410），分别在通话状态下提供第一控制装置（230a，420）和第二控制装置（250a，420），其中第一供应装置 ，T1，C1）进一步向所述呼叫状态提供所述第二控制装置（250a，420）。

    An output buffer for digital signals
    3.
    发明公开
    An output buffer for digital signals 审中-公开
    Ausgangspufferfürdigitale Signale

    公开(公告)号：EP1091492A1

    公开(公告)日：2001-04-11

    申请号：EP99830634.4

    申请日：1999-10-08

    Applicant: STMicroelectronics S.r.l.

    Inventor： Tomasini, Luciano ,  Clerici, Giancarlo

    IPC: H03K19/003 ,  H03K17/16

    CPC classification number: H03K19/00361 ,  H03K17/166 ,  H03K19/00384

    Abstract: The buffer comprises means (20) for reducing the slope of the input signal (Vin) and a negative feedback circuit (22) which generates a regulating signal dependent on the variation of the output signal (Vout) and applies the regulating signal (If) to the input of the buffer.
    A precise regulation of the slope, independent of variations in the production process and of environmental conditions, is achieved.

    Abstract translation: 缓冲器包括用于减小输入信号（Vin）的斜率的装置（20）和负反馈电路（22），该负反馈电路根据输出信号（Vout）的变化产生调节信号，并施加调节信号（If） 到缓冲区的输入。 实现斜率的精确调节，与生产过程和环境条件的变化无关。

    Voltage follower circuit
    4.
    发明公开
    Voltage follower circuit 审中-公开
    Spannungsfolgerschaltung

    公开(公告)号：EP1041713A1

    公开(公告)日：2000-10-04

    申请号：EP99830180.8

    申请日：1999-03-30

    Applicant: STMicroelectronics S.r.l.

    Inventor： Tomasini, Luciano ,  Clerici, Giancarlo

    IPC: H03F3/30

    CPC classification number: H03F3/3071 ,  H03F3/3001

    Abstract: A first NPN transistor (Q 1 ) is connected in the emitter follower configuration with a first PNP transistor (Q 2 ) as the load element. A second NPN transistor (Q 3 ), in series with a second PNP transistor (Q 4 ) connected in diode mode and a current generator (Go), has its base connected to the base of the first NPN transistor (Q1), which is also the input terminal (IN) of the circuit. The base of the first PNP transistor (Q 2 ) is connected to the connection node (N) between the second PNP transistor (Q 4 ) and the current generator (Go).
    The circuit behaves as an excellent voltage follower with any type of load and requires a negligible use of area when it is formed as part of an integrated circuit.

    Abstract translation: 第一NPN晶体管（Q1）以射极跟随器配置连接有第一PNP晶体管（Q2）作为负载元件。 与二极管模式连接的第二PNP晶体管（Q4）和电流发生器（Go）串联的第二NPN晶体管（Q3）的基极连接到第一NPN晶体管（Q1）的基极，其也是 电路的输入端（IN）。 第一PNP晶体管（Q2）的基极连接到第二PNP晶体管（Q4）和电流发生器（Go）之间的连接节点（N）。 该电路作为具有任何类型负载的优异的电压跟随器，并且当其形成为集成电路的一部分时，需要可忽略的面积使用。

    An operational amplifier with high gain and sysmmetrical output-current capabilty
    5.
    发明公开
    An operational amplifier with high gain and sysmmetrical output-current capabilty 审中-公开
    EinOperationsverstärkermit hoherVerstärkungund symmetricrischem Ausgangsstrom

    公开(公告)号：EP1124326A1

    公开(公告)日：2001-08-16

    申请号：EP00830091.5

    申请日：2000-02-09

    Applicant: STMicroelectronics S.r.l.

    Inventor： Tomasini, Luciano ,  Clerici, Giancarlo

    IPC: H03F3/30

    CPC classification number: H03F3/3001

    Abstract: An operational amplifier comprises a first stage (2) and a second stage (3) with an input connected to an output (V oi ) of the first stage (2) and an output (Out) connectible to a load (RL), the second stage (3) comprising, between its input and its output, a first signal path (M 5 ) for driving the load (RL) in a first direction, and a second signal path (M 8 , M 3 , M 1 , M 2 , M 4 ) for driving the load (RL) in the opposite direction. The first and second signal paths have substantially equal gains for small signals, substantially equal output impedances for small and large signals, and substantially equal output-current capabilities.

    Abstract translation: 运算放大器包括具有连接到第一级（2）的输出（Vo1）的输入和可连接到负载（RL）的输出（Out）的第一级（2）和第二级（3），第二级 在其输入和输出之间包括用于沿第一方向驱动负载（RL）的第一信号路径（M5）和用于驱动的​​第二信号路径（M8，M3，M1，M2，M4） 负载（RL）在相反的方向。 第一和第二信号路径对于小信号具有基本上相等的增益，对于小信号和大信号基本相等的输出阻抗以及基本相等的输出电流能力。

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