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116 条记录 (耗时 0.013 秒)

    Return path noise reducing amplifier with bypass signal
    3.
    发明授权
    Return path noise reducing amplifier with bypass signal 有权

    公开(公告)号：US09654062B2

    公开(公告)日：2017-05-16

    申请号：US14181636

    申请日：2014-02-15

    申请人： PCT International, Inc.

    发明人： Kang Lin ,  Jon-En Wang

    IPC分类号： H03F3/189 ,  H03F3/62 ,  H03F3/72

    CPC分类号： H03F3/189 ,  H03F3/62 ,  H03F3/72 ,  H03F2200/63 ,  H03F2203/7239

    摘要： An amplifier system an amplified path and a bypass path for carrying an RF signal. A switch in the amplified system routes the RF signal through the amplified path in response to a normal condition in the amplifier system, and routes the RF signal through the bypass path in response to an abnormal condition in the amplifier system. The amplified path includes an amplified forward circuit and a return circuit. The amplified forward circuit has an amplifier, and the return circuit has a return amplifier and detection circuitry for providing power to the return amplifier. The detection circuitry provides power to the return amplifier in response to a normal condition in the return circuit, and removes power from the return amplifier in response to an abnormal condition in the return circuit.

    Amplifier Device
    4.
    发明申请
    Amplifier Device 审中-公开
    放大器器件

    公开(公告)号：US20170054423A1

    公开(公告)日：2017-02-23

    申请号：US15118960

    申请日：2014-12-24

    申请人： Technetix B.V.

    发明人： Jan Ariesen ,  Gerrit Boskaljon ,  Martien Rijssemus

    IPC分类号： H03F3/62 ,  H03F1/48

    CPC分类号： H03F3/62 ,  H03F1/486 ,  H03F2200/165 ,  H03F2200/168 ,  H03F2200/63 ,  H04N7/102

    摘要： There is provided an amplifier device for a CATV network comprising a first amplifier element for upstream signals and a second amplifier element for downstream signals, wherein the first and second amplifier elements are disposed between first and second directional couplers. The combined isolation of the first and second directional couplers is greater than the sum of the gain of the first and second amplifier elements. The first directional coupler has one port attached to an input of the downstream amplification element and one port attached to an output of an upstream amplification element (38) and the second directional coupler has one port attached to an output of the downstream amplifier and one port attached to an input of the upstream amplifier.

    摘要翻译： 提供了一种用于CATV网络的放大器装置，其包括用于上游信号的第一放大器元件和用于下游信号的第二放大器元件，其中第一和第二放大器元件设置在第一和第二定向耦合器之间。 第一和第二定向耦合器的组合隔离大于第一和第二放大器元件的增益之和。 第一定向耦合器具有连接到下游放大元件的输入的一个端口和附接到上游放大元件（38）的输出的一个端口，并且第二定向耦合器具有连接到下游放大器的输出的一个端口和一个端口 连接到上游放大器的输入端。

    Input/output interface circuit for digital and/or analog signals
    5.
    发明授权
    Input/output interface circuit for digital and/or analog signals 失效
    用于数字和/或模拟信号的输入/输出接口电路

    公开(公告)号：US5565806A

    公开(公告)日：1996-10-15

    申请号：US262590

    申请日：1994-06-20

    申请人： Paolo Cordini ,  Giorgio Pedrazzini ,  Domenico Rossi

    发明人： Paolo Cordini ,  Giorgio Pedrazzini ,  Domenico Rossi

    IPC分类号： H03K19/018 ,  G06J1/00 ,  H03F3/62 ,  H03F3/68 ,  H03B1/00

    CPC分类号： H03F3/62 ,  G06J1/00

    摘要： The present invention relates to an integrated input/output interface for low and/or high voltage range signals of the digital and/or analog type. It comprises essentially a power amplification circuit block (2) having at least one low voltage range input terminal (A) and at least one high voltage range output terminal (B), and a second amplification circuit block (3) having a high voltage range input terminal connected to said high voltage range output terminal (B) and at least one low voltage range output terminal (D). A conventional circuit block (4) prevents a high voltage range signal being input to said high voltage range terminal (B) from propagating through the first power amplification circuit block (2), so that it only affects the second amplification circuit block (3). This interface is implemented in mixed high voltage bipolar/CMOS/DMOS technology.

    摘要翻译： 本发明涉及用于数字和/或模拟类型的低和/或高电压范围信号的集成输入/输出接口。 它基本上包括具有至少一个低电压范围输入端（A）和至少一个高电压范围输出端（B）的功率放大电路块（2）和具有高电压范围的第二放大电路块（3） 输入端子连接到所述高压范围输出端子（B）和至少一个低电压范围输出端子（D）。 常规电路块（4）防止输入到所述高电压范围端子（B）的高电压范围信号传播通过第一功率放大电路块（2），从而仅影响第二放大电路块（3） 。 该接口采用混合高压双极/ CMOS / DMOS技术实现。

    Symmetric bi-directional amplifier
    6.
    发明授权
    Symmetric bi-directional amplifier 失效
    对称双向放大器

    公开(公告)号：US5105166A

    公开(公告)日：1992-04-14

    申请号：US677365

    申请日：1991-03-26

    申请人： Toshikazu Tsukii ,  S. Gene Houng ,  Manfred J. Schindler

    发明人： Toshikazu Tsukii ,  S. Gene Houng ,  Manfred J. Schindler

    IPC分类号： H03F3/60 ,  H03F3/62

    CPC分类号： H03F3/607 ,  H03F3/62 ,  H03F2200/372

    摘要： A transceiver module includes a bi-directional amplifier having a pair of symmetric signal paths for amplification of both transmit and receive signals is described. The amplifier is a bi-directional amplifier and includes a pair of symmetric signal paths. The amplifier is disposed between a pair of r.f. switches to provide a pair of signal paths between two terminals of the module. A phase shifter is coupled between one of the terminals of the module and one of the r.f. switches, wherein the second terminal of the module is coupled directly to the other one of the pair of switches.

    摘要翻译： 收发器模块包括具有用于放大发送和接收信号两者的一对对称信号路径的双向放大器。 放大器是双向放大器，包括一对对称信号路径。 放大器设置在一对r.f.之间。 开关以在模块的两个端子之间提供一对信号路径。 移相器耦合在模块的一个端子和其中一个r.f. 开关，其中模块的第二端子直接耦合到该对开关中的另一个开关。

    Transformerless telephone line circuit
    7.
    发明授权
    Transformerless telephone line circuit 失效
    无变压器电话线电路

    公开(公告)号：US4178485A

    公开(公告)日：1979-12-11

    申请号：US906772

    申请日：1978-05-17

    申请人： Michael C. J. Cowpland ,  Patrick R. Beirne

    发明人： Michael C. J. Cowpland ,  Patrick R. Beirne

    IPC分类号： H03F3/34 ,  H03F3/45 ,  H03F3/62 ,  H04B1/58 ,  H04M3/00 ,  H04M3/02 ,  H04M19/00 ,  H04Q3/00 ,  H04Q3/42 ,  H04Q3/72 ,  H04Q3/18

    CPC分类号： H04M3/005 ,  H04B1/586 ,  H04M19/005 ,  H04Q3/00

    摘要： A transformerless bidirectional amplifier useful in a balanced two wire to single wire line circuit, which blocks common mode signals and allows full control of signal levels, impedances, etc. A differential amplifier circuit is connected to the balanced wires, and has its output connected through a buffer amplifier to a single unbalanced wire. A second differential amplifier has its respective input terminals connected to the input and output of the buffer amplifier. The output of the second differential amplifier is connected to one of the balanced wires, and through a resistor to one of the inputs of the first differential amplifier which is connected to the other of the two balanced wires. The value of the latter resistor is such as to apply sufficient output signal from the second differential amplifier to the first differential amplifier so as to cancel a signal from the second differential amplifier which is applied to the first differential amplifier via the first wire of the balanced pair. The second differential amplifier exhibits different gains for the respective two signals applied to its individual inputs which are from the output of the first differential amplifier, whereby they are cancelled.

    摘要翻译： 一种无变压器双向放大器，用于平衡双线至单线线路电路，可阻断共模信号，并可完全控制信号电平，阻抗等。差分放大器电路连接到平衡导线，并将其输出连接到 一个缓冲放大器到单个不平衡线。 第二差分放大器的各自的输入端连接到缓冲放大器的输入和输出。 第二差分放大器的输出端连接到一条平衡导线，并通过一个电阻器连接到第一差分放大器的一个输入端，该第一差分放大器的两个平衡导线中的另一个连接。 后一电阻器的值是为了将来自第二差分放大器的足够的输出信号施加到第一差分放大器，以便消除来自第二差分放大器的信号，该信号通过平衡的第一导线施加到第一差分放大器 对。 第二差分放大器对于从其第一差分放大器的输出施加到其各个输入的相应两个信号表现出不同的增益，由此它们被取消。