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    Integrator circuit
    1.
    发明授权
    Integrator circuit 失效
    集成电路

    公开(公告)号：US3832536A

    公开(公告)日：1974-08-27

    申请号：US29278172

    申请日：1972-09-27

    Applicant: CIT ALCATEL

    Inventor： LE DILY C ,  LAJOTTE D

    IPC: G06G7/18 ,  G06G7/186 ,  G06G7/25

    CPC classification number: G06G7/18 ,  G06G7/186 ,  G06G7/25

    Abstract: Integrator comprising an operational amplifier having an input (E1)(-) and an input (E2)(+), and an output (S), with a resistance having a value of (R1) connected up between the input (E2) and the earth, a capacitor shunted by a resistor having an ohmic value of (R2) between the output (S) and the ihput (E1), the input voltage being applied to the input (E1) through a resistor having a value of R1), characterized in that the output (S) is connected up to the input (E2) by a network comprising two diodes connected up head to tail in parallel, in series with a resistor having an ohmic value equal to (R2).

    Abstract translation: 积分器包括具有输入（E1）（ - ）和输入（E2）（+）的运算放大器和输出（S），其中电阻具有连接在输入（E2）和 地线，由输出（S）和输出（E1）之间的欧姆值（R2）的电阻器分流的电容器，输入电压通过具有值R1的电阻施加到输入端（E1） 其特征在于，输出（S）通过网络连接到输入端（E2），该网络包括并联连接的头二尾二极管，与欧姆值等于（R2）的电阻串联。

    5.
    发明专利
    未知

    公开(公告)号：DK142667C

    公开(公告)日：1981-08-17

    申请号：DK227375

    申请日：1975-05-23

    Applicant: COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL

    Inventor： SOURGENS J ,  LAJOTTE D ,  MICHELON F

    IPC: H04B3/23

    Abstract: Echo canceller, canceling an echo signal y (t), generated by a signal x (t), comprising a transversal digital filter whose N weighting coefficients Ci, correlated with N coded samples of x (t) enable the forming of a synthetic echo signal y (t) and comprising an adaptive control loop adjusting the coefficients Ci, characterized in that the adaptive control loops effects the correlation between the signs of the N coded samples of x (t) and of the residual echo signal gamma (t) and determines the correction DELTA Ci adjusting the coefficients Ci by multiplication of the residual signal ¦ epsilon (t) ¦ by a coefficient alpha close to zero accompanied by the sign of the aforementioned correlation of signs.

    6.
    发明专利
    未知

    公开(公告)号：SE402688B

    公开(公告)日：1978-07-10

    申请号：SE7505900

    申请日：1975-05-23

    Applicant: CIT ALCATEL

    Inventor： SOURGENS J ,  LAJOTTE D ,  MICHELON F

    IPC: H04B3/23 ,  H04B3/20

    Abstract: Echo canceller, canceling an echo signal y (t), generated by a signal x (t), comprising a transversal digital filter whose N weighting coefficients Ci, correlated with N coded samples of x (t) enable the forming of a synthetic echo signal y (t) and comprising an adaptive control loop adjusting the coefficients Ci, characterized in that the adaptive control loops effects the correlation between the signs of the N coded samples of x (t) and of the residual echo signal gamma (t) and determines the correction DELTA Ci adjusting the coefficients Ci by multiplication of the residual signal ¦ epsilon (t) ¦ by a coefficient alpha close to zero accompanied by the sign of the aforementioned correlation of signs.

    7.
    发明专利
    未知

    公开(公告)号：BR7503278A

    公开(公告)日：1976-04-27

    申请号：BR7504191

    申请日：1975-05-23

    Applicant: CIT ALCATEL

    Inventor： SOURGENS J ,  LAJOTTE D ,  MICHELON F

    IPC: H04B3/23 ,  H04B3/20

    Abstract: Echo canceller, canceling an echo signal y (t), generated by a signal x (t), comprising a transversal digital filter whose N weighting coefficients Ci, correlated with N coded samples of x (t) enable the forming of a synthetic echo signal y (t) and comprising an adaptive control loop adjusting the coefficients Ci, characterized in that the adaptive control loops effects the correlation between the signs of the N coded samples of x (t) and of the residual echo signal gamma (t) and determines the correction DELTA Ci adjusting the coefficients Ci by multiplication of the residual signal ¦ epsilon (t) ¦ by a coefficient alpha close to zero accompanied by the sign of the aforementioned correlation of signs.

    10.
    发明专利
    未知

    公开(公告)号：SE7505900L

    公开(公告)日：1975-11-25

    申请号：SE7505900

    申请日：1975-05-23

    Applicant: CIT ALCATEL

    Inventor： SOURGENS J ,  LAJOTTE D ,  MICHELON F

    IPC: H04B3/23 ,  H04B3/20

    Abstract: Echo canceller, canceling an echo signal y (t), generated by a signal x (t), comprising a transversal digital filter whose N weighting coefficients Ci, correlated with N coded samples of x (t) enable the forming of a synthetic echo signal y (t) and comprising an adaptive control loop adjusting the coefficients Ci, characterized in that the adaptive control loops effects the correlation between the signs of the N coded samples of x (t) and of the residual echo signal gamma (t) and determines the correction DELTA Ci adjusting the coefficients Ci by multiplication of the residual signal ¦ epsilon (t) ¦ by a coefficient alpha close to zero accompanied by the sign of the aforementioned correlation of signs.

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