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    Signal processing circuit for a color television receiver
    1.
    发明授权
    Signal processing circuit for a color television receiver 失效
    彩色电视接收机的信号处理电路

    公开(公告)号：US3833823A

    公开(公告)日：1974-09-03

    申请号：US36043173

    申请日：1973-05-15

    Applicant: MOTOROLA INC

    Inventor： CECCHIN G ,  HILBERT F

    IPC: H04N9/68 ,  H03K9/02

    CPC classification number: H04N9/68

    Abstract: A color television receiver uses an integrated circuit to provide the subcarrier reference signals and ACC control voltage for the receiver. The circuit includes a first differential amplifier, unbalanced at the burst signal frequency, operated as the color reference oscillator to provide first and second differently phased output signals which are applied to a pair of differential steering gates. A phase-shift hue control of the color reference signal is obtained by adding selected outputs of the pair of differential steering gates. In addition, a differential amplifier is operated as a diodeless detector for deriving an ACC voltage from the oscillator output when burst signals are applied to the input of the oscillator.

    Abstract translation: 彩色电视接收机使用集成电路为接收机提供子载波参考信号和ACC控制电压。 该电路包括在突发信号频率处不平衡的第一差分放大器，作为颜色参考振荡器操作，以提供施加到一对差动转向门的第一和第二不同相位的输出信号。 通过添加该对差动转向门的选定输出来获得彩色参考信号的相移色调控制。 此外，差分放大器作为二体检测器操作，用于当突发信号施加到振荡器的输入端时从振荡器输出导出ACC电压。

    Signal processing circuit for a color television receiver
    2.
    发明授权
    Signal processing circuit for a color television receiver 失效

    公开(公告)号：US3781701A

    公开(公告)日：1973-12-25

    申请号：US3781701D

    申请日：1971-03-04

    Applicant: MOTOROLA INC

    Inventor： CECCHIN G ,  HILBERT F

    IPC: H04N9/64 ,  H04N9/71 ,  H03F3/68

    CPC classification number: H04N9/643 ,  H04N9/71

    Abstract: A color television receiver uses an integrated circuit to provide the subcarrier reference signals and ACC control voltage for the receiver. The circuit includes a first differential amplifier, unbalanced at the burst signal frequency, operated as the color reference oscillator to provide first and second differently phased output signals which are applied to a pair of differential steering gates. A phase-shift hue control of the color reference signal is obtained by adding selected outputs of the pair of differential steering gates. In addition, a differential amplifier is operated as a diodeless detector for deriving an ACC voltage from the oscillator output when burst signals are applied to the input of the oscillator.

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