Automatic plug-in indicator dimmer
    1.
    发明授权
    Automatic plug-in indicator dimmer 失效
    自动插件指示灯调光

    公开(公告)号:US5929943A

    公开(公告)日:1999-07-27

    申请号:US579941

    申请日:1995-12-28

    CPC classification number: H04N5/63

    Abstract: In a television system, including a standby power supply coupled directly to an AC power input and a main power supply coupled via an on/off switch to the AC power input, a source of light is illuminated at a first brightness level in response to the standby power supply being connected to an AC source and illuminated at a lower brightness level in response to the main power supply being connected to the AC power source.

    Abstract translation: 在电视系统中,包括直接耦合到AC电力输入的备用电源和经由开/关开关耦合到AC电力输入的主电源,响应于第一亮度级别照亮光源 备用电源连接到交流电源,并响应于主电源连接到交流电源而以较低的亮度级亮起。

    Method and apparatus providing high speed video signal limiting
    2.
    发明授权
    Method and apparatus providing high speed video signal limiting 失效
    提供高速视频信号限制的方法和装置

    公开(公告)号:US5640119A

    公开(公告)日:1997-06-17

    申请号:US731723

    申请日:1996-10-17

    CPC classification number: H03G11/002 H04N5/20

    Abstract: An input signal (IN) and a threshold signal (Vt) are coupled to an output terminal (2) via the base-emitter paths of first (Q1) and second (Q2) transistors having respective collector electrodes connected to a supply voltage source (3). The output terminal (2) is coupled to a source of reference potential (4) via a first resistor (Re) and is coupled via a second resistor (Rd) to a selected plate of a capacitor (C1) that is connected between the collector and base electrodes of the second transistor (Q2). Circuit impedances are scaled such that Re>Rd>R1 wherein Re and Rd are the values of the first and second resistors, respectively, and R1 is a component of the output impedance of the threshold signal source (5).

    Abstract translation: 输入信号(IN)和阈值信号(Vt)经由第一(Q1)和第二(Q2)晶体管的基极 - 发射极路径耦合到输出端子(2),其具有连接到电源电压源 3)。 输出端子(2)经由第一电阻器(Re)耦合到参考电位源(4),并通过第二电阻器(Rd)耦合到电容器(C1)的选定板,该电容器连接在集电器 和第二晶体管(Q2)的基极。 电路阻抗被缩放,使得Re> Rd> R1其中Re和Rd分别是第一和第二电阻器的值,​​R1是阈值信号源(5)的输出阻抗的分量。

    Focus flutter prevention in TV receivers and monitors
    3.
    发明授权
    Focus flutter prevention in TV receivers and monitors 失效
    在电视接收机和显示器中防焦点

    公开(公告)号:US06636265B1

    公开(公告)日:2003-10-21

    申请号:US09589212

    申请日:2000-06-07

    CPC classification number: H04N3/26

    Abstract: An inventive method for preventing focus flutter display in a TV receiver or monitor includes the steps of amplifying a received signal for driving cathode elements of a cathode ray tube, and delaying initial full amplification of the signal during the amplifying step for a duration sufficient to prevent focus flutter display on the tube. A corresponding inventive kine driver circuit that prevents display of focus flutter includes an amplifier for amplifying and coupling received video signals to cathode elements of a picture tube, and a control circuit for delaying full amplification of the video signals to be fed to the cathode elements for a duration sufficient to prevent focus flutter display on the tube.

    Abstract translation: 用于防止TV接收机或监视器中的焦点颤动显示的创新方法包括放大用于驱动阴极射线管的阴极元件的接收信号的步骤,以及在放大步骤期间延迟信号的初始完全放大持续足以防止 焦点颤动显示在管上。 防止聚焦颤动显示的相应的发明的激光驱动器电路包括用于将接收的视频信号放大并耦合到显像管的阴极元件的放大器,以及用于延迟要馈送到阴极元件的视频信号的完全放大的控制电路, 足以防止管上的聚焦颤动显示的持续时间。

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