Automatic brightness limitation for avoiding video signal clipping
    1.
    发明授权
    Automatic brightness limitation for avoiding video signal clipping 有权
    自动亮度限制,用于避免视频信号剪辑

    公开(公告)号:US07154563B1

    公开(公告)日:2006-12-26

    申请号:US09674355

    申请日:1998-04-30

    IPC分类号: H04N9/68

    摘要: A brightness limitation system is employed in a television circuit to prevent the black reference voltage level and the video signal from entering a minimum signal clipping zone, to provide precise correction signal, limiting the brightness, to maintain a constant black reference voltage level, and maintain a video signal with dynamic amplitude. The brightness limitation circuit detects a minimum signal level amongst the black reference signals from each color channel and compares the minimum signal with a fixed voltage level to generate a brightness feedback signal. The brightness feedback signal is then used to modify the black reference signal level for each color channel.

    摘要翻译: 在电视电路中采用亮度限制系统,以防止黑色参考电压电平和视频信号进入最小信号限幅区域,提供精确的校正信号,限制亮度,以保持恒定的黑色参考电压电平,并维持 具有动态幅度的视频信号。 亮度限制电路检测来自每个颜色通道的黑色参考信号中的最小信号电平,并将最小信号与固定电压电平进行比较,以产生亮度反馈信号。 然后,亮度反馈信号用于修改每个颜色通道的黑色参考信号电平。

    Wire rod rolling line
    2.
    发明授权
    Wire rod rolling line 失效
    线材轧制线

    公开(公告)号:US06405573B1

    公开(公告)日:2002-06-18

    申请号:US09647355

    申请日:2000-11-02

    IPC分类号: B21B1312

    摘要: The present invention relates to a wire rod rolling line in which a finishing mill group rear stage is composed of a combination of a plurality of 4-roll mills. An object of the present invention is to provide a wire rod rolling line having a very high operating ratio capable of expanding a size free rolling range and at the same time capable of arranging pass schedules in which the pass schedule of an upstream pass is simplified in order to shorten a line stop time for adjusting mills. To achieve the object, the wire rod rolling line of the present invention is arranged such that three mills from the end of the finishing mill group are 4-roll mills, these three mills are installed in series with the reducing directions thereof dislocated by 45°, the two mills from the end are driven by a common motor and the third 4-roll mill from the end is separately driven.

    摘要翻译: 线材轧制线技术领域本发明涉及精轧机组后台由多个4辊轧机的组合构成的线材轧制线。 本发明的目的是提供一种具有非常高的工作比的线材轧制线,其能够扩大自由轧制范围,同时能够布置通过时间表,其中上游通过的通行时间表被简化 以缩短调整车间的停车时间。 为了实现该目的,本发明的线材轧制线设置成从精轧机组的端部的三台轧机为4辊轧机,将这三台轧机与其脱离45度的还原方向串联安装 ,最后的两台铣刀由普通马达驱动,第三台四辊磨机分别驱动。

    Roll stand for bar and wire rod rolling mill
    3.
    发明授权
    Roll stand for bar and wire rod rolling mill 有权
    轧机机架用于棒材和线材轧机

    公开(公告)号:US06397650B1

    公开(公告)日:2002-06-04

    申请号:US09719814

    申请日:2000-12-18

    IPC分类号: B21B1310

    摘要: The present invention relates to a roll stand for bar and wire rod rolling mill, capable of being applied to various sizes of bars and wire rods by a small number of housing block sets, permitting maintenance work therefor to be carried out easily, and having characteristics in the housing thereof. The roll stand for bar and wire rod rolling mill according to the present invention is characterized in that the housing is divided into two, i.e. a roll block and a driving block by a plane including a position in which a driving gear and a driven gear are meshed with each other or a position in the vicinity of this position, whereby the number of housing block sets to be prepared is reduced. This enables the housing manufacturing cost to be lowered, and the replacement of a roll to be carried out efficiently.

    摘要翻译: 本发明涉及一种用于棒材和线材轧机的轧机机架,其能够通过少量的壳体组件应用于各种尺寸的棒材和线材,从而容易进行维护工作,并具有特性 在其外壳中。 根据本发明的棒材和线材轧机的轧机机架的特征在于,壳体通过包括驱动齿轮和从动齿轮的位置的平面被分成两部分,即轧辊块和驱动块 彼此啮合或该位置附近的位置,由此减少要准备的容纳块组的数量。 这使得能够降低壳体制造成本,并且有效地进行辊的更换。