Motion detector for chrominance signal in TV receiver
    1.
    发明授权
    Motion detector for chrominance signal in TV receiver 失效
    电视接收机色度信号运动检测器

    公开(公告)号:US4736252A

    公开(公告)日:1988-04-05

    申请号:US932376

    申请日:1986-11-20

    CPC分类号: H04N5/144

    摘要: A motion detector for a chrominance signal which is used with a TV receiver equipped with a video signal motion detector. This motion detector for a chrominance signal has a delay element for delaying the chrominance signal of a video signal by 1 frame period, a subtractor for subtracting the output signal of the delay element from the input signal thereof, an absolute value conversion circuit to which the output signal from the subtractor is inputted, and a smoother circuit to which the output signal from the absolute value conversion circuit is supplied. If the chrominance signals of video signals on two consecutive frames are the same, the output signal of the subtractor becomes zero. If the chrominance signals of video signals on two consecutive frames are different, the output signal of the substractor takes a positive or negative value. The negative value signal is converted into a positive value signal by the absolute value conversion circuit. A signal is outputted from the smoother circuit only when the chrominance signals of video signals on two consecutive frames are different. This outputted signal is a chrominance signal motion detection signal. The luminance signal contained in a video signal is removed from the video signal using a comb-type filter.

    摘要翻译: 用于与配备有视频信号运动检测器的TV接收机一起使用的色度信号的运动检测器。 用于色度信号的运动检测器具有用于将视频信号的色度信号延迟1帧周期的延迟元件,用于从其输入信号中减去延迟元件的输出信号的减法器,绝对值转换电路, 输入来自减法器的输出信号,并且提供来自绝对值转换电路的输出信号的平滑电路。 如果两个连续帧上的视频信号的色度信号相同,则减法器的输出信号变为零。 如果两个连续帧上的视频信号的色度信号不同,则减法器的输出信号为正或负值。 负值信号由绝对值转换电路转换为正值信号。 仅当两个连续帧上的视频信号的色度信号不同时才从平滑电路输出信号。 该输出信号是色度信号运动检测信号。 使用梳状滤波器从视频信号中去除包含在视频信号中的亮度信号。

    Motion detector for chrominance signal in TV receiver
    2.
    发明授权
    Motion detector for chrominance signal in TV receiver 失效
    电视接收机色度信号运动检测器

    公开(公告)号:US4775888A

    公开(公告)日:1988-10-04

    申请号:US143336

    申请日:1988-01-13

    IPC分类号: H04N5/14 H04N9/64 H04N5/21

    CPC分类号: H04N5/144

    摘要: A motion detector for a chrominance signal which is used with a TV receiver equipped with a video signal motion detector. This motion detector for a chrominance signal has a delay element for delaying the chrominance signal of a video signal by 1 frame period, a subtracter for subtracting the output signal of the delay element from the input signal thereof, an absolute value conversion circuit to which the output signal from the subtracter is inputted, and a smoother circuit to which the output signal from the absolute value conversion circuit is supplied. If the chrominance signal of video signals on two consecutive frames are the same, the output signal of the subtracter becomes zero. If the chrominance signals of video signals on two consecutive frames are different, the output signal of the subtracter takes a positive or negative value. The negative value signal is converted into a positive value signal by the absolute value conversion circuit. A signal is outputted from the smoother circuit only when the chrominance signals of video signals on two consecutive frames are different. This outputted signal is a chrominance signal motion detection signal.The luminance signal contained in a video signal is removed from the video signal using a comb-type filter.

    摘要翻译: 用于与配备有视频信号运动检测器的TV接收机一起使用的色度信号的运动检测器。 用于色度信号的运动检测器具有用于将视频信号的色度信号延迟1帧周期的延迟元件,用于从其输入信号中减去延迟元件的输出信号的减法器,绝对值转换电路, 输入来自减法器的输出信号,并且提供来自绝对值转换电路的输出信号的平滑电路。 如果两个连续帧上的视频信号的色度信号相同,则减法器的输出信号变为零。 如果两个连续帧上的视频信号的色度信号不同,则减法器的输出信号取正值或负值。 负值信号由绝对值转换电路转换为正值信号。 仅当两个连续帧上的视频信号的色度信号不同时才从平滑电路输出信号。 该输出信号是色度信号运动检测信号。 使用梳状滤波器从视频信号中去除包含在视频信号中的亮度信号。

    Movement detection circuit of a video signal used in a television
receiver
    3.
    发明授权
    Movement detection circuit of a video signal used in a television receiver 失效
    在电视接收机中使用的视频信号的移动检测电路

    公开(公告)号:US4794454A

    公开(公告)日:1988-12-27

    申请号:US105013

    申请日:1987-10-06

    CPC分类号: H04N9/646

    摘要: A movement detection circuit for detecting movement information of a luminance signal and movement information of a chrominance signal of a television signal comprises a first movement detection circuit for detecting the movement information of the luminance signal and a second movement detection circuit for detecting the movement information of the chrominance signal. The first movement detection circuit detects the movement information of the luminance signal based on two signals spaced by one frame period, and the second movement detection circuit detects the movement information of the chrominance signal based on two signals spaced by two frames periods.

    摘要翻译: 用于检测亮度信号的运动信息和电视信号的色度信号的移动信息的移动检测电路包括:用于检测亮度信号的移动信息的第一移动检测电路和用于检测亮度信号的运动信息的第二移动检测电路, 色度信号。 第一移动检测电路基于间隔一帧周期的两个信号来检测亮度信号的移动信息,第二移动检测电路基于间隔两帧周期的两个信号来检测色度信号的移动信息。

    Video signal processing circuit of motion adaptive type
    4.
    发明授权
    Video signal processing circuit of motion adaptive type 失效
    运动自适应型视频信号处理电路

    公开(公告)号:US4733297A

    公开(公告)日:1988-03-22

    申请号:US36431

    申请日:1987-04-09

    CPC分类号: H04N5/144 H04N7/012 H04N9/78

    摘要: A video signal processing circuit of motion adaptive type includes a circuit for identifying motion of a picture in a video signal on the basis of a difference signal between at least a line signal appearing in an M-th field and a corresponding line signal appearing in an (M-1)th field so that, when a scanning line produced on the basis of the video signal is interpolated between scanning lines of the video signal to improve the picture quality, a signal for interpolating said scanning line is produced in a different manner depending on whether a portion of the video signal to the displayed is a still picture or a moving picture. The motion identifying circuit comprises a horizontal filter spreading the difference signal in the horizontal direction, a circuit delaying the output signal of the horizontal filter by one field after attenuation, a line memory delaying the output signal of the attenuating and delaying circuit by one line, and an output circuit generating a signal identifying the motion of the picture on the basis of the output signals of the horizontal filter, attenuating and delaying circuit and line memory.

    摘要翻译: 运动自适应型视频信号处理电路包括一个电路,用于根据出现在第M场的线路信号和出现在第M场的相应线路信号之间的差分信号识别视频信号中的图像的运动 (M-1)场,使得当基于视频信号产生的扫描线被内插在视频信号的扫描线之间以提高图像质量时,以不同的方式产生用于内插所述扫描线的信号 取决于所显示的视频信号的一部分是静止图像还是运动图像。 运动识别电路包括在水平方向上扩展差分信号的水平滤波器,将衰减后的水平滤波器的输出信号延迟一个场的电路,将存储器的衰减延迟电路的输出信号延迟一行, 以及输出电路,其基于水平滤波器的输出信号,衰减和延迟电路和行存储器来产生识别图像的运动的信号。

    Apparatus for receiving wide/standard picture plane television signal
    5.
    发明授权
    Apparatus for receiving wide/standard picture plane television signal 失效
    用于接收宽/标准图像平面电视信号的装置

    公开(公告)号:US5353065A

    公开(公告)日:1994-10-04

    申请号:US899040

    申请日:1992-06-16

    摘要: Disclosed is a wide picture plane/standard picture plane television signal receiving apparatus which comprises: a first signal processing circuit for doubling the scanning speed of an input standard television signal; an aspect ratio conversion circuit for converting a display aspect ratio of the double scanning speed television signal from the first signal processing circuit into a wide aspect ratio; a second signal processing circuit for processing an input EDTV television signal into a double scanning speed television signal with a wide aspect ratio; a first signal selection circuit for selecting one of the respective output signals from the aspect ratio conversion circuit and the second signal processing circuit; a wide aspect display device for displaying the selected output signal from the first signal selection circuit; an EDTV signal detection circuit for detecting the processing effected on the EDTV signal in the second signal processing circuit to thereby switch the contact of the first signal selection circuit to its second signal processing circuit side from its first signal processing circuit side.

    摘要翻译: 公开了一种宽画面/标准画面电视信号接收装置,包括:第一信号处理电路,用于使输入的标准电视信号的扫描速度加倍; 用于将来自第一信号处理电路的双倍扫描速度电视信号的显示宽高比转换成宽宽比的宽高比转换电路; 第二信号处理电路,用于将输入的EDTV电视信号处理成宽宽比的双扫描速度电视信号; 第一信号选择电路,用于从宽高比转换电路和第二信号处理电路中选择各个输出信号之一; 用于从第一信号选择电路显示所选择的输出信号的宽屏幕显示装置; EDTV信号检测电路,用于检测在第二信号处理电路中对EDTV信号进行的处理,从而将第一信号选择电路与其第二信号处理电路侧的接触从其第一信号处理电路侧切换。

    Sequential scanning converter with frame comb filter and freeze frame
feature
    7.
    发明授权
    Sequential scanning converter with frame comb filter and freeze frame feature 失效
    具有帧梳状滤波器和冻结帧特征的顺序扫描转换器

    公开(公告)号:US4853765A

    公开(公告)日:1989-08-01

    申请号:US186164

    申请日:1988-04-26

    IPC分类号: H04N9/78 H04N5/937 H04N7/01

    CPC分类号: H04N5/4448

    摘要: A video signal processing circuit capable of reproducing a still picture signal from a color video signal comprises a luminance signal/chrominance signal separation circuit of a motion adaptive type, a scanning line interpolation circuit of a motion adaptive type connected with the separation circuit, a first memory connected with the separation circuit to store therein the output of the separation circuit, a second memory connected with the interpolation circuit to store therein the output of the interpolation circuit and a switching circuit for delivering therethrough the outputs of said first and second memories as a first output signal alternately and for delivering therethrough the outputs of said second and first memories as a second output signal alternately, the alternation for the delivery by the switching circuit being effected at a frequency identical with the field frequency of the video signal.

    摘要翻译: 能够从彩色视频信号再现静止图像信号的视频信号处理电路包括运动自适应型的亮度信号/色度信号分离电路,与分离电路连接的运动自适应型的扫描线内插电路,第一 与所述分离电路连接的存储器,其中存储所述分离电路的输出;第二存储器,与所述内插电路连接以在其中存储所述内插电路的输出;以及切换电路,用于将所述第一和第二存储器的输出作为 交替地将第一和第二存储器的输出作为第二输出信号交替输出,由切换电路传送的交替以与视频信号的场频相同的频率进行。

    YC-signal separation circuit responsive to magnitude of vertical
correlation
    10.
    发明授权
    YC-signal separation circuit responsive to magnitude of vertical correlation 失效
    YC信号分离电路响应于垂直相关的幅度

    公开(公告)号:US4754322A

    公开(公告)日:1988-06-28

    申请号:US908669

    申请日:1986-09-17

    IPC分类号: H04N5/14 H04N9/78

    CPC分类号: H04N5/144 H04N9/78

    摘要: The present invention is for separating luminance signal Y and color difference signal C from the composite color television signal and includes a frame memory for storing the composite color television signal, a motion detector for detecting motion of a picture image on the basis of the signal read out from the frame memory, a correlation detector for detecting the magnitude of vertical correlation of pictures on the basis of the signal read out from the frame memory, a vertical-axis filter for performing YC-signal separation through a filtering operation in the vertical-axis direction, a time-axis filter for performing a filtering operation in the time-axis direction, a two-dimensional filter for performing YC-signal separation through a filtering operation in both the horizontal and vertical directions, and a mixer for mixing the outputs of the three filters in accordance with the magnitude of motion and the magnitude of vertical correlation.

    摘要翻译: 本发明用于从复合彩色电视信号中分离亮度信号Y和色差信号C,并且包括用于存储复合彩色电视信号的帧存储器,用于基于读取信号检测图像的运动的运动检测器 从帧存储器出来的相关检测器,用于基于从帧存储器读出的信号来检测图像的垂直相关幅度的相关检测器,用于通过垂直方向上的滤波操作执行YC信号分离的垂直轴滤波器, 用于在时间轴方向上执行滤波操作的时间轴滤波器,用于通过水平和垂直方向上的滤波操作来执行YC信号分离的二维滤波器和用于混合输出的混频器 的三个滤波器根据运动的幅度和垂直相关的幅度。