Motion signal generating circuit for use in a television receiver
    1.
    发明授权
    Motion signal generating circuit for use in a television receiver 失效
    用于电视接收机的运动信号发生电路

    公开(公告)号:US4953032A

    公开(公告)日:1990-08-28

    申请号:US441569

    申请日:1989-11-27

    IPC分类号: H04N5/14

    CPC分类号: H04N5/144

    摘要: A motion information signal generating circuit comprises a motion detecting circuit for detecting a piece of motion information from a digitized television signal; a temporal-spatial signal processing circuit for expanding a signal representing the so detected motion information both in time and space and a noise eliminator circuit connected between the motion detecting circuit and the temporal-spatial signal processing circuit. The noise eliminator circuit has at least one 1H memory to detect the correlation between the motion information signals pertaining to two adjacent picture elements which are one horizontal sweep line part, and for instance, the motion information signal of a smaller data quantity is selected, thereby preventing appearance of a false motion signal which would be caused by a noise of increased amplitude.

    摘要翻译: 运动信息信号发生电路包括运动检测电路,用于从数字化的电视信号中检测运动信息; 用于在时间和空间上展开表示所检测的运动信息的信号的时空信号处理电路和连接在运动检测电路和时空信号处理电路之间的噪声消除电路。 噪声消除器电路具有至少一个1H存储器,用于检测属于一个水平扫描线部分的两个相邻像素的运动信息信号之间的相关性,例如,选择较小数据量的运动信息信号,从而 防止由振幅增大的噪声引起的假运动信号的出现。

    Video signal processing circuit capable of enlarging and displaying a
picture
    2.
    发明授权
    Video signal processing circuit capable of enlarging and displaying a picture 失效
    视频信号处理电路能够放大和显示图像

    公开(公告)号:US5029006A

    公开(公告)日:1991-07-02

    申请号:US343495

    申请日:1989-04-25

    IPC分类号: G06T3/40 H04N5/262 H04N9/74

    摘要: A video signal processing circuit capable of enlarging and displaying a picture and adapted for use in an apparatus in which a desired picture is selected, and a video signal representative of the desired picture under interlaced scanning is received, stored in a memory and processed to provide an enlarged video signal, comprises includes a real signal/interpolated signal preparation circuit for preparing, from the stored video signal, new scanning lines for an image to be enlarged, and a memory processing circuit having switching control function to store an output signal of the real signal/interpolated signal preparation circuit in a memory, read the video signal out of the memory at a period different from a period at which the output signal is stored in the memory, and delay a read-out signal by one or more fields so that an enlarged signal is delivered.

    摘要翻译: 一种视频信号处理电路,其能够放大并显示图像,并且适于在其中选择期望的图像的装置中使用,并且在隔行扫描中接收表示期望图像的视频信号,存储在存储器中并进行处理以提供 扩大的视频信号包括一个实际的信号/内插信号准备电路,用于从所存储的视频信号中准备用于待放大的图像的新的扫描线,以及具有切换控制功能的存储器处理电路,用于存储 存储器中的实时信号/内插信号准备电路,以与输出信号存储在存储器中的周期不同的周期从存储器读出视频信号,并且将读出信号延迟一个或多个字段, 放大的信号被传送。

    Video signal processing circuit capable of enlarging and displaying a
picture
    3.
    发明授权
    Video signal processing circuit capable of enlarging and displaying a picture 失效
    视频信号处理电路能够放大和显示图像

    公开(公告)号:US5181110A

    公开(公告)日:1993-01-19

    申请号:US634518

    申请日:1990-12-27

    IPC分类号: G06T3/40 H04N5/262 H04N5/44

    摘要: A video signal processing circuit capable of enlarging and displaying a picture and adapted for use in an apparatus in which a desired picture is selected, and a video signal representative of the desired picture under interlaced scanning is received, stored in a memory and processed to provide an enlarged video signal, includes a real signal/interpolated signal preparation circuit for preparing, from the stored video signal, new scanning lines for an image to be enlarged, and a memory processing circuit having switching control function to store an output signal of the real signal/interpolated signal preparation circuit in a memory, read the video signal out of the memory at a period different from a period at which the output signal is stored in the memory, and delay a read-out signal by one or more fields so that an enlarged signal is delivered.

    摘要翻译: 一种视频信号处理电路,其能够放大并显示图像,并且适于在其中选择期望的图像的装置中使用,并且在隔行扫描中接收表示期望图像的视频信号,存储在存储器中并进行处理以提供 放大的视频信号包括一个实际信号/内插信号准备电路,用于从所存储的视频信号中准备用于要放大的图像的新扫描线,以及具有切换控制功能的存储器处理电路,以存储实际的输出信号 信号/内插信号准备电路在存储器中以与输出信号存储在存储器中的周期不同的周期从存储器读出视频信号,并且通过一个或多个字段延迟读出信号,使得 传送放大的信号。

    Compatible wide aspect ratio receiver with spatial filtering for
variable zoom
    4.
    发明授权
    Compatible wide aspect ratio receiver with spatial filtering for variable zoom 失效
    兼容的宽宽比接收器,具有可变焦距的空间滤波

    公开(公告)号:US5276515A

    公开(公告)日:1994-01-04

    申请号:US942143

    申请日:1992-09-08

    摘要: A video signal processing circuit is provided to display an image of a standard television signal on a display unit with a 6:9 aspect ratio by enlarging an image of a video signal in the horizontal and vertical directions by a magnification factor which depends on the feature of the standard television signal. The processing circuit includes a first memory circuit which reads out the stored video signal in response to a read clock different from the write clock and generated by a stable frequency source so that the image of the video signal is expanded in the vertical direction, a second memory circuit which implements time-base compression for the output of the first memory circuit and thereafter expands the signal, a spatial filter which implements filtering for the output of the second memory circuit, an enlargement control circuit which control the above-mentioned circuits, and a synchronizing processing circuit. The circuit arrangement enables video signals of various image sizes, such as for movie pictures, to be displayed by signal conversion on a display unit with a 16:9 aspect ratio, and is capable of suppressing jitters of video signals.

    摘要翻译: 提供一种视频信号处理电路,通过在水平和垂直方向上放大视频信号的图像,依赖于特征的放大系数,以6:9的宽高比在显示单元上显示标准电视信号的图像 的标准电视信号。 处理电路包括:第一存储器电路,其响应于与写入时钟不同的读取时钟读出存储的视频信号,并由稳定的频率源产生,使得视频信号的图像在垂直方向上扩展,第二存储器电路 对第一存储器电路的输出进行时基压缩,然后扩展信号的存储电路,对第二存储电路的输出实现滤波的空间滤波器,控制上述电路的放大控制电路,以及 一个同步处理电路。 该电路装置能够通过在具有16:9宽高比的显示单元上进行信号转换来显示诸如电影图像的各种图像尺寸的视频信号,并且能够抑制视频信号的抖动。

    Sequential scanning converter with frame comb filter and freeze frame
feature
    5.
    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。

    Video signal processing circuit of motion adaptive type
    9.
    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。

    Movement detection circuit of a video signal used in a television
receiver
    10.
    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。