Video signal compression apparatus for horizontal compression of a video
signal
    1.
    发明授权
    Video signal compression apparatus for horizontal compression of a video signal 失效
    用于视频信号的水平压缩的视频信号压缩装置

    公开(公告)号:US5703653A

    公开(公告)日:1997-12-30

    申请号:US725074

    申请日:1996-10-02

    IPC分类号: H04N5/14 H04N5/44 H04N7/01

    摘要: A video signal compression apparatus extracts a specific value written in a read only memory at every system clock pulse. The specific value can be varied at every clock pulse. Therefore, for example, only the center part of a picture can be horizontally compressed. A FIFO memory may be used. It is possible to select a mode with a fixed compression ratio or a mode in which a compression ratio varies at every clock pulse. Further, the fixed compression ratio can be set from the outside. Display position of the picture can also be changed.

    摘要翻译: 视频信号压缩装置以每个系统时钟脉冲提取在只读存储器中写入的特定值。 每个时钟脉冲可以改变具体值。 因此,例如只能将图像的中央部分水平地压缩。 可以使用FIFO存储器。 可以选择具有固定压缩比的模式或压缩比在每个时钟脉冲下变化的模式。 此外,可以从外部设定固定压缩比。 图片的显示位置也可以更改。