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    • 3. 发明授权
    • Video signal processing apparatus for performing magnification processing
    • 用于进行放大处理的视频信号处理装置
    • US5396298A
    • 1995-03-07
    • US124963
    • 1993-09-21
    • Tatsuhiro HosokawaAkira OkutaniHitomi Kaji
    • Tatsuhiro HosokawaAkira OkutaniHitomi Kaji
    • H04N5/265G09G5/00G09G5/36H04N5/262H04N5/44H04N5/45
    • H04N5/2628
    • A video signal processing apparatus includes an A/D converter for converting an analog video signal to a digital video signal. Also included is a 3-dimensional scanning line interpolating unit for outputting an original video signal and an interpolating signal which is synchronized with the original video signal and which includes interpolated scanning lines. A magnification processing unit and a switching signal generating unit are also provided. The switching signal generating unit is for generating a switching signal corresponding to a vertical magnifying power. Further, a switching unit is included for switching between the original video signal and the interpolated video signal according to the switching signal and for outputting the switched signal. The magnification processing unit includes a first field memory for storing the original video signal, a second field memory for storing the interpolating video signal, and a controller for programming the first and second field memories and for providing the programmed vertical magnifying power to a switching signal generating unit.
    • 视频信号处理装置包括用于将模拟视频信号转换为数字视频信号的A / D转换器。 还包括用于输出原始视频信号和与原始视频信号同步并且包括内插扫描线的内插信号的三维扫描线内插单元。 还提供了放大处理单元和切换信号生成单元。 开关信号产生单元用于产生对应于垂直放大功率的开关信号。 此外,包括用于根据切换信号在原始视频信号和内插视频信号之间切换并用于输出切换信号的切换单元。 倍率处理单元包括用于存储原始视频信号的第一场存储器,用于存储内插视频信号的第二场存储器,以及用于对第一和第二场存储器进行编程并将编程的垂直放大功率提供给切换信号的控制器 发电机组。