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    • 76. 发明授权
    • Apparatus and method to convert a non-interlaced computer graphics
signal to an interlaced video signal
    • 将非隔行计算机图形信号转换为隔行扫描视频信号的装置和方法
    • US6100934A
    • 2000-08-08
    • US2579
    • 1998-01-05
    • Hsiung-Hao LiuRong-Chuan Tsai
    • Hsiung-Hao LiuRong-Chuan Tsai
    • H04N11/20H04N7/01H04N9/64
    • H04N9/641
    • An apparatus is disclosed to convert a non-interlaced computer graphics signal which consists of contiguous scan lines into an interlaced video signal which alternately consists of even fields and odd fields. The converting apparatus includes a receiving means, a low-pass filter and a line buffer. The receiving means sequentially receives a scan line. The line buffer stores the brightness signals of the first and the second scan lines before the received scan line. And the low-pass filter receives the sequential contiguous scan lines from the line buffer and the displaying scan line, weights the brightness signals of these scan lines and outputs the scan lines with the weighted brightness signal and a halved refresh rate to serve as the even field and the odd field of the interlace video signal.
    • 公开了一种将由连续的扫描线组成的非隔行计算机图形信号转换为交替由偶数场和奇数场组成的隔行视频信号的装置。 转换装置包括接收装置,低通滤波器和行缓冲器。 接收装置依次接收扫描线。 行缓冲器存储在接收到的扫描线之前的第一和第二扫描线的亮度信号。 并且低通滤波器从行缓冲器和显示扫描线接收连续的连续扫描线,对这些扫描线的亮度信号进行加权,并且将加权亮度信号和一半的刷新率输出到扫描线,以用作均匀的 场和隔行视频信号的奇数场。