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    • 5. 发明授权
    • Two-level picture signal transmission system
    • 二级图像信号传输系统
    • US3973079A
    • 1976-08-03
    • US531173
    • 1974-12-09
    • Takahiko FukinukiYoshizumi Eto
    • Takahiko FukinukiYoshizumi Eto
    • H04N1/413H04N1/415H04L27/20
    • H04N1/415H04N1/4135
    • In a transmission system in which two-level picture signal is divided into blocks, each having a predetermined number of picture elements, the pieces of signal contained in the respective blocks are converted to a predetermined number of codes, and the codes are converted to modulated signals having different levels or phase, the modulator circuit is so designed that any two modulated signals causing the shifting of the contour of picture may be converted to two signals having adjacent levels or phases, so as to minimize the degradation of the quality of the reproduced picture due to code errors caused during transmission.
    • 在其中将两电平图像信号划分成块的传输系统中,每个具有预定数量的像素,将包含在各个块中的信号转换成预定数量的码,并将码转换成调制 具有不同电平或相位的信号,调制器电路被设计成使得导致图像轮廓移位的任何两个调制信号可以被转换成具有相邻电平或相位的两个信号,以便最小化再现的质量的劣化 由于传输过程中导致的代码错误导致的图像。
    • 7. 发明授权
    • Method for producing NTSC compatible signal for widescreen tv system
    • 用于宽屏电视系统生产NTSC兼容信号的方法
    • US4945402A
    • 1990-07-31
    • US266840
    • 1988-11-03
    • Takahiko Fukinuki
    • Takahiko Fukinuki
    • H04N11/00H04N7/08H04N7/081H04N9/00H04N11/24
    • H04N7/08H04N11/006H04N7/081
    • A method for producing an NTSC compatible television signal for a widescreen television system having a widescreen panel includes deriving a luminance signal of a central portion of the widescreen panel, deriving a color signal modulated in response to the luminance signal according to the NTSC system, deriving a time-expanded signal from luminance signals of two sides of the widescreen panel modulating a sub-carrier so that a scanning line of identical phase drops down for each field, and deriving a time-expanded color signal from color signal of the two sides of the widescreen panel modulating the sub-carrier and having a phase which is the same in every scanning line in a field and which is inverse with response to the phase for the adjacent fields and having a horizontal frequency of the time-expanded luminance signal. The luminance signal, color signal, time-expanded luminance signal and time-expanded color signal are multiplexed so as to enable production of the NTSC compatible television signal.
    • 一种用于制造具有宽屏面板的宽屏电视系统的NTSC兼容电视信号的方法包括导出宽屏面板中心部分的亮度信号,导出根据NTSC系统响应亮度信号调制的彩色信号,导出 调制子载波的宽屏幕两侧的亮度信号的时间扩展信号,使得相同相位的扫描线对于每个场下降,并且从双方的颜色信号导出时间扩展的颜色信号 所述宽屏面板调制所述副载波并且具有在场中的每个扫描线相同的相位,并且与所述相邻场的所述相位相反并且具有所述时间扩展的亮度信号的水平频率。 亮度信号,彩色信号,时间扩展亮度信号和时间扩展颜色信号被复用,以便能够产生NTSC兼容的电视信号。