公开(公告)号：US4063280A

公开(公告)日：1977-12-13

申请号：US726783

申请日：1976-09-27

申请人： Hajime Hattori ,  Tadashi Okada ,  Eiji Kezuka

发明人： Hajime Hattori ,  Tadashi Okada ,  Eiji Kezuka

IPC分类号： H04N9/74 ,  H04N9/64 ,  H04N9/535

CPC分类号： H04N5/45 ,  H04N9/641

摘要： Chroma-signal processing system is disclosed wherein a color television signal is sampled at a frequency equal to a sub-carrier frequency multiplied by an integer, and chroma-components of the sampled signals are sequentially stored in a plurality of storage means for each of the sample points, and the chroma-signals are retrieved from the storage means while omitting portions of the chroma signals whereby accomplishing the chroma-signal processing with a fewer number of storage means. The system can be used to reduce the size of a displayed color image without introducing phase discontinuities into the chrominance subcarrier. The reduced image may then be inset into another color image displayed on a CRT. The system may also be used to reduce the subcarrier frequency of a chrominance signal.

摘要翻译： 公开了一种色度信号处理系统，其中以等于乘以整数的副载波频率的频率对彩色电视信号进行采样，并且采样信号的色度分量被顺序地存储在多个存储装置中 采样点，并且从存储装置中检索色度信号，同时省略色度信号的部分，从而以更少数量的存储装置完成色度信号处理。 该系统可以用于减少显示的彩色图像的尺寸，而不会将相位不连续性引入色度副载波。 缩小的图像然后可以插入显示在CRT上的另一个彩色图像。 该系统也可以用于降低色度信号的副载波频率。