公开(公告)号：US5940144A

公开(公告)日：1999-08-17

申请号：US870616

申请日：1997-06-06

Applicant: Kuno Lenz ,  Sigrid Hauser

Inventor： Kuno Lenz ,  Sigrid Hauser

IPC: H04N5/57 ,  H04N9/68

CPC classification number: H04N5/57 ,  H04N9/68

Abstract: A device for regulating the luminance signal and chromanance signals of a video image to be converted into red, green and blue color signals. The device includes a conversion matrix and a device for regulating an amplitude of the luminance signal, the blue color difference chromanance signal and a red color difference chromanance signal to be modified by a user adjustment control. The device further includes a device for preventing the color signal having the highest value at the output of the conversion matrix from being able to exceed a saturation value substantially equal to a percentage, preferably 70%, of the white level of the image signal when the color signal reaches the saturation value.

Abstract translation: 一种用于调节要转换为红色，绿色和蓝色信号的视频图像的亮度信号和色度信号的装置。 该装置包括转换矩阵和用于调节亮度信号的幅度的装置，蓝色差异色度信号和用于通过用户调整控制修改的红色色差色度信号。 该装置还包括用于防止在转换矩阵的输出处具有最高值的彩色信号能够超过基本上等于图像信号的白电平的百分比，优选70％的饱和度的装置， 彩色信号达到饱和值。