首页> 外国专利> VIDEO RECORDING

VIDEO RECORDING

机译:视频录制

摘要

A circuit for recording video signals includes: a luminance signal processor for separating a luminance signal from a video signal and frequency modulating the separated luminance signal; a chrominance signal processor, including a color detector, for separating a chrominance signal from a video signal, and amplitude modulating the chrominance signal so as to be distributed in a low frequency band when the chrominance signal is detected by the color detector; a mixer for mixing an output of said luminance signal processor and an output of the luminance signal processor; a recording device for recording an output of the mixer on a record medium; and a frequency characteristic controller for controlling a frequency band of an output of the luminance signal processor corresponding to whether the video signal is a black-and-white signal or a chrominance signal, the frequency characteristic controller being connected between the mixer 40 and the luminance signal processor. Thus, for a color video signal, a color balance is maintained, and for a black-and-white video signal, the frequency characteristic of a video signal is controlled to provide contour resolution.
机译:一种用于记录视频信号的电路,包括:亮度信号处理器,用于从视频信号中分离出亮度信号,并对分离出的亮度信号进行频率调制;以及色度信号处理器,其包括颜色检测器,用于从视频信号中分离出色度信号,并且对色度信号进行幅度调制,以在由色检测器检测到色度信号时将其分布在低频带中;混合器,用于混合所述亮度信号处理器的输出和亮度信号处理器的输出;记录装置,用于将混合器的输出记录在记录介质上;频率特性控制器连接在混频器40和亮度之间,该频率特性控制器用于控制亮度信号处理器的输出的频带,该亮度信号处理器对应于视频信号是黑白信号还是色度信号。信号处理器。因此,对于彩色视频信号,保持色彩平衡,对于黑白视频信号,控制视频信号的频率特性以提供轮廓分辨率。

著录项

  • 公开/公告号GB9028236D0

    专利类型

  • 公开/公告日1991-02-13

    原文格式PDF

  • 申请/专利权人 SAMSUNG ELECTRONICS CO. LTD;

    申请/专利号GB19900028236

  • 发明设计人

    申请日1990-12-31

  • 分类号H04N9/83;

  • 国家 GB

  • 入库时间 2022-08-22 05:47:45

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号