公开(公告)号：US4492976A

公开(公告)日：1985-01-08

申请号：US416736

申请日：1982-09-10

申请人： Marinus C. W. vanBuul ,  Johannes G. Raven ,  Wilhelmus H. C. A. van de Ven

发明人： Marinus C. W. vanBuul ,  Johannes G. Raven ,  Wilhelmus H. C. A. van de Ven

IPC分类号： H04N7/01 ,  H04N5/44 ,  H04N9/42

CPC分类号： H04N7/012

摘要： A television receiving system for converting a video signal of one line standard to a video signal of another line standard. A field delay circuit is provided which separates the video signal of the one line standard into a high frequency and low frequency portion. The low frequency portion of the signal is processed to have a delay during one field different from the delay of a subsequent field. Independent processing means for the high frequency portion of the separated signal is provided. The processed high frequency and low frequency signals are combined to provide a video signal for converting to a different line standard. By processing the high frequency and low frequency portions of the video signal differently, a savings in hardware components is realized without material degradation in performance.

摘要翻译： 一种用于将一行标准的视频信号转换为另一行标准的视频信号的电视接收系统。 提供了将一行标准的视频信号分离成高频和低频部分的场延迟电路。 信号的低频部分被处理成在与随后的场的延迟不同的一个场期间具有延迟。 提供了用于分离信号的高频部分的独立处理装置。 经处理的高频和低频信号被组合以提供用于转换成不同线路标准的视频信号。 通过不同地处理视频信号的高频部分和低频部分，实现硬件部件的节省，而不会在性能上造成材料劣化。