公开(公告)号：US5151793A

公开(公告)日：1992-09-29

申请号：US574873

申请日：1990-08-30

申请人： Hiroshi Ito ,  Seigo Ando ,  Bonpei Inaba

发明人： Hiroshi Ito ,  Seigo Ando ,  Bonpei Inaba

IPC分类号： H04N5/272 ,  H04N9/75

CPC分类号： H04N9/75

摘要： Karaoke is provided more easily and flexibly by recording video signals from multiple video sources on a disk; selecting one of those sources as desired; and reproducing the signals from that source along with either the output of a video camera or graphics data. The graphics data is recorded on the disk with the video source signals in multiplexed fashion, along with selection signals. When the multiplexed signals are demultiplexed, chroma-key composite circuitry effects desired superimposition of a video camera output on the source video signals.

摘要翻译： 通过将来自多个视频源的视频信号记录在磁盘上，更容易和灵活地提供卡拉OK; 根据需要选择其中一个来源; 以及再现来自该源的信号以及摄像机的输出或图形数据。 图形数据与选择信号一起以多路复用方式与视频源信号一起记录在磁盘上。 当多路复用信号被解复用时，色键复合电路实现视频摄像机输出对源视频信号的期望的叠加。