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    • 2. 发明授权
    • Ghost canceler for television and video tape recorder
    • 电视和录像机Ghost消除器
    • US5055929A
    • 1991-10-08
    • US458360
    • 1989-12-28
    • Toshihisa Sakai
    • Toshihisa Sakai
    • H04N5/21H04N5/765
    • H04N5/765H04N5/211
    • A ghost canceler having first and second terminal groups. The first terminal group is coupled to a television receiver and the second terminal group is available for coupling to a video tape recorder (VTR). The first terminal group includes terminals for receiving an original video signal from the television to be ghost canceled, commands for causing ghost canceling processing to be carried out, information regarding television channel changes and sound signals from the television receiver. The first terminal group also includes an output terminal for transmitting to the television receiver the original video signal as it is within a period in which the input terminal group does not receive the commands for performing the ghost canceling processing, or a predetermined period immediately after the input terminal group receives information about the switch of the channels, the output terminal transmitting to the television receiver a video signal ghost canceled with respect to the original video signal at other times. The second terminal group including a video output terminal for outputting the ghost canceled video signal or the original video signal received from the television receiver to the VTR and sound terminals for outputting a sound signal received from the television receiver as is to the VTR.
    • 具有第一和第二终端组的重影消除器。 第一终端组耦合到电视接收机,并且第二终端组可用于耦合到录像机(VTR)。 第一终端组包括用于从电视接收被重影取消的原始视频信号的终端,用于进行重影消除处理的命令,关于电视频道改变的信息和来自电视接收机的声音信号。 第一终端组还包括输出终端,用于在输入终端组未接收到用于执行重影消除处理的命令的时段内或原始视频信号之后的预定时段内将原始视频信号原样传送到电视接收机 输入端子组接收关于通道开关的信息,输出端在其它时间向电视接收机发送相对于原始视频信号取消的视频信号重影。 第二终端组包括用于将从电视接收机接收的重影取消视频信号或原始视频信号输出到VTR的视频输出端子,以及用于输出从电视接收机接收的声音信号到VTR的声音终端。