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    • 6. 发明授权
    • Video signal reproduction apparatus replacing drop-cut signal portions
    • 视频信号再生装置代替下降信号部分
    • US5589946A
    • 1996-12-31
    • US890181
    • 1992-05-29
    • Makoto ShimokoriyamaAkio AokiMasato Kato
    • Makoto ShimokoriyamaAkio AokiMasato Kato
    • H04N5/94H04N9/882H04N5/78
    • H04N9/882
    • An apparatus for reproducing, from a recording medium, a composite signal in which an image signal and a non-image signal are multiplexed on a time axis. The apparatus includes (a) a reproduction device for reproducing the composite signal from the recording medium; (b) a detection device, coupled to the reproduction device, for detecting a drop-out portion of the composite signal reproduced by the reproduction device; (c) a discrimination device, coupled to the reproduction device, for generating a discrimination signal to discriminate between an image signal portion and non-image signal portions of the composite signal reproduced by the reproduction device; and (d) a replacing device, coupled to the detection device and to the discrimination device, for replacing the drop-out portion of the composite signal with a corresponding replacement signal, reproduced a predetermined period of time before the composite signal, in response to (i) a detection of a drop-out portion by the detection device and, (ii) the discrimination signal generated by the discrimination device.
    • 一种用于从记录介质再现在时间轴上复用图像信号和非图像信号的复合信号的装置。 该装置包括:(a)再现装置,用于从记录介质再现复合信号; (b)耦合到所述再现装置的用于检测由所述再现装置再现的复合信号的掉落部分的检测装置; (c)耦合到再现装置的识别装置,用于产生识别信号以区分由再现装置再现的复合信号的图像信号部分和非图像信号部分; 以及(d)替换装置,其耦合到所述检测装置和所述鉴别装置,以用对应的替换信号替换所述复合信号的掉落部分,所述替换信号在复合信号之前的预定时间段内响应于 (i)由检测装置检测出落下部分,以及(ii)鉴别装置产生的识别信号。