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1. 发明授权

US3883685A Picture signal conversion system 失效
标题翻译：图像信号转换系统
公开(公告)号：US3883685A
公开(公告)日：1975-05-13
申请号：US37995073
申请日：1973-07-17
申请人： HITACHI LTD
发明人： YUMDE YASUFUMI , FURUHATA TAKASHI
IPC分类号： H04B1/66 , G11B20/08 , H04N5/917 , H04N7/00 , H04N7/08 , H04N7/081 , H04N7/12 , H04N19/00
CPC分类号： H04N7/12 , H04N5/917 , H04N7/002
摘要： A system for converting an analog picture signal of a wide band into a pulse train signal of a narrow band composed of means for sampling and storing a picture signal of at least one frame, means for reading the stored signal at each sample value at an arbitrary rate, and means for producing a train of pulses with pulse intervals proportional to the read out sample values can reduce the average transmission time because the entire time of the pulse train signal representing one frame of picture varies depending on the contents of the picture. A system for converting a pulse train signal of a narrow band into an analog picture signal of a wide band composed of means for producing a signal of sample amplitudes proportional to the pulse intervals of a supplied pulse train signal, and storing means in which the signal of sample amplitudes is written at each pulse of the pulse train signal and from which the picture signal is read out at the rate equal to the period of sampling the picture signal after the end of the writing of a signal of one picture in the storing mean.
摘要翻译：一种用于将宽带的模拟图像信号转换为由用于采样和存储至少一帧的图像信号的装置组成的窄带的脉冲串信号的装置，用于以任意的每个样本值读取所存储的信号的装置速率和用于产生具有与读取的采样值成比例的脉冲间隔的脉冲序列的装置可以减少平均传输时间，因为表示一帧图像的脉冲串信号的整个时间根据图像的内容而变化。一种用于将窄带的脉冲串信号转换成宽带的模拟图像信号的系统，所述宽带的模拟图像信号包括用于产生与所提供的脉冲序列信号的脉冲间隔成比例的采样幅度的信号的装置，以及存储装置，在脉冲串信号的每个脉冲上写入采样幅度，并且以等于在存储平均值中的一个图像的信号的写入结束之后的图像信号的采样周期的速率读出图像信号。

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