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1. 发明申请

WO1992009073A1 DEVICE FOR RECORDING DIGITAL PICTURE SIGNAL 审中-公开
标题翻译：用于记录数字图像信号的装置
公开(公告)号：WO1992009073A1
公开(公告)日：1992-05-29
申请号：PCT/JP1991000755
申请日：1991-06-05
申请人： SONY CORPORATION , KANOTA, Keiji , INOUE, Hajime , UETAKE, Akihiro , KAWAGUCHI, Moriyuki , KUBOTA, Yukio , CHIBA, Kazunobu
发明人： SONY CORPORATION
IPC分类号： G11B05/09
CPC分类号： H04N9/8047 , G11B5/0086 , G11B5/09
摘要： A device for recording digital picture signals has a circuit for converting the input digital picture signals into blocks of data comprising a plurality of picture element data, an encoding circuit which encodes the output of the converting circuit in compressed data for every block, and a channel-encoding circuit which channel-encodes the encoded data outputted from the encoding circuit. The data outputted from the channel-encoding circuit is recorded on a magnetic tape by magnetic heads installed on a rotating drum. In the device, the pitch of the tracks formed on the magnetic tape by the magnetic heads is 5.5 mu m or less, the diameter of the rotating drum is 25 mm or less, and the track length per unit time is made to be a predetermined one by setting the rotating speed of the rotating drum at 150 rps or more. Thereby, long recording time is possible by a mechanism part of a small size and further, the error relative to the linearity of the track can be reduced.
摘要翻译：用于记录数字图像信号的装置具有用于将输入的数字图像信号转换为包括多个图像元素数据的数据块的电路，对每个块的压缩数据对转换电路的输出进行编码的编码电路和通道编码电路，对编码电路输出的编码数据进行通道编码。从通道编码电路输出的数据通过安装在转鼓上的磁头记录在磁带上。在该装置中，通过磁头形成在磁带上的轨道的间距为5.5μm或更小，旋转滚筒的直径为25mm或更小，并且将每单位时间的轨迹长度设定为预定的一个通过将旋转鼓的旋转速度设置在150rps或更大。因此，通过小尺寸的机构部分可以实现长记录时间，并且可以减少相对于轨道的线性的误差。

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