发明名称 |
Apparatus of digitally recording and reproducing video signals |
摘要 |
In an apparatus of digitally recording and reproducing video signals, when video signal data in one image frame is divided into a multiple-number of parts (N-parts) by dividing the image frame into N-divided rectangular regions and the N-parts of data are recorded on respective N tracks, each rectangular region is divided into blocks each having a multiple number of pixels and the thus generated blocks is subjected to a bit reduction coding operation. In recording the blocks, each of blocks are recorded onto a corresponding track in such a sequence that the blocks are scanned in a reciprocating manner along short-side directions of the rectangular region on the image frame. When the data is reproduced in a varied speed playback mode, the data are modified by every short-side row of blocks to thereby provide a high-quality playback picture at the varied speed.
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申请公布号 |
US5574566(A) |
申请公布日期 |
1996.11.12 |
申请号 |
US19950377238 |
申请日期 |
1995.01.24 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
TAKAKURA, EIICHI;SUGINO, MICHIYUKI;YAMAGUCHI, TAKAYOSHI;NAGAWO, AKIYOSHI |
分类号 |
H04N5/783;G06T9/00;H03M13/00;H04N5/7826;H04N5/92;H04N9/804;(IPC1-7):H04N5/76;H04N5/78 |
主分类号 |
H04N5/783 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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