发明授权
- 专利标题： Digital video signal recording/reproducing apparatus
- 专利标题（中）： 数字视频信号记录/再现装置
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申请号： US690253申请日： 1991-04-23
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公开(公告)号： US5278706A公开(公告)日： 1994-01-11
- 发明人: Akira Iketani , Chojuro Yamamitsu , Akifumi Ide , Masakazu Nishino , Tatsuro Juri , Hideki Ohtaka , Chiyoko Matsumi
- 申请人： Akira Iketani , Chojuro Yamamitsu , Akifumi Ide , Masakazu Nishino , Tatsuro Juri , Hideki Ohtaka , Chiyoko Matsumi
- 申请人地址： JPX Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX2-113308 19900427
- 主分类号： H04N5/7826
- IPC分类号： H04N5/7826 ; G11B5/53 ; G11B15/473 ; H04N9/804 ; H04N9/808 ; G11B21/02
摘要：
In a digital video signal recording/reproducing apparatus for recording digital VCR video and audio signals by using a rotary cylinder, for a video signal with a frame frequency fN of 30 Hz or 29.97 Hz, the rotating frequency of the cylinder is set to 2.5 times fN. On the other hand, for a signal with a frame frequency fP of 25 Hz, the rotating frequency of the cylinder is set to 3.0 times fP. As a result, as long as the cylinder diameters are identical, the relative speed of the tape and the head is the same for video signals of either frame frequency fN or fP.
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