发明授权
- 专利标题： Magnetic recording and/or reproducing apparatus
- 专利标题（中）： 磁记录和/或再现装置
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申请号： US421401申请日： 1982-09-22
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公开(公告)号： US4491880A公开(公告)日： 1985-01-01
- 发明人: Noboru Kojima , Yoshizumi Watatani , Takao Arai , Takashi Hoshino , Toshifumi Shibuya
- 申请人： Noboru Kojima , Yoshizumi Watatani , Takao Arai , Takashi Hoshino , Toshifumi Shibuya
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX56-149397 19810924
- 主分类号： H04N5/91
- IPC分类号： H04N5/91 ; G11B5/02 ; G11B5/035 ; G11B20/12 ; H04N5/928 ; H04N5/782
摘要：
In a magnetic recording and reproducing apparatus of 2-head helical scan type, an overlapping portion is formed at one end of each video track on a magnetic tape, and a PCM audio signal is recorded on this overlapping portion. Video/audio selective switching circuits are disposed on the input or output side of video and audio recording amplifiers, and video/audio selective switching circuits and video/audio playback equalizer circuits are disposed on the output side of video and audio playback amplifiers. Each of the heads acts as both of a video head and an audio head.
公开/授权文献
- US5799688A Automatic flow control valve 公开/授权日：1998-09-01
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