发明名称 |
Automatic head height control apparatus |
摘要 |
In a video tape recorder which employs a rotary magnetic head secured on a deflectable device, such as a bi-morph leaf, to dynamically perform head tracking during reproduction of previously recorded tracks regardless of the tape transport speed; the height of the magnetic head is detected during recording to produce a feedback control signal which electrically adjusts the height of the magnetic head by deforming the bi-morph leaf to overcome hysteresis deflection of the bi-morph leaf so that the magnetic head is returned to and maintained at a normal height during recording.
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申请公布号 |
US4366515(A) |
申请公布日期 |
1982.12.28 |
申请号 |
US19800130168 |
申请日期 |
1980.03.13 |
申请人 |
SONY CORPORATION |
发明人 |
TAKANO, MASAYUKI;HOSOI, SADAO;MATSUSHITA, YUICHI |
分类号 |
G11B5/588;(IPC1-7):G11B21/10;G11B5/56 |
主分类号 |
G11B5/588 |
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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