发明名称 |
Rotary magnetic head apparatus with circuitry for driving head and circuitry for transmitting output signals in noncontact fashion disposed on rotary drums |
摘要 |
A rotary magnetic head apparatus is provided which is capable of reliably supplying DC power for driving to an active-type reproducing head provided within a rotary drum and which is capable of taking the reproductive output signal of the active-type head to the outside of the drum. The rotary magnetic head apparatus includes a fixed drum, a rotary drum which is rotatable with respect to the fixed drum, an active-type reproducing head, disposed on the rotary drum, for reproducing information from a magnetic tape, a constant-current circuit, disposed on the rotary drum, for supplying a constant current for driving the head to the active-type reproducing head, a noncontact signal transmission device for taking the reproductive output signal which is output when the active-type reproducing head reproduces information from the magnetic tape to the outside of the rotary drum, and a sliding-type contact device for supplying external DC power to the constant-current circuit.
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申请公布号 |
US5737154(A) |
申请公布日期 |
1998.04.07 |
申请号 |
US19960666652 |
申请日期 |
1996.06.18 |
申请人 |
SONY CORPORATION |
发明人 |
KUMAGAI, SEIJI;HAYAKAWA, MASATOSHI;MORITA, HIROSHI;FUJISAWA, NORIKATSU;HONDA, JUNICHI;NAKANO, YUJI |
分类号 |
G11B5/00;G11B5/008;G11B5/02;G11B5/39;G11B5/53;G11B15/12;G11B33/12;(IPC1-7):G11B5/52 |
主分类号 |
G11B5/00 |
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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