发明名称 |
Apparat ti ind- og/eller afspilning af information på en drejende pladeformet registreringsbærer. |
摘要 |
A device for writing information in a disk-shaped record carrier, and/or for reproducing the recorded information, the transducer being radially movable relative to the record carrier, which transducer is disposed on a tubular member, which at its one end is provided with a drive coil and at its other end with a tachometer coil, which coils are movable in an air gap of a stationary magnet system. |
申请公布号 |
DK137905(B) |
申请公布日期 |
1978.05.29 |
申请号 |
DK19750000726 |
申请日期 |
1975.02.25 |
申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
PETER JOHANNES MICHIEL JANSSEN;GERARD EDUARD VAN ROSMALEN |
分类号 |
G11B21/08;G11B7/085;G11B7/09;G11B7/12;H02K41/035;H02P25/02;(IPC1-7):G11B7/08;G11B21/02 |
主分类号 |
G11B21/08 |
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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