发明名称 |
Index pulse generator capable of producing an index pulse of stabilized nature for use in optical information recording and reproduction systems |
摘要 |
An index pulse generator detects an index mark applied to a record medium. A signal detected in this manner is passed through a low pass filter to provide a reference signal, and the detected signal is compared against the reference signal to deliver an index pulse.
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申请公布号 |
US4674072(A) |
申请公布日期 |
1987.06.16 |
申请号 |
US19850776676 |
申请日期 |
1985.09.16 |
申请人 |
OLYMPUS OPTICAL CO., LTD. |
发明人 |
SAKAI, MITSUGU |
分类号 |
G11B27/10;G11B7/00;G11B7/005;G11B27/24;(IPC1-7):G11B27/24 |
主分类号 |
G11B27/10 |
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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