发明名称 |
Flexible printed circuit and electric apparatus and optical disc drive having flexible printed circuit |
摘要 |
An electronic device including a mechanism for changing the relative positions of two circuit boards such as in an optical disc drive is provided. A flexible printed circuit electrically connected between the two circuit boards changes shape to suppress fluctuations in the transmission characteristics occurring due to contact with metal such as a case, and provides stable signal transmission. The flexible printed circuit includes at least one or more differential lines, a fixed unit affixed to a case at least at one location, and a movable unit that changes shape according to the relative positions of two cases. The lines adjacent to the differential line are a grounded surface, and the flexible printed circuit is formed to narrow the distance between the movable unit lines more than the distance between the fixed unit lines.
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申请公布号 |
US8448196(B2) |
申请公布日期 |
2013.05.21 |
申请号 |
US20100947319 |
申请日期 |
2010.11.16 |
申请人 |
KITAYAMA AKIRA;IHARA KOUICHI;TAKAHASHI KENJI;IDO TATEMI;HITACHI CONSUMER ELECTRONICS CO., LTD.;HITACHI-LG DATA STORAGE, INC. |
发明人 |
KITAYAMA AKIRA;IHARA KOUICHI;TAKAHASHI KENJI;IDO TATEMI |
分类号 |
G11B33/12 |
主分类号 |
G11B33/12 |
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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