发明名称 |
System for displaying a segment, primarily for use in a remote-controlled digital display |
摘要 |
A system for displaying a segment as applicable in particular to remote-controlled digital display. A control circuit energizes two stationary series-connected electromagnets with pulses of the same polarity so as to produce a magnetic field in each electromagnet. Under the action of the magnetic field, a single permanent magnet rigidly fixed to the segment is capable of displacement between the electromagnets in order to move the segment from a visible active position to a hidden active position.
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申请公布号 |
US4733231(A) |
申请公布日期 |
1988.03.22 |
申请号 |
US19850734558 |
申请日期 |
1985.05.16 |
申请人 |
LAFON SA |
发明人 |
LAGACHE, ROLAND |
分类号 |
G08B5/22;G09F9/37;(IPC1-7):G09G3/20 |
主分类号 |
G08B5/22 |
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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