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.
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
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