发明名称 |
CLAVIER MAGNETIQUE D'INTRODUCTION DE DONNEES NUMERIQUES |
摘要 |
Magnetic keyboard transforms the depression of a key to electric signals corresponding to a numerical code, comprising circuits having superimposed coils, magnetically decoupled by a conductive disc placed in the immediate vicinity of the primary circuit. The depression of a key moves the conductive disc away and couples the secondary coil to the primary coil. |
申请公布号 |
BE775788(A1) |
申请公布日期 |
1972.05.25 |
申请号 |
BE19710775788 |
申请日期 |
1971.11.25 |
申请人 |
COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS;CIT-ALCATEL |
发明人 |
LA SOCIETE ALSACIENNE DE CONSTRUCTIONS ATOMIQUES;DE TELECOMMUNICATIONS;D'ELECTRONIQUE (ALCATEL). |
分类号 |
G06C7/02;G11C17/02;H03K17/972;H04L17/04;(IPC1-7):06F/ |
主分类号 |
G06C7/02 |
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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