发明名称 |
AUTOMATIC TESTING CIRCUIT OF LAMP |
摘要 |
<p>A circuit for automatically testing lamps in a digital watch at battery change comprises an AND gate connected between the one end of a NOR gate and the outputs of a function selecting switch (1) and a numeral changing switch (2), a SF flip-flop circuit connected to the other end of the NOR gate, and an inverter for inverting the output of the NOR gate.</p> |
申请公布号 |
KR900007223(B1) |
申请公布日期 |
1990.10.05 |
申请号 |
KR19870009188 |
申请日期 |
1987.08.21 |
申请人 |
SAM SUNG ELECTRONICS CO.,LTD. |
发明人 |
LEE MYUNG-DON |
分类号 |
G04G99/00;(IPC1-7):G04G1/00 |
主分类号 |
G04G99/00 |
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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