发明名称 |
TELEVISION WATCH STREET KEEPING CIRCUIT |
摘要 |
The circuit for providing synthetic voice alarm and reducing the brightness of CRT when a person comes close to the television has a concave mirror (22) enclosed in a television case as a distance sensor. When a person comes close to the television, his shadow is detected by the mirror, then the circuit operates to provide an alarm. |
申请公布号 |
KR890000841(B1) |
申请公布日期 |
1989.04.10 |
申请号 |
KR19850007025 |
申请日期 |
1985.09.25 |
申请人 |
SAMSUNG ELECTRONIC CO., LTD. |
发明人 |
KIM SUNG-MAN |
分类号 |
H04N5/44;(IPC1-7):H04N5/44 |
主分类号 |
H04N5/44 |
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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