| 发明名称 |
Combined piezoelectric silent alarm/battery charger |
| 摘要 |
A communication device such as a pager or cellular telephone which requires battery power, uses a piezoelectric device as both a vibrating silent alarm and a battery charger.
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| 申请公布号 |
US6252336(B1) |
申请公布日期 |
2001.06.26 |
| 申请号 |
US19990435878 |
申请日期 |
1999.11.08 |
| 申请人 |
CTS CORPORATION |
发明人 |
HALL DALE G. |
| 分类号 |
G08B3/10;H01L41/113;H02J7/00;H02N2/02;H02N2/18;H04M1/725;(IPC1-7):H01L41/113 |
主分类号 |
G08B3/10 |
| 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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