发明名称 |
Method and apparatus for activating switches in response to different acoustic signals |
摘要 |
An acoustic switch device that independently operates two or more electrical appliances. The acoustic switch operates a first electrical appliance upon receipt of a first series of acoustic signals and operates a second electrical appliance upon receipt of a second series of acoustic signals that is different from the first series of acoustic signals.
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申请公布号 |
US5493618(A) |
申请公布日期 |
1996.02.20 |
申请号 |
US19930058727 |
申请日期 |
1993.05.07 |
申请人 |
JOSEPH ENTERPRISES |
发明人 |
STEVENS, CARLILE R.;REAMER, DALE E. |
分类号 |
G08C23/02;(IPC1-7):H04B1/00 |
主分类号 |
G08C23/02 |
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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