发明名称 |
Switch |
摘要 |
A switch (10) comprises a face plate (16) and a single switch sensing oscillator (18) responsive to a switch activating presence. The oscillator (18) has a resistive component (36) connected to a sensing plate (38) which acts as a first capacitor plate. The face plate (16) is arranged to prevent electrical contact between the user and the oscillator (18). Any object, when placed adjacent the face plate (16), acts as a second capacitor plate which alters the frequency of the oscillator (18). A microprocessor (20) senses the change in frequency and activates the switch (10) in response to the change. In another aspect a mains light switch (10) includes a smoke detector (62). In a further aspect the switch includes a means electricity cable signal transmitter/receiver and a microprocessor whereby each such switch may communicate directly with another such switch.
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申请公布号 |
US2003222508(A1) |
申请公布日期 |
2003.12.04 |
申请号 |
US20030460944 |
申请日期 |
2003.06.13 |
申请人 |
MAXWELL LEONARD;MCINTYRE LLOYD;WARREN ROY;ROE STEPHEN;BROOKA JIM;KENDALL HELEN |
发明人 |
MAXWELL LEONARD;MCINTYRE LLOYD;WARREN ROY;ROE STEPHEN;BROOKA JIM;KENDALL HELEN |
分类号 |
H03K17/955;H03K17/96;H05B39/08;(IPC1-7):H02H1/00 |
主分类号 |
H03K17/955 |
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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