发明名称 |
BARRIER MOVEMENT POSITION SENSING |
摘要 |
Methods and apparatus for sensing barrier position in a barrier movement system are disclosed. Electrical apparatus is connected to the barrier and generates a barrier position signal representative of barrier positions which may be used by a controller to detect barrier position. The electrical apparatus can be manually adjusted to reflect a first barrier position such as a closed position. Other barrier positions can be sensed by comparin g the barrier position signal to other manually adjustable position signals.</ SDOAB> |
申请公布号 |
CA2452931(A1) |
申请公布日期 |
2004.06.26 |
申请号 |
CA20032452931 |
申请日期 |
2003.12.15 |
申请人 |
THE CHAMBERLAIN GROUP, INC. |
发明人 |
GAVEL, ANDREW;CHEN, WILLIAM;PULIS, DEREK |
分类号 |
E05F15/00;E05F15/10;E05F15/16;(IPC1-7):E05F15/16;G01B7/00 |
主分类号 |
E05F15/00 |
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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