发明授权
US5815558A Dial inbound meter interface unit which uses two elements for coupling
to and isolating from meter
失效
拨入入口仪表接口单元,其使用两个元件耦合并与仪表隔离
- 专利标题: Dial inbound meter interface unit which uses two elements for coupling to and isolating from meter
- 专利标题(中): 拨入入口仪表接口单元,其使用两个元件耦合并与仪表隔离
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申请号: US677621申请日: 1996-07-08
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公开(公告)号: US5815558A公开(公告)日: 1998-09-29
- 发明人: Benjamin C. Bradley , Victor Christopher Trifu
- 申请人: Benjamin C. Bradley , Victor Christopher Trifu
- 申请人地址: GA Norcross
- 专利权人: Schlumberger
- 当前专利权人: Schlumberger
- 当前专利权人地址: GA Norcross
- 主分类号: H04M11/00
- IPC分类号: H04M11/00
摘要:
The invention is a dial inbound MIU which includes only two elements, a transformer and an optoisolator, to couple timing and power signals to the meter whose data is being measured and to retrieve data from the meter.
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