发明名称 |
DIAL IN-BOUND METER INTERFACE UNIT WHICH DERIVES ITS POWER FROM A TELEPHONE LINE |
摘要 |
The present invention is a dial in-bound MIU (100) capable of deriving its operating current from a telephone line (120). The MIU is coupled to the telephone line using conventional practices. The MIU has the capacity to initiate data transmission at a predetermined time or upon demand by the customer or the utility company. The MIU includes a microprocessor (u22) which serves as the command processing center for the MIU. The microprocessor also manages all time-dependent functions for the MIU. When the microprocessor determines that data transmission is required, the MIU dials up a central computer using a modem (150) built into the MIU circuitry.
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申请公布号 |
WO9429997(A1) |
申请公布日期 |
1994.12.22 |
申请号 |
WO1994US06290 |
申请日期 |
1994.06.03 |
申请人 |
SENSUS TECHNOLOGIES, INC. |
发明人 |
GRAY, BRUCE, E.;FLETCHER, DONALD, R. |
分类号 |
H04M19/00;H04M11/00;H04Q9/00;(IPC1-7):H04M11/00 |
主分类号 |
H04M19/00 |
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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