发明名称 |
Electronic micro-controller conversion module for step by step switching apparatus |
摘要 |
An improved step-by-step switch assembly includes an electronic controller conversion module. A programmed microprocessor responds to incoming pulse trains of widely variant make and break ratios and generates precisely timed and shaped pulses to operate vertical, rotary and release magnets of the switch assembly. Other features include increased loop sensitivity, selective digit absorption and automatic periodic contact wiping to clean all of the contacts of the assembly.
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申请公布号 |
US4633042(A) |
申请公布日期 |
1986.12.30 |
申请号 |
US19840634696 |
申请日期 |
1984.07.26 |
申请人 |
ELECTROTEL, INC. |
发明人 |
FIELDS, GARY C.;STAMOS, MARK E. |
分类号 |
H04Q3/00;(IPC1-7):H04Q3/02 |
主分类号 |
H04Q3/00 |
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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