发明授权
- 专利标题: Electronic side of line detector
- 专利标题(中): 电子线检测器
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申请号: US510082申请日: 1974-09-27
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公开(公告)号: US3939308A公开(公告)日: 1976-02-17
- 发明人: David M. Shaver , John A. Gauthier
- 申请人: David M. Shaver , John A. Gauthier
- 申请人地址: CA Brockville
- 专利权人: GTE Automatic Electric (Canada) Limited
- 当前专利权人: GTE Automatic Electric (Canada) Limited
- 当前专利权人地址: CA Brockville
- 主分类号: H04Q5/24
- IPC分类号: H04Q5/24 ; H04M15/36
摘要:
A side of line detector with a single operational amplifier with adjustable output. The amplifier input is protected from positive and negative voltage spikes by diodes. Two transistors are coupled to the amplifier to set a comparator voltage reference which allows the rejection of leakage and noise. Test points are provided in the circuit to facilitate testing particular subcircuits and to allow the initial adjustment of the detector.
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