Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1987-03-23
1988-09-13
Zazworsky, John
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307358, 328150, H03K 5153, H03K 524
Patent
active
047711884
ABSTRACT:
A method and apparatus for instantaneously adjusting the threshold level for amplitude qualification in a signal peak detection system. Two threshold levels are provided, an upper threshold level and a lower threshold level. As the input signal level exceeds a first qualifying value, the amplitude threshold is set to the lower threshold level. If the input signal continues to increase and exceeds a second qualifying value higher than the first qualifying value, the amplitude threshold is set to the upper threshold level.
REFERENCES:
patent: 3375450 (1968-03-01), Ayres et al.
patent: 4479266 (1984-10-01), Eumurian et al.
patent: 4574206 (1986-03-01), Todokoro et al.
Cheng Jyi-Min
Van Wyngaarden Julian H.
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