Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1989-03-15
1990-05-15
Zazworsky, John
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307245, 307277, 307306, 357 5, 505861, 505863, 505865, H03K 1792, H03K 19195, H03K 338
Patent
active
049260677
ABSTRACT:
An Integrated Superconductor Sampling Oscilloscope may include a sampling gate utilizing superconductor devices such as a Josephson junction device as well as external circuitry for producing a visual representation of an input signal responsive to the output of the sampling gate. The oscilloscope may further comprise an attenuator for receiving the input signal, a trigger recognizer comprising superconductor devices which produces a pulse signal when the input signal from the attenuator exceeds a threshold level, a hold-off gate which produces an output signal when the pulse signal from the trigger recognizer is produced concurrently with a gating event, and electrical variable delay which may comprise superconducting devices and produces a delayed pulse signal in response to an output signal by the hold-off gate and a strobe pulse generator which produces a signal to the sampling gate in response to the pulse signal from the electrical variable delay output. The result is an oscilloscope achieving a low jitter trigger from the input signal itself so as to allow viewing of the leading pulse of an input signal.
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IBM Journal of Research and Developement vol. 24, No. 2/Mar. 1980, pp. 107-264.
Hypres, Inc.
Zazworsky John
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