Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-12-09
1993-06-15
Callahan, Timothy P.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307234, 307354, 328162, 328167, 328111, H03K 500, H03B 100
Patent
active
052202208
ABSTRACT:
The noise suppression system has a discriminator, an amplitude circuit and a filtering circuit. The discriminator has an input sensor, a timer and a decision unit. The input sensor senses when the incoming signal is over a given amplitude threshold and starts the timer running. The decision unit determines when the time is over a given time threshold and the discriminator informs the amplitude circuit. The amplitude circuit has an amplitude sensor and a control unit. The amplitude sensor senses the amplitude of the incoming signal when the discriminator has a signal over the given time threshold and the amplitude sensor relays the amplitude to the control unit. The control unit outputs a control signal. The control unit has two amplitude thresholds, the control signal being at a constant minimum below the first threshold, proportional to the amplitude sensor amplitude between the thresholds, and at a constant maximum above the second threshold. The control signal is sent to the filtering circuit which has a filter and an intensity equalizer. The filter is a high pass filter whose cut-off frequency is controlled by the control signal and the intensity equalizer boosts the filtered signal according to the amplitude of the control signal.
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House Ronald R.
Tse Lawrence T.
Callahan Timothy P.
Gennum Corporation
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