Method and means for pulse detection

Details Method and means for pulse detection Method and means for pulse detection

1977-05-31

1979-01-16

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307232, 307234, 307360, 328114, 328132, 328165, H03K 5153

Patent

active

041351614

ABSTRACT:
An improved method and means for pulse detection comprising a pair of comparators with different predetermined reference signals to one of which the input pulse is applied and to the other of which the derivative of the input pulse is applied.A zero-crossing detector is fed a second derivative of the pulse and provides an output to a NAND gate when said derivative crosses zero. Each comparator provides an output to said NAND fate when its input signal exceeds its reference signal. The NAND gate is connected to one input of a flip-flop and one input of a monostable multivibrator. The other input of the flip-flop is connected to receive the output of the input signal comparator. One output of the flip-flop is connected to an inverter pair which in turn is connected to a second monostable multivibrator; the other output of said flip-flop is connected to the first multivibrator which in turn is connected to the second multivibrator. The time of receipt of an input pulse is indicated by the time of transmission of an output signal from this multivibrator.

REFERENCES:
patent: 3600688 (1971-08-01), Booth
patent: 3693028 (1972-09-01), Fussell

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