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Title: Timing discriminator using leading-edge extrapolation

Abstract

A discriminator circuit to recover timing information from slow-rising pulses by means of an output trailing edge, a fixed time after the starting corner of the input pulse, which is nearly independent of risetime and threshold setting. This apparatus comprises means for comparing pulses with a threshold voltage; a capacitor to be charged at a certain rate when the input signal is one-third threshold voltage, and at a lower rate when the input signal is two-thirds threshold voltage; current-generating means for charging the capacitor; means for comparing voltage capacitor with a bias voltage; a flip-flop to be set when the input pulse reaches threshold voltage and reset when capacitor voltage reaches the bias voltage; and a clamping means for discharging the capacitor when the input signal returns below one-third threshold voltage.

Inventors:
 [1]
  1. (Palo Alto, CA)
Issue Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC), Menlo Park, CA
OSTI Identifier:
864810
Patent Number(s):
4421995
Assignee:
United States of America as represented by United States (Washington, DC) SLAC
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
timing; discriminator; leading-edge; extrapolation; circuit; recover; information; slow-rising; pulses; means; output; trailing; edge; fixed; time; starting; corner; input; pulse; nearly; independent; risetime; threshold; setting; apparatus; comprises; comparing; voltage; capacitor; charged; rate; signal; one-third; two-thirds; current-generating; charging; bias; flip-flop; set; reaches; reset; clamping; discharging; returns; below; threshold voltage; generating means; apparatus comprises; input signal; bias voltage; trailing edge; input pulse; comprises means; pulse reaches; apparatus comprise; nearly independent; timing information; voltage capacitor; /327/

Citation Formats

Gottschalk, Bernard. Timing discriminator using leading-edge extrapolation. United States: N. p., 1983. Web.
Gottschalk, Bernard. Timing discriminator using leading-edge extrapolation. United States.
Gottschalk, Bernard. Sat . "Timing discriminator using leading-edge extrapolation". United States. https://www.osti.gov/servlets/purl/864810.
@article{osti_864810,
title = {Timing discriminator using leading-edge extrapolation},
author = {Gottschalk, Bernard},
abstractNote = {A discriminator circuit to recover timing information from slow-rising pulses by means of an output trailing edge, a fixed time after the starting corner of the input pulse, which is nearly independent of risetime and threshold setting. This apparatus comprises means for comparing pulses with a threshold voltage; a capacitor to be charged at a certain rate when the input signal is one-third threshold voltage, and at a lower rate when the input signal is two-thirds threshold voltage; current-generating means for charging the capacitor; means for comparing voltage capacitor with a bias voltage; a flip-flop to be set when the input pulse reaches threshold voltage and reset when capacitor voltage reaches the bias voltage; and a clamping means for discharging the capacitor when the input signal returns below one-third threshold voltage.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}

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