Timing discriminator using leading-edge extrapolation

Patent · Tue Dec 20 04:00:00 EST 1983

OSTI ID:6946050

Gottschalk, B

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 flipflop 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.

• Assignee: The United States of America as represented by the United States Dept. of Energy, Washington, DC
• Patent Number(s): US 4421995
• OSTI ID: 6946050
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
CAPACITORS
COMPARATOR CIRCUITS
DESIGN
DISCRIMINATORS
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
MEASURING INSTRUMENTS
OPERATION
PULSE CIRCUITS
PULSE DISCRIMINATORS
PULSE RISE TIME
PULSES
TIME INTERVAL ANALYZERS
TIMING CIRCUITS
TIMING PROPERTIES