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Automatic Peak Time Detector

IP.com Disclosure Number: IPCOM000098843D
Original Publication Date: 1958-Jun-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Disney, JV: AUTHOR

Abstract

This concerns apparatus for measuring the time at which an electrical signal reaches its maximum amplitude. The signal is applied to three devices of the apparatus as shown. The signal to the Pulse Generator D/2 provides an output pulse START at one-half the delay D from the origin of the signal. The signal is delayed and inverted and is subtracted from the original signal to produce a difference signal which is applied to the Polarity Change Detector, the latter providing an output pulse STOP when the difference signal changes polarity. The output of an oscillator is controlled by the START and STOP pulses and is fed to a digital counter, the count of the latter being a measure of the time taken for the signal to reach its maximum amplitude.

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Automatic Peak Time Detector

This concerns apparatus for measuring the time at which an electrical signal reaches its maximum amplitude. The signal is applied to three devices of the apparatus as shown. The signal to the Pulse Generator D/2 provides an output pulse START at one-half the delay D from the origin of the signal. The signal is delayed and inverted and is subtracted from the original signal to produce a difference signal which is applied to the Polarity Change Detector, the latter providing an output pulse STOP when the difference signal changes polarity. The output of an oscillator is controlled by the START and STOP pulses and is fed to a digital counter, the count of the latter being a measure of the time taken for the signal to reach its maximum amplitude. The circuits for inverting and delaying must provide an undistorted signal equal in amplitude to the input signal.

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