US 4,908,771 A · Method of, and apparatus for, processing distorted pulsed signals

Abstract

In order to adaptively determine the original pulse widths of individual pulses of the pulse signal, there are measured the pulse widths of the distorted pulses. A predetermined number of threshold values is preset for such measured pulse widths. The preset threshold values define classes of pulse widths intended to contain pulse widths of pulses which originally had the same pulse widths. The matching between the measured pulse widths and the preset threshold values is improved by means of a statistical evaluation of the measured pulse widths. The apparatus for carrying out the aforementioned method comprises a unit or circuit for measuring the pulse widths of the individual pulses, a unit or circuit for statistically evaluating the measured pulse widths and a unit or circuit for processing the measured pulse widths.

Claims10

Dependent claims

A method of processing a signal containing pulses which have been distorted by a preceding signal transfer operation on an original non-distorted pulsed signal, said method comprising the steps of:

measuring the pulse width of individual ones of the pulses;
presetting a predeterminate number of threshold values associated with predetermined values of the pulse width of the individual pulses;
classifying the measured pulse widths of the individual pulses in different classes defined by said predeterminate number of threshold values such that each one of said classes is associated with and indicative of an associated pulse width appearing in the original non-distorted pulsed signal;
and
during said step of classifying said measured pulse widths, continuously comparing the measured pulse widths of the individual pulses and associated ones of said predeterminate number of threshold values and selectively varying either one of (i) said associated preset threshold values or (ii) the pulse widths of said individual pulses for improving the match between said measured pulse widths and said predeterminate number of threshold values.

2 more elements

An apparatus for processing a signal containing pulses which have been distorted by a preceding signal transfer operation undertaken on an original non-distorted pulsed signal, comprising:

a pulse width processor for processing the signals containing the individual pulses;
said pulse width processor containing measuring means for measuring the pulse widths of the individual pulses;
statistical evaluating means connected with an output side of said measuring means in said pulse width processor;
said statistical evaluating means classifying the measured pulse widths in accordance with a predeterminate number of pulse width classes bounded by respective threshold values;
said statistical evaluating means containing comparator means for comparing the measured pulse widths and associated ones of said threshold values;
and
said statistical evaluating means further containing circuit means connected to said comparator means for selectively varying either one of (i) said associated threshold values or (ii) said measured pulse widths for continuously improving the match between the measured pulse widths and said predeterminate number of pulse width classes.

4 more elements

Dependencies are inferred from the claim text.

Method of, and apparatus for, processing distorted pulsed signals

Life of this patent

Method of, and apparatus for, processing distorted pulsed signals

Life of this patent

Abstract

Claims10