Ultrasonic analyzer

Details Ultrasonic analyzer Ultrasonic analyzer

1988-06-10

1989-06-06

Jaworski, Francis

Surgery

Truss

Pad

A61B 1000

Patent

active

048362107

ABSTRACT:
An ultrasonic analyzer used in an ultrasonic diagnosis instrument for minimizing the effects of noise in echo signals. The analyzer includes: a first unit for determining a start point and an end point at an analysis interval to be analyzed based on an analysis selection signal and a time signal for an input time-series signal reflected from a media; second units for generating four kinds of integration values based on four kinds of multiplication signals, each of the multiplication signals being calculated by multiplying the analysis selection signal by the time signal, or a square signal of the time signal, or a product signal of the time signal and the time-series signal, or by the time-series signal or by the time-series signal; third units for storing each of the integration values by using the time signal as an address for storing; and a fourth unit for calculating a slope of a regression curve based on difference between the integration values, a determination of the differences being based on the stage point and the end point at the analysis interval.

REFERENCES:
patent: 4389893 (1983-06-01), Ophir et al.
patent: 4569353 (1986-02-01), Ferrari
patent: 4655084 (1987-04-01), Renzel

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