Patent · US Active

Accurately calculating acoustic time-of-flight

US11971387B2 · kind B2 · utility

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14Claims
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Key dates

Filing dateApr 13, 2021
Grant dateApr 30, 2024
Priority date
Expiry dateOct 29, 2041

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2291/02475
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

The subject disclosure presents systems and computer-implemented methods for determining an acoustic time-of-flight (TOF) of sound waves through a sample material with greater accuracy and in a more repeatable fashion, by invoking one or more of an envelope generation for an error function, fitting a non-linear curve to an ultrasound frequency sweep, or performing a clustered piece-wise linear regression on individual linear parts of the ultrasonic frequency sweep. The systems and methods are useful for, among other things, monitoring diffusion of fluids through porous materials, such as tissue samples.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.