The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2020
Filed:
Jun. 29, 2015
Pcme Limited, St Ives, GB;
Neil D'Souza-Mathew, Cambridge, GB;
Robert Fryers, Bedford, GB;
Roger Millington, Huntingdon, GB;
David Unitt, Cambridge, GB;
PCME LIMITED, Cambridgeshire, GB;
Abstract
Method and apparatus relating to ultrasound flow probes Measurement of time of flight of ultrasound pulses comprises: transmitting the pulses across a fluid flow; detecting a waveform () of the pulses, generating a cross-correlation between the waveform () and a tone () and identifying a plurality of peaks () in the cross-correlation; fitting a curve template () to the waveform at locations () corresponding to the peaks () and identifying the location () of the minimum error; performing a further cross-correlation () between the waveform () and the tone () over only a portion of the waveform () containing the minimum error location (); and determining the temporal location corresponding to the maximum () of the further cross-correlation ().