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:
Apr. 16, 2002
Filed:
Apr. 13, 2000
Marcel Arditi, Geneva, CH;
Bracco Research S.A., Plan-les-Ouates, CH;
Abstract
The method of imaging the nonlinear components of ultrasound echo signals returned from scatterers comprises the steps of constructing a double-pulse excitation waveform, the two pulses composing this waveform having spectra with known relative frequency dependencies, differing in amplitude and phase so that the double-pulse waveform can be considered as a convolution of any single of said pulses with a known coding function, transmitting said double-pulse waveform within a single transmission of an ultrasound beam in the direction of said scatterers, deconvolving the received rf-waveform by a first appropriate decoding function to obtain a new rf-waveform, deconvolving said received rf-waveform by a second and different appropriate decoding function to obtain another rf-waveform, realigning in time both deconvolved rf-waveforms obtained from the same returned echo signal by a time delay as determined by the transmit-coding function, normalizing amplitudes and taking the sum of both rf-waveforms to effectively cancel all echo components caused by linear scatterers.