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. 02, 2008
Filed:
Aug. 13, 2002
Marino Cerofolini, Subbiano, IT;
Marino Cerofolini, Subbiano, IT;
Esaote, S.p.A., Casale Monferrato, IT;
Abstract
A method for transmitting ultrasound pulses and receiving echo signals at a harmonic of the transmission frequency includes the steps of generating a signal for exciting a transducer to transmit at least one ultrasound pulse at a basic transmission frequency and receiving the reflection echo of said pulse at a harmonic of the frequency of the transmitted pulse, any contributions to the harmonic frequency being removed or attenuated in the signal for exciting pulse transmission, characterized in that the signal for exciting the transducer/s is filtered or coupled thereto via a resonant circuit which is calibrated to the basic frequency. In combination therewith or alternatively thereto, the method includes a resonant circuit for additional coupling with a receiver. Included is an apparatus for transmitting ultrasound pulses and receiving echo signals at a harmonic of the transmission frequency, particularly an ultrasound imaging probe and an ultrasound imaging machine.