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:
Jan. 06, 2004
Filed:
Feb. 14, 2002
Mirsaid Bolorforosh, Portola Valley, CA (US);
Todor Sheljaskow, Issaquah, WA (US);
Stephen R. Barnes, Bellevue, WA (US);
Peter Guo, Woodinville, WA (US);
Sevig Ayter, Cupertino, CA (US);
Timothy L. Proulx, Santa Cruz, CA (US);
Amin M. Hanafy, Los Altos Hills, CA (US);
Siemens Medical Solutions USA, Inc., Malvern, PA (US);
Abstract
A transducer system and method for harmonic imaging is provided. At least one transducer element is provided. The transducer element comprises two or more stacked piezoelectric layers. Information from each of the layers is independently processed during one of a transmit event, a receive event, and both transmit and receive events. Information from the transducer element is provided to a filter. The filter isolates harmonic information for imaging. By providing a multi-layer transducer element with independent processing for each layer, a wide bandwidth transducer for harmonic imaging is provided. The null associated with most transducers at the second harmonic of a fundamental frequency is removed or lessened.