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. 07, 2015
Filed:
Jul. 19, 2006
John Fraser, Woodinville, WA (US);
Benoit Dufort, Stoneham, MA (US);
John Fraser, Woodinville, WA (US);
Benoit Dufort, Stoneham, MA (US);
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A transducer array of micromachined ultrasonic transducer elements is connected to a microbeamformer. Driver circuits of the microbeamformer have a first output coupled to a first electrode of a respective transducer element and a second output coupled to a second electrode of the respective transducer element. The driver circuits apply first and second time varying voltage signals to the electrodes, with one voltage signal being time inverted relative to the other. The peak-to-peak voltage applied to the transducer element is 1.75 to 2.0 times the peak-to-peak voltage of either the first or the second time varying voltage signal.