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:
Aug. 18, 2020
Filed:
Sep. 15, 2014
Koninklijke Philips N.v., Eindhoven, NL;
Richard Edward Davidsen, Eindhoven, NL;
Junho Song, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
An ultrasound transducer assembly () is disclosed comprising a plurality of transducer elements () for transmitting and receiving ultrasound waves () each having a substrate () and a flexible membrane () disposed in a distance from a substrate. An AC voltage control unit () is provided for controlling an AC voltage provided to each of the transducer elements, and a DC voltage control unit () for controlling a DC bias voltage provided to the transducer elements in order to bring the flexible membranes in a collapse mode into contact with the substrate. The DC voltage control unit is adapted to disconnect the DC bias voltage from the transducer elements temporarily during the operation of the ultrasound transducer assembly to limit the collapse mode.