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. 21, 2025
Filed:
Dec. 13, 2021
Koninklijke Philips N.v., Eindhoven, NL;
Man M Nguyen, Melrose, MA (US);
Ramon Quido Erkamp, Swampscott, MA (US);
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
A vibration actuator () for mechanically generating a shear wave comprises a plurality of n rotational vibrators (), an accelerometer (), and a controller (). The plurality of n rotational vibrators enables generation of a vibration vector with desired directional behavior selected from a plurality of vibration vectors () of different directional behaviors. Each rotational vibrator comprises an independently controllable motor () having a drive shaft () and an eccentric disk (). The accelerometer is arranged to detect a vibration vector generated by at least two of the plurality of n rotational vibrators. The controller selectively controls a first set of two rotational vibrators to rotate respective eccentric disks in a first coordinated manner to produce a first vibration vector, and a second set of two rotational vibrators to rotate respective eccentric disks in a second coordinated manner to produce a second vibration vector, with different respective directional behaviors.