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. 27, 2021
Filed:
Apr. 03, 2020
Google Llc, Mountain View, CA (US);
Edward Beckett, Cambridge, GB;
Mark William Starnes, Sunnyvale, CA (US);
Google LLC, Mountain View, CA (US);
Abstract
A distributed mode loudspeaker (DML) includes a flat panel extending in a panel plane. The DML also includes a rigid, elongate member displaced from the flat panel and extending parallel to the panel plane, the elongate member being mechanically coupled to the flat panel at a first position along the elongate member and extending away from the first position to an end of the member free to vibrate in a direction perpendicular to the plane. The elongate member includes a soft magnetic material. The DML also includes an electromagnet system including at least one electrically-conducting coil having an axis perpendicular to the panel plane and displaced from the elongate member. The DML further includes an electronic control module electrically coupled to the electromagnet system and programmed to energize the electrically-conducting coil sufficient such that a magnetic field produced by the electrically-conducting coil displaces the free end of the elongate member.