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:
May. 19, 2026
Filed:
Dec. 29, 2023
Sonos, Inc., Santa Barbara, CA (US);
Timothy W. Sheen, Brighton, MA (US);
Jonathan Oswaks, Thousand Oaks, CA (US);
Linduo Liu, Shanghai, CN;
Minqiang Yang, Beijing, CN;
Stephen Everett, Natick, MA (US);
Nigel Pemberton-Pigott, Goleta, CA (US);
Michael Ahrens, San Luis Obispo, CA (US);
Sonos, Inc., Goleta, CA (US);
Abstract
A negative-stiffness audio transducer can include a frame, a voice coil, and a suspension assembly resiliently attaching the voice coil to the frame. The suspension assembly provides a negative stiffness to axial movement of the voice coil. The transducer further includes a diaphragm coupled to the voice coil such that the voice coil moves the diaphragm in an axially inward direction or an axially outward direction in response to an electrical signal. A stabilizer can be used to selectively move the diaphragm axially inward or outward to maintain the audio transducer in an operational state.