US Patent Issued to Sonos on Sept. 23 for "Wireless earbud charging" (Massachusetts Inventor)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,425,758, issued on Sept. 23, was assigned to Sonos Inc. (Goleta, Calif.).

"Wireless earbud charging" was invented by Hilmar Lehnert (Framingham, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Examples described herein relate to a charging system for wireless earbuds involving charging adapters that are attachable to the wireless earbuds. In some implementations, the charging adapter is attachable to an external surface of an earbud using a magnetic or mechanical interface that align electrodes of the charging adapter with electrodes on the wireless headset, allowing an internal battery of the earbud to draw current and charge from the charging ad...