ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,511, issued on Sept. 22, was assigned to AAC Technologies Pte. Ltd. (Singapore).
"Resonator with plurality of air passages" was invented by Benedict Slotte (Tampere, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a resonator. The resonator includes: at least one air cavity and a plurality of air passages communicating with the air cavity. The air cavity and the plurality of air passages are tuned to generate one or more acoustic resonances. Therefore, the desired low acoustic damping can be reasonably well maintained, while distributing higher modes over a wider set of frequencies, while also making each of them proportionally w...