ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,548, issued on June 10, was assigned to SENSIBEL AS (Oslo, Norway).
"Optical microphone substrate" was invented by Hakon Sagberg (Oslo, Norway) and Jakob Vennerod (Oslo, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical microphone assembly including a substrate having a first and second substrate portions with the first substrate portion being thinner than the second substrate portion, an interferometic arrangement including a membrane and at least one optical element including a surface of the first substrate portion and/or is disposed on a surface of the first substrate portion, and the at least one optical element does not include ...