ALEXANDRIA, Va., July 9 -- United States Patent no. 12,354,622, issued on July 8, was assigned to Amazon Technologies Inc. (Seattle).
"Extended audio watermarks" was invented by Christopher Evans (Somerville, Mass.), Sumit Garg (Acton, Mass.), Ameya Agaskar (Bedford, Mass.), Mohammad Edris Qarghah (Boxborough, Mass.) and Zhengping Jin (Waltham, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a system for encoding audio watermarks with time extensions to enable enhanced watermark detection. An extended audio watermark may include an existing audio watermark and a watermark extension, enabling backwards compatibility with existing watermark detection while also enabling enhanced waterm...