ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,513,337, issued on Dec. 30, was assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (Stockholm).

"Message referencing" was invented by Martin Pettersson (Vallentuna, Sweden), Rickard Sjoberg (Stockholm) and Mitra Damghanian (Upplands-Bro, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a referencing mechanism for messages (e.g., SEI messages) in order to reduce the bit cost when different versions of messages (e.g., SEI messages) are used in an arbitrary manner in the bitstream, e.g. in an alternating way in the bitstream. In embodiments, two SEI messages are used to express a functionality. In the first SEI message, syntax elemen...