ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,811, issued on May 13, was assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP. LTD. (Guangdong, China).

"BDPCM-based image coding method and device therefor" was invented by Moonmo Koo (Seoul, South Korea), Jaehyun Lim (Seoul, South Korea), Junghak Nam (Seoul, South Korea) and Seunghwan Kim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An image decoding method according to the present document comprises the steps of: deriving a quantized transform coefficient for a current block on the basis of BDPCM; deriving a transform coefficient by performing dequantization on the quantized transform coefficient; and deriving a resid...