ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,981, issued on April 15, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Video coding method and apparatus" was invented by Xu Chen (Shenzhen, China), Jicheng An (Shenzhen, China) and Jianhua Zheng (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of this application disclose a method for obtaining a motion vector, including: determining a reference block of a to-be-processed block, wherein the reference block and the to-be-processed block have a preset spatial correlation, the reference block is obtained based on a prediction block of the reference block determined by a refined initial motion vector, the r...