ALEXANDRIA, Va., June 9 -- United States Patent no. 12,289,492, issued on April 29, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Encoding and decoding method, apparatus, and system" was invented by Huameng Fang (Shenzhen, China), Xin Liu (Guangdong, China) and Peiyun Di (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An encoding and decoding method are disclosed. The method includes: Each of multiple viewpoint bitstreams includes a first type bitstream and a second type bitstream; when a first image frame in a first type bitstream of a first viewpoint bitstream is played, receiving a switching request that indicates to play a second viewpoint bitstream; determining a firs...