ALEXANDRIA, Va., June 16 -- United States Patent no. 12,307,623, issued on May 20, was assigned to Shenzhen Saiwai Technology Co. Ltd. (Shenzhen, China).

"Method and device for precisely obtaining fan-shaped image frame of paper cup" was invented by Ming Huang (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a method and device for precisely obtaining a fan-shaped image frame of a paper cup. The method includes: outputting a rectangular detection box and a binary mask of a fan-shaped image; obtaining a binary fan-shaped image; determining a number of times that a side line of the rectangular detection box passes through a frame communication area of the binary fan-shaped image, ...