ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,423,447, issued on Sept. 23, was assigned to Hong Kong Applied Science and Technology Research Institute Co. Ltd. (Hong Kong).

"Optical-digital encoding-decoding system" was invented by Ming Wai Alwin Tam (Hong Kong), Zhiqi Yao (Hong Kong), Kam Ho Samuel Poon (Hong Kong), Man To Chow (Hong Kong), Peisong Hua (Hong Kong), Kin Lung Chan (Hong Kong) and Kwok Sing Cheng (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "Anti-counterfeiting is benefited by integrating both optical and digital encoding-decoding approaches for spoof protection, e.g., in print anti-spoofing. An optical-digital encoding-decoding system uses an encoded medium, such as a s...