US Patent Issued to HANWHA VISION on April 8 for "Method and an apparatus for encoding/decoding residual coefficient" (South Korean Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,273,520, issued on April 8, was assigned to HANWHA VISION Co. LTD. (Seongnam, South Korea).

"Method and an apparatus for encoding/decoding residual coefficient" was invented by Dong Gyu Sim (Seoul, South Korea) and Sea Nae Park (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The encoding/decoding method and apparatus according to the present invention derives a residual coefficient of a residual block, calculates a quantization parameter for a residual block, performs dequantization on a residual coefficient using a quantization parameter, and performs inverse transform on a dequantized residual coefficient to reconstruct a residual s...