ALEXANDRIA, Va., June 6 -- United States Patent no. 12,284,348, issued on April 22, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).
"Control and use of chroma quantization parameter values" was invented by Gary J. Sullivan (Bellevue, Wash.) and Sandeep Kanumuri (Redmond, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Innovations in control and use of chroma quantization parameter ("QP") values that depend on hum QP values. More generally, the innovations relate to control and use of QP values for a secondary color component that depend on QP values for a primary color component. For example, during encoding, an encoder determines a QP index from a primary component QP and secondary...