US Patent Issued to TENCENT AMERICA on June 17 for "Frequency-dependent joint component secondary transform" (California Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,335,524, issued on June 17, was assigned to TENCENT AMERICA LLC (Palo Alto, Calif.).

"Frequency-dependent joint component secondary transform" was invented by Xin Zhao (San Diego), Madhu Peringassery Krishnan (Mountain View, Calif.) and Shan Liu (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for performing a frequency-dependent joint component secondary transform (FD-JCST). The method includes obtaining a plurality of transform coefficients in a transform coefficient block; determining whether at least one of the plurality of transform coefficients is a low-frequency coefficient; based on determining that the at ...