US Patent Issued to InterDigital CE Patent Holdings on July 15 for "High precision 4x4 DST7 and DCT8 transform matrices" (French Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,363,346, issued on July 15, was assigned to InterDigital CE Patent Holdings SAS (Paris).

"High precision 4x4 DST7 and DCT8 transform matrices" was invented by Karam Naser (Mouaze, France), Fabrice Le Leannec (Betton, France), Philippe De Lagrange (Betton, France) and Philippe Bordes (Laille, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for reconstructing a block of a picture comprising: applying an inverse transform to a block of transform coefficients using a first matrix of integer coefficients representative of the inverse transform, wherein the first matrix of integer coefficients is the inverse of a second matrix of integer coeffi...