The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2024
Filed:
Mar. 12, 2021
Sony Group Corporation, Tokyo, JP;
Karl James Sharman, Basingstoke, GB;
Adrian Richard Browne, Basingstoke, GB;
Stephen Mark Keating, Basingstoke, GB;
SONY GROUP CORPORATION, Tokyo, JP;
Abstract
A video data encoding method for encoding an array of video data values comprises the steps of: frequency-transforming the video data values according to a frequency transform, to generate an array of frequency-transformed values by a matrix-multiplication process using a transform matrix having a data precision of fourteen bits, the frequency transform being a discrete cosine transform; defining a 64×64 transform matrix Mfor a 64×64 DCT transform, the matrix Mbeing defined by the accompanying FIGS.-and; for an N×N transform where N is 2, 4, 8 or 16, subsampling the 64×64 transform matrix Mto select a subset of N×N values, the subset M[x][y] of values being defined by:[][]=[][(2)] for=0 . . . (−1).