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:
Nov. 19, 2024
Filed:
Apr. 25, 2023
Applicant:
Sony Group Corporation, Tokyo, JP;
Inventor:
Jun Xu, San Jose, CA (US);
Assignee:
SONY GROUP CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/00 (2014.01); H03M 7/30 (2006.01); H03M 7/40 (2006.01); H04N 19/124 (2014.01); H04N 19/176 (2014.01); H04N 19/184 (2014.01); H04N 19/50 (2014.01); H04N 19/61 (2014.01); H04N 19/70 (2014.01); H04N 19/91 (2014.01);
U.S. Cl.
CPC ...
H04N 19/124 (2014.11); H03M 7/3071 (2013.01); H03M 7/4018 (2013.01); H03M 7/6088 (2013.01); H04N 19/176 (2014.11); H04N 19/184 (2014.11); H04N 19/50 (2014.11); H04N 19/61 (2014.11); H04N 19/70 (2014.11); H04N 19/91 (2014.11);
Abstract
Video coding systems or apparatus utilizing context-based adaptive binary arithmetic coding (CABAC) during encoding and/or decoding, are configured according to the invention with an enhanced binarization of non-zero Delta-QP (dQP). During binarization the value of dQP and the sign are separately encoded using unary coding and then combined into a binary string which also contains the dQP non-zero flag. This invention capitalizes on the statistical symmetry of positive and negative values of dQP and results in saving bits and thus a higher coding efficiency.