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.

Date of Patent:
Jul. 29, 2025

Filed:

Mar. 19, 2024
Applicant:

Dolby Video Compression, Llc, Wilmington, DE (US);

Inventors:

Tung Nguyen, Berlin, DE;

Heiner Kirchhoffer, Berlin, DE;

Detlev Marpe, Berlin, DE;

Assignee:

Dolby Video Compression, LLC, Wilmington, DE (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/60 (2014.01); H03M 7/40 (2006.01); H04N 19/91 (2014.01);
U.S. Cl.
CPC ...
H04N 19/60 (2014.11); H03M 7/4018 (2013.01); H03M 7/4075 (2013.01); H04N 19/91 (2014.11);
Abstract

An idea used herein is to use the same function for the dependency of the context and the dependency of the symbolization parameter on previously coded/decoded transform coefficients. Using the same function—with varying function parameter—may even be used with respect to different transform block sizes and/or frequency portions of the transform blocks in case of the transform coefficients being spatially arranged in transform blocks. A further variant of this idea is to use the same function for the dependency of a symbolization parameter on previously coded/decoded transform coefficients for different sizes of the current transform coefficient's transform block, different information component types of the current transform coefficient's transform block and/or different frequency portions the current transform coefficient is located within the transform block.


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