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. 07, 2026

Filed:

Sep. 17, 2024
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Martin Pettersson, Vallentuna, SE;

Rickard Sjöberg, Stockholm, SE;

Mitra Damghanian, Upplands-Bro, SE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/70 (2014.01); H04N 19/463 (2014.01); H04N 19/597 (2014.01);
U.S. Cl.
CPC ...
H04N 19/70 (2014.11); H04N 19/463 (2014.11); H04N 19/597 (2014.11);
Abstract

Providing backward compatibility in terms of a media bitstream and a media player conforming to different versions of a media bitstream syntax specification. In one embodiment, a bitstream is made backward compatible by including in the bitstream a first entry for a feature available in the media bitstream and second entry for an updated feature available in the media bitstream, where the first entry is understood both by a media player supporting a first version of a syntax specification and a media player supporting an updated version of the syntax specification, and the second entry is understood by the media player supporting the updated version of the syntax specification, but is not understood by the media player supporting the first version of the syntax specification.


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