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:
May. 30, 2023

Filed:

Sep. 16, 2022
Applicant:

Microsoft Technology Licensing, Llc, Redmond, WA (US);

Inventors:

Gary J. Sullivan, Bellevue, WA (US);

Lihua Zhu, Mountain View, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/00 (2014.01); H04N 19/46 (2014.01); H04N 21/234 (2011.01); H04N 21/44 (2011.01); H04N 19/70 (2014.01); H04N 19/573 (2014.01); H04N 19/58 (2014.01); H04N 7/14 (2006.01); H04N 7/15 (2006.01); H04N 7/18 (2006.01);
U.S. Cl.
CPC ...
H04N 19/46 (2014.11); H04N 19/70 (2014.11); H04N 21/23424 (2013.01); H04N 21/44016 (2013.01); H04N 7/147 (2013.01); H04N 7/15 (2013.01); H04N 7/18 (2013.01); H04N 19/573 (2014.11); H04N 19/58 (2014.11);
Abstract

Innovations in syntax and semantics of coded picture buffer removal delay ('CPBRD') values potentially simplify splicing operations. For example, a video encoder sets a CPBRD value for a current picture that indicates an increment value relative to a nominal coded picture buffer removal time of a preceding picture in decoding order, regardless of whether the preceding picture has a buffering period SEI message. The encoder can signal the CPBRD value according to a single-value approach in which a flag indicates how to interpret the CPBRD value, according to a two-value approach in which another CPBRD value (having a different interpretation) is also signaled, or according to a two-value approach that uses a flag and a delta value. A corresponding video decoder receives and parses the CPBRD value for the current picture. A splicing tool can perform simple concatenation operations to splice bitstreams using the CPBRD value for the current picture.


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