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:
Mar. 08, 2022
Filed:
Feb. 17, 2021
Applicant:
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Inventors:
Thomas W. Holcomb, Bothell, WA (US);
Sridhar Srinivasan, Shanghai, CN;
Pohsiang Hsu, Redmond, WA (US);
Chih-Lung Lin, Redmond, WA (US);
Assignee:
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/18 (2014.01); H04N 19/91 (2014.01); H04N 19/70 (2014.01); H04N 19/46 (2014.01); H04N 19/61 (2014.01); H04N 19/124 (2014.01); H04N 19/126 (2014.01); H04N 19/136 (2014.01); H04N 19/137 (2014.01); H04N 19/17 (2014.01); H04N 19/184 (2014.01); H04N 19/186 (2014.01); H04N 19/44 (2014.01); H04N 19/625 (2014.01); H04N 19/176 (2014.01);
U.S. Cl.
CPC ...
H04N 19/18 (2014.11); H04N 19/124 (2014.11); H04N 19/126 (2014.11); H04N 19/136 (2014.11); H04N 19/137 (2014.11); H04N 19/17 (2014.11); H04N 19/176 (2014.11); H04N 19/184 (2014.11); H04N 19/186 (2014.11); H04N 19/44 (2014.11); H04N 19/46 (2014.11); H04N 19/61 (2014.11); H04N 19/625 (2014.11); H04N 19/70 (2014.11); H04N 19/91 (2014.11);
Abstract
A video codec uses fractional increments of quantization step size at high bit rates to permit a more continuous variation of quality and/or bit rate as the quantization scale changes. For high bit rate scenarios, the bit stream syntax includes an additional syntax element to specify fractional step increments (e.g., half step) of the normal quantizer scale step sizes.