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:
Jan. 02, 2024
Filed:
Apr. 25, 2022
Applicant:
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Inventors:
Chengjie Tu, Sammamish, WA (US);
Sridhar Srinivasan, Redmond, WA (US);
Assignee:
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/124 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/61 (2014.01); H04N 19/126 (2014.01); H04N 19/136 (2014.01);
U.S. Cl.
CPC ...
H04N 19/124 (2014.11); H04N 19/126 (2014.11); H04N 19/136 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/61 (2014.11);
Abstract
A digital media encoder/decoder uses a flexible quantization technique that provides the ability to vary quantization along various dimensions of the encoded digital media data, including spatial, frequency sub bands and color channels. The codec utilizes a signaling scheme to signal various permutations of flexible quantization combinations efficiently for primary usage scenarios. When a choice of quantizer is available, the codec efficiently encodes the current quantizer by defining a subset of quantizers and indexes the current quantizer from the set.