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. 04, 2025
Filed:
Nov. 10, 2023
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Fangjun Pu, Sunnyvale, CA (US);
Taoran Lu, Santa Clara, CA (US);
Peng Yin, Ithaca, NY (US);
Sean Thomas McCarthy, San Francisco, CA (US);
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Abstract
A quantization parameter signalling mechanism for both SDR and HDR content in video coding is described using two approaches. The first approach is to send the user-defined Qptable directly in high level syntax. This leads to more flexible and efficient QP control for future codec development and video content coding. The second approach is to signal luma and chroma QPs independently. This approach eliminates the need for Qptables and removes the dependency of chroma quantization parameter on luma QP.