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:
Nov. 01, 2011
Filed:
Feb. 09, 2007
Applicant:
Zhicheng Lancelot Wang, Los Altos, CA (US);
Inventor:
Zhicheng Lancelot Wang, Los Altos, CA (US);
Assignee:
Ericsson Television, Inc., Duluth, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 7/48 (2006.01); H04N 7/36 (2006.01); H04N 7/38 (2006.01); H04N 7/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for video rate control for a video encoding system for encoding a video signal includes determininga variance of pixel values over a time t of the video signal and calculatinga quantization parameter for the time t using the pixel variance and a number of output bits for the time t and a quantization parameter, pixel variance and a number of output bits used for an immediately previous time t−1.