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:
Aug. 11, 2015
Filed:
Jan. 20, 2013
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Huanzhao Zeng, San Diego, CA (US);
Jian J. Ma, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); G09G 3/34 (2006.01); H04N 1/405 (2006.01); H04N 19/86 (2014.01);
U.S. Cl.
CPC ...
G09G 3/2003 (2013.01); G09G 3/2066 (2013.01); G09G 3/3466 (2013.01); H04N 1/4052 (2013.01); H04N 19/86 (2014.11);
Abstract
A method for reducing bit-depth of image data for an imaging device includes receiving an image frame for display to the imaging device. The method additionally includes applying temporal error diffusion for the image frame to produce a plurality of image subframes, wherein temporal errors generated in one subframe of the image frame are passed to a next subframe of the image frame for temporal error diffusion. The method also includes applying spatial error diffusion to remaining temporal errors from the temporal error diffusion of the image frame.