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. 07, 2017
Filed:
Sep. 19, 2013
Applicant:
Blackberry Limited, Waterloo, CA;
Inventors:
Jing Wang, Waterloo, CA;
Xiaofeng Wang, Markham, CA;
Dake He, Waterloo, CA;
Tianying Ji, Toronto, CA;
Assignee:
BlackBerry Limited, Waterloo, Ontario, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 19/61 (2014.01); H04N 19/13 (2014.01); H04N 19/157 (2014.01); H04N 19/91 (2014.01);
U.S. Cl.
CPC ...
H04N 19/61 (2014.11); H04N 19/13 (2014.11); H04N 19/157 (2014.11); H04N 19/91 (2014.11);
Abstract
Methods and devices for video coding are described. If an intra-prediction mode to be used in encoding a block of residual data is in a specific predetermined class, e.g., the horizontal class, then at least a portion of a quantized transformed block of residual data is transposed during encoding. Likewise, if an intra-prediction mode that was used to generate an encoded block of residual data is in such a class, then at least a portion of an entropy-decoded block of residual data is transposed during decoding.