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:
Apr. 01, 2014
Filed:
Apr. 13, 2010
Muhammed Z. Coban, San Diego, CA (US);
Marta Karczewicz, San Diego, CA (US);
Rahul P. Panchal, San Diego, CA (US);
Seyfullah H Oguz, San Diego, CA (US);
Amit Rohatgi, San Diego, CA (US);
Muhammed Z. Coban, San Diego, CA (US);
Marta Karczewicz, San Diego, CA (US);
Rahul P. Panchal, San Diego, CA (US);
Seyfullah H Oguz, San Diego, CA (US);
Amit Rohatgi, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Techniques are described for efficient transcoding from a first format that supports I-units, P-units and B-units to a second format that supports I-units and P-units but does not support the B-units. In particular, techniques are described for converting B-frames or B-slices of the first format into P-frames or P-slices of the second format. The techniques avoid the need to decode and re-encode that frames or slices. Instead, residuals associated with the B-video blocks in the first format are augmented and made to be dependent upon only one of the two lists associated with the B-video blocks so that such B-video blocks in the first format can be redefined as P-video blocks in the second format.