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.

Date of Patent:
Mar. 28, 2017

Filed:

Apr. 18, 2013
Applicant:

Google Inc., Mountain View, CA (US);

Inventors:

Qunshan Gu, Hayward, CA (US);

Marco Paniconi, Campbell, CA (US);

Assignee:

GOOGLE INC., Mountain View, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 19/46 (2014.01); H04N 19/91 (2014.01);
U.S. Cl.
CPC ...
H04N 19/46 (2014.11); H04N 19/91 (2014.11);
Abstract

Encoding and decoding is accomplished herein using a reference picture list. Reference frames are identified with picture numbers and are assigned to reference picture buffers when used for encoding. The picture numbers associated the reference frames in the reference picture buffers are ranked. Reordering can occur to assign short word lengths to those reference frames used frequently for prediction. The resulting encoded reference picture list is sent to a decoder. The decoder decodes the reference picture list. By comparing picture numbers in the reference picture list with picture numbers of reference picture buffers of the decoder, the encoder and decoder buffers can remain in sync even under packet loss conditions. For example, the decoder can use the decoded reference picture list to determine missing and unused reference frames.


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