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:
Apr. 25, 2017

Filed:

Jan. 20, 2015
Applicant:

Oki Electric Industry Co., Ltd., Tokyo, JP;

Inventor:

Satoshi Nakagawa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/40 (2014.01); H04N 19/513 (2014.01);
U.S. Cl.
CPC ...
H04N 19/40 (2014.11); H04N 19/513 (2014.11);
Abstract

A coding format converter for converting an input stream of data of pictures of a first coding format into a data stream of data of pictures with a second coding format includes a decoder decoding the input stream with the first coding format, an encoder encoding the data of the picture thus decoding with the second coding format, a coding candidate search controller using first information on prediction residual availability indicative of whether or not residual information is encoded for each block in the decoded picture. When a search for coding candidates reveals a result that the first information for a coding target region of the picture is indicative of the absence of a residual, the controller refrains from searching for coding candidates which depend on second information on residual availability of the coding with the second coding format.


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