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:
May. 27, 2014
Filed:
Oct. 20, 2009
Yoshiteru Hayashi, Kyoto, JP;
Yoshiteru Hayashi, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An image decoding device capable of performing parallel decoding of coded image data with a small memory bandwidth while suppressing momentary increase in the amount of data transferred for the decoding. An image decoding device () includes: an external memory () which stores data of reference images; a stream parser unit () which decodes reference information indicating the number of reference images to be referred to on a block-by-block basis; an amount-of-transferred-data prediction unit () which calculates, on a block-by-block basis using the reference information, a predictive data amount of a reference image to be read out from the external memory (); a block determination unit () which determines, using the predictive data amount, multiple blocks to be decoded in parallel, so as to reduce variation in amounts of data read out from the external memory (); and macroblock decoding units (to) which decode the determined blocks in parallel.