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. 06, 2012
Filed:
Dec. 04, 2007
Tomoyuki Yamamoto, Osaka, JP;
Maki Takahashi, Osaka, JP;
Tomoko Aono, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A prediction control unit determines whether to use intra-prediction method or a method of prediction based on reduced image in which a predicted image is generated using a locally decoded image of a block as an object of coding that has been coded and reduced, according to the amount of high-frequency component contained in the block as the object of coding. When use of intra-prediction method is determined, locally decoded images of previously-encoded neighboring blocks stored in a frame memory are down-sampled by a down-sampling unit and subjected to intra-prediction by an intra-prediction unit, and coding is done using the prediction data. When use of prediction method based of reduced image is determined, inter-layer prediction is done using neighboring images obtained by reading locally decoded images resulting from a process of a lower layer from the frame memory, and coding is done using the prediction data.