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. 16, 2013
Filed:
Sep. 30, 2010
Satoru Adachi, Yokohama, JP;
Minoru Etoh, Yokohama, JP;
Sadaatsu Kato, Yokosuka, JP;
Thiow Keng Tan, Jalan Sindor, SG;
Satoru Adachi, Yokohama, JP;
Minoru Etoh, Yokohama, JP;
Sadaatsu Kato, Yokosuka, JP;
Thiow Keng Tan, Jalan Sindor, SG;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
Image encoding apparatusaccording to the present invention is an image encoding apparatusfor dividing image signals into blocks, performing an orthogonal transform of each block, reading resultant orthogonal transform coefficients to obtain a coefficient string, and performing entropy coding, which has block selectorfor selecting a size of a block for the orthogonal transform, out of a plurality of blocks of different sizes; coefficient string dividerfor, when a block of a size larger than a minimum size is selected by block selector, dividing a coefficient string in the block into a plurality of coefficient strings of a length equal to that of a coefficient string in a block of the minimum size; and encoderfor performing entropy coding adapted to the coefficient string in the block of the minimum size. This substantializes the image encoding apparatus capable of achieving efficient entropy coding in the orthogonal transform of variable sizes.