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:
Jan. 31, 2012
Filed:
Jan. 02, 2008
Kazuhisa Hosaka, Tokyo, JP;
Takahiro Fukuhara, Kanagawa, JP;
Junya Araki, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
An information processing apparatus for encoding image data includes: a rearranging unit for rearranging coefficient data divided for each frequency band in order of executing synthesis processing for synthesizing the coefficient data of multiple sub-bands divided into frequency bands to generate image data for each line block including image data equivalent to the number of lines necessary for generating coefficient data equivalent to one line of the sub-band of the lowest frequency components; a control unit for calculating a new quantization step size at the time of encoding the image data for each coding unit using the ratio between the generated code amount at the time of encoding with a known quantization step size and a target code amount at the time of encoding the image data; and an encoding unit for encoding the coefficient data for each coding unit to generate encoded data using the calculated quantization step size.