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:
Oct. 24, 2006
Filed:
Jun. 10, 2002
Yutaka Sano, Miyagi, JP;
Hiroyuki Sakuyama, Tokyo, JP;
Taku Kodama, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image compression apparatus includes a tile specifying section specifying rectangular tiles having an arbitrary size with respect to an image, an image dividing section dividing the image using the specified rectangular tiles, a bit-plane decomposing section decomposing each of the specified tiles dividing the image into bit-planes, a bit-plane ordering section ordering the bit-planes decomposing each of the specified tiles depending on a coding sequence, a layer forming section forming layers by the ordered bit-planes, and a suppressing section suppressing a quantization rate of a region low relative to other regions of the image.