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:
Feb. 19, 2008
Filed:
Mar. 31, 2004
Hiroyuki Sakuyama, Tokyo, JP;
Takao Inoue, Kanagawa, JP;
Shin Aoki, Kanagawa, JP;
Keiichi Ikebe, Kanagawa, JP;
Taku Kodama, Kanagawa, JP;
Takeshi Koyama, Tokyo, JP;
Ikuko Yamashiro, Kanagawa, JP;
Takashi Maki, Kanagawa, JP;
Akira Takahashi, Kanagawa, JP;
Takanori Yano, Kanagawa, JP;
Hiroyuki Sakuyama, Tokyo, JP;
Takao Inoue, Kanagawa, JP;
Shin Aoki, Kanagawa, JP;
Keiichi Ikebe, Kanagawa, JP;
Taku Kodama, Kanagawa, JP;
Takeshi Koyama, Tokyo, JP;
Ikuko Yamashiro, Kanagawa, JP;
Takashi Maki, Kanagawa, JP;
Akira Takahashi, Kanagawa, JP;
Takanori Yano, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image compressing apparatus divides an image into plural tiles, decomposes each tile into plural sub band by frequency conversion, and conducts bit plane encoding of each sub band for each encoding unit, wherein the image compressing apparatus includes a code discarding unit selectively discarding a code obtained by the bit plane encoding for each encoding unit, and wherein the code discarding unit includes a discard amount setting unit that makes generally even the amount of code discarding in the encoding units that are in mutually adjacent relationship across a tile boundary.