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. 12, 2010
Filed:
Apr. 22, 2004
Daiki Kudo, Tokyo, JP;
Yoshihisa Yamada, Tokyo, JP;
Hirofumi Nishikawa, Tokyo, JP;
Yoshiaki Kato, Tokyo, JP;
Daiki Kudo, Tokyo, JP;
Yoshihisa Yamada, Tokyo, JP;
Hirofumi Nishikawa, Tokyo, JP;
Yoshiaki Kato, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An image encoding apparatus includes a converterfor receiving an image signal, and for converting the image signal of individual blocks to DC components and AC components by orthogonal transformation of the individual blocks of an image frame; a predicted reference value generatorfor receiving the image signal, and for generating a predicted reference value of each image frame from DC components resulting from the orthogonal transformation of left-edge blocks of the image frame; and a differential unitfor obtaining difference values between the DC components output from the converterand the predicted reference value generated by the predicted reference value generator. The image encoding apparatus outputs a bit stream by quantizing and variable-length encoding the AC components and difference values obtained by the differential unit, and by quantizing and variable-length encoding the predicted reference value to be added to a header.