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:
Jul. 25, 2006
Filed:
Nov. 16, 2001
Tsutomu Uenoyama, Kawasaki, JP;
Kazunori Yamada, Tokyo, JP;
Tsutomu Uenoyama, Kawasaki, JP;
Kazunori Yamada, Tokyo, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A picture coding apparatus contains a rate control unit, an image buffer, an orthogonal transformation unit, a quantizing unit, a variable length coding unit, a motion predicting unit, a coding unit, and an output buffer. The rate control unitallocates a target code amount to each of pictures, and transfers a quantizing valuewhich is determined by a code amount to the quantizing unit. This target code amount is calculated by adding a reference target code amount to a correction value. The correction value is calculated based on a difference between a predetermined target value and an actual value of a remaining coding picture amount of the output buffer