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:
Dec. 03, 2013
Filed:
Jan. 26, 2009
Toshiyuki Yoshida, Fukui, JP;
Tomoko Aono, Osaka, JP;
Norio Itoh, Osaka, JP;
Toshio Nomura, Osaka, JP;
Tomohiro Ikai, Osaka, JP;
Takeshi Tsukuba, Osaka, JP;
Toshiyuki Yoshida, Fukui, JP;
Tomoko Aono, Osaka, JP;
Norio Itoh, Osaka, JP;
Toshio Nomura, Osaka, JP;
Tomohiro Ikai, Osaka, JP;
Takeshi Tsukuba, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An image quality/rate control portionconfirms whether a predictive code amount Ci is a target code amount Rt or less. When the predictive code amount Ci is the target code amount Rt or less, the predictive code amount Ci is output to a base layer coding portion. Then, a switchis turned off. When the predictive code amount Ci exceeds the target code amount Rt, the target code amount Rt is output to the base layer coding portion. Then, the switchis turned on and (predictive code amount Ci−target code amount Rt) is output to an enhancement layer coding portion. A bufferstores coded data of the base layer coding portionand the enhancement layer coding portion In this manner, while performing fixed bit rate coding using a single transmission path, image quality of a moving image is made constant so as to prevent deterioration of image quality.