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. 03, 2015
Filed:
Mar. 17, 2010
Seong Hee Kim, Seoul, KR;
Seong Hee Kim, Seoul, KR;
Core Logic Inc., Seoul, KR;
Abstract
An encoding device and method of using a bit rate control method which accurately predicts a target bit amount, provides excellent quality, and is applicable to a real-time environment through a simple mechanism, and a multimedia apparatus including the encoding device. The encoding device includes a group-of-pictures (GOP)-based bit assigning unit for assigning a GOP-based bit amount target, a macroblock-based bit assigning unit for assigning a macroblock-based bit amount for all macroblocks included in the GOP, a quantizing device for checking a current buffer state, determining a quantization parameter (QP) by using an alternating current (AC) coefficient obtained by transforming a macroblock if a buffer occupancy rate is lower than a predetermined limit rate, and performing quantization by using the determined QP, and a variable length coding (VLC) unit for performing VLC.