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:
Nov. 16, 2004
Filed:
Oct. 26, 2001
Yuji Kawashima, Tokyo, JP;
Atsushi Asano, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A picture coding apparatus has a signal processor for generating macro-block information by calculating and quantizing the DCTs of a picture signal of a given unit are calculated for each macro-block MB. This information is input to a syntax generator to generate syntax, which is coded by a variable-length coding processor . Quantized DCT coefficients of macro information before coding are counted by a count unit , and a code size after coding the macro-block information is counted by a count unit . A calculation unit calculates an average code length from the accumulated value of the two code sizes. An estimation unit estimates a generation code size after coding given macro-block information input to the syntax generator on the basis of the average code size. A calculation unit calculates a stuffing size by comparing the estimated generation code size with an actually generated generation code size, and the syntax generator generates syntax on the basis of this stuffing size and macro-block MB information.
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