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. 01, 2005
Filed:
Feb. 04, 1998
Kanji Mihara, Kanagawa, JP;
Kanji Mihara, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
In a quantizing circuit, DCT coefficients output from a DCT circuitare quantized with the quantizing step corresponding to a quantizing index supplied from a quantizing index determining circuit. In the quantizing index determining circuit, the quantizing index is determined on the basis of a first variable corresponding to an occurrence code amount as a data accumulative amount of a bufferand a second variable corresponding to the activity of macroblocks output from an activity detection circuit. In this case, the quantizing index determining circuitadaptively sets a fixing mode for fixing the first variable or a variable mode for making variable the