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. 30, 2004
Filed:
Sep. 25, 2001
Yuji Kawashima, Tokyo, JP;
Atsushi Asano, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A video encoder includes a signal processing unit for producing block information such as quantization scale and quantized DCT coefficients and a coding unit for variable-length coding the quantized block information. The amount of generated coded data per unit time (Evop) is estimated from the count (Ncoef(i)) of quantized DCT coefficients contained in block information prior to coding, the amount of coded data (C(y)), and the average codeword length (L(y)) of coded block information. A quantization scale control unit determines the most suitable quantization scale factor on the basis of the target amount of generated coded data (Tvop) and the amount of generated coded data (Evop) and sends it to a quantization unit in the signal processing unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile