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.

Date of Patent:
Oct. 05, 2004

Filed:

Mar. 23, 2001
Applicant:
Inventors:

Kohji Yamada, Kawasaki, JP;

Kiyoshi Sakai, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/12 ; H04N 7/32 ;
U.S. Cl.
CPC ...
H04N 7/12 ; H04N 7/32 ;
Abstract

A method and an apparatus to realize high quality image signal encoding at a variable bit rate, which is provided by the first quantization scale—maximum data volume calculation unit that calculates the maximum data volume and the first quantization scale based on encoding results of an encoded image frame, the quantization control buffer calculation unit that calculates a predicted data volume for a given encoding block that belongs to the encoding target image frame from the maximum data volume while receiving the originated data volume of the image frame that is quantized, encoding block (macroblock) by encoding unit (macroblock), by the quantization scale and calculates the second quantization scale based on the difference between the predicted data volume and the originated data volume, and the quantization control unit that compares the first quantization scale with the second quantization scale to output the larger of the two scales.


Find Patent Forward Citations

Yamada, Kohji. (2004). Method and apparatus for image signal encoding (U.S. Patent No. 6801572). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6801572

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…