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.:

US 7218257 B1

PDF
Full Text
Expired
Date of Patent:
May. 15, 2007

Filed:

Jul. 29, 2004
Applicants:

Byung-sun Choi, Gunpo-si, KR;

Kang-wook Chun, Gyeonggi-do, KR;

Inventors:

Byung-sun Choi, Gunpo-si, KR;

Kang-wook Chun, Gyeonggi-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 7/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus and method for variable length coding are provided. The apparatus for variable length coding includes a central processing unit which has a software module programmed in advance for variable length coding in a predetermined method, performs variable length coding of input symbol data by using the software module, and generates variable length code information. The apparatus further includes a bitstream processor which is a separate processor receiving the variable length code information from the central processing unit and generating a bitstream. According to the apparatus and method, modification or addition of a VLC table can be more easily performed through downloading software such that new video data coding standards can be easily supported. Also, by implementing the bitstream processor as a separate dedicated processor and thus implementing variable length coding as a software module, load to the central processing unit is reduced and high speed processing is enabled.


Find Patent Forward Citations

Choi, Byung-sun. (2007). Apparatus and method for variable length coding (U.S. Patent No. 7218257). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7218257

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