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:
Aug. 24, 2004

Filed:

Apr. 19, 2002
Applicant:
Inventors:

Jae-seong Shim, Seoul, KR;

Ki-hyun Kim, Daejeon Metropolitan, KR;

Hyun-soo Park, Seoul, KR;

Kiu-hae Jung, Seoul, KR;

Iqbal Mahboob, Gujranwals, PK;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 5/00 ;
U.S. Cl.
CPC ...
H03M 5/00 ;
Abstract

A method of generating and allocating codewords includes allocating one of two selectable codewords b and b as codeword “b” when a preceding codeword “a” and a following codeword “b” form a code stream X, in which the codewords b and b have opposite INV values which are parameters indicating whether the number of '1s' contained in a codeword is an odd number or an even number. When the code stream of the preceding codeword “a” and the following codeword b is X , and when the code stream of the preceding codeword “a” and the following codeword b is X , the codewords are allocated such that the INV values of X and X are maintained to be opposite when the preceding codeword “a” or the following codeword b (b ) (b or b ) should be replaced by another codeword in compliance with a predetermined boundary condition given between codewords. The codewords are allocated so that a DC suppression capability of the code stream can be maintained.


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