Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR ARRANGING CODEWORD
Document Type and Number:
Japanese Patent JP3953482
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide high efficiency in recording density by using short codeword bits as codeword length for main conversion, and provide a method for generating and arranging the codeword having excellent DC suppression capability, by arranging the codeword to maintain the DC suppression capability of the code array, even in the case that one codeword is replaced with another codeword without satisfying the run-length condition between the codewords.
SOLUTION: When a preceding codeword (a) and a successive codeword b form a code array X, a step of arranging the codeword b as a codeword that is selectable from codewords b1 and b2 having parameter characteristics indicating whether the number of "1" contained in the codeword is an odd number or an even number, which are opposite to each other; and a step of, assuming that a code array of (a) and b1 is X1 and a code array of (a)and b2 is X2, when the codeword is replaced with another codeword having different (a) or b1, b2 according to predetermined boundary conditions given among respective codewords, arranging the codeword such that INV of X1 is maintained oppositely to INV of X2.


Inventors:
Sinking
Gold base
Park Woo Soo
Ding Hai
Application Number:
JP2004202308A
Publication Date:
August 08, 2007
Filing Date:
July 08, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Samsung Electronics Co.,Ltd.
International Classes:
G11B20/14; H04N5/92; G11B20/10; H03M5/14; H03M7/14; H03M7/46; (IPC1-7): G11B20/14; H03M7/14
Domestic Patent References:
JP2000286710A
JP10242866A
JP8031100A
JP4339365A
JP2002135121A
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito