Title:
【発明の名称】一連のデータワードを変調信号に変換する方法及び装置
Document Type and Number:
Japanese Patent JP2003536345
Kind Code:
A
Abstract:
The present invention relates to method and apparatus of converting a series of data words into modulated signals. This method divides a data word, which a sync signal is to be added in front or rear of when it is written in a recording medium, into two or more word segments, generates for each word segment a number of intermediate sequences by combining mutually different digital words with that word segment, scrambles these intermediate sequences to form alternative sequences, translates each alternative sequence into a (d,k) constrained sequence, checks how many undesired sub-sequences are contained in each (d,k) constrained sequence, and selects one (d,k) constrained sequence for recording on an optical or magneto-optical recording medium among the (d,k) constrained sequences not having the undesired sub-sequence. Applying this method to a modulating device, DSV control can be conducted by much simpler hardware.
Inventors:
Iming, keith a schumamer
Anne, Seong Khun
Sue, Sun Eun
Kim, Jin Young
Anne, Seong Khun
Sue, Sun Eun
Kim, Jin Young
Application Number:
JP2002504029A
Publication Date:
December 02, 2003
Filing Date:
March 29, 2001
Export Citation:
Assignee:
LG Electronics Inc.
International Classes:
G06F5/00; G11B20/10; G11B20/12; G11B20/14; G11B20/18; H03M5/14; H03M7/14; H03M7/46; (IPC1-7): H03M7/14; G11B20/14
Attorney, Agent or Firm:
Masaki Yamakawa