改善されたDC抑圧能力を有するRLLコード変復調方法

Japanese Patent JP3744824

B2

A modulation method and a demodulation method for a run length limited (RLL) code having an improved direct current (DC) suppression capability are provided. In this modulation method, received data is modulated using a DC suppression control code group which is separate from a data modulation conversion code group. The DC suppression control code group makes the most of the characteristics of codewords in conversion code groups, such as, the sign of parameter CSV representing the DC value within a codeword and the characteristics of parameter INV predicting the DSV transition direction of the next codeword, and yet relaxes the redundant codeword generation condition or the condition of usable codewords compared to the data modulation conversion code group. Therefore, the number of codewords increases, so that the probability of DC suppression control further increases.

JP4522969	Recording device, playback device, recording medium, control method of recording device, control method of playback device, control program of recording device, control program of playback device, and recording medium for control program.
JP2004312768	VIDEO DATABASE SYSTEM
WO/2006/121049	DATA PROCESSING DEVICE

Sinking

JP2001251953A

February 15, 2006

August 22, 2001

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Samsung Electronics Co.,Ltd.

G11B20/12; H03M7/14; G11B20/10; G11B20/14; H03M5/14; H03M7/46

JP8031100A
JP4339365A
JP10242866A

EP1037389A1

Masatake Shiga
Takashi Watanabe

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