Title:
MODULATION METHOD, MODULATOR, RECORDING MEDIUM, DEMODULATION METHOD, AND DEMODULATOR
Document Type and Number:
Japanese Patent JP3916055
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the frequency of DSV (digital sum value) control and to reduce the size of a sub-coding table, in the EFMCC, in which the frequency of the DSV control with only a basic table for generating a 15-bit code word is low, and most of the DSV control is performed with a 17-bit sub-coding table, and in which two 17-bit coding tables are required as the sub-coding table.
SOLUTION: Using the 15-bit main coding table, the first sub-coding table, and the second sub-coding table, prescribed connection bits are added to the code word coded with the sub-coding table so as to be connected to the code word coded with the main coding table. Accordingly, 8 bits are converted into 15 bits or 17 bits.
Inventors:
Atsushi Hayami
Application Number:
JP2002091029A
Publication Date:
May 16, 2007
Filing Date:
March 28, 2002
Export Citation:
Assignee:
Victor Company of Japan, Ltd.
International Classes:
G11B20/14; G11B20/10; H03M5/14; H03M7/14; H03M7/46; (IPC1-7): G11B20/14; H03M7/14
Domestic Patent References:
| JP2000286709A | ||||
| JP9162744A | ||||
| JP7245565A |